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`\n // and attach a portal programmatically in the parent component. When Angular does the first CD\n // round, it will fire the setter with empty string, causing the user's content to be cleared.\n if (this.hasAttached() && !portal && !this._isInitialized) {\n return;\n }\n if (this.hasAttached()) {\n _super.prototype.detach.call(this);\n }\n if (portal) {\n _super.prototype.attach.call(this, portal);\n }\n this._attachedPortal = portal;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkPortalOutlet.prototype, \"attachedRef\", {\n /** Component or view reference that is attached to the portal. */\n get: /**\n * Component or view reference that is attached to the portal.\n * @return {?}\n */\n function () {\n return this._attachedRef;\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkPortalOutlet.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n this._isInitialized = true;\n };\n /**\n * @return {?}\n */\n CdkPortalOutlet.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n _super.prototype.dispose.call(this);\n this._attachedPortal = null;\n this._attachedRef = null;\n };\n /**\n * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n *\n * @param portal Portal to be attached to the portal outlet.\n * @returns Reference to the created component.\n */\n /**\n * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n *\n * @template T\n * @param {?} portal Portal to be attached to the portal outlet.\n * @return {?} Reference to the created component.\n */\n CdkPortalOutlet.prototype.attachComponentPortal = /**\n * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n *\n * @template T\n * @param {?} portal Portal to be attached to the portal outlet.\n * @return {?} Reference to the created component.\n */\n function (portal) {\n portal.setAttachedHost(this);\n // If the portal specifies an origin, use that as the logical location of the component\n // in the application tree. Otherwise use the location of this PortalOutlet.\n /** @type {?} */\n var viewContainerRef = portal.viewContainerRef != null ?\n portal.viewContainerRef :\n this._viewContainerRef;\n /** @type {?} */\n var resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n /** @type {?} */\n var componentFactory = resolver.resolveComponentFactory(portal.component);\n /** @type {?} */\n var ref = viewContainerRef.createComponent(componentFactory, viewContainerRef.length, portal.injector || viewContainerRef.injector);\n _super.prototype.setDisposeFn.call(this, function () { return ref.destroy(); });\n this._attachedPortal = portal;\n this._attachedRef = ref;\n this.attached.emit(ref);\n return ref;\n };\n /**\n * Attach the given TemplatePortal to this PortlHost as an embedded View.\n * @param portal Portal to be attached.\n * @returns Reference to the created embedded view.\n */\n /**\n * Attach the given TemplatePortal to this PortlHost as an embedded View.\n * @template C\n * @param {?} portal Portal to be attached.\n * @return {?} Reference to the created embedded view.\n */\n CdkPortalOutlet.prototype.attachTemplatePortal = /**\n * Attach the given TemplatePortal to this PortlHost as an embedded View.\n * @template C\n * @param {?} portal Portal to be attached.\n * @return {?} Reference to the created embedded view.\n */\n function (portal) {\n var _this = this;\n portal.setAttachedHost(this);\n /** @type {?} */\n var viewRef = this._viewContainerRef.createEmbeddedView(portal.templateRef, portal.context);\n _super.prototype.setDisposeFn.call(this, function () { return _this._viewContainerRef.clear(); });\n this._attachedPortal = portal;\n this._attachedRef = viewRef;\n this.attached.emit(viewRef);\n return viewRef;\n };\n CdkPortalOutlet.decorators = [\n { type: Directive, args: [{\n selector: '[cdkPortalOutlet], [cdkPortalHost], [portalHost]',\n exportAs: 'cdkPortalOutlet, cdkPortalHost',\n inputs: ['portal: cdkPortalOutlet']\n },] },\n ];\n /** @nocollapse */\n CdkPortalOutlet.ctorParameters = function () { return [\n { type: ComponentFactoryResolver },\n { type: ViewContainerRef }\n ]; };\n CdkPortalOutlet.propDecorators = {\n attached: [{ type: Output }]\n };\n return CdkPortalOutlet;\n}(BasePortalOutlet));\nvar PortalModule = /** @class */ (function () {\n function PortalModule() {\n }\n PortalModule.decorators = [\n { type: NgModule, args: [{\n exports: [CdkPortal, CdkPortalOutlet],\n declarations: [CdkPortal, CdkPortalOutlet],\n },] },\n ];\n return PortalModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Custom injector to be used when providing custom\n * injection tokens to components inside a portal.\n * \\@docs-private\n */\nvar /**\n * Custom injector to be used when providing custom\n * injection tokens to components inside a portal.\n * \\@docs-private\n */\nPortalInjector = /** @class */ (function () {\n function PortalInjector(_parentInjector, _customTokens) {\n this._parentInjector = _parentInjector;\n this._customTokens = _customTokens;\n }\n /**\n * @param {?} token\n * @param {?=} notFoundValue\n * @return {?}\n */\n PortalInjector.prototype.get = /**\n * @param {?} token\n * @param {?=} notFoundValue\n * @return {?}\n */\n function (token, notFoundValue) {\n /** @type {?} */\n var value = this._customTokens.get(token);\n if (typeof value !== 'undefined') {\n return value;\n }\n return this._parentInjector.get(token, notFoundValue);\n };\n return PortalInjector;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { DomPortalOutlet as DomPortalHost, CdkPortalOutlet as PortalHostDirective, CdkPortal as TemplatePortalDirective, BasePortalOutlet as BasePortalHost, Portal, ComponentPortal, TemplatePortal, BasePortalOutlet, DomPortalOutlet, CdkPortal, CdkPortalOutlet, PortalModule, PortalInjector };\n//# sourceMappingURL=portal.es5.js.map\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { InjectionToken, Directive, forwardRef, Input, Injectable, NgZone, Optional, SkipSelf, ElementRef, NgModule, IterableDiffers, TemplateRef, ViewContainerRef, ChangeDetectionStrategy, ChangeDetectorRef, Component, Inject, Output, ViewChild, ViewEncapsulation, defineInjectable, inject } from '@angular/core';\nimport { coerceNumberProperty } from '@angular/cdk/coercion';\nimport { Subject, fromEvent, of, Observable, animationFrameScheduler, merge } from 'rxjs';\nimport { distinctUntilChanged, auditTime, filter, takeUntil, startWith, pairwise, shareReplay, switchMap } from 'rxjs/operators';\nimport { Platform, getRtlScrollAxisType, RtlScrollAxisType, supportsScrollBehavior, PlatformModule } from '@angular/cdk/platform';\nimport { Directionality, BidiModule } from '@angular/cdk/bidi';\nimport { __extends } from 'tslib';\nimport { ArrayDataSource, DataSource } from '@angular/cdk/collections';\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The injection token used to specify the virtual scrolling strategy.\n * @type {?}\n */\nvar VIRTUAL_SCROLL_STRATEGY = new InjectionToken('VIRTUAL_SCROLL_STRATEGY');\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Virtual scrolling strategy for lists with items of known fixed size.\n */\nvar /**\n * Virtual scrolling strategy for lists with items of known fixed size.\n */\nFixedSizeVirtualScrollStrategy = /** @class */ (function () {\n /**\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n function FixedSizeVirtualScrollStrategy(itemSize, minBufferPx, maxBufferPx) {\n this._scrolledIndexChange = new Subject();\n /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n */\n this.scrolledIndexChange = this._scrolledIndexChange.pipe(distinctUntilChanged());\n /**\n * The attached viewport.\n */\n this._viewport = null;\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n }\n /**\n * Attaches this scroll strategy to a viewport.\n * @param viewport The viewport to attach this strategy to.\n */\n /**\n * Attaches this scroll strategy to a viewport.\n * @param {?} viewport The viewport to attach this strategy to.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.attach = /**\n * Attaches this scroll strategy to a viewport.\n * @param {?} viewport The viewport to attach this strategy to.\n * @return {?}\n */\n function (viewport) {\n this._viewport = viewport;\n this._updateTotalContentSize();\n this._updateRenderedRange();\n };\n /** Detaches this scroll strategy from the currently attached viewport. */\n /**\n * Detaches this scroll strategy from the currently attached viewport.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.detach = /**\n * Detaches this scroll strategy from the currently attached viewport.\n * @return {?}\n */\n function () {\n this._scrolledIndexChange.complete();\n this._viewport = null;\n };\n /**\n * Update the item size and buffer size.\n * @param itemSize The size of the items in the virtually scrolling list.\n * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n */\n /**\n * Update the item size and buffer size.\n * @param {?} itemSize The size of the items in the virtually scrolling list.\n * @param {?} minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param {?} maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.updateItemAndBufferSize = /**\n * Update the item size and buffer size.\n * @param {?} itemSize The size of the items in the virtually scrolling list.\n * @param {?} minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n * @param {?} maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n * @return {?}\n */\n function (itemSize, minBufferPx, maxBufferPx) {\n if (maxBufferPx < minBufferPx) {\n throw Error('CDK virtual scroll: maxBufferPx must be greater than or equal to minBufferPx');\n }\n this._itemSize = itemSize;\n this._minBufferPx = minBufferPx;\n this._maxBufferPx = maxBufferPx;\n this._updateTotalContentSize();\n this._updateRenderedRange();\n };\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.onContentScrolled = /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n function () {\n this._updateRenderedRange();\n };\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.onDataLengthChanged = /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n function () {\n this._updateTotalContentSize();\n this._updateRenderedRange();\n };\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.onContentRendered = /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n function () { };\n /** @docs-private Implemented as part of VirtualScrollStrategy. */\n /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.onRenderedOffsetChanged = /**\n * \\@docs-private Implemented as part of VirtualScrollStrategy.\n * @return {?}\n */\n function () { };\n /**\n * Scroll to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling.\n */\n /**\n * Scroll to the offset for the given index.\n * @param {?} index The index of the element to scroll to.\n * @param {?} behavior The ScrollBehavior to use when scrolling.\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype.scrollToIndex = /**\n * Scroll to the offset for the given index.\n * @param {?} index The index of the element to scroll to.\n * @param {?} behavior The ScrollBehavior to use when scrolling.\n * @return {?}\n */\n function (index, behavior) {\n if (this._viewport) {\n this._viewport.scrollToOffset(index * this._itemSize, behavior);\n }\n };\n /** Update the viewport's total content size. */\n /**\n * Update the viewport's total content size.\n * @private\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype._updateTotalContentSize = /**\n * Update the viewport's total content size.\n * @private\n * @return {?}\n */\n function () {\n if (!this._viewport) {\n return;\n }\n this._viewport.setTotalContentSize(this._viewport.getDataLength() * this._itemSize);\n };\n /** Update the viewport's rendered range. */\n /**\n * Update the viewport's rendered range.\n * @private\n * @return {?}\n */\n FixedSizeVirtualScrollStrategy.prototype._updateRenderedRange = /**\n * Update the viewport's rendered range.\n * @private\n * @return {?}\n */\n function () {\n if (!this._viewport) {\n return;\n }\n /** @type {?} */\n var scrollOffset = this._viewport.measureScrollOffset();\n /** @type {?} */\n var firstVisibleIndex = scrollOffset / this._itemSize;\n /** @type {?} */\n var renderedRange = this._viewport.getRenderedRange();\n /** @type {?} */\n var newRange = { start: renderedRange.start, end: renderedRange.end };\n /** @type {?} */\n var viewportSize = this._viewport.getViewportSize();\n /** @type {?} */\n var dataLength = this._viewport.getDataLength();\n /** @type {?} */\n var startBuffer = scrollOffset - newRange.start * this._itemSize;\n if (startBuffer < this._minBufferPx && newRange.start != 0) {\n /** @type {?} */\n var expandStart = Math.ceil((this._maxBufferPx - startBuffer) / this._itemSize);\n newRange.start = Math.max(0, newRange.start - expandStart);\n newRange.end = Math.min(dataLength, Math.ceil(firstVisibleIndex + (viewportSize + this._minBufferPx) / this._itemSize));\n }\n else {\n /** @type {?} */\n var endBuffer = newRange.end * this._itemSize - (scrollOffset + viewportSize);\n if (endBuffer < this._minBufferPx && newRange.end != dataLength) {\n /** @type {?} */\n var expandEnd = Math.ceil((this._maxBufferPx - endBuffer) / this._itemSize);\n if (expandEnd > 0) {\n newRange.end = Math.min(dataLength, newRange.end + expandEnd);\n newRange.start = Math.max(0, Math.floor(firstVisibleIndex - this._minBufferPx / this._itemSize));\n }\n }\n }\n this._viewport.setRenderedRange(newRange);\n this._viewport.setRenderedContentOffset(this._itemSize * newRange.start);\n this._scrolledIndexChange.next(Math.floor(firstVisibleIndex));\n };\n return FixedSizeVirtualScrollStrategy;\n}());\n/**\n * Provider factory for `FixedSizeVirtualScrollStrategy` that simply extracts the already created\n * `FixedSizeVirtualScrollStrategy` from the given directive.\n * @param {?} fixedSizeDir The instance of `CdkFixedSizeVirtualScroll` to extract the\n * `FixedSizeVirtualScrollStrategy` from.\n * @return {?}\n */\nfunction _fixedSizeVirtualScrollStrategyFactory(fixedSizeDir) {\n return fixedSizeDir._scrollStrategy;\n}\n/**\n * A virtual scroll strategy that supports fixed-size items.\n */\nvar CdkFixedSizeVirtualScroll = /** @class */ (function () {\n function CdkFixedSizeVirtualScroll() {\n this._itemSize = 20;\n this._minBufferPx = 100;\n this._maxBufferPx = 200;\n /**\n * The scroll strategy used by this directive.\n */\n this._scrollStrategy = new FixedSizeVirtualScrollStrategy(this.itemSize, this.minBufferPx, this.maxBufferPx);\n }\n Object.defineProperty(CdkFixedSizeVirtualScroll.prototype, \"itemSize\", {\n /** The size of the items in the list (in pixels). */\n get: /**\n * The size of the items in the list (in pixels).\n * @return {?}\n */\n function () { return this._itemSize; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) { this._itemSize = coerceNumberProperty(value); },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkFixedSizeVirtualScroll.prototype, \"minBufferPx\", {\n /**\n * The minimum amount of buffer rendered beyond the viewport (in pixels).\n * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n */\n get: /**\n * The minimum amount of buffer rendered beyond the viewport (in pixels).\n * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n * @return {?}\n */\n function () { return this._minBufferPx; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) { this._minBufferPx = coerceNumberProperty(value); },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkFixedSizeVirtualScroll.prototype, \"maxBufferPx\", {\n /**\n * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n */\n get: /**\n * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n * @return {?}\n */\n function () { return this._maxBufferPx; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) { this._maxBufferPx = coerceNumberProperty(value); },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkFixedSizeVirtualScroll.prototype.ngOnChanges = /**\n * @return {?}\n */\n function () {\n this._scrollStrategy.updateItemAndBufferSize(this.itemSize, this.minBufferPx, this.maxBufferPx);\n };\n CdkFixedSizeVirtualScroll.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-virtual-scroll-viewport[itemSize]',\n providers: [{\n provide: VIRTUAL_SCROLL_STRATEGY,\n useFactory: _fixedSizeVirtualScrollStrategyFactory,\n deps: [forwardRef(function () { return CdkFixedSizeVirtualScroll; })],\n }],\n },] },\n ];\n CdkFixedSizeVirtualScroll.propDecorators = {\n itemSize: [{ type: Input }],\n minBufferPx: [{ type: Input }],\n maxBufferPx: [{ type: Input }]\n };\n return CdkFixedSizeVirtualScroll;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Time in ms to throttle the scrolling events by default.\n * @type {?}\n */\nvar DEFAULT_SCROLL_TIME = 20;\n/**\n * Service contained all registered Scrollable references and emits an event when any one of the\n * Scrollable references emit a scrolled event.\n */\nvar ScrollDispatcher = /** @class */ (function () {\n function ScrollDispatcher(_ngZone, _platform) {\n this._ngZone = _ngZone;\n this._platform = _platform;\n /**\n * Subject for notifying that a registered scrollable reference element has been scrolled.\n */\n this._scrolled = new Subject();\n /**\n * Keeps track of the global `scroll` and `resize` subscriptions.\n */\n this._globalSubscription = null;\n /**\n * Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards.\n */\n this._scrolledCount = 0;\n /**\n * Map of all the scrollable references that are registered with the service and their\n * scroll event subscriptions.\n */\n this.scrollContainers = new Map();\n }\n /**\n * Registers a scrollable instance with the service and listens for its scrolled events. When the\n * scrollable is scrolled, the service emits the event to its scrolled observable.\n * @param scrollable Scrollable instance to be registered.\n */\n /**\n * Registers a scrollable instance with the service and listens for its scrolled events. When the\n * scrollable is scrolled, the service emits the event to its scrolled observable.\n * @param {?} scrollable Scrollable instance to be registered.\n * @return {?}\n */\n ScrollDispatcher.prototype.register = /**\n * Registers a scrollable instance with the service and listens for its scrolled events. When the\n * scrollable is scrolled, the service emits the event to its scrolled observable.\n * @param {?} scrollable Scrollable instance to be registered.\n * @return {?}\n */\n function (scrollable) {\n var _this = this;\n if (!this.scrollContainers.has(scrollable)) {\n this.scrollContainers.set(scrollable, scrollable.elementScrolled()\n .subscribe(function () { return _this._scrolled.next(scrollable); }));\n }\n };\n /**\n * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n * @param scrollable Scrollable instance to be deregistered.\n */\n /**\n * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n * @param {?} scrollable Scrollable instance to be deregistered.\n * @return {?}\n */\n ScrollDispatcher.prototype.deregister = /**\n * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n * @param {?} scrollable Scrollable instance to be deregistered.\n * @return {?}\n */\n function (scrollable) {\n /** @type {?} */\n var scrollableReference = this.scrollContainers.get(scrollable);\n if (scrollableReference) {\n scrollableReference.unsubscribe();\n this.scrollContainers.delete(scrollable);\n }\n };\n /**\n * Returns an observable that emits an event whenever any of the registered Scrollable\n * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n * to override the default \"throttle\" time.\n *\n * **Note:** in order to avoid hitting change detection for every scroll event,\n * all of the events emitted from this stream will be run outside the Angular zone.\n * If you need to update any data bindings as a result of a scroll event, you have\n * to run the callback using `NgZone.run`.\n */\n /**\n * Returns an observable that emits an event whenever any of the registered Scrollable\n * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n * to override the default \"throttle\" time.\n *\n * **Note:** in order to avoid hitting change detection for every scroll event,\n * all of the events emitted from this stream will be run outside the Angular zone.\n * If you need to update any data bindings as a result of a scroll event, you have\n * to run the callback using `NgZone.run`.\n * @param {?=} auditTimeInMs\n * @return {?}\n */\n ScrollDispatcher.prototype.scrolled = /**\n * Returns an observable that emits an event whenever any of the registered Scrollable\n * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n * to override the default \"throttle\" time.\n *\n * **Note:** in order to avoid hitting change detection for every scroll event,\n * all of the events emitted from this stream will be run outside the Angular zone.\n * If you need to update any data bindings as a result of a scroll event, you have\n * to run the callback using `NgZone.run`.\n * @param {?=} auditTimeInMs\n * @return {?}\n */\n function (auditTimeInMs) {\n var _this = this;\n if (auditTimeInMs === void 0) { auditTimeInMs = DEFAULT_SCROLL_TIME; }\n if (!this._platform.isBrowser) {\n return of();\n }\n return new Observable(function (observer) {\n if (!_this._globalSubscription) {\n _this._addGlobalListener();\n }\n // In the case of a 0ms delay, use an observable without auditTime\n // since it does add a perceptible delay in processing overhead.\n /** @type {?} */\n var subscription = auditTimeInMs > 0 ?\n _this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer) :\n _this._scrolled.subscribe(observer);\n _this._scrolledCount++;\n return function () {\n subscription.unsubscribe();\n _this._scrolledCount--;\n if (!_this._scrolledCount) {\n _this._removeGlobalListener();\n }\n };\n });\n };\n /**\n * @return {?}\n */\n ScrollDispatcher.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n var _this = this;\n this._removeGlobalListener();\n this.scrollContainers.forEach(function (_, container) { return _this.deregister(container); });\n this._scrolled.complete();\n };\n /**\n * Returns an observable that emits whenever any of the\n * scrollable ancestors of an element are scrolled.\n * @param elementRef Element whose ancestors to listen for.\n * @param auditTimeInMs Time to throttle the scroll events.\n */\n /**\n * Returns an observable that emits whenever any of the\n * scrollable ancestors of an element are scrolled.\n * @param {?} elementRef Element whose ancestors to listen for.\n * @param {?=} auditTimeInMs Time to throttle the scroll events.\n * @return {?}\n */\n ScrollDispatcher.prototype.ancestorScrolled = /**\n * Returns an observable that emits whenever any of the\n * scrollable ancestors of an element are scrolled.\n * @param {?} elementRef Element whose ancestors to listen for.\n * @param {?=} auditTimeInMs Time to throttle the scroll events.\n * @return {?}\n */\n function (elementRef, auditTimeInMs) {\n /** @type {?} */\n var ancestors = this.getAncestorScrollContainers(elementRef);\n return this.scrolled(auditTimeInMs).pipe(filter(function (target) {\n return !target || ancestors.indexOf(target) > -1;\n }));\n };\n /** Returns all registered Scrollables that contain the provided element. */\n /**\n * Returns all registered Scrollables that contain the provided element.\n * @param {?} elementRef\n * @return {?}\n */\n ScrollDispatcher.prototype.getAncestorScrollContainers = /**\n * Returns all registered Scrollables that contain the provided element.\n * @param {?} elementRef\n * @return {?}\n */\n function (elementRef) {\n var _this = this;\n /** @type {?} */\n var scrollingContainers = [];\n this.scrollContainers.forEach(function (_subscription, scrollable) {\n if (_this._scrollableContainsElement(scrollable, elementRef)) {\n scrollingContainers.push(scrollable);\n }\n });\n return scrollingContainers;\n };\n /** Returns true if the element is contained within the provided Scrollable. */\n /**\n * Returns true if the element is contained within the provided Scrollable.\n * @private\n * @param {?} scrollable\n * @param {?} elementRef\n * @return {?}\n */\n ScrollDispatcher.prototype._scrollableContainsElement = /**\n * Returns true if the element is contained within the provided Scrollable.\n * @private\n * @param {?} scrollable\n * @param {?} elementRef\n * @return {?}\n */\n function (scrollable, elementRef) {\n /** @type {?} */\n var element = elementRef.nativeElement;\n /** @type {?} */\n var scrollableElement = scrollable.getElementRef().nativeElement;\n // Traverse through the element parents until we reach null, checking if any of the elements\n // are the scrollable's element.\n do {\n if (element == scrollableElement) {\n return true;\n }\n } while (element = (/** @type {?} */ (element)).parentElement);\n return false;\n };\n /** Sets up the global scroll listeners. */\n /**\n * Sets up the global scroll listeners.\n * @private\n * @return {?}\n */\n ScrollDispatcher.prototype._addGlobalListener = /**\n * Sets up the global scroll listeners.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n this._globalSubscription = this._ngZone.runOutsideAngular(function () {\n return fromEvent(window.document, 'scroll').subscribe(function () { return _this._scrolled.next(); });\n });\n };\n /** Cleans up the global scroll listener. */\n /**\n * Cleans up the global scroll listener.\n * @private\n * @return {?}\n */\n ScrollDispatcher.prototype._removeGlobalListener = /**\n * Cleans up the global scroll listener.\n * @private\n * @return {?}\n */\n function () {\n if (this._globalSubscription) {\n this._globalSubscription.unsubscribe();\n this._globalSubscription = null;\n }\n };\n ScrollDispatcher.decorators = [\n { type: Injectable, args: [{ providedIn: 'root' },] },\n ];\n /** @nocollapse */\n ScrollDispatcher.ctorParameters = function () { return [\n { type: NgZone },\n { type: Platform }\n ]; };\n /** @nocollapse */ ScrollDispatcher.ngInjectableDef = defineInjectable({ factory: function ScrollDispatcher_Factory() { return new ScrollDispatcher(inject(NgZone), inject(Platform)); }, token: ScrollDispatcher, providedIn: \"root\" });\n return ScrollDispatcher;\n}());\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @param {?} parentDispatcher\n * @param {?} ngZone\n * @param {?} platform\n * @return {?}\n */\nfunction SCROLL_DISPATCHER_PROVIDER_FACTORY(parentDispatcher, ngZone, platform) {\n return parentDispatcher || new ScrollDispatcher(ngZone, platform);\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @type {?}\n */\nvar SCROLL_DISPATCHER_PROVIDER = {\n // If there is already a ScrollDispatcher available, use that. Otherwise, provide a new one.\n provide: ScrollDispatcher,\n deps: [[new Optional(), new SkipSelf(), ScrollDispatcher], NgZone, Platform],\n useFactory: SCROLL_DISPATCHER_PROVIDER_FACTORY\n};\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Sends an event when the directive's element is scrolled. Registers itself with the\n * ScrollDispatcher service to include itself as part of its collection of scrolling events that it\n * can be listened to through the service.\n */\nvar CdkScrollable = /** @class */ (function () {\n function CdkScrollable(elementRef, scrollDispatcher, ngZone, dir) {\n var _this = this;\n this.elementRef = elementRef;\n this.scrollDispatcher = scrollDispatcher;\n this.ngZone = ngZone;\n this.dir = dir;\n this._destroyed = new Subject();\n this._elementScrolled = new Observable(function (observer) {\n return _this.ngZone.runOutsideAngular(function () {\n return fromEvent(_this.elementRef.nativeElement, 'scroll').pipe(takeUntil(_this._destroyed))\n .subscribe(observer);\n });\n });\n }\n /**\n * @return {?}\n */\n CdkScrollable.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n this.scrollDispatcher.register(this);\n };\n /**\n * @return {?}\n */\n CdkScrollable.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this.scrollDispatcher.deregister(this);\n this._destroyed.next();\n this._destroyed.complete();\n };\n /** Returns observable that emits when a scroll event is fired on the host element. */\n /**\n * Returns observable that emits when a scroll event is fired on the host element.\n * @return {?}\n */\n CdkScrollable.prototype.elementScrolled = /**\n * Returns observable that emits when a scroll event is fired on the host element.\n * @return {?}\n */\n function () {\n return this._elementScrolled;\n };\n /** Gets the ElementRef for the viewport. */\n /**\n * Gets the ElementRef for the viewport.\n * @return {?}\n */\n CdkScrollable.prototype.getElementRef = /**\n * Gets the ElementRef for the viewport.\n * @return {?}\n */\n function () {\n return this.elementRef;\n };\n /**\n * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param options specified the offsets to scroll to.\n */\n /**\n * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param {?} options specified the offsets to scroll to.\n * @return {?}\n */\n CdkScrollable.prototype.scrollTo = /**\n * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param {?} options specified the offsets to scroll to.\n * @return {?}\n */\n function (options) {\n /** @type {?} */\n var el = this.elementRef.nativeElement;\n /** @type {?} */\n var isRtl = this.dir && this.dir.value == 'rtl';\n // Rewrite start & end offsets as right or left offsets.\n options.left = options.left == null ? (isRtl ? options.end : options.start) : options.left;\n options.right = options.right == null ? (isRtl ? options.start : options.end) : options.right;\n // Rewrite the bottom offset as a top offset.\n if (options.bottom != null) {\n ((/** @type {?} */ (options))).top =\n el.scrollHeight - el.clientHeight - options.bottom;\n }\n // Rewrite the right offset as a left offset.\n if (isRtl && getRtlScrollAxisType() != RtlScrollAxisType.NORMAL) {\n if (options.left != null) {\n ((/** @type {?} */ (options))).right =\n el.scrollWidth - el.clientWidth - options.left;\n }\n if (getRtlScrollAxisType() == RtlScrollAxisType.INVERTED) {\n options.left = options.right;\n }\n else if (getRtlScrollAxisType() == RtlScrollAxisType.NEGATED) {\n options.left = options.right ? -options.right : options.right;\n }\n }\n else {\n if (options.right != null) {\n ((/** @type {?} */ (options))).left =\n el.scrollWidth - el.clientWidth - options.right;\n }\n }\n this._applyScrollToOptions(options);\n };\n /**\n * @private\n * @param {?} options\n * @return {?}\n */\n CdkScrollable.prototype._applyScrollToOptions = /**\n * @private\n * @param {?} options\n * @return {?}\n */\n function (options) {\n /** @type {?} */\n var el = this.elementRef.nativeElement;\n if (supportsScrollBehavior()) {\n el.scrollTo(options);\n }\n else {\n if (options.top != null) {\n el.scrollTop = options.top;\n }\n if (options.left != null) {\n el.scrollLeft = options.left;\n }\n }\n };\n /**\n * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param from The edge to measure from.\n */\n /**\n * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param {?} from The edge to measure from.\n * @return {?}\n */\n CdkScrollable.prototype.measureScrollOffset = /**\n * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n * left and right always refer to the left and right side of the scrolling container irrespective\n * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n * in an RTL context.\n * @param {?} from The edge to measure from.\n * @return {?}\n */\n function (from) {\n /** @type {?} */\n var LEFT = 'left';\n /** @type {?} */\n var RIGHT = 'right';\n /** @type {?} */\n var el = this.elementRef.nativeElement;\n if (from == 'top') {\n return el.scrollTop;\n }\n if (from == 'bottom') {\n return el.scrollHeight - el.clientHeight - el.scrollTop;\n }\n // Rewrite start & end as left or right offsets.\n /** @type {?} */\n var isRtl = this.dir && this.dir.value == 'rtl';\n if (from == 'start') {\n from = isRtl ? RIGHT : LEFT;\n }\n else if (from == 'end') {\n from = isRtl ? LEFT : RIGHT;\n }\n if (isRtl && getRtlScrollAxisType() == RtlScrollAxisType.INVERTED) {\n // For INVERTED, scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n }\n else {\n return el.scrollLeft;\n }\n }\n else if (isRtl && getRtlScrollAxisType() == RtlScrollAxisType.NEGATED) {\n // For NEGATED, scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and\n // 0 when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft + el.scrollWidth - el.clientWidth;\n }\n else {\n return -el.scrollLeft;\n }\n }\n else {\n // For NORMAL, as well as non-RTL contexts, scrollLeft is 0 when scrolled all the way left and\n // (scrollWidth - clientWidth) when scrolled all the way right.\n if (from == LEFT) {\n return el.scrollLeft;\n }\n else {\n return el.scrollWidth - el.clientWidth - el.scrollLeft;\n }\n }\n };\n CdkScrollable.decorators = [\n { type: Directive, args: [{\n selector: '[cdk-scrollable], [cdkScrollable]'\n },] },\n ];\n /** @nocollapse */\n CdkScrollable.ctorParameters = function () { return [\n { type: ElementRef },\n { type: ScrollDispatcher },\n { type: NgZone },\n { type: Directionality, decorators: [{ type: Optional }] }\n ]; };\n return CdkScrollable;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Checks if the given ranges are equal.\n * @param {?} r1\n * @param {?} r2\n * @return {?}\n */\nfunction rangesEqual(r1, r2) {\n return r1.start == r2.start && r1.end == r2.end;\n}\n/**\n * A viewport that virtualizes it's scrolling with the help of `CdkVirtualForOf`.\n */\nvar CdkVirtualScrollViewport = /** @class */ (function (_super) {\n __extends(CdkVirtualScrollViewport, _super);\n function CdkVirtualScrollViewport(elementRef, _changeDetectorRef, ngZone, _scrollStrategy, dir, scrollDispatcher) {\n var _this = _super.call(this, elementRef, scrollDispatcher, ngZone, dir) || this;\n _this.elementRef = elementRef;\n _this._changeDetectorRef = _changeDetectorRef;\n _this._scrollStrategy = _scrollStrategy;\n /**\n * Emits when the viewport is detached from a CdkVirtualForOf.\n */\n _this._detachedSubject = new Subject();\n /**\n * Emits when the rendered range changes.\n */\n _this._renderedRangeSubject = new Subject();\n /**\n * The direction the viewport scrolls.\n */\n _this.orientation = 'vertical';\n // Note: we don't use the typical EventEmitter here because we need to subscribe to the scroll\n // strategy lazily (i.e. only if the user is actually listening to the events). We do this because\n // depending on how the strategy calculates the scrolled index, it may come at a cost to\n // performance.\n /**\n * Emits when the index of the first element visible in the viewport changes.\n */\n _this.scrolledIndexChange = new Observable(function (observer) {\n return _this._scrollStrategy.scrolledIndexChange.subscribe(function (index) {\n return Promise.resolve().then(function () { return _this.ngZone.run(function () { return observer.next(index); }); });\n });\n });\n /**\n * A stream that emits whenever the rendered range changes.\n */\n _this.renderedRangeStream = _this._renderedRangeSubject.asObservable();\n /**\n * The transform used to scale the spacer to the same size as all content, including content that\n * is not currently rendered.\n */\n _this._totalContentSizeTransform = '';\n /**\n * The total size of all content (in pixels), including content that is not currently rendered.\n */\n _this._totalContentSize = 0;\n /**\n * The currently rendered range of indices.\n */\n _this._renderedRange = { start: 0, end: 0 };\n /**\n * The length of the data bound to this viewport (in number of items).\n */\n _this._dataLength = 0;\n /**\n * The size of the viewport (in pixels).\n */\n _this._viewportSize = 0;\n /**\n * The last rendered content offset that was set.\n */\n _this._renderedContentOffset = 0;\n /**\n * Whether the last rendered content offset was to the end of the content (and therefore needs to\n * be rewritten as an offset to the start of the content).\n */\n _this._renderedContentOffsetNeedsRewrite = false;\n /**\n * Whether there is a pending change detection cycle.\n */\n _this._isChangeDetectionPending = false;\n /**\n * A list of functions to run after the next change detection cycle.\n */\n _this._runAfterChangeDetection = [];\n if (!_scrollStrategy) {\n throw Error('Error: cdk-virtual-scroll-viewport requires the \"itemSize\" property to be set.');\n }\n return _this;\n }\n /**\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n _super.prototype.ngOnInit.call(this);\n // It's still too early to measure the viewport at this point. Deferring with a promise allows\n // the Viewport to be rendered with the correct size before we measure. We run this outside the\n // zone to avoid causing more change detection cycles. We handle the change detection loop\n // ourselves instead.\n this.ngZone.runOutsideAngular(function () { return Promise.resolve().then(function () {\n _this._measureViewportSize();\n _this._scrollStrategy.attach(_this);\n _this.elementScrolled()\n .pipe(\n // Start off with a fake scroll event so we properly detect our initial position.\n startWith((/** @type {?} */ (null))), \n // Collect multiple events into one until the next animation frame. This way if\n // there are multiple scroll events in the same frame we only need to recheck\n // our layout once.\n auditTime(0, animationFrameScheduler))\n .subscribe(function () { return _this._scrollStrategy.onContentScrolled(); });\n _this._markChangeDetectionNeeded();\n }); });\n };\n /**\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this.detach();\n this._scrollStrategy.detach();\n // Complete all subjects\n this._renderedRangeSubject.complete();\n this._detachedSubject.complete();\n _super.prototype.ngOnDestroy.call(this);\n };\n /** Attaches a `CdkVirtualForOf` to this viewport. */\n /**\n * Attaches a `CdkVirtualForOf` to this viewport.\n * @param {?} forOf\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.attach = /**\n * Attaches a `CdkVirtualForOf` to this viewport.\n * @param {?} forOf\n * @return {?}\n */\n function (forOf) {\n var _this = this;\n if (this._forOf) {\n throw Error('CdkVirtualScrollViewport is already attached.');\n }\n // Subscribe to the data stream of the CdkVirtualForOf to keep track of when the data length\n // changes. Run outside the zone to avoid triggering change detection, since we're managing the\n // change detection loop ourselves.\n this.ngZone.runOutsideAngular(function () {\n _this._forOf = forOf;\n _this._forOf.dataStream.pipe(takeUntil(_this._detachedSubject)).subscribe(function (data) {\n /** @type {?} */\n var newLength = data.length;\n if (newLength !== _this._dataLength) {\n _this._dataLength = newLength;\n _this._scrollStrategy.onDataLengthChanged();\n }\n _this._doChangeDetection();\n });\n });\n };\n /** Detaches the current `CdkVirtualForOf`. */\n /**\n * Detaches the current `CdkVirtualForOf`.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.detach = /**\n * Detaches the current `CdkVirtualForOf`.\n * @return {?}\n */\n function () {\n this._forOf = null;\n this._detachedSubject.next();\n };\n /** Gets the length of the data bound to this viewport (in number of items). */\n /**\n * Gets the length of the data bound to this viewport (in number of items).\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.getDataLength = /**\n * Gets the length of the data bound to this viewport (in number of items).\n * @return {?}\n */\n function () {\n return this._dataLength;\n };\n /** Gets the size of the viewport (in pixels). */\n /**\n * Gets the size of the viewport (in pixels).\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.getViewportSize = /**\n * Gets the size of the viewport (in pixels).\n * @return {?}\n */\n function () {\n return this._viewportSize;\n };\n // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n // setting it to something else, but its error prone and should probably be split into\n // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n /** Get the current rendered range of items. */\n // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n // setting it to something else, but its error prone and should probably be split into\n // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n /**\n * Get the current rendered range of items.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.getRenderedRange = \n // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n // setting it to something else, but its error prone and should probably be split into\n // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n /**\n * Get the current rendered range of items.\n * @return {?}\n */\n function () {\n return this._renderedRange;\n };\n /**\n * Sets the total size of all content (in pixels), including content that is not currently\n * rendered.\n */\n /**\n * Sets the total size of all content (in pixels), including content that is not currently\n * rendered.\n * @param {?} size\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.setTotalContentSize = /**\n * Sets the total size of all content (in pixels), including content that is not currently\n * rendered.\n * @param {?} size\n * @return {?}\n */\n function (size) {\n if (this._totalContentSize !== size) {\n this._totalContentSize = size;\n /** @type {?} */\n var axis = this.orientation == 'horizontal' ? 'X' : 'Y';\n this._totalContentSizeTransform = \"scale\" + axis + \"(\" + this._totalContentSize + \")\";\n this._markChangeDetectionNeeded();\n }\n };\n /** Sets the currently rendered range of indices. */\n /**\n * Sets the currently rendered range of indices.\n * @param {?} range\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.setRenderedRange = /**\n * Sets the currently rendered range of indices.\n * @param {?} range\n * @return {?}\n */\n function (range) {\n var _this = this;\n if (!rangesEqual(this._renderedRange, range)) {\n this._renderedRangeSubject.next(this._renderedRange = range);\n this._markChangeDetectionNeeded(function () { return _this._scrollStrategy.onContentRendered(); });\n }\n };\n /**\n * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n */\n /**\n * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.getOffsetToRenderedContentStart = /**\n * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n * @return {?}\n */\n function () {\n return this._renderedContentOffsetNeedsRewrite ? null : this._renderedContentOffset;\n };\n /**\n * Sets the offset from the start of the viewport to either the start or end of the rendered data\n * (in pixels).\n */\n /**\n * Sets the offset from the start of the viewport to either the start or end of the rendered data\n * (in pixels).\n * @param {?} offset\n * @param {?=} to\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.setRenderedContentOffset = /**\n * Sets the offset from the start of the viewport to either the start or end of the rendered data\n * (in pixels).\n * @param {?} offset\n * @param {?=} to\n * @return {?}\n */\n function (offset, to) {\n var _this = this;\n if (to === void 0) { to = 'to-start'; }\n // For a horizontal viewport in a right-to-left language we need to translate along the x-axis\n // in the negative direction.\n /** @type {?} */\n var isRtl = this.dir && this.dir.value == 'rtl';\n /** @type {?} */\n var isHorizontal = this.orientation == 'horizontal';\n /** @type {?} */\n var axis = isHorizontal ? 'X' : 'Y';\n /** @type {?} */\n var axisDirection = isHorizontal && isRtl ? -1 : 1;\n /** @type {?} */\n var transform = \"translate\" + axis + \"(\" + Number(axisDirection * offset) + \"px)\";\n this._renderedContentOffset = offset;\n if (to === 'to-end') {\n transform += \" translate\" + axis + \"(-100%)\";\n // The viewport should rewrite this as a `to-start` offset on the next render cycle. Otherwise\n // elements will appear to expand in the wrong direction (e.g. `mat-expansion-panel` would\n // expand upward).\n this._renderedContentOffsetNeedsRewrite = true;\n }\n if (this._renderedContentTransform != transform) {\n // We know this value is safe because we parse `offset` with `Number()` before passing it\n // into the string.\n this._renderedContentTransform = transform;\n this._markChangeDetectionNeeded(function () {\n if (_this._renderedContentOffsetNeedsRewrite) {\n _this._renderedContentOffset -= _this.measureRenderedContentSize();\n _this._renderedContentOffsetNeedsRewrite = false;\n _this.setRenderedContentOffset(_this._renderedContentOffset);\n }\n else {\n _this._scrollStrategy.onRenderedOffsetChanged();\n }\n });\n }\n };\n /**\n * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n * @param offset The offset to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n /**\n * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n * @param {?} offset The offset to scroll to.\n * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.scrollToOffset = /**\n * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n * @param {?} offset The offset to scroll to.\n * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n * @return {?}\n */\n function (offset, behavior) {\n if (behavior === void 0) { behavior = 'auto'; }\n /** @type {?} */\n var options = { behavior: behavior };\n if (this.orientation === 'horizontal') {\n options.start = offset;\n }\n else {\n options.top = offset;\n }\n this.scrollTo(options);\n };\n /**\n * Scrolls to the offset for the given index.\n * @param index The index of the element to scroll to.\n * @param behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n */\n /**\n * Scrolls to the offset for the given index.\n * @param {?} index The index of the element to scroll to.\n * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.scrollToIndex = /**\n * Scrolls to the offset for the given index.\n * @param {?} index The index of the element to scroll to.\n * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n * @return {?}\n */\n function (index, behavior) {\n if (behavior === void 0) { behavior = 'auto'; }\n this._scrollStrategy.scrollToIndex(index, behavior);\n };\n /**\n * Gets the current scroll offset from the start of the viewport (in pixels).\n * @param from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n * in horizontal mode.\n */\n /**\n * Gets the current scroll offset from the start of the viewport (in pixels).\n * @param {?=} from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n * in horizontal mode.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.measureScrollOffset = /**\n * Gets the current scroll offset from the start of the viewport (in pixels).\n * @param {?=} from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n * in horizontal mode.\n * @return {?}\n */\n function (from) {\n return _super.prototype.measureScrollOffset.call(this, from ? from : this.orientation === 'horizontal' ? 'start' : 'top');\n };\n /** Measure the combined size of all of the rendered items. */\n /**\n * Measure the combined size of all of the rendered items.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.measureRenderedContentSize = /**\n * Measure the combined size of all of the rendered items.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var contentEl = this._contentWrapper.nativeElement;\n return this.orientation === 'horizontal' ? contentEl.offsetWidth : contentEl.offsetHeight;\n };\n /**\n * Measure the total combined size of the given range. Throws if the range includes items that are\n * not rendered.\n */\n /**\n * Measure the total combined size of the given range. Throws if the range includes items that are\n * not rendered.\n * @param {?} range\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.measureRangeSize = /**\n * Measure the total combined size of the given range. Throws if the range includes items that are\n * not rendered.\n * @param {?} range\n * @return {?}\n */\n function (range) {\n if (!this._forOf) {\n return 0;\n }\n return this._forOf.measureRangeSize(range, this.orientation);\n };\n /** Update the viewport dimensions and re-render. */\n /**\n * Update the viewport dimensions and re-render.\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype.checkViewportSize = /**\n * Update the viewport dimensions and re-render.\n * @return {?}\n */\n function () {\n // TODO: Cleanup later when add logic for handling content resize\n this._measureViewportSize();\n this._scrollStrategy.onDataLengthChanged();\n };\n /** Measure the viewport size. */\n /**\n * Measure the viewport size.\n * @private\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype._measureViewportSize = /**\n * Measure the viewport size.\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var viewportEl = this.elementRef.nativeElement;\n this._viewportSize = this.orientation === 'horizontal' ?\n viewportEl.clientWidth : viewportEl.clientHeight;\n };\n /** Queue up change detection to run. */\n /**\n * Queue up change detection to run.\n * @private\n * @param {?=} runAfter\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype._markChangeDetectionNeeded = /**\n * Queue up change detection to run.\n * @private\n * @param {?=} runAfter\n * @return {?}\n */\n function (runAfter) {\n var _this = this;\n if (runAfter) {\n this._runAfterChangeDetection.push(runAfter);\n }\n // Use a Promise to batch together calls to `_doChangeDetection`. This way if we set a bunch of\n // properties sequentially we only have to run `_doChangeDetection` once at the end.\n if (!this._isChangeDetectionPending) {\n this._isChangeDetectionPending = true;\n this.ngZone.runOutsideAngular(function () { return Promise.resolve().then(function () {\n _this._doChangeDetection();\n }); });\n }\n };\n /** Run change detection. */\n /**\n * Run change detection.\n * @private\n * @return {?}\n */\n CdkVirtualScrollViewport.prototype._doChangeDetection = /**\n * Run change detection.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n this._isChangeDetectionPending = false;\n // Apply changes to Angular bindings. Note: We must call `markForCheck` to run change detection\n // from the root, since the repeated items are content projected in. Calling `detectChanges`\n // instead does not properly check the projected content.\n this.ngZone.run(function () { return _this._changeDetectorRef.markForCheck(); });\n // Apply the content transform. The transform can't be set via an Angular binding because\n // bypassSecurityTrustStyle is banned in Google. However the value is safe, it's composed of\n // string literals, a variable that can only be 'X' or 'Y', and user input that is run through\n // the `Number` function first to coerce it to a numeric value.\n this._contentWrapper.nativeElement.style.transform = this._renderedContentTransform;\n /** @type {?} */\n var runAfterChangeDetection = this._runAfterChangeDetection;\n this._runAfterChangeDetection = [];\n for (var _i = 0, runAfterChangeDetection_1 = runAfterChangeDetection; _i < runAfterChangeDetection_1.length; _i++) {\n var fn = runAfterChangeDetection_1[_i];\n fn();\n }\n };\n CdkVirtualScrollViewport.decorators = [\n { type: Component, args: [{selector: 'cdk-virtual-scroll-viewport',\n template: \"

\",\n styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:0}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:0}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\"],\n host: {\n 'class': 'cdk-virtual-scroll-viewport',\n '[class.cdk-virtual-scroll-orientation-horizontal]': 'orientation === \"horizontal\"',\n '[class.cdk-virtual-scroll-orientation-vertical]': 'orientation !== \"horizontal\"',\n },\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n providers: [{\n provide: CdkScrollable,\n useExisting: CdkVirtualScrollViewport,\n }]\n },] },\n ];\n /** @nocollapse */\n CdkVirtualScrollViewport.ctorParameters = function () { return [\n { type: ElementRef },\n { type: ChangeDetectorRef },\n { type: NgZone },\n { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [VIRTUAL_SCROLL_STRATEGY,] }] },\n { type: Directionality, decorators: [{ type: Optional }] },\n { type: ScrollDispatcher }\n ]; };\n CdkVirtualScrollViewport.propDecorators = {\n orientation: [{ type: Input }],\n scrolledIndexChange: [{ type: Output }],\n _contentWrapper: [{ type: ViewChild, args: ['contentWrapper',] }]\n };\n return CdkVirtualScrollViewport;\n}(CdkScrollable));\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Helper to extract size from a DOM Node.\n * @param {?} orientation\n * @param {?} node\n * @return {?}\n */\nfunction getSize(orientation, node) {\n /** @type {?} */\n var el = (/** @type {?} */ (node));\n if (!el.getBoundingClientRect) {\n return 0;\n }\n /** @type {?} */\n var rect = el.getBoundingClientRect();\n return orientation == 'horizontal' ? rect.width : rect.height;\n}\n/**\n * A directive similar to `ngForOf` to be used for rendering data inside a virtual scrolling\n * container.\n * @template T\n */\nvar CdkVirtualForOf = /** @class */ (function () {\n function CdkVirtualForOf(_viewContainerRef, _template, _differs, _viewport, ngZone) {\n var _this = this;\n this._viewContainerRef = _viewContainerRef;\n this._template = _template;\n this._differs = _differs;\n this._viewport = _viewport;\n /**\n * Emits when the rendered view of the data changes.\n */\n this.viewChange = new Subject();\n /**\n * Subject that emits when a new DataSource instance is given.\n */\n this._dataSourceChanges = new Subject();\n /**\n * The size of the cache used to store templates that are not being used for re-use later.\n * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n */\n this.cdkVirtualForTemplateCacheSize = 20;\n /**\n * Emits whenever the data in the current DataSource changes.\n */\n this.dataStream = this._dataSourceChanges\n .pipe(\n // Start off with null `DataSource`.\n startWith((/** @type {?} */ (null))), \n // Bundle up the previous and current data sources so we can work with both.\n pairwise(), \n // Use `_changeDataSource` to disconnect from the previous data source and connect to the\n // new one, passing back a stream of data changes which we run through `switchMap` to give\n // us a data stream that emits the latest data from whatever the current `DataSource` is.\n switchMap(function (_a) {\n var prev = _a[0], cur = _a[1];\n return _this._changeDataSource(prev, cur);\n }), \n // Replay the last emitted data when someone subscribes.\n shareReplay(1));\n /**\n * The differ used to calculate changes to the data.\n */\n this._differ = null;\n /**\n * The template cache used to hold on ot template instancess that have been stamped out, but don't\n * currently need to be rendered. These instances will be reused in the future rather than\n * stamping out brand new ones.\n */\n this._templateCache = [];\n /**\n * Whether the rendered data should be updated during the next ngDoCheck cycle.\n */\n this._needsUpdate = false;\n this._destroyed = new Subject();\n this.dataStream.subscribe(function (data) {\n _this._data = data;\n _this._onRenderedDataChange();\n });\n this._viewport.renderedRangeStream.pipe(takeUntil(this._destroyed)).subscribe(function (range) {\n _this._renderedRange = range;\n ngZone.run(function () { return _this.viewChange.next(_this._renderedRange); });\n _this._onRenderedDataChange();\n });\n this._viewport.attach(this);\n }\n Object.defineProperty(CdkVirtualForOf.prototype, \"cdkVirtualForOf\", {\n /** The DataSource to display. */\n get: /**\n * The DataSource to display.\n * @return {?}\n */\n function () {\n return this._cdkVirtualForOf;\n },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._cdkVirtualForOf = value;\n /** @type {?} */\n var ds = value instanceof DataSource ? value :\n // Slice the value if its an NgIterable to ensure we're working with an array.\n new ArrayDataSource(value instanceof Observable ? value : Array.prototype.slice.call(value || []));\n this._dataSourceChanges.next(ds);\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkVirtualForOf.prototype, \"cdkVirtualForTrackBy\", {\n /**\n * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n * the item and produces a value to be used as the item's identity when tracking changes.\n */\n get: /**\n * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n * the item and produces a value to be used as the item's identity when tracking changes.\n * @return {?}\n */\n function () {\n return this._cdkVirtualForTrackBy;\n },\n set: /**\n * @param {?} fn\n * @return {?}\n */\n function (fn) {\n var _this = this;\n this._needsUpdate = true;\n this._cdkVirtualForTrackBy = fn ?\n function (index, item) { return fn(index + (_this._renderedRange ? _this._renderedRange.start : 0), item); } :\n undefined;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkVirtualForOf.prototype, \"cdkVirtualForTemplate\", {\n /** The template used to stamp out new elements. */\n set: /**\n * The template used to stamp out new elements.\n * @param {?} value\n * @return {?}\n */\n function (value) {\n if (value) {\n this._needsUpdate = true;\n this._template = value;\n }\n },\n enumerable: true,\n configurable: true\n });\n /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n */\n /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n * @param {?} range\n * @param {?} orientation\n * @return {?}\n */\n CdkVirtualForOf.prototype.measureRangeSize = /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n * @param {?} range\n * @param {?} orientation\n * @return {?}\n */\n function (range, orientation) {\n if (range.start >= range.end) {\n return 0;\n }\n if (range.start < this._renderedRange.start || range.end > this._renderedRange.end) {\n throw Error(\"Error: attempted to measure an item that isn't rendered.\");\n }\n // The index into the list of rendered views for the first item in the range.\n /** @type {?} */\n var renderedStartIndex = range.start - this._renderedRange.start;\n // The length of the range we're measuring.\n /** @type {?} */\n var rangeLen = range.end - range.start;\n // Loop over all root nodes for all items in the range and sum up their size.\n /** @type {?} */\n var totalSize = 0;\n /** @type {?} */\n var i = rangeLen;\n while (i--) {\n /** @type {?} */\n var view = (/** @type {?} */ (this._viewContainerRef.get(i + renderedStartIndex)));\n /** @type {?} */\n var j = view ? view.rootNodes.length : 0;\n while (j--) {\n totalSize += getSize(orientation, (/** @type {?} */ (view)).rootNodes[j]);\n }\n }\n return totalSize;\n };\n /**\n * @return {?}\n */\n CdkVirtualForOf.prototype.ngDoCheck = /**\n * @return {?}\n */\n function () {\n if (this._differ && this._needsUpdate) {\n // TODO(mmalerba): We should differentiate needs update due to scrolling and a new portion of\n // this list being rendered (can use simpler algorithm) vs needs update due to data actually\n // changing (need to do this diff).\n /** @type {?} */\n var changes = this._differ.diff(this._renderedItems);\n if (!changes) {\n this._updateContext();\n }\n else {\n this._applyChanges(changes);\n }\n this._needsUpdate = false;\n }\n };\n /**\n * @return {?}\n */\n CdkVirtualForOf.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._viewport.detach();\n this._dataSourceChanges.complete();\n this.viewChange.complete();\n this._destroyed.next();\n this._destroyed.complete();\n for (var _i = 0, _a = this._templateCache; _i < _a.length; _i++) {\n var view = _a[_i];\n view.destroy();\n }\n };\n /** React to scroll state changes in the viewport. */\n /**\n * React to scroll state changes in the viewport.\n * @private\n * @return {?}\n */\n CdkVirtualForOf.prototype._onRenderedDataChange = /**\n * React to scroll state changes in the viewport.\n * @private\n * @return {?}\n */\n function () {\n if (!this._renderedRange) {\n return;\n }\n this._renderedItems = this._data.slice(this._renderedRange.start, this._renderedRange.end);\n if (!this._differ) {\n this._differ = this._differs.find(this._renderedItems).create(this.cdkVirtualForTrackBy);\n }\n this._needsUpdate = true;\n };\n /** Swap out one `DataSource` for another. */\n /**\n * Swap out one `DataSource` for another.\n * @private\n * @param {?} oldDs\n * @param {?} newDs\n * @return {?}\n */\n CdkVirtualForOf.prototype._changeDataSource = /**\n * Swap out one `DataSource` for another.\n * @private\n * @param {?} oldDs\n * @param {?} newDs\n * @return {?}\n */\n function (oldDs, newDs) {\n if (oldDs) {\n oldDs.disconnect(this);\n }\n this._needsUpdate = true;\n return newDs.connect(this);\n };\n /** Update the `CdkVirtualForOfContext` for all views. */\n /**\n * Update the `CdkVirtualForOfContext` for all views.\n * @private\n * @return {?}\n */\n CdkVirtualForOf.prototype._updateContext = /**\n * Update the `CdkVirtualForOfContext` for all views.\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var count = this._data.length;\n /** @type {?} */\n var i = this._viewContainerRef.length;\n while (i--) {\n /** @type {?} */\n var view = (/** @type {?} */ (this._viewContainerRef.get(i)));\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n view.detectChanges();\n }\n };\n /** Apply changes to the DOM. */\n /**\n * Apply changes to the DOM.\n * @private\n * @param {?} changes\n * @return {?}\n */\n CdkVirtualForOf.prototype._applyChanges = /**\n * Apply changes to the DOM.\n * @private\n * @param {?} changes\n * @return {?}\n */\n function (changes) {\n var _this = this;\n // Rearrange the views to put them in the right location.\n changes.forEachOperation(function (record, adjustedPreviousIndex, currentIndex) {\n if (record.previousIndex == null) { // Item added.\n // Item added.\n /** @type {?} */\n var view = _this._getViewForNewItem();\n _this._viewContainerRef.insert(view, (/** @type {?} */ (currentIndex)));\n view.context.$implicit = record.item;\n }\n else if (currentIndex == null) { // Item removed.\n _this._cacheView((/** @type {?} */ (_this._viewContainerRef.detach((/** @type {?} */ (adjustedPreviousIndex))))));\n }\n else { // Item moved.\n // Item moved.\n /** @type {?} */\n var view = (/** @type {?} */ (_this._viewContainerRef.get((/** @type {?} */ (adjustedPreviousIndex)))));\n _this._viewContainerRef.move(view, currentIndex);\n view.context.$implicit = record.item;\n }\n });\n // Update $implicit for any items that had an identity change.\n changes.forEachIdentityChange(function (record) {\n /** @type {?} */\n var view = (/** @type {?} */ (_this._viewContainerRef.get((/** @type {?} */ (record.currentIndex)))));\n view.context.$implicit = record.item;\n });\n // Update the context variables on all items.\n /** @type {?} */\n var count = this._data.length;\n /** @type {?} */\n var i = this._viewContainerRef.length;\n while (i--) {\n /** @type {?} */\n var view = (/** @type {?} */ (this._viewContainerRef.get(i)));\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n }\n };\n /** Cache the given detached view. */\n /**\n * Cache the given detached view.\n * @private\n * @param {?} view\n * @return {?}\n */\n CdkVirtualForOf.prototype._cacheView = /**\n * Cache the given detached view.\n * @private\n * @param {?} view\n * @return {?}\n */\n function (view) {\n if (this._templateCache.length < this.cdkVirtualForTemplateCacheSize) {\n this._templateCache.push(view);\n }\n else {\n /** @type {?} */\n var index = this._viewContainerRef.indexOf(view);\n // It's very unlikely that the index will ever be -1, but just in case,\n // destroy the view on its own, otherwise destroy it through the\n // container to ensure that all the references are removed.\n if (index === -1) {\n view.destroy();\n }\n else {\n this._viewContainerRef.remove(index);\n }\n }\n };\n /** Get a view for a new item, either from the cache or by creating a new one. */\n /**\n * Get a view for a new item, either from the cache or by creating a new one.\n * @private\n * @return {?}\n */\n CdkVirtualForOf.prototype._getViewForNewItem = /**\n * Get a view for a new item, either from the cache or by creating a new one.\n * @private\n * @return {?}\n */\n function () {\n return this._templateCache.pop() || this._viewContainerRef.createEmbeddedView(this._template, {\n $implicit: (/** @type {?} */ (null)),\n cdkVirtualForOf: this._cdkVirtualForOf,\n index: -1,\n count: -1,\n first: false,\n last: false,\n odd: false,\n even: false\n });\n };\n /** Update the computed properties on the `CdkVirtualForOfContext`. */\n /**\n * Update the computed properties on the `CdkVirtualForOfContext`.\n * @private\n * @param {?} context\n * @return {?}\n */\n CdkVirtualForOf.prototype._updateComputedContextProperties = /**\n * Update the computed properties on the `CdkVirtualForOfContext`.\n * @private\n * @param {?} context\n * @return {?}\n */\n function (context) {\n context.first = context.index === 0;\n context.last = context.index === context.count - 1;\n context.even = context.index % 2 === 0;\n context.odd = !context.even;\n };\n CdkVirtualForOf.decorators = [\n { type: Directive, args: [{\n selector: '[cdkVirtualFor][cdkVirtualForOf]',\n },] },\n ];\n /** @nocollapse */\n CdkVirtualForOf.ctorParameters = function () { return [\n { type: ViewContainerRef },\n { type: TemplateRef },\n { type: IterableDiffers },\n { type: CdkVirtualScrollViewport, decorators: [{ type: SkipSelf }] },\n { type: NgZone }\n ]; };\n CdkVirtualForOf.propDecorators = {\n cdkVirtualForOf: [{ type: Input }],\n cdkVirtualForTrackBy: [{ type: Input }],\n cdkVirtualForTemplate: [{ type: Input }],\n cdkVirtualForTemplateCacheSize: [{ type: Input }]\n };\n return CdkVirtualForOf;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nvar ScrollingModule = /** @class */ (function () {\n function ScrollingModule() {\n }\n ScrollingModule.decorators = [\n { type: NgModule, args: [{\n imports: [BidiModule, PlatformModule],\n exports: [\n BidiModule,\n CdkFixedSizeVirtualScroll,\n CdkScrollable,\n CdkVirtualForOf,\n CdkVirtualScrollViewport,\n ],\n declarations: [\n CdkFixedSizeVirtualScroll,\n CdkScrollable,\n CdkVirtualForOf,\n CdkVirtualScrollViewport,\n ],\n },] },\n ];\n return ScrollingModule;\n}());\n/**\n * @deprecated ScrollDispatchModule has been renamed to ScrollingModule.\n * \\@breaking-change 8.0.0 delete this alias\n */\nvar ScrollDispatchModule = /** @class */ (function () {\n function ScrollDispatchModule() {\n }\n ScrollDispatchModule.decorators = [\n { type: NgModule, args: [{\n imports: [ScrollingModule],\n exports: [ScrollingModule],\n },] },\n ];\n return ScrollDispatchModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Time in ms to throttle the resize events by default.\n * @type {?}\n */\nvar DEFAULT_RESIZE_TIME = 20;\n/**\n * Simple utility for getting the bounds of the browser viewport.\n * \\@docs-private\n */\nvar ViewportRuler = /** @class */ (function () {\n function ViewportRuler(_platform, ngZone) {\n var _this = this;\n this._platform = _platform;\n ngZone.runOutsideAngular(function () {\n _this._change = _platform.isBrowser ?\n merge(fromEvent(window, 'resize'), fromEvent(window, 'orientationchange')) :\n of();\n // Note that we need to do the subscription inside `runOutsideAngular`\n // since subscribing is what causes the event listener to be added.\n _this._invalidateCache = _this.change().subscribe(function () { return _this._updateViewportSize(); });\n });\n }\n /**\n * @return {?}\n */\n ViewportRuler.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._invalidateCache.unsubscribe();\n };\n /** Returns the viewport's width and height. */\n /**\n * Returns the viewport's width and height.\n * @return {?}\n */\n ViewportRuler.prototype.getViewportSize = /**\n * Returns the viewport's width and height.\n * @return {?}\n */\n function () {\n if (!this._viewportSize) {\n this._updateViewportSize();\n }\n /** @type {?} */\n var output = { width: this._viewportSize.width, height: this._viewportSize.height };\n // If we're not on a browser, don't cache the size since it'll be mocked out anyway.\n if (!this._platform.isBrowser) {\n this._viewportSize = (/** @type {?} */ (null));\n }\n return output;\n };\n /** Gets a ClientRect for the viewport's bounds. */\n /**\n * Gets a ClientRect for the viewport's bounds.\n * @return {?}\n */\n ViewportRuler.prototype.getViewportRect = /**\n * Gets a ClientRect for the viewport's bounds.\n * @return {?}\n */\n function () {\n // Use the document element's bounding rect rather than the window scroll properties\n // (e.g. pageYOffset, scrollY) due to in issue in Chrome and IE where window scroll\n // properties and client coordinates (boundingClientRect, clientX/Y, etc.) are in different\n // conceptual viewports. Under most circumstances these viewports are equivalent, but they\n // can disagree when the page is pinch-zoomed (on devices that support touch).\n // See https://bugs.chromium.org/p/chromium/issues/detail?id=489206#c4\n // We use the documentElement instead of the body because, by default (without a css reset)\n // browsers typically give the document body an 8px margin, which is not included in\n // getBoundingClientRect().\n /** @type {?} */\n var scrollPosition = this.getViewportScrollPosition();\n var _a = this.getViewportSize(), width = _a.width, height = _a.height;\n return {\n top: scrollPosition.top,\n left: scrollPosition.left,\n bottom: scrollPosition.top + height,\n right: scrollPosition.left + width,\n height: height,\n width: width,\n };\n };\n /** Gets the (top, left) scroll position of the viewport. */\n /**\n * Gets the (top, left) scroll position of the viewport.\n * @return {?}\n */\n ViewportRuler.prototype.getViewportScrollPosition = /**\n * Gets the (top, left) scroll position of the viewport.\n * @return {?}\n */\n function () {\n // While we can get a reference to the fake document\n // during SSR, it doesn't have getBoundingClientRect.\n if (!this._platform.isBrowser) {\n return { top: 0, left: 0 };\n }\n // The top-left-corner of the viewport is determined by the scroll position of the document\n // body, normally just (scrollLeft, scrollTop). However, Chrome and Firefox disagree about\n // whether `document.body` or `document.documentElement` is the scrolled element, so reading\n // `scrollTop` and `scrollLeft` is inconsistent. However, using the bounding rect of\n // `document.documentElement` works consistently, where the `top` and `left` values will\n // equal negative the scroll position.\n /** @type {?} */\n var documentElement = (/** @type {?} */ (document.documentElement));\n /** @type {?} */\n var documentRect = documentElement.getBoundingClientRect();\n /** @type {?} */\n var top = -documentRect.top || document.body.scrollTop || window.scrollY ||\n documentElement.scrollTop || 0;\n /** @type {?} */\n var left = -documentRect.left || document.body.scrollLeft || window.scrollX ||\n documentElement.scrollLeft || 0;\n return { top: top, left: left };\n };\n /**\n * Returns a stream that emits whenever the size of the viewport changes.\n * @param throttleTime Time in milliseconds to throttle the stream.\n */\n /**\n * Returns a stream that emits whenever the size of the viewport changes.\n * @param {?=} throttleTime Time in milliseconds to throttle the stream.\n * @return {?}\n */\n ViewportRuler.prototype.change = /**\n * Returns a stream that emits whenever the size of the viewport changes.\n * @param {?=} throttleTime Time in milliseconds to throttle the stream.\n * @return {?}\n */\n function (throttleTime) {\n if (throttleTime === void 0) { throttleTime = DEFAULT_RESIZE_TIME; }\n return throttleTime > 0 ? this._change.pipe(auditTime(throttleTime)) : this._change;\n };\n /** Updates the cached viewport size. */\n /**\n * Updates the cached viewport size.\n * @private\n * @return {?}\n */\n ViewportRuler.prototype._updateViewportSize = /**\n * Updates the cached viewport size.\n * @private\n * @return {?}\n */\n function () {\n this._viewportSize = this._platform.isBrowser ?\n { width: window.innerWidth, height: window.innerHeight } :\n { width: 0, height: 0 };\n };\n ViewportRuler.decorators = [\n { type: Injectable, args: [{ providedIn: 'root' },] },\n ];\n /** @nocollapse */\n ViewportRuler.ctorParameters = function () { return [\n { type: Platform },\n { type: NgZone }\n ]; };\n /** @nocollapse */ ViewportRuler.ngInjectableDef = defineInjectable({ factory: function ViewportRuler_Factory() { return new ViewportRuler(inject(Platform), inject(NgZone)); }, token: ViewportRuler, providedIn: \"root\" });\n return ViewportRuler;\n}());\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @param {?} parentRuler\n * @param {?} platform\n * @param {?} ngZone\n * @return {?}\n */\nfunction VIEWPORT_RULER_PROVIDER_FACTORY(parentRuler, platform, ngZone) {\n return parentRuler || new ViewportRuler(platform, ngZone);\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @type {?}\n */\nvar VIEWPORT_RULER_PROVIDER = {\n // If there is already a ViewportRuler available, use that. Otherwise, provide a new one.\n provide: ViewportRuler,\n deps: [[new Optional(), new SkipSelf(), ViewportRuler], Platform, NgZone],\n useFactory: VIEWPORT_RULER_PROVIDER_FACTORY\n};\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { _fixedSizeVirtualScrollStrategyFactory, FixedSizeVirtualScrollStrategy, CdkFixedSizeVirtualScroll, SCROLL_DISPATCHER_PROVIDER_FACTORY, DEFAULT_SCROLL_TIME, ScrollDispatcher, SCROLL_DISPATCHER_PROVIDER, CdkScrollable, ScrollingModule, ScrollDispatchModule, VIEWPORT_RULER_PROVIDER_FACTORY, DEFAULT_RESIZE_TIME, ViewportRuler, VIEWPORT_RULER_PROVIDER, CdkVirtualForOf, VIRTUAL_SCROLL_STRATEGY, CdkVirtualScrollViewport };\n//# sourceMappingURL=scrolling.es5.js.map\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Directive, TemplateRef, ElementRef, ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChild, ContentChildren, EventEmitter, forwardRef, Inject, Input, Optional, Output, ViewChild, ViewEncapsulation, InjectionToken, NgModule } from '@angular/core';\nimport { FocusKeyManager } from '@angular/cdk/a11y';\nimport { Directionality, BidiModule } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { END, ENTER, HOME, SPACE, hasModifierKey } from '@angular/cdk/keycodes';\nimport { DOCUMENT, CommonModule } from '@angular/common';\nimport '@angular/forms';\nimport { Subject, of } from 'rxjs';\nimport { startWith, takeUntil } from 'rxjs/operators';\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nvar CdkStepLabel = /** @class */ (function () {\n function CdkStepLabel(/** @docs-private */ template) {\n this.template = template;\n }\n CdkStepLabel.decorators = [\n { type: Directive, args: [{\n selector: '[cdkStepLabel]',\n },] },\n ];\n /** @nocollapse */\n CdkStepLabel.ctorParameters = function () { return [\n { type: TemplateRef }\n ]; };\n return CdkStepLabel;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nvar CdkStepHeader = /** @class */ (function () {\n function CdkStepHeader(_elementRef) {\n this._elementRef = _elementRef;\n }\n /** Focuses the step header. */\n /**\n * Focuses the step header.\n * @return {?}\n */\n CdkStepHeader.prototype.focus = /**\n * Focuses the step header.\n * @return {?}\n */\n function () {\n this._elementRef.nativeElement.focus();\n };\n CdkStepHeader.decorators = [\n { type: Directive, args: [{\n selector: '[cdkStepHeader]',\n host: {\n 'role': 'tab',\n },\n },] },\n ];\n /** @nocollapse */\n CdkStepHeader.ctorParameters = function () { return [\n { type: ElementRef }\n ]; };\n return CdkStepHeader;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Used to generate unique ID for each stepper component.\n * @type {?}\n */\nvar nextId = 0;\n/**\n * Change event emitted on selection changes.\n */\nvar /**\n * Change event emitted on selection changes.\n */\nStepperSelectionEvent = /** @class */ (function () {\n function StepperSelectionEvent() {\n }\n return StepperSelectionEvent;\n}());\n/**\n * Enum to represent the different states of the steps.\n * @type {?}\n */\nvar STEP_STATE = {\n NUMBER: 'number',\n EDIT: 'edit',\n DONE: 'done',\n ERROR: 'error'\n};\n/**\n * InjectionToken that can be used to specify the global stepper options.\n * @type {?}\n */\nvar STEPPER_GLOBAL_OPTIONS = new InjectionToken('STEPPER_GLOBAL_OPTIONS');\n/**\n * InjectionToken that can be used to specify the global stepper options.\n * @deprecated Use `STEPPER_GLOBAL_OPTIONS` instead.\n * \\@breaking-change 8.0.0.\n * @type {?}\n */\nvar MAT_STEPPER_GLOBAL_OPTIONS = STEPPER_GLOBAL_OPTIONS;\nvar CdkStep = /** @class */ (function () {\n /** @breaking-change 8.0.0 remove the `?` after `stepperOptions` */\n function CdkStep(_stepper, stepperOptions) {\n this._stepper = _stepper;\n /**\n * Whether user has seen the expanded step content or not.\n */\n this.interacted = false;\n this._editable = true;\n this._optional = false;\n this._customCompleted = null;\n this._customError = null;\n this._stepperOptions = stepperOptions ? stepperOptions : {};\n this._displayDefaultIndicatorType = this._stepperOptions.displayDefaultIndicatorType !== false;\n this._showError = !!this._stepperOptions.showError;\n }\n Object.defineProperty(CdkStep.prototype, \"editable\", {\n /** Whether the user can return to this step once it has been marked as complted. */\n get: /**\n * Whether the user can return to this step once it has been marked as complted.\n * @return {?}\n */\n function () { return this._editable; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._editable = coerceBooleanProperty(value);\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkStep.prototype, \"optional\", {\n /** Whether the completion of step is optional. */\n get: /**\n * Whether the completion of step is optional.\n * @return {?}\n */\n function () { return this._optional; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._optional = coerceBooleanProperty(value);\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkStep.prototype, \"completed\", {\n /** Whether step is marked as completed. */\n get: /**\n * Whether step is marked as completed.\n * @return {?}\n */\n function () {\n return this._customCompleted == null ? this._getDefaultCompleted() : this._customCompleted;\n },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._customCompleted = coerceBooleanProperty(value);\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @private\n * @return {?}\n */\n CdkStep.prototype._getDefaultCompleted = /**\n * @private\n * @return {?}\n */\n function () {\n return this.stepControl ? this.stepControl.valid && this.interacted : this.interacted;\n };\n Object.defineProperty(CdkStep.prototype, \"hasError\", {\n /** Whether step has an error. */\n get: /**\n * Whether step has an error.\n * @return {?}\n */\n function () {\n return this._customError == null ? this._getDefaultError() : this._customError;\n },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._customError = coerceBooleanProperty(value);\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @private\n * @return {?}\n */\n CdkStep.prototype._getDefaultError = /**\n * @private\n * @return {?}\n */\n function () {\n return this.stepControl && this.stepControl.invalid && this.interacted;\n };\n /** Selects this step component. */\n /**\n * Selects this step component.\n * @return {?}\n */\n CdkStep.prototype.select = /**\n * Selects this step component.\n * @return {?}\n */\n function () {\n this._stepper.selected = this;\n };\n /** Resets the step to its initial state. Note that this includes resetting form data. */\n /**\n * Resets the step to its initial state. Note that this includes resetting form data.\n * @return {?}\n */\n CdkStep.prototype.reset = /**\n * Resets the step to its initial state. Note that this includes resetting form data.\n * @return {?}\n */\n function () {\n this.interacted = false;\n if (this._customCompleted != null) {\n this._customCompleted = false;\n }\n if (this._customError != null) {\n this._customError = false;\n }\n if (this.stepControl) {\n this.stepControl.reset();\n }\n };\n /**\n * @return {?}\n */\n CdkStep.prototype.ngOnChanges = /**\n * @return {?}\n */\n function () {\n // Since basically all inputs of the MatStep get proxied through the view down to the\n // underlying MatStepHeader, we have to make sure that change detection runs correctly.\n this._stepper._stateChanged();\n };\n CdkStep.decorators = [\n { type: Component, args: [{selector: 'cdk-step',\n exportAs: 'cdkStep',\n template: '

',\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n },] },\n ];\n /** @nocollapse */\n CdkStep.ctorParameters = function () { return [\n { type: CdkStepper, decorators: [{ type: Inject, args: [forwardRef(function () { return CdkStepper; }),] }] },\n { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [STEPPER_GLOBAL_OPTIONS,] }] }\n ]; };\n CdkStep.propDecorators = {\n stepLabel: [{ type: ContentChild, args: [CdkStepLabel,] }],\n content: [{ type: ViewChild, args: [TemplateRef,] }],\n stepControl: [{ type: Input }],\n label: [{ type: Input }],\n errorMessage: [{ type: Input }],\n ariaLabel: [{ type: Input, args: ['aria-label',] }],\n ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n state: [{ type: Input }],\n editable: [{ type: Input }],\n optional: [{ type: Input }],\n completed: [{ type: Input }],\n hasError: [{ type: Input }]\n };\n return CdkStep;\n}());\nvar CdkStepper = /** @class */ (function () {\n function CdkStepper(_dir, _changeDetectorRef, _elementRef, _document) {\n this._dir = _dir;\n this._changeDetectorRef = _changeDetectorRef;\n this._elementRef = _elementRef;\n /**\n * Emits when the component is destroyed.\n */\n this._destroyed = new Subject();\n this._linear = false;\n this._selectedIndex = 0;\n /**\n * Event emitted when the selected step has changed.\n */\n this.selectionChange = new EventEmitter();\n this._orientation = 'horizontal';\n this._groupId = nextId++;\n this._document = _document;\n }\n Object.defineProperty(CdkStepper.prototype, \"steps\", {\n /** The list of step components that the stepper is holding. */\n get: /**\n * The list of step components that the stepper is holding.\n * @return {?}\n */\n function () {\n return this._steps;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkStepper.prototype, \"linear\", {\n /** Whether the validity of previous steps should be checked or not. */\n get: /**\n * Whether the validity of previous steps should be checked or not.\n * @return {?}\n */\n function () { return this._linear; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) { this._linear = coerceBooleanProperty(value); },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkStepper.prototype, \"selectedIndex\", {\n /** The index of the selected step. */\n get: /**\n * The index of the selected step.\n * @return {?}\n */\n function () { return this._selectedIndex; },\n set: /**\n * @param {?} index\n * @return {?}\n */\n function (index) {\n if (this.steps) {\n // Ensure that the index can't be out of bounds.\n if (index < 0 || index > this.steps.length - 1) {\n throw Error('cdkStepper: Cannot assign out-of-bounds value to `selectedIndex`.');\n }\n if (this._selectedIndex != index &&\n !this._anyControlsInvalidOrPending(index) &&\n (index >= this._selectedIndex || this.steps.toArray()[index].editable)) {\n this._updateSelectedItemIndex(index);\n }\n }\n else {\n this._selectedIndex = index;\n }\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkStepper.prototype, \"selected\", {\n /** The step that is selected. */\n get: /**\n * The step that is selected.\n * @return {?}\n */\n function () {\n // @breaking-change 8.0.0 Change return type to `CdkStep | undefined`.\n return this.steps ? this.steps.toArray()[this.selectedIndex] : (/** @type {?} */ (undefined));\n },\n set: /**\n * @param {?} step\n * @return {?}\n */\n function (step) {\n this.selectedIndex = this.steps ? this.steps.toArray().indexOf(step) : -1;\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkStepper.prototype.ngAfterViewInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n // Note that while the step headers are content children by default, any components that\n // extend this one might have them as view chidren. We initialize the keyboard handling in\n // AfterViewInit so we're guaranteed for both view and content children to be defined.\n this._keyManager = new FocusKeyManager(this._stepHeader)\n .withWrap()\n .withVerticalOrientation(this._orientation === 'vertical');\n (this._dir ? (/** @type {?} */ (this._dir.change)) : of())\n .pipe(startWith(this._layoutDirection()), takeUntil(this._destroyed))\n .subscribe(function (direction) { return _this._keyManager.withHorizontalOrientation(direction); });\n this._keyManager.updateActiveItemIndex(this._selectedIndex);\n this.steps.changes.pipe(takeUntil(this._destroyed)).subscribe(function () {\n if (!_this.selected) {\n _this._selectedIndex = Math.max(_this._selectedIndex - 1, 0);\n }\n });\n };\n /**\n * @return {?}\n */\n CdkStepper.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._destroyed.next();\n this._destroyed.complete();\n };\n /** Selects and focuses the next step in list. */\n /**\n * Selects and focuses the next step in list.\n * @return {?}\n */\n CdkStepper.prototype.next = /**\n * Selects and focuses the next step in list.\n * @return {?}\n */\n function () {\n this.selectedIndex = Math.min(this._selectedIndex + 1, this.steps.length - 1);\n };\n /** Selects and focuses the previous step in list. */\n /**\n * Selects and focuses the previous step in list.\n * @return {?}\n */\n CdkStepper.prototype.previous = /**\n * Selects and focuses the previous step in list.\n * @return {?}\n */\n function () {\n this.selectedIndex = Math.max(this._selectedIndex - 1, 0);\n };\n /** Resets the stepper to its initial state. Note that this includes clearing form data. */\n /**\n * Resets the stepper to its initial state. Note that this includes clearing form data.\n * @return {?}\n */\n CdkStepper.prototype.reset = /**\n * Resets the stepper to its initial state. Note that this includes clearing form data.\n * @return {?}\n */\n function () {\n this._updateSelectedItemIndex(0);\n this.steps.forEach(function (step) { return step.reset(); });\n this._stateChanged();\n };\n /** Returns a unique id for each step label element. */\n /**\n * Returns a unique id for each step label element.\n * @param {?} i\n * @return {?}\n */\n CdkStepper.prototype._getStepLabelId = /**\n * Returns a unique id for each step label element.\n * @param {?} i\n * @return {?}\n */\n function (i) {\n return \"cdk-step-label-\" + this._groupId + \"-\" + i;\n };\n /** Returns unique id for each step content element. */\n /**\n * Returns unique id for each step content element.\n * @param {?} i\n * @return {?}\n */\n CdkStepper.prototype._getStepContentId = /**\n * Returns unique id for each step content element.\n * @param {?} i\n * @return {?}\n */\n function (i) {\n return \"cdk-step-content-\" + this._groupId + \"-\" + i;\n };\n /** Marks the component to be change detected. */\n /**\n * Marks the component to be change detected.\n * @return {?}\n */\n CdkStepper.prototype._stateChanged = /**\n * Marks the component to be change detected.\n * @return {?}\n */\n function () {\n this._changeDetectorRef.markForCheck();\n };\n /** Returns position state of the step with the given index. */\n /**\n * Returns position state of the step with the given index.\n * @param {?} index\n * @return {?}\n */\n CdkStepper.prototype._getAnimationDirection = /**\n * Returns position state of the step with the given index.\n * @param {?} index\n * @return {?}\n */\n function (index) {\n /** @type {?} */\n var position = index - this._selectedIndex;\n if (position < 0) {\n return this._layoutDirection() === 'rtl' ? 'next' : 'previous';\n }\n else if (position > 0) {\n return this._layoutDirection() === 'rtl' ? 'previous' : 'next';\n }\n return 'current';\n };\n /** Returns the type of icon to be displayed. */\n /**\n * Returns the type of icon to be displayed.\n * @param {?} index\n * @param {?=} state\n * @return {?}\n */\n CdkStepper.prototype._getIndicatorType = /**\n * Returns the type of icon to be displayed.\n * @param {?} index\n * @param {?=} state\n * @return {?}\n */\n function (index, state) {\n if (state === void 0) { state = STEP_STATE.NUMBER; }\n /** @type {?} */\n var step = this.steps.toArray()[index];\n /** @type {?} */\n var isCurrentStep = this._isCurrentStep(index);\n return step._displayDefaultIndicatorType\n ? this._getDefaultIndicatorLogic(step, isCurrentStep)\n : this._getGuidelineLogic(step, isCurrentStep, state);\n };\n /**\n * @private\n * @param {?} step\n * @param {?} isCurrentStep\n * @return {?}\n */\n CdkStepper.prototype._getDefaultIndicatorLogic = /**\n * @private\n * @param {?} step\n * @param {?} isCurrentStep\n * @return {?}\n */\n function (step, isCurrentStep) {\n if (step._showError && step.hasError && !isCurrentStep) {\n return STEP_STATE.ERROR;\n }\n else if (!step.completed || isCurrentStep) {\n return STEP_STATE.NUMBER;\n }\n else {\n return step.editable ? STEP_STATE.EDIT : STEP_STATE.DONE;\n }\n };\n /**\n * @private\n * @param {?} step\n * @param {?} isCurrentStep\n * @param {?=} state\n * @return {?}\n */\n CdkStepper.prototype._getGuidelineLogic = /**\n * @private\n * @param {?} step\n * @param {?} isCurrentStep\n * @param {?=} state\n * @return {?}\n */\n function (step, isCurrentStep, state) {\n if (state === void 0) { state = STEP_STATE.NUMBER; }\n if (step._showError && step.hasError && !isCurrentStep) {\n return STEP_STATE.ERROR;\n }\n else if (step.completed && !isCurrentStep) {\n return STEP_STATE.DONE;\n }\n else if (step.completed && isCurrentStep) {\n return state;\n }\n else if (step.editable && isCurrentStep) {\n return STEP_STATE.EDIT;\n }\n else {\n return state;\n }\n };\n /**\n * @private\n * @param {?} index\n * @return {?}\n */\n CdkStepper.prototype._isCurrentStep = /**\n * @private\n * @param {?} index\n * @return {?}\n */\n function (index) {\n return this._selectedIndex === index;\n };\n /** Returns the index of the currently-focused step header. */\n /**\n * Returns the index of the currently-focused step header.\n * @return {?}\n */\n CdkStepper.prototype._getFocusIndex = /**\n * Returns the index of the currently-focused step header.\n * @return {?}\n */\n function () {\n return this._keyManager ? this._keyManager.activeItemIndex : this._selectedIndex;\n };\n /**\n * @private\n * @param {?} newIndex\n * @return {?}\n */\n CdkStepper.prototype._updateSelectedItemIndex = /**\n * @private\n * @param {?} newIndex\n * @return {?}\n */\n function (newIndex) {\n /** @type {?} */\n var stepsArray = this.steps.toArray();\n this.selectionChange.emit({\n selectedIndex: newIndex,\n previouslySelectedIndex: this._selectedIndex,\n selectedStep: stepsArray[newIndex],\n previouslySelectedStep: stepsArray[this._selectedIndex],\n });\n // If focus is inside the stepper, move it to the next header, otherwise it may become\n // lost when the active step content is hidden. We can't be more granular with the check\n // (e.g. checking whether focus is inside the active step), because we don't have a\n // reference to the elements that are rendering out the content.\n this._containsFocus() ? this._keyManager.setActiveItem(newIndex) :\n this._keyManager.updateActiveItemIndex(newIndex);\n this._selectedIndex = newIndex;\n this._stateChanged();\n };\n /**\n * @param {?} event\n * @return {?}\n */\n CdkStepper.prototype._onKeydown = /**\n * @param {?} event\n * @return {?}\n */\n function (event) {\n /** @type {?} */\n var hasModifier = hasModifierKey(event);\n /** @type {?} */\n var keyCode = event.keyCode;\n /** @type {?} */\n var manager = this._keyManager;\n if (manager.activeItemIndex != null && !hasModifier &&\n (keyCode === SPACE || keyCode === ENTER)) {\n this.selectedIndex = manager.activeItemIndex;\n event.preventDefault();\n }\n else if (keyCode === HOME) {\n manager.setFirstItemActive();\n event.preventDefault();\n }\n else if (keyCode === END) {\n manager.setLastItemActive();\n event.preventDefault();\n }\n else {\n manager.onKeydown(event);\n }\n };\n /**\n * @private\n * @param {?} index\n * @return {?}\n */\n CdkStepper.prototype._anyControlsInvalidOrPending = /**\n * @private\n * @param {?} index\n * @return {?}\n */\n function (index) {\n /** @type {?} */\n var steps = this.steps.toArray();\n steps[this._selectedIndex].interacted = true;\n if (this._linear && index >= 0) {\n return steps.slice(0, index).some(function (step) {\n /** @type {?} */\n var control = step.stepControl;\n /** @type {?} */\n var isIncomplete = control ?\n (control.invalid || control.pending || !step.interacted) :\n !step.completed;\n return isIncomplete && !step.optional;\n });\n }\n return false;\n };\n /**\n * @private\n * @return {?}\n */\n CdkStepper.prototype._layoutDirection = /**\n * @private\n * @return {?}\n */\n function () {\n return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';\n };\n /** Checks whether the stepper contains the focused element. */\n /**\n * Checks whether the stepper contains the focused element.\n * @private\n * @return {?}\n */\n CdkStepper.prototype._containsFocus = /**\n * Checks whether the stepper contains the focused element.\n * @private\n * @return {?}\n */\n function () {\n if (!this._document || !this._elementRef) {\n return false;\n }\n /** @type {?} */\n var stepperElement = this._elementRef.nativeElement;\n /** @type {?} */\n var focusedElement = this._document.activeElement;\n return stepperElement === focusedElement || stepperElement.contains(focusedElement);\n };\n CdkStepper.decorators = [\n { type: Directive, args: [{\n selector: '[cdkStepper]',\n exportAs: 'cdkStepper',\n },] },\n ];\n /** @nocollapse */\n CdkStepper.ctorParameters = function () { return [\n { type: Directionality, decorators: [{ type: Optional }] },\n { type: ChangeDetectorRef },\n { type: ElementRef },\n { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n ]; };\n CdkStepper.propDecorators = {\n _steps: [{ type: ContentChildren, args: [CdkStep,] }],\n _stepHeader: [{ type: ContentChildren, args: [CdkStepHeader,] }],\n linear: [{ type: Input }],\n selectedIndex: [{ type: Input }],\n selected: [{ type: Input }],\n selectionChange: [{ type: Output }]\n };\n return CdkStepper;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Button that moves to the next step in a stepper workflow.\n */\nvar CdkStepperNext = /** @class */ (function () {\n function CdkStepperNext(_stepper) {\n this._stepper = _stepper;\n /**\n * Type of the next button. Defaults to \"submit\" if not specified.\n */\n this.type = 'submit';\n }\n CdkStepperNext.decorators = [\n { type: Directive, args: [{\n selector: 'button[cdkStepperNext]',\n host: {\n '(click)': '_stepper.next()',\n '[type]': 'type',\n }\n },] },\n ];\n /** @nocollapse */\n CdkStepperNext.ctorParameters = function () { return [\n { type: CdkStepper }\n ]; };\n CdkStepperNext.propDecorators = {\n type: [{ type: Input }]\n };\n return CdkStepperNext;\n}());\n/**\n * Button that moves to the previous step in a stepper workflow.\n */\nvar CdkStepperPrevious = /** @class */ (function () {\n function CdkStepperPrevious(_stepper) {\n this._stepper = _stepper;\n /**\n * Type of the previous button. Defaults to \"button\" if not specified.\n */\n this.type = 'button';\n }\n CdkStepperPrevious.decorators = [\n { type: Directive, args: [{\n selector: 'button[cdkStepperPrevious]',\n host: {\n '(click)': '_stepper.previous()',\n '[type]': 'type',\n }\n },] },\n ];\n /** @nocollapse */\n CdkStepperPrevious.ctorParameters = function () { return [\n { type: CdkStepper }\n ]; };\n CdkStepperPrevious.propDecorators = {\n type: [{ type: Input }]\n };\n return CdkStepperPrevious;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nvar CdkStepperModule = /** @class */ (function () {\n function CdkStepperModule() {\n }\n CdkStepperModule.decorators = [\n { type: NgModule, args: [{\n imports: [BidiModule, CommonModule],\n exports: [\n CdkStep,\n CdkStepper,\n CdkStepHeader,\n CdkStepLabel,\n CdkStepperNext,\n CdkStepperPrevious,\n ],\n declarations: [\n CdkStep,\n CdkStepper,\n CdkStepHeader,\n CdkStepLabel,\n CdkStepperNext,\n CdkStepperPrevious,\n ]\n },] },\n ];\n return CdkStepperModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { StepperSelectionEvent, STEP_STATE, STEPPER_GLOBAL_OPTIONS, MAT_STEPPER_GLOBAL_OPTIONS, CdkStep, CdkStepper, CdkStepLabel, CdkStepperNext, CdkStepperPrevious, CdkStepperModule, CdkStepHeader };\n//# sourceMappingURL=stepper.es5.js.map\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { __extends } from 'tslib';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { ContentChild, Directive, ElementRef, Input, TemplateRef, ChangeDetectionStrategy, Component, IterableDiffers, ViewContainerRef, ViewEncapsulation, Attribute, ChangeDetectorRef, ContentChildren, EmbeddedViewRef, isDevMode, Optional, ViewChild, Inject, NgModule } from '@angular/core';\nimport { DataSource } from '@angular/cdk/collections';\nexport { DataSource } from '@angular/cdk/collections';\nimport { DOCUMENT, CommonModule } from '@angular/common';\nimport { BehaviorSubject, Observable, of, Subject } from 'rxjs';\nimport { takeUntil } from 'rxjs/operators';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { Platform } from '@angular/cdk/platform';\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Mixin to provide a directive with a function that checks if the sticky input has been\n * changed since the last time the function was called. Essentially adds a dirty-check to the\n * sticky value.\n * \\@docs-private\n * @template T\n * @param {?} base\n * @return {?}\n */\nfunction mixinHasStickyInput(base) {\n return /** @class */ (function (_super) {\n __extends(class_1, _super);\n function class_1() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var _this = _super.apply(this, args) || this;\n _this._sticky = false;\n /**\n * Whether the sticky input has changed since it was last checked.\n */\n _this._hasStickyChanged = false;\n return _this;\n }\n Object.defineProperty(class_1.prototype, \"sticky\", {\n /** Whether sticky positioning should be applied. */\n get: /**\n * Whether sticky positioning should be applied.\n * @return {?}\n */\n function () { return this._sticky; },\n set: /**\n * @param {?} v\n * @return {?}\n */\n function (v) {\n /** @type {?} */\n var prevValue = this._sticky;\n this._sticky = coerceBooleanProperty(v);\n this._hasStickyChanged = prevValue !== this._sticky;\n },\n enumerable: true,\n configurable: true\n });\n /** Whether the sticky value has changed since this was last called. */\n /**\n * Whether the sticky value has changed since this was last called.\n * @return {?}\n */\n class_1.prototype.hasStickyChanged = /**\n * Whether the sticky value has changed since this was last called.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var hasStickyChanged = this._hasStickyChanged;\n this._hasStickyChanged = false;\n return hasStickyChanged;\n };\n /** Resets the dirty check for cases where the sticky state has been used without checking. */\n /**\n * Resets the dirty check for cases where the sticky state has been used without checking.\n * @return {?}\n */\n class_1.prototype.resetStickyChanged = /**\n * Resets the dirty check for cases where the sticky state has been used without checking.\n * @return {?}\n */\n function () {\n this._hasStickyChanged = false;\n };\n return class_1;\n }(base));\n}\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Cell definition for a CDK table.\n * Captures the template of a column's data row cell as well as cell-specific properties.\n */\nvar CdkCellDef = /** @class */ (function () {\n function CdkCellDef(/** @docs-private */ template) {\n this.template = template;\n }\n CdkCellDef.decorators = [\n { type: Directive, args: [{ selector: '[cdkCellDef]' },] },\n ];\n /** @nocollapse */\n CdkCellDef.ctorParameters = function () { return [\n { type: TemplateRef }\n ]; };\n return CdkCellDef;\n}());\n/**\n * Header cell definition for a CDK table.\n * Captures the template of a column's header cell and as well as cell-specific properties.\n */\nvar CdkHeaderCellDef = /** @class */ (function () {\n function CdkHeaderCellDef(/** @docs-private */ template) {\n this.template = template;\n }\n CdkHeaderCellDef.decorators = [\n { type: Directive, args: [{ selector: '[cdkHeaderCellDef]' },] },\n ];\n /** @nocollapse */\n CdkHeaderCellDef.ctorParameters = function () { return [\n { type: TemplateRef }\n ]; };\n return CdkHeaderCellDef;\n}());\n/**\n * Footer cell definition for a CDK table.\n * Captures the template of a column's footer cell and as well as cell-specific properties.\n */\nvar CdkFooterCellDef = /** @class */ (function () {\n function CdkFooterCellDef(/** @docs-private */ template) {\n this.template = template;\n }\n CdkFooterCellDef.decorators = [\n { type: Directive, args: [{ selector: '[cdkFooterCellDef]' },] },\n ];\n /** @nocollapse */\n CdkFooterCellDef.ctorParameters = function () { return [\n { type: TemplateRef }\n ]; };\n return CdkFooterCellDef;\n}());\n// Boilerplate for applying mixins to CdkColumnDef.\n/**\n * \\@docs-private\n */\nvar \n// Boilerplate for applying mixins to CdkColumnDef.\n/**\n * \\@docs-private\n */\nCdkColumnDefBase = /** @class */ (function () {\n function CdkColumnDefBase() {\n }\n return CdkColumnDefBase;\n}());\n/** @type {?} */\nvar _CdkColumnDefBase = mixinHasStickyInput(CdkColumnDefBase);\n/**\n * Column definition for the CDK table.\n * Defines a set of cells available for a table column.\n */\nvar CdkColumnDef = /** @class */ (function (_super) {\n __extends(CdkColumnDef, _super);\n function CdkColumnDef() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this._stickyEnd = false;\n return _this;\n }\n Object.defineProperty(CdkColumnDef.prototype, \"name\", {\n /** Unique name for this column. */\n get: /**\n * Unique name for this column.\n * @return {?}\n */\n function () { return this._name; },\n set: /**\n * @param {?} name\n * @return {?}\n */\n function (name) {\n // If the directive is set without a name (updated programatically), then this setter will\n // trigger with an empty string and should not overwrite the programatically set value.\n if (!name) {\n return;\n }\n this._name = name;\n this.cssClassFriendlyName = name.replace(/[^a-z0-9_-]/ig, '-');\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkColumnDef.prototype, \"stickyEnd\", {\n /**\n * Whether this column should be sticky positioned on the end of the row. Should make sure\n * that it mimics the `CanStick` mixin such that `_hasStickyChanged` is set to true if the value\n * has been changed.\n */\n get: /**\n * Whether this column should be sticky positioned on the end of the row. Should make sure\n * that it mimics the `CanStick` mixin such that `_hasStickyChanged` is set to true if the value\n * has been changed.\n * @return {?}\n */\n function () { return this._stickyEnd; },\n set: /**\n * @param {?} v\n * @return {?}\n */\n function (v) {\n /** @type {?} */\n var prevValue = this._stickyEnd;\n this._stickyEnd = coerceBooleanProperty(v);\n this._hasStickyChanged = prevValue !== this._stickyEnd;\n },\n enumerable: true,\n configurable: true\n });\n CdkColumnDef.decorators = [\n { type: Directive, args: [{\n selector: '[cdkColumnDef]',\n inputs: ['sticky'],\n providers: [{\n provide: 'MAT_SORT_HEADER_COLUMN_DEF',\n useExisting: CdkColumnDef\n }],\n },] },\n ];\n CdkColumnDef.propDecorators = {\n name: [{ type: Input, args: ['cdkColumnDef',] }],\n stickyEnd: [{ type: Input, args: ['stickyEnd',] }],\n cell: [{ type: ContentChild, args: [CdkCellDef,] }],\n headerCell: [{ type: ContentChild, args: [CdkHeaderCellDef,] }],\n footerCell: [{ type: ContentChild, args: [CdkFooterCellDef,] }]\n };\n return CdkColumnDef;\n}(_CdkColumnDefBase));\n/**\n * Base class for the cells. Adds a CSS classname that identifies the column it renders in.\n */\nvar /**\n * Base class for the cells. Adds a CSS classname that identifies the column it renders in.\n */\nBaseCdkCell = /** @class */ (function () {\n function BaseCdkCell(columnDef, elementRef) {\n /** @type {?} */\n var columnClassName = \"cdk-column-\" + columnDef.cssClassFriendlyName;\n elementRef.nativeElement.classList.add(columnClassName);\n }\n return BaseCdkCell;\n}());\n/**\n * Header cell template container that adds the right classes and role.\n */\nvar CdkHeaderCell = /** @class */ (function (_super) {\n __extends(CdkHeaderCell, _super);\n function CdkHeaderCell(columnDef, elementRef) {\n return _super.call(this, columnDef, elementRef) || this;\n }\n CdkHeaderCell.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-header-cell, th[cdk-header-cell]',\n host: {\n 'class': 'cdk-header-cell',\n 'role': 'columnheader',\n },\n },] },\n ];\n /** @nocollapse */\n CdkHeaderCell.ctorParameters = function () { return [\n { type: CdkColumnDef },\n { type: ElementRef }\n ]; };\n return CdkHeaderCell;\n}(BaseCdkCell));\n/**\n * Footer cell template container that adds the right classes and role.\n */\nvar CdkFooterCell = /** @class */ (function (_super) {\n __extends(CdkFooterCell, _super);\n function CdkFooterCell(columnDef, elementRef) {\n return _super.call(this, columnDef, elementRef) || this;\n }\n CdkFooterCell.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-footer-cell, td[cdk-footer-cell]',\n host: {\n 'class': 'cdk-footer-cell',\n 'role': 'gridcell',\n },\n },] },\n ];\n /** @nocollapse */\n CdkFooterCell.ctorParameters = function () { return [\n { type: CdkColumnDef },\n { type: ElementRef }\n ]; };\n return CdkFooterCell;\n}(BaseCdkCell));\n/**\n * Cell template container that adds the right classes and role.\n */\nvar CdkCell = /** @class */ (function (_super) {\n __extends(CdkCell, _super);\n function CdkCell(columnDef, elementRef) {\n return _super.call(this, columnDef, elementRef) || this;\n }\n CdkCell.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-cell, td[cdk-cell]',\n host: {\n 'class': 'cdk-cell',\n 'role': 'gridcell',\n },\n },] },\n ];\n /** @nocollapse */\n CdkCell.ctorParameters = function () { return [\n { type: CdkColumnDef },\n { type: ElementRef }\n ]; };\n return CdkCell;\n}(BaseCdkCell));\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The row template that can be used by the mat-table. Should not be used outside of the\n * material library.\n * @type {?}\n */\nvar CDK_ROW_TEMPLATE = \"\";\n/**\n * Base class for the CdkHeaderRowDef and CdkRowDef that handles checking their columns inputs\n * for changes and notifying the table.\n * @abstract\n */\nvar /**\n * Base class for the CdkHeaderRowDef and CdkRowDef that handles checking their columns inputs\n * for changes and notifying the table.\n * @abstract\n */\nBaseRowDef = /** @class */ (function () {\n function BaseRowDef(/** @docs-private */ template, _differs) {\n this.template = template;\n this._differs = _differs;\n }\n /**\n * @param {?} changes\n * @return {?}\n */\n BaseRowDef.prototype.ngOnChanges = /**\n * @param {?} changes\n * @return {?}\n */\n function (changes) {\n // Create a new columns differ if one does not yet exist. Initialize it based on initial value\n // of the columns property or an empty array if none is provided.\n if (!this._columnsDiffer) {\n /** @type {?} */\n var columns = (changes['columns'] && changes['columns'].currentValue) || [];\n this._columnsDiffer = this._differs.find(columns).create();\n this._columnsDiffer.diff(columns);\n }\n };\n /**\n * Returns the difference between the current columns and the columns from the last diff, or null\n * if there is no difference.\n */\n /**\n * Returns the difference between the current columns and the columns from the last diff, or null\n * if there is no difference.\n * @return {?}\n */\n BaseRowDef.prototype.getColumnsDiff = /**\n * Returns the difference between the current columns and the columns from the last diff, or null\n * if there is no difference.\n * @return {?}\n */\n function () {\n return this._columnsDiffer.diff(this.columns);\n };\n /** Gets this row def's relevant cell template from the provided column def. */\n /**\n * Gets this row def's relevant cell template from the provided column def.\n * @param {?} column\n * @return {?}\n */\n BaseRowDef.prototype.extractCellTemplate = /**\n * Gets this row def's relevant cell template from the provided column def.\n * @param {?} column\n * @return {?}\n */\n function (column) {\n if (this instanceof CdkHeaderRowDef) {\n return column.headerCell.template;\n }\n if (this instanceof CdkFooterRowDef) {\n return column.footerCell.template;\n }\n else {\n return column.cell.template;\n }\n };\n return BaseRowDef;\n}());\n// Boilerplate for applying mixins to CdkHeaderRowDef.\n/**\n * \\@docs-private\n */\nvar \n// Boilerplate for applying mixins to CdkHeaderRowDef.\n/**\n * \\@docs-private\n */\nCdkHeaderRowDefBase = /** @class */ (function (_super) {\n __extends(CdkHeaderRowDefBase, _super);\n function CdkHeaderRowDefBase() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n return CdkHeaderRowDefBase;\n}(BaseRowDef));\n/** @type {?} */\nvar _CdkHeaderRowDefBase = mixinHasStickyInput(CdkHeaderRowDefBase);\n/**\n * Header row definition for the CDK table.\n * Captures the header row's template and other header properties such as the columns to display.\n */\nvar CdkHeaderRowDef = /** @class */ (function (_super) {\n __extends(CdkHeaderRowDef, _super);\n function CdkHeaderRowDef(template, _differs) {\n return _super.call(this, template, _differs) || this;\n }\n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n /**\n * @param {?} changes\n * @return {?}\n */\n CdkHeaderRowDef.prototype.ngOnChanges = \n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n /**\n * @param {?} changes\n * @return {?}\n */\n function (changes) {\n _super.prototype.ngOnChanges.call(this, changes);\n };\n CdkHeaderRowDef.decorators = [\n { type: Directive, args: [{\n selector: '[cdkHeaderRowDef]',\n inputs: ['columns: cdkHeaderRowDef', 'sticky: cdkHeaderRowDefSticky'],\n },] },\n ];\n /** @nocollapse */\n CdkHeaderRowDef.ctorParameters = function () { return [\n { type: TemplateRef },\n { type: IterableDiffers }\n ]; };\n return CdkHeaderRowDef;\n}(_CdkHeaderRowDefBase));\n// Boilerplate for applying mixins to CdkFooterRowDef.\n/**\n * \\@docs-private\n */\nvar \n// Boilerplate for applying mixins to CdkFooterRowDef.\n/**\n * \\@docs-private\n */\nCdkFooterRowDefBase = /** @class */ (function (_super) {\n __extends(CdkFooterRowDefBase, _super);\n function CdkFooterRowDefBase() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n return CdkFooterRowDefBase;\n}(BaseRowDef));\n/** @type {?} */\nvar _CdkFooterRowDefBase = mixinHasStickyInput(CdkFooterRowDefBase);\n/**\n * Footer row definition for the CDK table.\n * Captures the footer row's template and other footer properties such as the columns to display.\n */\nvar CdkFooterRowDef = /** @class */ (function (_super) {\n __extends(CdkFooterRowDef, _super);\n function CdkFooterRowDef(template, _differs) {\n return _super.call(this, template, _differs) || this;\n }\n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n /**\n * @param {?} changes\n * @return {?}\n */\n CdkFooterRowDef.prototype.ngOnChanges = \n // Prerender fails to recognize that ngOnChanges in a part of this class through inheritance.\n // Explicitly define it so that the method is called as part of the Angular lifecycle.\n /**\n * @param {?} changes\n * @return {?}\n */\n function (changes) {\n _super.prototype.ngOnChanges.call(this, changes);\n };\n CdkFooterRowDef.decorators = [\n { type: Directive, args: [{\n selector: '[cdkFooterRowDef]',\n inputs: ['columns: cdkFooterRowDef', 'sticky: cdkFooterRowDefSticky'],\n },] },\n ];\n /** @nocollapse */\n CdkFooterRowDef.ctorParameters = function () { return [\n { type: TemplateRef },\n { type: IterableDiffers }\n ]; };\n return CdkFooterRowDef;\n}(_CdkFooterRowDefBase));\n/**\n * Data row definition for the CDK table.\n * Captures the header row's template and other row properties such as the columns to display and\n * a when predicate that describes when this row should be used.\n * @template T\n */\nvar CdkRowDef = /** @class */ (function (_super) {\n __extends(CdkRowDef, _super);\n // TODO(andrewseguin): Add an input for providing a switch function to determine\n // if this template should be used.\n function CdkRowDef(template, _differs) {\n return _super.call(this, template, _differs) || this;\n }\n CdkRowDef.decorators = [\n { type: Directive, args: [{\n selector: '[cdkRowDef]',\n inputs: ['columns: cdkRowDefColumns', 'when: cdkRowDefWhen'],\n },] },\n ];\n /** @nocollapse */\n CdkRowDef.ctorParameters = function () { return [\n { type: TemplateRef },\n { type: IterableDiffers }\n ]; };\n return CdkRowDef;\n}(BaseRowDef));\n/**\n * Outlet for rendering cells inside of a row or header row.\n * \\@docs-private\n */\nvar CdkCellOutlet = /** @class */ (function () {\n function CdkCellOutlet(_viewContainer) {\n this._viewContainer = _viewContainer;\n CdkCellOutlet.mostRecentCellOutlet = this;\n }\n /**\n * @return {?}\n */\n CdkCellOutlet.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n // If this was the last outlet being rendered in the view, remove the reference\n // from the static property after it has been destroyed to avoid leaking memory.\n if (CdkCellOutlet.mostRecentCellOutlet === this) {\n CdkCellOutlet.mostRecentCellOutlet = null;\n }\n };\n /**\n * Static property containing the latest constructed instance of this class.\n * Used by the CDK table when each CdkHeaderRow and CdkRow component is created using\n * createEmbeddedView. After one of these components are created, this property will provide\n * a handle to provide that component's cells and context. After init, the CdkCellOutlet will\n * construct the cells with the provided context.\n */\n CdkCellOutlet.mostRecentCellOutlet = null;\n CdkCellOutlet.decorators = [\n { type: Directive, args: [{ selector: '[cdkCellOutlet]' },] },\n ];\n /** @nocollapse */\n CdkCellOutlet.ctorParameters = function () { return [\n { type: ViewContainerRef }\n ]; };\n return CdkCellOutlet;\n}());\n/**\n * Header template container that contains the cell outlet. Adds the right class and role.\n */\nvar CdkHeaderRow = /** @class */ (function () {\n function CdkHeaderRow() {\n }\n CdkHeaderRow.decorators = [\n { type: Component, args: [{selector: 'cdk-header-row, tr[cdk-header-row]',\n template: CDK_ROW_TEMPLATE,\n host: {\n 'class': 'cdk-header-row',\n 'role': 'row',\n },\n changeDetection: ChangeDetectionStrategy.OnPush,\n encapsulation: ViewEncapsulation.None,\n },] },\n ];\n return CdkHeaderRow;\n}());\n/**\n * Footer template container that contains the cell outlet. Adds the right class and role.\n */\nvar CdkFooterRow = /** @class */ (function () {\n function CdkFooterRow() {\n }\n CdkFooterRow.decorators = [\n { type: Component, args: [{selector: 'cdk-footer-row, tr[cdk-footer-row]',\n template: CDK_ROW_TEMPLATE,\n host: {\n 'class': 'cdk-footer-row',\n 'role': 'row',\n },\n changeDetection: ChangeDetectionStrategy.OnPush,\n encapsulation: ViewEncapsulation.None,\n },] },\n ];\n return CdkFooterRow;\n}());\n/**\n * Data row template container that contains the cell outlet. Adds the right class and role.\n */\nvar CdkRow = /** @class */ (function () {\n function CdkRow() {\n }\n CdkRow.decorators = [\n { type: Component, args: [{selector: 'cdk-row, tr[cdk-row]',\n template: CDK_ROW_TEMPLATE,\n host: {\n 'class': 'cdk-row',\n 'role': 'row',\n },\n changeDetection: ChangeDetectionStrategy.OnPush,\n encapsulation: ViewEncapsulation.None,\n },] },\n ];\n return CdkRow;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Returns an error to be thrown when attempting to find an unexisting column.\n * \\@docs-private\n * @param {?} id Id whose lookup failed.\n * @return {?}\n */\nfunction getTableUnknownColumnError(id) {\n return Error(\"Could not find column with id \\\"\" + id + \"\\\".\");\n}\n/**\n * Returns an error to be thrown when two column definitions have the same name.\n * \\@docs-private\n * @param {?} name\n * @return {?}\n */\nfunction getTableDuplicateColumnNameError(name) {\n return Error(\"Duplicate column definition name provided: \\\"\" + name + \"\\\".\");\n}\n/**\n * Returns an error to be thrown when there are multiple rows that are missing a when function.\n * \\@docs-private\n * @return {?}\n */\nfunction getTableMultipleDefaultRowDefsError() {\n return Error(\"There can only be one default row without a when predicate function.\");\n}\n/**\n * Returns an error to be thrown when there are no matching row defs for a particular set of data.\n * \\@docs-private\n * @param {?} data\n * @return {?}\n */\nfunction getTableMissingMatchingRowDefError(data) {\n return Error(\"Could not find a matching row definition for the\" +\n (\"provided row data: \" + JSON.stringify(data)));\n}\n/**\n * Returns an error to be thrown when there is no row definitions present in the content.\n * \\@docs-private\n * @return {?}\n */\nfunction getTableMissingRowDefsError() {\n return Error('Missing definitions for header, footer, and row; ' +\n 'cannot determine which columns should be rendered.');\n}\n/**\n * Returns an error to be thrown when the data source does not match the compatible types.\n * \\@docs-private\n * @return {?}\n */\nfunction getTableUnknownDataSourceError() {\n return Error(\"Provided data source did not match an array, Observable, or DataSource\");\n}\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * List of all possible directions that can be used for sticky positioning.\n * \\@docs-private\n * @type {?}\n */\nvar STICKY_DIRECTIONS = ['top', 'bottom', 'left', 'right'];\n/**\n * Applies and removes sticky positioning styles to the `CdkTable` rows and columns cells.\n * \\@docs-private\n */\nvar /**\n * Applies and removes sticky positioning styles to the `CdkTable` rows and columns cells.\n * \\@docs-private\n */\nStickyStyler = /** @class */ (function () {\n /**\n * @param isNativeHtmlTable Whether the sticky logic should be based on a table\n * that uses the native `` element.\n * @param stickCellCss The CSS class that will be applied to every row/cell that has\n * sticky positioning applied.\n * @param direction The directionality context of the table (ltr/rtl); affects column positioning\n * by reversing left/right positions.\n * @param _isBrowser Whether the table is currently being rendered on the server or the client.\n */\n function StickyStyler(isNativeHtmlTable, stickCellCss, direction, _isBrowser) {\n if (_isBrowser === void 0) { _isBrowser = true; }\n this.isNativeHtmlTable = isNativeHtmlTable;\n this.stickCellCss = stickCellCss;\n this.direction = direction;\n this._isBrowser = _isBrowser;\n }\n /**\n * Clears the sticky positioning styles from the row and its cells by resetting the `position`\n * style, setting the zIndex to 0, and unsetting each provided sticky direction.\n * @param rows The list of rows that should be cleared from sticking in the provided directions\n * @param stickyDirections The directions that should no longer be set as sticky on the rows.\n */\n /**\n * Clears the sticky positioning styles from the row and its cells by resetting the `position`\n * style, setting the zIndex to 0, and unsetting each provided sticky direction.\n * @param {?} rows The list of rows that should be cleared from sticking in the provided directions\n * @param {?} stickyDirections The directions that should no longer be set as sticky on the rows.\n * @return {?}\n */\n StickyStyler.prototype.clearStickyPositioning = /**\n * Clears the sticky positioning styles from the row and its cells by resetting the `position`\n * style, setting the zIndex to 0, and unsetting each provided sticky direction.\n * @param {?} rows The list of rows that should be cleared from sticking in the provided directions\n * @param {?} stickyDirections The directions that should no longer be set as sticky on the rows.\n * @return {?}\n */\n function (rows, stickyDirections) {\n for (var _i = 0, rows_1 = rows; _i < rows_1.length; _i++) {\n var row = rows_1[_i];\n // If the row isn't an element (e.g. if it's an `ng-container`),\n // it won't have inline styles or `children` so we skip it.\n if (row.nodeType !== row.ELEMENT_NODE) {\n continue;\n }\n this._removeStickyStyle(row, stickyDirections);\n for (var i = 0; i < row.children.length; i++) {\n /** @type {?} */\n var cell = (/** @type {?} */ (row.children[i]));\n this._removeStickyStyle(cell, stickyDirections);\n }\n }\n };\n /**\n * Applies sticky left and right positions to the cells of each row according to the sticky\n * states of the rendered column definitions.\n * @param rows The rows that should have its set of cells stuck according to the sticky states.\n * @param stickyStartStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the start of the row.\n * @param stickyEndStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the end of the row.\n */\n /**\n * Applies sticky left and right positions to the cells of each row according to the sticky\n * states of the rendered column definitions.\n * @param {?} rows The rows that should have its set of cells stuck according to the sticky states.\n * @param {?} stickyStartStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the start of the row.\n * @param {?} stickyEndStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the end of the row.\n * @return {?}\n */\n StickyStyler.prototype.updateStickyColumns = /**\n * Applies sticky left and right positions to the cells of each row according to the sticky\n * states of the rendered column definitions.\n * @param {?} rows The rows that should have its set of cells stuck according to the sticky states.\n * @param {?} stickyStartStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the start of the row.\n * @param {?} stickyEndStates A list of boolean states where each state represents whether the cell\n * in this index position should be stuck to the end of the row.\n * @return {?}\n */\n function (rows, stickyStartStates, stickyEndStates) {\n /** @type {?} */\n var hasStickyColumns = stickyStartStates.some(function (state) { return state; }) || stickyEndStates.some(function (state) { return state; });\n if (!rows.length || !hasStickyColumns || !this._isBrowser) {\n return;\n }\n /** @type {?} */\n var firstRow = rows[0];\n /** @type {?} */\n var numCells = firstRow.children.length;\n /** @type {?} */\n var cellWidths = this._getCellWidths(firstRow);\n /** @type {?} */\n var startPositions = this._getStickyStartColumnPositions(cellWidths, stickyStartStates);\n /** @type {?} */\n var endPositions = this._getStickyEndColumnPositions(cellWidths, stickyEndStates);\n /** @type {?} */\n var isRtl = this.direction === 'rtl';\n for (var _i = 0, rows_2 = rows; _i < rows_2.length; _i++) {\n var row = rows_2[_i];\n for (var i = 0; i < numCells; i++) {\n /** @type {?} */\n var cell = (/** @type {?} */ (row.children[i]));\n if (stickyStartStates[i]) {\n this._addStickyStyle(cell, isRtl ? 'right' : 'left', startPositions[i]);\n }\n if (stickyEndStates[i]) {\n this._addStickyStyle(cell, isRtl ? 'left' : 'right', endPositions[i]);\n }\n }\n }\n };\n /**\n * Applies sticky positioning to the row's cells if using the native table layout, and to the\n * row itself otherwise.\n * @param rowsToStick The list of rows that should be stuck according to their corresponding\n * sticky state and to the provided top or bottom position.\n * @param stickyStates A list of boolean states where each state represents whether the row\n * should be stuck in the particular top or bottom position.\n * @param position The position direction in which the row should be stuck if that row should be\n * sticky.\n *\n */\n /**\n * Applies sticky positioning to the row's cells if using the native table layout, and to the\n * row itself otherwise.\n * @param {?} rowsToStick The list of rows that should be stuck according to their corresponding\n * sticky state and to the provided top or bottom position.\n * @param {?} stickyStates A list of boolean states where each state represents whether the row\n * should be stuck in the particular top or bottom position.\n * @param {?} position The position direction in which the row should be stuck if that row should be\n * sticky.\n *\n * @return {?}\n */\n StickyStyler.prototype.stickRows = /**\n * Applies sticky positioning to the row's cells if using the native table layout, and to the\n * row itself otherwise.\n * @param {?} rowsToStick The list of rows that should be stuck according to their corresponding\n * sticky state and to the provided top or bottom position.\n * @param {?} stickyStates A list of boolean states where each state represents whether the row\n * should be stuck in the particular top or bottom position.\n * @param {?} position The position direction in which the row should be stuck if that row should be\n * sticky.\n *\n * @return {?}\n */\n function (rowsToStick, stickyStates, position) {\n // Since we can't measure the rows on the server, we can't stick the rows properly.\n if (!this._isBrowser) {\n return;\n }\n // If positioning the rows to the bottom, reverse their order when evaluating the sticky\n // position such that the last row stuck will be \"bottom: 0px\" and so on.\n /** @type {?} */\n var rows = position === 'bottom' ? rowsToStick.reverse() : rowsToStick;\n /** @type {?} */\n var stickyHeight = 0;\n for (var rowIndex = 0; rowIndex < rows.length; rowIndex++) {\n if (!stickyStates[rowIndex]) {\n continue;\n }\n /** @type {?} */\n var row = rows[rowIndex];\n if (this.isNativeHtmlTable) {\n for (var j = 0; j < row.children.length; j++) {\n /** @type {?} */\n var cell = (/** @type {?} */ (row.children[j]));\n this._addStickyStyle(cell, position, stickyHeight);\n }\n }\n else {\n // Flex does not respect the stick positioning on the cells, needs to be applied to the row.\n // If this is applied on a native table, Safari causes the header to fly in wrong direction.\n this._addStickyStyle(row, position, stickyHeight);\n }\n if (rowIndex === rows.length - 1) {\n // prevent unnecessary reflow from getBoundingClientRect()\n return;\n }\n stickyHeight += row.getBoundingClientRect().height;\n }\n };\n /**\n * When using the native table in Safari, sticky footer cells do not stick. The only way to stick\n * footer rows is to apply sticky styling to the tfoot container. This should only be done if\n * all footer rows are sticky. If not all footer rows are sticky, remove sticky positioning from\n * the tfoot element.\n */\n /**\n * When using the native table in Safari, sticky footer cells do not stick. The only way to stick\n * footer rows is to apply sticky styling to the tfoot container. This should only be done if\n * all footer rows are sticky. If not all footer rows are sticky, remove sticky positioning from\n * the tfoot element.\n * @param {?} tableElement\n * @param {?} stickyStates\n * @return {?}\n */\n StickyStyler.prototype.updateStickyFooterContainer = /**\n * When using the native table in Safari, sticky footer cells do not stick. The only way to stick\n * footer rows is to apply sticky styling to the tfoot container. This should only be done if\n * all footer rows are sticky. If not all footer rows are sticky, remove sticky positioning from\n * the tfoot element.\n * @param {?} tableElement\n * @param {?} stickyStates\n * @return {?}\n */\n function (tableElement, stickyStates) {\n if (!this.isNativeHtmlTable) {\n return;\n }\n /** @type {?} */\n var tfoot = (/** @type {?} */ (tableElement.querySelector('tfoot')));\n if (stickyStates.some(function (state) { return !state; })) {\n this._removeStickyStyle(tfoot, ['bottom']);\n }\n else {\n this._addStickyStyle(tfoot, 'bottom', 0);\n }\n };\n /**\n * Removes the sticky style on the element by removing the sticky cell CSS class, re-evaluating\n * the zIndex, removing each of the provided sticky directions, and removing the\n * sticky position if there are no more directions.\n */\n /**\n * Removes the sticky style on the element by removing the sticky cell CSS class, re-evaluating\n * the zIndex, removing each of the provided sticky directions, and removing the\n * sticky position if there are no more directions.\n * @param {?} element\n * @param {?} stickyDirections\n * @return {?}\n */\n StickyStyler.prototype._removeStickyStyle = /**\n * Removes the sticky style on the element by removing the sticky cell CSS class, re-evaluating\n * the zIndex, removing each of the provided sticky directions, and removing the\n * sticky position if there are no more directions.\n * @param {?} element\n * @param {?} stickyDirections\n * @return {?}\n */\n function (element, stickyDirections) {\n for (var _i = 0, stickyDirections_1 = stickyDirections; _i < stickyDirections_1.length; _i++) {\n var dir = stickyDirections_1[_i];\n element.style[dir] = '';\n }\n element.style.zIndex = this._getCalculatedZIndex(element);\n // If the element no longer has any more sticky directions, remove sticky positioning and\n // the sticky CSS class.\n /** @type {?} */\n var hasDirection = STICKY_DIRECTIONS.some(function (dir) { return !!element.style[dir]; });\n if (!hasDirection) {\n element.style.position = '';\n element.classList.remove(this.stickCellCss);\n }\n };\n /**\n * Adds the sticky styling to the element by adding the sticky style class, changing position\n * to be sticky (and -webkit-sticky), setting the appropriate zIndex, and adding a sticky\n * direction and value.\n */\n /**\n * Adds the sticky styling to the element by adding the sticky style class, changing position\n * to be sticky (and -webkit-sticky), setting the appropriate zIndex, and adding a sticky\n * direction and value.\n * @param {?} element\n * @param {?} dir\n * @param {?} dirValue\n * @return {?}\n */\n StickyStyler.prototype._addStickyStyle = /**\n * Adds the sticky styling to the element by adding the sticky style class, changing position\n * to be sticky (and -webkit-sticky), setting the appropriate zIndex, and adding a sticky\n * direction and value.\n * @param {?} element\n * @param {?} dir\n * @param {?} dirValue\n * @return {?}\n */\n function (element, dir, dirValue) {\n element.classList.add(this.stickCellCss);\n element.style[dir] = dirValue + \"px\";\n element.style.cssText += 'position: -webkit-sticky; position: sticky; ';\n element.style.zIndex = this._getCalculatedZIndex(element);\n };\n /**\n * Calculate what the z-index should be for the element, depending on what directions (top,\n * bottom, left, right) have been set. It should be true that elements with a top direction\n * should have the highest index since these are elements like a table header. If any of those\n * elements are also sticky in another direction, then they should appear above other elements\n * that are only sticky top (e.g. a sticky column on a sticky header). Bottom-sticky elements\n * (e.g. footer rows) should then be next in the ordering such that they are below the header\n * but above any non-sticky elements. Finally, left/right sticky elements (e.g. sticky columns)\n * should minimally increment so that they are above non-sticky elements but below top and bottom\n * elements.\n */\n /**\n * Calculate what the z-index should be for the element, depending on what directions (top,\n * bottom, left, right) have been set. It should be true that elements with a top direction\n * should have the highest index since these are elements like a table header. If any of those\n * elements are also sticky in another direction, then they should appear above other elements\n * that are only sticky top (e.g. a sticky column on a sticky header). Bottom-sticky elements\n * (e.g. footer rows) should then be next in the ordering such that they are below the header\n * but above any non-sticky elements. Finally, left/right sticky elements (e.g. sticky columns)\n * should minimally increment so that they are above non-sticky elements but below top and bottom\n * elements.\n * @param {?} element\n * @return {?}\n */\n StickyStyler.prototype._getCalculatedZIndex = /**\n * Calculate what the z-index should be for the element, depending on what directions (top,\n * bottom, left, right) have been set. It should be true that elements with a top direction\n * should have the highest index since these are elements like a table header. If any of those\n * elements are also sticky in another direction, then they should appear above other elements\n * that are only sticky top (e.g. a sticky column on a sticky header). Bottom-sticky elements\n * (e.g. footer rows) should then be next in the ordering such that they are below the header\n * but above any non-sticky elements. Finally, left/right sticky elements (e.g. sticky columns)\n * should minimally increment so that they are above non-sticky elements but below top and bottom\n * elements.\n * @param {?} element\n * @return {?}\n */\n function (element) {\n /** @type {?} */\n var zIndexIncrements = {\n top: 100,\n bottom: 10,\n left: 1,\n right: 1,\n };\n /** @type {?} */\n var zIndex = 0;\n for (var _i = 0, STICKY_DIRECTIONS_1 = STICKY_DIRECTIONS; _i < STICKY_DIRECTIONS_1.length; _i++) {\n var dir = STICKY_DIRECTIONS_1[_i];\n if (element.style[dir]) {\n zIndex += zIndexIncrements[dir];\n }\n }\n return zIndex ? \"\" + zIndex : '';\n };\n /** Gets the widths for each cell in the provided row. */\n /**\n * Gets the widths for each cell in the provided row.\n * @param {?} row\n * @return {?}\n */\n StickyStyler.prototype._getCellWidths = /**\n * Gets the widths for each cell in the provided row.\n * @param {?} row\n * @return {?}\n */\n function (row) {\n /** @type {?} */\n var cellWidths = [];\n /** @type {?} */\n var firstRowCells = row.children;\n for (var i = 0; i < firstRowCells.length; i++) {\n /** @type {?} */\n var cell = (/** @type {?} */ (firstRowCells[i]));\n cellWidths.push(cell.getBoundingClientRect().width);\n }\n return cellWidths;\n };\n /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n */\n /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n * @param {?} widths\n * @param {?} stickyStates\n * @return {?}\n */\n StickyStyler.prototype._getStickyStartColumnPositions = /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n * @param {?} widths\n * @param {?} stickyStates\n * @return {?}\n */\n function (widths, stickyStates) {\n /** @type {?} */\n var positions = [];\n /** @type {?} */\n var nextPosition = 0;\n for (var i = 0; i < widths.length; i++) {\n if (stickyStates[i]) {\n positions[i] = nextPosition;\n nextPosition += widths[i];\n }\n }\n return positions;\n };\n /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n */\n /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n * @param {?} widths\n * @param {?} stickyStates\n * @return {?}\n */\n StickyStyler.prototype._getStickyEndColumnPositions = /**\n * Determines the left and right positions of each sticky column cell, which will be the\n * accumulation of all sticky column cell widths to the left and right, respectively.\n * Non-sticky cells do not need to have a value set since their positions will not be applied.\n * @param {?} widths\n * @param {?} stickyStates\n * @return {?}\n */\n function (widths, stickyStates) {\n /** @type {?} */\n var positions = [];\n /** @type {?} */\n var nextPosition = 0;\n for (var i = widths.length; i > 0; i--) {\n if (stickyStates[i]) {\n positions[i] = nextPosition;\n nextPosition += widths[i];\n }\n }\n return positions;\n };\n return StickyStyler;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Provides a handle for the table to grab the view container's ng-container to insert data rows.\n * \\@docs-private\n */\nvar DataRowOutlet = /** @class */ (function () {\n function DataRowOutlet(viewContainer, elementRef) {\n this.viewContainer = viewContainer;\n this.elementRef = elementRef;\n }\n DataRowOutlet.decorators = [\n { type: Directive, args: [{ selector: '[rowOutlet]' },] },\n ];\n /** @nocollapse */\n DataRowOutlet.ctorParameters = function () { return [\n { type: ViewContainerRef },\n { type: ElementRef }\n ]; };\n return DataRowOutlet;\n}());\n/**\n * Provides a handle for the table to grab the view container's ng-container to insert the header.\n * \\@docs-private\n */\nvar HeaderRowOutlet = /** @class */ (function () {\n function HeaderRowOutlet(viewContainer, elementRef) {\n this.viewContainer = viewContainer;\n this.elementRef = elementRef;\n }\n HeaderRowOutlet.decorators = [\n { type: Directive, args: [{ selector: '[headerRowOutlet]' },] },\n ];\n /** @nocollapse */\n HeaderRowOutlet.ctorParameters = function () { return [\n { type: ViewContainerRef },\n { type: ElementRef }\n ]; };\n return HeaderRowOutlet;\n}());\n/**\n * Provides a handle for the table to grab the view container's ng-container to insert the footer.\n * \\@docs-private\n */\nvar FooterRowOutlet = /** @class */ (function () {\n function FooterRowOutlet(viewContainer, elementRef) {\n this.viewContainer = viewContainer;\n this.elementRef = elementRef;\n }\n FooterRowOutlet.decorators = [\n { type: Directive, args: [{ selector: '[footerRowOutlet]' },] },\n ];\n /** @nocollapse */\n FooterRowOutlet.ctorParameters = function () { return [\n { type: ViewContainerRef },\n { type: ElementRef }\n ]; };\n return FooterRowOutlet;\n}());\n/**\n * The table template that can be used by the mat-table. Should not be used outside of the\n * material library.\n * \\@docs-private\n * @type {?}\n */\nvar CDK_TABLE_TEMPLATE = \"\\n \\n \\n \";\n/**\n * Class used to conveniently type the embedded view ref for rows with a context.\n * \\@docs-private\n * @abstract\n * @template T\n */\nvar /**\n * Class used to conveniently type the embedded view ref for rows with a context.\n * \\@docs-private\n * @abstract\n * @template T\n */\nRowViewRef = /** @class */ (function (_super) {\n __extends(RowViewRef, _super);\n function RowViewRef() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n return RowViewRef;\n}(EmbeddedViewRef));\n/**\n * A data table that can render a header row, data rows, and a footer row.\n * Uses the dataSource input to determine the data to be rendered. The data can be provided either\n * as a data array, an Observable stream that emits the data array to render, or a DataSource with a\n * connect function that will return an Observable stream that emits the data array to render.\n * @template T\n */\nvar CdkTable = /** @class */ (function () {\n function CdkTable(_differs, _changeDetectorRef, _elementRef, role, _dir, \n /**\n * @deprecated\n * @breaking-change 8.0.0 `_document` and `_platform` to\n * be made into a required parameters.\n */\n _document, _platform) {\n this._differs = _differs;\n this._changeDetectorRef = _changeDetectorRef;\n this._elementRef = _elementRef;\n this._dir = _dir;\n this._platform = _platform;\n /**\n * Subject that emits when the component has been destroyed.\n */\n this._onDestroy = new Subject();\n /**\n * Map of all the user's defined columns (header, data, and footer cell template) identified by\n * name. Collection populated by the column definitions gathered by `ContentChildren` as well as\n * any custom column definitions added to `_customColumnDefs`.\n */\n this._columnDefsByName = new Map();\n /**\n * Column definitions that were defined outside of the direct content children of the table.\n * These will be defined when, e.g., creating a wrapper around the cdkTable that has\n * column definitions as *it's* content child.\n */\n this._customColumnDefs = new Set();\n /**\n * Data row definitions that were defined outside of the direct content children of the table.\n * These will be defined when, e.g., creating a wrapper around the cdkTable that has\n * built-in data rows as *it's* content child.\n */\n this._customRowDefs = new Set();\n /**\n * Header row definitions that were defined outside of the direct content children of the table.\n * These will be defined when, e.g., creating a wrapper around the cdkTable that has\n * built-in header rows as *it's* content child.\n */\n this._customHeaderRowDefs = new Set();\n /**\n * Footer row definitions that were defined outside of the direct content children of the table.\n * These will be defined when, e.g., creating a wrapper around the cdkTable that has a\n * built-in footer row as *it's* content child.\n */\n this._customFooterRowDefs = new Set();\n /**\n * Whether the header row definition has been changed. Triggers an update to the header row after\n * content is checked. Initialized as true so that the table renders the initial set of rows.\n */\n this._headerRowDefChanged = true;\n /**\n * Whether the footer row definition has been changed. Triggers an update to the footer row after\n * content is checked. Initialized as true so that the table renders the initial set of rows.\n */\n this._footerRowDefChanged = true;\n /**\n * Cache of the latest rendered `RenderRow` objects as a map for easy retrieval when constructing\n * a new list of `RenderRow` objects for rendering rows. Since the new list is constructed with\n * the cached `RenderRow` objects when possible, the row identity is preserved when the data\n * and row template matches, which allows the `IterableDiffer` to check rows by reference\n * and understand which rows are added/moved/removed.\n *\n * Implemented as a map of maps where the first key is the `data: T` object and the second is the\n * `CdkRowDef` object. With the two keys, the cache points to a `RenderRow` object that\n * contains an array of created pairs. The array is necessary to handle cases where the data\n * array contains multiple duplicate data objects and each instantiated `RenderRow` must be\n * stored.\n */\n this._cachedRenderRowsMap = new Map();\n /**\n * CSS class added to any row or cell that has sticky positioning applied. May be overriden by\n * table subclasses.\n */\n this.stickyCssClass = 'cdk-table-sticky';\n this._multiTemplateDataRows = false;\n // TODO(andrewseguin): Remove max value as the end index\n // and instead calculate the view on init and scroll.\n /**\n * Stream containing the latest information on what rows are being displayed on screen.\n * Can be used by the data source to as a heuristic of what data should be provided.\n */\n this.viewChange = new BehaviorSubject({ start: 0, end: Number.MAX_VALUE });\n if (!role) {\n this._elementRef.nativeElement.setAttribute('role', 'grid');\n }\n this._document = _document;\n this._isNativeHtmlTable = this._elementRef.nativeElement.nodeName === 'TABLE';\n }\n Object.defineProperty(CdkTable.prototype, \"trackBy\", {\n /**\n * Tracking function that will be used to check the differences in data changes. Used similarly\n * to `ngFor` `trackBy` function. Optimize row operations by identifying a row based on its data\n * relative to the function to know if a row should be added/removed/moved.\n * Accepts a function that takes two parameters, `index` and `item`.\n */\n get: /**\n * Tracking function that will be used to check the differences in data changes. Used similarly\n * to `ngFor` `trackBy` function. Optimize row operations by identifying a row based on its data\n * relative to the function to know if a row should be added/removed/moved.\n * Accepts a function that takes two parameters, `index` and `item`.\n * @return {?}\n */\n function () { return this._trackByFn; },\n set: /**\n * @param {?} fn\n * @return {?}\n */\n function (fn) {\n if (isDevMode() &&\n fn != null && typeof fn !== 'function' &&\n (/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {\n console.warn(\"trackBy must be a function, but received \" + JSON.stringify(fn) + \".\");\n }\n this._trackByFn = fn;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTable.prototype, \"dataSource\", {\n /**\n * The table's source of data, which can be provided in three ways (in order of complexity):\n * - Simple data array (each object represents one table row)\n * - Stream that emits a data array each time the array changes\n * - `DataSource` object that implements the connect/disconnect interface.\n *\n * If a data array is provided, the table must be notified when the array's objects are\n * added, removed, or moved. This can be done by calling the `renderRows()` function which will\n * render the diff since the last table render. If the data array reference is changed, the table\n * will automatically trigger an update to the rows.\n *\n * When providing an Observable stream, the table will trigger an update automatically when the\n * stream emits a new array of data.\n *\n * Finally, when providing a `DataSource` object, the table will use the Observable stream\n * provided by the connect function and trigger updates when that stream emits new data array\n * values. During the table's ngOnDestroy or when the data source is removed from the table, the\n * table will call the DataSource's `disconnect` function (may be useful for cleaning up any\n * subscriptions registered during the connect process).\n */\n get: /**\n * The table's source of data, which can be provided in three ways (in order of complexity):\n * - Simple data array (each object represents one table row)\n * - Stream that emits a data array each time the array changes\n * - `DataSource` object that implements the connect/disconnect interface.\n *\n * If a data array is provided, the table must be notified when the array's objects are\n * added, removed, or moved. This can be done by calling the `renderRows()` function which will\n * render the diff since the last table render. If the data array reference is changed, the table\n * will automatically trigger an update to the rows.\n *\n * When providing an Observable stream, the table will trigger an update automatically when the\n * stream emits a new array of data.\n *\n * Finally, when providing a `DataSource` object, the table will use the Observable stream\n * provided by the connect function and trigger updates when that stream emits new data array\n * values. During the table's ngOnDestroy or when the data source is removed from the table, the\n * table will call the DataSource's `disconnect` function (may be useful for cleaning up any\n * subscriptions registered during the connect process).\n * @return {?}\n */\n function () { return this._dataSource; },\n set: /**\n * @param {?} dataSource\n * @return {?}\n */\n function (dataSource) {\n if (this._dataSource !== dataSource) {\n this._switchDataSource(dataSource);\n }\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTable.prototype, \"multiTemplateDataRows\", {\n /**\n * Whether to allow multiple rows per data object by evaluating which rows evaluate their 'when'\n * predicate to true. If `multiTemplateDataRows` is false, which is the default value, then each\n * dataobject will render the first row that evaluates its when predicate to true, in the order\n * defined in the table, or otherwise the default row which does not have a when predicate.\n */\n get: /**\n * Whether to allow multiple rows per data object by evaluating which rows evaluate their 'when'\n * predicate to true. If `multiTemplateDataRows` is false, which is the default value, then each\n * dataobject will render the first row that evaluates its when predicate to true, in the order\n * defined in the table, or otherwise the default row which does not have a when predicate.\n * @return {?}\n */\n function () { return this._multiTemplateDataRows; },\n set: /**\n * @param {?} v\n * @return {?}\n */\n function (v) {\n this._multiTemplateDataRows = coerceBooleanProperty(v);\n if (this._rowOutlet.viewContainer.length) {\n this._forceRenderDataRows();\n }\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkTable.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n this._setupStickyStyler();\n if (this._isNativeHtmlTable) {\n this._applyNativeTableSections();\n }\n // Set up the trackBy function so that it uses the `RenderRow` as its identity by default. If\n // the user has provided a custom trackBy, return the result of that function as evaluated\n // with the values of the `RenderRow`'s data and index.\n this._dataDiffer = this._differs.find([]).create(function (_i, dataRow) {\n return _this.trackBy ? _this.trackBy(dataRow.dataIndex, dataRow.data) : dataRow;\n });\n };\n /**\n * @return {?}\n */\n CdkTable.prototype.ngAfterContentChecked = /**\n * @return {?}\n */\n function () {\n // Cache the row and column definitions gathered by ContentChildren and programmatic injection.\n this._cacheRowDefs();\n this._cacheColumnDefs();\n // Make sure that the user has at least added header, footer, or data row def.\n if (!this._headerRowDefs.length && !this._footerRowDefs.length && !this._rowDefs.length) {\n throw getTableMissingRowDefsError();\n }\n // Render updates if the list of columns have been changed for the header, row, or footer defs.\n this._renderUpdatedColumns();\n // If the header row definition has been changed, trigger a render to the header row.\n if (this._headerRowDefChanged) {\n this._forceRenderHeaderRows();\n this._headerRowDefChanged = false;\n }\n // If the footer row definition has been changed, trigger a render to the footer row.\n if (this._footerRowDefChanged) {\n this._forceRenderFooterRows();\n this._footerRowDefChanged = false;\n }\n // If there is a data source and row definitions, connect to the data source unless a\n // connection has already been made.\n if (this.dataSource && this._rowDefs.length > 0 && !this._renderChangeSubscription) {\n this._observeRenderChanges();\n }\n this._checkStickyStates();\n };\n /**\n * @return {?}\n */\n CdkTable.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._rowOutlet.viewContainer.clear();\n this._headerRowOutlet.viewContainer.clear();\n this._footerRowOutlet.viewContainer.clear();\n this._cachedRenderRowsMap.clear();\n this._onDestroy.next();\n this._onDestroy.complete();\n if (this.dataSource instanceof DataSource) {\n this.dataSource.disconnect(this);\n }\n };\n /**\n * Renders rows based on the table's latest set of data, which was either provided directly as an\n * input or retrieved through an Observable stream (directly or from a DataSource).\n * Checks for differences in the data since the last diff to perform only the necessary\n * changes (add/remove/move rows).\n *\n * If the table's data source is a DataSource or Observable, this will be invoked automatically\n * each time the provided Observable stream emits a new data array. Otherwise if your data is\n * an array, this function will need to be called to render any changes.\n */\n /**\n * Renders rows based on the table's latest set of data, which was either provided directly as an\n * input or retrieved through an Observable stream (directly or from a DataSource).\n * Checks for differences in the data since the last diff to perform only the necessary\n * changes (add/remove/move rows).\n *\n * If the table's data source is a DataSource or Observable, this will be invoked automatically\n * each time the provided Observable stream emits a new data array. Otherwise if your data is\n * an array, this function will need to be called to render any changes.\n * @return {?}\n */\n CdkTable.prototype.renderRows = /**\n * Renders rows based on the table's latest set of data, which was either provided directly as an\n * input or retrieved through an Observable stream (directly or from a DataSource).\n * Checks for differences in the data since the last diff to perform only the necessary\n * changes (add/remove/move rows).\n *\n * If the table's data source is a DataSource or Observable, this will be invoked automatically\n * each time the provided Observable stream emits a new data array. Otherwise if your data is\n * an array, this function will need to be called to render any changes.\n * @return {?}\n */\n function () {\n var _this = this;\n this._renderRows = this._getAllRenderRows();\n /** @type {?} */\n var changes = this._dataDiffer.diff(this._renderRows);\n if (!changes) {\n return;\n }\n /** @type {?} */\n var viewContainer = this._rowOutlet.viewContainer;\n changes.forEachOperation(function (record, prevIndex, currentIndex) {\n if (record.previousIndex == null) {\n _this._insertRow(record.item, (/** @type {?} */ (currentIndex)));\n }\n else if (currentIndex == null) {\n viewContainer.remove((/** @type {?} */ (prevIndex)));\n }\n else {\n /** @type {?} */\n var view = (/** @type {?} */ (viewContainer.get((/** @type {?} */ (prevIndex)))));\n viewContainer.move((/** @type {?} */ (view)), currentIndex);\n }\n });\n // Update the meta context of a row's context data (index, count, first, last, ...)\n this._updateRowIndexContext();\n // Update rows that did not get added/removed/moved but may have had their identity changed,\n // e.g. if trackBy matched data on some property but the actual data reference changed.\n changes.forEachIdentityChange(function (record) {\n /** @type {?} */\n var rowView = (/** @type {?} */ (viewContainer.get((/** @type {?} */ (record.currentIndex)))));\n rowView.context.$implicit = record.item.data;\n });\n this.updateStickyColumnStyles();\n };\n /**\n * Sets the header row definition to be used. Overrides the header row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the header row after the\n * table's content is checked.\n * @docs-private\n * @deprecated Use `addHeaderRowDef` and `removeHeaderRowDef` instead\n * @breaking-change 8.0.0\n */\n /**\n * Sets the header row definition to be used. Overrides the header row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the header row after the\n * table's content is checked.\n * \\@docs-private\n * @deprecated Use `addHeaderRowDef` and `removeHeaderRowDef` instead\n * \\@breaking-change 8.0.0\n * @param {?} headerRowDef\n * @return {?}\n */\n CdkTable.prototype.setHeaderRowDef = /**\n * Sets the header row definition to be used. Overrides the header row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the header row after the\n * table's content is checked.\n * \\@docs-private\n * @deprecated Use `addHeaderRowDef` and `removeHeaderRowDef` instead\n * \\@breaking-change 8.0.0\n * @param {?} headerRowDef\n * @return {?}\n */\n function (headerRowDef) {\n this._customHeaderRowDefs = new Set([headerRowDef]);\n this._headerRowDefChanged = true;\n };\n /**\n * Sets the footer row definition to be used. Overrides the footer row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the footer row after the\n * table's content is checked.\n * @docs-private\n * @deprecated Use `addFooterRowDef` and `removeFooterRowDef` instead\n * @breaking-change 8.0.0\n */\n /**\n * Sets the footer row definition to be used. Overrides the footer row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the footer row after the\n * table's content is checked.\n * \\@docs-private\n * @deprecated Use `addFooterRowDef` and `removeFooterRowDef` instead\n * \\@breaking-change 8.0.0\n * @param {?} footerRowDef\n * @return {?}\n */\n CdkTable.prototype.setFooterRowDef = /**\n * Sets the footer row definition to be used. Overrides the footer row definition gathered by\n * using `ContentChild`, if one exists. Sets a flag that will re-render the footer row after the\n * table's content is checked.\n * \\@docs-private\n * @deprecated Use `addFooterRowDef` and `removeFooterRowDef` instead\n * \\@breaking-change 8.0.0\n * @param {?} footerRowDef\n * @return {?}\n */\n function (footerRowDef) {\n this._customFooterRowDefs = new Set([footerRowDef]);\n this._footerRowDefChanged = true;\n };\n /** Adds a column definition that was not included as part of the content children. */\n /**\n * Adds a column definition that was not included as part of the content children.\n * @param {?} columnDef\n * @return {?}\n */\n CdkTable.prototype.addColumnDef = /**\n * Adds a column definition that was not included as part of the content children.\n * @param {?} columnDef\n * @return {?}\n */\n function (columnDef) {\n this._customColumnDefs.add(columnDef);\n };\n /** Removes a column definition that was not included as part of the content children. */\n /**\n * Removes a column definition that was not included as part of the content children.\n * @param {?} columnDef\n * @return {?}\n */\n CdkTable.prototype.removeColumnDef = /**\n * Removes a column definition that was not included as part of the content children.\n * @param {?} columnDef\n * @return {?}\n */\n function (columnDef) {\n this._customColumnDefs.delete(columnDef);\n };\n /** Adds a row definition that was not included as part of the content children. */\n /**\n * Adds a row definition that was not included as part of the content children.\n * @param {?} rowDef\n * @return {?}\n */\n CdkTable.prototype.addRowDef = /**\n * Adds a row definition that was not included as part of the content children.\n * @param {?} rowDef\n * @return {?}\n */\n function (rowDef) {\n this._customRowDefs.add(rowDef);\n };\n /** Removes a row definition that was not included as part of the content children. */\n /**\n * Removes a row definition that was not included as part of the content children.\n * @param {?} rowDef\n * @return {?}\n */\n CdkTable.prototype.removeRowDef = /**\n * Removes a row definition that was not included as part of the content children.\n * @param {?} rowDef\n * @return {?}\n */\n function (rowDef) {\n this._customRowDefs.delete(rowDef);\n };\n /** Adds a header row definition that was not included as part of the content children. */\n /**\n * Adds a header row definition that was not included as part of the content children.\n * @param {?} headerRowDef\n * @return {?}\n */\n CdkTable.prototype.addHeaderRowDef = /**\n * Adds a header row definition that was not included as part of the content children.\n * @param {?} headerRowDef\n * @return {?}\n */\n function (headerRowDef) {\n this._customHeaderRowDefs.add(headerRowDef);\n this._headerRowDefChanged = true;\n };\n /** Removes a header row definition that was not included as part of the content children. */\n /**\n * Removes a header row definition that was not included as part of the content children.\n * @param {?} headerRowDef\n * @return {?}\n */\n CdkTable.prototype.removeHeaderRowDef = /**\n * Removes a header row definition that was not included as part of the content children.\n * @param {?} headerRowDef\n * @return {?}\n */\n function (headerRowDef) {\n this._customHeaderRowDefs.delete(headerRowDef);\n this._headerRowDefChanged = true;\n };\n /** Adds a footer row definition that was not included as part of the content children. */\n /**\n * Adds a footer row definition that was not included as part of the content children.\n * @param {?} footerRowDef\n * @return {?}\n */\n CdkTable.prototype.addFooterRowDef = /**\n * Adds a footer row definition that was not included as part of the content children.\n * @param {?} footerRowDef\n * @return {?}\n */\n function (footerRowDef) {\n this._customFooterRowDefs.add(footerRowDef);\n this._footerRowDefChanged = true;\n };\n /** Removes a footer row definition that was not included as part of the content children. */\n /**\n * Removes a footer row definition that was not included as part of the content children.\n * @param {?} footerRowDef\n * @return {?}\n */\n CdkTable.prototype.removeFooterRowDef = /**\n * Removes a footer row definition that was not included as part of the content children.\n * @param {?} footerRowDef\n * @return {?}\n */\n function (footerRowDef) {\n this._customFooterRowDefs.delete(footerRowDef);\n this._footerRowDefChanged = true;\n };\n /**\n * Updates the header sticky styles. First resets all applied styles with respect to the cells\n * sticking to the top. Then, evaluating which cells need to be stuck to the top. This is\n * automatically called when the header row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n */\n /**\n * Updates the header sticky styles. First resets all applied styles with respect to the cells\n * sticking to the top. Then, evaluating which cells need to be stuck to the top. This is\n * automatically called when the header row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n * @return {?}\n */\n CdkTable.prototype.updateStickyHeaderRowStyles = /**\n * Updates the header sticky styles. First resets all applied styles with respect to the cells\n * sticking to the top. Then, evaluating which cells need to be stuck to the top. This is\n * automatically called when the header row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var headerRows = this._getRenderedRows(this._headerRowOutlet);\n this._stickyStyler.clearStickyPositioning(headerRows, ['top']);\n /** @type {?} */\n var stickyStates = this._headerRowDefs.map(function (def) { return def.sticky; });\n this._stickyStyler.stickRows(headerRows, stickyStates, 'top');\n // Reset the dirty state of the sticky input change since it has been used.\n this._headerRowDefs.forEach(function (def) { return def.resetStickyChanged(); });\n };\n /**\n * Updates the footer sticky styles. First resets all applied styles with respect to the cells\n * sticking to the bottom. Then, evaluating which cells need to be stuck to the bottom. This is\n * automatically called when the footer row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n */\n /**\n * Updates the footer sticky styles. First resets all applied styles with respect to the cells\n * sticking to the bottom. Then, evaluating which cells need to be stuck to the bottom. This is\n * automatically called when the footer row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n * @return {?}\n */\n CdkTable.prototype.updateStickyFooterRowStyles = /**\n * Updates the footer sticky styles. First resets all applied styles with respect to the cells\n * sticking to the bottom. Then, evaluating which cells need to be stuck to the bottom. This is\n * automatically called when the footer row changes its displayed set of columns, or if its\n * sticky input changes. May be called manually for cases where the cell content changes outside\n * of these events.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var footerRows = this._getRenderedRows(this._footerRowOutlet);\n this._stickyStyler.clearStickyPositioning(footerRows, ['bottom']);\n /** @type {?} */\n var stickyStates = this._footerRowDefs.map(function (def) { return def.sticky; });\n this._stickyStyler.stickRows(footerRows, stickyStates, 'bottom');\n this._stickyStyler.updateStickyFooterContainer(this._elementRef.nativeElement, stickyStates);\n // Reset the dirty state of the sticky input change since it has been used.\n this._footerRowDefs.forEach(function (def) { return def.resetStickyChanged(); });\n };\n /**\n * Updates the column sticky styles. First resets all applied styles with respect to the cells\n * sticking to the left and right. Then sticky styles are added for the left and right according\n * to the column definitions for each cell in each row. This is automatically called when\n * the data source provides a new set of data or when a column definition changes its sticky\n * input. May be called manually for cases where the cell content changes outside of these events.\n */\n /**\n * Updates the column sticky styles. First resets all applied styles with respect to the cells\n * sticking to the left and right. Then sticky styles are added for the left and right according\n * to the column definitions for each cell in each row. This is automatically called when\n * the data source provides a new set of data or when a column definition changes its sticky\n * input. May be called manually for cases where the cell content changes outside of these events.\n * @return {?}\n */\n CdkTable.prototype.updateStickyColumnStyles = /**\n * Updates the column sticky styles. First resets all applied styles with respect to the cells\n * sticking to the left and right. Then sticky styles are added for the left and right according\n * to the column definitions for each cell in each row. This is automatically called when\n * the data source provides a new set of data or when a column definition changes its sticky\n * input. May be called manually for cases where the cell content changes outside of these events.\n * @return {?}\n */\n function () {\n var _this = this;\n /** @type {?} */\n var headerRows = this._getRenderedRows(this._headerRowOutlet);\n /** @type {?} */\n var dataRows = this._getRenderedRows(this._rowOutlet);\n /** @type {?} */\n var footerRows = this._getRenderedRows(this._footerRowOutlet);\n // Clear the left and right positioning from all columns in the table across all rows since\n // sticky columns span across all table sections (header, data, footer)\n this._stickyStyler.clearStickyPositioning(headerRows.concat(dataRows, footerRows), ['left', 'right']);\n // Update the sticky styles for each header row depending on the def's sticky state\n headerRows.forEach(function (headerRow, i) {\n _this._addStickyColumnStyles([headerRow], _this._headerRowDefs[i]);\n });\n // Update the sticky styles for each data row depending on its def's sticky state\n this._rowDefs.forEach(function (rowDef) {\n // Collect all the rows rendered with this row definition.\n /** @type {?} */\n var rows = [];\n for (var i = 0; i < dataRows.length; i++) {\n if (_this._renderRows[i].rowDef === rowDef) {\n rows.push(dataRows[i]);\n }\n }\n _this._addStickyColumnStyles(rows, rowDef);\n });\n // Update the sticky styles for each footer row depending on the def's sticky state\n footerRows.forEach(function (footerRow, i) {\n _this._addStickyColumnStyles([footerRow], _this._footerRowDefs[i]);\n });\n // Reset the dirty state of the sticky input change since it has been used.\n Array.from(this._columnDefsByName.values()).forEach(function (def) { return def.resetStickyChanged(); });\n };\n /**\n * Get the list of RenderRow objects to render according to the current list of data and defined\n * row definitions. If the previous list already contained a particular pair, it should be reused\n * so that the differ equates their references.\n */\n /**\n * Get the list of RenderRow objects to render according to the current list of data and defined\n * row definitions. If the previous list already contained a particular pair, it should be reused\n * so that the differ equates their references.\n * @private\n * @return {?}\n */\n CdkTable.prototype._getAllRenderRows = /**\n * Get the list of RenderRow objects to render according to the current list of data and defined\n * row definitions. If the previous list already contained a particular pair, it should be reused\n * so that the differ equates their references.\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var renderRows = [];\n // Store the cache and create a new one. Any re-used RenderRow objects will be moved into the\n // new cache while unused ones can be picked up by garbage collection.\n /** @type {?} */\n var prevCachedRenderRows = this._cachedRenderRowsMap;\n this._cachedRenderRowsMap = new Map();\n // For each data object, get the list of rows that should be rendered, represented by the\n // respective `RenderRow` object which is the pair of `data` and `CdkRowDef`.\n for (var i = 0; i < this._data.length; i++) {\n /** @type {?} */\n var data = this._data[i];\n /** @type {?} */\n var renderRowsForData = this._getRenderRowsForData(data, i, prevCachedRenderRows.get(data));\n if (!this._cachedRenderRowsMap.has(data)) {\n this._cachedRenderRowsMap.set(data, new WeakMap());\n }\n for (var j = 0; j < renderRowsForData.length; j++) {\n /** @type {?} */\n var renderRow = renderRowsForData[j];\n /** @type {?} */\n var cache = (/** @type {?} */ (this._cachedRenderRowsMap.get(renderRow.data)));\n if (cache.has(renderRow.rowDef)) {\n (/** @type {?} */ (cache.get(renderRow.rowDef))).push(renderRow);\n }\n else {\n cache.set(renderRow.rowDef, [renderRow]);\n }\n renderRows.push(renderRow);\n }\n }\n return renderRows;\n };\n /**\n * Gets a list of `RenderRow` for the provided data object and any `CdkRowDef` objects that\n * should be rendered for this data. Reuses the cached RenderRow objects if they match the same\n * `(T, CdkRowDef)` pair.\n */\n /**\n * Gets a list of `RenderRow` for the provided data object and any `CdkRowDef` objects that\n * should be rendered for this data. Reuses the cached RenderRow objects if they match the same\n * `(T, CdkRowDef)` pair.\n * @private\n * @param {?} data\n * @param {?} dataIndex\n * @param {?=} cache\n * @return {?}\n */\n CdkTable.prototype._getRenderRowsForData = /**\n * Gets a list of `RenderRow` for the provided data object and any `CdkRowDef` objects that\n * should be rendered for this data. Reuses the cached RenderRow objects if they match the same\n * `(T, CdkRowDef)` pair.\n * @private\n * @param {?} data\n * @param {?} dataIndex\n * @param {?=} cache\n * @return {?}\n */\n function (data, dataIndex, cache) {\n /** @type {?} */\n var rowDefs = this._getRowDefs(data, dataIndex);\n return rowDefs.map(function (rowDef) {\n /** @type {?} */\n var cachedRenderRows = (cache && cache.has(rowDef)) ? (/** @type {?} */ (cache.get(rowDef))) : [];\n if (cachedRenderRows.length) {\n /** @type {?} */\n var dataRow = (/** @type {?} */ (cachedRenderRows.shift()));\n dataRow.dataIndex = dataIndex;\n return dataRow;\n }\n else {\n return { data: data, rowDef: rowDef, dataIndex: dataIndex };\n }\n });\n };\n /** Update the map containing the content's column definitions. */\n /**\n * Update the map containing the content's column definitions.\n * @private\n * @return {?}\n */\n CdkTable.prototype._cacheColumnDefs = /**\n * Update the map containing the content's column definitions.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n this._columnDefsByName.clear();\n /** @type {?} */\n var columnDefs = mergeQueryListAndSet(this._contentColumnDefs, this._customColumnDefs);\n columnDefs.forEach(function (columnDef) {\n if (_this._columnDefsByName.has(columnDef.name)) {\n throw getTableDuplicateColumnNameError(columnDef.name);\n }\n _this._columnDefsByName.set(columnDef.name, columnDef);\n });\n };\n /** Update the list of all available row definitions that can be used. */\n /**\n * Update the list of all available row definitions that can be used.\n * @private\n * @return {?}\n */\n CdkTable.prototype._cacheRowDefs = /**\n * Update the list of all available row definitions that can be used.\n * @private\n * @return {?}\n */\n function () {\n this._headerRowDefs =\n mergeQueryListAndSet(this._contentHeaderRowDefs, this._customHeaderRowDefs);\n this._footerRowDefs =\n mergeQueryListAndSet(this._contentFooterRowDefs, this._customFooterRowDefs);\n this._rowDefs =\n mergeQueryListAndSet(this._contentRowDefs, this._customRowDefs);\n // After all row definitions are determined, find the row definition to be considered default.\n /** @type {?} */\n var defaultRowDefs = this._rowDefs.filter(function (def) { return !def.when; });\n if (!this.multiTemplateDataRows && defaultRowDefs.length > 1) {\n throw getTableMultipleDefaultRowDefsError();\n }\n this._defaultRowDef = defaultRowDefs[0];\n };\n /**\n * Check if the header, data, or footer rows have changed what columns they want to display or\n * whether the sticky states have changed for the header or footer. If there is a diff, then\n * re-render that section.\n */\n /**\n * Check if the header, data, or footer rows have changed what columns they want to display or\n * whether the sticky states have changed for the header or footer. If there is a diff, then\n * re-render that section.\n * @private\n * @return {?}\n */\n CdkTable.prototype._renderUpdatedColumns = /**\n * Check if the header, data, or footer rows have changed what columns they want to display or\n * whether the sticky states have changed for the header or footer. If there is a diff, then\n * re-render that section.\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var columnsDiffReducer = function (acc, def) { return acc || !!def.getColumnsDiff(); };\n // Force re-render data rows if the list of column definitions have changed.\n if (this._rowDefs.reduce(columnsDiffReducer, false)) {\n this._forceRenderDataRows();\n }\n // Force re-render header/footer rows if the list of column definitions have changed..\n if (this._headerRowDefs.reduce(columnsDiffReducer, false)) {\n this._forceRenderHeaderRows();\n }\n if (this._footerRowDefs.reduce(columnsDiffReducer, false)) {\n this._forceRenderFooterRows();\n }\n };\n /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the row outlet. Otherwise start listening for new data.\n */\n /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the row outlet. Otherwise start listening for new data.\n * @private\n * @param {?} dataSource\n * @return {?}\n */\n CdkTable.prototype._switchDataSource = /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the row outlet. Otherwise start listening for new data.\n * @private\n * @param {?} dataSource\n * @return {?}\n */\n function (dataSource) {\n this._data = [];\n if (this.dataSource instanceof DataSource) {\n this.dataSource.disconnect(this);\n }\n // Stop listening for data from the previous data source.\n if (this._renderChangeSubscription) {\n this._renderChangeSubscription.unsubscribe();\n this._renderChangeSubscription = null;\n }\n if (!dataSource) {\n if (this._dataDiffer) {\n this._dataDiffer.diff([]);\n }\n this._rowOutlet.viewContainer.clear();\n }\n this._dataSource = dataSource;\n };\n /** Set up a subscription for the data provided by the data source. */\n /**\n * Set up a subscription for the data provided by the data source.\n * @private\n * @return {?}\n */\n CdkTable.prototype._observeRenderChanges = /**\n * Set up a subscription for the data provided by the data source.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n // If no data source has been set, there is nothing to observe for changes.\n if (!this.dataSource) {\n return;\n }\n /** @type {?} */\n var dataStream;\n // Check if the datasource is a DataSource object by observing if it has a connect function.\n // Cannot check this.dataSource['connect'] due to potential property renaming, nor can it\n // checked as an instanceof DataSource since the table should allow for data sources\n // that did not explicitly extend DataSource.\n if (((/** @type {?} */ (this.dataSource))).connect instanceof Function) {\n dataStream = ((/** @type {?} */ (this.dataSource))).connect(this);\n }\n else if (this.dataSource instanceof Observable) {\n dataStream = this.dataSource;\n }\n else if (Array.isArray(this.dataSource)) {\n dataStream = of(this.dataSource);\n }\n if (dataStream === undefined) {\n throw getTableUnknownDataSourceError();\n }\n this._renderChangeSubscription = dataStream\n .pipe(takeUntil(this._onDestroy))\n .subscribe(function (data) {\n _this._data = data || [];\n _this.renderRows();\n });\n };\n /**\n * Clears any existing content in the header row outlet and creates a new embedded view\n * in the outlet using the header row definition.\n */\n /**\n * Clears any existing content in the header row outlet and creates a new embedded view\n * in the outlet using the header row definition.\n * @private\n * @return {?}\n */\n CdkTable.prototype._forceRenderHeaderRows = /**\n * Clears any existing content in the header row outlet and creates a new embedded view\n * in the outlet using the header row definition.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n // Clear the header row outlet if any content exists.\n if (this._headerRowOutlet.viewContainer.length > 0) {\n this._headerRowOutlet.viewContainer.clear();\n }\n this._headerRowDefs.forEach(function (def, i) { return _this._renderRow(_this._headerRowOutlet, def, i); });\n this.updateStickyHeaderRowStyles();\n this.updateStickyColumnStyles();\n };\n /**\n * Clears any existing content in the footer row outlet and creates a new embedded view\n * in the outlet using the footer row definition.\n */\n /**\n * Clears any existing content in the footer row outlet and creates a new embedded view\n * in the outlet using the footer row definition.\n * @private\n * @return {?}\n */\n CdkTable.prototype._forceRenderFooterRows = /**\n * Clears any existing content in the footer row outlet and creates a new embedded view\n * in the outlet using the footer row definition.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n // Clear the footer row outlet if any content exists.\n if (this._footerRowOutlet.viewContainer.length > 0) {\n this._footerRowOutlet.viewContainer.clear();\n }\n this._footerRowDefs.forEach(function (def, i) { return _this._renderRow(_this._footerRowOutlet, def, i); });\n this.updateStickyFooterRowStyles();\n this.updateStickyColumnStyles();\n };\n /** Adds the sticky column styles for the rows according to the columns' stick states. */\n /**\n * Adds the sticky column styles for the rows according to the columns' stick states.\n * @private\n * @param {?} rows\n * @param {?} rowDef\n * @return {?}\n */\n CdkTable.prototype._addStickyColumnStyles = /**\n * Adds the sticky column styles for the rows according to the columns' stick states.\n * @private\n * @param {?} rows\n * @param {?} rowDef\n * @return {?}\n */\n function (rows, rowDef) {\n var _this = this;\n /** @type {?} */\n var columnDefs = Array.from(rowDef.columns || []).map(function (c) { return (/** @type {?} */ (_this._columnDefsByName.get(c))); });\n /** @type {?} */\n var stickyStartStates = columnDefs.map(function (columnDef) { return columnDef.sticky; });\n /** @type {?} */\n var stickyEndStates = columnDefs.map(function (columnDef) { return columnDef.stickyEnd; });\n this._stickyStyler.updateStickyColumns(rows, stickyStartStates, stickyEndStates);\n };\n /** Gets the list of rows that have been rendered in the row outlet. */\n /**\n * Gets the list of rows that have been rendered in the row outlet.\n * @param {?} rowOutlet\n * @return {?}\n */\n CdkTable.prototype._getRenderedRows = /**\n * Gets the list of rows that have been rendered in the row outlet.\n * @param {?} rowOutlet\n * @return {?}\n */\n function (rowOutlet) {\n /** @type {?} */\n var renderedRows = [];\n for (var i = 0; i < rowOutlet.viewContainer.length; i++) {\n /** @type {?} */\n var viewRef = ((/** @type {?} */ ((/** @type {?} */ (rowOutlet.viewContainer.get(i))))));\n renderedRows.push(viewRef.rootNodes[0]);\n }\n return renderedRows;\n };\n /**\n * Get the matching row definitions that should be used for this row data. If there is only\n * one row definition, it is returned. Otherwise, find the row definitions that has a when\n * predicate that returns true with the data. If none return true, return the default row\n * definition.\n */\n /**\n * Get the matching row definitions that should be used for this row data. If there is only\n * one row definition, it is returned. Otherwise, find the row definitions that has a when\n * predicate that returns true with the data. If none return true, return the default row\n * definition.\n * @param {?} data\n * @param {?} dataIndex\n * @return {?}\n */\n CdkTable.prototype._getRowDefs = /**\n * Get the matching row definitions that should be used for this row data. If there is only\n * one row definition, it is returned. Otherwise, find the row definitions that has a when\n * predicate that returns true with the data. If none return true, return the default row\n * definition.\n * @param {?} data\n * @param {?} dataIndex\n * @return {?}\n */\n function (data, dataIndex) {\n if (this._rowDefs.length == 1) {\n return [this._rowDefs[0]];\n }\n /** @type {?} */\n var rowDefs = [];\n if (this.multiTemplateDataRows) {\n rowDefs = this._rowDefs.filter(function (def) { return !def.when || def.when(dataIndex, data); });\n }\n else {\n /** @type {?} */\n var rowDef = this._rowDefs.find(function (def) { return def.when && def.when(dataIndex, data); }) || this._defaultRowDef;\n if (rowDef) {\n rowDefs.push(rowDef);\n }\n }\n if (!rowDefs.length) {\n throw getTableMissingMatchingRowDefError(data);\n }\n return rowDefs;\n };\n /**\n * Create the embedded view for the data row template and place it in the correct index location\n * within the data row view container.\n */\n /**\n * Create the embedded view for the data row template and place it in the correct index location\n * within the data row view container.\n * @private\n * @param {?} renderRow\n * @param {?} renderIndex\n * @return {?}\n */\n CdkTable.prototype._insertRow = /**\n * Create the embedded view for the data row template and place it in the correct index location\n * within the data row view container.\n * @private\n * @param {?} renderRow\n * @param {?} renderIndex\n * @return {?}\n */\n function (renderRow, renderIndex) {\n /** @type {?} */\n var rowDef = renderRow.rowDef;\n /** @type {?} */\n var context = { $implicit: renderRow.data };\n this._renderRow(this._rowOutlet, rowDef, renderIndex, context);\n };\n /**\n * Creates a new row template in the outlet and fills it with the set of cell templates.\n * Optionally takes a context to provide to the row and cells, as well as an optional index\n * of where to place the new row template in the outlet.\n */\n /**\n * Creates a new row template in the outlet and fills it with the set of cell templates.\n * Optionally takes a context to provide to the row and cells, as well as an optional index\n * of where to place the new row template in the outlet.\n * @private\n * @param {?} outlet\n * @param {?} rowDef\n * @param {?} index\n * @param {?=} context\n * @return {?}\n */\n CdkTable.prototype._renderRow = /**\n * Creates a new row template in the outlet and fills it with the set of cell templates.\n * Optionally takes a context to provide to the row and cells, as well as an optional index\n * of where to place the new row template in the outlet.\n * @private\n * @param {?} outlet\n * @param {?} rowDef\n * @param {?} index\n * @param {?=} context\n * @return {?}\n */\n function (outlet, rowDef, index, context) {\n if (context === void 0) { context = {}; }\n // TODO(andrewseguin): enforce that one outlet was instantiated from createEmbeddedView\n outlet.viewContainer.createEmbeddedView(rowDef.template, context, index);\n for (var _a = 0, _b = this._getCellTemplates(rowDef); _a < _b.length; _a++) {\n var cellTemplate = _b[_a];\n if (CdkCellOutlet.mostRecentCellOutlet) {\n CdkCellOutlet.mostRecentCellOutlet._viewContainer.createEmbeddedView(cellTemplate, context);\n }\n }\n this._changeDetectorRef.markForCheck();\n };\n /**\n * Updates the index-related context for each row to reflect any changes in the index of the rows,\n * e.g. first/last/even/odd.\n */\n /**\n * Updates the index-related context for each row to reflect any changes in the index of the rows,\n * e.g. first/last/even/odd.\n * @private\n * @return {?}\n */\n CdkTable.prototype._updateRowIndexContext = /**\n * Updates the index-related context for each row to reflect any changes in the index of the rows,\n * e.g. first/last/even/odd.\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var viewContainer = this._rowOutlet.viewContainer;\n for (var renderIndex = 0, count = viewContainer.length; renderIndex < count; renderIndex++) {\n /** @type {?} */\n var viewRef = (/** @type {?} */ (viewContainer.get(renderIndex)));\n /** @type {?} */\n var context = (/** @type {?} */ (viewRef.context));\n context.count = count;\n context.first = renderIndex === 0;\n context.last = renderIndex === count - 1;\n context.even = renderIndex % 2 === 0;\n context.odd = !context.even;\n if (this.multiTemplateDataRows) {\n context.dataIndex = this._renderRows[renderIndex].dataIndex;\n context.renderIndex = renderIndex;\n }\n else {\n context.index = this._renderRows[renderIndex].dataIndex;\n }\n }\n };\n /** Gets the column definitions for the provided row def. */\n /**\n * Gets the column definitions for the provided row def.\n * @private\n * @param {?} rowDef\n * @return {?}\n */\n CdkTable.prototype._getCellTemplates = /**\n * Gets the column definitions for the provided row def.\n * @private\n * @param {?} rowDef\n * @return {?}\n */\n function (rowDef) {\n var _this = this;\n if (!rowDef || !rowDef.columns) {\n return [];\n }\n return Array.from(rowDef.columns, function (columnId) {\n /** @type {?} */\n var column = _this._columnDefsByName.get(columnId);\n if (!column) {\n throw getTableUnknownColumnError(columnId);\n }\n return rowDef.extractCellTemplate(column);\n });\n };\n /** Adds native table sections (e.g. tbody) and moves the row outlets into them. */\n /**\n * Adds native table sections (e.g. tbody) and moves the row outlets into them.\n * @private\n * @return {?}\n */\n CdkTable.prototype._applyNativeTableSections = /**\n * Adds native table sections (e.g. tbody) and moves the row outlets into them.\n * @private\n * @return {?}\n */\n function () {\n // @breaking-change 8.0.0 remove the `|| document` once the `_document` is a required param.\n /** @type {?} */\n var documentRef = this._document || document;\n /** @type {?} */\n var documentFragment = documentRef.createDocumentFragment();\n /** @type {?} */\n var sections = [\n { tag: 'thead', outlet: this._headerRowOutlet },\n { tag: 'tbody', outlet: this._rowOutlet },\n { tag: 'tfoot', outlet: this._footerRowOutlet },\n ];\n for (var _a = 0, sections_1 = sections; _a < sections_1.length; _a++) {\n var section = sections_1[_a];\n /** @type {?} */\n var element = documentRef.createElement(section.tag);\n element.appendChild(section.outlet.elementRef.nativeElement);\n documentFragment.appendChild(element);\n }\n // Use a DocumentFragment so we don't hit the DOM on each iteration.\n this._elementRef.nativeElement.appendChild(documentFragment);\n };\n /**\n * Forces a re-render of the data rows. Should be called in cases where there has been an input\n * change that affects the evaluation of which rows should be rendered, e.g. toggling\n * `multiTemplateDataRows` or adding/removing row definitions.\n */\n /**\n * Forces a re-render of the data rows. Should be called in cases where there has been an input\n * change that affects the evaluation of which rows should be rendered, e.g. toggling\n * `multiTemplateDataRows` or adding/removing row definitions.\n * @private\n * @return {?}\n */\n CdkTable.prototype._forceRenderDataRows = /**\n * Forces a re-render of the data rows. Should be called in cases where there has been an input\n * change that affects the evaluation of which rows should be rendered, e.g. toggling\n * `multiTemplateDataRows` or adding/removing row definitions.\n * @private\n * @return {?}\n */\n function () {\n this._dataDiffer.diff([]);\n this._rowOutlet.viewContainer.clear();\n this.renderRows();\n this.updateStickyColumnStyles();\n };\n /**\n * Checks if there has been a change in sticky states since last check and applies the correct\n * sticky styles. Since checking resets the \"dirty\" state, this should only be performed once\n * during a change detection and after the inputs are settled (after content check).\n */\n /**\n * Checks if there has been a change in sticky states since last check and applies the correct\n * sticky styles. Since checking resets the \"dirty\" state, this should only be performed once\n * during a change detection and after the inputs are settled (after content check).\n * @private\n * @return {?}\n */\n CdkTable.prototype._checkStickyStates = /**\n * Checks if there has been a change in sticky states since last check and applies the correct\n * sticky styles. Since checking resets the \"dirty\" state, this should only be performed once\n * during a change detection and after the inputs are settled (after content check).\n * @private\n * @return {?}\n */\n function () {\n /** @type {?} */\n var stickyCheckReducer = function (acc, d) {\n return acc || d.hasStickyChanged();\n };\n // Note that the check needs to occur for every definition since it notifies the definition\n // that it can reset its dirty state. Using another operator like `some` may short-circuit\n // remaining definitions and leave them in an unchecked state.\n if (this._headerRowDefs.reduce(stickyCheckReducer, false)) {\n this.updateStickyHeaderRowStyles();\n }\n if (this._footerRowDefs.reduce(stickyCheckReducer, false)) {\n this.updateStickyFooterRowStyles();\n }\n if (Array.from(this._columnDefsByName.values()).reduce(stickyCheckReducer, false)) {\n this.updateStickyColumnStyles();\n }\n };\n /**\n * Creates the sticky styler that will be used for sticky rows and columns. Listens\n * for directionality changes and provides the latest direction to the styler. Re-applies column\n * stickiness when directionality changes.\n */\n /**\n * Creates the sticky styler that will be used for sticky rows and columns. Listens\n * for directionality changes and provides the latest direction to the styler. Re-applies column\n * stickiness when directionality changes.\n * @private\n * @return {?}\n */\n CdkTable.prototype._setupStickyStyler = /**\n * Creates the sticky styler that will be used for sticky rows and columns. Listens\n * for directionality changes and provides the latest direction to the styler. Re-applies column\n * stickiness when directionality changes.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n /** @type {?} */\n var direction = this._dir ? this._dir.value : 'ltr';\n this._stickyStyler = new StickyStyler(this._isNativeHtmlTable, \n // @breaking-change 8.0.0 remove the null check for `this._platform`.\n this.stickyCssClass, direction, this._platform ? this._platform.isBrowser : true);\n (this._dir ? this._dir.change : of())\n .pipe(takeUntil(this._onDestroy))\n .subscribe(function (value) {\n _this._stickyStyler.direction = value;\n _this.updateStickyColumnStyles();\n });\n };\n CdkTable.decorators = [\n { type: Component, args: [{selector: 'cdk-table, table[cdk-table]',\n exportAs: 'cdkTable',\n template: CDK_TABLE_TEMPLATE,\n host: {\n 'class': 'cdk-table',\n },\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n },] },\n ];\n /** @nocollapse */\n CdkTable.ctorParameters = function () { return [\n { type: IterableDiffers },\n { type: ChangeDetectorRef },\n { type: ElementRef },\n { type: String, decorators: [{ type: Attribute, args: ['role',] }] },\n { type: Directionality, decorators: [{ type: Optional }] },\n { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n { type: Platform }\n ]; };\n CdkTable.propDecorators = {\n trackBy: [{ type: Input }],\n dataSource: [{ type: Input }],\n multiTemplateDataRows: [{ type: Input }],\n _rowOutlet: [{ type: ViewChild, args: [DataRowOutlet,] }],\n _headerRowOutlet: [{ type: ViewChild, args: [HeaderRowOutlet,] }],\n _footerRowOutlet: [{ type: ViewChild, args: [FooterRowOutlet,] }],\n _contentColumnDefs: [{ type: ContentChildren, args: [CdkColumnDef,] }],\n _contentRowDefs: [{ type: ContentChildren, args: [CdkRowDef,] }],\n _contentHeaderRowDefs: [{ type: ContentChildren, args: [CdkHeaderRowDef,] }],\n _contentFooterRowDefs: [{ type: ContentChildren, args: [CdkFooterRowDef,] }]\n };\n return CdkTable;\n}());\n/**\n * Utility function that gets a merged list of the entries in a QueryList and values of a Set.\n * @template T\n * @param {?} queryList\n * @param {?} set\n * @return {?}\n */\nfunction mergeQueryListAndSet(queryList, set) {\n return queryList.toArray().concat(Array.from(set));\n}\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nvar EXPORTED_DECLARATIONS = [\n CdkTable,\n CdkRowDef,\n CdkCellDef,\n CdkCellOutlet,\n CdkHeaderCellDef,\n CdkFooterCellDef,\n CdkColumnDef,\n CdkCell,\n CdkRow,\n CdkHeaderCell,\n CdkFooterCell,\n CdkHeaderRow,\n CdkHeaderRowDef,\n CdkFooterRow,\n CdkFooterRowDef,\n DataRowOutlet,\n HeaderRowOutlet,\n FooterRowOutlet,\n];\nvar CdkTableModule = /** @class */ (function () {\n function CdkTableModule() {\n }\n CdkTableModule.decorators = [\n { type: NgModule, args: [{\n imports: [CommonModule],\n exports: EXPORTED_DECLARATIONS,\n declarations: EXPORTED_DECLARATIONS\n },] },\n ];\n return CdkTableModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { DataRowOutlet, HeaderRowOutlet, FooterRowOutlet, CDK_TABLE_TEMPLATE, CdkTable, CdkCellDef, CdkHeaderCellDef, CdkFooterCellDef, CdkColumnDefBase, _CdkColumnDefBase, CdkColumnDef, BaseCdkCell, CdkHeaderCell, CdkFooterCell, CdkCell, CDK_ROW_TEMPLATE, BaseRowDef, CdkHeaderRowDefBase, _CdkHeaderRowDefBase, CdkHeaderRowDef, CdkFooterRowDefBase, _CdkFooterRowDefBase, CdkFooterRowDef, CdkRowDef, CdkCellOutlet, CdkHeaderRow, CdkFooterRow, CdkRow, CdkTableModule, STICKY_DIRECTIONS, StickyStyler, mixinHasStickyInput };\n//# sourceMappingURL=table.es5.js.map\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Platform, normalizePassiveListenerOptions, PlatformModule } from '@angular/cdk/platform';\nimport { Directive, ElementRef, EventEmitter, Injectable, NgZone, Output, Input, NgModule, defineInjectable, inject } from '@angular/core';\nimport { coerceElement, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { EMPTY, Subject, fromEvent } from 'rxjs';\nimport { auditTime, takeUntil } from 'rxjs/operators';\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Options to pass to the animationstart listener.\n * @type {?}\n */\nvar listenerOptions = normalizePassiveListenerOptions({ passive: true });\n/**\n * An injectable service that can be used to monitor the autofill state of an input.\n * Based on the following blog post:\n * https://medium.com/\\@brunn/detecting-autofilled-fields-in-javascript-aed598d25da7\n */\nvar AutofillMonitor = /** @class */ (function () {\n function AutofillMonitor(_platform, _ngZone) {\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._monitoredElements = new Map();\n }\n /**\n * @param {?} elementOrRef\n * @return {?}\n */\n AutofillMonitor.prototype.monitor = /**\n * @param {?} elementOrRef\n * @return {?}\n */\n function (elementOrRef) {\n var _this = this;\n if (!this._platform.isBrowser) {\n return EMPTY;\n }\n /** @type {?} */\n var element = coerceElement(elementOrRef);\n /** @type {?} */\n var info = this._monitoredElements.get(element);\n if (info) {\n return info.subject.asObservable();\n }\n /** @type {?} */\n var result = new Subject();\n /** @type {?} */\n var cssClass = 'cdk-text-field-autofilled';\n /** @type {?} */\n var listener = (/** @type {?} */ ((function (event) {\n // Animation events fire on initial element render, we check for the presence of the autofill\n // CSS class to make sure this is a real change in state, not just the initial render before\n // we fire off events.\n if (event.animationName === 'cdk-text-field-autofill-start' &&\n !element.classList.contains(cssClass)) {\n element.classList.add(cssClass);\n _this._ngZone.run(function () { return result.next({ target: (/** @type {?} */ (event.target)), isAutofilled: true }); });\n }\n else if (event.animationName === 'cdk-text-field-autofill-end' &&\n element.classList.contains(cssClass)) {\n element.classList.remove(cssClass);\n _this._ngZone.run(function () { return result.next({ target: (/** @type {?} */ (event.target)), isAutofilled: false }); });\n }\n })));\n this._ngZone.runOutsideAngular(function () {\n element.addEventListener('animationstart', listener, listenerOptions);\n element.classList.add('cdk-text-field-autofill-monitored');\n });\n this._monitoredElements.set(element, {\n subject: result,\n unlisten: function () {\n element.removeEventListener('animationstart', listener, listenerOptions);\n }\n });\n return result.asObservable();\n };\n /**\n * @param {?} elementOrRef\n * @return {?}\n */\n AutofillMonitor.prototype.stopMonitoring = /**\n * @param {?} elementOrRef\n * @return {?}\n */\n function (elementOrRef) {\n /** @type {?} */\n var element = coerceElement(elementOrRef);\n /** @type {?} */\n var info = this._monitoredElements.get(element);\n if (info) {\n info.unlisten();\n info.subject.complete();\n element.classList.remove('cdk-text-field-autofill-monitored');\n element.classList.remove('cdk-text-field-autofilled');\n this._monitoredElements.delete(element);\n }\n };\n /**\n * @return {?}\n */\n AutofillMonitor.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n var _this = this;\n this._monitoredElements.forEach(function (_info, element) { return _this.stopMonitoring(element); });\n };\n AutofillMonitor.decorators = [\n { type: Injectable, args: [{ providedIn: 'root' },] },\n ];\n /** @nocollapse */\n AutofillMonitor.ctorParameters = function () { return [\n { type: Platform },\n { type: NgZone }\n ]; };\n /** @nocollapse */ AutofillMonitor.ngInjectableDef = defineInjectable({ factory: function AutofillMonitor_Factory() { return new AutofillMonitor(inject(Platform), inject(NgZone)); }, token: AutofillMonitor, providedIn: \"root\" });\n return AutofillMonitor;\n}());\n/**\n * A directive that can be used to monitor the autofill state of an input.\n */\nvar CdkAutofill = /** @class */ (function () {\n function CdkAutofill(_elementRef, _autofillMonitor) {\n this._elementRef = _elementRef;\n this._autofillMonitor = _autofillMonitor;\n /**\n * Emits when the autofill state of the element changes.\n */\n this.cdkAutofill = new EventEmitter();\n }\n /**\n * @return {?}\n */\n CdkAutofill.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n this._autofillMonitor\n .monitor(this._elementRef)\n .subscribe(function (event) { return _this.cdkAutofill.emit(event); });\n };\n /**\n * @return {?}\n */\n CdkAutofill.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._autofillMonitor.stopMonitoring(this._elementRef);\n };\n CdkAutofill.decorators = [\n { type: Directive, args: [{\n selector: '[cdkAutofill]',\n },] },\n ];\n /** @nocollapse */\n CdkAutofill.ctorParameters = function () { return [\n { type: ElementRef },\n { type: AutofillMonitor }\n ]; };\n CdkAutofill.propDecorators = {\n cdkAutofill: [{ type: Output }]\n };\n return CdkAutofill;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Directive to automatically resize a textarea to fit its content.\n */\nvar CdkTextareaAutosize = /** @class */ (function () {\n function CdkTextareaAutosize(_elementRef, _platform, _ngZone) {\n this._elementRef = _elementRef;\n this._platform = _platform;\n this._ngZone = _ngZone;\n this._destroyed = new Subject();\n this._enabled = true;\n /**\n * Value of minRows as of last resize. If the minRows has decreased, the\n * height of the textarea needs to be recomputed to reflect the new minimum. The maxHeight\n * does not have the same problem because it does not affect the textarea's scrollHeight.\n */\n this._previousMinRows = -1;\n this._textareaElement = (/** @type {?} */ (this._elementRef.nativeElement));\n }\n Object.defineProperty(CdkTextareaAutosize.prototype, \"minRows\", {\n /** Minimum amount of rows in the textarea. */\n get: /**\n * Minimum amount of rows in the textarea.\n * @return {?}\n */\n function () { return this._minRows; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._minRows = value;\n this._setMinHeight();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTextareaAutosize.prototype, \"maxRows\", {\n /** Maximum amount of rows in the textarea. */\n get: /**\n * Maximum amount of rows in the textarea.\n * @return {?}\n */\n function () { return this._maxRows; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._maxRows = value;\n this._setMaxHeight();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTextareaAutosize.prototype, \"enabled\", {\n /** Whether autosizing is enabled or not */\n get: /**\n * Whether autosizing is enabled or not\n * @return {?}\n */\n function () { return this._enabled; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n value = coerceBooleanProperty(value);\n // Only act if the actual value changed. This specifically helps to not run\n // resizeToFitContent too early (i.e. before ngAfterViewInit)\n if (this._enabled !== value) {\n (this._enabled = value) ? this.resizeToFitContent(true) : this.reset();\n }\n },\n enumerable: true,\n configurable: true\n });\n /** Sets the minimum height of the textarea as determined by minRows. */\n /**\n * Sets the minimum height of the textarea as determined by minRows.\n * @return {?}\n */\n CdkTextareaAutosize.prototype._setMinHeight = /**\n * Sets the minimum height of the textarea as determined by minRows.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var minHeight = this.minRows && this._cachedLineHeight ?\n this.minRows * this._cachedLineHeight + \"px\" : null;\n if (minHeight) {\n this._textareaElement.style.minHeight = minHeight;\n }\n };\n /** Sets the maximum height of the textarea as determined by maxRows. */\n /**\n * Sets the maximum height of the textarea as determined by maxRows.\n * @return {?}\n */\n CdkTextareaAutosize.prototype._setMaxHeight = /**\n * Sets the maximum height of the textarea as determined by maxRows.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var maxHeight = this.maxRows && this._cachedLineHeight ?\n this.maxRows * this._cachedLineHeight + \"px\" : null;\n if (maxHeight) {\n this._textareaElement.style.maxHeight = maxHeight;\n }\n };\n /**\n * @return {?}\n */\n CdkTextareaAutosize.prototype.ngAfterViewInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n if (this._platform.isBrowser) {\n // Remember the height which we started with in case autosizing is disabled\n this._initialHeight = this._textareaElement.style.height;\n this.resizeToFitContent();\n this._ngZone.runOutsideAngular(function () {\n fromEvent(window, 'resize')\n .pipe(auditTime(16), takeUntil(_this._destroyed))\n .subscribe(function () { return _this.resizeToFitContent(true); });\n });\n }\n };\n /**\n * @return {?}\n */\n CdkTextareaAutosize.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._destroyed.next();\n this._destroyed.complete();\n };\n /**\n * Cache the height of a single-row textarea if it has not already been cached.\n *\n * We need to know how large a single \"row\" of a textarea is in order to apply minRows and\n * maxRows. For the initial version, we will assume that the height of a single line in the\n * textarea does not ever change.\n */\n /**\n * Cache the height of a single-row textarea if it has not already been cached.\n *\n * We need to know how large a single \"row\" of a textarea is in order to apply minRows and\n * maxRows. For the initial version, we will assume that the height of a single line in the\n * textarea does not ever change.\n * @private\n * @return {?}\n */\n CdkTextareaAutosize.prototype._cacheTextareaLineHeight = /**\n * Cache the height of a single-row textarea if it has not already been cached.\n *\n * We need to know how large a single \"row\" of a textarea is in order to apply minRows and\n * maxRows. For the initial version, we will assume that the height of a single line in the\n * textarea does not ever change.\n * @private\n * @return {?}\n */\n function () {\n if (this._cachedLineHeight) {\n return;\n }\n // Use a clone element because we have to override some styles.\n /** @type {?} */\n var textareaClone = (/** @type {?} */ (this._textareaElement.cloneNode(false)));\n textareaClone.rows = 1;\n // Use `position: absolute` so that this doesn't cause a browser layout and use\n // `visibility: hidden` so that nothing is rendered. Clear any other styles that\n // would affect the height.\n textareaClone.style.position = 'absolute';\n textareaClone.style.visibility = 'hidden';\n textareaClone.style.border = 'none';\n textareaClone.style.padding = '0';\n textareaClone.style.height = '';\n textareaClone.style.minHeight = '';\n textareaClone.style.maxHeight = '';\n // In Firefox it happens that textarea elements are always bigger than the specified amount\n // of rows. This is because Firefox tries to add extra space for the horizontal scrollbar.\n // As a workaround that removes the extra space for the scrollbar, we can just set overflow\n // to hidden. This ensures that there is no invalid calculation of the line height.\n // See Firefox bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=33654\n textareaClone.style.overflow = 'hidden';\n (/** @type {?} */ (this._textareaElement.parentNode)).appendChild(textareaClone);\n this._cachedLineHeight = textareaClone.clientHeight;\n (/** @type {?} */ (this._textareaElement.parentNode)).removeChild(textareaClone);\n // Min and max heights have to be re-calculated if the cached line height changes\n this._setMinHeight();\n this._setMaxHeight();\n };\n /**\n * @return {?}\n */\n CdkTextareaAutosize.prototype.ngDoCheck = /**\n * @return {?}\n */\n function () {\n if (this._platform.isBrowser) {\n this.resizeToFitContent();\n }\n };\n /**\n * Resize the textarea to fit its content.\n * @param force Whether to force a height recalculation. By default the height will be\n * recalculated only if the value changed since the last call.\n */\n /**\n * Resize the textarea to fit its content.\n * @param {?=} force Whether to force a height recalculation. By default the height will be\n * recalculated only if the value changed since the last call.\n * @return {?}\n */\n CdkTextareaAutosize.prototype.resizeToFitContent = /**\n * Resize the textarea to fit its content.\n * @param {?=} force Whether to force a height recalculation. By default the height will be\n * recalculated only if the value changed since the last call.\n * @return {?}\n */\n function (force) {\n var _this = this;\n if (force === void 0) { force = false; }\n // If autosizing is disabled, just skip everything else\n if (!this._enabled) {\n return;\n }\n this._cacheTextareaLineHeight();\n // If we haven't determined the line-height yet, we know we're still hidden and there's no point\n // in checking the height of the textarea.\n if (!this._cachedLineHeight) {\n return;\n }\n /** @type {?} */\n var textarea = (/** @type {?} */ (this._elementRef.nativeElement));\n /** @type {?} */\n var value = textarea.value;\n // Only resize if the value or minRows have changed since these calculations can be expensive.\n if (!force && this._minRows === this._previousMinRows && value === this._previousValue) {\n return;\n }\n /** @type {?} */\n var placeholderText = textarea.placeholder;\n // Reset the textarea height to auto in order to shrink back to its default size.\n // Also temporarily force overflow:hidden, so scroll bars do not interfere with calculations.\n // Long placeholders that are wider than the textarea width may lead to a bigger scrollHeight\n // value. To ensure that the scrollHeight is not bigger than the content, the placeholders\n // need to be removed temporarily.\n textarea.classList.add('cdk-textarea-autosize-measuring');\n textarea.placeholder = '';\n // The cdk-textarea-autosize-measuring class includes a 2px padding to workaround an issue with\n // Chrome, so we account for that extra space here by subtracting 4 (2px top + 2px bottom).\n /** @type {?} */\n var height = textarea.scrollHeight - 4;\n // Use the scrollHeight to know how large the textarea *would* be if fit its entire value.\n textarea.style.height = height + \"px\";\n textarea.classList.remove('cdk-textarea-autosize-measuring');\n textarea.placeholder = placeholderText;\n this._ngZone.runOutsideAngular(function () {\n if (typeof requestAnimationFrame !== 'undefined') {\n requestAnimationFrame(function () { return _this._scrollToCaretPosition(textarea); });\n }\n else {\n setTimeout(function () { return _this._scrollToCaretPosition(textarea); });\n }\n });\n this._previousValue = value;\n this._previousMinRows = this._minRows;\n };\n /**\n * Resets the textarea to it's original size\n */\n /**\n * Resets the textarea to it's original size\n * @return {?}\n */\n CdkTextareaAutosize.prototype.reset = /**\n * Resets the textarea to it's original size\n * @return {?}\n */\n function () {\n // Do not try to change the textarea, if the initialHeight has not been determined yet\n // This might potentially remove styles when reset() is called before ngAfterViewInit\n if (this._initialHeight === undefined) {\n return;\n }\n this._textareaElement.style.height = this._initialHeight;\n };\n /**\n * @return {?}\n */\n CdkTextareaAutosize.prototype._noopInputHandler = /**\n * @return {?}\n */\n function () {\n // no-op handler that ensures we're running change detection on input events.\n };\n /**\n * Scrolls a textarea to the caret position. On Firefox resizing the textarea will\n * prevent it from scrolling to the caret position. We need to re-set the selection\n * in order for it to scroll to the proper position.\n */\n /**\n * Scrolls a textarea to the caret position. On Firefox resizing the textarea will\n * prevent it from scrolling to the caret position. We need to re-set the selection\n * in order for it to scroll to the proper position.\n * @private\n * @param {?} textarea\n * @return {?}\n */\n CdkTextareaAutosize.prototype._scrollToCaretPosition = /**\n * Scrolls a textarea to the caret position. On Firefox resizing the textarea will\n * prevent it from scrolling to the caret position. We need to re-set the selection\n * in order for it to scroll to the proper position.\n * @private\n * @param {?} textarea\n * @return {?}\n */\n function (textarea) {\n var selectionStart = textarea.selectionStart, selectionEnd = textarea.selectionEnd;\n // IE will throw an \"Unspecified error\" if we try to set the selection range after the\n // element has been removed from the DOM. Assert that the directive hasn't been destroyed\n // between the time we requested the animation frame and when it was executed.\n // Also note that we have to assert that the textarea is focused before we set the\n // selection range. Setting the selection range on a non-focused textarea will cause\n // it to receive focus on IE and Edge.\n if (!this._destroyed.isStopped && document.activeElement === textarea) {\n textarea.setSelectionRange(selectionStart, selectionEnd);\n }\n };\n CdkTextareaAutosize.decorators = [\n { type: Directive, args: [{\n selector: 'textarea[cdkTextareaAutosize]',\n exportAs: 'cdkTextareaAutosize',\n host: {\n 'class': 'cdk-textarea-autosize',\n // Textarea elements that have the directive applied should have a single row by default.\n // Browsers normally show two rows by default and therefore this limits the minRows binding.\n 'rows': '1',\n '(input)': '_noopInputHandler()',\n },\n },] },\n ];\n /** @nocollapse */\n CdkTextareaAutosize.ctorParameters = function () { return [\n { type: ElementRef },\n { type: Platform },\n { type: NgZone }\n ]; };\n CdkTextareaAutosize.propDecorators = {\n minRows: [{ type: Input, args: ['cdkAutosizeMinRows',] }],\n maxRows: [{ type: Input, args: ['cdkAutosizeMaxRows',] }],\n enabled: [{ type: Input, args: ['cdkTextareaAutosize',] }]\n };\n return CdkTextareaAutosize;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nvar TextFieldModule = /** @class */ (function () {\n function TextFieldModule() {\n }\n TextFieldModule.decorators = [\n { type: NgModule, args: [{\n declarations: [CdkAutofill, CdkTextareaAutosize],\n imports: [PlatformModule],\n exports: [CdkAutofill, CdkTextareaAutosize],\n },] },\n ];\n return TextFieldModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { AutofillMonitor, CdkAutofill, CdkTextareaAutosize, TextFieldModule };\n//# sourceMappingURL=text-field.es5.js.map\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { SelectionModel } from '@angular/cdk/collections';\nimport { __extends } from 'tslib';\nimport { Observable, BehaviorSubject, of, Subject } from 'rxjs';\nimport { take, filter, takeUntil } from 'rxjs/operators';\nimport { Directive, TemplateRef, ViewContainerRef, ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChildren, ElementRef, Input, IterableDiffers, ViewChild, ViewEncapsulation, Optional, Renderer2, NgModule } from '@angular/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceNumberProperty, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { FocusMonitor } from '@angular/cdk/a11y';\nimport { CommonModule } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Base tree control. It has basic toggle/expand/collapse operations on a single data node.\n * @abstract\n * @template T\n */\nvar /**\n * Base tree control. It has basic toggle/expand/collapse operations on a single data node.\n * @abstract\n * @template T\n */\nBaseTreeControl = /** @class */ (function () {\n function BaseTreeControl() {\n /**\n * A selection model with multi-selection to track expansion status.\n */\n this.expansionModel = new SelectionModel(true);\n }\n /** Toggles one single data node's expanded/collapsed state. */\n /**\n * Toggles one single data node's expanded/collapsed state.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.toggle = /**\n * Toggles one single data node's expanded/collapsed state.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n this.expansionModel.toggle(dataNode);\n };\n /** Expands one single data node. */\n /**\n * Expands one single data node.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.expand = /**\n * Expands one single data node.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n this.expansionModel.select(dataNode);\n };\n /** Collapses one single data node. */\n /**\n * Collapses one single data node.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.collapse = /**\n * Collapses one single data node.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n this.expansionModel.deselect(dataNode);\n };\n /** Whether a given data node is expanded or not. Returns true if the data node is expanded. */\n /**\n * Whether a given data node is expanded or not. Returns true if the data node is expanded.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.isExpanded = /**\n * Whether a given data node is expanded or not. Returns true if the data node is expanded.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n return this.expansionModel.isSelected(dataNode);\n };\n /** Toggles a subtree rooted at `node` recursively. */\n /**\n * Toggles a subtree rooted at `node` recursively.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.toggleDescendants = /**\n * Toggles a subtree rooted at `node` recursively.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n this.expansionModel.isSelected(dataNode)\n ? this.collapseDescendants(dataNode)\n : this.expandDescendants(dataNode);\n };\n /** Collapse all dataNodes in the tree. */\n /**\n * Collapse all dataNodes in the tree.\n * @return {?}\n */\n BaseTreeControl.prototype.collapseAll = /**\n * Collapse all dataNodes in the tree.\n * @return {?}\n */\n function () {\n this.expansionModel.clear();\n };\n /** Expands a subtree rooted at given data node recursively. */\n /**\n * Expands a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.expandDescendants = /**\n * Expands a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n var _a;\n /** @type {?} */\n var toBeProcessed = [dataNode];\n toBeProcessed.push.apply(toBeProcessed, this.getDescendants(dataNode));\n (_a = this.expansionModel).select.apply(_a, toBeProcessed);\n };\n /** Collapses a subtree rooted at given data node recursively. */\n /**\n * Collapses a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n BaseTreeControl.prototype.collapseDescendants = /**\n * Collapses a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n var _a;\n /** @type {?} */\n var toBeProcessed = [dataNode];\n toBeProcessed.push.apply(toBeProcessed, this.getDescendants(dataNode));\n (_a = this.expansionModel).deselect.apply(_a, toBeProcessed);\n };\n return BaseTreeControl;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Flat tree control. Able to expand/collapse a subtree recursively for flattened tree.\n * @template T\n */\nvar /**\n * Flat tree control. Able to expand/collapse a subtree recursively for flattened tree.\n * @template T\n */\nFlatTreeControl = /** @class */ (function (_super) {\n __extends(FlatTreeControl, _super);\n /** Construct with flat tree data node functions getLevel and isExpandable. */\n function FlatTreeControl(getLevel, isExpandable) {\n var _this = _super.call(this) || this;\n _this.getLevel = getLevel;\n _this.isExpandable = isExpandable;\n return _this;\n }\n /**\n * Gets a list of the data node's subtree of descendent data nodes.\n *\n * To make this working, the `dataNodes` of the TreeControl must be flattened tree nodes\n * with correct levels.\n */\n /**\n * Gets a list of the data node's subtree of descendent data nodes.\n *\n * To make this working, the `dataNodes` of the TreeControl must be flattened tree nodes\n * with correct levels.\n * @param {?} dataNode\n * @return {?}\n */\n FlatTreeControl.prototype.getDescendants = /**\n * Gets a list of the data node's subtree of descendent data nodes.\n *\n * To make this working, the `dataNodes` of the TreeControl must be flattened tree nodes\n * with correct levels.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n /** @type {?} */\n var startIndex = this.dataNodes.indexOf(dataNode);\n /** @type {?} */\n var results = [];\n // Goes through flattened tree nodes in the `dataNodes` array, and get all descendants.\n // The level of descendants of a tree node must be greater than the level of the given\n // tree node.\n // If we reach a node whose level is equal to the level of the tree node, we hit a sibling.\n // If we reach a node whose level is greater than the level of the tree node, we hit a\n // sibling of an ancestor.\n for (var i = startIndex + 1; i < this.dataNodes.length && this.getLevel(dataNode) < this.getLevel(this.dataNodes[i]); i++) {\n results.push(this.dataNodes[i]);\n }\n return results;\n };\n /**\n * Expands all data nodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all flattened\n * data nodes of the tree.\n */\n /**\n * Expands all data nodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all flattened\n * data nodes of the tree.\n * @return {?}\n */\n FlatTreeControl.prototype.expandAll = /**\n * Expands all data nodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all flattened\n * data nodes of the tree.\n * @return {?}\n */\n function () {\n var _a;\n (_a = this.expansionModel).select.apply(_a, this.dataNodes);\n };\n return FlatTreeControl;\n}(BaseTreeControl));\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Nested tree control. Able to expand/collapse a subtree recursively for NestedNode type.\n * @template T\n */\nvar /**\n * Nested tree control. Able to expand/collapse a subtree recursively for NestedNode type.\n * @template T\n */\nNestedTreeControl = /** @class */ (function (_super) {\n __extends(NestedTreeControl, _super);\n /** Construct with nested tree function getChildren. */\n function NestedTreeControl(getChildren) {\n var _this = _super.call(this) || this;\n _this.getChildren = getChildren;\n return _this;\n }\n /**\n * Expands all dataNodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all root level\n * data nodes of the tree.\n */\n /**\n * Expands all dataNodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all root level\n * data nodes of the tree.\n * @return {?}\n */\n NestedTreeControl.prototype.expandAll = /**\n * Expands all dataNodes in the tree.\n *\n * To make this working, the `dataNodes` variable of the TreeControl must be set to all root level\n * data nodes of the tree.\n * @return {?}\n */\n function () {\n var _this = this;\n var _a;\n this.expansionModel.clear();\n /** @type {?} */\n var allNodes = this.dataNodes.reduce(function (accumulator, dataNode) {\n return accumulator.concat(_this.getDescendants(dataNode), [dataNode]);\n }, []);\n (_a = this.expansionModel).select.apply(_a, allNodes);\n };\n /** Gets a list of descendant dataNodes of a subtree rooted at given data node recursively. */\n /**\n * Gets a list of descendant dataNodes of a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n NestedTreeControl.prototype.getDescendants = /**\n * Gets a list of descendant dataNodes of a subtree rooted at given data node recursively.\n * @param {?} dataNode\n * @return {?}\n */\n function (dataNode) {\n /** @type {?} */\n var descendants = [];\n this._getDescendants(descendants, dataNode);\n // Remove the node itself\n return descendants.splice(1);\n };\n /** A helper function to get descendants recursively. */\n /**\n * A helper function to get descendants recursively.\n * @protected\n * @param {?} descendants\n * @param {?} dataNode\n * @return {?}\n */\n NestedTreeControl.prototype._getDescendants = /**\n * A helper function to get descendants recursively.\n * @protected\n * @param {?} descendants\n * @param {?} dataNode\n * @return {?}\n */\n function (descendants, dataNode) {\n var _this = this;\n descendants.push(dataNode);\n /** @type {?} */\n var childrenNodes = this.getChildren(dataNode);\n if (Array.isArray(childrenNodes)) {\n childrenNodes.forEach(function (child) { return _this._getDescendants(descendants, child); });\n }\n else if (childrenNodes instanceof Observable) {\n childrenNodes.pipe(take(1), filter(Boolean)).subscribe(function (children) {\n children.forEach(function (child) { return _this._getDescendants(descendants, child); });\n });\n }\n };\n return NestedTreeControl;\n}(BaseTreeControl));\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Context provided to the tree node component.\n * @template T\n */\nvar /**\n * Context provided to the tree node component.\n * @template T\n */\nCdkTreeNodeOutletContext = /** @class */ (function () {\n function CdkTreeNodeOutletContext(data) {\n this.$implicit = data;\n }\n return CdkTreeNodeOutletContext;\n}());\n/**\n * Data node definition for the CdkTree.\n * Captures the node's template and a when predicate that describes when this node should be used.\n * @template T\n */\nvar CdkTreeNodeDef = /** @class */ (function () {\n /** @docs-private */\n function CdkTreeNodeDef(template) {\n this.template = template;\n }\n CdkTreeNodeDef.decorators = [\n { type: Directive, args: [{\n selector: '[cdkTreeNodeDef]',\n inputs: [\n 'when: cdkTreeNodeDefWhen'\n ],\n },] },\n ];\n /** @nocollapse */\n CdkTreeNodeDef.ctorParameters = function () { return [\n { type: TemplateRef }\n ]; };\n return CdkTreeNodeDef;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Outlet for nested CdkNode. Put `[cdkTreeNodeOutlet]` on a tag to place children dataNodes\n * inside the outlet.\n */\nvar CdkTreeNodeOutlet = /** @class */ (function () {\n function CdkTreeNodeOutlet(viewContainer) {\n this.viewContainer = viewContainer;\n }\n CdkTreeNodeOutlet.decorators = [\n { type: Directive, args: [{\n selector: '[cdkTreeNodeOutlet]'\n },] },\n ];\n /** @nocollapse */\n CdkTreeNodeOutlet.ctorParameters = function () { return [\n { type: ViewContainerRef }\n ]; };\n return CdkTreeNodeOutlet;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Returns an error to be thrown when there is no usable data.\n * \\@docs-private\n * @return {?}\n */\nfunction getTreeNoValidDataSourceError() {\n return Error(\"A valid data source must be provided.\");\n}\n/**\n * Returns an error to be thrown when there are multiple nodes that are missing a when function.\n * \\@docs-private\n * @return {?}\n */\nfunction getTreeMultipleDefaultNodeDefsError() {\n return Error(\"There can only be one default row without a when predicate function.\");\n}\n/**\n * Returns an error to be thrown when there are no matching node defs for a particular set of data.\n * \\@docs-private\n * @return {?}\n */\nfunction getTreeMissingMatchingNodeDefError() {\n return Error(\"Could not find a matching node definition for the provided node data.\");\n}\n/**\n * Returns an error to be thrown when there are tree control.\n * \\@docs-private\n * @return {?}\n */\nfunction getTreeControlMissingError() {\n return Error(\"Could not find a tree control for the tree.\");\n}\n/**\n * Returns an error to be thrown when tree control did not implement functions for flat/nested node.\n * \\@docs-private\n * @return {?}\n */\nfunction getTreeControlFunctionsMissingError() {\n return Error(\"Could not find functions for nested/flat tree in tree control.\");\n}\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * CDK tree component that connects with a data source to retrieve data of type `T` and renders\n * dataNodes with hierarchy. Updates the dataNodes when new data is provided by the data source.\n * @template T\n */\nvar CdkTree = /** @class */ (function () {\n function CdkTree(_differs, _changeDetectorRef) {\n this._differs = _differs;\n this._changeDetectorRef = _changeDetectorRef;\n /**\n * Subject that emits when the component has been destroyed.\n */\n this._onDestroy = new Subject();\n /**\n * Level of nodes\n */\n this._levels = new Map();\n // TODO(tinayuangao): Setup a listener for scrolling, emit the calculated view to viewChange.\n // Remove the MAX_VALUE in viewChange\n /**\n * Stream containing the latest information on what rows are being displayed on screen.\n * Can be used by the data source to as a heuristic of what data should be provided.\n */\n this.viewChange = new BehaviorSubject({ start: 0, end: Number.MAX_VALUE });\n }\n Object.defineProperty(CdkTree.prototype, \"dataSource\", {\n /**\n * Provides a stream containing the latest data array to render. Influenced by the tree's\n * stream of view window (what dataNodes are currently on screen).\n * Data source can be an observable of data array, or a data array to render.\n */\n get: /**\n * Provides a stream containing the latest data array to render. Influenced by the tree's\n * stream of view window (what dataNodes are currently on screen).\n * Data source can be an observable of data array, or a data array to render.\n * @return {?}\n */\n function () { return this._dataSource; },\n set: /**\n * @param {?} dataSource\n * @return {?}\n */\n function (dataSource) {\n if (this._dataSource !== dataSource) {\n this._switchDataSource(dataSource);\n }\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkTree.prototype.ngOnInit = /**\n * @return {?}\n */\n function () {\n this._dataDiffer = this._differs.find([]).create(this.trackBy);\n if (!this.treeControl) {\n throw getTreeControlMissingError();\n }\n };\n /**\n * @return {?}\n */\n CdkTree.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._nodeOutlet.viewContainer.clear();\n this._onDestroy.next();\n this._onDestroy.complete();\n if (this._dataSource && typeof ((/** @type {?} */ (this._dataSource))).disconnect === 'function') {\n ((/** @type {?} */ (this.dataSource))).disconnect(this);\n }\n if (this._dataSubscription) {\n this._dataSubscription.unsubscribe();\n this._dataSubscription = null;\n }\n };\n /**\n * @return {?}\n */\n CdkTree.prototype.ngAfterContentChecked = /**\n * @return {?}\n */\n function () {\n /** @type {?} */\n var defaultNodeDefs = this._nodeDefs.filter(function (def) { return !def.when; });\n if (defaultNodeDefs.length > 1) {\n throw getTreeMultipleDefaultNodeDefsError();\n }\n this._defaultNodeDef = defaultNodeDefs[0];\n if (this.dataSource && this._nodeDefs && !this._dataSubscription) {\n this._observeRenderChanges();\n }\n };\n // TODO(tinayuangao): Work on keyboard traversal and actions, make sure it's working for RTL\n // and nested trees.\n /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the node outlet. Otherwise start listening for new data.\n */\n // TODO(tinayuangao): Work on keyboard traversal and actions, make sure it's working for RTL\n // and nested trees.\n /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the node outlet. Otherwise start listening for new data.\n * @private\n * @param {?} dataSource\n * @return {?}\n */\n CdkTree.prototype._switchDataSource = \n // TODO(tinayuangao): Work on keyboard traversal and actions, make sure it's working for RTL\n // and nested trees.\n /**\n * Switch to the provided data source by resetting the data and unsubscribing from the current\n * render change subscription if one exists. If the data source is null, interpret this by\n * clearing the node outlet. Otherwise start listening for new data.\n * @private\n * @param {?} dataSource\n * @return {?}\n */\n function (dataSource) {\n if (this._dataSource && typeof ((/** @type {?} */ (this._dataSource))).disconnect === 'function') {\n ((/** @type {?} */ (this.dataSource))).disconnect(this);\n }\n if (this._dataSubscription) {\n this._dataSubscription.unsubscribe();\n this._dataSubscription = null;\n }\n // Remove the all dataNodes if there is now no data source\n if (!dataSource) {\n this._nodeOutlet.viewContainer.clear();\n }\n this._dataSource = dataSource;\n if (this._nodeDefs) {\n this._observeRenderChanges();\n }\n };\n /** Set up a subscription for the data provided by the data source. */\n /**\n * Set up a subscription for the data provided by the data source.\n * @private\n * @return {?}\n */\n CdkTree.prototype._observeRenderChanges = /**\n * Set up a subscription for the data provided by the data source.\n * @private\n * @return {?}\n */\n function () {\n var _this = this;\n /** @type {?} */\n var dataStream;\n // Cannot use `instanceof DataSource` since the data source could be a literal with\n // `connect` function and may not extends DataSource.\n if (typeof ((/** @type {?} */ (this._dataSource))).connect === 'function') {\n dataStream = ((/** @type {?} */ (this._dataSource))).connect(this);\n }\n else if (this._dataSource instanceof Observable) {\n dataStream = this._dataSource;\n }\n else if (Array.isArray(this._dataSource)) {\n dataStream = of(this._dataSource);\n }\n if (dataStream) {\n this._dataSubscription = dataStream.pipe(takeUntil(this._onDestroy))\n .subscribe(function (data) { return _this.renderNodeChanges(data); });\n }\n else {\n throw getTreeNoValidDataSourceError();\n }\n };\n /** Check for changes made in the data and render each change (node added/removed/moved). */\n /**\n * Check for changes made in the data and render each change (node added/removed/moved).\n * @param {?} data\n * @param {?=} dataDiffer\n * @param {?=} viewContainer\n * @param {?=} parentData\n * @return {?}\n */\n CdkTree.prototype.renderNodeChanges = /**\n * Check for changes made in the data and render each change (node added/removed/moved).\n * @param {?} data\n * @param {?=} dataDiffer\n * @param {?=} viewContainer\n * @param {?=} parentData\n * @return {?}\n */\n function (data, dataDiffer, viewContainer, parentData) {\n var _this = this;\n if (dataDiffer === void 0) { dataDiffer = this._dataDiffer; }\n if (viewContainer === void 0) { viewContainer = this._nodeOutlet.viewContainer; }\n /** @type {?} */\n var changes = dataDiffer.diff(data);\n if (!changes) {\n return;\n }\n changes.forEachOperation(function (item, adjustedPreviousIndex, currentIndex) {\n if (item.previousIndex == null) {\n _this.insertNode(data[(/** @type {?} */ (currentIndex))], (/** @type {?} */ (currentIndex)), viewContainer, parentData);\n }\n else if (currentIndex == null) {\n viewContainer.remove((/** @type {?} */ (adjustedPreviousIndex)));\n _this._levels.delete(item.item);\n }\n else {\n /** @type {?} */\n var view = viewContainer.get((/** @type {?} */ (adjustedPreviousIndex)));\n viewContainer.move((/** @type {?} */ (view)), currentIndex);\n }\n });\n this._changeDetectorRef.detectChanges();\n };\n /**\n * Finds the matching node definition that should be used for this node data. If there is only\n * one node definition, it is returned. Otherwise, find the node definition that has a when\n * predicate that returns true with the data. If none return true, return the default node\n * definition.\n */\n /**\n * Finds the matching node definition that should be used for this node data. If there is only\n * one node definition, it is returned. Otherwise, find the node definition that has a when\n * predicate that returns true with the data. If none return true, return the default node\n * definition.\n * @param {?} data\n * @param {?} i\n * @return {?}\n */\n CdkTree.prototype._getNodeDef = /**\n * Finds the matching node definition that should be used for this node data. If there is only\n * one node definition, it is returned. Otherwise, find the node definition that has a when\n * predicate that returns true with the data. If none return true, return the default node\n * definition.\n * @param {?} data\n * @param {?} i\n * @return {?}\n */\n function (data, i) {\n if (this._nodeDefs.length === 1) {\n return this._nodeDefs.first;\n }\n /** @type {?} */\n var nodeDef = this._nodeDefs.find(function (def) { return def.when && def.when(i, data); }) || this._defaultNodeDef;\n if (!nodeDef) {\n throw getTreeMissingMatchingNodeDefError();\n }\n return nodeDef;\n };\n /**\n * Create the embedded view for the data node template and place it in the correct index location\n * within the data node view container.\n */\n /**\n * Create the embedded view for the data node template and place it in the correct index location\n * within the data node view container.\n * @param {?} nodeData\n * @param {?} index\n * @param {?=} viewContainer\n * @param {?=} parentData\n * @return {?}\n */\n CdkTree.prototype.insertNode = /**\n * Create the embedded view for the data node template and place it in the correct index location\n * within the data node view container.\n * @param {?} nodeData\n * @param {?} index\n * @param {?=} viewContainer\n * @param {?=} parentData\n * @return {?}\n */\n function (nodeData, index, viewContainer, parentData) {\n /** @type {?} */\n var node = this._getNodeDef(nodeData, index);\n // Node context that will be provided to created embedded view\n /** @type {?} */\n var context = new CdkTreeNodeOutletContext(nodeData);\n // If the tree is flat tree, then use the `getLevel` function in flat tree control\n // Otherwise, use the level of parent node.\n if (this.treeControl.getLevel) {\n context.level = this.treeControl.getLevel(nodeData);\n }\n else if (typeof parentData !== 'undefined' && this._levels.has(parentData)) {\n context.level = (/** @type {?} */ (this._levels.get(parentData))) + 1;\n }\n else {\n context.level = 0;\n }\n this._levels.set(nodeData, context.level);\n // Use default tree nodeOutlet, or nested node's nodeOutlet\n /** @type {?} */\n var container = viewContainer ? viewContainer : this._nodeOutlet.viewContainer;\n container.createEmbeddedView(node.template, context, index);\n // Set the data to just created `CdkTreeNode`.\n // The `CdkTreeNode` created from `createEmbeddedView` will be saved in static variable\n // `mostRecentTreeNode`. We get it from static variable and pass the node data to it.\n if (CdkTreeNode.mostRecentTreeNode) {\n CdkTreeNode.mostRecentTreeNode.data = nodeData;\n }\n };\n CdkTree.decorators = [\n { type: Component, args: [{selector: 'cdk-tree',\n exportAs: 'cdkTree',\n template: \"\",\n host: {\n 'class': 'cdk-tree',\n 'role': 'tree',\n },\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush\n },] },\n ];\n /** @nocollapse */\n CdkTree.ctorParameters = function () { return [\n { type: IterableDiffers },\n { type: ChangeDetectorRef }\n ]; };\n CdkTree.propDecorators = {\n dataSource: [{ type: Input }],\n treeControl: [{ type: Input }],\n trackBy: [{ type: Input }],\n _nodeOutlet: [{ type: ViewChild, args: [CdkTreeNodeOutlet,] }],\n _nodeDefs: [{ type: ContentChildren, args: [CdkTreeNodeDef,] }]\n };\n return CdkTree;\n}());\n/**\n * Tree node for CdkTree. It contains the data in the tree node.\n * @template T\n */\nvar CdkTreeNode = /** @class */ (function () {\n function CdkTreeNode(_elementRef, _tree) {\n this._elementRef = _elementRef;\n this._tree = _tree;\n /**\n * Subject that emits when the component has been destroyed.\n */\n this._destroyed = new Subject();\n /**\n * The role of the node should be 'group' if it's an internal node,\n * and 'treeitem' if it's a leaf node.\n */\n this.role = 'treeitem';\n CdkTreeNode.mostRecentTreeNode = (/** @type {?} */ (this));\n }\n Object.defineProperty(CdkTreeNode.prototype, \"data\", {\n /** The tree node's data. */\n get: /**\n * The tree node's data.\n * @return {?}\n */\n function () { return this._data; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._data = value;\n this._setRoleFromData();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTreeNode.prototype, \"isExpanded\", {\n get: /**\n * @return {?}\n */\n function () {\n return this._tree.treeControl.isExpanded(this._data);\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTreeNode.prototype, \"level\", {\n get: /**\n * @return {?}\n */\n function () {\n return this._tree.treeControl.getLevel ? this._tree.treeControl.getLevel(this._data) : 0;\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkTreeNode.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n // If this is the last tree node being destroyed,\n // clear out the reference to avoid leaking memory.\n if (CdkTreeNode.mostRecentTreeNode === this) {\n CdkTreeNode.mostRecentTreeNode = null;\n }\n this._destroyed.next();\n this._destroyed.complete();\n };\n /** Focuses the menu item. Implements for FocusableOption. */\n /**\n * Focuses the menu item. Implements for FocusableOption.\n * @return {?}\n */\n CdkTreeNode.prototype.focus = /**\n * Focuses the menu item. Implements for FocusableOption.\n * @return {?}\n */\n function () {\n this._elementRef.nativeElement.focus();\n };\n /**\n * @protected\n * @return {?}\n */\n CdkTreeNode.prototype._setRoleFromData = /**\n * @protected\n * @return {?}\n */\n function () {\n var _this = this;\n if (this._tree.treeControl.isExpandable) {\n this.role = this._tree.treeControl.isExpandable(this._data) ? 'group' : 'treeitem';\n }\n else {\n if (!this._tree.treeControl.getChildren) {\n throw getTreeControlFunctionsMissingError();\n }\n /** @type {?} */\n var childrenNodes = this._tree.treeControl.getChildren(this._data);\n if (Array.isArray(childrenNodes)) {\n this._setRoleFromChildren((/** @type {?} */ (childrenNodes)));\n }\n else if (childrenNodes instanceof Observable) {\n childrenNodes.pipe(takeUntil(this._destroyed))\n .subscribe(function (children) { return _this._setRoleFromChildren(children); });\n }\n }\n };\n /**\n * @protected\n * @param {?} children\n * @return {?}\n */\n CdkTreeNode.prototype._setRoleFromChildren = /**\n * @protected\n * @param {?} children\n * @return {?}\n */\n function (children) {\n this.role = children && children.length ? 'group' : 'treeitem';\n };\n /**\n * The most recently created `CdkTreeNode`. We save it in static variable so we can retrieve it\n * in `CdkTree` and set the data to it.\n */\n CdkTreeNode.mostRecentTreeNode = null;\n CdkTreeNode.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-tree-node',\n exportAs: 'cdkTreeNode',\n host: {\n '[attr.aria-expanded]': 'isExpanded',\n '[attr.aria-level]': 'role === \"treeitem\" ? level : null',\n '[attr.role]': 'role',\n 'class': 'cdk-tree-node',\n },\n },] },\n ];\n /** @nocollapse */\n CdkTreeNode.ctorParameters = function () { return [\n { type: ElementRef },\n { type: CdkTree }\n ]; };\n CdkTreeNode.propDecorators = {\n role: [{ type: Input }]\n };\n return CdkTreeNode;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Nested node is a child of ``. It works with nested tree.\n * By using `cdk-nested-tree-node` component in tree node template, children of the parent node will\n * be added in the `cdkTreeNodeOutlet` in tree node template.\n * For example:\n * ```html\n * \n * {{node.name}}\n * \n * \n * ```\n * The children of node will be automatically added to `cdkTreeNodeOutlet`, the result dom will be\n * like this:\n * ```html\n * \n * {{node.name}}\n * {{child1.name}}\n * {{child2.name}}\n * \n * ```\n * @template T\n */\nvar CdkNestedTreeNode = /** @class */ (function (_super) {\n __extends(CdkNestedTreeNode, _super);\n function CdkNestedTreeNode(_elementRef, _tree, _differs) {\n var _this = _super.call(this, _elementRef, _tree) || this;\n _this._elementRef = _elementRef;\n _this._tree = _tree;\n _this._differs = _differs;\n return _this;\n }\n /**\n * @return {?}\n */\n CdkNestedTreeNode.prototype.ngAfterContentInit = /**\n * @return {?}\n */\n function () {\n var _this = this;\n this._dataDiffer = this._differs.find([]).create(this._tree.trackBy);\n if (!this._tree.treeControl.getChildren) {\n throw getTreeControlFunctionsMissingError();\n }\n /** @type {?} */\n var childrenNodes = this._tree.treeControl.getChildren(this.data);\n if (Array.isArray(childrenNodes)) {\n this.updateChildrenNodes((/** @type {?} */ (childrenNodes)));\n }\n else if (childrenNodes instanceof Observable) {\n childrenNodes.pipe(takeUntil(this._destroyed))\n .subscribe(function (result) { return _this.updateChildrenNodes(result); });\n }\n this.nodeOutlet.changes.pipe(takeUntil(this._destroyed))\n .subscribe(function () { return _this.updateChildrenNodes(); });\n };\n /**\n * @return {?}\n */\n CdkNestedTreeNode.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._clear();\n _super.prototype.ngOnDestroy.call(this);\n };\n /** Add children dataNodes to the NodeOutlet */\n /**\n * Add children dataNodes to the NodeOutlet\n * @protected\n * @param {?=} children\n * @return {?}\n */\n CdkNestedTreeNode.prototype.updateChildrenNodes = /**\n * Add children dataNodes to the NodeOutlet\n * @protected\n * @param {?=} children\n * @return {?}\n */\n function (children) {\n if (children) {\n this._children = children;\n }\n if (this.nodeOutlet.length && this._children) {\n /** @type {?} */\n var viewContainer = this.nodeOutlet.first.viewContainer;\n this._tree.renderNodeChanges(this._children, this._dataDiffer, viewContainer, this._data);\n }\n else {\n // Reset the data differ if there's no children nodes displayed\n this._dataDiffer.diff([]);\n }\n };\n /** Clear the children dataNodes. */\n /**\n * Clear the children dataNodes.\n * @protected\n * @return {?}\n */\n CdkNestedTreeNode.prototype._clear = /**\n * Clear the children dataNodes.\n * @protected\n * @return {?}\n */\n function () {\n if (this.nodeOutlet && this.nodeOutlet.first) {\n this.nodeOutlet.first.viewContainer.clear();\n this._dataDiffer.diff([]);\n }\n };\n CdkNestedTreeNode.decorators = [\n { type: Directive, args: [{\n selector: 'cdk-nested-tree-node',\n exportAs: 'cdkNestedTreeNode',\n host: {\n '[attr.aria-expanded]': 'isExpanded',\n '[attr.role]': 'role',\n 'class': 'cdk-tree-node cdk-nested-tree-node',\n },\n providers: [{ provide: CdkTreeNode, useExisting: CdkNestedTreeNode }]\n },] },\n ];\n /** @nocollapse */\n CdkNestedTreeNode.ctorParameters = function () { return [\n { type: ElementRef },\n { type: CdkTree },\n { type: IterableDiffers }\n ]; };\n CdkNestedTreeNode.propDecorators = {\n nodeOutlet: [{ type: ContentChildren, args: [CdkTreeNodeOutlet,] }]\n };\n return CdkNestedTreeNode;\n}(CdkTreeNode));\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Regex used to split a string on its CSS units.\n * @type {?}\n */\nvar cssUnitPattern = /([A-Za-z%]+)$/;\n/**\n * Indent for the children tree dataNodes.\n * This directive will add left-padding to the node to show hierarchy.\n * @template T\n */\nvar CdkTreeNodePadding = /** @class */ (function () {\n function CdkTreeNodePadding(_treeNode, _tree, _renderer, _element, _dir) {\n var _this = this;\n this._treeNode = _treeNode;\n this._tree = _tree;\n this._renderer = _renderer;\n this._element = _element;\n this._dir = _dir;\n /**\n * Subject that emits when the component has been destroyed.\n */\n this._destroyed = new Subject();\n /**\n * CSS units used for the indentation value.\n */\n this.indentUnits = 'px';\n this._indent = 40;\n this._setPadding();\n if (this._dir) {\n this._dir.change.pipe(takeUntil(this._destroyed)).subscribe(function () { return _this._setPadding(); });\n }\n }\n Object.defineProperty(CdkTreeNodePadding.prototype, \"level\", {\n /** The level of depth of the tree node. The padding will be `level * indent` pixels. */\n get: /**\n * The level of depth of the tree node. The padding will be `level * indent` pixels.\n * @return {?}\n */\n function () { return this._level; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) {\n this._level = coerceNumberProperty(value);\n this._setPadding();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(CdkTreeNodePadding.prototype, \"indent\", {\n /**\n * The indent for each level. Can be a number or a CSS string.\n * Default number 40px from material design menu sub-menu spec.\n */\n get: /**\n * The indent for each level. Can be a number or a CSS string.\n * Default number 40px from material design menu sub-menu spec.\n * @return {?}\n */\n function () { return this._indent; },\n set: /**\n * @param {?} indent\n * @return {?}\n */\n function (indent) {\n /** @type {?} */\n var value = indent;\n /** @type {?} */\n var units = 'px';\n if (typeof indent === 'string') {\n /** @type {?} */\n var parts = indent.split(cssUnitPattern);\n value = parts[0];\n units = parts[1] || units;\n }\n this.indentUnits = units;\n this._indent = coerceNumberProperty(value);\n this._setPadding();\n },\n enumerable: true,\n configurable: true\n });\n /**\n * @return {?}\n */\n CdkTreeNodePadding.prototype.ngOnDestroy = /**\n * @return {?}\n */\n function () {\n this._destroyed.next();\n this._destroyed.complete();\n };\n /** The padding indent value for the tree node. Returns a string with px numbers if not null. */\n /**\n * The padding indent value for the tree node. Returns a string with px numbers if not null.\n * @return {?}\n */\n CdkTreeNodePadding.prototype._paddingIndent = /**\n * The padding indent value for the tree node. Returns a string with px numbers if not null.\n * @return {?}\n */\n function () {\n /** @type {?} */\n var nodeLevel = (this._treeNode.data && this._tree.treeControl.getLevel)\n ? this._tree.treeControl.getLevel(this._treeNode.data)\n : null;\n /** @type {?} */\n var level = this._level || nodeLevel;\n return level ? \"\" + level * this._indent + this.indentUnits : null;\n };\n /**\n * @return {?}\n */\n CdkTreeNodePadding.prototype._setPadding = /**\n * @return {?}\n */\n function () {\n /** @type {?} */\n var padding = this._paddingIndent();\n /** @type {?} */\n var paddingProp = this._dir && this._dir.value === 'rtl' ? 'paddingRight' : 'paddingLeft';\n this._renderer.setStyle(this._element.nativeElement, paddingProp, padding);\n };\n CdkTreeNodePadding.decorators = [\n { type: Directive, args: [{\n selector: '[cdkTreeNodePadding]',\n },] },\n ];\n /** @nocollapse */\n CdkTreeNodePadding.ctorParameters = function () { return [\n { type: CdkTreeNode },\n { type: CdkTree },\n { type: Renderer2 },\n { type: ElementRef },\n { type: Directionality, decorators: [{ type: Optional }] }\n ]; };\n CdkTreeNodePadding.propDecorators = {\n level: [{ type: Input, args: ['cdkTreeNodePadding',] }],\n indent: [{ type: Input, args: ['cdkTreeNodePaddingIndent',] }]\n };\n return CdkTreeNodePadding;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Node toggle to expand/collapse the node.\n * @template T\n */\nvar CdkTreeNodeToggle = /** @class */ (function () {\n function CdkTreeNodeToggle(_tree, _treeNode) {\n this._tree = _tree;\n this._treeNode = _treeNode;\n this._recursive = false;\n }\n Object.defineProperty(CdkTreeNodeToggle.prototype, \"recursive\", {\n /** Whether expand/collapse the node recursively. */\n get: /**\n * Whether expand/collapse the node recursively.\n * @return {?}\n */\n function () { return this._recursive; },\n set: /**\n * @param {?} value\n * @return {?}\n */\n function (value) { this._recursive = coerceBooleanProperty(value); },\n enumerable: true,\n configurable: true\n });\n /**\n * @param {?} event\n * @return {?}\n */\n CdkTreeNodeToggle.prototype._toggle = /**\n * @param {?} event\n * @return {?}\n */\n function (event) {\n this.recursive\n ? this._tree.treeControl.toggleDescendants(this._treeNode.data)\n : this._tree.treeControl.toggle(this._treeNode.data);\n event.stopPropagation();\n };\n CdkTreeNodeToggle.decorators = [\n { type: Directive, args: [{\n selector: '[cdkTreeNodeToggle]',\n host: {\n '(click)': '_toggle($event)',\n }\n },] },\n ];\n /** @nocollapse */\n CdkTreeNodeToggle.ctorParameters = function () { return [\n { type: CdkTree },\n { type: CdkTreeNode }\n ]; };\n CdkTreeNodeToggle.propDecorators = {\n recursive: [{ type: Input, args: ['cdkTreeNodeToggleRecursive',] }]\n };\n return CdkTreeNodeToggle;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nvar EXPORTED_DECLARATIONS = [\n CdkNestedTreeNode,\n CdkTreeNodeDef,\n CdkTreeNodePadding,\n CdkTreeNodeToggle,\n CdkTree,\n CdkTreeNode,\n CdkTreeNodeOutlet,\n];\nvar CdkTreeModule = /** @class */ (function () {\n function CdkTreeModule() {\n }\n CdkTreeModule.decorators = [\n { type: NgModule, args: [{\n imports: [CommonModule],\n exports: EXPORTED_DECLARATIONS,\n declarations: EXPORTED_DECLARATIONS,\n providers: [FocusMonitor, CdkTreeNodeDef]\n },] },\n ];\n return CdkTreeModule;\n}());\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\nexport { BaseTreeControl, FlatTreeControl, NestedTreeControl, CdkNestedTreeNode, CdkTreeNodeOutletContext, CdkTreeNodeDef, CdkTreeNodePadding, CdkTreeNodeOutlet, CdkTree, CdkTreeNode, getTreeNoValidDataSourceError, getTreeMultipleDefaultNodeDefsError, getTreeMissingMatchingNodeDefError, getTreeControlMissingError, getTreeControlFunctionsMissingError, CdkTreeModule, CdkTreeNodeToggle };\n//# sourceMappingURL=tree.es5.js.map\n","/**\n * @license Angular v7.2.15\n * (c) 2010-2019 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { InjectionToken, Injectable, EventEmitter, Optional, Inject, LOCALE_ID, ɵisListLikeIterable, ɵstringify, Input, Directive, IterableDiffers, KeyValueDiffers, ElementRef, Renderer2, NgModuleRef, ComponentFactoryResolver, Type, Injector, NgModuleFactory, ViewContainerRef, isDevMode, TemplateRef, Host, Attribute, Pipe, WrappedValue, ɵisPromise, ɵisObservable, ChangeDetectorRef, NgModule, Version, defineInjectable, inject, ErrorHandler } from '@angular/core';\nimport { __decorate, __metadata, __extends, __param, __read, __values, __assign } from 'tslib';\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n *\n * `PlatformLocation` encapsulates all calls to DOM apis, which allows the Router to be platform\n * agnostic.\n * This means that we can have different implementation of `PlatformLocation` for the different\n * platforms that angular supports. For example, `@angular/platform-browser` provides an\n * implementation specific to the browser environment, while `@angular/platform-webworker` provides\n * one suitable for use with web workers.\n *\n * The `PlatformLocation` class is used directly by all implementations of {@link LocationStrategy}\n * when they need to interact with the DOM apis like pushState, popState, etc...\n *\n * {@link LocationStrategy} in turn is used by the {@link Location} service which is used directly\n * by the {@link Router} in order to navigate between routes. Since all interactions between {@link\n * Router} /\n * {@link Location} / {@link LocationStrategy} and DOM apis flow through the `PlatformLocation`\n * class they are all platform independent.\n *\n * @publicApi\n */\nvar PlatformLocation = /** @class */ (function () {\n function PlatformLocation() {\n }\n return PlatformLocation;\n}());\n/**\n * @description\n * Indicates when a location is initialized.\n *\n * @publicApi\n */\nvar LOCATION_INITIALIZED = new InjectionToken('Location Initialized');\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * `LocationStrategy` is responsible for representing and reading route state\n * from the browser's URL. Angular provides two strategies:\n * {@link HashLocationStrategy} and {@link PathLocationStrategy}.\n *\n * This is used under the hood of the {@link Location} service.\n *\n * Applications should use the {@link Router} or {@link Location} services to\n * interact with application route state.\n *\n * For instance, {@link HashLocationStrategy} produces URLs like\n * `http://example.com#/foo`, and {@link PathLocationStrategy} produces\n * `http://example.com/foo` as an equivalent URL.\n *\n * See these two classes for more.\n *\n * @publicApi\n */\nvar LocationStrategy = /** @class */ (function () {\n function LocationStrategy() {\n }\n return LocationStrategy;\n}());\n/**\n * A predefined [DI token](guide/glossary#di-token) for the base href\n * to be used with the `PathLocationStrategy`.\n * The base href is the URL prefix that should be preserved when generating\n * and recognizing URLs.\n *\n * @usageNotes\n *\n * The following example shows how to use this token to configure the root app injector\n * with a base href value, so that the DI framework can supply the dependency anywhere in the app.\n *\n * ```typescript\n * import {Component, NgModule} from '@angular/core';\n * import {APP_BASE_HREF} from '@angular/common';\n *\n * @NgModule({\n * providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]\n * })\n * class AppModule {}\n * ```\n *\n * @publicApi\n */\nvar APP_BASE_HREF = new InjectionToken('appBaseHref');\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n *\n * A service that applications can use to interact with a browser's URL.\n *\n * Depending on the {@link LocationStrategy} used, `Location` will either persist\n * to the URL's path or the URL's hash segment.\n *\n * @usageNotes\n *\n * It's better to use the {@link Router#navigate} service to trigger route changes. Use\n * `Location` only if you need to interact with or create normalized URLs outside of\n * routing.\n *\n * `Location` is responsible for normalizing the URL against the application's base href.\n * A normalized URL is absolute from the URL host, includes the application's base href, and has no\n * trailing slash:\n * - `/my/app/user/123` is normalized\n * - `my/app/user/123` **is not** normalized\n * - `/my/app/user/123/` **is not** normalized\n *\n * ### Example\n *\n * {@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nvar Location = /** @class */ (function () {\n function Location(platformStrategy) {\n var _this = this;\n /** @internal */\n this._subject = new EventEmitter();\n this._platformStrategy = platformStrategy;\n var browserBaseHref = this._platformStrategy.getBaseHref();\n this._baseHref = Location_1.stripTrailingSlash(_stripIndexHtml(browserBaseHref));\n this._platformStrategy.onPopState(function (ev) {\n _this._subject.emit({\n 'url': _this.path(true),\n 'pop': true,\n 'state': ev.state,\n 'type': ev.type,\n });\n });\n }\n Location_1 = Location;\n /**\n * Returns the normalized URL path.\n *\n * @param includeHash Whether path has an anchor fragment.\n *\n * @returns The normalized URL path.\n */\n // TODO: vsavkin. Remove the boolean flag and always include hash once the deprecated router is\n // removed.\n Location.prototype.path = function (includeHash) {\n if (includeHash === void 0) { includeHash = false; }\n return this.normalize(this._platformStrategy.path(includeHash));\n };\n /**\n * Normalizes the given path and compares to the current normalized path.\n *\n * @param path The given URL path\n * @param query Query parameters\n *\n * @returns `true` if the given URL path is equal to the current normalized path, `false`\n * otherwise.\n */\n Location.prototype.isCurrentPathEqualTo = function (path, query) {\n if (query === void 0) { query = ''; }\n return this.path() == this.normalize(path + Location_1.normalizeQueryParams(query));\n };\n /**\n * Given a string representing a URL, returns the URL path after stripping the\n * trailing slashes.\n *\n * @param url String representing a URL.\n *\n * @returns Normalized URL string.\n */\n Location.prototype.normalize = function (url) {\n return Location_1.stripTrailingSlash(_stripBaseHref(this._baseHref, _stripIndexHtml(url)));\n };\n /**\n * Given a string representing a URL, returns the platform-specific external URL path.\n * If the given URL doesn't begin with a leading slash (`'/'`), this method adds one\n * before normalizing. This method also adds a hash if `HashLocationStrategy` is\n * used, or the `APP_BASE_HREF` if the `PathLocationStrategy` is in use.\n *\n *\n * @param url String representing a URL.\n *\n * @returns A normalized platform-specific URL.\n */\n Location.prototype.prepareExternalUrl = function (url) {\n if (url && url[0] !== '/') {\n url = '/' + url;\n }\n return this._platformStrategy.prepareExternalUrl(url);\n };\n // TODO: rename this method to pushState\n /**\n * Changes the browsers URL to a normalized version of the given URL, and pushes a\n * new item onto the platform's history.\n *\n * @param path URL path to normalizze\n * @param query Query parameters\n * @param state Location history state\n *\n */\n Location.prototype.go = function (path, query, state) {\n if (query === void 0) { query = ''; }\n if (state === void 0) { state = null; }\n this._platformStrategy.pushState(state, '', path, query);\n };\n /**\n * Changes the browser's URL to a normalized version of the given URL, and replaces\n * the top item on the platform's history stack.\n *\n * @param path URL path to normalizze\n * @param query Query parameters\n * @param state Location history state\n */\n Location.prototype.replaceState = function (path, query, state) {\n if (query === void 0) { query = ''; }\n if (state === void 0) { state = null; }\n this._platformStrategy.replaceState(state, '', path, query);\n };\n /**\n * Navigates forward in the platform's history.\n */\n Location.prototype.forward = function () { this._platformStrategy.forward(); };\n /**\n * Navigates back in the platform's history.\n */\n Location.prototype.back = function () { this._platformStrategy.back(); };\n /**\n * Subscribe to the platform's `popState` events.\n *\n * @param value Event that is triggered when the state history changes.\n * @param exception The exception to throw.\n *\n * @returns Subscribed events.\n */\n Location.prototype.subscribe = function (onNext, onThrow, onReturn) {\n return this._subject.subscribe({ next: onNext, error: onThrow, complete: onReturn });\n };\n /**\n * Given a string of url parameters, prepend with `?` if needed, otherwise return the\n * parameters as is.\n *\n * @param params String of URL parameters\n *\n * @returns URL parameters prepended with `?` or the parameters as is.\n */\n Location.normalizeQueryParams = function (params) {\n return params && params[0] !== '?' ? '?' + params : params;\n };\n /**\n * Given 2 parts of a URL, join them with a slash if needed.\n *\n * @param start URL string\n * @param end URL string\n *\n *\n * @returns Given URL strings joined with a slash, if needed.\n */\n Location.joinWithSlash = function (start, end) {\n if (start.length == 0) {\n return end;\n }\n if (end.length == 0) {\n return start;\n }\n var slashes = 0;\n if (start.endsWith('/')) {\n slashes++;\n }\n if (end.startsWith('/')) {\n slashes++;\n }\n if (slashes == 2) {\n return start + end.substring(1);\n }\n if (slashes == 1) {\n return start + end;\n }\n return start + '/' + end;\n };\n /**\n * If URL has a trailing slash, remove it, otherwise return the URL as is. The\n * method looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param url URL string\n *\n * @returns Returns a URL string after removing the trailing slash if one exists, otherwise\n * returns the string as is.\n */\n Location.stripTrailingSlash = function (url) {\n var match = url.match(/#|\\?|$/);\n var pathEndIdx = match && match.index || url.length;\n var droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);\n return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);\n };\n var Location_1;\n Location = Location_1 = __decorate([\n Injectable(),\n __metadata(\"design:paramtypes\", [LocationStrategy])\n ], Location);\n return Location;\n}());\nfunction _stripBaseHref(baseHref, url) {\n return baseHref && url.startsWith(baseHref) ? url.substring(baseHref.length) : url;\n}\nfunction _stripIndexHtml(url) {\n return url.replace(/\\/index.html$/, '');\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)\n * of the browser's URL.\n *\n * For instance, if you call `location.go('/foo')`, the browser's URL will become\n * `example.com#/foo`.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/hash_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nvar HashLocationStrategy = /** @class */ (function (_super) {\n __extends(HashLocationStrategy, _super);\n function HashLocationStrategy(_platformLocation, _baseHref) {\n var _this = _super.call(this) || this;\n _this._platformLocation = _platformLocation;\n _this._baseHref = '';\n if (_baseHref != null) {\n _this._baseHref = _baseHref;\n }\n return _this;\n }\n HashLocationStrategy.prototype.onPopState = function (fn) {\n this._platformLocation.onPopState(fn);\n this._platformLocation.onHashChange(fn);\n };\n HashLocationStrategy.prototype.getBaseHref = function () { return this._baseHref; };\n HashLocationStrategy.prototype.path = function (includeHash) {\n if (includeHash === void 0) { includeHash = false; }\n // the hash value is always prefixed with a `#`\n // and if it is empty then it will stay empty\n var path = this._platformLocation.hash;\n if (path == null)\n path = '#';\n return path.length > 0 ? path.substring(1) : path;\n };\n HashLocationStrategy.prototype.prepareExternalUrl = function (internal) {\n var url = Location.joinWithSlash(this._baseHref, internal);\n return url.length > 0 ? ('#' + url) : url;\n };\n HashLocationStrategy.prototype.pushState = function (state, title, path, queryParams) {\n var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));\n if (url.length == 0) {\n url = this._platformLocation.pathname;\n }\n this._platformLocation.pushState(state, title, url);\n };\n HashLocationStrategy.prototype.replaceState = function (state, title, path, queryParams) {\n var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));\n if (url.length == 0) {\n url = this._platformLocation.pathname;\n }\n this._platformLocation.replaceState(state, title, url);\n };\n HashLocationStrategy.prototype.forward = function () { this._platformLocation.forward(); };\n HashLocationStrategy.prototype.back = function () { this._platformLocation.back(); };\n HashLocationStrategy = __decorate([\n Injectable(),\n __param(1, Optional()), __param(1, Inject(APP_BASE_HREF)),\n __metadata(\"design:paramtypes\", [PlatformLocation, String])\n ], HashLocationStrategy);\n return HashLocationStrategy;\n}(LocationStrategy));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the\n * browser's URL.\n *\n * If you're using `PathLocationStrategy`, you must provide a {@link APP_BASE_HREF}\n * or add a base element to the document. This URL prefix that will be preserved\n * when generating and recognizing URLs.\n *\n * For instance, if you provide an `APP_BASE_HREF` of `'/my/app'` and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * Similarly, if you add `` to the document and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nvar PathLocationStrategy = /** @class */ (function (_super) {\n __extends(PathLocationStrategy, _super);\n function PathLocationStrategy(_platformLocation, href) {\n var _this = _super.call(this) || this;\n _this._platformLocation = _platformLocation;\n if (href == null) {\n href = _this._platformLocation.getBaseHrefFromDOM();\n }\n if (href == null) {\n throw new Error(\"No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.\");\n }\n _this._baseHref = href;\n return _this;\n }\n PathLocationStrategy.prototype.onPopState = function (fn) {\n this._platformLocation.onPopState(fn);\n this._platformLocation.onHashChange(fn);\n };\n PathLocationStrategy.prototype.getBaseHref = function () { return this._baseHref; };\n PathLocationStrategy.prototype.prepareExternalUrl = function (internal) {\n return Location.joinWithSlash(this._baseHref, internal);\n };\n PathLocationStrategy.prototype.path = function (includeHash) {\n if (includeHash === void 0) { includeHash = false; }\n var pathname = this._platformLocation.pathname +\n Location.normalizeQueryParams(this._platformLocation.search);\n var hash = this._platformLocation.hash;\n return hash && includeHash ? \"\" + pathname + hash : pathname;\n };\n PathLocationStrategy.prototype.pushState = function (state, title, url, queryParams) {\n var externalUrl = this.prepareExternalUrl(url + Location.normalizeQueryParams(queryParams));\n this._platformLocation.pushState(state, title, externalUrl);\n };\n PathLocationStrategy.prototype.replaceState = function (state, title, url, queryParams) {\n var externalUrl = this.prepareExternalUrl(url + Location.normalizeQueryParams(queryParams));\n this._platformLocation.replaceState(state, title, externalUrl);\n };\n PathLocationStrategy.prototype.forward = function () { this._platformLocation.forward(); };\n PathLocationStrategy.prototype.back = function () { this._platformLocation.back(); };\n PathLocationStrategy = __decorate([\n Injectable(),\n __param(1, Optional()), __param(1, Inject(APP_BASE_HREF)),\n __metadata(\"design:paramtypes\", [PlatformLocation, String])\n ], PathLocationStrategy);\n return PathLocationStrategy;\n}(LocationStrategy));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// THIS CODE IS GENERATED - DO NOT MODIFY\n// See angular/tools/gulp-tasks/cldr/extract.js\nvar u = undefined;\nfunction plural(n) {\n var i = Math.floor(Math.abs(n)), v = n.toString().replace(/^[^.]*\\.?/, '').length;\n if (i === 1 && v === 0)\n return 1;\n return 5;\n}\nvar localeEn = [\n 'en', [['a', 'p'], ['AM', 'PM'], u], [['AM', 'PM'], u, u],\n [\n ['S', 'M', 'T', 'W', 'T', 'F', 'S'], ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],\n ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],\n ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa']\n ],\n u,\n [\n ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D'],\n ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],\n [\n 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September',\n 'October', 'November', 'December'\n ]\n ],\n u, [['B', 'A'], ['BC', 'AD'], ['Before Christ', 'Anno Domini']], 0, [6, 0],\n ['M/d/yy', 'MMM d, y', 'MMMM d, y', 'EEEE, MMMM d, y'],\n ['h:mm a', 'h:mm:ss a', 'h:mm:ss a z', 'h:mm:ss a zzzz'], ['{1}, {0}', u, '{1} \\'at\\' {0}', u],\n ['.', ',', ';', '%', '+', '-', 'E', '×', '‰', '∞', 'NaN', ':'],\n ['#,##0.###', '#,##0%', '¤#,##0.00', '#E0'], '$', 'US Dollar', {}, plural\n];\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nvar LOCALE_DATA = {};\n/**\n * Register global data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n#i18n-pipes) to know how to import additional locale data.\n *\n * @publicApi\n */\n// The signature registerLocaleData(data: any, extraData?: any) is deprecated since v5.1\nfunction registerLocaleData(data, localeId, extraData) {\n if (typeof localeId !== 'string') {\n extraData = localeId;\n localeId = data[0 /* LocaleId */];\n }\n localeId = localeId.toLowerCase().replace(/_/g, '-');\n LOCALE_DATA[localeId] = data;\n if (extraData) {\n LOCALE_DATA[localeId][19 /* ExtraData */] = extraData;\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @internal */\nvar CURRENCIES_EN = {\n 'ADP': [undefined, undefined, 0],\n 'AFN': [undefined, undefined, 0],\n 'ALL': [undefined, undefined, 0],\n 'AMD': [undefined, undefined, 0],\n 'AOA': [undefined, 'Kz'],\n 'ARS': [undefined, '$'],\n 'AUD': ['A$', '$'],\n 'BAM': [undefined, 'KM'],\n 'BBD': [undefined, '$'],\n 'BDT': [undefined, '৳'],\n 'BHD': [undefined, undefined, 3],\n 'BIF': [undefined, undefined, 0],\n 'BMD': [undefined, '$'],\n 'BND': [undefined, '$'],\n 'BOB': [undefined, 'Bs'],\n 'BRL': ['R$'],\n 'BSD': [undefined, '$'],\n 'BWP': [undefined, 'P'],\n 'BYN': [undefined, 'р.', 2],\n 'BYR': [undefined, undefined, 0],\n 'BZD': [undefined, '$'],\n 'CAD': ['CA$', '$', 2],\n 'CHF': [undefined, undefined, 2],\n 'CLF': [undefined, undefined, 4],\n 'CLP': [undefined, '$', 0],\n 'CNY': ['CN¥', '¥'],\n 'COP': [undefined, '$', 0],\n 'CRC': [undefined, '₡', 2],\n 'CUC': [undefined, '$'],\n 'CUP': [undefined, '$'],\n 'CZK': [undefined, 'Kč', 2],\n 'DJF': [undefined, undefined, 0],\n 'DKK': [undefined, 'kr', 2],\n 'DOP': [undefined, '$'],\n 'EGP': [undefined, 'E£'],\n 'ESP': [undefined, '₧', 0],\n 'EUR': ['€'],\n 'FJD': [undefined, '$'],\n 'FKP': [undefined, '£'],\n 'GBP': ['£'],\n 'GEL': [undefined, '₾'],\n 'GIP': [undefined, '£'],\n 'GNF': [undefined, 'FG', 0],\n 'GTQ': [undefined, 'Q'],\n 'GYD': [undefined, '$', 0],\n 'HKD': ['HK$', '$'],\n 'HNL': [undefined, 'L'],\n 'HRK': [undefined, 'kn'],\n 'HUF': [undefined, 'Ft', 2],\n 'IDR': [undefined, 'Rp', 0],\n 'ILS': ['₪'],\n 'INR': ['₹'],\n 'IQD': [undefined, undefined, 0],\n 'IRR': [undefined, undefined, 0],\n 'ISK': [undefined, 'kr', 0],\n 'ITL': [undefined, undefined, 0],\n 'JMD': [undefined, '$'],\n 'JOD': [undefined, undefined, 3],\n 'JPY': ['¥', undefined, 0],\n 'KHR': [undefined, '៛'],\n 'KMF': [undefined, 'CF', 0],\n 'KPW': [undefined, '₩', 0],\n 'KRW': ['₩', undefined, 0],\n 'KWD': [undefined, undefined, 3],\n 'KYD': [undefined, '$'],\n 'KZT': [undefined, '₸'],\n 'LAK': [undefined, '₭', 0],\n 'LBP': [undefined, 'L£', 0],\n 'LKR': [undefined, 'Rs'],\n 'LRD': [undefined, '$'],\n 'LTL': [undefined, 'Lt'],\n 'LUF': [undefined, undefined, 0],\n 'LVL': [undefined, 'Ls'],\n 'LYD': [undefined, undefined, 3],\n 'MGA': [undefined, 'Ar', 0],\n 'MGF': [undefined, undefined, 0],\n 'MMK': [undefined, 'K', 0],\n 'MNT': [undefined, '₮', 0],\n 'MRO': [undefined, undefined, 0],\n 'MUR': [undefined, 'Rs', 0],\n 'MXN': ['MX$', '$'],\n 'MYR': [undefined, 'RM'],\n 'NAD': [undefined, '$'],\n 'NGN': [undefined, '₦'],\n 'NIO': [undefined, 'C$'],\n 'NOK': [undefined, 'kr', 2],\n 'NPR': [undefined, 'Rs'],\n 'NZD': ['NZ$', '$'],\n 'OMR': [undefined, undefined, 3],\n 'PHP': [undefined, '₱'],\n 'PKR': [undefined, 'Rs', 0],\n 'PLN': [undefined, 'zł'],\n 'PYG': [undefined, '₲', 0],\n 'RON': [undefined, 'lei'],\n 'RSD': [undefined, undefined, 0],\n 'RUB': [undefined, '₽'],\n 'RUR': [undefined, 'р.'],\n 'RWF': [undefined, 'RF', 0],\n 'SBD': [undefined, '$'],\n 'SEK': [undefined, 'kr', 2],\n 'SGD': [undefined, '$'],\n 'SHP': [undefined, '£'],\n 'SLL': [undefined, undefined, 0],\n 'SOS': [undefined, undefined, 0],\n 'SRD': [undefined, '$'],\n 'SSP': [undefined, '£'],\n 'STD': [undefined, undefined, 0],\n 'STN': [undefined, 'Db'],\n 'SYP': [undefined, '£', 0],\n 'THB': [undefined, '฿'],\n 'TMM': [undefined, undefined, 0],\n 'TND': [undefined, undefined, 3],\n 'TOP': [undefined, 'T$'],\n 'TRL': [undefined, undefined, 0],\n 'TRY': [undefined, '₺'],\n 'TTD': [undefined, '$'],\n 'TWD': ['NT$', '$', 2],\n 'TZS': [undefined, undefined, 0],\n 'UAH': [undefined, '₴'],\n 'UGX': [undefined, undefined, 0],\n 'USD': ['$'],\n 'UYI': [undefined, undefined, 0],\n 'UYU': [undefined, '$'],\n 'UZS': [undefined, undefined, 0],\n 'VEF': [undefined, 'Bs'],\n 'VND': ['₫', undefined, 0],\n 'VUV': [undefined, undefined, 0],\n 'XAF': ['FCFA', undefined, 0],\n 'XCD': ['EC$', '$'],\n 'XOF': ['CFA', undefined, 0],\n 'XPF': ['CFPF', undefined, 0],\n 'YER': [undefined, undefined, 0],\n 'ZAR': [undefined, 'R'],\n 'ZMK': [undefined, undefined, 0],\n 'ZMW': [undefined, 'ZK'],\n 'ZWD': [undefined, undefined, 0]\n};\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Format styles that can be used to represent numbers.\n * @see `getLocaleNumberFormat()`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nvar NumberFormatStyle;\n(function (NumberFormatStyle) {\n NumberFormatStyle[NumberFormatStyle[\"Decimal\"] = 0] = \"Decimal\";\n NumberFormatStyle[NumberFormatStyle[\"Percent\"] = 1] = \"Percent\";\n NumberFormatStyle[NumberFormatStyle[\"Currency\"] = 2] = \"Currency\";\n NumberFormatStyle[NumberFormatStyle[\"Scientific\"] = 3] = \"Scientific\";\n})(NumberFormatStyle || (NumberFormatStyle = {}));\n/**\n * Plurality cases used for translating plurals to different languages.\n *\n * @see `NgPlural`\n * @see `NgPluralCase`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi */\nvar Plural;\n(function (Plural) {\n Plural[Plural[\"Zero\"] = 0] = \"Zero\";\n Plural[Plural[\"One\"] = 1] = \"One\";\n Plural[Plural[\"Two\"] = 2] = \"Two\";\n Plural[Plural[\"Few\"] = 3] = \"Few\";\n Plural[Plural[\"Many\"] = 4] = \"Many\";\n Plural[Plural[\"Other\"] = 5] = \"Other\";\n})(Plural || (Plural = {}));\n/**\n * Context-dependant translation forms for strings.\n * Typically the standalone version is for the nominative form of the word,\n * and the format version is used for the genitive case.\n * @see [CLDR website](http://cldr.unicode.org/translation/date-time#TOC-Stand-Alone-vs.-Format-Styles)\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nvar FormStyle;\n(function (FormStyle) {\n FormStyle[FormStyle[\"Format\"] = 0] = \"Format\";\n FormStyle[FormStyle[\"Standalone\"] = 1] = \"Standalone\";\n})(FormStyle || (FormStyle = {}));\n/**\n * String widths available for translations.\n * The specific character widths are locale-specific.\n * Examples are given for the word \"Sunday\" in English.\n *\n * @publicApi\n */\nvar TranslationWidth;\n(function (TranslationWidth) {\n /** 1 character for `en-US`. For example: 'S' */\n TranslationWidth[TranslationWidth[\"Narrow\"] = 0] = \"Narrow\";\n /** 3 characters for `en-US`. For example: 'Sun' */\n TranslationWidth[TranslationWidth[\"Abbreviated\"] = 1] = \"Abbreviated\";\n /** Full length for `en-US`. For example: \"Sunday\" */\n TranslationWidth[TranslationWidth[\"Wide\"] = 2] = \"Wide\";\n /** 2 characters for `en-US`, For example: \"Su\" */\n TranslationWidth[TranslationWidth[\"Short\"] = 3] = \"Short\";\n})(TranslationWidth || (TranslationWidth = {}));\n/**\n * String widths available for date-time formats.\n * The specific character widths are locale-specific.\n * Examples are given for `en-US`.\n *\n * @see `getLocaleDateFormat()`\n * @see `getLocaleTimeFormat()``\n * @see `getLocaleDateTimeFormat()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @publicApi\n */\nvar FormatWidth;\n(function (FormatWidth) {\n /**\n * For `en-US`, 'M/d/yy, h:mm a'`\n * (Example: `6/15/15, 9:03 AM`)\n */\n FormatWidth[FormatWidth[\"Short\"] = 0] = \"Short\";\n /**\n * For `en-US`, `'MMM d, y, h:mm:ss a'`\n * (Example: `Jun 15, 2015, 9:03:01 AM`)\n */\n FormatWidth[FormatWidth[\"Medium\"] = 1] = \"Medium\";\n /**\n * For `en-US`, `'MMMM d, y, h:mm:ss a z'`\n * (Example: `June 15, 2015 at 9:03:01 AM GMT+1`)\n */\n FormatWidth[FormatWidth[\"Long\"] = 2] = \"Long\";\n /**\n * For `en-US`, `'EEEE, MMMM d, y, h:mm:ss a zzzz'`\n * (Example: `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00`)\n */\n FormatWidth[FormatWidth[\"Full\"] = 3] = \"Full\";\n})(FormatWidth || (FormatWidth = {}));\n/**\n * Symbols that can be used to replace placeholders in number patterns.\n * Examples are based on `en-US` values.\n *\n * @see `getLocaleNumberSymbol()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nvar NumberSymbol;\n(function (NumberSymbol) {\n /**\n * Decimal separator.\n * For `en-US`, the dot character.\n * Example : 2,345`.`67\n */\n NumberSymbol[NumberSymbol[\"Decimal\"] = 0] = \"Decimal\";\n /**\n * Grouping separator, typically for thousands.\n * For `en-US`, the comma character.\n * Example: 2`,`345.67\n */\n NumberSymbol[NumberSymbol[\"Group\"] = 1] = \"Group\";\n /**\n * List-item separator.\n * Example: \"one, two, and three\"\n */\n NumberSymbol[NumberSymbol[\"List\"] = 2] = \"List\";\n /**\n * Sign for percentage (out of 100).\n * Example: 23.4%\n */\n NumberSymbol[NumberSymbol[\"PercentSign\"] = 3] = \"PercentSign\";\n /**\n * Sign for positive numbers.\n * Example: +23\n */\n NumberSymbol[NumberSymbol[\"PlusSign\"] = 4] = \"PlusSign\";\n /**\n * Sign for negative numbers.\n * Example: -23\n */\n NumberSymbol[NumberSymbol[\"MinusSign\"] = 5] = \"MinusSign\";\n /**\n * Computer notation for exponential value (n times a power of 10).\n * Example: 1.2E3\n */\n NumberSymbol[NumberSymbol[\"Exponential\"] = 6] = \"Exponential\";\n /**\n * Human-readable format of exponential.\n * Example: 1.2x103\n */\n NumberSymbol[NumberSymbol[\"SuperscriptingExponent\"] = 7] = \"SuperscriptingExponent\";\n /**\n * Sign for permille (out of 1000).\n * Example: 23.4‰\n */\n NumberSymbol[NumberSymbol[\"PerMille\"] = 8] = \"PerMille\";\n /**\n * Infinity, can be used with plus and minus.\n * Example: ∞, +∞, -∞\n */\n NumberSymbol[NumberSymbol[\"Infinity\"] = 9] = \"Infinity\";\n /**\n * Not a number.\n * Example: NaN\n */\n NumberSymbol[NumberSymbol[\"NaN\"] = 10] = \"NaN\";\n /**\n * Symbol used between time units.\n * Example: 10:52\n */\n NumberSymbol[NumberSymbol[\"TimeSeparator\"] = 11] = \"TimeSeparator\";\n /**\n * Decimal separator for currency values (fallback to `Decimal`).\n * Example: $2,345.67\n */\n NumberSymbol[NumberSymbol[\"CurrencyDecimal\"] = 12] = \"CurrencyDecimal\";\n /**\n * Group separator for currency values (fallback to `Group`).\n * Example: $2,345.67\n */\n NumberSymbol[NumberSymbol[\"CurrencyGroup\"] = 13] = \"CurrencyGroup\";\n})(NumberSymbol || (NumberSymbol = {}));\n/**\n * The value for each day of the week, based on the `en-US` locale\n *\n * @publicApi\n */\nvar WeekDay;\n(function (WeekDay) {\n WeekDay[WeekDay[\"Sunday\"] = 0] = \"Sunday\";\n WeekDay[WeekDay[\"Monday\"] = 1] = \"Monday\";\n WeekDay[WeekDay[\"Tuesday\"] = 2] = \"Tuesday\";\n WeekDay[WeekDay[\"Wednesday\"] = 3] = \"Wednesday\";\n WeekDay[WeekDay[\"Thursday\"] = 4] = \"Thursday\";\n WeekDay[WeekDay[\"Friday\"] = 5] = \"Friday\";\n WeekDay[WeekDay[\"Saturday\"] = 6] = \"Saturday\";\n})(WeekDay || (WeekDay = {}));\n/**\n * Retrieves the locale ID from the currently loaded locale.\n * The loaded locale could be, for example, a global one rather than a regional one.\n * @param locale A locale code, such as `fr-FR`.\n * @returns The locale code. For example, `fr`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleId(locale) {\n return findLocaleData(locale)[0 /* LocaleId */];\n}\n/**\n * Retrieves day period strings for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized period strings. For example, `[AM, PM]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleDayPeriods(locale, formStyle, width) {\n var data = findLocaleData(locale);\n var amPmData = [data[1 /* DayPeriodsFormat */], data[2 /* DayPeriodsStandalone */]];\n var amPm = getLastDefinedValue(amPmData, formStyle);\n return getLastDefinedValue(amPm, width);\n}\n/**\n * Retrieves days of the week for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example,`[Sunday, Monday, ... Saturday]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleDayNames(locale, formStyle, width) {\n var data = findLocaleData(locale);\n var daysData = [data[3 /* DaysFormat */], data[4 /* DaysStandalone */]];\n var days = getLastDefinedValue(daysData, formStyle);\n return getLastDefinedValue(days, width);\n}\n/**\n * Retrieves months of the year for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example, `[January, February, ...]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleMonthNames(locale, formStyle, width) {\n var data = findLocaleData(locale);\n var monthsData = [data[5 /* MonthsFormat */], data[6 /* MonthsStandalone */]];\n var months = getLastDefinedValue(monthsData, formStyle);\n return getLastDefinedValue(months, width);\n}\n/**\n * Retrieves Gregorian-calendar eras for the given locale.\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n\n * @returns An array of localized era strings.\n * For example, `[AD, BC]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleEraNames(locale, width) {\n var data = findLocaleData(locale);\n var erasData = data[7 /* Eras */];\n return getLastDefinedValue(erasData, width);\n}\n/**\n * Retrieves the first day of the week for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns A day index number, using the 0-based week-day index for `en-US`\n * (Sunday = 0, Monday = 1, ...).\n * For example, for `fr-FR`, returns 1 to indicate that the first day is Monday.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleFirstDayOfWeek(locale) {\n var data = findLocaleData(locale);\n return data[8 /* FirstDayOfWeek */];\n}\n/**\n * Range of week days that are considered the week-end for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The range of day values, `[startDay, endDay]`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleWeekEndRange(locale) {\n var data = findLocaleData(locale);\n return data[9 /* WeekendRange */];\n}\n/**\n * Retrieves a localized date-value formating string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formating string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleDateFormat(locale, width) {\n var data = findLocaleData(locale);\n return getLastDefinedValue(data[10 /* DateFormat */], width);\n}\n/**\n * Retrieves a localized time-value formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n\n * @publicApi\n */\nfunction getLocaleTimeFormat(locale, width) {\n var data = findLocaleData(locale);\n return getLastDefinedValue(data[11 /* TimeFormat */], width);\n}\n/**\n * Retrieves a localized date-time formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleDateTimeFormat(locale, width) {\n var data = findLocaleData(locale);\n var dateTimeFormatData = data[12 /* DateTimeFormat */];\n return getLastDefinedValue(dateTimeFormatData, width);\n}\n/**\n * Retrieves a localized number symbol that can be used to replace placeholders in number formats.\n * @param locale The locale code.\n * @param symbol The symbol to localize.\n * @returns The character for the localized symbol.\n * @see `NumberSymbol`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleNumberSymbol(locale, symbol) {\n var data = findLocaleData(locale);\n var res = data[13 /* NumberSymbols */][symbol];\n if (typeof res === 'undefined') {\n if (symbol === NumberSymbol.CurrencyDecimal) {\n return data[13 /* NumberSymbols */][NumberSymbol.Decimal];\n }\n else if (symbol === NumberSymbol.CurrencyGroup) {\n return data[13 /* NumberSymbols */][NumberSymbol.Group];\n }\n }\n return res;\n}\n/**\n * Retrieves a number format for a given locale.\n *\n * Numbers are formatted using patterns, like `#,###.00`. For example, the pattern `#,###.00`\n * when used to format the number 12345.678 could result in \"12'345,678\". That would happen if the\n * grouping separator for your language is an apostrophe, and the decimal separator is a comma.\n *\n * Important: The characters `.` `,` `0` `#` (and others below) are special placeholders\n * that stand for the decimal separator, and so on, and are NOT real characters.\n * You must NOT \"translate\" the placeholders. For example, don't change `.` to `,` even though in\n * your language the decimal point is written with a comma. The symbols should be replaced by the\n * local equivalents, using the appropriate `NumberSymbol` for your language.\n *\n * Here are the special characters used in number patterns:\n *\n * | Symbol | Meaning |\n * |--------|---------|\n * | . | Replaced automatically by the character used for the decimal point. |\n * | , | Replaced by the \"grouping\" (thousands) separator. |\n * | 0 | Replaced by a digit (or zero if there aren't enough digits). |\n * | # | Replaced by a digit (or nothing if there aren't enough). |\n * | ¤ | Replaced by a currency symbol, such as $ or USD. |\n * | % | Marks a percent format. The % symbol may change position, but must be retained. |\n * | E | Marks a scientific format. The E symbol may change position, but must be retained. |\n * | ' | Special characters used as literal characters are quoted with ASCII single quotes. |\n *\n * @param locale A locale code for the locale format rules to use.\n * @param type The type of numeric value to be formatted (such as `Decimal` or `Currency`.)\n * @returns The localized format string.\n * @see `NumberFormatStyle`\n * @see [CLDR website](http://cldr.unicode.org/translation/number-patterns)\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleNumberFormat(locale, type) {\n var data = findLocaleData(locale);\n return data[14 /* NumberFormats */][type];\n}\n/**\n * Retrieves the symbol used to represent the currency for the main country\n * corresponding to a given locale. For example, '$' for `en-US`.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The localized symbol character,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleCurrencySymbol(locale) {\n var data = findLocaleData(locale);\n return data[15 /* CurrencySymbol */] || null;\n}\n/**\n * Retrieves the name of the currency for the main country corresponding\n * to a given locale. For example, 'US Dollar' for `en-US`.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency name,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleCurrencyName(locale) {\n var data = findLocaleData(locale);\n return data[16 /* CurrencyName */] || null;\n}\n/**\n * Retrieves the currency values for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency values.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n */\nfunction getLocaleCurrencies(locale) {\n var data = findLocaleData(locale);\n return data[17 /* Currencies */];\n}\n/**\n * Retrieves the plural function used by ICU expressions to determine the plural case to use\n * for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The plural function for the locale.\n * @see `NgPlural`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocalePluralCase(locale) {\n var data = findLocaleData(locale);\n return data[18 /* PluralCase */];\n}\nfunction checkFullData(data) {\n if (!data[19 /* ExtraData */]) {\n throw new Error(\"Missing extra locale data for the locale \\\"\" + data[0 /* LocaleId */] + \"\\\". Use \\\"registerLocaleData\\\" to load new data. See the \\\"I18n guide\\\" on angular.io to know more.\");\n }\n}\n/**\n * Retrieves locale-specific rules used to determine which day period to use\n * when more than one period is defined for a locale.\n *\n * There is a rule for each defined day period. The\n * first rule is applied to the first day period and so on.\n * Fall back to AM/PM when no rules are available.\n *\n * A rule can specify a period as time range, or as a single time value.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n#i18n-pipes).\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The rules for the locale, a single time value or array of *from-time, to-time*,\n * or null if no periods are available.\n *\n * @see `getLocaleExtraDayPeriods()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriodRules(locale) {\n var data = findLocaleData(locale);\n checkFullData(data);\n var rules = data[19 /* ExtraData */][2 /* ExtraDayPeriodsRules */] || [];\n return rules.map(function (rule) {\n if (typeof rule === 'string') {\n return extractTime(rule);\n }\n return [extractTime(rule[0]), extractTime(rule[1])];\n });\n}\n/**\n * Retrieves locale-specific day periods, which indicate roughly how a day is broken up\n * in different languages.\n * For example, for `en-US`, periods are morning, noon, afternoon, evening, and midnight.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n#i18n-pipes).\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns The translated day-period strings.\n * @see `getLocaleExtraDayPeriodRules()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriods(locale, formStyle, width) {\n var data = findLocaleData(locale);\n checkFullData(data);\n var dayPeriodsData = [\n data[19 /* ExtraData */][0 /* ExtraDayPeriodFormats */],\n data[19 /* ExtraData */][1 /* ExtraDayPeriodStandalone */]\n ];\n var dayPeriods = getLastDefinedValue(dayPeriodsData, formStyle) || [];\n return getLastDefinedValue(dayPeriods, width) || [];\n}\n/**\n * Retrieves the first value that is defined in an array, going backwards from an index position.\n *\n * To avoid repeating the same data (as when the \"format\" and \"standalone\" forms are the same)\n * add the first value to the locale data arrays, and add other values only if they are different.\n *\n * @param data The data array to retrieve from.\n * @param index A 0-based index into the array to start from.\n * @returns The value immediately before the given index position.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getLastDefinedValue(data, index) {\n for (var i = index; i > -1; i--) {\n if (typeof data[i] !== 'undefined') {\n return data[i];\n }\n }\n throw new Error('Locale data API: locale data undefined');\n}\n/**\n * Extracts the hours and minutes from a string like \"15:45\"\n */\nfunction extractTime(time) {\n var _a = __read(time.split(':'), 2), h = _a[0], m = _a[1];\n return { hours: +h, minutes: +m };\n}\n/**\n * Finds the locale data for a given locale.\n *\n * @param locale The locale code.\n * @returns The locale data.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction findLocaleData(locale) {\n var normalizedLocale = locale.toLowerCase().replace(/_/g, '-');\n var match = LOCALE_DATA[normalizedLocale];\n if (match) {\n return match;\n }\n // let's try to find a parent locale\n var parentLocale = normalizedLocale.split('-')[0];\n match = LOCALE_DATA[parentLocale];\n if (match) {\n return match;\n }\n if (parentLocale === 'en') {\n return localeEn;\n }\n throw new Error(\"Missing locale data for the locale \\\"\" + locale + \"\\\".\");\n}\n/**\n * Retrieves the currency symbol for a given currency code.\n *\n * For example, for the default `en-US` locale, the code `USD` can\n * be represented by the narrow symbol `$` or the wide symbol `US$`.\n *\n * @param code The currency code.\n * @param format The format, `wide` or `narrow`.\n * @param locale A locale code for the locale format rules to use.\n *\n * @returns The symbol, or the currency code if no symbol is available.0\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getCurrencySymbol(code, format, locale) {\n if (locale === void 0) { locale = 'en'; }\n var currency = getLocaleCurrencies(locale)[code] || CURRENCIES_EN[code] || [];\n var symbolNarrow = currency[1 /* SymbolNarrow */];\n if (format === 'narrow' && typeof symbolNarrow === 'string') {\n return symbolNarrow;\n }\n return currency[0 /* Symbol */] || code;\n}\n// Most currencies have cents, that's why the default is 2\nvar DEFAULT_NB_OF_CURRENCY_DIGITS = 2;\n/**\n * Reports the number of decimal digits for a given currency.\n * The value depends upon the presence of cents in that particular currency.\n *\n * @param code The currency code.\n * @returns The number of decimal digits, typically 0 or 2.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction getNumberOfCurrencyDigits(code) {\n var digits;\n var currency = CURRENCIES_EN[code];\n if (currency) {\n digits = currency[2 /* NbOfDigits */];\n }\n return typeof digits === 'number' ? digits : DEFAULT_NB_OF_CURRENCY_DIGITS;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar ISO8601_DATE_REGEX = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n// 1 2 3 4 5 6 7 8 9 10 11\nvar NAMED_FORMATS = {};\nvar DATE_FORMATS_SPLIT = /((?:[^GyMLwWdEabBhHmsSzZO']+)|(?:'(?:[^']|'')*')|(?:G{1,5}|y{1,4}|M{1,5}|L{1,5}|w{1,2}|W{1}|d{1,2}|E{1,6}|a{1,5}|b{1,5}|B{1,5}|h{1,2}|H{1,2}|m{1,2}|s{1,2}|S{1,3}|z{1,4}|Z{1,5}|O{1,4}))([\\s\\S]*)/;\nvar ZoneWidth;\n(function (ZoneWidth) {\n ZoneWidth[ZoneWidth[\"Short\"] = 0] = \"Short\";\n ZoneWidth[ZoneWidth[\"ShortGMT\"] = 1] = \"ShortGMT\";\n ZoneWidth[ZoneWidth[\"Long\"] = 2] = \"Long\";\n ZoneWidth[ZoneWidth[\"Extended\"] = 3] = \"Extended\";\n})(ZoneWidth || (ZoneWidth = {}));\nvar DateType;\n(function (DateType) {\n DateType[DateType[\"FullYear\"] = 0] = \"FullYear\";\n DateType[DateType[\"Month\"] = 1] = \"Month\";\n DateType[DateType[\"Date\"] = 2] = \"Date\";\n DateType[DateType[\"Hours\"] = 3] = \"Hours\";\n DateType[DateType[\"Minutes\"] = 4] = \"Minutes\";\n DateType[DateType[\"Seconds\"] = 5] = \"Seconds\";\n DateType[DateType[\"FractionalSeconds\"] = 6] = \"FractionalSeconds\";\n DateType[DateType[\"Day\"] = 7] = \"Day\";\n})(DateType || (DateType = {}));\nvar TranslationType;\n(function (TranslationType) {\n TranslationType[TranslationType[\"DayPeriods\"] = 0] = \"DayPeriods\";\n TranslationType[TranslationType[\"Days\"] = 1] = \"Days\";\n TranslationType[TranslationType[\"Months\"] = 2] = \"Months\";\n TranslationType[TranslationType[\"Eras\"] = 3] = \"Eras\";\n})(TranslationType || (TranslationType = {}));\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date according to locale rules.\n *\n * @param value The date to format, as a Date, or a number (milliseconds since UTC epoch)\n * or an [ISO date-time string](https://www.w3.org/TR/NOTE-datetime).\n * @param format The date-time components to include. See `DatePipe` for details.\n * @param locale A locale code for the locale format rules to use.\n * @param timezone The time zone. A time zone offset from GMT (such as `'+0430'`),\n * or a standard UTC/GMT or continental US time zone abbreviation.\n * If not specified, uses host system settings.\n *\n * @returns The formatted date string.\n *\n * @see `DatePipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction formatDate(value, format, locale, timezone) {\n var date = toDate(value);\n var namedFormat = getNamedFormat(locale, format);\n format = namedFormat || format;\n var parts = [];\n var match;\n while (format) {\n match = DATE_FORMATS_SPLIT.exec(format);\n if (match) {\n parts = parts.concat(match.slice(1));\n var part = parts.pop();\n if (!part) {\n break;\n }\n format = part;\n }\n else {\n parts.push(format);\n break;\n }\n }\n var dateTimezoneOffset = date.getTimezoneOffset();\n if (timezone) {\n dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n date = convertTimezoneToLocal(date, timezone, true);\n }\n var text = '';\n parts.forEach(function (value) {\n var dateFormatter = getDateFormatter(value);\n text += dateFormatter ?\n dateFormatter(date, locale, dateTimezoneOffset) :\n value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n });\n return text;\n}\nfunction getNamedFormat(locale, format) {\n var localeId = getLocaleId(locale);\n NAMED_FORMATS[localeId] = NAMED_FORMATS[localeId] || {};\n if (NAMED_FORMATS[localeId][format]) {\n return NAMED_FORMATS[localeId][format];\n }\n var formatValue = '';\n switch (format) {\n case 'shortDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Short);\n break;\n case 'mediumDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Medium);\n break;\n case 'longDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Long);\n break;\n case 'fullDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Full);\n break;\n case 'shortTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Short);\n break;\n case 'mediumTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Medium);\n break;\n case 'longTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Long);\n break;\n case 'fullTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Full);\n break;\n case 'short':\n var shortTime = getNamedFormat(locale, 'shortTime');\n var shortDate = getNamedFormat(locale, 'shortDate');\n formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Short), [shortTime, shortDate]);\n break;\n case 'medium':\n var mediumTime = getNamedFormat(locale, 'mediumTime');\n var mediumDate = getNamedFormat(locale, 'mediumDate');\n formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Medium), [mediumTime, mediumDate]);\n break;\n case 'long':\n var longTime = getNamedFormat(locale, 'longTime');\n var longDate = getNamedFormat(locale, 'longDate');\n formatValue =\n formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Long), [longTime, longDate]);\n break;\n case 'full':\n var fullTime = getNamedFormat(locale, 'fullTime');\n var fullDate = getNamedFormat(locale, 'fullDate');\n formatValue =\n formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Full), [fullTime, fullDate]);\n break;\n }\n if (formatValue) {\n NAMED_FORMATS[localeId][format] = formatValue;\n }\n return formatValue;\n}\nfunction formatDateTime(str, opt_values) {\n if (opt_values) {\n str = str.replace(/\\{([^}]+)}/g, function (match, key) {\n return (opt_values != null && key in opt_values) ? opt_values[key] : match;\n });\n }\n return str;\n}\nfunction padNumber(num, digits, minusSign, trim, negWrap) {\n if (minusSign === void 0) { minusSign = '-'; }\n var neg = '';\n if (num < 0 || (negWrap && num <= 0)) {\n if (negWrap) {\n num = -num + 1;\n }\n else {\n num = -num;\n neg = minusSign;\n }\n }\n var strNum = String(num);\n while (strNum.length < digits) {\n strNum = '0' + strNum;\n }\n if (trim) {\n strNum = strNum.substr(strNum.length - digits);\n }\n return neg + strNum;\n}\nfunction formatFractionalSeconds(milliseconds, digits) {\n var strMs = padNumber(milliseconds, 3);\n return strMs.substr(0, digits);\n}\n/**\n * Returns a date formatter that transforms a date into its locale digit representation\n */\nfunction dateGetter(name, size, offset, trim, negWrap) {\n if (offset === void 0) { offset = 0; }\n if (trim === void 0) { trim = false; }\n if (negWrap === void 0) { negWrap = false; }\n return function (date, locale) {\n var part = getDatePart(name, date);\n if (offset > 0 || part > -offset) {\n part += offset;\n }\n if (name === DateType.Hours) {\n if (part === 0 && offset === -12) {\n part = 12;\n }\n }\n else if (name === DateType.FractionalSeconds) {\n return formatFractionalSeconds(part, size);\n }\n var localeMinus = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n return padNumber(part, size, localeMinus, trim, negWrap);\n };\n}\nfunction getDatePart(part, date) {\n switch (part) {\n case DateType.FullYear:\n return date.getFullYear();\n case DateType.Month:\n return date.getMonth();\n case DateType.Date:\n return date.getDate();\n case DateType.Hours:\n return date.getHours();\n case DateType.Minutes:\n return date.getMinutes();\n case DateType.Seconds:\n return date.getSeconds();\n case DateType.FractionalSeconds:\n return date.getMilliseconds();\n case DateType.Day:\n return date.getDay();\n default:\n throw new Error(\"Unknown DateType value \\\"\" + part + \"\\\".\");\n }\n}\n/**\n * Returns a date formatter that transforms a date into its locale string representation\n */\nfunction dateStrGetter(name, width, form, extended) {\n if (form === void 0) { form = FormStyle.Format; }\n if (extended === void 0) { extended = false; }\n return function (date, locale) {\n return getDateTranslation(date, locale, name, width, form, extended);\n };\n}\n/**\n * Returns the locale translation of a date for a given form, type and width\n */\nfunction getDateTranslation(date, locale, name, width, form, extended) {\n switch (name) {\n case TranslationType.Months:\n return getLocaleMonthNames(locale, form, width)[date.getMonth()];\n case TranslationType.Days:\n return getLocaleDayNames(locale, form, width)[date.getDay()];\n case TranslationType.DayPeriods:\n var currentHours_1 = date.getHours();\n var currentMinutes_1 = date.getMinutes();\n if (extended) {\n var rules = getLocaleExtraDayPeriodRules(locale);\n var dayPeriods_1 = getLocaleExtraDayPeriods(locale, form, width);\n var result_1;\n rules.forEach(function (rule, index) {\n if (Array.isArray(rule)) {\n // morning, afternoon, evening, night\n var _a = rule[0], hoursFrom = _a.hours, minutesFrom = _a.minutes;\n var _b = rule[1], hoursTo = _b.hours, minutesTo = _b.minutes;\n if (currentHours_1 >= hoursFrom && currentMinutes_1 >= minutesFrom &&\n (currentHours_1 < hoursTo ||\n (currentHours_1 === hoursTo && currentMinutes_1 < minutesTo))) {\n result_1 = dayPeriods_1[index];\n }\n }\n else { // noon or midnight\n var hours = rule.hours, minutes = rule.minutes;\n if (hours === currentHours_1 && minutes === currentMinutes_1) {\n result_1 = dayPeriods_1[index];\n }\n }\n });\n if (result_1) {\n return result_1;\n }\n }\n // if no rules for the day periods, we use am/pm by default\n return getLocaleDayPeriods(locale, form, width)[currentHours_1 < 12 ? 0 : 1];\n case TranslationType.Eras:\n return getLocaleEraNames(locale, width)[date.getFullYear() <= 0 ? 0 : 1];\n default:\n // This default case is not needed by TypeScript compiler, as the switch is exhaustive.\n // However Closure Compiler does not understand that and reports an error in typed mode.\n // The `throw new Error` below works around the problem, and the unexpected: never variable\n // makes sure tsc still checks this code is unreachable.\n var unexpected = name;\n throw new Error(\"unexpected translation type \" + unexpected);\n }\n}\n/**\n * Returns a date formatter that transforms a date and an offset into a timezone with ISO8601 or\n * GMT format depending on the width (eg: short = +0430, short:GMT = GMT+4, long = GMT+04:30,\n * extended = +04:30)\n */\nfunction timeZoneGetter(width) {\n return function (date, locale, offset) {\n var zone = -1 * offset;\n var minusSign = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n var hours = zone > 0 ? Math.floor(zone / 60) : Math.ceil(zone / 60);\n switch (width) {\n case ZoneWidth.Short:\n return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n case ZoneWidth.ShortGMT:\n return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 1, minusSign);\n case ZoneWidth.Long:\n return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n case ZoneWidth.Extended:\n if (offset === 0) {\n return 'Z';\n }\n else {\n return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n }\n default:\n throw new Error(\"Unknown zone width \\\"\" + width + \"\\\"\");\n }\n };\n}\nvar JANUARY = 0;\nvar THURSDAY = 4;\nfunction getFirstThursdayOfYear(year) {\n var firstDayOfYear = (new Date(year, JANUARY, 1)).getDay();\n return new Date(year, 0, 1 + ((firstDayOfYear <= THURSDAY) ? THURSDAY : THURSDAY + 7) - firstDayOfYear);\n}\nfunction getThursdayThisWeek(datetime) {\n return new Date(datetime.getFullYear(), datetime.getMonth(), datetime.getDate() + (THURSDAY - datetime.getDay()));\n}\nfunction weekGetter(size, monthBased) {\n if (monthBased === void 0) { monthBased = false; }\n return function (date, locale) {\n var result;\n if (monthBased) {\n var nbDaysBefore1stDayOfMonth = new Date(date.getFullYear(), date.getMonth(), 1).getDay() - 1;\n var today = date.getDate();\n result = 1 + Math.floor((today + nbDaysBefore1stDayOfMonth) / 7);\n }\n else {\n var firstThurs = getFirstThursdayOfYear(date.getFullYear());\n var thisThurs = getThursdayThisWeek(date);\n var diff = thisThurs.getTime() - firstThurs.getTime();\n result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n }\n return padNumber(result, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n };\n}\nvar DATE_FORMATS = {};\n// Based on CLDR formats:\n// See complete list: http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table\n// See also explanations: http://cldr.unicode.org/translation/date-time\n// TODO(ocombe): support all missing cldr formats: Y, U, Q, D, F, e, c, j, J, C, A, v, V, X, x\nfunction getDateFormatter(format) {\n if (DATE_FORMATS[format]) {\n return DATE_FORMATS[format];\n }\n var formatter;\n switch (format) {\n // Era name (AD/BC)\n case 'G':\n case 'GG':\n case 'GGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Abbreviated);\n break;\n case 'GGGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Wide);\n break;\n case 'GGGGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Narrow);\n break;\n // 1 digit representation of the year, e.g. (AD 1 => 1, AD 199 => 199)\n case 'y':\n formatter = dateGetter(DateType.FullYear, 1, 0, false, true);\n break;\n // 2 digit representation of the year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n case 'yy':\n formatter = dateGetter(DateType.FullYear, 2, 0, true, true);\n break;\n // 3 digit representation of the year, padded (000-999). (e.g. AD 2001 => 01, AD 2010 => 10)\n case 'yyy':\n formatter = dateGetter(DateType.FullYear, 3, 0, false, true);\n break;\n // 4 digit representation of the year (e.g. AD 1 => 0001, AD 2010 => 2010)\n case 'yyyy':\n formatter = dateGetter(DateType.FullYear, 4, 0, false, true);\n break;\n // Month of the year (1-12), numeric\n case 'M':\n case 'L':\n formatter = dateGetter(DateType.Month, 1, 1);\n break;\n case 'MM':\n case 'LL':\n formatter = dateGetter(DateType.Month, 2, 1);\n break;\n // Month of the year (January, ...), string, format\n case 'MMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated);\n break;\n case 'MMMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Wide);\n break;\n case 'MMMMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Narrow);\n break;\n // Month of the year (January, ...), string, standalone\n case 'LLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated, FormStyle.Standalone);\n break;\n case 'LLLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Wide, FormStyle.Standalone);\n break;\n case 'LLLLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Narrow, FormStyle.Standalone);\n break;\n // Week of the year (1, ... 52)\n case 'w':\n formatter = weekGetter(1);\n break;\n case 'ww':\n formatter = weekGetter(2);\n break;\n // Week of the month (1, ...)\n case 'W':\n formatter = weekGetter(1, true);\n break;\n // Day of the month (1-31)\n case 'd':\n formatter = dateGetter(DateType.Date, 1);\n break;\n case 'dd':\n formatter = dateGetter(DateType.Date, 2);\n break;\n // Day of the Week\n case 'E':\n case 'EE':\n case 'EEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated);\n break;\n case 'EEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide);\n break;\n case 'EEEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Narrow);\n break;\n case 'EEEEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short);\n break;\n // Generic period of the day (am-pm)\n case 'a':\n case 'aa':\n case 'aaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated);\n break;\n case 'aaaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide);\n break;\n case 'aaaaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow);\n break;\n // Extended period of the day (midnight, at night, ...), standalone\n case 'b':\n case 'bb':\n case 'bbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Standalone, true);\n break;\n case 'bbbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Standalone, true);\n break;\n case 'bbbbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Standalone, true);\n break;\n // Extended period of the day (midnight, night, ...), standalone\n case 'B':\n case 'BB':\n case 'BBB':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Format, true);\n break;\n case 'BBBB':\n formatter =\n dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Format, true);\n break;\n case 'BBBBB':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Format, true);\n break;\n // Hour in AM/PM, (1-12)\n case 'h':\n formatter = dateGetter(DateType.Hours, 1, -12);\n break;\n case 'hh':\n formatter = dateGetter(DateType.Hours, 2, -12);\n break;\n // Hour of the day (0-23)\n case 'H':\n formatter = dateGetter(DateType.Hours, 1);\n break;\n // Hour in day, padded (00-23)\n case 'HH':\n formatter = dateGetter(DateType.Hours, 2);\n break;\n // Minute of the hour (0-59)\n case 'm':\n formatter = dateGetter(DateType.Minutes, 1);\n break;\n case 'mm':\n formatter = dateGetter(DateType.Minutes, 2);\n break;\n // Second of the minute (0-59)\n case 's':\n formatter = dateGetter(DateType.Seconds, 1);\n break;\n case 'ss':\n formatter = dateGetter(DateType.Seconds, 2);\n break;\n // Fractional second\n case 'S':\n formatter = dateGetter(DateType.FractionalSeconds, 1);\n break;\n case 'SS':\n formatter = dateGetter(DateType.FractionalSeconds, 2);\n break;\n case 'SSS':\n formatter = dateGetter(DateType.FractionalSeconds, 3);\n break;\n // Timezone ISO8601 short format (-0430)\n case 'Z':\n case 'ZZ':\n case 'ZZZ':\n formatter = timeZoneGetter(ZoneWidth.Short);\n break;\n // Timezone ISO8601 extended format (-04:30)\n case 'ZZZZZ':\n formatter = timeZoneGetter(ZoneWidth.Extended);\n break;\n // Timezone GMT short format (GMT+4)\n case 'O':\n case 'OO':\n case 'OOO':\n // Should be location, but fallback to format O instead because we don't have the data yet\n case 'z':\n case 'zz':\n case 'zzz':\n formatter = timeZoneGetter(ZoneWidth.ShortGMT);\n break;\n // Timezone GMT long format (GMT+0430)\n case 'OOOO':\n case 'ZZZZ':\n // Should be location, but fallback to format O instead because we don't have the data yet\n case 'zzzz':\n formatter = timeZoneGetter(ZoneWidth.Long);\n break;\n default:\n return null;\n }\n DATE_FORMATS[format] = formatter;\n return formatter;\n}\nfunction timezoneToOffset(timezone, fallback) {\n // Support: IE 9-11 only, Edge 13-15+\n // IE/Edge do not \"understand\" colon (`:`) in timezone\n timezone = timezone.replace(/:/g, '');\n var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\nfunction addDateMinutes(date, minutes) {\n date = new Date(date.getTime());\n date.setMinutes(date.getMinutes() + minutes);\n return date;\n}\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n var reverseValue = reverse ? -1 : 1;\n var dateTimezoneOffset = date.getTimezoneOffset();\n var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n return addDateMinutes(date, reverseValue * (timezoneOffset - dateTimezoneOffset));\n}\n/**\n * Converts a value to date.\n *\n * Supported input formats:\n * - `Date`\n * - number: timestamp\n * - string: numeric (e.g. \"1234\"), ISO and date strings in a format supported by\n * [Date.parse()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse).\n * Note: ISO strings without time return a date without timeoffset.\n *\n * Throws if unable to convert to a date.\n */\nfunction toDate(value) {\n if (isDate(value)) {\n return value;\n }\n if (typeof value === 'number' && !isNaN(value)) {\n return new Date(value);\n }\n if (typeof value === 'string') {\n value = value.trim();\n var parsedNb = parseFloat(value);\n // any string that only contains numbers, like \"1234\" but not like \"1234hello\"\n if (!isNaN(value - parsedNb)) {\n return new Date(parsedNb);\n }\n if (/^(\\d{4}-\\d{1,2}-\\d{1,2})$/.test(value)) {\n /* For ISO Strings without time the day, month and year must be extracted from the ISO String\n before Date creation to avoid time offset and errors in the new Date.\n If we only replace '-' with ',' in the ISO String (\"2015,01,01\"), and try to create a new\n date, some browsers (e.g. IE 9) will throw an invalid Date error.\n If we leave the '-' (\"2015-01-01\") and try to create a new Date(\"2015-01-01\") the timeoffset\n is applied.\n Note: ISO months are 0 for January, 1 for February, ... */\n var _a = __read(value.split('-').map(function (val) { return +val; }), 3), y = _a[0], m = _a[1], d = _a[2];\n return new Date(y, m - 1, d);\n }\n var match = void 0;\n if (match = value.match(ISO8601_DATE_REGEX)) {\n return isoStringToDate(match);\n }\n }\n var date = new Date(value);\n if (!isDate(date)) {\n throw new Error(\"Unable to convert \\\"\" + value + \"\\\" into a date\");\n }\n return date;\n}\n/**\n * Converts a date in ISO8601 to a Date.\n * Used instead of `Date.parse` because of browser discrepancies.\n */\nfunction isoStringToDate(match) {\n var date = new Date(0);\n var tzHour = 0;\n var tzMin = 0;\n // match[8] means that the string contains \"Z\" (UTC) or a timezone like \"+01:00\" or \"+0100\"\n var dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;\n var timeSetter = match[8] ? date.setUTCHours : date.setHours;\n // if there is a timezone defined like \"+01:00\" or \"+0100\"\n if (match[9]) {\n tzHour = Number(match[9] + match[10]);\n tzMin = Number(match[9] + match[11]);\n }\n dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));\n var h = Number(match[4] || 0) - tzHour;\n var m = Number(match[5] || 0) - tzMin;\n var s = Number(match[6] || 0);\n var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n timeSetter.call(date, h, m, s, ms);\n return date;\n}\nfunction isDate(value) {\n return value instanceof Date && !isNaN(value.valueOf());\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar NUMBER_FORMAT_REGEXP = /^(\\d+)?\\.((\\d+)(-(\\d+))?)?$/;\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\nvar PATTERN_SEP = ';';\nvar GROUP_SEP = ',';\nvar DIGIT_CHAR = '#';\nvar CURRENCY_CHAR = '¤';\nvar PERCENT_CHAR = '%';\n/**\n * Transforms a number to a locale string based on a style and a format.\n */\nfunction formatNumberToLocaleString(value, pattern, locale, groupSymbol, decimalSymbol, digitsInfo, isPercent) {\n if (isPercent === void 0) { isPercent = false; }\n var formattedText = '';\n var isZero = false;\n if (!isFinite(value)) {\n formattedText = getLocaleNumberSymbol(locale, NumberSymbol.Infinity);\n }\n else {\n var parsedNumber = parseNumber(value);\n if (isPercent) {\n parsedNumber = toPercent(parsedNumber);\n }\n var minInt = pattern.minInt;\n var minFraction = pattern.minFrac;\n var maxFraction = pattern.maxFrac;\n if (digitsInfo) {\n var parts = digitsInfo.match(NUMBER_FORMAT_REGEXP);\n if (parts === null) {\n throw new Error(digitsInfo + \" is not a valid digit info\");\n }\n var minIntPart = parts[1];\n var minFractionPart = parts[3];\n var maxFractionPart = parts[5];\n if (minIntPart != null) {\n minInt = parseIntAutoRadix(minIntPart);\n }\n if (minFractionPart != null) {\n minFraction = parseIntAutoRadix(minFractionPart);\n }\n if (maxFractionPart != null) {\n maxFraction = parseIntAutoRadix(maxFractionPart);\n }\n else if (minFractionPart != null && minFraction > maxFraction) {\n maxFraction = minFraction;\n }\n }\n roundNumber(parsedNumber, minFraction, maxFraction);\n var digits = parsedNumber.digits;\n var integerLen = parsedNumber.integerLen;\n var exponent = parsedNumber.exponent;\n var decimals = [];\n isZero = digits.every(function (d) { return !d; });\n // pad zeros for small numbers\n for (; integerLen < minInt; integerLen++) {\n digits.unshift(0);\n }\n // pad zeros for small numbers\n for (; integerLen < 0; integerLen++) {\n digits.unshift(0);\n }\n // extract decimals digits\n if (integerLen > 0) {\n decimals = digits.splice(integerLen, digits.length);\n }\n else {\n decimals = digits;\n digits = [0];\n }\n // format the integer digits with grouping separators\n var groups = [];\n if (digits.length >= pattern.lgSize) {\n groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n }\n while (digits.length > pattern.gSize) {\n groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n }\n if (digits.length) {\n groups.unshift(digits.join(''));\n }\n formattedText = groups.join(getLocaleNumberSymbol(locale, groupSymbol));\n // append the decimal digits\n if (decimals.length) {\n formattedText += getLocaleNumberSymbol(locale, decimalSymbol) + decimals.join('');\n }\n if (exponent) {\n formattedText += getLocaleNumberSymbol(locale, NumberSymbol.Exponential) + '+' + exponent;\n }\n }\n if (value < 0 && !isZero) {\n formattedText = pattern.negPre + formattedText + pattern.negSuf;\n }\n else {\n formattedText = pattern.posPre + formattedText + pattern.posSuf;\n }\n return formattedText;\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as currency using locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param currency A string containing the currency symbol or its name,\n * such as \"$\" or \"Canadian Dollar\". Used in output string, but does not affect the operation\n * of the function.\n * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217)\n * currency code to use in the result string, such as `USD` for the US dollar and `EUR` for the euro.\n * @param digitInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted currency value.\n *\n * @see `formatNumber()`\n * @see `DecimalPipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction formatCurrency(value, locale, currency, currencyCode, digitsInfo) {\n var format = getLocaleNumberFormat(locale, NumberFormatStyle.Currency);\n var pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n pattern.minFrac = getNumberOfCurrencyDigits(currencyCode);\n pattern.maxFrac = pattern.minFrac;\n var res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.CurrencyGroup, NumberSymbol.CurrencyDecimal, digitsInfo);\n return res\n .replace(CURRENCY_CHAR, currency)\n // if we have 2 time the currency character, the second one is ignored\n .replace(CURRENCY_CHAR, '');\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as a percentage according to locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted percentage value.\n *\n * @see `formatNumber()`\n * @see `DecimalPipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @publicApi\n *\n */\nfunction formatPercent(value, locale, digitsInfo) {\n var format = getLocaleNumberFormat(locale, NumberFormatStyle.Percent);\n var pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n var res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo, true);\n return res.replace(new RegExp(PERCENT_CHAR, 'g'), getLocaleNumberSymbol(locale, NumberSymbol.PercentSign));\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as text, with group sizing, separator, and other\n * parameters based on the locale.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted text string.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * @publicApi\n */\nfunction formatNumber(value, locale, digitsInfo) {\n var format = getLocaleNumberFormat(locale, NumberFormatStyle.Decimal);\n var pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n return formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo);\n}\nfunction parseNumberFormat(format, minusSign) {\n if (minusSign === void 0) { minusSign = '-'; }\n var p = {\n minInt: 1,\n minFrac: 0,\n maxFrac: 0,\n posPre: '',\n posSuf: '',\n negPre: '',\n negSuf: '',\n gSize: 0,\n lgSize: 0\n };\n var patternParts = format.split(PATTERN_SEP);\n var positive = patternParts[0];\n var negative = patternParts[1];\n var positiveParts = positive.indexOf(DECIMAL_SEP) !== -1 ?\n positive.split(DECIMAL_SEP) :\n [\n positive.substring(0, positive.lastIndexOf(ZERO_CHAR) + 1),\n positive.substring(positive.lastIndexOf(ZERO_CHAR) + 1)\n ], integer = positiveParts[0], fraction = positiveParts[1] || '';\n p.posPre = integer.substr(0, integer.indexOf(DIGIT_CHAR));\n for (var i = 0; i < fraction.length; i++) {\n var ch = fraction.charAt(i);\n if (ch === ZERO_CHAR) {\n p.minFrac = p.maxFrac = i + 1;\n }\n else if (ch === DIGIT_CHAR) {\n p.maxFrac = i + 1;\n }\n else {\n p.posSuf += ch;\n }\n }\n var groups = integer.split(GROUP_SEP);\n p.gSize = groups[1] ? groups[1].length : 0;\n p.lgSize = (groups[2] || groups[1]) ? (groups[2] || groups[1]).length : 0;\n if (negative) {\n var trunkLen = positive.length - p.posPre.length - p.posSuf.length, pos = negative.indexOf(DIGIT_CHAR);\n p.negPre = negative.substr(0, pos).replace(/'/g, '');\n p.negSuf = negative.substr(pos + trunkLen).replace(/'/g, '');\n }\n else {\n p.negPre = minusSign + p.posPre;\n p.negSuf = p.posSuf;\n }\n return p;\n}\n// Transforms a parsed number into a percentage by multiplying it by 100\nfunction toPercent(parsedNumber) {\n // if the number is 0, don't do anything\n if (parsedNumber.digits[0] === 0) {\n return parsedNumber;\n }\n // Getting the current number of decimals\n var fractionLen = parsedNumber.digits.length - parsedNumber.integerLen;\n if (parsedNumber.exponent) {\n parsedNumber.exponent += 2;\n }\n else {\n if (fractionLen === 0) {\n parsedNumber.digits.push(0, 0);\n }\n else if (fractionLen === 1) {\n parsedNumber.digits.push(0);\n }\n parsedNumber.integerLen += 2;\n }\n return parsedNumber;\n}\n/**\n * Parses a number.\n * Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/\n */\nfunction parseNumber(num) {\n var numStr = Math.abs(num) + '';\n var exponent = 0, digits, integerLen;\n var i, j, zeros;\n // Decimal point?\n if ((integerLen = numStr.indexOf(DECIMAL_SEP)) > -1) {\n numStr = numStr.replace(DECIMAL_SEP, '');\n }\n // Exponential form?\n if ((i = numStr.search(/e/i)) > 0) {\n // Work out the exponent.\n if (integerLen < 0)\n integerLen = i;\n integerLen += +numStr.slice(i + 1);\n numStr = numStr.substring(0, i);\n }\n else if (integerLen < 0) {\n // There was no decimal point or exponent so it is an integer.\n integerLen = numStr.length;\n }\n // Count the number of leading zeros.\n for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */\n }\n if (i === (zeros = numStr.length)) {\n // The digits are all zero.\n digits = [0];\n integerLen = 1;\n }\n else {\n // Count the number of trailing zeros\n zeros--;\n while (numStr.charAt(zeros) === ZERO_CHAR)\n zeros--;\n // Trailing zeros are insignificant so ignore them\n integerLen -= i;\n digits = [];\n // Convert string to array of digits without leading/trailing zeros.\n for (j = 0; i <= zeros; i++, j++) {\n digits[j] = Number(numStr.charAt(i));\n }\n }\n // If the number overflows the maximum allowed digits then use an exponent.\n if (integerLen > MAX_DIGITS) {\n digits = digits.splice(0, MAX_DIGITS - 1);\n exponent = integerLen - 1;\n integerLen = 1;\n }\n return { digits: digits, exponent: exponent, integerLen: integerLen };\n}\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changes the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, minFrac, maxFrac) {\n if (minFrac > maxFrac) {\n throw new Error(\"The minimum number of digits after fraction (\" + minFrac + \") is higher than the maximum (\" + maxFrac + \").\");\n }\n var digits = parsedNumber.digits;\n var fractionLen = digits.length - parsedNumber.integerLen;\n var fractionSize = Math.min(Math.max(minFrac, fractionLen), maxFrac);\n // The index of the digit to where rounding is to occur\n var roundAt = fractionSize + parsedNumber.integerLen;\n var digit = digits[roundAt];\n if (roundAt > 0) {\n // Drop fractional digits beyond `roundAt`\n digits.splice(Math.max(parsedNumber.integerLen, roundAt));\n // Set non-fractional digits beyond `roundAt` to 0\n for (var j = roundAt; j < digits.length; j++) {\n digits[j] = 0;\n }\n }\n else {\n // We rounded to zero so reset the parsedNumber\n fractionLen = Math.max(0, fractionLen);\n parsedNumber.integerLen = 1;\n digits.length = Math.max(1, roundAt = fractionSize + 1);\n digits[0] = 0;\n for (var i = 1; i < roundAt; i++)\n digits[i] = 0;\n }\n if (digit >= 5) {\n if (roundAt - 1 < 0) {\n for (var k = 0; k > roundAt; k--) {\n digits.unshift(0);\n parsedNumber.integerLen++;\n }\n digits.unshift(1);\n parsedNumber.integerLen++;\n }\n else {\n digits[roundAt - 1]++;\n }\n }\n // Pad out with zeros to get the required fraction length\n for (; fractionLen < Math.max(0, fractionSize); fractionLen++)\n digits.push(0);\n var dropTrailingZeros = fractionSize !== 0;\n // Minimal length = nb of decimals required + current nb of integers\n // Any number besides that is optional and can be removed if it's a trailing 0\n var minLen = minFrac + parsedNumber.integerLen;\n // Do any carrying, e.g. a digit was rounded up to 10\n var carry = digits.reduceRight(function (carry, d, i, digits) {\n d = d + carry;\n digits[i] = d < 10 ? d : d - 10; // d % 10\n if (dropTrailingZeros) {\n // Do not keep meaningless fractional trailing zeros (e.g. 15.52000 --> 15.52)\n if (digits[i] === 0 && i >= minLen) {\n digits.pop();\n }\n else {\n dropTrailingZeros = false;\n }\n }\n return d >= 10 ? 1 : 0; // Math.floor(d / 10);\n }, 0);\n if (carry) {\n digits.unshift(carry);\n parsedNumber.integerLen++;\n }\n}\nfunction parseIntAutoRadix(text) {\n var result = parseInt(text);\n if (isNaN(result)) {\n throw new Error('Invalid integer literal when parsing ' + text);\n }\n return result;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @deprecated from v5\n */\nvar DEPRECATED_PLURAL_FN = new InjectionToken('UseV4Plurals');\n/**\n * @publicApi\n */\nvar NgLocalization = /** @class */ (function () {\n function NgLocalization() {\n }\n return NgLocalization;\n}());\n/**\n * Returns the plural category for a given value.\n * - \"=value\" when the case exists,\n * - the plural category otherwise\n */\nfunction getPluralCategory(value, cases, ngLocalization, locale) {\n var key = \"=\" + value;\n if (cases.indexOf(key) > -1) {\n return key;\n }\n key = ngLocalization.getPluralCategory(value, locale);\n if (cases.indexOf(key) > -1) {\n return key;\n }\n if (cases.indexOf('other') > -1) {\n return 'other';\n }\n throw new Error(\"No plural message found for value \\\"\" + value + \"\\\"\");\n}\n/**\n * Returns the plural case based on the locale\n *\n * @publicApi\n */\nvar NgLocaleLocalization = /** @class */ (function (_super) {\n __extends(NgLocaleLocalization, _super);\n function NgLocaleLocalization(locale, \n /** @deprecated from v5 */\n deprecatedPluralFn) {\n var _this = _super.call(this) || this;\n _this.locale = locale;\n _this.deprecatedPluralFn = deprecatedPluralFn;\n return _this;\n }\n NgLocaleLocalization.prototype.getPluralCategory = function (value, locale) {\n var plural = this.deprecatedPluralFn ? this.deprecatedPluralFn(locale || this.locale, value) :\n getLocalePluralCase(locale || this.locale)(value);\n switch (plural) {\n case Plural.Zero:\n return 'zero';\n case Plural.One:\n return 'one';\n case Plural.Two:\n return 'two';\n case Plural.Few:\n return 'few';\n case Plural.Many:\n return 'many';\n default:\n return 'other';\n }\n };\n NgLocaleLocalization = __decorate([\n Injectable(),\n __param(0, Inject(LOCALE_ID)),\n __param(1, Optional()), __param(1, Inject(DEPRECATED_PLURAL_FN)),\n __metadata(\"design:paramtypes\", [String, Object])\n ], NgLocaleLocalization);\n return NgLocaleLocalization;\n}(NgLocalization));\n/**\n * Returns the plural case based on the locale\n *\n * @deprecated from v5 the plural case function is in locale data files common/locales/*.ts\n * @publicApi\n */\nfunction getPluralCase(locale, nLike) {\n // TODO(vicb): lazy compute\n if (typeof nLike === 'string') {\n nLike = parseInt(nLike, 10);\n }\n var n = nLike;\n var nDecimal = n.toString().replace(/^[^.]*\\.?/, '');\n var i = Math.floor(Math.abs(n));\n var v = nDecimal.length;\n var f = parseInt(nDecimal, 10);\n var t = parseInt(n.toString().replace(/^[^.]*\\.?|0+$/g, ''), 10) || 0;\n var lang = locale.split('-')[0].toLowerCase();\n switch (lang) {\n case 'af':\n case 'asa':\n case 'az':\n case 'bem':\n case 'bez':\n case 'bg':\n case 'brx':\n case 'ce':\n case 'cgg':\n case 'chr':\n case 'ckb':\n case 'ee':\n case 'el':\n case 'eo':\n case 'es':\n case 'eu':\n case 'fo':\n case 'fur':\n case 'gsw':\n case 'ha':\n case 'haw':\n case 'hu':\n case 'jgo':\n case 'jmc':\n case 'ka':\n case 'kk':\n case 'kkj':\n case 'kl':\n case 'ks':\n case 'ksb':\n case 'ky':\n case 'lb':\n case 'lg':\n case 'mas':\n case 'mgo':\n case 'ml':\n case 'mn':\n case 'nb':\n case 'nd':\n case 'ne':\n case 'nn':\n case 'nnh':\n case 'nyn':\n case 'om':\n case 'or':\n case 'os':\n case 'ps':\n case 'rm':\n case 'rof':\n case 'rwk':\n case 'saq':\n case 'seh':\n case 'sn':\n case 'so':\n case 'sq':\n case 'ta':\n case 'te':\n case 'teo':\n case 'tk':\n case 'tr':\n case 'ug':\n case 'uz':\n case 'vo':\n case 'vun':\n case 'wae':\n case 'xog':\n if (n === 1)\n return Plural.One;\n return Plural.Other;\n case 'ak':\n case 'ln':\n case 'mg':\n case 'pa':\n case 'ti':\n if (n === Math.floor(n) && n >= 0 && n <= 1)\n return Plural.One;\n return Plural.Other;\n case 'am':\n case 'as':\n case 'bn':\n case 'fa':\n case 'gu':\n case 'hi':\n case 'kn':\n case 'mr':\n case 'zu':\n if (i === 0 || n === 1)\n return Plural.One;\n return Plural.Other;\n case 'ar':\n if (n === 0)\n return Plural.Zero;\n if (n === 1)\n return Plural.One;\n if (n === 2)\n return Plural.Two;\n if (n % 100 === Math.floor(n % 100) && n % 100 >= 3 && n % 100 <= 10)\n return Plural.Few;\n if (n % 100 === Math.floor(n % 100) && n % 100 >= 11 && n % 100 <= 99)\n return Plural.Many;\n return Plural.Other;\n case 'ast':\n case 'ca':\n case 'de':\n case 'en':\n case 'et':\n case 'fi':\n case 'fy':\n case 'gl':\n case 'it':\n case 'nl':\n case 'sv':\n case 'sw':\n case 'ur':\n case 'yi':\n if (i === 1 && v === 0)\n return Plural.One;\n return Plural.Other;\n case 'be':\n if (n % 10 === 1 && !(n % 100 === 11))\n return Plural.One;\n if (n % 10 === Math.floor(n % 10) && n % 10 >= 2 && n % 10 <= 4 &&\n !(n % 100 >= 12 && n % 100 <= 14))\n return Plural.Few;\n if (n % 10 === 0 || n % 10 === Math.floor(n % 10) && n % 10 >= 5 && n % 10 <= 9 ||\n n % 100 === Math.floor(n % 100) && n % 100 >= 11 && n % 100 <= 14)\n return Plural.Many;\n return Plural.Other;\n case 'br':\n if (n % 10 === 1 && !(n % 100 === 11 || n % 100 === 71 || n % 100 === 91))\n return Plural.One;\n if (n % 10 === 2 && !(n % 100 === 12 || n % 100 === 72 || n % 100 === 92))\n return Plural.Two;\n if (n % 10 === Math.floor(n % 10) && (n % 10 >= 3 && n % 10 <= 4 || n % 10 === 9) &&\n !(n % 100 >= 10 && n % 100 <= 19 || n % 100 >= 70 && n % 100 <= 79 ||\n n % 100 >= 90 && n % 100 <= 99))\n return Plural.Few;\n if (!(n === 0) && n % 1e6 === 0)\n return Plural.Many;\n return Plural.Other;\n case 'bs':\n case 'hr':\n case 'sr':\n if (v === 0 && i % 10 === 1 && !(i % 100 === 11) || f % 10 === 1 && !(f % 100 === 11))\n return Plural.One;\n if (v === 0 && i % 10 === Math.floor(i % 10) && i % 10 >= 2 && i % 10 <= 4 &&\n !(i % 100 >= 12 && i % 100 <= 14) ||\n f % 10 === Math.floor(f % 10) && f % 10 >= 2 && f % 10 <= 4 &&\n !(f % 100 >= 12 && f % 100 <= 14))\n return Plural.Few;\n return Plural.Other;\n case 'cs':\n case 'sk':\n if (i === 1 && v === 0)\n return Plural.One;\n if (i === Math.floor(i) && i >= 2 && i <= 4 && v === 0)\n return Plural.Few;\n if (!(v === 0))\n return Plural.Many;\n return Plural.Other;\n case 'cy':\n if (n === 0)\n return Plural.Zero;\n if (n === 1)\n return Plural.One;\n if (n === 2)\n return Plural.Two;\n if (n === 3)\n return Plural.Few;\n if (n === 6)\n return Plural.Many;\n return Plural.Other;\n case 'da':\n if (n === 1 || !(t === 0) && (i === 0 || i === 1))\n return Plural.One;\n return Plural.Other;\n case 'dsb':\n case 'hsb':\n if (v === 0 && i % 100 === 1 || f % 100 === 1)\n return Plural.One;\n if (v === 0 && i % 100 === 2 || f % 100 === 2)\n return Plural.Two;\n if (v === 0 && i % 100 === Math.floor(i % 100) && i % 100 >= 3 && i % 100 <= 4 ||\n f % 100 === Math.floor(f % 100) && f % 100 >= 3 && f % 100 <= 4)\n return Plural.Few;\n return Plural.Other;\n case 'ff':\n case 'fr':\n case 'hy':\n case 'kab':\n if (i === 0 || i === 1)\n return Plural.One;\n return Plural.Other;\n case 'fil':\n if (v === 0 && (i === 1 || i === 2 || i === 3) ||\n v === 0 && !(i % 10 === 4 || i % 10 === 6 || i % 10 === 9) ||\n !(v === 0) && !(f % 10 === 4 || f % 10 === 6 || f % 10 === 9))\n return Plural.One;\n return Plural.Other;\n case 'ga':\n if (n === 1)\n return Plural.One;\n if (n === 2)\n return Plural.Two;\n if (n === Math.floor(n) && n >= 3 && n <= 6)\n return Plural.Few;\n if (n === Math.floor(n) && n >= 7 && n <= 10)\n return Plural.Many;\n return Plural.Other;\n case 'gd':\n if (n === 1 || n === 11)\n return Plural.One;\n if (n === 2 || n === 12)\n return Plural.Two;\n if (n === Math.floor(n) && (n >= 3 && n <= 10 || n >= 13 && n <= 19))\n return Plural.Few;\n return Plural.Other;\n case 'gv':\n if (v === 0 && i % 10 === 1)\n return Plural.One;\n if (v === 0 && i % 10 === 2)\n return Plural.Two;\n if (v === 0 &&\n (i % 100 === 0 || i % 100 === 20 || i % 100 === 40 || i % 100 === 60 || i % 100 === 80))\n return Plural.Few;\n if (!(v === 0))\n return Plural.Many;\n return Plural.Other;\n case 'he':\n if (i === 1 && v === 0)\n return Plural.One;\n if (i === 2 && v === 0)\n return Plural.Two;\n if (v === 0 && !(n >= 0 && n <= 10) && n % 10 === 0)\n return Plural.Many;\n return Plural.Other;\n case 'is':\n if (t === 0 && i % 10 === 1 && !(i % 100 === 11) || !(t === 0))\n return Plural.One;\n return Plural.Other;\n case 'ksh':\n if (n === 0)\n return Plural.Zero;\n if (n === 1)\n return Plural.One;\n return Plural.Other;\n case 'kw':\n case 'naq':\n case 'se':\n case 'smn':\n if (n === 1)\n return Plural.One;\n if (n === 2)\n return Plural.Two;\n return Plural.Other;\n case 'lag':\n if (n === 0)\n return Plural.Zero;\n if ((i === 0 || i === 1) && !(n === 0))\n return Plural.One;\n return Plural.Other;\n case 'lt':\n if (n % 10 === 1 && !(n % 100 >= 11 && n % 100 <= 19))\n return Plural.One;\n if (n % 10 === Math.floor(n % 10) && n % 10 >= 2 && n % 10 <= 9 &&\n !(n % 100 >= 11 && n % 100 <= 19))\n return Plural.Few;\n if (!(f === 0))\n return Plural.Many;\n return Plural.Other;\n case 'lv':\n case 'prg':\n if (n % 10 === 0 || n % 100 === Math.floor(n % 100) && n % 100 >= 11 && n % 100 <= 19 ||\n v === 2 && f % 100 === Math.floor(f % 100) && f % 100 >= 11 && f % 100 <= 19)\n return Plural.Zero;\n if (n % 10 === 1 && !(n % 100 === 11) || v === 2 && f % 10 === 1 && !(f % 100 === 11) ||\n !(v === 2) && f % 10 === 1)\n return Plural.One;\n return Plural.Other;\n case 'mk':\n if (v === 0 && i % 10 === 1 || f % 10 === 1)\n return Plural.One;\n return Plural.Other;\n case 'mt':\n if (n === 1)\n return Plural.One;\n if (n === 0 || n % 100 === Math.floor(n % 100) && n % 100 >= 2 && n % 100 <= 10)\n return Plural.Few;\n if (n % 100 === Math.floor(n % 100) && n % 100 >= 11 && n % 100 <= 19)\n return Plural.Many;\n return Plural.Other;\n case 'pl':\n if (i === 1 && v === 0)\n return Plural.One;\n if (v === 0 && i % 10 === Math.floor(i % 10) && i % 10 >= 2 && i % 10 <= 4 &&\n !(i % 100 >= 12 && i % 100 <= 14))\n return Plural.Few;\n if (v === 0 && !(i === 1) && i % 10 === Math.floor(i % 10) && i % 10 >= 0 && i % 10 <= 1 ||\n v === 0 && i % 10 === Math.floor(i % 10) && i % 10 >= 5 && i % 10 <= 9 ||\n v === 0 && i % 100 === Math.floor(i % 100) && i % 100 >= 12 && i % 100 <= 14)\n return Plural.Many;\n return Plural.Other;\n case 'pt':\n if (n === Math.floor(n) && n >= 0 && n <= 2 && !(n === 2))\n return Plural.One;\n return Plural.Other;\n case 'ro':\n if (i === 1 && v === 0)\n return Plural.One;\n if (!(v === 0) || n === 0 ||\n !(n === 1) && n % 100 === Math.floor(n % 100) && n % 100 >= 1 && n % 100 <= 19)\n return Plural.Few;\n return Plural.Other;\n case 'ru':\n case 'uk':\n if (v === 0 && i % 10 === 1 && !(i % 100 === 11))\n return Plural.One;\n if (v === 0 && i % 10 === Math.floor(i % 10) && i % 10 >= 2 && i % 10 <= 4 &&\n !(i % 100 >= 12 && i % 100 <= 14))\n return Plural.Few;\n if (v === 0 && i % 10 === 0 ||\n v === 0 && i % 10 === Math.floor(i % 10) && i % 10 >= 5 && i % 10 <= 9 ||\n v === 0 && i % 100 === Math.floor(i % 100) && i % 100 >= 11 && i % 100 <= 14)\n return Plural.Many;\n return Plural.Other;\n case 'shi':\n if (i === 0 || n === 1)\n return Plural.One;\n if (n === Math.floor(n) && n >= 2 && n <= 10)\n return Plural.Few;\n return Plural.Other;\n case 'si':\n if (n === 0 || n === 1 || i === 0 && f === 1)\n return Plural.One;\n return Plural.Other;\n case 'sl':\n if (v === 0 && i % 100 === 1)\n return Plural.One;\n if (v === 0 && i % 100 === 2)\n return Plural.Two;\n if (v === 0 && i % 100 === Math.floor(i % 100) && i % 100 >= 3 && i % 100 <= 4 || !(v === 0))\n return Plural.Few;\n return Plural.Other;\n case 'tzm':\n if (n === Math.floor(n) && n >= 0 && n <= 1 || n === Math.floor(n) && n >= 11 && n <= 99)\n return Plural.One;\n return Plural.Other;\n // When there is no specification, the default is always \"other\"\n // Spec: http://cldr.unicode.org/index/cldr-spec/plural-rules\n // > other (required—general plural form — also used if the language only has a single form)\n default:\n return Plural.Other;\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction parseCookieValue(cookieStr, name) {\n var e_1, _a;\n name = encodeURIComponent(name);\n try {\n for (var _b = __values(cookieStr.split(';')), _c = _b.next(); !_c.done; _c = _b.next()) {\n var cookie = _c.value;\n var eqIndex = cookie.indexOf('=');\n var _d = __read(eqIndex == -1 ? [cookie, ''] : [cookie.slice(0, eqIndex), cookie.slice(eqIndex + 1)], 2), cookieName = _d[0], cookieValue = _d[1];\n if (cookieName.trim() === name) {\n return decodeURIComponent(cookieValue);\n }\n }\n }\n catch (e_1_1) { e_1 = { error: e_1_1 }; }\n finally {\n try {\n if (_c && !_c.done && (_a = _b.return)) _a.call(_b);\n }\n finally { if (e_1) throw e_1.error; }\n }\n return null;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n * ...\n *\n * ...\n *\n * ...\n *\n * ...\n *\n * ...\n * ```\n *\n * @description\n *\n * Adds and removes CSS classes on an HTML element.\n *\n * The CSS classes are updated as follows, depending on the type of the expression evaluation:\n * - `string` - the CSS classes listed in the string (space delimited) are added,\n * - `Array` - the CSS classes declared as Array elements are added,\n * - `Object` - keys are CSS classes that get added when the expression given in the value\n * evaluates to a truthy value, otherwise they are removed.\n *\n * @publicApi\n */\nvar NgClass = /** @class */ (function () {\n function NgClass(_iterableDiffers, _keyValueDiffers, _ngEl, _renderer) {\n this._iterableDiffers = _iterableDiffers;\n this._keyValueDiffers = _keyValueDiffers;\n this._ngEl = _ngEl;\n this._renderer = _renderer;\n this._initialClasses = [];\n }\n Object.defineProperty(NgClass.prototype, \"klass\", {\n set: function (value) {\n this._removeClasses(this._initialClasses);\n this._initialClasses = typeof value === 'string' ? value.split(/\\s+/) : [];\n this._applyClasses(this._initialClasses);\n this._applyClasses(this._rawClass);\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgClass.prototype, \"ngClass\", {\n set: function (value) {\n this._removeClasses(this._rawClass);\n this._applyClasses(this._initialClasses);\n this._iterableDiffer = null;\n this._keyValueDiffer = null;\n this._rawClass = typeof value === 'string' ? value.split(/\\s+/) : value;\n if (this._rawClass) {\n if (ɵisListLikeIterable(this._rawClass)) {\n this._iterableDiffer = this._iterableDiffers.find(this._rawClass).create();\n }\n else {\n this._keyValueDiffer = this._keyValueDiffers.find(this._rawClass).create();\n }\n }\n },\n enumerable: true,\n configurable: true\n });\n NgClass.prototype.ngDoCheck = function () {\n if (this._iterableDiffer) {\n var iterableChanges = this._iterableDiffer.diff(this._rawClass);\n if (iterableChanges) {\n this._applyIterableChanges(iterableChanges);\n }\n }\n else if (this._keyValueDiffer) {\n var keyValueChanges = this._keyValueDiffer.diff(this._rawClass);\n if (keyValueChanges) {\n this._applyKeyValueChanges(keyValueChanges);\n }\n }\n };\n NgClass.prototype._applyKeyValueChanges = function (changes) {\n var _this = this;\n changes.forEachAddedItem(function (record) { return _this._toggleClass(record.key, record.currentValue); });\n changes.forEachChangedItem(function (record) { return _this._toggleClass(record.key, record.currentValue); });\n changes.forEachRemovedItem(function (record) {\n if (record.previousValue) {\n _this._toggleClass(record.key, false);\n }\n });\n };\n NgClass.prototype._applyIterableChanges = function (changes) {\n var _this = this;\n changes.forEachAddedItem(function (record) {\n if (typeof record.item === 'string') {\n _this._toggleClass(record.item, true);\n }\n else {\n throw new Error(\"NgClass can only toggle CSS classes expressed as strings, got \" + ɵstringify(record.item));\n }\n });\n changes.forEachRemovedItem(function (record) { return _this._toggleClass(record.item, false); });\n };\n /**\n * Applies a collection of CSS classes to the DOM element.\n *\n * For argument of type Set and Array CSS class names contained in those collections are always\n * added.\n * For argument of type Map CSS class name in the map's key is toggled based on the value (added\n * for truthy and removed for falsy).\n */\n NgClass.prototype._applyClasses = function (rawClassVal) {\n var _this = this;\n if (rawClassVal) {\n if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n rawClassVal.forEach(function (klass) { return _this._toggleClass(klass, true); });\n }\n else {\n Object.keys(rawClassVal).forEach(function (klass) { return _this._toggleClass(klass, !!rawClassVal[klass]); });\n }\n }\n };\n /**\n * Removes a collection of CSS classes from the DOM element. This is mostly useful for cleanup\n * purposes.\n */\n NgClass.prototype._removeClasses = function (rawClassVal) {\n var _this = this;\n if (rawClassVal) {\n if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n rawClassVal.forEach(function (klass) { return _this._toggleClass(klass, false); });\n }\n else {\n Object.keys(rawClassVal).forEach(function (klass) { return _this._toggleClass(klass, false); });\n }\n }\n };\n NgClass.prototype._toggleClass = function (klass, enabled) {\n var _this = this;\n klass = klass.trim();\n if (klass) {\n klass.split(/\\s+/g).forEach(function (klass) {\n if (enabled) {\n _this._renderer.addClass(_this._ngEl.nativeElement, klass);\n }\n else {\n _this._renderer.removeClass(_this._ngEl.nativeElement, klass);\n }\n });\n }\n };\n __decorate([\n Input('class'),\n __metadata(\"design:type\", String),\n __metadata(\"design:paramtypes\", [String])\n ], NgClass.prototype, \"klass\", null);\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgClass.prototype, \"ngClass\", null);\n NgClass = __decorate([\n Directive({ selector: '[ngClass]' }),\n __metadata(\"design:paramtypes\", [IterableDiffers, KeyValueDiffers,\n ElementRef, Renderer2])\n ], NgClass);\n return NgClass;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Instantiates a single {@link Component} type and inserts its Host View into current View.\n * `NgComponentOutlet` provides a declarative approach for dynamic component creation.\n *\n * `NgComponentOutlet` requires a component type, if a falsy value is set the view will clear and\n * any existing component will get destroyed.\n *\n * @usageNotes\n *\n * ### Fine tune control\n *\n * You can control the component creation process by using the following optional attributes:\n *\n * * `ngComponentOutletInjector`: Optional custom {@link Injector} that will be used as parent for\n * the Component. Defaults to the injector of the current view container.\n *\n * * `ngComponentOutletContent`: Optional list of projectable nodes to insert into the content\n * section of the component, if exists.\n *\n * * `ngComponentOutletNgModuleFactory`: Optional module factory to allow dynamically loading other\n * module, then load a component from that module.\n *\n * ### Syntax\n *\n * Simple\n * ```\n * \n * ```\n *\n * Customized injector/content\n * ```\n * \n * \n * ```\n *\n * Customized ngModuleFactory\n * ```\n * \n * \n * ```\n *\n * ### A simple example\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='SimpleExample'}\n *\n * A more complete example with additional options:\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='CompleteExample'}\n\n * A more complete example with ngModuleFactory:\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='NgModuleFactoryExample'}\n *\n * @publicApi\n * @ngModule CommonModule\n */\nvar NgComponentOutlet = /** @class */ (function () {\n function NgComponentOutlet(_viewContainerRef) {\n this._viewContainerRef = _viewContainerRef;\n this._componentRef = null;\n this._moduleRef = null;\n }\n NgComponentOutlet.prototype.ngOnChanges = function (changes) {\n this._viewContainerRef.clear();\n this._componentRef = null;\n if (this.ngComponentOutlet) {\n var elInjector = this.ngComponentOutletInjector || this._viewContainerRef.parentInjector;\n if (changes['ngComponentOutletNgModuleFactory']) {\n if (this._moduleRef)\n this._moduleRef.destroy();\n if (this.ngComponentOutletNgModuleFactory) {\n var parentModule = elInjector.get(NgModuleRef);\n this._moduleRef = this.ngComponentOutletNgModuleFactory.create(parentModule.injector);\n }\n else {\n this._moduleRef = null;\n }\n }\n var componentFactoryResolver = this._moduleRef ? this._moduleRef.componentFactoryResolver :\n elInjector.get(ComponentFactoryResolver);\n var componentFactory = componentFactoryResolver.resolveComponentFactory(this.ngComponentOutlet);\n this._componentRef = this._viewContainerRef.createComponent(componentFactory, this._viewContainerRef.length, elInjector, this.ngComponentOutletContent);\n }\n };\n NgComponentOutlet.prototype.ngOnDestroy = function () {\n if (this._moduleRef)\n this._moduleRef.destroy();\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Type)\n ], NgComponentOutlet.prototype, \"ngComponentOutlet\", void 0);\n __decorate([\n Input(),\n __metadata(\"design:type\", Injector)\n ], NgComponentOutlet.prototype, \"ngComponentOutletInjector\", void 0);\n __decorate([\n Input(),\n __metadata(\"design:type\", Array)\n ], NgComponentOutlet.prototype, \"ngComponentOutletContent\", void 0);\n __decorate([\n Input(),\n __metadata(\"design:type\", NgModuleFactory)\n ], NgComponentOutlet.prototype, \"ngComponentOutletNgModuleFactory\", void 0);\n NgComponentOutlet = __decorate([\n Directive({ selector: '[ngComponentOutlet]' }),\n __metadata(\"design:paramtypes\", [ViewContainerRef])\n ], NgComponentOutlet);\n return NgComponentOutlet;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nvar NgForOfContext = /** @class */ (function () {\n function NgForOfContext($implicit, ngForOf, index, count) {\n this.$implicit = $implicit;\n this.ngForOf = ngForOf;\n this.index = index;\n this.count = count;\n }\n Object.defineProperty(NgForOfContext.prototype, \"first\", {\n get: function () { return this.index === 0; },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgForOfContext.prototype, \"last\", {\n get: function () { return this.index === this.count - 1; },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgForOfContext.prototype, \"even\", {\n get: function () { return this.index % 2 === 0; },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgForOfContext.prototype, \"odd\", {\n get: function () { return !this.even; },\n enumerable: true,\n configurable: true\n });\n return NgForOfContext;\n}());\n/**\n * A [structural directive](guide/structural-directives) that renders\n * a template for each item in a collection.\n * The directive is placed on an element, which becomes the parent\n * of the cloned templates.\n *\n * The `ngForOf` is generally used in the\n * [shorthand form](guide/structural-directives#the-asterisk--prefix) `*ngFor`.\n * In this form, the template to be rendered for each iteration is the content\n * of an anchor element containing the directive.\n *\n * The following example shows the shorthand syntax with some options,\n * contained in an `

` element.\n *\n * ```\n *

...

\n * ```\n *\n * The shorthand form expands into a long form that uses the `ngForOf` selector\n * on an `` element.\n * The content of the `` element is the `

` element that held the\n * short-form directive.\n *\n * Here is the expanded version of the short-form example.\n *\n * ```\n * \n *

...

\n * \n * ```\n *\n * Angular automatically expands the shorthand syntax as it compiles the template.\n * The context for each embedded view is logically merged to the current component\n * context according to its lexical position.\n *\n * When using the shorthand syntax, Angular allows only [one structural directive\n * on an element](guide/structural-directives#one-structural-directive-per-host-element).\n * If you want to iterate conditionally, for example,\n * put the `*ngIf` on a container element that wraps the `*ngFor` element.\n * For futher discussion, see\n * [Structural Directives](guide/structural-directives#one-per-element).\n *\n * @usageNotes\n *\n * ### Local variables\n *\n * `NgForOf` provides exported values that can be aliased to local variables.\n * For example:\n *\n * ```\n *

\n * {{i}}/{{users.length}}. {{user}} default\n *

\n * ```\n *\n * The following exported values can be aliased to local variables:\n *\n * - `$implicit: T`: The value of the individual items in the iterable (`ngForOf`).\n * - `ngForOf: NgIterable`: The value of the iterable expression. Useful when the expression is\n * more complex then a property access, for example when using the async pipe (`userStreams |\n * async`).\n * - `index: number`: The index of the current item in the iterable.\n * - `first: boolean`: True when the item is the first item in the iterable.\n * - `last: boolean`: True when the item is the last item in the iterable.\n * - `even: boolean`: True when the item has an even index in the iterable.\n * - `odd: boolean`: True when the item has an odd index in the iterable.\n *\n * ### Change propagation\n *\n * When the contents of the iterator changes, `NgForOf` makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * Angular uses object identity to track insertions and deletions within the iterator and reproduce\n * those changes in the DOM. This has important implications for animations and any stateful\n * controls that are present, such as `` elements that accept user input. Inserted rows can\n * be animated in, deleted rows can be animated out, and unchanged rows retain any unsaved state\n * such as user input.\n * For more on animations, see [Transitions and Triggers](guide/transition-and-triggers).\n *\n * The identities of elements in the iterator can change while the data does not.\n * This can happen, for example, if the iterator is produced from an RPC to the server, and that\n * RPC is re-run. Even if the data hasn't changed, the second response produces objects with\n * different identities, and Angular must tear down the entire DOM and rebuild it (as if all old\n * elements were deleted and all new elements inserted).\n *\n * To avoid this expensive operation, you can customize the default tracking algorithm.\n * by supplying the `trackBy` option to `NgForOf`.\n * `trackBy` takes a function that has two arguments: `index` and `item`.\n * If `trackBy` is given, Angular tracks changes by the return value of the function.\n *\n * @see [Structural Directives](guide/structural-directives)\n * @ngModule CommonModule\n * @publicApi\n */\nvar NgForOf = /** @class */ (function () {\n function NgForOf(_viewContainer, _template, _differs) {\n this._viewContainer = _viewContainer;\n this._template = _template;\n this._differs = _differs;\n this._ngForOfDirty = true;\n this._differ = null;\n }\n Object.defineProperty(NgForOf.prototype, \"ngForOf\", {\n set: function (ngForOf) {\n this._ngForOf = ngForOf;\n this._ngForOfDirty = true;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgForOf.prototype, \"ngForTrackBy\", {\n get: function () { return this._trackByFn; },\n set: function (fn) {\n if (isDevMode() && fn != null && typeof fn !== 'function') {\n // TODO(vicb): use a log service once there is a public one available\n if (console && console.warn) {\n console.warn(\"trackBy must be a function, but received \" + JSON.stringify(fn) + \". \" +\n \"See https://angular.io/docs/ts/latest/api/common/index/NgFor-directive.html#!#change-propagation for more information.\");\n }\n }\n this._trackByFn = fn;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgForOf.prototype, \"ngForTemplate\", {\n set: function (value) {\n // TODO(TS2.1): make TemplateRef>> once we move to TS v2.1\n // The current type is too restrictive; a template that just uses index, for example,\n // should be acceptable.\n if (value) {\n this._template = value;\n }\n },\n enumerable: true,\n configurable: true\n });\n NgForOf.prototype.ngDoCheck = function () {\n if (this._ngForOfDirty) {\n this._ngForOfDirty = false;\n // React on ngForOf changes only once all inputs have been initialized\n var value = this._ngForOf;\n if (!this._differ && value) {\n try {\n this._differ = this._differs.find(value).create(this.ngForTrackBy);\n }\n catch (_a) {\n throw new Error(\"Cannot find a differ supporting object '\" + value + \"' of type '\" + getTypeNameForDebugging(value) + \"'. NgFor only supports binding to Iterables such as Arrays.\");\n }\n }\n }\n if (this._differ) {\n var changes = this._differ.diff(this._ngForOf);\n if (changes)\n this._applyChanges(changes);\n }\n };\n NgForOf.prototype._applyChanges = function (changes) {\n var _this = this;\n var insertTuples = [];\n changes.forEachOperation(function (item, adjustedPreviousIndex, currentIndex) {\n if (item.previousIndex == null) {\n var view = _this._viewContainer.createEmbeddedView(_this._template, new NgForOfContext(null, _this._ngForOf, -1, -1), currentIndex);\n var tuple = new RecordViewTuple(item, view);\n insertTuples.push(tuple);\n }\n else if (currentIndex == null) {\n _this._viewContainer.remove(adjustedPreviousIndex);\n }\n else {\n var view = _this._viewContainer.get(adjustedPreviousIndex);\n _this._viewContainer.move(view, currentIndex);\n var tuple = new RecordViewTuple(item, view);\n insertTuples.push(tuple);\n }\n });\n for (var i = 0; i < insertTuples.length; i++) {\n this._perViewChange(insertTuples[i].view, insertTuples[i].record);\n }\n for (var i = 0, ilen = this._viewContainer.length; i < ilen; i++) {\n var viewRef = this._viewContainer.get(i);\n viewRef.context.index = i;\n viewRef.context.count = ilen;\n viewRef.context.ngForOf = this._ngForOf;\n }\n changes.forEachIdentityChange(function (record) {\n var viewRef = _this._viewContainer.get(record.currentIndex);\n viewRef.context.$implicit = record.item;\n });\n };\n NgForOf.prototype._perViewChange = function (view, record) {\n view.context.$implicit = record.item;\n };\n /**\n * Asserts the correct type of the context for the template that `NgForOf` will render.\n *\n * The presence of this method is a signal to the Ivy template type-check compiler that the\n * `NgForOf` structural directive renders its template with a specific context type.\n */\n NgForOf.ngTemplateContextGuard = function (dir, ctx) {\n return true;\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgForOf.prototype, \"ngForOf\", null);\n __decorate([\n Input(),\n __metadata(\"design:type\", Function),\n __metadata(\"design:paramtypes\", [Function])\n ], NgForOf.prototype, \"ngForTrackBy\", null);\n __decorate([\n Input(),\n __metadata(\"design:type\", TemplateRef),\n __metadata(\"design:paramtypes\", [TemplateRef])\n ], NgForOf.prototype, \"ngForTemplate\", null);\n NgForOf = __decorate([\n Directive({ selector: '[ngFor][ngForOf]' }),\n __metadata(\"design:paramtypes\", [ViewContainerRef, TemplateRef,\n IterableDiffers])\n ], NgForOf);\n return NgForOf;\n}());\nvar RecordViewTuple = /** @class */ (function () {\n function RecordViewTuple(record, view) {\n this.record = record;\n this.view = view;\n }\n return RecordViewTuple;\n}());\nfunction getTypeNameForDebugging(type) {\n return type['name'] || typeof type;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A structural directive that conditionally includes a template based on the value of\n * an expression coerced to Boolean.\n * When the expression evaluates to true, Angular renders the template\n * provided in a `then` clause, and when false or null,\n * Angular renders the template provided in an optional `else` clause. The default\n * template for the `else` clause is blank.\n *\n * A [shorthand form](guide/structural-directives#the-asterisk--prefix) of the directive,\n * `*ngIf=\"condition\"`, is generally used, provided\n * as an attribute of the anchor element for the inserted template.\n * Angular expands this into a more explicit version, in which the anchor element\n * is contained in an `` element.\n *\n * Simple form with shorthand syntax:\n *\n * ```\n *

Content to render when condition is true.

\n * ```\n *\n * Simple form with expanded syntax:\n *\n * ```\n *

Content to render when condition is\n * true.

\n * ```\n *\n * Form with an \"else\" block:\n *\n * ```\n *

Content to render when condition is true.

\n * Content to render when condition is false.\n * ```\n *\n * Shorthand form with \"then\" and \"else\" blocks:\n *\n * ```\n *

\n * Content to render when condition is true.\n * Content to render when condition is false.\n * ```\n *\n * Form with storing the value locally:\n *\n * ```\n *

\n * Content to render when value is null.\n * ```\n *\n * @usageNotes\n *\n * The `*ngIf` directive is most commonly used to conditionally show an inline template,\n * as seen in the following example.\n * The default `else` template is blank.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfSimple'}\n *\n * ### Showing an alternative template using `else`\n *\n * To display a template when `expression` evaluates to false, use an `else` template\n * binding as shown in the following example.\n * The `else` binding points to an `` element labeled `#elseBlock`.\n * The template can be defined anywhere in the component view, but is typically placed right after\n * `ngIf` for readability.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfElse'}\n *\n * ### Using an external `then` template\n *\n * In the previous example, the then-clause template is specified inline, as the content of the\n * tag that contains the `ngIf` directive. You can also specify a template that is defined\n * externally, by referencing a labeled `` element. When you do this, you can\n * change which template to use at runtime, as shown in the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfThenElse'}\n *\n * ### Storing a conditional result in a variable\n *\n * You might want to show a set of properties from the same object. If you are waiting\n * for asynchronous data, the object can be undefined.\n * In this case, you can use `ngIf` and store the result of the condition in a local\n * variable as shown in the the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfAs'}\n *\n * This code uses only one `AsyncPipe`, so only one subscription is created.\n * The conditional statement stores the result of `userStream|async` in the local variable `user`.\n * You can then bind the local `user` repeatedly.\n *\n * The conditional displays the data only if `userStream` returns a value,\n * so you don't need to use the\n * [safe-navigation-operator](guide/template-syntax#safe-navigation-operator) (`?.`)\n * to guard against null values when accessing properties.\n * You can display an alternative template while waiting for the data.\n *\n * ### Shorthand syntax\n *\n * The shorthand syntax `*ngIf` expands into two separate template specifications\n * for the \"then\" and \"else\" clauses. For example, consider the following shorthand statement,\n * that is meant to show a loading page while waiting for data to be loaded.\n *\n * ```\n *

\n * ...\n *

\n *\n * \n *

\n * \n * ```\n *\n * You can see that the \"else\" clause references the ``\n * with the `#loading` label, and the template for the \"then\" clause\n * is provided as the content of the anchor element.\n *\n * However, when Angular expands the shorthand syntax, it creates\n * another `` tag, with `ngIf` and `ngIfElse` directives.\n * The anchor element containing the template for the \"then\" clause becomes\n * the content of this unlabeled `` tag.\n *\n * ```\n * \n *

\n * ...\n *

\n * \n *\n * \n *

\n * \n * ```\n *\n * The presence of the implicit template object has implications for the nesting of\n * structural directives. For more on this subject, see\n * [Structural Directives](https://angular.io/guide/structural-directives#one-per-element).\n *\n * @ngModule CommonModule\n * @publicApi\n */\nvar NgIf = /** @class */ (function () {\n function NgIf(_viewContainer, templateRef) {\n this._viewContainer = _viewContainer;\n this._context = new NgIfContext();\n this._thenTemplateRef = null;\n this._elseTemplateRef = null;\n this._thenViewRef = null;\n this._elseViewRef = null;\n this._thenTemplateRef = templateRef;\n }\n Object.defineProperty(NgIf.prototype, \"ngIf\", {\n set: function (condition) {\n this._context.$implicit = this._context.ngIf = condition;\n this._updateView();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgIf.prototype, \"ngIfThen\", {\n set: function (templateRef) {\n assertTemplate('ngIfThen', templateRef);\n this._thenTemplateRef = templateRef;\n this._thenViewRef = null; // clear previous view if any.\n this._updateView();\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(NgIf.prototype, \"ngIfElse\", {\n set: function (templateRef) {\n assertTemplate('ngIfElse', templateRef);\n this._elseTemplateRef = templateRef;\n this._elseViewRef = null; // clear previous view if any.\n this._updateView();\n },\n enumerable: true,\n configurable: true\n });\n NgIf.prototype._updateView = function () {\n if (this._context.$implicit) {\n if (!this._thenViewRef) {\n this._viewContainer.clear();\n this._elseViewRef = null;\n if (this._thenTemplateRef) {\n this._thenViewRef =\n this._viewContainer.createEmbeddedView(this._thenTemplateRef, this._context);\n }\n }\n }\n else {\n if (!this._elseViewRef) {\n this._viewContainer.clear();\n this._thenViewRef = null;\n if (this._elseTemplateRef) {\n this._elseViewRef =\n this._viewContainer.createEmbeddedView(this._elseTemplateRef, this._context);\n }\n }\n }\n };\n /**\n * Assert the correct type of the expression bound to the `ngIf` input within the template.\n *\n * The presence of this method is a signal to the Ivy template type check compiler that when the\n * `NgIf` structural directive renders its template, the type of the expression bound to `ngIf`\n * should be narrowed in some way. For `NgIf`, it is narrowed to be non-null, which allows the\n * strictNullChecks feature of TypeScript to work with `NgIf`.\n */\n NgIf.ngTemplateGuard_ngIf = function (dir, expr) { return true; };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgIf.prototype, \"ngIf\", null);\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgIf.prototype, \"ngIfThen\", null);\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgIf.prototype, \"ngIfElse\", null);\n NgIf = __decorate([\n Directive({ selector: '[ngIf]' }),\n __metadata(\"design:paramtypes\", [ViewContainerRef, TemplateRef])\n ], NgIf);\n return NgIf;\n}());\n/**\n * @publicApi\n */\nvar NgIfContext = /** @class */ (function () {\n function NgIfContext() {\n this.$implicit = null;\n this.ngIf = null;\n }\n return NgIfContext;\n}());\nfunction assertTemplate(property, templateRef) {\n var isTemplateRefOrNull = !!(!templateRef || templateRef.createEmbeddedView);\n if (!isTemplateRefOrNull) {\n throw new Error(property + \" must be a TemplateRef, but received '\" + ɵstringify(templateRef) + \"'.\");\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar SwitchView = /** @class */ (function () {\n function SwitchView(_viewContainerRef, _templateRef) {\n this._viewContainerRef = _viewContainerRef;\n this._templateRef = _templateRef;\n this._created = false;\n }\n SwitchView.prototype.create = function () {\n this._created = true;\n this._viewContainerRef.createEmbeddedView(this._templateRef);\n };\n SwitchView.prototype.destroy = function () {\n this._created = false;\n this._viewContainerRef.clear();\n };\n SwitchView.prototype.enforceState = function (created) {\n if (created && !this._created) {\n this.create();\n }\n else if (!created && this._created) {\n this.destroy();\n }\n };\n return SwitchView;\n}());\n/**\n * @ngModule CommonModule\n *\n * @description A structural directive that adds or removes templates (displaying or hiding views)\n * when the next match expression matches the switch expression.\n *\n * The `[ngSwitch]` directive on a container specifies an expression to match against.\n * The expressions to match are provided by `ngSwitchCase` directives on views within the container.\n * - Every view that matches is rendered.\n * - If there are no matches, a view with the `ngSwitchDefault` directive is rendered.\n * - Elements within the `[NgSwitch]` statement but outside of any `NgSwitchCase`\n * or `ngSwitchDefault` directive are preserved at the location.\n *\n * @usageNotes\n * Define a container element for the directive, and specify the switch expression\n * to match against as an attribute:\n *\n * ```\n * \n * ```\n *\n * Within the container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * \n * ...\n * ...\n * ...\n * \n * ```\n *\n * ### Usage Examples\n *\n * The following example shows how to use more than one case to display the same view:\n *\n * ```\n * \n * \n * ...\n * ...\n * ...\n * \n * ...\n * \n * ```\n *\n * The following example shows how cases can be nested:\n * ```\n * \n * ...\n * ...\n * ...\n * \n * \n * \n * \n * \n * ...\n * \n * ```\n *\n * @publicApi\n * @see `NgSwitchCase`\n * @see `NgSwitchDefault`\n * @see [Stuctural Directives](guide/structural-directives)\n *\n */\nvar NgSwitch = /** @class */ (function () {\n function NgSwitch() {\n this._defaultUsed = false;\n this._caseCount = 0;\n this._lastCaseCheckIndex = 0;\n this._lastCasesMatched = false;\n }\n Object.defineProperty(NgSwitch.prototype, \"ngSwitch\", {\n set: function (newValue) {\n this._ngSwitch = newValue;\n if (this._caseCount === 0) {\n this._updateDefaultCases(true);\n }\n },\n enumerable: true,\n configurable: true\n });\n /** @internal */\n NgSwitch.prototype._addCase = function () { return this._caseCount++; };\n /** @internal */\n NgSwitch.prototype._addDefault = function (view) {\n if (!this._defaultViews) {\n this._defaultViews = [];\n }\n this._defaultViews.push(view);\n };\n /** @internal */\n NgSwitch.prototype._matchCase = function (value) {\n var matched = value == this._ngSwitch;\n this._lastCasesMatched = this._lastCasesMatched || matched;\n this._lastCaseCheckIndex++;\n if (this._lastCaseCheckIndex === this._caseCount) {\n this._updateDefaultCases(!this._lastCasesMatched);\n this._lastCaseCheckIndex = 0;\n this._lastCasesMatched = false;\n }\n return matched;\n };\n NgSwitch.prototype._updateDefaultCases = function (useDefault) {\n if (this._defaultViews && useDefault !== this._defaultUsed) {\n this._defaultUsed = useDefault;\n for (var i = 0; i < this._defaultViews.length; i++) {\n var defaultView = this._defaultViews[i];\n defaultView.enforceState(useDefault);\n }\n }\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgSwitch.prototype, \"ngSwitch\", null);\n NgSwitch = __decorate([\n Directive({ selector: '[ngSwitch]' })\n ], NgSwitch);\n return NgSwitch;\n}());\n/**\n * @ngModule CommonModule\n *\n * @description\n * Provides a switch case expression to match against an enclosing `ngSwitch` expression.\n * When the expressions match, the given `NgSwitchCase` template is rendered.\n * If multiple match expressions match the switch expression value, all of them are displayed.\n *\n * @usageNotes\n *\n * Within a switch container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * \n * ...\n * ...\n * ...\n * \n * ```\n *\n * Each switch-case statement contains an in-line HTML template or template reference\n * that defines the subtree to be selected if the value of the match expression\n * matches the value of the switch expression.\n *\n * Unlike JavaScript, which uses strict equality, Angular uses loose equality.\n * This means that the empty string, `\"\"` matches 0.\n *\n * @publicApi\n * @see `NgSwitch`\n * @see `NgSwitchDefault`\n *\n */\nvar NgSwitchCase = /** @class */ (function () {\n function NgSwitchCase(viewContainer, templateRef, ngSwitch) {\n this.ngSwitch = ngSwitch;\n ngSwitch._addCase();\n this._view = new SwitchView(viewContainer, templateRef);\n }\n /**\n * Performs case matching. For internal use only.\n */\n NgSwitchCase.prototype.ngDoCheck = function () { this._view.enforceState(this.ngSwitch._matchCase(this.ngSwitchCase)); };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object)\n ], NgSwitchCase.prototype, \"ngSwitchCase\", void 0);\n NgSwitchCase = __decorate([\n Directive({ selector: '[ngSwitchCase]' }),\n __param(2, Host()),\n __metadata(\"design:paramtypes\", [ViewContainerRef, TemplateRef,\n NgSwitch])\n ], NgSwitchCase);\n return NgSwitchCase;\n}());\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that is rendered when no `NgSwitchCase` expressions\n * match the `NgSwitch` expression.\n * This statement should be the final case in an `NgSwitch`.\n *\n * @publicApi\n * @see `NgSwitch`\n * @see `NgSwitchCase`\n *\n */\nvar NgSwitchDefault = /** @class */ (function () {\n function NgSwitchDefault(viewContainer, templateRef, ngSwitch) {\n ngSwitch._addDefault(new SwitchView(viewContainer, templateRef));\n }\n NgSwitchDefault = __decorate([\n Directive({ selector: '[ngSwitchDefault]' }),\n __param(2, Host()),\n __metadata(\"design:paramtypes\", [ViewContainerRef, TemplateRef,\n NgSwitch])\n ], NgSwitchDefault);\n return NgSwitchDefault;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n * \n * there is nothing\n * there is one\n * there are a few\n * \n * ```\n *\n * @description\n *\n * Adds / removes DOM sub-trees based on a numeric value. Tailored for pluralization.\n *\n * Displays DOM sub-trees that match the switch expression value, or failing that, DOM sub-trees\n * that match the switch expression's pluralization category.\n *\n * To use this directive you must provide a container element that sets the `[ngPlural]` attribute\n * to a switch expression. Inner elements with a `[ngPluralCase]` will display based on their\n * expression:\n * - if `[ngPluralCase]` is set to a value starting with `=`, it will only display if the value\n * matches the switch expression exactly,\n * - otherwise, the view will be treated as a \"category match\", and will only display if exact\n * value matches aren't found and the value maps to its category for the defined locale.\n *\n * See http://cldr.unicode.org/index/cldr-spec/plural-rules\n *\n * @publicApi\n */\nvar NgPlural = /** @class */ (function () {\n function NgPlural(_localization) {\n this._localization = _localization;\n this._caseViews = {};\n }\n Object.defineProperty(NgPlural.prototype, \"ngPlural\", {\n set: function (value) {\n this._switchValue = value;\n this._updateView();\n },\n enumerable: true,\n configurable: true\n });\n NgPlural.prototype.addCase = function (value, switchView) { this._caseViews[value] = switchView; };\n NgPlural.prototype._updateView = function () {\n this._clearViews();\n var cases = Object.keys(this._caseViews);\n var key = getPluralCategory(this._switchValue, cases, this._localization);\n this._activateView(this._caseViews[key]);\n };\n NgPlural.prototype._clearViews = function () {\n if (this._activeView)\n this._activeView.destroy();\n };\n NgPlural.prototype._activateView = function (view) {\n if (view) {\n this._activeView = view;\n this._activeView.create();\n }\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Number),\n __metadata(\"design:paramtypes\", [Number])\n ], NgPlural.prototype, \"ngPlural\", null);\n NgPlural = __decorate([\n Directive({ selector: '[ngPlural]' }),\n __metadata(\"design:paramtypes\", [NgLocalization])\n ], NgPlural);\n return NgPlural;\n}());\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that will be added/removed from the parent {@link NgPlural} when the\n * given expression matches the plural expression according to CLDR rules.\n *\n * @usageNotes\n * ```\n * \n * ...\n * ...\n * \n *```\n *\n * See {@link NgPlural} for more details and example.\n *\n * @publicApi\n */\nvar NgPluralCase = /** @class */ (function () {\n function NgPluralCase(value, template, viewContainer, ngPlural) {\n this.value = value;\n var isANumber = !isNaN(Number(value));\n ngPlural.addCase(isANumber ? \"=\" + value : value, new SwitchView(viewContainer, template));\n }\n NgPluralCase = __decorate([\n Directive({ selector: '[ngPluralCase]' }),\n __param(0, Attribute('ngPluralCase')),\n __param(3, Host()),\n __metadata(\"design:paramtypes\", [String, TemplateRef,\n ViewContainerRef, NgPlural])\n ], NgPluralCase);\n return NgPluralCase;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n *\n * Set the font of the containing element to the result of an expression.\n *\n * ```\n * ...\n * ```\n *\n * Set the width of the containing element to a pixel value returned by an expression.\n *\n * ```\n * ...\n * ```\n *\n * Set a collection of style values using an expression that returns key-value pairs.\n *\n * ```\n * ...\n * ```\n *\n * @description\n *\n * An attribute directive that updates styles for the containing HTML element.\n * Sets one or more style properties, specified as colon-separated key-value pairs.\n * The key is a style name, with an optional `.` suffix\n * (such as 'top.px', 'font-style.em').\n * The value is an expression to be evaluated.\n * The resulting non-null value, expressed in the given unit,\n * is assigned to the given style property.\n * If the result of evaluation is null, the corresponding style is removed.\n *\n * @publicApi\n */\nvar NgStyle = /** @class */ (function () {\n function NgStyle(_differs, _ngEl, _renderer) {\n this._differs = _differs;\n this._ngEl = _ngEl;\n this._renderer = _renderer;\n }\n Object.defineProperty(NgStyle.prototype, \"ngStyle\", {\n set: function (\n /**\n * A map of style properties, specified as colon-separated\n * key-value pairs.\n * * The key is a style name, with an optional `.` suffix\n * (such as 'top.px', 'font-style.em').\n * * The value is an expression to be evaluated.\n */\n values) {\n this._ngStyle = values;\n if (!this._differ && values) {\n this._differ = this._differs.find(values).create();\n }\n },\n enumerable: true,\n configurable: true\n });\n /**\n * Applies the new styles if needed.\n */\n NgStyle.prototype.ngDoCheck = function () {\n if (this._differ) {\n var changes = this._differ.diff(this._ngStyle);\n if (changes) {\n this._applyChanges(changes);\n }\n }\n };\n NgStyle.prototype._applyChanges = function (changes) {\n var _this = this;\n changes.forEachRemovedItem(function (record) { return _this._setStyle(record.key, null); });\n changes.forEachAddedItem(function (record) { return _this._setStyle(record.key, record.currentValue); });\n changes.forEachChangedItem(function (record) { return _this._setStyle(record.key, record.currentValue); });\n };\n NgStyle.prototype._setStyle = function (nameAndUnit, value) {\n var _a = __read(nameAndUnit.split('.'), 2), name = _a[0], unit = _a[1];\n value = value != null && unit ? \"\" + value + unit : value;\n if (value != null) {\n this._renderer.setStyle(this._ngEl.nativeElement, name, value);\n }\n else {\n this._renderer.removeStyle(this._ngEl.nativeElement, name);\n }\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object),\n __metadata(\"design:paramtypes\", [Object])\n ], NgStyle.prototype, \"ngStyle\", null);\n NgStyle = __decorate([\n Directive({ selector: '[ngStyle]' }),\n __metadata(\"design:paramtypes\", [KeyValueDiffers, ElementRef, Renderer2])\n ], NgStyle);\n return NgStyle;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Inserts an embedded view from a prepared `TemplateRef`.\n *\n * You can attach a context object to the `EmbeddedViewRef` by setting `[ngTemplateOutletContext]`.\n * `[ngTemplateOutletContext]` should be an object, the object's keys will be available for binding\n * by the local template `let` declarations.\n *\n * @usageNotes\n * ```\n * \n * ```\n *\n * Using the key `$implicit` in the context object will set its value as default.\n *\n * ### Example\n *\n * {@example common/ngTemplateOutlet/ts/module.ts region='NgTemplateOutlet'}\n *\n * @publicApi\n */\nvar NgTemplateOutlet = /** @class */ (function () {\n function NgTemplateOutlet(_viewContainerRef) {\n this._viewContainerRef = _viewContainerRef;\n }\n NgTemplateOutlet.prototype.ngOnChanges = function (changes) {\n var recreateView = this._shouldRecreateView(changes);\n if (recreateView) {\n if (this._viewRef) {\n this._viewContainerRef.remove(this._viewContainerRef.indexOf(this._viewRef));\n }\n if (this.ngTemplateOutlet) {\n this._viewRef = this._viewContainerRef.createEmbeddedView(this.ngTemplateOutlet, this.ngTemplateOutletContext);\n }\n }\n else {\n if (this._viewRef && this.ngTemplateOutletContext) {\n this._updateExistingContext(this.ngTemplateOutletContext);\n }\n }\n };\n /**\n * We need to re-create existing embedded view if:\n * - templateRef has changed\n * - context has changes\n *\n * We mark context object as changed when the corresponding object\n * shape changes (new properties are added or existing properties are removed).\n * In other words we consider context with the same properties as \"the same\" even\n * if object reference changes (see https://github.com/angular/angular/issues/13407).\n */\n NgTemplateOutlet.prototype._shouldRecreateView = function (changes) {\n var ctxChange = changes['ngTemplateOutletContext'];\n return !!changes['ngTemplateOutlet'] || (ctxChange && this._hasContextShapeChanged(ctxChange));\n };\n NgTemplateOutlet.prototype._hasContextShapeChanged = function (ctxChange) {\n var e_1, _a;\n var prevCtxKeys = Object.keys(ctxChange.previousValue || {});\n var currCtxKeys = Object.keys(ctxChange.currentValue || {});\n if (prevCtxKeys.length === currCtxKeys.length) {\n try {\n for (var currCtxKeys_1 = __values(currCtxKeys), currCtxKeys_1_1 = currCtxKeys_1.next(); !currCtxKeys_1_1.done; currCtxKeys_1_1 = currCtxKeys_1.next()) {\n var propName = currCtxKeys_1_1.value;\n if (prevCtxKeys.indexOf(propName) === -1) {\n return true;\n }\n }\n }\n catch (e_1_1) { e_1 = { error: e_1_1 }; }\n finally {\n try {\n if (currCtxKeys_1_1 && !currCtxKeys_1_1.done && (_a = currCtxKeys_1.return)) _a.call(currCtxKeys_1);\n }\n finally { if (e_1) throw e_1.error; }\n }\n return false;\n }\n else {\n return true;\n }\n };\n NgTemplateOutlet.prototype._updateExistingContext = function (ctx) {\n var e_2, _a;\n try {\n for (var _b = __values(Object.keys(ctx)), _c = _b.next(); !_c.done; _c = _b.next()) {\n var propName = _c.value;\n this._viewRef.context[propName] = this.ngTemplateOutletContext[propName];\n }\n }\n catch (e_2_1) { e_2 = { error: e_2_1 }; }\n finally {\n try {\n if (_c && !_c.done && (_a = _b.return)) _a.call(_b);\n }\n finally { if (e_2) throw e_2.error; }\n }\n };\n __decorate([\n Input(),\n __metadata(\"design:type\", Object)\n ], NgTemplateOutlet.prototype, \"ngTemplateOutletContext\", void 0);\n __decorate([\n Input(),\n __metadata(\"design:type\", TemplateRef)\n ], NgTemplateOutlet.prototype, \"ngTemplateOutlet\", void 0);\n NgTemplateOutlet = __decorate([\n Directive({ selector: '[ngTemplateOutlet]' }),\n __metadata(\"design:paramtypes\", [ViewContainerRef])\n ], NgTemplateOutlet);\n return NgTemplateOutlet;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A collection of Angular directives that are likely to be used in each and every Angular\n * application.\n */\nvar COMMON_DIRECTIVES = [\n NgClass,\n NgComponentOutlet,\n NgForOf,\n NgIf,\n NgTemplateOutlet,\n NgStyle,\n NgSwitch,\n NgSwitchCase,\n NgSwitchDefault,\n NgPlural,\n NgPluralCase,\n];\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction invalidPipeArgumentError(type, value) {\n return Error(\"InvalidPipeArgument: '\" + value + \"' for pipe '\" + ɵstringify(type) + \"'\");\n}\n\nvar NumberFormatter = /** @class */ (function () {\n function NumberFormatter() {\n }\n NumberFormatter.format = function (num, locale, style, opts) {\n if (opts === void 0) { opts = {}; }\n var minimumIntegerDigits = opts.minimumIntegerDigits, minimumFractionDigits = opts.minimumFractionDigits, maximumFractionDigits = opts.maximumFractionDigits, currency = opts.currency, _a = opts.currencyAsSymbol, currencyAsSymbol = _a === void 0 ? false : _a;\n var options = {\n minimumIntegerDigits: minimumIntegerDigits,\n minimumFractionDigits: minimumFractionDigits,\n maximumFractionDigits: maximumFractionDigits,\n style: NumberFormatStyle[style].toLowerCase()\n };\n if (style == NumberFormatStyle.Currency) {\n options.currency = typeof currency == 'string' ? currency : undefined;\n options.currencyDisplay = currencyAsSymbol ? 'symbol' : 'code';\n }\n return new Intl.NumberFormat(locale, options).format(num);\n };\n return NumberFormatter;\n}());\nvar DATE_FORMATS_SPLIT$1 = /((?:[^yMLdHhmsazZEwGjJ']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|J+|j+|m+|s+|a|z|Z|G+|w+))(.*)/;\nvar PATTERN_ALIASES = {\n // Keys are quoted so they do not get renamed during closure compilation.\n 'yMMMdjms': datePartGetterFactory(combine([\n digitCondition('year', 1),\n nameCondition('month', 3),\n digitCondition('day', 1),\n digitCondition('hour', 1),\n digitCondition('minute', 1),\n digitCondition('second', 1),\n ])),\n 'yMdjm': datePartGetterFactory(combine([\n digitCondition('year', 1), digitCondition('month', 1), digitCondition('day', 1),\n digitCondition('hour', 1), digitCondition('minute', 1)\n ])),\n 'yMMMMEEEEd': datePartGetterFactory(combine([\n digitCondition('year', 1), nameCondition('month', 4), nameCondition('weekday', 4),\n digitCondition('day', 1)\n ])),\n 'yMMMMd': datePartGetterFactory(combine([digitCondition('year', 1), nameCondition('month', 4), digitCondition('day', 1)])),\n 'yMMMd': datePartGetterFactory(combine([digitCondition('year', 1), nameCondition('month', 3), digitCondition('day', 1)])),\n 'yMd': datePartGetterFactory(combine([digitCondition('year', 1), digitCondition('month', 1), digitCondition('day', 1)])),\n 'jms': datePartGetterFactory(combine([digitCondition('hour', 1), digitCondition('second', 1), digitCondition('minute', 1)])),\n 'jm': datePartGetterFactory(combine([digitCondition('hour', 1), digitCondition('minute', 1)]))\n};\nvar DATE_FORMATS$1 = {\n // Keys are quoted so they do not get renamed.\n 'yyyy': datePartGetterFactory(digitCondition('year', 4)),\n 'yy': datePartGetterFactory(digitCondition('year', 2)),\n 'y': datePartGetterFactory(digitCondition('year', 1)),\n 'MMMM': datePartGetterFactory(nameCondition('month', 4)),\n 'MMM': datePartGetterFactory(nameCondition('month', 3)),\n 'MM': datePartGetterFactory(digitCondition('month', 2)),\n 'M': datePartGetterFactory(digitCondition('month', 1)),\n 'LLLL': datePartGetterFactory(nameCondition('month', 4)),\n 'L': datePartGetterFactory(nameCondition('month', 1)),\n 'dd': datePartGetterFactory(digitCondition('day', 2)),\n 'd': datePartGetterFactory(digitCondition('day', 1)),\n 'HH': digitModifier(hourExtractor(datePartGetterFactory(hour12Modify(digitCondition('hour', 2), false)))),\n 'H': hourExtractor(datePartGetterFactory(hour12Modify(digitCondition('hour', 1), false))),\n 'hh': digitModifier(hourExtractor(datePartGetterFactory(hour12Modify(digitCondition('hour', 2), true)))),\n 'h': hourExtractor(datePartGetterFactory(hour12Modify(digitCondition('hour', 1), true))),\n 'jj': datePartGetterFactory(digitCondition('hour', 2)),\n 'j': datePartGetterFactory(digitCondition('hour', 1)),\n 'mm': digitModifier(datePartGetterFactory(digitCondition('minute', 2))),\n 'm': datePartGetterFactory(digitCondition('minute', 1)),\n 'ss': digitModifier(datePartGetterFactory(digitCondition('second', 2))),\n 's': datePartGetterFactory(digitCondition('second', 1)),\n // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n // we can be just safely rely on using `sss` since we currently don't support single or two digit\n // fractions\n 'sss': datePartGetterFactory(digitCondition('second', 3)),\n 'EEEE': datePartGetterFactory(nameCondition('weekday', 4)),\n 'EEE': datePartGetterFactory(nameCondition('weekday', 3)),\n 'EE': datePartGetterFactory(nameCondition('weekday', 2)),\n 'E': datePartGetterFactory(nameCondition('weekday', 1)),\n 'a': hourClockExtractor(datePartGetterFactory(hour12Modify(digitCondition('hour', 1), true))),\n 'Z': timeZoneGetter$1('short'),\n 'z': timeZoneGetter$1('long'),\n 'ww': datePartGetterFactory({}),\n // first Thursday of the year. not support ?\n 'w': datePartGetterFactory({}),\n // of the year not support ?\n 'G': datePartGetterFactory(nameCondition('era', 1)),\n 'GG': datePartGetterFactory(nameCondition('era', 2)),\n 'GGG': datePartGetterFactory(nameCondition('era', 3)),\n 'GGGG': datePartGetterFactory(nameCondition('era', 4))\n};\nfunction digitModifier(inner) {\n return function (date, locale) {\n var result = inner(date, locale);\n return result.length == 1 ? '0' + result : result;\n };\n}\nfunction hourClockExtractor(inner) {\n return function (date, locale) { return inner(date, locale).split(' ')[1]; };\n}\nfunction hourExtractor(inner) {\n return function (date, locale) { return inner(date, locale).split(' ')[0]; };\n}\nfunction intlDateFormat(date, locale, options) {\n return new Intl.DateTimeFormat(locale, options).format(date).replace(/[\\u200e\\u200f]/g, '');\n}\nfunction timeZoneGetter$1(timezone) {\n // To workaround `Intl` API restriction for single timezone let format with 24 hours\n var options = { hour: '2-digit', hour12: false, timeZoneName: timezone };\n return function (date, locale) {\n var result = intlDateFormat(date, locale, options);\n // Then extract first 3 letters that related to hours\n return result ? result.substring(3) : '';\n };\n}\nfunction hour12Modify(options, value) {\n options.hour12 = value;\n return options;\n}\nfunction digitCondition(prop, len) {\n var result = {};\n result[prop] = len === 2 ? '2-digit' : 'numeric';\n return result;\n}\nfunction nameCondition(prop, len) {\n var result = {};\n if (len < 4) {\n result[prop] = len > 1 ? 'short' : 'narrow';\n }\n else {\n result[prop] = 'long';\n }\n return result;\n}\nfunction combine(options) {\n return options.reduce(function (merged, opt) { return (__assign({}, merged, opt)); }, {});\n}\nfunction datePartGetterFactory(ret) {\n return function (date, locale) { return intlDateFormat(date, locale, ret); };\n}\nvar DATE_FORMATTER_CACHE = new Map();\nfunction dateFormatter(format, date, locale) {\n var fn = PATTERN_ALIASES[format];\n if (fn)\n return fn(date, locale);\n var cacheKey = format;\n var parts = DATE_FORMATTER_CACHE.get(cacheKey);\n if (!parts) {\n parts = [];\n var match = void 0;\n DATE_FORMATS_SPLIT$1.exec(format);\n var _format = format;\n while (_format) {\n match = DATE_FORMATS_SPLIT$1.exec(_format);\n if (match) {\n parts = parts.concat(match.slice(1));\n _format = parts.pop();\n }\n else {\n parts.push(_format);\n _format = null;\n }\n }\n DATE_FORMATTER_CACHE.set(cacheKey, parts);\n }\n return parts.reduce(function (text, part) {\n var fn = DATE_FORMATS$1[part];\n return text + (fn ? fn(date, locale) : partToTime(part));\n }, '');\n}\nfunction partToTime(part) {\n return part === '\\'\\'' ? '\\'' : part.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n}\nvar DateFormatter = /** @class */ (function () {\n function DateFormatter() {\n }\n DateFormatter.format = function (date, locale, pattern) {\n return dateFormatter(pattern, date, locale);\n };\n return DateFormatter;\n}());\n\n/**\n* @license\n* Copyright Google Inc. All Rights Reserved.\n*\n* Use of this source code is governed by an MIT-style license that can be\n* found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date according to locale rules.\n *\n * Where:\n * - `expression` is a date object or a number (milliseconds since UTC epoch) or an ISO string\n * (https://www.w3.org/TR/NOTE-datetime).\n * - `format` indicates which date/time components to include. The format can be predefined as\n * shown below or custom as shown in the table.\n * - `'medium'`: equivalent to `'yMMMdjms'` (e.g. `Sep 3, 2010, 12:05:08 PM` for `en-US`)\n * - `'short'`: equivalent to `'yMdjm'` (e.g. `9/3/2010, 12:05 PM` for `en-US`)\n * - `'fullDate'`: equivalent to `'yMMMMEEEEd'` (e.g. `Friday, September 3, 2010` for `en-US`)\n * - `'longDate'`: equivalent to `'yMMMMd'` (e.g. `September 3, 2010` for `en-US`)\n * - `'mediumDate'`: equivalent to `'yMMMd'` (e.g. `Sep 3, 2010` for `en-US`)\n * - `'shortDate'`: equivalent to `'yMd'` (e.g. `9/3/2010` for `en-US`)\n * - `'mediumTime'`: equivalent to `'jms'` (e.g. `12:05:08 PM` for `en-US`)\n * - `'shortTime'`: equivalent to `'jm'` (e.g. `12:05 PM` for `en-US`)\n *\n *\n * | Component | Symbol | Narrow | Short Form | Long Form | Numeric | 2-digit |\n * |-----------|:------:|--------|--------------|-------------------|-----------|-----------|\n * | era | G | G (A) | GGG (AD) | GGGG (Anno Domini)| - | - |\n * | year | y | - | - | - | y (2015) | yy (15) |\n * | month | M | L (S) | MMM (Sep) | MMMM (September) | M (9) | MM (09) |\n * | day | d | - | - | - | d (3) | dd (03) |\n * | weekday | E | E (S) | EEE (Sun) | EEEE (Sunday) | - | - |\n * | hour | j | - | - | - | j (13) | jj (13) |\n * | hour12 | h | - | - | - | h (1 PM) | hh (01 PM)|\n * | hour24 | H | - | - | - | H (13) | HH (13) |\n * | minute | m | - | - | - | m (5) | mm (05) |\n * | second | s | - | - | - | s (9) | ss (09) |\n * | timezone | z | - | - | z (Pacific Standard Time)| - | - |\n * | timezone | Z | - | Z (GMT-8:00) | - | - | - |\n * | timezone | a | - | a (PM) | - | - | - |\n *\n * In javascript, only the components specified will be respected (not the ordering,\n * punctuations, ...) and details of the formatting will be dependent on the locale.\n *\n * Timezone of the formatted text will be the local system timezone of the end-user's machine.\n *\n * When the expression is a ISO string without time (e.g. 2016-09-19) the time zone offset is not\n * applied and the formatted text will have the same day, month and year of the expression.\n *\n * WARNINGS:\n * - this pipe is marked as pure hence it will not be re-evaluated when the input is mutated.\n * Instead users should treat the date as an immutable object and change the reference when the\n * pipe needs to re-run (this is to avoid reformatting the date on every change detection run\n * which would be an expensive operation).\n * - this pipe uses the Internationalization API. Therefore it is only reliable in Chrome and Opera\n * browsers.\n *\n * @usageNotes\n *\n * ### Examples\n *\n * Assuming `dateObj` is (year: 2010, month: 9, day: 3, hour: 12 PM, minute: 05, second: 08)\n * in the _local_ time and locale is 'en-US':\n *\n * {@example common/pipes/ts/date_pipe.ts region='DeprecatedDatePipe'}\n *\n * @publicApi\n */\nvar DeprecatedDatePipe = /** @class */ (function () {\n function DeprecatedDatePipe(_locale) {\n this._locale = _locale;\n }\n DeprecatedDatePipe_1 = DeprecatedDatePipe;\n DeprecatedDatePipe.prototype.transform = function (value, pattern) {\n if (pattern === void 0) { pattern = 'mediumDate'; }\n if (value == null || value === '' || value !== value)\n return null;\n var date;\n if (typeof value === 'string') {\n value = value.trim();\n }\n if (isDate$1(value)) {\n date = value;\n }\n else if (!isNaN(value - parseFloat(value))) {\n date = new Date(parseFloat(value));\n }\n else if (typeof value === 'string' && /^(\\d{4}-\\d{1,2}-\\d{1,2})$/.test(value)) {\n /**\n * For ISO Strings without time the day, month and year must be extracted from the ISO String\n * before Date creation to avoid time offset and errors in the new Date.\n * If we only replace '-' with ',' in the ISO String (\"2015,01,01\"), and try to create a new\n * date, some browsers (e.g. IE 9) will throw an invalid Date error\n * If we leave the '-' (\"2015-01-01\") and try to create a new Date(\"2015-01-01\") the\n * timeoffset\n * is applied\n * Note: ISO months are 0 for January, 1 for February, ...\n */\n var _a = __read(value.split('-').map(function (val) { return parseInt(val, 10); }), 3), y = _a[0], m = _a[1], d = _a[2];\n date = new Date(y, m - 1, d);\n }\n else {\n date = new Date(value);\n }\n if (!isDate$1(date)) {\n var match = void 0;\n if ((typeof value === 'string') && (match = value.match(ISO8601_DATE_REGEX))) {\n date = isoStringToDate(match);\n }\n else {\n throw invalidPipeArgumentError(DeprecatedDatePipe_1, value);\n }\n }\n return DateFormatter.format(date, this._locale, DeprecatedDatePipe_1._ALIASES[pattern] || pattern);\n };\n var DeprecatedDatePipe_1;\n /** @internal */\n DeprecatedDatePipe._ALIASES = {\n 'medium': 'yMMMdjms',\n 'short': 'yMdjm',\n 'fullDate': 'yMMMMEEEEd',\n 'longDate': 'yMMMMd',\n 'mediumDate': 'yMMMd',\n 'shortDate': 'yMd',\n 'mediumTime': 'jms',\n 'shortTime': 'jm'\n };\n DeprecatedDatePipe = DeprecatedDatePipe_1 = __decorate([\n Pipe({ name: 'date', pure: true }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DeprecatedDatePipe);\n return DeprecatedDatePipe;\n}());\nfunction isDate$1(value) {\n return value instanceof Date && !isNaN(value.valueOf());\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction formatNumber$1(pipe, locale, value, style, digits, currency, currencyAsSymbol) {\n if (currency === void 0) { currency = null; }\n if (currencyAsSymbol === void 0) { currencyAsSymbol = false; }\n if (value == null)\n return null;\n // Convert strings to numbers\n value = typeof value === 'string' && !isNaN(+value - parseFloat(value)) ? +value : value;\n if (typeof value !== 'number') {\n throw invalidPipeArgumentError(pipe, value);\n }\n var minInt;\n var minFraction;\n var maxFraction;\n if (style !== NumberFormatStyle.Currency) {\n // rely on Intl default for currency\n minInt = 1;\n minFraction = 0;\n maxFraction = 3;\n }\n if (digits) {\n var parts = digits.match(NUMBER_FORMAT_REGEXP);\n if (parts === null) {\n throw new Error(digits + \" is not a valid digit info for number pipes\");\n }\n if (parts[1] != null) { // min integer digits\n minInt = parseIntAutoRadix(parts[1]);\n }\n if (parts[3] != null) { // min fraction digits\n minFraction = parseIntAutoRadix(parts[3]);\n }\n if (parts[5] != null) { // max fraction digits\n maxFraction = parseIntAutoRadix(parts[5]);\n }\n }\n return NumberFormatter.format(value, locale, style, {\n minimumIntegerDigits: minInt,\n minimumFractionDigits: minFraction,\n maximumFractionDigits: maxFraction,\n currency: currency,\n currencyAsSymbol: currencyAsSymbol,\n });\n}\n/**\n * Formats a number as text. Group sizing and separator and other locale-specific\n * configurations are based on the active locale.\n *\n * where `expression` is a number:\n * - `digitInfo` is a `string` which has a following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}\n * - `minIntegerDigits` is the minimum number of integer digits to use. Defaults to `1`.\n * - `minFractionDigits` is the minimum number of digits after fraction. Defaults to `0`.\n * - `maxFractionDigits` is the maximum number of digits after fraction. Defaults to `3`.\n *\n * For more information on the acceptable range for each of these numbers and other\n * details see your native internationalization library.\n *\n * WARNING: this pipe uses the Internationalization API which is not yet available in all browsers\n * and may require a polyfill. See [Browser Support](guide/browser-support) for details.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/number_pipe.ts region='DeprecatedNumberPipe'}\n *\n * @ngModule CommonModule\n * @publicApi\n */\nvar DeprecatedDecimalPipe = /** @class */ (function () {\n function DeprecatedDecimalPipe(_locale) {\n this._locale = _locale;\n }\n DeprecatedDecimalPipe_1 = DeprecatedDecimalPipe;\n DeprecatedDecimalPipe.prototype.transform = function (value, digits) {\n return formatNumber$1(DeprecatedDecimalPipe_1, this._locale, value, NumberFormatStyle.Decimal, digits);\n };\n var DeprecatedDecimalPipe_1;\n DeprecatedDecimalPipe = DeprecatedDecimalPipe_1 = __decorate([\n Pipe({ name: 'number' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DeprecatedDecimalPipe);\n return DeprecatedDecimalPipe;\n}());\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Formats a number as percentage according to locale rules.\n *\n * - `digitInfo` See {@link DecimalPipe} for detailed description.\n *\n * WARNING: this pipe uses the Internationalization API which is not yet available in all browsers\n * and may require a polyfill. See [Browser Support](guide/browser-support) for details.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/percent_pipe.ts region='DeprecatedPercentPipe'}\n *\n * @publicApi\n */\nvar DeprecatedPercentPipe = /** @class */ (function () {\n function DeprecatedPercentPipe(_locale) {\n this._locale = _locale;\n }\n DeprecatedPercentPipe_1 = DeprecatedPercentPipe;\n DeprecatedPercentPipe.prototype.transform = function (value, digits) {\n return formatNumber$1(DeprecatedPercentPipe_1, this._locale, value, NumberFormatStyle.Percent, digits);\n };\n var DeprecatedPercentPipe_1;\n DeprecatedPercentPipe = DeprecatedPercentPipe_1 = __decorate([\n Pipe({ name: 'percent' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DeprecatedPercentPipe);\n return DeprecatedPercentPipe;\n}());\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as currency using locale rules.\n *\n * Use `currency` to format a number as currency.\n *\n * - `currencyCode` is the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) currency code, such\n * as `USD` for the US dollar and `EUR` for the euro.\n * - `symbolDisplay` is a boolean indicating whether to use the currency symbol or code.\n * - `true`: use symbol (e.g. `$`).\n * - `false`(default): use code (e.g. `USD`).\n * - `digitInfo` See {@link DecimalPipe} for detailed description.\n *\n * WARNING: this pipe uses the Internationalization API which is not yet available in all browsers\n * and may require a polyfill. See [Browser Support](guide/browser-support) for details.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/currency_pipe.ts region='DeprecatedCurrencyPipe'}\n *\n * @publicApi\n */\nvar DeprecatedCurrencyPipe = /** @class */ (function () {\n function DeprecatedCurrencyPipe(_locale) {\n this._locale = _locale;\n }\n DeprecatedCurrencyPipe_1 = DeprecatedCurrencyPipe;\n DeprecatedCurrencyPipe.prototype.transform = function (value, currencyCode, symbolDisplay, digits) {\n if (currencyCode === void 0) { currencyCode = 'USD'; }\n if (symbolDisplay === void 0) { symbolDisplay = false; }\n return formatNumber$1(DeprecatedCurrencyPipe_1, this._locale, value, NumberFormatStyle.Currency, digits, currencyCode, symbolDisplay);\n };\n var DeprecatedCurrencyPipe_1;\n DeprecatedCurrencyPipe = DeprecatedCurrencyPipe_1 = __decorate([\n Pipe({ name: 'currency' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DeprecatedCurrencyPipe);\n return DeprecatedCurrencyPipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A collection of deprecated i18n pipes that require intl api\n *\n * @deprecated from v5\n */\nvar COMMON_DEPRECATED_I18N_PIPES = [DeprecatedDecimalPipe, DeprecatedPercentPipe, DeprecatedCurrencyPipe, DeprecatedDatePipe];\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar ObservableStrategy = /** @class */ (function () {\n function ObservableStrategy() {\n }\n ObservableStrategy.prototype.createSubscription = function (async, updateLatestValue) {\n return async.subscribe({ next: updateLatestValue, error: function (e) { throw e; } });\n };\n ObservableStrategy.prototype.dispose = function (subscription) { subscription.unsubscribe(); };\n ObservableStrategy.prototype.onDestroy = function (subscription) { subscription.unsubscribe(); };\n return ObservableStrategy;\n}());\nvar PromiseStrategy = /** @class */ (function () {\n function PromiseStrategy() {\n }\n PromiseStrategy.prototype.createSubscription = function (async, updateLatestValue) {\n return async.then(updateLatestValue, function (e) { throw e; });\n };\n PromiseStrategy.prototype.dispose = function (subscription) { };\n PromiseStrategy.prototype.onDestroy = function (subscription) { };\n return PromiseStrategy;\n}());\nvar _promiseStrategy = new PromiseStrategy();\nvar _observableStrategy = new ObservableStrategy();\n/**\n * @ngModule CommonModule\n * @description\n *\n * Unwraps a value from an asynchronous primitive.\n *\n * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has\n * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for\n * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid\n * potential memory leaks.\n *\n * @usageNotes\n *\n * ### Examples\n *\n * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the\n * promise.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}\n *\n * It's also possible to use `async` with Observables. The example below binds the `time` Observable\n * to the view. The Observable continuously updates the view with the current time.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}\n *\n * @publicApi\n */\nvar AsyncPipe = /** @class */ (function () {\n function AsyncPipe(_ref) {\n this._ref = _ref;\n this._latestValue = null;\n this._latestReturnedValue = null;\n this._subscription = null;\n this._obj = null;\n this._strategy = null;\n }\n AsyncPipe_1 = AsyncPipe;\n AsyncPipe.prototype.ngOnDestroy = function () {\n if (this._subscription) {\n this._dispose();\n }\n };\n AsyncPipe.prototype.transform = function (obj) {\n if (!this._obj) {\n if (obj) {\n this._subscribe(obj);\n }\n this._latestReturnedValue = this._latestValue;\n return this._latestValue;\n }\n if (obj !== this._obj) {\n this._dispose();\n return this.transform(obj);\n }\n if (this._latestValue === this._latestReturnedValue) {\n return this._latestReturnedValue;\n }\n this._latestReturnedValue = this._latestValue;\n return WrappedValue.wrap(this._latestValue);\n };\n AsyncPipe.prototype._subscribe = function (obj) {\n var _this = this;\n this._obj = obj;\n this._strategy = this._selectStrategy(obj);\n this._subscription = this._strategy.createSubscription(obj, function (value) { return _this._updateLatestValue(obj, value); });\n };\n AsyncPipe.prototype._selectStrategy = function (obj) {\n if (ɵisPromise(obj)) {\n return _promiseStrategy;\n }\n if (ɵisObservable(obj)) {\n return _observableStrategy;\n }\n throw invalidPipeArgumentError(AsyncPipe_1, obj);\n };\n AsyncPipe.prototype._dispose = function () {\n this._strategy.dispose(this._subscription);\n this._latestValue = null;\n this._latestReturnedValue = null;\n this._subscription = null;\n this._obj = null;\n };\n AsyncPipe.prototype._updateLatestValue = function (async, value) {\n if (async === this._obj) {\n this._latestValue = value;\n this._ref.markForCheck();\n }\n };\n var AsyncPipe_1;\n AsyncPipe = AsyncPipe_1 = __decorate([\n Pipe({ name: 'async', pure: false }),\n __metadata(\"design:paramtypes\", [ChangeDetectorRef])\n ], AsyncPipe);\n return AsyncPipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Transforms text to all lower case.\n *\n * @see `UpperCasePipe`\n * @see `TitleCasePipe`\n * @usageNotes\n *\n * The following example defines a view that allows the user to enter\n * text, and then uses the pipe to convert the input text to all lower case.\n *\n * \n *\n * @ngModule CommonModule\n * @publicApi\n */\nvar LowerCasePipe = /** @class */ (function () {\n function LowerCasePipe() {\n }\n LowerCasePipe_1 = LowerCasePipe;\n /**\n * @param value The string to transform to lower case.\n */\n LowerCasePipe.prototype.transform = function (value) {\n if (!value)\n return value;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(LowerCasePipe_1, value);\n }\n return value.toLowerCase();\n };\n var LowerCasePipe_1;\n LowerCasePipe = LowerCasePipe_1 = __decorate([\n Pipe({ name: 'lowercase' })\n ], LowerCasePipe);\n return LowerCasePipe;\n}());\n//\n// Regex below matches any Unicode word and compatible with ES5. In ES2018 the same result\n// can be achieved by using /\\p{L}\\S*/gu and also known as Unicode Property Escapes\n// (http://2ality.com/2017/07/regexp-unicode-property-escapes.html). Since there is no\n// transpilation of this functionality down to ES5 without external tool, the only solution is\n// to use already transpiled form. Example can be found here -\n// https://mothereff.in/regexpu#input=var+regex+%3D+/%5Cp%7BL%7D/u%3B&unicodePropertyEscape=1\n//\nvar unicodeWordMatch = 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* Transforms text to title case.\n * Capitalizes the first letter of each word, and transforms the\n * rest of the word to lower case.\n * Words are delimited by any whitespace character, such as a space, tab, or line-feed character.\n *\n * @see `LowerCasePipe`\n * @see `UpperCasePipe`\n *\n * @usageNotes\n * The following example shows the result of transforming various strings into title case.\n *\n * \n *\n * @ngModule CommonModule\n * @publicApi\n */\nvar TitleCasePipe = /** @class */ (function () {\n function TitleCasePipe() {\n }\n TitleCasePipe_1 = TitleCasePipe;\n /**\n * @param value The string to transform to title case.\n */\n TitleCasePipe.prototype.transform = function (value) {\n if (!value)\n return value;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(TitleCasePipe_1, value);\n }\n return value.replace(unicodeWordMatch, (function (txt) { return txt[0].toUpperCase() + txt.substr(1).toLowerCase(); }));\n };\n var TitleCasePipe_1;\n TitleCasePipe = TitleCasePipe_1 = __decorate([\n Pipe({ name: 'titlecase' })\n ], TitleCasePipe);\n return TitleCasePipe;\n}());\n/**\n * Transforms text to all upper case.\n * @see `LowerCasePipe`\n * @see `TitleCasePipe`\n *\n * @ngModule CommonModule\n * @publicApi\n */\nvar UpperCasePipe = /** @class */ (function () {\n function UpperCasePipe() {\n }\n UpperCasePipe_1 = UpperCasePipe;\n /**\n * @param value The string to transform to upper case.\n */\n UpperCasePipe.prototype.transform = function (value) {\n if (!value)\n return value;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(UpperCasePipe_1, value);\n }\n return value.toUpperCase();\n };\n var UpperCasePipe_1;\n UpperCasePipe = UpperCasePipe_1 = __decorate([\n Pipe({ name: 'uppercase' })\n ], UpperCasePipe);\n return UpperCasePipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// clang-format off\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date value according to locale rules.\n *\n * Only the `en-US` locale data comes with Angular. To localize dates\n * in another language, you must import the corresponding locale data.\n * See the [I18n guide](guide/i18n#i18n-pipes) for more information.\n *\n * @see `formatDate()`\n *\n *\n * @usageNotes\n *\n * The result of this pipe is not reevaluated when the input is mutated. To avoid the need to\n * reformat the date on every change-detection cycle, treat the date as an immutable object\n * and change the reference when the pipe needs to run again.\n *\n * ### Pre-defined format options\n *\n * Examples are given in `en-US` locale.\n *\n * - `'short'`: equivalent to `'M/d/yy, h:mm a'` (`6/15/15, 9:03 AM`).\n * - `'medium'`: equivalent to `'MMM d, y, h:mm:ss a'` (`Jun 15, 2015, 9:03:01 AM`).\n * - `'long'`: equivalent to `'MMMM d, y, h:mm:ss a z'` (`June 15, 2015 at 9:03:01 AM\n * GMT+1`).\n * - `'full'`: equivalent to `'EEEE, MMMM d, y, h:mm:ss a zzzz'` (`Monday, June 15, 2015 at\n * 9:03:01 AM GMT+01:00`).\n * - `'shortDate'`: equivalent to `'M/d/yy'` (`6/15/15`).\n * - `'mediumDate'`: equivalent to `'MMM d, y'` (`Jun 15, 2015`).\n * - `'longDate'`: equivalent to `'MMMM d, y'` (`June 15, 2015`).\n * - `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` (`Monday, June 15, 2015`).\n * - `'shortTime'`: equivalent to `'h:mm a'` (`9:03 AM`).\n * - `'mediumTime'`: equivalent to `'h:mm:ss a'` (`9:03:01 AM`).\n * - `'longTime'`: equivalent to `'h:mm:ss a z'` (`9:03:01 AM GMT+1`).\n * - `'fullTime'`: equivalent to `'h:mm:ss a zzzz'` (`9:03:01 AM GMT+01:00`).\n *\n * ### Custom format options\n *\n * You can construct a format string using symbols to specify the components\n * of a date-time value, as described in the following table.\n * Format details depend on the locale.\n * Fields marked with (*) are only available in the extra data set for the given locale.\n *\n * | Field type | Format | Description | Example Value |\n * |--------------------|-------------|---------------------------------------------------------------|------------------------------------------------------------|\n * | Era | G, GG & GGG | Abbreviated | AD |\n * | | GGGG | Wide | Anno Domini |\n * | | GGGGG | Narrow | A |\n * | Year | y | Numeric: minimum digits | 2, 20, 201, 2017, 20173 |\n * | | yy | Numeric: 2 digits + zero padded | 02, 20, 01, 17, 73 |\n * | | yyy | Numeric: 3 digits + zero padded | 002, 020, 201, 2017, 20173 |\n * | | yyyy | Numeric: 4 digits or more + zero padded | 0002, 0020, 0201, 2017, 20173 |\n * | Month | M | Numeric: 1 digit | 9, 12 |\n * | | MM | Numeric: 2 digits + zero padded | 09, 12 |\n * | | MMM | Abbreviated | Sep |\n * | | MMMM | Wide | September |\n * | | MMMMM | Narrow | S |\n * | Month standalone | L | Numeric: 1 digit | 9, 12 |\n * | | LL | Numeric: 2 digits + zero padded | 09, 12 |\n * | | LLL | Abbreviated | Sep |\n * | | LLLL | Wide | September |\n * | | LLLLL | Narrow | S |\n * | Week of year | w | Numeric: minimum digits | 1... 53 |\n * | | ww | Numeric: 2 digits + zero padded | 01... 53 |\n * | Week of month | W | Numeric: 1 digit | 1... 5 |\n * | Day of month | d | Numeric: minimum digits | 1 |\n * | | dd | Numeric: 2 digits + zero padded | 01 |\n * | Week day | E, EE & EEE | Abbreviated | Tue |\n * | | EEEE | Wide | Tuesday |\n * | | EEEEE | Narrow | T |\n * | | EEEEEE | Short | Tu |\n * | Period | a, aa & aaa | Abbreviated | am/pm or AM/PM |\n * | | aaaa | Wide (fallback to `a` when missing) | ante meridiem/post meridiem |\n * | | aaaaa | Narrow | a/p |\n * | Period* | B, BB & BBB | Abbreviated | mid. |\n * | | BBBB | Wide | am, pm, midnight, noon, morning, afternoon, evening, night |\n * | | BBBBB | Narrow | md |\n * | Period standalone* | b, bb & bbb | Abbreviated | mid. |\n * | | bbbb | Wide | am, pm, midnight, noon, morning, afternoon, evening, night |\n * | | bbbbb | Narrow | md |\n * | Hour 1-12 | h | Numeric: minimum digits | 1, 12 |\n * | | hh | Numeric: 2 digits + zero padded | 01, 12 |\n * | Hour 0-23 | H | Numeric: minimum digits | 0, 23 |\n * | | HH | Numeric: 2 digits + zero padded | 00, 23 |\n * | Minute | m | Numeric: minimum digits | 8, 59 |\n * | | mm | Numeric: 2 digits + zero padded | 08, 59 |\n * | Second | s | Numeric: minimum digits | 0... 59 |\n * | | ss | Numeric: 2 digits + zero padded | 00... 59 |\n * | Fractional seconds | S | Numeric: 1 digit | 0... 9 |\n * | | SS | Numeric: 2 digits + zero padded | 00... 99 |\n * | | SSS | Numeric: 3 digits + zero padded (= milliseconds) | 000... 999 |\n * | Zone | z, zz & zzz | Short specific non location format (fallback to O) | GMT-8 |\n * | | zzzz | Long specific non location format (fallback to OOOO) | GMT-08:00 |\n * | | Z, ZZ & ZZZ | ISO8601 basic format | -0800 |\n * | | ZZZZ | Long localized GMT format | GMT-8:00 |\n * | | ZZZZZ | ISO8601 extended format + Z indicator for offset 0 (= XXXXX) | -08:00 |\n * | | O, OO & OOO | Short localized GMT format | GMT-8 |\n * | | OOOO | Long localized GMT format | GMT-08:00 |\n *\n * Note that timezone correction is not applied to an ISO string that has no time component, such as \"2016-09-19\"\n *\n * ### Format examples\n *\n * These examples transform a date into various formats,\n * assuming that `dateObj` is a JavaScript `Date` object for\n * year: 2015, month: 6, day: 15, hour: 21, minute: 43, second: 11,\n * given in the local time for the `en-US` locale.\n *\n * ```\n * {{ dateObj | date }} // output is 'Jun 15, 2015'\n * {{ dateObj | date:'medium' }} // output is 'Jun 15, 2015, 9:43:11 PM'\n * {{ dateObj | date:'shortTime' }} // output is '9:43 PM'\n * {{ dateObj | date:'mmss' }} // output is '43:11'\n * ```\n *\n * ### Usage example\n *\n * The following component uses a date pipe to display the current date in different formats.\n *\n * ```\n * @Component({\n * selector: 'date-pipe',\n * template: `

\n *

Today is {{today | date}}

\n *

Or if you prefer, {{today | date:'fullDate'}}

\n *

The time is {{today | date:'h:mm a z'}}

\n *

`\n * })\n * // Get the current date and time as a date-time value.\n * export class DatePipeComponent {\n * today: number = Date.now();\n * }\n * ```\n *\n * @publicApi\n */\n// clang-format on\nvar DatePipe = /** @class */ (function () {\n function DatePipe(locale) {\n this.locale = locale;\n }\n DatePipe_1 = DatePipe;\n /**\n * @param value The date expression: a `Date` object, a number\n * (milliseconds since UTC epoch), or an ISO string (https://www.w3.org/TR/NOTE-datetime).\n * @param format The date/time components to include, using predefined options or a\n * custom format string.\n * @param timezone A timezone offset (such as `'+0430'`), or a standard\n * UTC/GMT or continental US timezone abbreviation. Default is\n * the local system timezone of the end-user's machine.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n * @returns A date string in the desired format.\n */\n DatePipe.prototype.transform = function (value, format, timezone, locale) {\n if (format === void 0) { format = 'mediumDate'; }\n if (value == null || value === '' || value !== value)\n return null;\n try {\n return formatDate(value, format, locale || this.locale, timezone);\n }\n catch (error) {\n throw invalidPipeArgumentError(DatePipe_1, error.message);\n }\n };\n var DatePipe_1;\n DatePipe = DatePipe_1 = __decorate([\n Pipe({ name: 'date', pure: true }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DatePipe);\n return DatePipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar _INTERPOLATION_REGEXP = /#/g;\n/**\n * @ngModule CommonModule\n * @description\n *\n * Maps a value to a string that pluralizes the value according to locale rules.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/i18n_pipe.ts region='I18nPluralPipeComponent'}\n *\n * @publicApi\n */\nvar I18nPluralPipe = /** @class */ (function () {\n function I18nPluralPipe(_localization) {\n this._localization = _localization;\n }\n I18nPluralPipe_1 = I18nPluralPipe;\n /**\n * @param value the number to be formatted\n * @param pluralMap an object that mimics the ICU format, see\n * http://userguide.icu-project.org/formatparse/messages.\n * @param locale a `string` defining the locale to use (uses the current {@link LOCALE_ID} by\n * default).\n */\n I18nPluralPipe.prototype.transform = function (value, pluralMap, locale) {\n if (value == null)\n return '';\n if (typeof pluralMap !== 'object' || pluralMap === null) {\n throw invalidPipeArgumentError(I18nPluralPipe_1, pluralMap);\n }\n var key = getPluralCategory(value, Object.keys(pluralMap), this._localization, locale);\n return pluralMap[key].replace(_INTERPOLATION_REGEXP, value.toString());\n };\n var I18nPluralPipe_1;\n I18nPluralPipe = I18nPluralPipe_1 = __decorate([\n Pipe({ name: 'i18nPlural', pure: true }),\n __metadata(\"design:paramtypes\", [NgLocalization])\n ], I18nPluralPipe);\n return I18nPluralPipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Generic selector that displays the string that matches the current value.\n *\n * If none of the keys of the `mapping` match the `value`, then the content\n * of the `other` key is returned when present, otherwise an empty string is returned.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/i18n_pipe.ts region='I18nSelectPipeComponent'}\n *\n * @publicApi\n */\nvar I18nSelectPipe = /** @class */ (function () {\n function I18nSelectPipe() {\n }\n I18nSelectPipe_1 = I18nSelectPipe;\n /**\n * @param value a string to be internationalized.\n * @param mapping an object that indicates the text that should be displayed\n * for different values of the provided `value`.\n */\n I18nSelectPipe.prototype.transform = function (value, mapping) {\n if (value == null)\n return '';\n if (typeof mapping !== 'object' || typeof value !== 'string') {\n throw invalidPipeArgumentError(I18nSelectPipe_1, mapping);\n }\n if (mapping.hasOwnProperty(value)) {\n return mapping[value];\n }\n if (mapping.hasOwnProperty('other')) {\n return mapping['other'];\n }\n return '';\n };\n var I18nSelectPipe_1;\n I18nSelectPipe = I18nSelectPipe_1 = __decorate([\n Pipe({ name: 'i18nSelect', pure: true })\n ], I18nSelectPipe);\n return I18nSelectPipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Converts a value into its JSON-format representation. Useful for debugging.\n *\n * @usageNotes\n *\n * The following component uses a JSON pipe to convert an object\n * to JSON format, and displays the string in both formats for comparison.\n *\n * {@example common/pipes/ts/json_pipe.ts region='JsonPipe'}\n *\n * @publicApi\n */\nvar JsonPipe = /** @class */ (function () {\n function JsonPipe() {\n }\n /**\n * @param value A value of any type to convert into a JSON-format string.\n */\n JsonPipe.prototype.transform = function (value) { return JSON.stringify(value, null, 2); };\n JsonPipe = __decorate([\n Pipe({ name: 'json', pure: false })\n ], JsonPipe);\n return JsonPipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction makeKeyValuePair(key, value) {\n return { key: key, value: value };\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms Object or Map into an array of key value pairs.\n *\n * The output array will be ordered by keys.\n * By default the comparator will be by Unicode point value.\n * You can optionally pass a compareFn if your keys are complex types.\n *\n * @usageNotes\n * ### Examples\n *\n * This examples show how an Object or a Map can be iterated by ngFor with the use of this keyvalue\n * pipe.\n *\n * {@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}\n *\n * @publicApi\n */\nvar KeyValuePipe = /** @class */ (function () {\n function KeyValuePipe(differs) {\n this.differs = differs;\n this.keyValues = [];\n }\n KeyValuePipe.prototype.transform = function (input, compareFn) {\n var _this = this;\n if (compareFn === void 0) { compareFn = defaultComparator; }\n if (!input || (!(input instanceof Map) && typeof input !== 'object')) {\n return null;\n }\n if (!this.differ) {\n // make a differ for whatever type we've been passed in\n this.differ = this.differs.find(input).create();\n }\n var differChanges = this.differ.diff(input);\n if (differChanges) {\n this.keyValues = [];\n differChanges.forEachItem(function (r) {\n _this.keyValues.push(makeKeyValuePair(r.key, r.currentValue));\n });\n this.keyValues.sort(compareFn);\n }\n return this.keyValues;\n };\n KeyValuePipe = __decorate([\n Pipe({ name: 'keyvalue', pure: false }),\n __metadata(\"design:paramtypes\", [KeyValueDiffers])\n ], KeyValuePipe);\n return KeyValuePipe;\n}());\nfunction defaultComparator(keyValueA, keyValueB) {\n var a = keyValueA.key;\n var b = keyValueB.key;\n // if same exit with 0;\n if (a === b)\n return 0;\n // make sure that undefined are at the end of the sort.\n if (a === undefined)\n return 1;\n if (b === undefined)\n return -1;\n // make sure that nulls are at the end of the sort.\n if (a === null)\n return 1;\n if (b === null)\n return -1;\n if (typeof a == 'string' && typeof b == 'string') {\n return a < b ? -1 : 1;\n }\n if (typeof a == 'number' && typeof b == 'number') {\n return a - b;\n }\n if (typeof a == 'boolean' && typeof b == 'boolean') {\n return a < b ? -1 : 1;\n }\n // `a` and `b` are of different types. Compare their string values.\n var aString = String(a);\n var bString = String(b);\n return aString == bString ? 0 : aString < bString ? -1 : 1;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number into a string,\n * formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * If no parameters are specified, the function rounds off to the nearest value using this\n * [rounding method](https://en.wikibooks.org/wiki/Arithmetic/Rounding).\n * The behavior differs from that of the JavaScript ```Math.round()``` function.\n * In the following case for example, the pipe rounds down where\n * ```Math.round()``` rounds up:\n *\n * ```html\n * -2.5 | number:'1.0-0'\n * > -3\n * Math.round(-2.5)\n * > -2\n * ```\n *\n * @see `formatNumber()`\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * ### Example\n *\n * \n *\n * @publicApi\n */\nvar DecimalPipe = /** @class */ (function () {\n function DecimalPipe(_locale) {\n this._locale = _locale;\n }\n DecimalPipe_1 = DecimalPipe;\n /**\n * @param value The number to be formatted.\n * @param digitsInfo Decimal representation options, specified by a string\n * in the following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}.\n * - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n * Default is `1`.\n * - `minFractionDigits`: The minimum number of digits after the decimal point.\n * Default is `0`.\n * - `maxFractionDigits`: The maximum number of digits after the decimal point.\n * Default is `3`.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n */\n DecimalPipe.prototype.transform = function (value, digitsInfo, locale) {\n if (isEmpty(value))\n return null;\n locale = locale || this._locale;\n try {\n var num = strToNumber(value);\n return formatNumber(num, locale, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(DecimalPipe_1, error.message);\n }\n };\n var DecimalPipe_1;\n DecimalPipe = DecimalPipe_1 = __decorate([\n Pipe({ name: 'number' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], DecimalPipe);\n return DecimalPipe;\n}());\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a percentage\n * string, formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * @see `formatPercent()`\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * \n *\n * @publicApi\n */\nvar PercentPipe = /** @class */ (function () {\n function PercentPipe(_locale) {\n this._locale = _locale;\n }\n PercentPipe_1 = PercentPipe;\n /**\n *\n * @param value The number to be formatted as a percentage.\n * @param digitsInfo Decimal representation options, specified by a string\n * in the following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}.\n * - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n * Default is `1`.\n * - `minFractionDigits`: The minimum number of digits after the decimal point.\n * Default is `0`.\n * - `maxFractionDigits`: The maximum number of digits after the decimal point.\n * Default is `0`.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n */\n PercentPipe.prototype.transform = function (value, digitsInfo, locale) {\n if (isEmpty(value))\n return null;\n locale = locale || this._locale;\n try {\n var num = strToNumber(value);\n return formatPercent(num, locale, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(PercentPipe_1, error.message);\n }\n };\n var PercentPipe_1;\n PercentPipe = PercentPipe_1 = __decorate([\n Pipe({ name: 'percent' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], PercentPipe);\n return PercentPipe;\n}());\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a currency string, formatted according to locale rules\n * that determine group sizing and separator, decimal-point character,\n * and other locale-specific configurations.\n *\n * @see `getCurrencySymbol()`\n * @see `formatCurrency()`\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * \n *\n * @publicApi\n */\nvar CurrencyPipe = /** @class */ (function () {\n function CurrencyPipe(_locale) {\n this._locale = _locale;\n }\n CurrencyPipe_1 = CurrencyPipe;\n /**\n *\n * @param value The number to be formatted as currency.\n * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) currency code,\n * such as `USD` for the US dollar and `EUR` for the euro.\n * @param display The format for the currency indicator. One of the following:\n * - `code`: Show the code (such as `USD`).\n * - `symbol`(default): Show the symbol (such as `$`).\n * - `symbol-narrow`: Use the narrow symbol for locales that have two symbols for their\n * currency.\n * For example, the Canadian dollar CAD has the symbol `CA$` and the symbol-narrow `$`. If the\n * locale has no narrow symbol, uses the standard symbol for the locale.\n * - String: Use the given string value instead of a code or a symbol.\n * For example, an empty string will suppress the currency & symbol.\n * - Boolean (marked deprecated in v5): `true` for symbol and false for `code`.\n *\n * @param digitsInfo Decimal representation options, specified by a string\n * in the following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}.\n * - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n * Default is `1`.\n * - `minFractionDigits`: The minimum number of digits after the decimal point.\n * Default is `2`.\n * - `maxFractionDigits`: The maximum number of digits after the decimal point.\n * Default is `2`.\n * If not provided, the number will be formatted with the proper amount of digits,\n * depending on what the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) specifies.\n * For example, the Canadian dollar has 2 digits, whereas the Chilean peso has none.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n */\n CurrencyPipe.prototype.transform = function (value, currencyCode, display, digitsInfo, locale) {\n if (display === void 0) { display = 'symbol'; }\n if (isEmpty(value))\n return null;\n locale = locale || this._locale;\n if (typeof display === 'boolean') {\n if (console && console.warn) {\n console.warn(\"Warning: the currency pipe has been changed in Angular v5. The symbolDisplay option (third parameter) is now a string instead of a boolean. The accepted values are \\\"code\\\", \\\"symbol\\\" or \\\"symbol-narrow\\\".\");\n }\n display = display ? 'symbol' : 'code';\n }\n var currency = currencyCode || 'USD';\n if (display !== 'code') {\n if (display === 'symbol' || display === 'symbol-narrow') {\n currency = getCurrencySymbol(currency, display === 'symbol' ? 'wide' : 'narrow', locale);\n }\n else {\n currency = display;\n }\n }\n try {\n var num = strToNumber(value);\n return formatCurrency(num, locale, currency, currencyCode, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(CurrencyPipe_1, error.message);\n }\n };\n var CurrencyPipe_1;\n CurrencyPipe = CurrencyPipe_1 = __decorate([\n Pipe({ name: 'currency' }),\n __param(0, Inject(LOCALE_ID)),\n __metadata(\"design:paramtypes\", [String])\n ], CurrencyPipe);\n return CurrencyPipe;\n}());\nfunction isEmpty(value) {\n return value == null || value === '' || value !== value;\n}\n/**\n * Transforms a string into a number (if needed).\n */\nfunction strToNumber(value) {\n // Convert strings to numbers\n if (typeof value === 'string' && !isNaN(Number(value) - parseFloat(value))) {\n return Number(value);\n }\n if (typeof value !== 'number') {\n throw new Error(value + \" is not a number\");\n }\n return value;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Creates a new `Array` or `String` containing a subset (slice) of the elements.\n *\n * @usageNotes\n *\n * All behavior is based on the expected behavior of the JavaScript API `Array.prototype.slice()`\n * and `String.prototype.slice()`.\n *\n * When operating on an `Array`, the returned `Array` is always a copy even when all\n * the elements are being returned.\n *\n * When operating on a blank value, the pipe returns the blank value.\n *\n * ### List Example\n *\n * This `ngFor` example:\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_list'}\n *\n * produces the following:\n *\n * ```html\n *

\n *

\n * ```\n *\n * ### String Examples\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_string'}\n *\n * @publicApi\n */\nvar SlicePipe = /** @class */ (function () {\n function SlicePipe() {\n }\n SlicePipe_1 = SlicePipe;\n /**\n * @param value a list or a string to be sliced.\n * @param start the starting index of the subset to return:\n * - **a positive integer**: return the item at `start` index and all items after\n * in the list or string expression.\n * - **a negative integer**: return the item at `start` index from the end and all items after\n * in the list or string expression.\n * - **if positive and greater than the size of the expression**: return an empty list or\n * string.\n * - **if negative and greater than the size of the expression**: return entire list or string.\n * @param end the ending index of the subset to return:\n * - **omitted**: return all items until the end.\n * - **if positive**: return all items before `end` index of the list or string.\n * - **if negative**: return all items before `end` index from the end of the list or string.\n */\n SlicePipe.prototype.transform = function (value, start, end) {\n if (value == null)\n return value;\n if (!this.supports(value)) {\n throw invalidPipeArgumentError(SlicePipe_1, value);\n }\n return value.slice(start, end);\n };\n SlicePipe.prototype.supports = function (obj) { return typeof obj === 'string' || Array.isArray(obj); };\n var SlicePipe_1;\n SlicePipe = SlicePipe_1 = __decorate([\n Pipe({ name: 'slice', pure: false })\n ], SlicePipe);\n return SlicePipe;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A collection of Angular pipes that are likely to be used in each and every application.\n */\nvar COMMON_PIPES = [\n AsyncPipe,\n UpperCasePipe,\n LowerCasePipe,\n JsonPipe,\n SlicePipe,\n DecimalPipe,\n PercentPipe,\n TitleCasePipe,\n CurrencyPipe,\n DatePipe,\n I18nPluralPipe,\n I18nSelectPipe,\n KeyValuePipe,\n];\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Note: This does not contain the location providers,\n// as they need some platform specific implementations to work.\n/**\n * Exports all the basic Angular directives and pipes,\n * such as `NgIf`, `NgForOf`, `DecimalPipe`, and so on.\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command.\n *\n * * The `providers` options configure the NgModule's injector to provide\n * localization dependencies to members.\n * * The `exports` options make the declared directives and pipes available for import\n * by other NgModules.\n *\n * @publicApi\n */\nvar CommonModule = /** @class */ (function () {\n function CommonModule() {\n }\n CommonModule = __decorate([\n NgModule({\n declarations: [COMMON_DIRECTIVES, COMMON_PIPES],\n exports: [COMMON_DIRECTIVES, COMMON_PIPES],\n providers: [\n { provide: NgLocalization, useClass: NgLocaleLocalization },\n ],\n })\n ], CommonModule);\n return CommonModule;\n}());\nvar ɵ0 = getPluralCase;\n/**\n * A module that contains the deprecated i18n pipes.\n *\n * @deprecated from v5\n * @publicApi\n */\nvar DeprecatedI18NPipesModule = /** @class */ (function () {\n function DeprecatedI18NPipesModule() {\n }\n DeprecatedI18NPipesModule = __decorate([\n NgModule({\n declarations: [COMMON_DEPRECATED_I18N_PIPES],\n exports: [COMMON_DEPRECATED_I18N_PIPES],\n providers: [{ provide: DEPRECATED_PLURAL_FN, useValue: ɵ0 }],\n })\n ], DeprecatedI18NPipesModule);\n return DeprecatedI18NPipesModule;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A DI Token representing the main rendering context. In a browser this is the DOM Document.\n *\n * Note: Document might not be available in the Application Context when Application and Rendering\n * Contexts are not the same (e.g. when running the application into a Web Worker).\n *\n * @publicApi\n */\nvar DOCUMENT = new InjectionToken('DocumentToken');\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar PLATFORM_BROWSER_ID = 'browser';\nvar PLATFORM_SERVER_ID = 'server';\nvar PLATFORM_WORKER_APP_ID = 'browserWorkerApp';\nvar PLATFORM_WORKER_UI_ID = 'browserWorkerUi';\n/**\n * Returns whether a platform id represents a browser platform.\n * @publicApi\n */\nfunction isPlatformBrowser(platformId) {\n return platformId === PLATFORM_BROWSER_ID;\n}\n/**\n * Returns whether a platform id represents a server platform.\n * @publicApi\n */\nfunction isPlatformServer(platformId) {\n return platformId === PLATFORM_SERVER_ID;\n}\n/**\n * Returns whether a platform id represents a web worker app platform.\n * @publicApi\n */\nfunction isPlatformWorkerApp(platformId) {\n return platformId === PLATFORM_WORKER_APP_ID;\n}\n/**\n * Returns whether a platform id represents a web worker UI platform.\n * @publicApi\n */\nfunction isPlatformWorkerUi(platformId) {\n return platformId === PLATFORM_WORKER_UI_ID;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nvar VERSION = new Version('7.2.15');\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Defines a scroll position manager. Implemented by `BrowserViewportScroller`.\n *\n * @publicApi\n */\nvar ViewportScroller = /** @class */ (function () {\n function ViewportScroller() {\n }\n // De-sugared tree-shakable injection\n // See #23917\n /** @nocollapse */\n ViewportScroller.ngInjectableDef = defineInjectable({\n providedIn: 'root',\n factory: function () { return new BrowserViewportScroller(inject(DOCUMENT), window, inject(ErrorHandler)); }\n });\n return ViewportScroller;\n}());\n/**\n * Manages the scroll position for a browser window.\n */\nvar BrowserViewportScroller = /** @class */ (function () {\n function BrowserViewportScroller(document, window, errorHandler) {\n this.document = document;\n this.window = window;\n this.errorHandler = errorHandler;\n this.offset = function () { return [0, 0]; };\n }\n /**\n * Configures the top offset used when scrolling to an anchor.\n * @param offset A position in screen coordinates (a tuple with x and y values)\n * or a function that returns the top offset position.\n *\n */\n BrowserViewportScroller.prototype.setOffset = function (offset) {\n if (Array.isArray(offset)) {\n this.offset = function () { return offset; };\n }\n else {\n this.offset = offset;\n }\n };\n /**\n * Retrieves the current scroll position.\n * @returns The position in screen coordinates.\n */\n BrowserViewportScroller.prototype.getScrollPosition = function () {\n if (this.supportScrollRestoration()) {\n return [this.window.scrollX, this.window.scrollY];\n }\n else {\n return [0, 0];\n }\n };\n /**\n * Sets the scroll position.\n * @param position The new position in screen coordinates.\n */\n BrowserViewportScroller.prototype.scrollToPosition = function (position) {\n if (this.supportScrollRestoration()) {\n this.window.scrollTo(position[0], position[1]);\n }\n };\n /**\n * Scrolls to an anchor element.\n * @param anchor The ID of the anchor element.\n */\n BrowserViewportScroller.prototype.scrollToAnchor = function (anchor) {\n if (this.supportScrollRestoration()) {\n // Escape anything passed to `querySelector` as it can throw errors and stop the application\n // from working if invalid values are passed.\n if (this.window.CSS && this.window.CSS.escape) {\n anchor = this.window.CSS.escape(anchor);\n }\n else {\n anchor = anchor.replace(/(\\\"|\\'\\ |:|\\.|\\[|\\]|,|=)/g, '\\\\$1');\n }\n try {\n var elSelectedById = this.document.querySelector(\"#\" + anchor);\n if (elSelectedById) {\n this.scrollToElement(elSelectedById);\n return;\n }\n var elSelectedByName = this.document.querySelector(\"[name='\" + anchor + \"']\");\n if (elSelectedByName) {\n this.scrollToElement(elSelectedByName);\n return;\n }\n }\n catch (e) {\n this.errorHandler.handleError(e);\n }\n }\n };\n /**\n * Disables automatic scroll restoration provided by the browser.\n */\n BrowserViewportScroller.prototype.setHistoryScrollRestoration = function (scrollRestoration) {\n if (this.supportScrollRestoration()) {\n var history_1 = this.window.history;\n if (history_1 && history_1.scrollRestoration) {\n history_1.scrollRestoration = scrollRestoration;\n }\n }\n };\n BrowserViewportScroller.prototype.scrollToElement = function (el) {\n var rect = el.getBoundingClientRect();\n var left = rect.left + this.window.pageXOffset;\n var top = rect.top + this.window.pageYOffset;\n var offset = this.offset();\n this.window.scrollTo(left - offset[0], top - offset[1]);\n };\n /**\n * We only support scroll restoration when we can get a hold of window.\n * This means that we do not support this behavior when running in a web worker.\n *\n * Lifting this restriction right now would require more changes in the dom adapter.\n * Since webworkers aren't widely used, we will lift it once RouterScroller is\n * battle-tested.\n */\n BrowserViewportScroller.prototype.supportScrollRestoration = function () {\n try {\n return !!this.window && !!this.window.scrollTo;\n }\n catch (_a) {\n return false;\n }\n };\n return BrowserViewportScroller;\n}());\n/**\n * Provides an empty implementation of the viewport scroller. This will\n * live in @angular/common as it will be used by both platform-server and platform-webworker.\n */\nvar NullViewportScroller = /** @class */ (function () {\n function NullViewportScroller() {\n }\n /**\n * Empty implementation\n */\n NullViewportScroller.prototype.setOffset = function (offset) { };\n /**\n * Empty implementation\n */\n NullViewportScroller.prototype.getScrollPosition = function () { return [0, 0]; };\n /**\n * Empty implementation\n */\n NullViewportScroller.prototype.scrollToPosition = function (position) { };\n /**\n * Empty implementation\n */\n NullViewportScroller.prototype.scrollToAnchor = function (anchor) { };\n /**\n * Empty implementation\n */\n NullViewportScroller.prototype.setHistoryScrollRestoration = function (scrollRestoration) { };\n return NullViewportScroller;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { COMMON_DIRECTIVES as ɵangular_packages_common_common_e, findLocaleData as ɵangular_packages_common_common_d, DEPRECATED_PLURAL_FN as ɵangular_packages_common_common_a, getPluralCase as ɵangular_packages_common_common_b, COMMON_DEPRECATED_I18N_PIPES as ɵangular_packages_common_common_g, COMMON_PIPES as ɵangular_packages_common_common_f, registerLocaleData as ɵregisterLocaleData, registerLocaleData, formatDate, formatCurrency, formatNumber, formatPercent, NgLocaleLocalization, NgLocalization, Plural, NumberFormatStyle, FormStyle, TranslationWidth, FormatWidth, NumberSymbol, WeekDay, getNumberOfCurrencyDigits, getCurrencySymbol, getLocaleDayPeriods, getLocaleDayNames, getLocaleMonthNames, getLocaleId, getLocaleEraNames, getLocaleWeekEndRange, getLocaleFirstDayOfWeek, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocalePluralCase, getLocaleTimeFormat, getLocaleNumberSymbol, getLocaleNumberFormat, getLocaleCurrencyName, getLocaleCurrencySymbol, parseCookieValue as ɵparseCookieValue, CommonModule, DeprecatedI18NPipesModule, NgClass, NgForOf, NgForOfContext, NgIf, NgIfContext, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NgComponentOutlet, DOCUMENT, AsyncPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, JsonPipe, LowerCasePipe, CurrencyPipe, DecimalPipe, PercentPipe, SlicePipe, UpperCasePipe, TitleCasePipe, KeyValuePipe, DeprecatedDatePipe, DeprecatedCurrencyPipe, DeprecatedDecimalPipe, DeprecatedPercentPipe, PLATFORM_BROWSER_ID as ɵPLATFORM_BROWSER_ID, PLATFORM_SERVER_ID as ɵPLATFORM_SERVER_ID, PLATFORM_WORKER_APP_ID as ɵPLATFORM_WORKER_APP_ID, PLATFORM_WORKER_UI_ID as ɵPLATFORM_WORKER_UI_ID, isPlatformBrowser, isPlatformServer, isPlatformWorkerApp, isPlatformWorkerUi, VERSION, ViewportScroller, NullViewportScroller as ɵNullViewportScroller, PlatformLocation, LOCATION_INITIALIZED, LocationStrategy, APP_BASE_HREF, HashLocationStrategy, PathLocationStrategy, Location };\n//# sourceMappingURL=common.js.map\n","/**\n * @license Angular v7.2.15\n * (c) 2010-2019 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { __spread, __read, __extends, __decorate, __metadata, __param } from 'tslib';\nimport { Injectable, InjectionToken, Inject, PLATFORM_ID, Injector, NgModule } from '@angular/core';\nimport { of, Observable } from 'rxjs';\nimport { concatMap, filter, map } from 'rxjs/operators';\nimport { DOCUMENT, ɵparseCookieValue } from '@angular/common';\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a\n * `HttpResponse`.\n *\n * `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the\n * first interceptor in the chain, which dispatches to the second, etc, eventually reaching the\n * `HttpBackend`.\n *\n * In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.\n *\n * @publicApi\n */\nvar HttpHandler = /** @class */ (function () {\n function HttpHandler() {\n }\n return HttpHandler;\n}());\n/**\n * A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.\n *\n * Interceptors sit between the `HttpClient` interface and the `HttpBackend`.\n *\n * When injected, `HttpBackend` dispatches requests directly to the backend, without going\n * through the interceptor chain.\n *\n * @publicApi\n */\nvar HttpBackend = /** @class */ (function () {\n function HttpBackend() {\n }\n return HttpBackend;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * `HttpHeaders` class represents the header configuration options for an HTTP request.\n * Instances should be assumed immutable with lazy parsing.\n *\n * @publicApi\n */\nvar HttpHeaders = /** @class */ (function () {\n /** Constructs a new HTTP header object with the given values.*/\n function HttpHeaders(headers) {\n var _this = this;\n /**\n * Internal map of lowercased header names to the normalized\n * form of the name (the form seen first).\n */\n this.normalizedNames = new Map();\n /**\n * Queued updates to be materialized the next initialization.\n */\n this.lazyUpdate = null;\n if (!headers) {\n this.headers = new Map();\n }\n else if (typeof headers === 'string') {\n this.lazyInit = function () {\n _this.headers = new Map();\n headers.split('\\n').forEach(function (line) {\n var index = line.indexOf(':');\n if (index > 0) {\n var name_1 = line.slice(0, index);\n var key = name_1.toLowerCase();\n var value = line.slice(index + 1).trim();\n _this.maybeSetNormalizedName(name_1, key);\n if (_this.headers.has(key)) {\n _this.headers.get(key).push(value);\n }\n else {\n _this.headers.set(key, [value]);\n }\n }\n });\n };\n }\n else {\n this.lazyInit = function () {\n _this.headers = new Map();\n Object.keys(headers).forEach(function (name) {\n var values = headers[name];\n var key = name.toLowerCase();\n if (typeof values === 'string') {\n values = [values];\n }\n if (values.length > 0) {\n _this.headers.set(key, values);\n _this.maybeSetNormalizedName(name, key);\n }\n });\n };\n }\n }\n /**\n * Checks for existence of a header by a given name.\n *\n * @param name The header name to check for existence.\n *\n * @returns Whether the header exits.\n */\n HttpHeaders.prototype.has = function (name) {\n this.init();\n return this.headers.has(name.toLowerCase());\n };\n /**\n * Returns the first header value that matches a given name.\n *\n * @param name The header name to retrieve.\n *\n * @returns A string if the header exists, null otherwise\n */\n HttpHeaders.prototype.get = function (name) {\n this.init();\n var values = this.headers.get(name.toLowerCase());\n return values && values.length > 0 ? values[0] : null;\n };\n /**\n * Returns the names of the headers.\n *\n * @returns A list of header names.\n */\n HttpHeaders.prototype.keys = function () {\n this.init();\n return Array.from(this.normalizedNames.values());\n };\n /**\n * Returns a list of header values for a given header name.\n *\n * @param name The header name from which to retrieve the values.\n *\n * @returns A string of values if the header exists, null otherwise.\n */\n HttpHeaders.prototype.getAll = function (name) {\n this.init();\n return this.headers.get(name.toLowerCase()) || null;\n };\n /**\n * Appends a new header value to the existing set of\n * header values.\n *\n * @param name The header name for which to append the values.\n *\n * @returns A clone of the HTTP header object with the value appended.\n */\n HttpHeaders.prototype.append = function (name, value) {\n return this.clone({ name: name, value: value, op: 'a' });\n };\n /**\n * Sets a header value for a given name. If the header name already exists,\n * its value is replaced with the given value.\n *\n * @param name The header name.\n * @param value Provides the value to set or overide for a given name.\n *\n * @returns A clone of the HTTP header object with the newly set header value.\n */\n HttpHeaders.prototype.set = function (name, value) {\n return this.clone({ name: name, value: value, op: 's' });\n };\n /**\n * Deletes all header values for a given name.\n *\n * @param name The header name.\n * @param value The header values to delete for a given name.\n *\n * @returns A clone of the HTTP header object.\n */\n HttpHeaders.prototype.delete = function (name, value) {\n return this.clone({ name: name, value: value, op: 'd' });\n };\n HttpHeaders.prototype.maybeSetNormalizedName = function (name, lcName) {\n if (!this.normalizedNames.has(lcName)) {\n this.normalizedNames.set(lcName, name);\n }\n };\n HttpHeaders.prototype.init = function () {\n var _this = this;\n if (!!this.lazyInit) {\n if (this.lazyInit instanceof HttpHeaders) {\n this.copyFrom(this.lazyInit);\n }\n else {\n this.lazyInit();\n }\n this.lazyInit = null;\n if (!!this.lazyUpdate) {\n this.lazyUpdate.forEach(function (update) { return _this.applyUpdate(update); });\n this.lazyUpdate = null;\n }\n }\n };\n HttpHeaders.prototype.copyFrom = function (other) {\n var _this = this;\n other.init();\n Array.from(other.headers.keys()).forEach(function (key) {\n _this.headers.set(key, other.headers.get(key));\n _this.normalizedNames.set(key, other.normalizedNames.get(key));\n });\n };\n HttpHeaders.prototype.clone = function (update) {\n var clone = new HttpHeaders();\n clone.lazyInit =\n (!!this.lazyInit && this.lazyInit instanceof HttpHeaders) ? this.lazyInit : this;\n clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);\n return clone;\n };\n HttpHeaders.prototype.applyUpdate = function (update) {\n var key = update.name.toLowerCase();\n switch (update.op) {\n case 'a':\n case 's':\n var value = update.value;\n if (typeof value === 'string') {\n value = [value];\n }\n if (value.length === 0) {\n return;\n }\n this.maybeSetNormalizedName(update.name, key);\n var base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];\n base.push.apply(base, __spread(value));\n this.headers.set(key, base);\n break;\n case 'd':\n var toDelete_1 = update.value;\n if (!toDelete_1) {\n this.headers.delete(key);\n this.normalizedNames.delete(key);\n }\n else {\n var existing = this.headers.get(key);\n if (!existing) {\n return;\n }\n existing = existing.filter(function (value) { return toDelete_1.indexOf(value) === -1; });\n if (existing.length === 0) {\n this.headers.delete(key);\n this.normalizedNames.delete(key);\n }\n else {\n this.headers.set(key, existing);\n }\n }\n break;\n }\n };\n /**\n * @internal\n */\n HttpHeaders.prototype.forEach = function (fn) {\n var _this = this;\n this.init();\n Array.from(this.normalizedNames.keys())\n .forEach(function (key) { return fn(_this.normalizedNames.get(key), _this.headers.get(key)); });\n };\n return HttpHeaders;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A class that uses `encodeURIComponent` and `decodeURIComponent` to\n * serialize and parse URL parameter keys and values. If you pass URL query parameters\n * without encoding, the query parameters can get misinterpreted at the receiving end.\n * Use the `HttpParameterCodec` class to encode and decode the query-string values.\n *\n * @publicApi\n */\nvar HttpUrlEncodingCodec = /** @class */ (function () {\n function HttpUrlEncodingCodec() {\n }\n HttpUrlEncodingCodec.prototype.encodeKey = function (key) { return standardEncoding(key); };\n HttpUrlEncodingCodec.prototype.encodeValue = function (value) { return standardEncoding(value); };\n HttpUrlEncodingCodec.prototype.decodeKey = function (key) { return decodeURIComponent(key); };\n HttpUrlEncodingCodec.prototype.decodeValue = function (value) { return decodeURIComponent(value); };\n return HttpUrlEncodingCodec;\n}());\nfunction paramParser(rawParams, codec) {\n var map$$1 = new Map();\n if (rawParams.length > 0) {\n var params = rawParams.split('&');\n params.forEach(function (param) {\n var eqIdx = param.indexOf('=');\n var _a = __read(eqIdx == -1 ?\n [codec.decodeKey(param), ''] :\n [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))], 2), key = _a[0], val = _a[1];\n var list = map$$1.get(key) || [];\n list.push(val);\n map$$1.set(key, list);\n });\n }\n return map$$1;\n}\nfunction standardEncoding(v) {\n return encodeURIComponent(v)\n .replace(/%40/gi, '@')\n .replace(/%3A/gi, ':')\n .replace(/%24/gi, '$')\n .replace(/%2C/gi, ',')\n .replace(/%3B/gi, ';')\n .replace(/%2B/gi, '+')\n .replace(/%3D/gi, '=')\n .replace(/%3F/gi, '?')\n .replace(/%2F/gi, '/');\n}\n/**\n * An HTTP request/response body that represents serialized parameters,\n * per the MIME type `application/x-www-form-urlencoded`.\n *\n * This class is immutable - all mutation operations return a new instance.\n *\n * @publicApi\n */\nvar HttpParams = /** @class */ (function () {\n function HttpParams(options) {\n if (options === void 0) { options = {}; }\n var _this = this;\n this.updates = null;\n this.cloneFrom = null;\n this.encoder = options.encoder || new HttpUrlEncodingCodec();\n if (!!options.fromString) {\n if (!!options.fromObject) {\n throw new Error(\"Cannot specify both fromString and fromObject.\");\n }\n this.map = paramParser(options.fromString, this.encoder);\n }\n else if (!!options.fromObject) {\n this.map = new Map();\n Object.keys(options.fromObject).forEach(function (key) {\n var value = options.fromObject[key];\n _this.map.set(key, Array.isArray(value) ? value : [value]);\n });\n }\n else {\n this.map = null;\n }\n }\n /**\n * Check whether the body has one or more values for the given parameter name.\n */\n HttpParams.prototype.has = function (param) {\n this.init();\n return this.map.has(param);\n };\n /**\n * Get the first value for the given parameter name, or `null` if it's not present.\n */\n HttpParams.prototype.get = function (param) {\n this.init();\n var res = this.map.get(param);\n return !!res ? res[0] : null;\n };\n /**\n * Get all values for the given parameter name, or `null` if it's not present.\n */\n HttpParams.prototype.getAll = function (param) {\n this.init();\n return this.map.get(param) || null;\n };\n /**\n * Get all the parameter names for this body.\n */\n HttpParams.prototype.keys = function () {\n this.init();\n return Array.from(this.map.keys());\n };\n /**\n * Construct a new body with an appended value for the given parameter name.\n */\n HttpParams.prototype.append = function (param, value) { return this.clone({ param: param, value: value, op: 'a' }); };\n /**\n * Construct a new body with a new value for the given parameter name.\n */\n HttpParams.prototype.set = function (param, value) { return this.clone({ param: param, value: value, op: 's' }); };\n /**\n * Construct a new body with either the given value for the given parameter\n * removed, if a value is given, or all values for the given parameter removed\n * if not.\n */\n HttpParams.prototype.delete = function (param, value) { return this.clone({ param: param, value: value, op: 'd' }); };\n /**\n * Serialize the body to an encoded string, where key-value pairs (separated by `=`) are\n * separated by `&`s.\n */\n HttpParams.prototype.toString = function () {\n var _this = this;\n this.init();\n return this.keys()\n .map(function (key) {\n var eKey = _this.encoder.encodeKey(key);\n return _this.map.get(key).map(function (value) { return eKey + '=' + _this.encoder.encodeValue(value); })\n .join('&');\n })\n .join('&');\n };\n HttpParams.prototype.clone = function (update) {\n var clone = new HttpParams({ encoder: this.encoder });\n clone.cloneFrom = this.cloneFrom || this;\n clone.updates = (this.updates || []).concat([update]);\n return clone;\n };\n HttpParams.prototype.init = function () {\n var _this = this;\n if (this.map === null) {\n this.map = new Map();\n }\n if (this.cloneFrom !== null) {\n this.cloneFrom.init();\n this.cloneFrom.keys().forEach(function (key) { return _this.map.set(key, _this.cloneFrom.map.get(key)); });\n this.updates.forEach(function (update) {\n switch (update.op) {\n case 'a':\n case 's':\n var base = (update.op === 'a' ? _this.map.get(update.param) : undefined) || [];\n base.push(update.value);\n _this.map.set(update.param, base);\n break;\n case 'd':\n if (update.value !== undefined) {\n var base_1 = _this.map.get(update.param) || [];\n var idx = base_1.indexOf(update.value);\n if (idx !== -1) {\n base_1.splice(idx, 1);\n }\n if (base_1.length > 0) {\n _this.map.set(update.param, base_1);\n }\n else {\n _this.map.delete(update.param);\n }\n }\n else {\n _this.map.delete(update.param);\n break;\n }\n }\n });\n this.cloneFrom = this.updates = null;\n }\n };\n return HttpParams;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Determine whether the given HTTP method may include a body.\n */\nfunction mightHaveBody(method) {\n switch (method) {\n case 'DELETE':\n case 'GET':\n case 'HEAD':\n case 'OPTIONS':\n case 'JSONP':\n return false;\n default:\n return true;\n }\n}\n/**\n * Safely assert whether the given value is an ArrayBuffer.\n *\n * In some execution environments ArrayBuffer is not defined.\n */\nfunction isArrayBuffer(value) {\n return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;\n}\n/**\n * Safely assert whether the given value is a Blob.\n *\n * In some execution environments Blob is not defined.\n */\nfunction isBlob(value) {\n return typeof Blob !== 'undefined' && value instanceof Blob;\n}\n/**\n * Safely assert whether the given value is a FormData instance.\n *\n * In some execution environments FormData is not defined.\n */\nfunction isFormData(value) {\n return typeof FormData !== 'undefined' && value instanceof FormData;\n}\n/**\n * An outgoing HTTP request with an optional typed body.\n *\n * `HttpRequest` represents an outgoing request, including URL, method,\n * headers, body, and other request configuration options. Instances should be\n * assumed to be immutable. To modify a `HttpRequest`, the `clone`\n * method should be used.\n *\n * @publicApi\n */\nvar HttpRequest = /** @class */ (function () {\n function HttpRequest(method, url, third, fourth) {\n this.url = url;\n /**\n * The request body, or `null` if one isn't set.\n *\n * Bodies are not enforced to be immutable, as they can include a reference to any\n * user-defined data type. However, interceptors should take care to preserve\n * idempotence by treating them as such.\n */\n this.body = null;\n /**\n * Whether this request should be made in a way that exposes progress events.\n *\n * Progress events are expensive (change detection runs on each event) and so\n * they should only be requested if the consumer intends to monitor them.\n */\n this.reportProgress = false;\n /**\n * Whether this request should be sent with outgoing credentials (cookies).\n */\n this.withCredentials = false;\n /**\n * The expected response type of the server.\n *\n * This is used to parse the response appropriately before returning it to\n * the requestee.\n */\n this.responseType = 'json';\n this.method = method.toUpperCase();\n // Next, need to figure out which argument holds the HttpRequestInit\n // options, if any.\n var options;\n // Check whether a body argument is expected. The only valid way to omit\n // the body argument is to use a known no-body method like GET.\n if (mightHaveBody(this.method) || !!fourth) {\n // Body is the third argument, options are the fourth.\n this.body = (third !== undefined) ? third : null;\n options = fourth;\n }\n else {\n // No body required, options are the third argument. The body stays null.\n options = third;\n }\n // If options have been passed, interpret them.\n if (options) {\n // Normalize reportProgress and withCredentials.\n this.reportProgress = !!options.reportProgress;\n this.withCredentials = !!options.withCredentials;\n // Override default response type of 'json' if one is provided.\n if (!!options.responseType) {\n this.responseType = options.responseType;\n }\n // Override headers if they're provided.\n if (!!options.headers) {\n this.headers = options.headers;\n }\n if (!!options.params) {\n this.params = options.params;\n }\n }\n // If no headers have been passed in, construct a new HttpHeaders instance.\n if (!this.headers) {\n this.headers = new HttpHeaders();\n }\n // If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.\n if (!this.params) {\n this.params = new HttpParams();\n this.urlWithParams = url;\n }\n else {\n // Encode the parameters to a string in preparation for inclusion in the URL.\n var params = this.params.toString();\n if (params.length === 0) {\n // No parameters, the visible URL is just the URL given at creation time.\n this.urlWithParams = url;\n }\n else {\n // Does the URL already have query parameters? Look for '?'.\n var qIdx = url.indexOf('?');\n // There are 3 cases to handle:\n // 1) No existing parameters -> append '?' followed by params.\n // 2) '?' exists and is followed by existing query string ->\n // append '&' followed by params.\n // 3) '?' exists at the end of the url -> append params directly.\n // This basically amounts to determining the character, if any, with\n // which to join the URL and parameters.\n var sep = qIdx === -1 ? '?' : (qIdx < url.length - 1 ? '&' : '');\n this.urlWithParams = url + sep + params;\n }\n }\n }\n /**\n * Transform the free-form body into a serialized format suitable for\n * transmission to the server.\n */\n HttpRequest.prototype.serializeBody = function () {\n // If no body is present, no need to serialize it.\n if (this.body === null) {\n return null;\n }\n // Check whether the body is already in a serialized form. If so,\n // it can just be returned directly.\n if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) ||\n typeof this.body === 'string') {\n return this.body;\n }\n // Check whether the body is an instance of HttpUrlEncodedParams.\n if (this.body instanceof HttpParams) {\n return this.body.toString();\n }\n // Check whether the body is an object or array, and serialize with JSON if so.\n if (typeof this.body === 'object' || typeof this.body === 'boolean' ||\n Array.isArray(this.body)) {\n return JSON.stringify(this.body);\n }\n // Fall back on toString() for everything else.\n return this.body.toString();\n };\n /**\n * Examine the body and attempt to infer an appropriate MIME type\n * for it.\n *\n * If no such type can be inferred, this method will return `null`.\n */\n HttpRequest.prototype.detectContentTypeHeader = function () {\n // An empty body has no content type.\n if (this.body === null) {\n return null;\n }\n // FormData bodies rely on the browser's content type assignment.\n if (isFormData(this.body)) {\n return null;\n }\n // Blobs usually have their own content type. If it doesn't, then\n // no type can be inferred.\n if (isBlob(this.body)) {\n return this.body.type || null;\n }\n // Array buffers have unknown contents and thus no type can be inferred.\n if (isArrayBuffer(this.body)) {\n return null;\n }\n // Technically, strings could be a form of JSON data, but it's safe enough\n // to assume they're plain strings.\n if (typeof this.body === 'string') {\n return 'text/plain';\n }\n // `HttpUrlEncodedParams` has its own content-type.\n if (this.body instanceof HttpParams) {\n return 'application/x-www-form-urlencoded;charset=UTF-8';\n }\n // Arrays, objects, and numbers will be encoded as JSON.\n if (typeof this.body === 'object' || typeof this.body === 'number' ||\n Array.isArray(this.body)) {\n return 'application/json';\n }\n // No type could be inferred.\n return null;\n };\n HttpRequest.prototype.clone = function (update) {\n if (update === void 0) { update = {}; }\n // For method, url, and responseType, take the current value unless\n // it is overridden in the update hash.\n var method = update.method || this.method;\n var url = update.url || this.url;\n var responseType = update.responseType || this.responseType;\n // The body is somewhat special - a `null` value in update.body means\n // whatever current body is present is being overridden with an empty\n // body, whereas an `undefined` value in update.body implies no\n // override.\n var body = (update.body !== undefined) ? update.body : this.body;\n // Carefully handle the boolean options to differentiate between\n // `false` and `undefined` in the update args.\n var withCredentials = (update.withCredentials !== undefined) ? update.withCredentials : this.withCredentials;\n var reportProgress = (update.reportProgress !== undefined) ? update.reportProgress : this.reportProgress;\n // Headers and params may be appended to if `setHeaders` or\n // `setParams` are used.\n var headers = update.headers || this.headers;\n var params = update.params || this.params;\n // Check whether the caller has asked to add headers.\n if (update.setHeaders !== undefined) {\n // Set every requested header.\n headers =\n Object.keys(update.setHeaders)\n .reduce(function (headers, name) { return headers.set(name, update.setHeaders[name]); }, headers);\n }\n // Check whether the caller has asked to set params.\n if (update.setParams) {\n // Set every requested param.\n params = Object.keys(update.setParams)\n .reduce(function (params, param) { return params.set(param, update.setParams[param]); }, params);\n }\n // Finally, construct the new HttpRequest using the pieces from above.\n return new HttpRequest(method, url, body, {\n params: params, headers: headers, reportProgress: reportProgress, responseType: responseType, withCredentials: withCredentials,\n });\n };\n return HttpRequest;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Type enumeration for the different kinds of `HttpEvent`.\n *\n * @publicApi\n */\nvar HttpEventType;\n(function (HttpEventType) {\n /**\n * The request was sent out over the wire.\n */\n HttpEventType[HttpEventType[\"Sent\"] = 0] = \"Sent\";\n /**\n * An upload progress event was received.\n */\n HttpEventType[HttpEventType[\"UploadProgress\"] = 1] = \"UploadProgress\";\n /**\n * The response status code and headers were received.\n */\n HttpEventType[HttpEventType[\"ResponseHeader\"] = 2] = \"ResponseHeader\";\n /**\n * A download progress event was received.\n */\n HttpEventType[HttpEventType[\"DownloadProgress\"] = 3] = \"DownloadProgress\";\n /**\n * The full response including the body was received.\n */\n HttpEventType[HttpEventType[\"Response\"] = 4] = \"Response\";\n /**\n * A custom event from an interceptor or a backend.\n */\n HttpEventType[HttpEventType[\"User\"] = 5] = \"User\";\n})(HttpEventType || (HttpEventType = {}));\n/**\n * Base class for both `HttpResponse` and `HttpHeaderResponse`.\n *\n * @publicApi\n */\nvar HttpResponseBase = /** @class */ (function () {\n /**\n * Super-constructor for all responses.\n *\n * The single parameter accepted is an initialization hash. Any properties\n * of the response passed there will override the default values.\n */\n function HttpResponseBase(init, defaultStatus, defaultStatusText) {\n if (defaultStatus === void 0) { defaultStatus = 200; }\n if (defaultStatusText === void 0) { defaultStatusText = 'OK'; }\n // If the hash has values passed, use them to initialize the response.\n // Otherwise use the default values.\n this.headers = init.headers || new HttpHeaders();\n this.status = init.status !== undefined ? init.status : defaultStatus;\n this.statusText = init.statusText || defaultStatusText;\n this.url = init.url || null;\n // Cache the ok value to avoid defining a getter.\n this.ok = this.status >= 200 && this.status < 300;\n }\n return HttpResponseBase;\n}());\n/**\n * A partial HTTP response which only includes the status and header data,\n * but no response body.\n *\n * `HttpHeaderResponse` is a `HttpEvent` available on the response\n * event stream, only when progress events are requested.\n *\n * @publicApi\n */\nvar HttpHeaderResponse = /** @class */ (function (_super) {\n __extends(HttpHeaderResponse, _super);\n /**\n * Create a new `HttpHeaderResponse` with the given parameters.\n */\n function HttpHeaderResponse(init) {\n if (init === void 0) { init = {}; }\n var _this = _super.call(this, init) || this;\n _this.type = HttpEventType.ResponseHeader;\n return _this;\n }\n /**\n * Copy this `HttpHeaderResponse`, overriding its contents with the\n * given parameter hash.\n */\n HttpHeaderResponse.prototype.clone = function (update) {\n if (update === void 0) { update = {}; }\n // Perform a straightforward initialization of the new HttpHeaderResponse,\n // overriding the current parameters with new ones if given.\n return new HttpHeaderResponse({\n headers: update.headers || this.headers,\n status: update.status !== undefined ? update.status : this.status,\n statusText: update.statusText || this.statusText,\n url: update.url || this.url || undefined,\n });\n };\n return HttpHeaderResponse;\n}(HttpResponseBase));\n/**\n * A full HTTP response, including a typed response body (which may be `null`\n * if one was not returned).\n *\n * `HttpResponse` is a `HttpEvent` available on the response event\n * stream.\n *\n * @publicApi\n */\nvar HttpResponse = /** @class */ (function (_super) {\n __extends(HttpResponse, _super);\n /**\n * Construct a new `HttpResponse`.\n */\n function HttpResponse(init) {\n if (init === void 0) { init = {}; }\n var _this = _super.call(this, init) || this;\n _this.type = HttpEventType.Response;\n _this.body = init.body !== undefined ? init.body : null;\n return _this;\n }\n HttpResponse.prototype.clone = function (update) {\n if (update === void 0) { update = {}; }\n return new HttpResponse({\n body: (update.body !== undefined) ? update.body : this.body,\n headers: update.headers || this.headers,\n status: (update.status !== undefined) ? update.status : this.status,\n statusText: update.statusText || this.statusText,\n url: update.url || this.url || undefined,\n });\n };\n return HttpResponse;\n}(HttpResponseBase));\n/**\n * A response that represents an error or failure, either from a\n * non-successful HTTP status, an error while executing the request,\n * or some other failure which occurred during the parsing of the response.\n *\n * Any error returned on the `Observable` response stream will be\n * wrapped in an `HttpErrorResponse` to provide additional context about\n * the state of the HTTP layer when the error occurred. The error property\n * will contain either a wrapped Error object or the error response returned\n * from the server.\n *\n * @publicApi\n */\nvar HttpErrorResponse = /** @class */ (function (_super) {\n __extends(HttpErrorResponse, _super);\n function HttpErrorResponse(init) {\n var _this = \n // Initialize with a default status of 0 / Unknown Error.\n _super.call(this, init, 0, 'Unknown Error') || this;\n _this.name = 'HttpErrorResponse';\n /**\n * Errors are never okay, even when the status code is in the 2xx success range.\n */\n _this.ok = false;\n // If the response was successful, then this was a parse error. Otherwise, it was\n // a protocol-level failure of some sort. Either the request failed in transit\n // or the server returned an unsuccessful status code.\n if (_this.status >= 200 && _this.status < 300) {\n _this.message = \"Http failure during parsing for \" + (init.url || '(unknown url)');\n }\n else {\n _this.message =\n \"Http failure response for \" + (init.url || '(unknown url)') + \": \" + init.status + \" \" + init.statusText;\n }\n _this.error = init.error || null;\n return _this;\n }\n return HttpErrorResponse;\n}(HttpResponseBase));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Constructs an instance of `HttpRequestOptions` from a source `HttpMethodOptions` and\n * the given `body`. This function clones the object and adds the body.\n */\nfunction addBody(options, body) {\n return {\n body: body,\n headers: options.headers,\n observe: options.observe,\n params: options.params,\n reportProgress: options.reportProgress,\n responseType: options.responseType,\n withCredentials: options.withCredentials,\n };\n}\n/**\n * Performs HTTP requests.\n *\n * `HttpClient` is available as an injectable class, with methods to perform HTTP requests.\n * Each request method has multiple signatures, and the return type varies based on\n * the signature that is called (mainly the values of `observe` and `responseType`).\n *\n *\n * @see [HTTP Guide](guide/http)\n *\n *\n * @usageNotes\n * Sample HTTP requests for the [Tour of Heroes](/tutorial/toh-pt0) application.\n *\n * ### HTTP Request Example\n *\n * ```\n * // GET heroes whose name contains search term\n * searchHeroes(term: string): observable{\n *\n * const params = new HttpParams({fromString: 'name=term'});\n * return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});\n * }\n * ```\n * ### JSONP Example\n * ```\n * requestJsonp(url, callback = 'callback') {\n * return this.httpClient.jsonp(this.heroesURL, callback);\n * }\n * ```\n *\n *\n * ### PATCH Example\n * ```\n * // PATCH one of the heroes' name\n * patchHero (id: number, heroName: string): Observable<{}> {\n * const url = `${this.heroesUrl}/${id}`; // PATCH api/heroes/42\n * return this.httpClient.patch(url, {name: heroName}, httpOptions)\n * .pipe(catchError(this.handleError('patchHero')));\n * }\n* ```\n *\n * @publicApi\n */\nvar HttpClient = /** @class */ (function () {\n function HttpClient(handler) {\n this.handler = handler;\n }\n /**\n * Constructs an observable for a generic HTTP request that, when subscribed,\n * fires the request through the chain of registered interceptors and on to the\n * server.\n *\n * You can pass an `HttpRequest` directly as the only parameter. In this case,\n * the call returns an observable of the raw `HttpEvent` stream.\n *\n * Alternatively you can pass an HTTP method as the first parameter,\n * a URL string as the second, and an options hash containing the request body as the third.\n * See `addBody()`. In this case, the specified `responseType` and `observe` options determine the\n * type of returned observable.\n * * The `responseType` value determines how a successful response body is parsed.\n * * If `responseType` is the default `json`, you can pass a type interface for the resulting\n * object as a type parameter to the call.\n *\n * The `observe` value determines the return type, according to what you are interested in\n * observing.\n * * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including\n * progress events by default.\n * * An `observe` value of response returns an observable of `HttpResponse`,\n * where the `T` parameter depends on the `responseType` and any optionally provided type\n * parameter.\n * * An `observe` value of body returns an observable of `` with the same `T` body type.\n *\n */\n HttpClient.prototype.request = function (first, url, options) {\n var _this = this;\n if (options === void 0) { options = {}; }\n var req;\n // First, check whether the primary argument is an instance of `HttpRequest`.\n if (first instanceof HttpRequest) {\n // It is. The other arguments must be undefined (per the signatures) and can be\n // ignored.\n req = first;\n }\n else {\n // It's a string, so it represents a URL. Construct a request based on it,\n // and incorporate the remaining arguments (assuming `GET` unless a method is\n // provided.\n // Figure out the headers.\n var headers = undefined;\n if (options.headers instanceof HttpHeaders) {\n headers = options.headers;\n }\n else {\n headers = new HttpHeaders(options.headers);\n }\n // Sort out parameters.\n var params = undefined;\n if (!!options.params) {\n if (options.params instanceof HttpParams) {\n params = options.params;\n }\n else {\n params = new HttpParams({ fromObject: options.params });\n }\n }\n // Construct the request.\n req = new HttpRequest(first, url, (options.body !== undefined ? options.body : null), {\n headers: headers,\n params: params,\n reportProgress: options.reportProgress,\n // By default, JSON is assumed to be returned for all calls.\n responseType: options.responseType || 'json',\n withCredentials: options.withCredentials,\n });\n }\n // Start with an Observable.of() the initial request, and run the handler (which\n // includes all interceptors) inside a concatMap(). This way, the handler runs\n // inside an Observable chain, which causes interceptors to be re-run on every\n // subscription (this also makes retries re-run the handler, including interceptors).\n var events$ = of(req).pipe(concatMap(function (req) { return _this.handler.handle(req); }));\n // If coming via the API signature which accepts a previously constructed HttpRequest,\n // the only option is to get the event stream. Otherwise, return the event stream if\n // that is what was requested.\n if (first instanceof HttpRequest || options.observe === 'events') {\n return events$;\n }\n // The requested stream contains either the full response or the body. In either\n // case, the first step is to filter the event stream to extract a stream of\n // responses(s).\n var res$ = events$.pipe(filter(function (event) { return event instanceof HttpResponse; }));\n // Decide which stream to return.\n switch (options.observe || 'body') {\n case 'body':\n // The requested stream is the body. Map the response stream to the response\n // body. This could be done more simply, but a misbehaving interceptor might\n // transform the response body into a different format and ignore the requested\n // responseType. Guard against this by validating that the response is of the\n // requested type.\n switch (req.responseType) {\n case 'arraybuffer':\n return res$.pipe(map(function (res) {\n // Validate that the body is an ArrayBuffer.\n if (res.body !== null && !(res.body instanceof ArrayBuffer)) {\n throw new Error('Response is not an ArrayBuffer.');\n }\n return res.body;\n }));\n case 'blob':\n return res$.pipe(map(function (res) {\n // Validate that the body is a Blob.\n if (res.body !== null && !(res.body instanceof Blob)) {\n throw new Error('Response is not a Blob.');\n }\n return res.body;\n }));\n case 'text':\n return res$.pipe(map(function (res) {\n // Validate that the body is a string.\n if (res.body !== null && typeof res.body !== 'string') {\n throw new Error('Response is not a string.');\n }\n return res.body;\n }));\n case 'json':\n default:\n // No validation needed for JSON responses, as they can be of any type.\n return res$.pipe(map(function (res) { return res.body; }));\n }\n case 'response':\n // The response stream was requested directly, so return it.\n return res$;\n default:\n // Guard against new future observe types being added.\n throw new Error(\"Unreachable: unhandled observe type \" + options.observe + \"}\");\n }\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `DELETE` request to execute on the server. See the individual overloads for\n * details on the return type.\n *\n * @param url The endpoint URL.\n * @param options The HTTP options to send with the request.\n *\n */\n HttpClient.prototype.delete = function (url, options) {\n if (options === void 0) { options = {}; }\n return this.request('DELETE', url, options);\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `GET` request to execute on the server. See the individual overloads for\n * details on the return type.\n */\n HttpClient.prototype.get = function (url, options) {\n if (options === void 0) { options = {}; }\n return this.request('GET', url, options);\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `HEAD` request to execute on the server. The `HEAD` method returns\n * meta information about the resource without transferring the\n * resource itself. See the individual overloads for\n * details on the return type.\n */\n HttpClient.prototype.head = function (url, options) {\n if (options === void 0) { options = {}; }\n return this.request('HEAD', url, options);\n };\n /**\n * Constructs an `Observable` that, when subscribed, causes a request with the special method\n * `JSONP` to be dispatched via the interceptor pipeline.\n * The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain\n * API endpoints that don't support newer,\n * and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.\n * JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the\n * requests even if the API endpoint is not located on the same domain (origin) as the client-side\n * application making the request.\n * The endpoint API must support JSONP callback for JSONP requests to work.\n * The resource API returns the JSON response wrapped in a callback function.\n * You can pass the callback function name as one of the query parameters.\n * Note that JSONP requests can only be used with `GET` requests.\n *\n * @param url The resource URL.\n * @param callbackParam The callback function name.\n *\n */\n HttpClient.prototype.jsonp = function (url, callbackParam) {\n return this.request('JSONP', url, {\n params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),\n observe: 'body',\n responseType: 'json',\n });\n };\n /**\n * Constructs an `Observable` that, when subscribed, causes the configured\n * `OPTIONS` request to execute on the server. This method allows the client\n * to determine the supported HTTP methods and other capabilites of an endpoint,\n * without implying a resource action. See the individual overloads for\n * details on the return type.\n */\n HttpClient.prototype.options = function (url, options) {\n if (options === void 0) { options = {}; }\n return this.request('OPTIONS', url, options);\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `PATCH` request to execute on the server. See the individual overloads for\n * details on the return type.\n */\n HttpClient.prototype.patch = function (url, body, options) {\n if (options === void 0) { options = {}; }\n return this.request('PATCH', url, addBody(options, body));\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `POST` request to execute on the server. The server responds with the location of\n * the replaced resource. See the individual overloads for\n * details on the return type.\n */\n HttpClient.prototype.post = function (url, body, options) {\n if (options === void 0) { options = {}; }\n return this.request('POST', url, addBody(options, body));\n };\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `PUT` request to execute on the server. The `PUT` method replaces an existing resource\n * with a new set of values.\n * See the individual overloads for details on the return type.\n */\n HttpClient.prototype.put = function (url, body, options) {\n if (options === void 0) { options = {}; }\n return this.request('PUT', url, addBody(options, body));\n };\n HttpClient = __decorate([\n Injectable(),\n __metadata(\"design:paramtypes\", [HttpHandler])\n ], HttpClient);\n return HttpClient;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * `HttpHandler` which applies an `HttpInterceptor` to an `HttpRequest`.\n *\n *\n */\nvar HttpInterceptorHandler = /** @class */ (function () {\n function HttpInterceptorHandler(next, interceptor) {\n this.next = next;\n this.interceptor = interceptor;\n }\n HttpInterceptorHandler.prototype.handle = function (req) {\n return this.interceptor.intercept(req, this.next);\n };\n return HttpInterceptorHandler;\n}());\n/**\n * A multi-provider token which represents the array of `HttpInterceptor`s that\n * are registered.\n *\n * @publicApi\n */\nvar HTTP_INTERCEPTORS = new InjectionToken('HTTP_INTERCEPTORS');\nvar NoopInterceptor = /** @class */ (function () {\n function NoopInterceptor() {\n }\n NoopInterceptor.prototype.intercept = function (req, next) {\n return next.handle(req);\n };\n NoopInterceptor = __decorate([\n Injectable()\n ], NoopInterceptor);\n return NoopInterceptor;\n}());\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Every request made through JSONP needs a callback name that's unique across the\n// whole page. Each request is assigned an id and the callback name is constructed\n// from that. The next id to be assigned is tracked in a global variable here that\n// is shared among all applications on the page.\nvar nextRequestId = 0;\n// Error text given when a JSONP script is injected, but doesn't invoke the callback\n// passed in its URL.\nvar JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';\n// Error text given when a request is passed to the JsonpClientBackend that doesn't\n// have a request method JSONP.\nvar JSONP_ERR_WRONG_METHOD = 'JSONP requests must use JSONP request method.';\nvar JSONP_ERR_WRONG_RESPONSE_TYPE = 'JSONP requests must use Json response type.';\n/**\n * DI token/abstract type representing a map of JSONP callbacks.\n *\n * In the browser, this should always be the `window` object.\n *\n *\n */\nvar JsonpCallbackContext = /** @class */ (function () {\n function JsonpCallbackContext() {\n }\n return JsonpCallbackContext;\n}());\n/**\n * `HttpBackend` that only processes `HttpRequest` with the JSONP method,\n * by performing JSONP style requests.\n *\n * @publicApi\n */\nvar JsonpClientBackend = /** @class */ (function () {\n function JsonpClientBackend(callbackMap, document) {\n this.callbackMap = callbackMap;\n this.document = document;\n }\n /**\n * Get the name of the next callback method, by incrementing the global `nextRequestId`.\n */\n JsonpClientBackend.prototype.nextCallback = function () { return \"ng_jsonp_callback_\" + nextRequestId++; };\n /**\n * Process a JSONP request and return an event stream of the results.\n */\n JsonpClientBackend.prototype.handle = function (req) {\n var _this = this;\n // Firstly, check both the method and response type. If either doesn't match\n // then the request was improperly routed here and cannot be handled.\n if (req.method !== 'JSONP') {\n throw new Error(JSONP_ERR_WRONG_METHOD);\n }\n else if (req.responseType !== 'json') {\n throw new Error(JSONP_ERR_WRONG_RESPONSE_TYPE);\n }\n // Everything else happens inside the Observable boundary.\n return new Observable(function (observer) {\n // The first step to make a request is to generate the callback name, and replace the\n // callback placeholder in the URL with the name. Care has to be taken here to ensure\n // a trailing &, if matched, gets inserted back into the URL in the correct place.\n var callback = _this.nextCallback();\n var url = req.urlWithParams.replace(/=JSONP_CALLBACK(&|$)/, \"=\" + callback + \"$1\");\n // Construct the