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\n`, styles: [\"\\n.ql-container.ngx-quill-view-html {\\n border: 0;\\n}\\n\"] }]\n }], function () { return [{ type: ɵngcc1.DomSanitizer, decorators: [{\n type: Inject,\n args: [DomSanitizer]\n }] }, { type: QuillService }]; }, { content: [{\n type: Input\n }], theme: [{\n type: Input\n }] }); })();\n\nclass QuillViewComponent {\n constructor(elementRef, renderer, zone, service, domSanitizer, platformId) {\n this.elementRef = elementRef;\n this.renderer = renderer;\n this.zone = zone;\n this.service = service;\n this.domSanitizer = domSanitizer;\n this.platformId = platformId;\n this.sanitize = false;\n this.strict = true;\n this.customModules = [];\n this.customOptions = [];\n this.preserveWhitespace = false;\n this.onEditorCreated = new EventEmitter();\n this.valueSetter = (quillEditor, value) => {\n const format = getFormat(this.format, this.service.config.format);\n let content = value;\n if (format === 'text') {\n quillEditor.setText(content);\n }\n else {\n if (format === 'html') {\n if (this.sanitize) {\n value = this.domSanitizer.sanitize(SecurityContext.HTML, value);\n }\n content = quillEditor.clipboard.convert(value);\n }\n else if (format === 'json') {\n try {\n content = JSON.parse(value);\n }\n catch (e) {\n content = [{ insert: value }];\n }\n }\n quillEditor.setContents(content);\n }\n };\n }\n ngOnChanges(changes) {\n if (!this.quillEditor) {\n return;\n }\n if (changes.content) {\n this.valueSetter(this.quillEditor, changes.content.currentValue);\n }\n }\n ngAfterViewInit() {\n return __awaiter(this, void 0, void 0, function* () {\n if (isPlatformServer(this.platformId)) {\n return;\n }\n // eslint-disable-next-line @typescript-eslint/naming-convention\n const Quill = yield this.service.getQuill();\n const modules = Object.assign({}, this.modules || this.service.config.modules);\n modules.toolbar = false;\n this.customOptions.forEach((customOption) => {\n const newCustomOption = Quill.import(customOption.import);\n newCustomOption.whitelist = customOption.whitelist;\n Quill.register(newCustomOption, true);\n });\n this.customModules.forEach(({ implementation, path }) => {\n Quill.register(path, implementation);\n });\n let debug = this.debug;\n if (!debug && debug !== false && this.service.config.debug) {\n debug = this.service.config.debug;\n }\n let formats = this.formats;\n if (!formats && formats === undefined) {\n formats = this.service.config.formats ?\n Object.assign({}, this.service.config.formats) : (this.service.config.formats === null ? null : undefined);\n }\n const theme = this.theme || (this.service.config.theme ? this.service.config.theme : 'snow');\n this.elementRef.nativeElement.insertAdjacentHTML('afterbegin', this.preserveWhitespace ? '' : '');\n this.editorElem = this.elementRef.nativeElement.querySelector('[quill-view-element]');\n this.zone.runOutsideAngular(() => {\n this.quillEditor = new Quill(this.editorElem, {\n debug: debug,\n formats: formats,\n modules,\n readOnly: true,\n strict: this.strict,\n theme\n });\n });\n this.renderer.addClass(this.editorElem, 'ngx-quill-view');\n if (this.content) {\n this.valueSetter(this.quillEditor, this.content);\n }\n // trigger created in a timeout to avoid changed models after checked\n setTimeout(() => {\n this.onEditorCreated.emit(this.quillEditor);\n });\n });\n }\n}\nQuillViewComponent.ɵfac = function QuillViewComponent_Factory(t) { return new (t || QuillViewComponent)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(QuillService), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.DomSanitizer), ɵngcc0.ɵɵdirectiveInject(PLATFORM_ID)); };\nQuillViewComponent.ɵcmp = /*@__PURE__*/ ɵngcc0.ɵɵdefineComponent({ type: QuillViewComponent, selectors: [[\"quill-view\"]], inputs: { sanitize: \"sanitize\", strict: \"strict\", customModules: \"customModules\", customOptions: \"customOptions\", preserveWhitespace: \"preserveWhitespace\", format: \"format\", theme: \"theme\", modules: \"modules\", debug: \"debug\", formats: \"formats\", content: \"content\" }, outputs: { onEditorCreated: \"onEditorCreated\" }, features: [ɵngcc0.ɵɵNgOnChangesFeature], decls: 0, vars: 0, template: function QuillViewComponent_Template(rf, ctx) { }, styles: [\"\\n.ql-container.ngx-quill-view {\\n border: 0;\\n}\\n\"], encapsulation: 2 });\nQuillViewComponent.ctorParameters = () => [\n { type: ElementRef },\n { type: Renderer2 },\n { type: NgZone },\n { type: QuillService },\n { type: DomSanitizer },\n { type: undefined, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] }\n];\nQuillViewComponent.propDecorators = {\n format: [{ type: Input }],\n theme: [{ type: Input }],\n modules: [{ type: Input }],\n debug: [{ type: Input }],\n formats: [{ type: Input }],\n sanitize: [{ type: Input }],\n strict: [{ type: Input }],\n content: [{ type: Input }],\n customModules: [{ type: Input }],\n customOptions: [{ type: Input }],\n preserveWhitespace: [{ type: Input }],\n onEditorCreated: [{ type: Output }]\n};\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(QuillViewComponent, [{\n type: Component,\n args: [{ encapsulation: ViewEncapsulation.None, selector: 'quill-view', template: `\n`, styles: [\"\\n.ql-container.ngx-quill-view {\\n border: 0;\\n}\\n\"] }]\n }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.Renderer2 }, { type: ɵngcc0.NgZone }, { type: QuillService }, { type: ɵngcc1.DomSanitizer }, { type: undefined, decorators: [{\n type: Inject,\n args: [PLATFORM_ID]\n }] }]; }, { sanitize: [{\n type: Input\n }], strict: [{\n type: Input\n }], customModules: [{\n type: Input\n }], customOptions: [{\n type: Input\n }], preserveWhitespace: [{\n type: Input\n }], onEditorCreated: [{\n type: Output\n }], format: [{\n type: Input\n }], theme: [{\n type: Input\n }], modules: [{\n type: Input\n }], debug: [{\n type: Input\n }], formats: [{\n type: Input\n }], content: [{\n type: Input\n }] }); })();\n\nclass QuillModule {\n static forRoot(config) {\n return {\n ngModule: QuillModule,\n providers: [\n {\n provide: QUILL_CONFIG_TOKEN,\n useValue: config\n }\n ]\n };\n }\n}\nQuillModule.ɵfac = function QuillModule_Factory(t) { return new (t || QuillModule)(); };\nQuillModule.ɵmod = /*@__PURE__*/ ɵngcc0.ɵɵdefineNgModule({ type: QuillModule });\nQuillModule.ɵinj = /*@__PURE__*/ ɵngcc0.ɵɵdefineInjector({ providers: [QuillService], imports: [CommonModule] });\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && ɵngcc0.ɵsetClassMetadata(QuillModule, [{\n type: NgModule,\n args: [{\n declarations: [\n QuillEditorComponent,\n QuillViewComponent,\n QuillViewHTMLComponent\n ],\n exports: [QuillEditorComponent, QuillViewComponent, QuillViewHTMLComponent],\n imports: [CommonModule],\n providers: [QuillService]\n }]\n }], null, null); })();\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(QuillModule, { declarations: function () { return [QuillEditorComponent, QuillViewComponent, QuillViewHTMLComponent]; }, imports: function () { return [CommonModule]; }, exports: function () { return [QuillEditorComponent, QuillViewComponent, QuillViewHTMLComponent]; } }); })();\n\n/*\n * Public API Surface of ngx-quill\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { QUILL_CONFIG_TOKEN, QuillEditorBase, QuillEditorComponent, QuillModule, QuillService, QuillViewComponent, QuillViewHTMLComponent, defaultModules };\n\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n// If obj.hasOwnProperty has been overridden, then calling\n// obj.hasOwnProperty(prop) will break.\n// See: https://github.com/joyent/node/issues/1707\nfunction hasOwnProperty(obj, prop) {\n return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nmodule.exports = function(qs, sep, eq, options) {\n sep = sep || '&';\n eq = eq || '=';\n var obj = {};\n\n if (typeof qs !== 'string' || qs.length === 0) {\n return obj;\n }\n\n var regexp = /\\+/g;\n qs = qs.split(sep);\n\n var maxKeys = 1000;\n if (options && typeof options.maxKeys === 'number') {\n maxKeys = options.maxKeys;\n }\n\n var len = qs.length;\n // maxKeys <= 0 means that we should not limit keys count\n if (maxKeys > 0 && len > maxKeys) {\n len = maxKeys;\n }\n\n for (var i = 0; i < len; ++i) {\n var x = qs[i].replace(regexp, '%20'),\n idx = x.indexOf(eq),\n kstr, vstr, k, v;\n\n if (idx >= 0) {\n kstr = x.substr(0, idx);\n vstr = x.substr(idx + 1);\n } else {\n kstr = x;\n vstr = '';\n }\n\n k = decodeURIComponent(kstr);\n v = decodeURIComponent(vstr);\n\n if (!hasOwnProperty(obj, k)) {\n obj[k] = v;\n } else if (Array.isArray(obj[k])) {\n obj[k].push(v);\n } else {\n obj[k] = [obj[k], v];\n }\n }\n\n return obj;\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar stringifyPrimitive = function(v) {\n switch (typeof v) {\n case 'string':\n return v;\n\n case 'boolean':\n return v ? 'true' : 'false';\n\n case 'number':\n return isFinite(v) ? v : '';\n\n default:\n return '';\n }\n};\n\nmodule.exports = function(obj, sep, eq, name) {\n sep = sep || '&';\n eq = eq || '=';\n if (obj === null) {\n obj = undefined;\n }\n\n if (typeof obj === 'object') {\n return Object.keys(obj).map(function(k) {\n var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;\n if (Array.isArray(obj[k])) {\n return obj[k].map(function(v) {\n return ks + encodeURIComponent(stringifyPrimitive(v));\n }).join(sep);\n } else {\n return ks + encodeURIComponent(stringifyPrimitive(obj[k]));\n }\n }).join(sep);\n\n }\n\n if (!name) return '';\n return encodeURIComponent(stringifyPrimitive(name)) + eq +\n encodeURIComponent(stringifyPrimitive(obj));\n};\n","'use strict';\n\nexports.decode = exports.parse = require('./decode');\nexports.encode = exports.stringify = require('./encode');\n","import { Subject } from './Subject';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nexport class BehaviorSubject extends Subject {\n constructor(_value) {\n super();\n this._value = _value;\n }\n get value() {\n return this.getValue();\n }\n _subscribe(subscriber) {\n const subscription = super._subscribe(subscriber);\n if (subscription && !subscription.closed) {\n subscriber.next(this._value);\n }\n return subscription;\n }\n getValue() {\n if (this.hasError) {\n throw this.thrownError;\n }\n else if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else {\n return this._value;\n }\n }\n next(value) {\n super.next(this._value = value);\n }\n}\n","import { Subscriber } from './Subscriber';\nexport class InnerSubscriber extends Subscriber {\n constructor(parent, outerValue, outerIndex) {\n super();\n this.parent = parent;\n this.outerValue = outerValue;\n this.outerIndex = outerIndex;\n this.index = 0;\n }\n _next(value) {\n this.parent.notifyNext(this.outerValue, value, this.outerIndex, this.index++, this);\n }\n _error(error) {\n this.parent.notifyError(error, this);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete(this);\n this.unsubscribe();\n }\n}\n","import { empty } from './observable/empty';\nimport { of } from './observable/of';\nimport { throwError } from './observable/throwError';\nexport var NotificationKind;\n(function (NotificationKind) {\n NotificationKind[\"NEXT\"] = \"N\";\n NotificationKind[\"ERROR\"] = \"E\";\n NotificationKind[\"COMPLETE\"] = \"C\";\n})(NotificationKind || (NotificationKind = {}));\nexport class Notification {\n constructor(kind, value, error) {\n this.kind = kind;\n this.value = value;\n this.error = error;\n this.hasValue = kind === 'N';\n }\n observe(observer) {\n switch (this.kind) {\n case 'N':\n return observer.next && observer.next(this.value);\n case 'E':\n return observer.error && observer.error(this.error);\n case 'C':\n return observer.complete && observer.complete();\n }\n }\n do(next, error, complete) {\n const kind = this.kind;\n switch (kind) {\n case 'N':\n return next && next(this.value);\n case 'E':\n return error && error(this.error);\n case 'C':\n return complete && complete();\n }\n }\n accept(nextOrObserver, error, complete) {\n if (nextOrObserver && typeof nextOrObserver.next === 'function') {\n return this.observe(nextOrObserver);\n }\n else {\n return this.do(nextOrObserver, error, complete);\n }\n }\n toObservable() {\n const kind = this.kind;\n switch (kind) {\n case 'N':\n return of(this.value);\n case 'E':\n return throwError(this.error);\n case 'C':\n return empty();\n }\n throw new Error('unexpected notification kind value');\n }\n static createNext(value) {\n if (typeof value !== 'undefined') {\n return new Notification('N', value);\n }\n return Notification.undefinedValueNotification;\n }\n static createError(err) {\n return new Notification('E', undefined, err);\n }\n static createComplete() {\n return Notification.completeNotification;\n }\n}\nNotification.completeNotification = new Notification('C');\nNotification.undefinedValueNotification = new Notification('N', undefined);\n","import { canReportError } from './util/canReportError';\nimport { toSubscriber } from './util/toSubscriber';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nexport class Observable {\n constructor(subscribe) {\n this._isScalar = false;\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n lift(operator) {\n const observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n }\n subscribe(observerOrNext, error, complete) {\n const { operator } = this;\n const sink = toSubscriber(observerOrNext, error, complete);\n if (operator) {\n sink.add(operator.call(sink, this.source));\n }\n else {\n sink.add(this.source || (config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?\n this._subscribe(sink) :\n this._trySubscribe(sink));\n }\n if (config.useDeprecatedSynchronousErrorHandling) {\n if (sink.syncErrorThrowable) {\n sink.syncErrorThrowable = false;\n if (sink.syncErrorThrown) {\n throw sink.syncErrorValue;\n }\n }\n }\n return sink;\n }\n _trySubscribe(sink) {\n try {\n return this._subscribe(sink);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n sink.syncErrorThrown = true;\n sink.syncErrorValue = err;\n }\n if (canReportError(sink)) {\n sink.error(err);\n }\n else {\n console.warn(err);\n }\n }\n }\n forEach(next, promiseCtor) {\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor((resolve, reject) => {\n let subscription;\n subscription = this.subscribe((value) => {\n try {\n next(value);\n }\n catch (err) {\n reject(err);\n if (subscription) {\n subscription.unsubscribe();\n }\n }\n }, reject, resolve);\n });\n }\n _subscribe(subscriber) {\n const { source } = this;\n return source && source.subscribe(subscriber);\n }\n [Symbol_observable]() {\n return this;\n }\n pipe(...operations) {\n if (operations.length === 0) {\n return this;\n }\n return pipeFromArray(operations)(this);\n }\n toPromise(promiseCtor) {\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor((resolve, reject) => {\n let value;\n this.subscribe((x) => value = x, (err) => reject(err), () => resolve(value));\n });\n }\n}\nObservable.create = (subscribe) => {\n return new Observable(subscribe);\n};\nfunction getPromiseCtor(promiseCtor) {\n if (!promiseCtor) {\n promiseCtor = config.Promise || Promise;\n }\n if (!promiseCtor) {\n throw new Error('no Promise impl found');\n }\n return promiseCtor;\n}\n","import { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport const empty = {\n closed: true,\n next(value) { },\n error(err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n hostReportError(err);\n }\n },\n complete() { }\n};\n","import { Subscriber } from './Subscriber';\nexport class OuterSubscriber extends Subscriber {\n notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n this.destination.next(innerValue);\n }\n notifyError(error, innerSub) {\n this.destination.error(error);\n }\n notifyComplete(innerSub) {\n this.destination.complete();\n }\n}\n","import { Subject } from './Subject';\nimport { queue } from './scheduler/queue';\nimport { Subscription } from './Subscription';\nimport { ObserveOnSubscriber } from './operators/observeOn';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nexport class ReplaySubject extends Subject {\n constructor(bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, scheduler) {\n super();\n this.scheduler = scheduler;\n this._events = [];\n this._infiniteTimeWindow = false;\n this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n this._windowTime = windowTime < 1 ? 1 : windowTime;\n if (windowTime === Number.POSITIVE_INFINITY) {\n this._infiniteTimeWindow = true;\n this.next = this.nextInfiniteTimeWindow;\n }\n else {\n this.next = this.nextTimeWindow;\n }\n }\n nextInfiniteTimeWindow(value) {\n if (!this.isStopped) {\n const _events = this._events;\n _events.push(value);\n if (_events.length > this._bufferSize) {\n _events.shift();\n }\n }\n super.next(value);\n }\n nextTimeWindow(value) {\n if (!this.isStopped) {\n this._events.push(new ReplayEvent(this._getNow(), value));\n this._trimBufferThenGetEvents();\n }\n super.next(value);\n }\n _subscribe(subscriber) {\n const _infiniteTimeWindow = this._infiniteTimeWindow;\n const _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n const scheduler = this.scheduler;\n const len = _events.length;\n let subscription;\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else if (this.isStopped || this.hasError) {\n subscription = Subscription.EMPTY;\n }\n else {\n this.observers.push(subscriber);\n subscription = new SubjectSubscription(this, subscriber);\n }\n if (scheduler) {\n subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));\n }\n if (_infiniteTimeWindow) {\n for (let i = 0; i < len && !subscriber.closed; i++) {\n subscriber.next(_events[i]);\n }\n }\n else {\n for (let i = 0; i < len && !subscriber.closed; i++) {\n subscriber.next(_events[i].value);\n }\n }\n if (this.hasError) {\n subscriber.error(this.thrownError);\n }\n else if (this.isStopped) {\n subscriber.complete();\n }\n return subscription;\n }\n _getNow() {\n return (this.scheduler || queue).now();\n }\n _trimBufferThenGetEvents() {\n const now = this._getNow();\n const _bufferSize = this._bufferSize;\n const _windowTime = this._windowTime;\n const _events = this._events;\n const eventsCount = _events.length;\n let spliceCount = 0;\n while (spliceCount < eventsCount) {\n if ((now - _events[spliceCount].time) < _windowTime) {\n break;\n }\n spliceCount++;\n }\n if (eventsCount > _bufferSize) {\n spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n }\n if (spliceCount > 0) {\n _events.splice(0, spliceCount);\n }\n return _events;\n }\n}\nclass ReplayEvent {\n constructor(time, value) {\n this.time = time;\n this.value = value;\n }\n}\n","export class Scheduler {\n constructor(SchedulerAction, now = Scheduler.now) {\n this.SchedulerAction = SchedulerAction;\n this.now = now;\n }\n schedule(work, delay = 0, state) {\n return new this.SchedulerAction(this, work).schedule(state, delay);\n }\n}\nScheduler.now = () => Date.now();\n","import { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nexport class SubjectSubscriber extends Subscriber {\n constructor(destination) {\n super(destination);\n this.destination = destination;\n }\n}\nexport class Subject extends Observable {\n constructor() {\n super();\n this.observers = [];\n this.closed = false;\n this.isStopped = false;\n this.hasError = false;\n this.thrownError = null;\n }\n [rxSubscriberSymbol]() {\n return new SubjectSubscriber(this);\n }\n lift(operator) {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n }\n next(value) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n if (!this.isStopped) {\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].next(value);\n }\n }\n }\n error(err) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n this.hasError = true;\n this.thrownError = err;\n this.isStopped = true;\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].error(err);\n }\n this.observers.length = 0;\n }\n complete() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n this.isStopped = true;\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].complete();\n }\n this.observers.length = 0;\n }\n unsubscribe() {\n this.isStopped = true;\n this.closed = true;\n this.observers = null;\n }\n _trySubscribe(subscriber) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else {\n return super._trySubscribe(subscriber);\n }\n }\n _subscribe(subscriber) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else if (this.hasError) {\n subscriber.error(this.thrownError);\n return Subscription.EMPTY;\n }\n else if (this.isStopped) {\n subscriber.complete();\n return Subscription.EMPTY;\n }\n else {\n this.observers.push(subscriber);\n return new SubjectSubscription(this, subscriber);\n }\n }\n asObservable() {\n const observable = new Observable();\n observable.source = this;\n return observable;\n }\n}\nSubject.create = (destination, source) => {\n return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n constructor(destination, source) {\n super();\n this.destination = destination;\n this.source = source;\n }\n next(value) {\n const { destination } = this;\n if (destination && destination.next) {\n destination.next(value);\n }\n }\n error(err) {\n const { destination } = this;\n if (destination && destination.error) {\n this.destination.error(err);\n }\n }\n complete() {\n const { destination } = this;\n if (destination && destination.complete) {\n this.destination.complete();\n }\n }\n _subscribe(subscriber) {\n const { source } = this;\n if (source) {\n return this.source.subscribe(subscriber);\n }\n else {\n return Subscription.EMPTY;\n }\n }\n}\n","import { Subscription } from './Subscription';\nexport class SubjectSubscription extends Subscription {\n constructor(subject, subscriber) {\n super();\n this.subject = subject;\n this.subscriber = subscriber;\n this.closed = false;\n }\n unsubscribe() {\n if (this.closed) {\n return;\n }\n this.closed = true;\n const subject = this.subject;\n const observers = subject.observers;\n this.subject = null;\n if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {\n return;\n }\n const subscriberIndex = observers.indexOf(this.subscriber);\n if (subscriberIndex !== -1) {\n observers.splice(subscriberIndex, 1);\n }\n }\n}\n","import { isFunction } from './util/isFunction';\nimport { empty as emptyObserver } from './Observer';\nimport { Subscription } from './Subscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nimport { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport class Subscriber extends Subscription {\n constructor(destinationOrNext, error, complete) {\n super();\n this.syncErrorValue = null;\n this.syncErrorThrown = false;\n this.syncErrorThrowable = false;\n this.isStopped = false;\n switch (arguments.length) {\n case 0:\n this.destination = emptyObserver;\n break;\n case 1:\n if (!destinationOrNext) {\n this.destination = emptyObserver;\n break;\n }\n if (typeof destinationOrNext === 'object') {\n if (destinationOrNext instanceof Subscriber) {\n this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n this.destination = destinationOrNext;\n destinationOrNext.add(this);\n }\n else {\n this.syncErrorThrowable = true;\n this.destination = new SafeSubscriber(this, destinationOrNext);\n }\n break;\n }\n default:\n this.syncErrorThrowable = true;\n this.destination = new SafeSubscriber(this, destinationOrNext, error, complete);\n break;\n }\n }\n [rxSubscriberSymbol]() { return this; }\n static create(next, error, complete) {\n const subscriber = new Subscriber(next, error, complete);\n subscriber.syncErrorThrowable = false;\n return subscriber;\n }\n next(value) {\n if (!this.isStopped) {\n this._next(value);\n }\n }\n error(err) {\n if (!this.isStopped) {\n this.isStopped = true;\n this._error(err);\n }\n }\n complete() {\n if (!this.isStopped) {\n this.isStopped = true;\n this._complete();\n }\n }\n unsubscribe() {\n if (this.closed) {\n return;\n }\n this.isStopped = true;\n super.unsubscribe();\n }\n _next(value) {\n this.destination.next(value);\n }\n _error(err) {\n this.destination.error(err);\n this.unsubscribe();\n }\n _complete() {\n this.destination.complete();\n this.unsubscribe();\n }\n _unsubscribeAndRecycle() {\n const { _parentOrParents } = this;\n this._parentOrParents = null;\n this.unsubscribe();\n this.closed = false;\n this.isStopped = false;\n this._parentOrParents = _parentOrParents;\n return this;\n }\n}\nexport class SafeSubscriber extends Subscriber {\n constructor(_parentSubscriber, observerOrNext, error, complete) {\n super();\n this._parentSubscriber = _parentSubscriber;\n let next;\n let context = this;\n if (isFunction(observerOrNext)) {\n next = observerOrNext;\n }\n else if (observerOrNext) {\n next = observerOrNext.next;\n error = observerOrNext.error;\n complete = observerOrNext.complete;\n if (observerOrNext !== emptyObserver) {\n context = Object.create(observerOrNext);\n if (isFunction(context.unsubscribe)) {\n this.add(context.unsubscribe.bind(context));\n }\n context.unsubscribe = this.unsubscribe.bind(this);\n }\n }\n this._context = context;\n this._next = next;\n this._error = error;\n this._complete = complete;\n }\n next(value) {\n if (!this.isStopped && this._next) {\n const { _parentSubscriber } = this;\n if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(this._next, value);\n }\n else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n this.unsubscribe();\n }\n }\n }\n error(err) {\n if (!this.isStopped) {\n const { _parentSubscriber } = this;\n const { useDeprecatedSynchronousErrorHandling } = config;\n if (this._error) {\n if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(this._error, err);\n this.unsubscribe();\n }\n else {\n this.__tryOrSetError(_parentSubscriber, this._error, err);\n this.unsubscribe();\n }\n }\n else if (!_parentSubscriber.syncErrorThrowable) {\n this.unsubscribe();\n if (useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n hostReportError(err);\n }\n else {\n if (useDeprecatedSynchronousErrorHandling) {\n _parentSubscriber.syncErrorValue = err;\n _parentSubscriber.syncErrorThrown = true;\n }\n else {\n hostReportError(err);\n }\n this.unsubscribe();\n }\n }\n }\n complete() {\n if (!this.isStopped) {\n const { _parentSubscriber } = this;\n if (this._complete) {\n const wrappedComplete = () => this._complete.call(this._context);\n if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(wrappedComplete);\n this.unsubscribe();\n }\n else {\n this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n this.unsubscribe();\n }\n }\n else {\n this.unsubscribe();\n }\n }\n }\n __tryOrUnsub(fn, value) {\n try {\n fn.call(this._context, value);\n }\n catch (err) {\n this.unsubscribe();\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n hostReportError(err);\n }\n }\n }\n __tryOrSetError(parent, fn, value) {\n if (!config.useDeprecatedSynchronousErrorHandling) {\n throw new Error('bad call');\n }\n try {\n fn.call(this._context, value);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n parent.syncErrorValue = err;\n parent.syncErrorThrown = true;\n return true;\n }\n else {\n hostReportError(err);\n return true;\n }\n }\n return false;\n }\n _unsubscribe() {\n const { _parentSubscriber } = this;\n this._context = null;\n this._parentSubscriber = null;\n _parentSubscriber.unsubscribe();\n }\n}\n","import { isArray } from './util/isArray';\nimport { isObject } from './util/isObject';\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nexport class Subscription {\n constructor(unsubscribe) {\n this.closed = false;\n this._parentOrParents = null;\n this._subscriptions = null;\n if (unsubscribe) {\n this._ctorUnsubscribe = true;\n this._unsubscribe = unsubscribe;\n }\n }\n unsubscribe() {\n let errors;\n if (this.closed) {\n return;\n }\n let { _parentOrParents, _ctorUnsubscribe, _unsubscribe, _subscriptions } = this;\n this.closed = true;\n this._parentOrParents = null;\n this._subscriptions = null;\n if (_parentOrParents instanceof Subscription) {\n _parentOrParents.remove(this);\n }\n else if (_parentOrParents !== null) {\n for (let index = 0; index < _parentOrParents.length; ++index) {\n const parent = _parentOrParents[index];\n parent.remove(this);\n }\n }\n if (isFunction(_unsubscribe)) {\n if (_ctorUnsubscribe) {\n this._unsubscribe = undefined;\n }\n try {\n _unsubscribe.call(this);\n }\n catch (e) {\n errors = e instanceof UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n }\n }\n if (isArray(_subscriptions)) {\n let index = -1;\n let len = _subscriptions.length;\n while (++index < len) {\n const sub = _subscriptions[index];\n if (isObject(sub)) {\n try {\n sub.unsubscribe();\n }\n catch (e) {\n errors = errors || [];\n if (e instanceof UnsubscriptionError) {\n errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n }\n else {\n errors.push(e);\n }\n }\n }\n }\n }\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n add(teardown) {\n let subscription = teardown;\n if (!teardown) {\n return Subscription.EMPTY;\n }\n switch (typeof teardown) {\n case 'function':\n subscription = new Subscription(teardown);\n case 'object':\n if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n return subscription;\n }\n else if (this.closed) {\n subscription.unsubscribe();\n return subscription;\n }\n else if (!(subscription instanceof Subscription)) {\n const tmp = subscription;\n subscription = new Subscription();\n subscription._subscriptions = [tmp];\n }\n break;\n default: {\n throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n }\n }\n let { _parentOrParents } = subscription;\n if (_parentOrParents === null) {\n subscription._parentOrParents = this;\n }\n else if (_parentOrParents instanceof Subscription) {\n if (_parentOrParents === this) {\n return subscription;\n }\n subscription._parentOrParents = [_parentOrParents, this];\n }\n else if (_parentOrParents.indexOf(this) === -1) {\n _parentOrParents.push(this);\n }\n else {\n return subscription;\n }\n const subscriptions = this._subscriptions;\n if (subscriptions === null) {\n this._subscriptions = [subscription];\n }\n else {\n subscriptions.push(subscription);\n }\n return subscription;\n }\n remove(subscription) {\n const subscriptions = this._subscriptions;\n if (subscriptions) {\n const subscriptionIndex = subscriptions.indexOf(subscription);\n if (subscriptionIndex !== -1) {\n subscriptions.splice(subscriptionIndex, 1);\n }\n }\n }\n}\nSubscription.EMPTY = (function (empty) {\n empty.closed = true;\n return empty;\n}(new Subscription()));\nfunction flattenUnsubscriptionErrors(errors) {\n return errors.reduce((errs, err) => errs.concat((err instanceof UnsubscriptionError) ? err.errors : err), []);\n}\n","let _enable_super_gross_mode_that_will_cause_bad_things = false;\nexport const config = {\n Promise: undefined,\n set useDeprecatedSynchronousErrorHandling(value) {\n if (value) {\n const error = new Error();\n console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n }\n else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n console.log('RxJS: Back to a better error behavior. Thank you. <3');\n }\n _enable_super_gross_mode_that_will_cause_bad_things = value;\n },\n get useDeprecatedSynchronousErrorHandling() {\n return _enable_super_gross_mode_that_will_cause_bad_things;\n },\n};\n","import { Subscriber } from './Subscriber';\nimport { Observable } from './Observable';\nimport { subscribeTo } from './util/subscribeTo';\nexport class SimpleInnerSubscriber extends Subscriber {\n constructor(parent) {\n super();\n this.parent = parent;\n }\n _next(value) {\n this.parent.notifyNext(value);\n }\n _error(error) {\n this.parent.notifyError(error);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete();\n this.unsubscribe();\n }\n}\nexport class ComplexInnerSubscriber extends Subscriber {\n constructor(parent, outerValue, outerIndex) {\n super();\n this.parent = parent;\n this.outerValue = outerValue;\n this.outerIndex = outerIndex;\n }\n _next(value) {\n this.parent.notifyNext(this.outerValue, value, this.outerIndex, this);\n }\n _error(error) {\n this.parent.notifyError(error);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete(this);\n this.unsubscribe();\n }\n}\nexport class SimpleOuterSubscriber extends Subscriber {\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n notifyError(err) {\n this.destination.error(err);\n }\n notifyComplete() {\n this.destination.complete();\n }\n}\nexport class ComplexOuterSubscriber extends Subscriber {\n notifyNext(_outerValue, innerValue, _outerIndex, _innerSub) {\n this.destination.next(innerValue);\n }\n notifyError(error) {\n this.destination.error(error);\n }\n notifyComplete(_innerSub) {\n this.destination.complete();\n }\n}\nexport function innerSubscribe(result, innerSubscriber) {\n if (innerSubscriber.closed) {\n return undefined;\n }\n if (result instanceof Observable) {\n return result.subscribe(innerSubscriber);\n }\n let subscription;\n try {\n subscription = subscribeTo(result)(innerSubscriber);\n }\n catch (error) {\n innerSubscriber.error(error);\n }\n return subscription;\n}\n","import { SubjectSubscriber } from '../Subject';\nimport { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nexport class ConnectableObservable extends Observable {\n constructor(source, subjectFactory) {\n super();\n this.source = source;\n this.subjectFactory = subjectFactory;\n this._refCount = 0;\n this._isComplete = false;\n }\n _subscribe(subscriber) {\n return this.getSubject().subscribe(subscriber);\n }\n getSubject() {\n const subject = this._subject;\n if (!subject || subject.isStopped) {\n this._subject = this.subjectFactory();\n }\n return this._subject;\n }\n connect() {\n let connection = this._connection;\n if (!connection) {\n this._isComplete = false;\n connection = this._connection = new Subscription();\n connection.add(this.source\n .subscribe(new ConnectableSubscriber(this.getSubject(), this)));\n if (connection.closed) {\n this._connection = null;\n connection = Subscription.EMPTY;\n }\n }\n return connection;\n }\n refCount() {\n return higherOrderRefCount()(this);\n }\n}\nexport const connectableObservableDescriptor = (() => {\n const connectableProto = ConnectableObservable.prototype;\n return {\n operator: { value: null },\n _refCount: { value: 0, writable: true },\n _subject: { value: null, writable: true },\n _connection: { value: null, writable: true },\n _subscribe: { value: connectableProto._subscribe },\n _isComplete: { value: connectableProto._isComplete, writable: true },\n getSubject: { value: connectableProto.getSubject },\n connect: { value: connectableProto.connect },\n refCount: { value: connectableProto.refCount }\n };\n})();\nclass ConnectableSubscriber extends SubjectSubscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _error(err) {\n this._unsubscribe();\n super._error(err);\n }\n _complete() {\n this.connectable._isComplete = true;\n this._unsubscribe();\n super._complete();\n }\n _unsubscribe() {\n const connectable = this.connectable;\n if (connectable) {\n this.connectable = null;\n const connection = connectable._connection;\n connectable._refCount = 0;\n connectable._subject = null;\n connectable._connection = null;\n if (connection) {\n connection.unsubscribe();\n }\n }\n }\n}\nclass RefCountOperator {\n constructor(connectable) {\n this.connectable = connectable;\n }\n call(subscriber, source) {\n const { connectable } = this;\n connectable._refCount++;\n const refCounter = new RefCountSubscriber(subscriber, connectable);\n const subscription = source.subscribe(refCounter);\n if (!refCounter.closed) {\n refCounter.connection = connectable.connect();\n }\n return subscription;\n }\n}\nclass RefCountSubscriber extends Subscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _unsubscribe() {\n const { connectable } = this;\n if (!connectable) {\n this.connection = null;\n return;\n }\n this.connectable = null;\n const refCount = connectable._refCount;\n if (refCount <= 0) {\n this.connection = null;\n return;\n }\n connectable._refCount = refCount - 1;\n if (refCount > 1) {\n this.connection = null;\n return;\n }\n const { connection } = this;\n const sharedConnection = connectable._connection;\n this.connection = null;\n if (sharedConnection && (!connection || sharedConnection === connection)) {\n sharedConnection.unsubscribe();\n }\n }\n}\n","import { isScheduler } from '../util/isScheduler';\nimport { isArray } from '../util/isArray';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { fromArray } from './fromArray';\nconst NONE = {};\nexport function combineLatest(...observables) {\n let resultSelector = undefined;\n let scheduler = undefined;\n if (isScheduler(observables[observables.length - 1])) {\n scheduler = observables.pop();\n }\n if (typeof observables[observables.length - 1] === 'function') {\n resultSelector = observables.pop();\n }\n if (observables.length === 1 && isArray(observables[0])) {\n observables = observables[0];\n }\n return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));\n}\nexport class CombineLatestOperator {\n constructor(resultSelector) {\n this.resultSelector = resultSelector;\n }\n call(subscriber, source) {\n return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));\n }\n}\nexport class CombineLatestSubscriber extends OuterSubscriber {\n constructor(destination, resultSelector) {\n super(destination);\n this.resultSelector = resultSelector;\n this.active = 0;\n this.values = [];\n this.observables = [];\n }\n _next(observable) {\n this.values.push(NONE);\n this.observables.push(observable);\n }\n _complete() {\n const observables = this.observables;\n const len = observables.length;\n if (len === 0) {\n this.destination.complete();\n }\n else {\n this.active = len;\n this.toRespond = len;\n for (let i = 0; i < len; i++) {\n const observable = observables[i];\n this.add(subscribeToResult(this, observable, undefined, i));\n }\n }\n }\n notifyComplete(unused) {\n if ((this.active -= 1) === 0) {\n this.destination.complete();\n }\n }\n notifyNext(_outerValue, innerValue, outerIndex) {\n const values = this.values;\n const oldVal = values[outerIndex];\n const toRespond = !this.toRespond\n ? 0\n : oldVal === NONE ? --this.toRespond : this.toRespond;\n values[outerIndex] = innerValue;\n if (toRespond === 0) {\n if (this.resultSelector) {\n this._tryResultSelector(values);\n }\n else {\n this.destination.next(values.slice());\n }\n }\n }\n _tryResultSelector(values) {\n let result;\n try {\n result = this.resultSelector.apply(this, values);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(result);\n }\n}\n","import { of } from './of';\nimport { concatAll } from '../operators/concatAll';\nexport function concat(...observables) {\n return concatAll()(of(...observables));\n}\n","import { Observable } from '../Observable';\nimport { from } from './from';\nimport { empty } from './empty';\nexport function defer(observableFactory) {\n return new Observable(subscriber => {\n let input;\n try {\n input = observableFactory();\n }\n catch (err) {\n subscriber.error(err);\n return undefined;\n }\n const source = input ? from(input) : empty();\n return source.subscribe(subscriber);\n });\n}\n","import { Observable } from '../Observable';\nexport const EMPTY = new Observable(subscriber => subscriber.complete());\nexport function empty(scheduler) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n return new Observable(subscriber => scheduler.schedule(() => subscriber.complete()));\n}\n","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { map } from '../operators/map';\nimport { isObject } from '../util/isObject';\nimport { from } from './from';\nexport function forkJoin(...sources) {\n if (sources.length === 1) {\n const first = sources[0];\n if (isArray(first)) {\n return forkJoinInternal(first, null);\n }\n if (isObject(first) && Object.getPrototypeOf(first) === Object.prototype) {\n const keys = Object.keys(first);\n return forkJoinInternal(keys.map(key => first[key]), keys);\n }\n }\n if (typeof sources[sources.length - 1] === 'function') {\n const resultSelector = sources.pop();\n sources = (sources.length === 1 && isArray(sources[0])) ? sources[0] : sources;\n return forkJoinInternal(sources, null).pipe(map((args) => resultSelector(...args)));\n }\n return forkJoinInternal(sources, null);\n}\nfunction forkJoinInternal(sources, keys) {\n return new Observable(subscriber => {\n const len = sources.length;\n if (len === 0) {\n subscriber.complete();\n return;\n }\n const values = new Array(len);\n let completed = 0;\n let emitted = 0;\n for (let i = 0; i < len; i++) {\n const source = from(sources[i]);\n let hasValue = false;\n subscriber.add(source.subscribe({\n next: value => {\n if (!hasValue) {\n hasValue = true;\n emitted++;\n }\n values[i] = value;\n },\n error: err => subscriber.error(err),\n complete: () => {\n completed++;\n if (completed === len || !hasValue) {\n if (emitted === len) {\n subscriber.next(keys ?\n keys.reduce((result, key, i) => (result[key] = values[i], result), {}) :\n values);\n }\n subscriber.complete();\n }\n }\n }));\n }\n });\n}\n","import { Observable } from '../Observable';\nimport { subscribeTo } from '../util/subscribeTo';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n if (!scheduler) {\n if (input instanceof Observable) {\n return input;\n }\n return new Observable(subscribeTo(input));\n }\n else {\n return scheduled(input, scheduler);\n }\n}\n","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n if (!scheduler) {\n return new Observable(subscribeToArray(input));\n }\n else {\n return scheduleArray(input, scheduler);\n }\n}\n","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nconst toString = (() => Object.prototype.toString)();\nexport function fromEvent(target, eventName, options, resultSelector) {\n if (isFunction(options)) {\n resultSelector = options;\n options = undefined;\n }\n if (resultSelector) {\n return fromEvent(target, eventName, options).pipe(map(args => isArray(args) ? resultSelector(...args) : resultSelector(args)));\n }\n return new Observable(subscriber => {\n function handler(e) {\n if (arguments.length > 1) {\n subscriber.next(Array.prototype.slice.call(arguments));\n }\n else {\n subscriber.next(e);\n }\n }\n setupSubscription(target, eventName, handler, subscriber, options);\n });\n}\nfunction setupSubscription(sourceObj, eventName, handler, subscriber, options) {\n let unsubscribe;\n if (isEventTarget(sourceObj)) {\n const source = sourceObj;\n sourceObj.addEventListener(eventName, handler, options);\n unsubscribe = () => source.removeEventListener(eventName, handler, options);\n }\n else if (isJQueryStyleEventEmitter(sourceObj)) {\n const source = sourceObj;\n sourceObj.on(eventName, handler);\n unsubscribe = () => source.off(eventName, handler);\n }\n else if (isNodeStyleEventEmitter(sourceObj)) {\n const source = sourceObj;\n sourceObj.addListener(eventName, handler);\n unsubscribe = () => source.removeListener(eventName, handler);\n }\n else if (sourceObj && sourceObj.length) {\n for (let i = 0, len = sourceObj.length; i < len; i++) {\n setupSubscription(sourceObj[i], eventName, handler, subscriber, options);\n }\n }\n else {\n throw new TypeError('Invalid event target');\n }\n subscriber.add(unsubscribe);\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n","import { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nexport function merge(...observables) {\n let concurrent = Number.POSITIVE_INFINITY;\n let scheduler = null;\n let last = observables[observables.length - 1];\n if (isScheduler(last)) {\n scheduler = observables.pop();\n if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {\n concurrent = observables.pop();\n }\n }\n else if (typeof last === 'number') {\n concurrent = observables.pop();\n }\n if (scheduler === null && observables.length === 1 && observables[0] instanceof Observable) {\n return observables[0];\n }\n return mergeAll(concurrent)(fromArray(observables, scheduler));\n}\n","import { Observable } from '../Observable';\nimport { noop } from '../util/noop';\nexport const NEVER = new Observable(noop);\nexport function never() {\n return NEVER;\n}\n","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of(...args) {\n let scheduler = args[args.length - 1];\n if (isScheduler(scheduler)) {\n args.pop();\n return scheduleArray(args, scheduler);\n }\n else {\n return fromArray(args);\n }\n}\n","import { isArray } from '../util/isArray';\nimport { fromArray } from './fromArray';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function race(...observables) {\n if (observables.length === 1) {\n if (isArray(observables[0])) {\n observables = observables[0];\n }\n else {\n return observables[0];\n }\n }\n return fromArray(observables, undefined).lift(new RaceOperator());\n}\nexport class RaceOperator {\n call(subscriber, source) {\n return source.subscribe(new RaceSubscriber(subscriber));\n }\n}\nexport class RaceSubscriber extends OuterSubscriber {\n constructor(destination) {\n super(destination);\n this.hasFirst = false;\n this.observables = [];\n this.subscriptions = [];\n }\n _next(observable) {\n this.observables.push(observable);\n }\n _complete() {\n const observables = this.observables;\n const len = observables.length;\n if (len === 0) {\n this.destination.complete();\n }\n else {\n for (let i = 0; i < len && !this.hasFirst; i++) {\n const observable = observables[i];\n const subscription = subscribeToResult(this, observable, undefined, i);\n if (this.subscriptions) {\n this.subscriptions.push(subscription);\n }\n this.add(subscription);\n }\n this.observables = null;\n }\n }\n notifyNext(_outerValue, innerValue, outerIndex) {\n if (!this.hasFirst) {\n this.hasFirst = true;\n for (let i = 0; i < this.subscriptions.length; i++) {\n if (i !== outerIndex) {\n let subscription = this.subscriptions[i];\n subscription.unsubscribe();\n this.remove(subscription);\n }\n }\n this.subscriptions = null;\n }\n this.destination.next(innerValue);\n }\n}\n","import { Observable } from '../Observable';\nexport function throwError(error, scheduler) {\n if (!scheduler) {\n return new Observable(subscriber => subscriber.error(error));\n }\n else {\n return new Observable(subscriber => scheduler.schedule(dispatch, 0, { error, subscriber }));\n }\n}\nfunction dispatch({ error, subscriber }) {\n subscriber.error(error);\n}\n","import { Observable } from '../Observable';\nimport { async } from '../scheduler/async';\nimport { isNumeric } from '../util/isNumeric';\nimport { isScheduler } from '../util/isScheduler';\nexport function timer(dueTime = 0, periodOrScheduler, scheduler) {\n let period = -1;\n if (isNumeric(periodOrScheduler)) {\n period = Number(periodOrScheduler) < 1 && 1 || Number(periodOrScheduler);\n }\n else if (isScheduler(periodOrScheduler)) {\n scheduler = periodOrScheduler;\n }\n if (!isScheduler(scheduler)) {\n scheduler = async;\n }\n return new Observable(subscriber => {\n const due = isNumeric(dueTime)\n ? dueTime\n : (+dueTime - scheduler.now());\n return scheduler.schedule(dispatch, due, {\n index: 0, period, subscriber\n });\n });\n}\nfunction dispatch(state) {\n const { index, period, subscriber } = state;\n subscriber.next(index);\n if (subscriber.closed) {\n return;\n }\n else if (period === -1) {\n return subscriber.complete();\n }\n state.index = index + 1;\n this.schedule(state, period);\n}\n","import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function catchError(selector) {\n return function catchErrorOperatorFunction(source) {\n const operator = new CatchOperator(selector);\n const caught = source.lift(operator);\n return (operator.caught = caught);\n };\n}\nclass CatchOperator {\n constructor(selector) {\n this.selector = selector;\n }\n call(subscriber, source) {\n return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));\n }\n}\nclass CatchSubscriber extends SimpleOuterSubscriber {\n constructor(destination, selector, caught) {\n super(destination);\n this.selector = selector;\n this.caught = caught;\n }\n error(err) {\n if (!this.isStopped) {\n let result;\n try {\n result = this.selector(err, this.caught);\n }\n catch (err2) {\n super.error(err2);\n return;\n }\n this._unsubscribeAndRecycle();\n const innerSubscriber = new SimpleInnerSubscriber(this);\n this.add(innerSubscriber);\n const innerSubscription = innerSubscribe(result, innerSubscriber);\n if (innerSubscription !== innerSubscriber) {\n this.add(innerSubscription);\n }\n }\n }\n}\n","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n return mergeAll(1);\n}\n","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n return mergeMap(project, resultSelector, 1);\n}\n","import { Subscriber } from '../Subscriber';\nexport function defaultIfEmpty(defaultValue = null) {\n return (source) => source.lift(new DefaultIfEmptyOperator(defaultValue));\n}\nclass DefaultIfEmptyOperator {\n constructor(defaultValue) {\n this.defaultValue = defaultValue;\n }\n call(subscriber, source) {\n return source.subscribe(new DefaultIfEmptySubscriber(subscriber, this.defaultValue));\n }\n}\nclass DefaultIfEmptySubscriber extends Subscriber {\n constructor(destination, defaultValue) {\n super(destination);\n this.defaultValue = defaultValue;\n this.isEmpty = true;\n }\n _next(value) {\n this.isEmpty = false;\n this.destination.next(value);\n }\n _complete() {\n if (this.isEmpty) {\n this.destination.next(this.defaultValue);\n }\n this.destination.complete();\n }\n}\n","import { async } from '../scheduler/async';\nimport { isDate } from '../util/isDate';\nimport { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function delay(delay, scheduler = async) {\n const absoluteDelay = isDate(delay);\n const delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);\n return (source) => source.lift(new DelayOperator(delayFor, scheduler));\n}\nclass DelayOperator {\n constructor(delay, scheduler) {\n this.delay = delay;\n this.scheduler = scheduler;\n }\n call(subscriber, source) {\n return source.subscribe(new DelaySubscriber(subscriber, this.delay, this.scheduler));\n }\n}\nclass DelaySubscriber extends Subscriber {\n constructor(destination, delay, scheduler) {\n super(destination);\n this.delay = delay;\n this.scheduler = scheduler;\n this.queue = [];\n this.active = false;\n this.errored = false;\n }\n static dispatch(state) {\n const source = state.source;\n const queue = source.queue;\n const scheduler = state.scheduler;\n const destination = state.destination;\n while (queue.length > 0 && (queue[0].time - scheduler.now()) <= 0) {\n queue.shift().notification.observe(destination);\n }\n if (queue.length > 0) {\n const delay = Math.max(0, queue[0].time - scheduler.now());\n this.schedule(state, delay);\n }\n else {\n this.unsubscribe();\n source.active = false;\n }\n }\n _schedule(scheduler) {\n this.active = true;\n const destination = this.destination;\n destination.add(scheduler.schedule(DelaySubscriber.dispatch, this.delay, {\n source: this, destination: this.destination, scheduler: scheduler\n }));\n }\n scheduleNotification(notification) {\n if (this.errored === true) {\n return;\n }\n const scheduler = this.scheduler;\n const message = new DelayMessage(scheduler.now() + this.delay, notification);\n this.queue.push(message);\n if (this.active === false) {\n this._schedule(scheduler);\n }\n }\n _next(value) {\n this.scheduleNotification(Notification.createNext(value));\n }\n _error(err) {\n this.errored = true;\n this.queue = [];\n this.destination.error(err);\n this.unsubscribe();\n }\n _complete() {\n this.scheduleNotification(Notification.createComplete());\n this.unsubscribe();\n }\n}\nclass DelayMessage {\n constructor(time, notification) {\n this.time = time;\n this.notification = notification;\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n return (source) => source.lift(new DistinctUntilChangedOperator(compare, keySelector));\n}\nclass DistinctUntilChangedOperator {\n constructor(compare, keySelector) {\n this.compare = compare;\n this.keySelector = keySelector;\n }\n call(subscriber, source) {\n return source.subscribe(new DistinctUntilChangedSubscriber(subscriber, this.compare, this.keySelector));\n }\n}\nclass DistinctUntilChangedSubscriber extends Subscriber {\n constructor(destination, compare, keySelector) {\n super(destination);\n this.keySelector = keySelector;\n this.hasKey = false;\n if (typeof compare === 'function') {\n this.compare = compare;\n }\n }\n compare(x, y) {\n return x === y;\n }\n _next(value) {\n let key;\n try {\n const { keySelector } = this;\n key = keySelector ? keySelector(value) : value;\n }\n catch (err) {\n return this.destination.error(err);\n }\n let result = false;\n if (this.hasKey) {\n try {\n const { compare } = this;\n result = compare(this.key, key);\n }\n catch (err) {\n return this.destination.error(err);\n }\n }\n else {\n this.hasKey = true;\n }\n if (!result) {\n this.key = key;\n this.destination.next(value);\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function filter(predicate, thisArg) {\n return function filterOperatorFunction(source) {\n return source.lift(new FilterOperator(predicate, thisArg));\n };\n}\nclass FilterOperator {\n constructor(predicate, thisArg) {\n this.predicate = predicate;\n this.thisArg = thisArg;\n }\n call(subscriber, source) {\n return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));\n }\n}\nclass FilterSubscriber extends Subscriber {\n constructor(destination, predicate, thisArg) {\n super(destination);\n this.predicate = predicate;\n this.thisArg = thisArg;\n this.count = 0;\n }\n _next(value) {\n let result;\n try {\n result = this.predicate.call(this.thisArg, value, this.count++);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n if (result) {\n this.destination.next(value);\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nexport function finalize(callback) {\n return (source) => source.lift(new FinallyOperator(callback));\n}\nclass FinallyOperator {\n constructor(callback) {\n this.callback = callback;\n }\n call(subscriber, source) {\n return source.subscribe(new FinallySubscriber(subscriber, this.callback));\n }\n}\nclass FinallySubscriber extends Subscriber {\n constructor(destination, callback) {\n super(destination);\n this.add(new Subscription(callback));\n }\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { take } from './take';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { identity } from '../util/identity';\nexport function first(predicate, defaultValue) {\n const hasDefaultValue = arguments.length >= 2;\n return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, take(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { takeLast } from './takeLast';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { identity } from '../util/identity';\nexport function last(predicate, defaultValue) {\n const hasDefaultValue = arguments.length >= 2;\n return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, takeLast(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { Subscriber } from '../Subscriber';\nexport function map(project, thisArg) {\n return function mapOperation(source) {\n if (typeof project !== 'function') {\n throw new TypeError('argument is not a function. Are you looking for `mapTo()`?');\n }\n return source.lift(new MapOperator(project, thisArg));\n };\n}\nexport class MapOperator {\n constructor(project, thisArg) {\n this.project = project;\n this.thisArg = thisArg;\n }\n call(subscriber, source) {\n return source.subscribe(new MapSubscriber(subscriber, this.project, this.thisArg));\n }\n}\nclass MapSubscriber extends Subscriber {\n constructor(destination, project, thisArg) {\n super(destination);\n this.project = project;\n this.count = 0;\n this.thisArg = thisArg || this;\n }\n _next(value) {\n let result;\n try {\n result = this.project.call(this.thisArg, value, this.count++);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(result);\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function mapTo(value) {\n return (source) => source.lift(new MapToOperator(value));\n}\nclass MapToOperator {\n constructor(value) {\n this.value = value;\n }\n call(subscriber, source) {\n return source.subscribe(new MapToSubscriber(subscriber, this.value));\n }\n}\nclass MapToSubscriber extends Subscriber {\n constructor(destination, value) {\n super(destination);\n this.value = value;\n }\n _next(x) {\n this.destination.next(this.value);\n }\n}\n","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent = Number.POSITIVE_INFINITY) {\n return mergeMap(identity, concurrent);\n}\n","import { map } from './map';\nimport { from } from '../observable/from';\nimport { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function mergeMap(project, resultSelector, concurrent = Number.POSITIVE_INFINITY) {\n if (typeof resultSelector === 'function') {\n return (source) => source.pipe(mergeMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii))), concurrent));\n }\n else if (typeof resultSelector === 'number') {\n concurrent = resultSelector;\n }\n return (source) => source.lift(new MergeMapOperator(project, concurrent));\n}\nexport class MergeMapOperator {\n constructor(project, concurrent = Number.POSITIVE_INFINITY) {\n this.project = project;\n this.concurrent = concurrent;\n }\n call(observer, source) {\n return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));\n }\n}\nexport class MergeMapSubscriber extends SimpleOuterSubscriber {\n constructor(destination, project, concurrent = Number.POSITIVE_INFINITY) {\n super(destination);\n this.project = project;\n this.concurrent = concurrent;\n this.hasCompleted = false;\n this.buffer = [];\n this.active = 0;\n this.index = 0;\n }\n _next(value) {\n if (this.active < this.concurrent) {\n this._tryNext(value);\n }\n else {\n this.buffer.push(value);\n }\n }\n _tryNext(value) {\n let result;\n const index = this.index++;\n try {\n result = this.project(value, index);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.active++;\n this._innerSub(result);\n }\n _innerSub(ish) {\n const innerSubscriber = new SimpleInnerSubscriber(this);\n const destination = this.destination;\n destination.add(innerSubscriber);\n const innerSubscription = innerSubscribe(ish, innerSubscriber);\n if (innerSubscription !== innerSubscriber) {\n destination.add(innerSubscription);\n }\n }\n _complete() {\n this.hasCompleted = true;\n if (this.active === 0 && this.buffer.length === 0) {\n this.destination.complete();\n }\n this.unsubscribe();\n }\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n notifyComplete() {\n const buffer = this.buffer;\n this.active--;\n if (buffer.length > 0) {\n this._next(buffer.shift());\n }\n else if (this.active === 0 && this.hasCompleted) {\n this.destination.complete();\n }\n }\n}\nexport const flatMap = mergeMap;\n","import { connectableObservableDescriptor } from '../observable/ConnectableObservable';\nexport function multicast(subjectOrSubjectFactory, selector) {\n return function multicastOperatorFunction(source) {\n let subjectFactory;\n if (typeof subjectOrSubjectFactory === 'function') {\n subjectFactory = subjectOrSubjectFactory;\n }\n else {\n subjectFactory = function subjectFactory() {\n return subjectOrSubjectFactory;\n };\n }\n if (typeof selector === 'function') {\n return source.lift(new MulticastOperator(subjectFactory, selector));\n }\n const connectable = Object.create(source, connectableObservableDescriptor);\n connectable.source = source;\n connectable.subjectFactory = subjectFactory;\n return connectable;\n };\n}\nexport class MulticastOperator {\n constructor(subjectFactory, selector) {\n this.subjectFactory = subjectFactory;\n this.selector = selector;\n }\n call(subscriber, source) {\n const { selector } = this;\n const subject = this.subjectFactory();\n const subscription = selector(subject).subscribe(subscriber);\n subscription.add(source.subscribe(subject));\n return subscription;\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function observeOn(scheduler, delay = 0) {\n return function observeOnOperatorFunction(source) {\n return source.lift(new ObserveOnOperator(scheduler, delay));\n };\n}\nexport class ObserveOnOperator {\n constructor(scheduler, delay = 0) {\n this.scheduler = scheduler;\n this.delay = delay;\n }\n call(subscriber, source) {\n return source.subscribe(new ObserveOnSubscriber(subscriber, this.scheduler, this.delay));\n }\n}\nexport class ObserveOnSubscriber extends Subscriber {\n constructor(destination, scheduler, delay = 0) {\n super(destination);\n this.scheduler = scheduler;\n this.delay = delay;\n }\n static dispatch(arg) {\n const { notification, destination } = arg;\n notification.observe(destination);\n this.unsubscribe();\n }\n scheduleMessage(notification) {\n const destination = this.destination;\n destination.add(this.scheduler.schedule(ObserveOnSubscriber.dispatch, this.delay, new ObserveOnMessage(notification, this.destination)));\n }\n _next(value) {\n this.scheduleMessage(Notification.createNext(value));\n }\n _error(err) {\n this.scheduleMessage(Notification.createError(err));\n this.unsubscribe();\n }\n _complete() {\n this.scheduleMessage(Notification.createComplete());\n this.unsubscribe();\n }\n}\nexport class ObserveOnMessage {\n constructor(notification, destination) {\n this.notification = notification;\n this.destination = destination;\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function refCount() {\n return function refCountOperatorFunction(source) {\n return source.lift(new RefCountOperator(source));\n };\n}\nclass RefCountOperator {\n constructor(connectable) {\n this.connectable = connectable;\n }\n call(subscriber, source) {\n const { connectable } = this;\n connectable._refCount++;\n const refCounter = new RefCountSubscriber(subscriber, connectable);\n const subscription = source.subscribe(refCounter);\n if (!refCounter.closed) {\n refCounter.connection = connectable.connect();\n }\n return subscription;\n }\n}\nclass RefCountSubscriber extends Subscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _unsubscribe() {\n const { connectable } = this;\n if (!connectable) {\n this.connection = null;\n return;\n }\n this.connectable = null;\n const refCount = connectable._refCount;\n if (refCount <= 0) {\n this.connection = null;\n return;\n }\n connectable._refCount = refCount - 1;\n if (refCount > 1) {\n this.connection = null;\n return;\n }\n const { connection } = this;\n const sharedConnection = connectable._connection;\n this.connection = null;\n if (sharedConnection && (!connection || sharedConnection === connection)) {\n sharedConnection.unsubscribe();\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function scan(accumulator, seed) {\n let hasSeed = false;\n if (arguments.length >= 2) {\n hasSeed = true;\n }\n return function scanOperatorFunction(source) {\n return source.lift(new ScanOperator(accumulator, seed, hasSeed));\n };\n}\nclass ScanOperator {\n constructor(accumulator, seed, hasSeed = false) {\n this.accumulator = accumulator;\n this.seed = seed;\n this.hasSeed = hasSeed;\n }\n call(subscriber, source) {\n return source.subscribe(new ScanSubscriber(subscriber, this.accumulator, this.seed, this.hasSeed));\n }\n}\nclass ScanSubscriber extends Subscriber {\n constructor(destination, accumulator, _seed, hasSeed) {\n super(destination);\n this.accumulator = accumulator;\n this._seed = _seed;\n this.hasSeed = hasSeed;\n this.index = 0;\n }\n get seed() {\n return this._seed;\n }\n set seed(value) {\n this.hasSeed = true;\n this._seed = value;\n }\n _next(value) {\n if (!this.hasSeed) {\n this.seed = value;\n this.destination.next(value);\n }\n else {\n return this._tryNext(value);\n }\n }\n _tryNext(value) {\n const index = this.index++;\n let result;\n try {\n result = this.accumulator(this.seed, value, index);\n }\n catch (err) {\n this.destination.error(err);\n }\n this.seed = result;\n this.destination.next(result);\n }\n}\n","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n return new Subject();\n}\nexport function share() {\n return (source) => refCount()(multicast(shareSubjectFactory)(source));\n}\n","import { ReplaySubject } from '../ReplaySubject';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n let config;\n if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n config = configOrBufferSize;\n }\n else {\n config = {\n bufferSize: configOrBufferSize,\n windowTime,\n refCount: false,\n scheduler,\n };\n }\n return (source) => source.lift(shareReplayOperator(config));\n}\nfunction shareReplayOperator({ bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, refCount: useRefCount, scheduler, }) {\n let subject;\n let refCount = 0;\n let subscription;\n let hasError = false;\n let isComplete = false;\n return function shareReplayOperation(source) {\n refCount++;\n let innerSub;\n if (!subject || hasError) {\n hasError = false;\n subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n innerSub = subject.subscribe(this);\n subscription = source.subscribe({\n next(value) {\n subject.next(value);\n },\n error(err) {\n hasError = true;\n subject.error(err);\n },\n complete() {\n isComplete = true;\n subscription = undefined;\n subject.complete();\n },\n });\n if (isComplete) {\n subscription = undefined;\n }\n }\n else {\n innerSub = subject.subscribe(this);\n }\n this.add(() => {\n refCount--;\n innerSub.unsubscribe();\n innerSub = undefined;\n if (subscription && !isComplete && useRefCount && refCount === 0) {\n subscription.unsubscribe();\n subscription = undefined;\n subject = undefined;\n }\n });\n };\n}\n","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith(...array) {\n const scheduler = array[array.length - 1];\n if (isScheduler(scheduler)) {\n array.pop();\n return (source) => concat(array, source, scheduler);\n }\n else {\n return (source) => concat(array, source);\n }\n}\n","import { map } from './map';\nimport { from } from '../observable/from';\nimport { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function switchMap(project, resultSelector) {\n if (typeof resultSelector === 'function') {\n return (source) => source.pipe(switchMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));\n }\n return (source) => source.lift(new SwitchMapOperator(project));\n}\nclass SwitchMapOperator {\n constructor(project) {\n this.project = project;\n }\n call(subscriber, source) {\n return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));\n }\n}\nclass SwitchMapSubscriber extends SimpleOuterSubscriber {\n constructor(destination, project) {\n super(destination);\n this.project = project;\n this.index = 0;\n }\n _next(value) {\n let result;\n const index = this.index++;\n try {\n result = this.project(value, index);\n }\n catch (error) {\n this.destination.error(error);\n return;\n }\n this._innerSub(result);\n }\n _innerSub(result) {\n const innerSubscription = this.innerSubscription;\n if (innerSubscription) {\n innerSubscription.unsubscribe();\n }\n const innerSubscriber = new SimpleInnerSubscriber(this);\n const destination = this.destination;\n destination.add(innerSubscriber);\n this.innerSubscription = innerSubscribe(result, innerSubscriber);\n if (this.innerSubscription !== innerSubscriber) {\n destination.add(this.innerSubscription);\n }\n }\n _complete() {\n const { innerSubscription } = this;\n if (!innerSubscription || innerSubscription.closed) {\n super._complete();\n }\n this.unsubscribe();\n }\n _unsubscribe() {\n this.innerSubscription = undefined;\n }\n notifyComplete() {\n this.innerSubscription = undefined;\n if (this.isStopped) {\n super._complete();\n }\n }\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { empty } from '../observable/empty';\nexport function take(count) {\n return (source) => {\n if (count === 0) {\n return empty();\n }\n else {\n return source.lift(new TakeOperator(count));\n }\n };\n}\nclass TakeOperator {\n constructor(total) {\n this.total = total;\n if (this.total < 0) {\n throw new ArgumentOutOfRangeError;\n }\n }\n call(subscriber, source) {\n return source.subscribe(new TakeSubscriber(subscriber, this.total));\n }\n}\nclass TakeSubscriber extends Subscriber {\n constructor(destination, total) {\n super(destination);\n this.total = total;\n this.count = 0;\n }\n _next(value) {\n const total = this.total;\n const count = ++this.count;\n if (count <= total) {\n this.destination.next(value);\n if (count === total) {\n this.destination.complete();\n this.unsubscribe();\n }\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { empty } from '../observable/empty';\nexport function takeLast(count) {\n return function takeLastOperatorFunction(source) {\n if (count === 0) {\n return empty();\n }\n else {\n return source.lift(new TakeLastOperator(count));\n }\n };\n}\nclass TakeLastOperator {\n constructor(total) {\n this.total = total;\n if (this.total < 0) {\n throw new ArgumentOutOfRangeError;\n }\n }\n call(subscriber, source) {\n return source.subscribe(new TakeLastSubscriber(subscriber, this.total));\n }\n}\nclass TakeLastSubscriber extends Subscriber {\n constructor(destination, total) {\n super(destination);\n this.total = total;\n this.ring = new Array();\n this.count = 0;\n }\n _next(value) {\n const ring = this.ring;\n const total = this.total;\n const count = this.count++;\n if (ring.length < total) {\n ring.push(value);\n }\n else {\n const index = count % total;\n ring[index] = value;\n }\n }\n _complete() {\n const destination = this.destination;\n let count = this.count;\n if (count > 0) {\n const total = this.count >= this.total ? this.total : this.count;\n const ring = this.ring;\n for (let i = 0; i < total; i++) {\n const idx = (count++) % total;\n destination.next(ring[idx]);\n }\n }\n destination.complete();\n }\n}\n","import { innerSubscribe, SimpleInnerSubscriber, SimpleOuterSubscriber } from '../innerSubscribe';\nexport function takeUntil(notifier) {\n return (source) => source.lift(new TakeUntilOperator(notifier));\n}\nclass TakeUntilOperator {\n constructor(notifier) {\n this.notifier = notifier;\n }\n call(subscriber, source) {\n const takeUntilSubscriber = new TakeUntilSubscriber(subscriber);\n const notifierSubscription = innerSubscribe(this.notifier, new SimpleInnerSubscriber(takeUntilSubscriber));\n if (notifierSubscription && !takeUntilSubscriber.seenValue) {\n takeUntilSubscriber.add(notifierSubscription);\n return source.subscribe(takeUntilSubscriber);\n }\n return takeUntilSubscriber;\n }\n}\nclass TakeUntilSubscriber extends SimpleOuterSubscriber {\n constructor(destination) {\n super(destination);\n this.seenValue = false;\n }\n notifyNext() {\n this.seenValue = true;\n this.complete();\n }\n notifyComplete() {\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function takeWhile(predicate, inclusive = false) {\n return (source) => source.lift(new TakeWhileOperator(predicate, inclusive));\n}\nclass TakeWhileOperator {\n constructor(predicate, inclusive) {\n this.predicate = predicate;\n this.inclusive = inclusive;\n }\n call(subscriber, source) {\n return source.subscribe(new TakeWhileSubscriber(subscriber, this.predicate, this.inclusive));\n }\n}\nclass TakeWhileSubscriber extends Subscriber {\n constructor(destination, predicate, inclusive) {\n super(destination);\n this.predicate = predicate;\n this.inclusive = inclusive;\n this.index = 0;\n }\n _next(value) {\n const destination = this.destination;\n let result;\n try {\n result = this.predicate(value, this.index++);\n }\n catch (err) {\n destination.error(err);\n return;\n }\n this.nextOrComplete(value, result);\n }\n nextOrComplete(value, predicateResult) {\n const destination = this.destination;\n if (Boolean(predicateResult)) {\n destination.next(value);\n }\n else {\n if (this.inclusive) {\n destination.next(value);\n }\n destination.complete();\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { noop } from '../util/noop';\nimport { isFunction } from '../util/isFunction';\nexport function tap(nextOrObserver, error, complete) {\n return function tapOperatorFunction(source) {\n return source.lift(new DoOperator(nextOrObserver, error, complete));\n };\n}\nclass DoOperator {\n constructor(nextOrObserver, error, complete) {\n this.nextOrObserver = nextOrObserver;\n this.error = error;\n this.complete = complete;\n }\n call(subscriber, source) {\n return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));\n }\n}\nclass TapSubscriber extends Subscriber {\n constructor(destination, observerOrNext, error, complete) {\n super(destination);\n this._tapNext = noop;\n this._tapError = noop;\n this._tapComplete = noop;\n this._tapError = error || noop;\n this._tapComplete = complete || noop;\n if (isFunction(observerOrNext)) {\n this._context = this;\n this._tapNext = observerOrNext;\n }\n else if (observerOrNext) {\n this._context = observerOrNext;\n this._tapNext = observerOrNext.next || noop;\n this._tapError = observerOrNext.error || noop;\n this._tapComplete = observerOrNext.complete || noop;\n }\n }\n _next(value) {\n try {\n this._tapNext.call(this._context, value);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(value);\n }\n _error(err) {\n try {\n this._tapError.call(this._context, err);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.error(err);\n }\n _complete() {\n try {\n this._tapComplete.call(this._context);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n return this.destination.complete();\n }\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { Subscriber } from '../Subscriber';\nexport function throwIfEmpty(errorFactory = defaultErrorFactory) {\n return (source) => {\n return source.lift(new ThrowIfEmptyOperator(errorFactory));\n };\n}\nclass ThrowIfEmptyOperator {\n constructor(errorFactory) {\n this.errorFactory = errorFactory;\n }\n call(subscriber, source) {\n return source.subscribe(new ThrowIfEmptySubscriber(subscriber, this.errorFactory));\n }\n}\nclass ThrowIfEmptySubscriber extends Subscriber {\n constructor(destination, errorFactory) {\n super(destination);\n this.errorFactory = errorFactory;\n this.hasValue = false;\n }\n _next(value) {\n this.hasValue = true;\n this.destination.next(value);\n }\n _complete() {\n if (!this.hasValue) {\n let err;\n try {\n err = this.errorFactory();\n }\n catch (e) {\n err = e;\n }\n this.destination.error(err);\n }\n else {\n return this.destination.complete();\n }\n }\n}\nfunction defaultErrorFactory() {\n return new EmptyError();\n}\n","import { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function withLatestFrom(...args) {\n return (source) => {\n let project;\n if (typeof args[args.length - 1] === 'function') {\n project = args.pop();\n }\n const observables = args;\n return source.lift(new WithLatestFromOperator(observables, project));\n };\n}\nclass WithLatestFromOperator {\n constructor(observables, project) {\n this.observables = observables;\n this.project = project;\n }\n call(subscriber, source) {\n return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));\n }\n}\nclass WithLatestFromSubscriber extends OuterSubscriber {\n constructor(destination, observables, project) {\n super(destination);\n this.observables = observables;\n this.project = project;\n this.toRespond = [];\n const len = observables.length;\n this.values = new Array(len);\n for (let i = 0; i < len; i++) {\n this.toRespond.push(i);\n }\n for (let i = 0; i < len; i++) {\n let observable = observables[i];\n this.add(subscribeToResult(this, observable, undefined, i));\n }\n }\n notifyNext(_outerValue, innerValue, outerIndex) {\n this.values[outerIndex] = innerValue;\n const toRespond = this.toRespond;\n if (toRespond.length > 0) {\n const found = toRespond.indexOf(outerIndex);\n if (found !== -1) {\n toRespond.splice(found, 1);\n }\n }\n }\n notifyComplete() {\n }\n _next(value) {\n if (this.toRespond.length === 0) {\n const args = [value, ...this.values];\n if (this.project) {\n this._tryProject(args);\n }\n else {\n this.destination.next(args);\n }\n }\n }\n _tryProject(args) {\n let result;\n try {\n result = this.project.apply(this, args);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(result);\n }\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n let i = 0;\n sub.add(scheduler.schedule(function () {\n if (i === input.length) {\n subscriber.complete();\n return;\n }\n subscriber.next(input[i++]);\n if (!subscriber.closed) {\n sub.add(this.schedule());\n }\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(subscriber => {\n const sub = new Subscription();\n let iterator;\n sub.add(() => {\n if (iterator && typeof iterator.return === 'function') {\n iterator.return();\n }\n });\n sub.add(scheduler.schedule(() => {\n iterator = input[Symbol_iterator]();\n sub.add(scheduler.schedule(function () {\n if (subscriber.closed) {\n return;\n }\n let value;\n let done;\n try {\n const result = iterator.next();\n value = result.value;\n done = result.done;\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (done) {\n subscriber.complete();\n }\n else {\n subscriber.next(value);\n this.schedule();\n }\n }));\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n sub.add(scheduler.schedule(() => {\n const observable = input[Symbol_observable]();\n sub.add(observable.subscribe({\n next(value) { sub.add(scheduler.schedule(() => subscriber.next(value))); },\n error(err) { sub.add(scheduler.schedule(() => subscriber.error(err))); },\n complete() { sub.add(scheduler.schedule(() => subscriber.complete())); },\n }));\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n sub.add(scheduler.schedule(() => input.then(value => {\n sub.add(scheduler.schedule(() => {\n subscriber.next(value);\n sub.add(scheduler.schedule(() => subscriber.complete()));\n }));\n }, err => {\n sub.add(scheduler.schedule(() => subscriber.error(err)));\n })));\n return sub;\n });\n}\n","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nexport function scheduled(input, scheduler) {\n if (input != null) {\n if (isInteropObservable(input)) {\n return scheduleObservable(input, scheduler);\n }\n else if (isPromise(input)) {\n return schedulePromise(input, scheduler);\n }\n else if (isArrayLike(input)) {\n return scheduleArray(input, scheduler);\n }\n else if (isIterable(input) || typeof input === 'string') {\n return scheduleIterable(input, scheduler);\n }\n }\n throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n","import { Subscription } from '../Subscription';\nexport class Action extends Subscription {\n constructor(scheduler, work) {\n super();\n }\n schedule(state, delay = 0) {\n return this;\n }\n}\n","import { Action } from './Action';\nexport class AsyncAction extends Action {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n this.pending = false;\n }\n schedule(state, delay = 0) {\n if (this.closed) {\n return this;\n }\n this.state = state;\n const id = this.id;\n const scheduler = this.scheduler;\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n this.pending = true;\n this.delay = delay;\n this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n return this;\n }\n requestAsyncId(scheduler, id, delay = 0) {\n return setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n recycleAsyncId(scheduler, id, delay = 0) {\n if (delay !== null && this.delay === delay && this.pending === false) {\n return id;\n }\n clearInterval(id);\n return undefined;\n }\n execute(state, delay) {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n }\n else if (this.pending === false && this.id != null) {\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n _execute(state, delay) {\n let errored = false;\n let errorValue = undefined;\n try {\n this.work(state);\n }\n catch (e) {\n errored = true;\n errorValue = !!e && e || new Error(e);\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n _unsubscribe() {\n const id = this.id;\n const scheduler = this.scheduler;\n const actions = scheduler.actions;\n const index = actions.indexOf(this);\n this.work = null;\n this.state = null;\n this.pending = false;\n this.scheduler = null;\n if (index !== -1) {\n actions.splice(index, 1);\n }\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n this.delay = null;\n }\n}\n","import { Scheduler } from '../Scheduler';\nexport class AsyncScheduler extends Scheduler {\n constructor(SchedulerAction, now = Scheduler.now) {\n super(SchedulerAction, () => {\n if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n return AsyncScheduler.delegate.now();\n }\n else {\n return now();\n }\n });\n this.actions = [];\n this.active = false;\n this.scheduled = undefined;\n }\n schedule(work, delay = 0, state) {\n if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n return AsyncScheduler.delegate.schedule(work, delay, state);\n }\n else {\n return super.schedule(work, delay, state);\n }\n }\n flush(action) {\n const { actions } = this;\n if (this.active) {\n actions.push(action);\n return;\n }\n let error;\n this.active = true;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (action = actions.shift());\n this.active = false;\n if (error) {\n while (action = actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n","import { AsyncAction } from './AsyncAction';\nexport class QueueAction extends AsyncAction {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n }\n schedule(state, delay = 0) {\n if (delay > 0) {\n return super.schedule(state, delay);\n }\n this.delay = delay;\n this.state = state;\n this.scheduler.flush(this);\n return this;\n }\n execute(state, delay) {\n return (delay > 0 || this.closed) ?\n super.execute(state, delay) :\n this._execute(state, delay);\n }\n requestAsyncId(scheduler, id, delay = 0) {\n if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n return scheduler.flush(this);\n }\n}\n","import { AsyncScheduler } from './AsyncScheduler';\nexport class QueueScheduler extends AsyncScheduler {\n}\n","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\nexport const async = asyncScheduler;\n","import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\nexport const queueScheduler = new QueueScheduler(QueueAction);\nexport const queue = queueScheduler;\n","export function getSymbolIterator() {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator';\n }\n return Symbol.iterator;\n}\nexport const iterator = getSymbolIterator();\nexport const $$iterator = iterator;\n","export const observable = (() => typeof Symbol === 'function' && Symbol.observable || '@@observable')();\n","export const rxSubscriber = (() => typeof Symbol === 'function'\n ? Symbol('rxSubscriber')\n : '@@rxSubscriber_' + Math.random())();\nexport const $$rxSubscriber = rxSubscriber;\n","const ArgumentOutOfRangeErrorImpl = (() => {\n function ArgumentOutOfRangeErrorImpl() {\n Error.call(this);\n this.message = 'argument out of range';\n this.name = 'ArgumentOutOfRangeError';\n return this;\n }\n ArgumentOutOfRangeErrorImpl.prototype = Object.create(Error.prototype);\n return ArgumentOutOfRangeErrorImpl;\n})();\nexport const ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;\n","const EmptyErrorImpl = (() => {\n function EmptyErrorImpl() {\n Error.call(this);\n this.message = 'no elements in sequence';\n this.name = 'EmptyError';\n return this;\n }\n EmptyErrorImpl.prototype = Object.create(Error.prototype);\n return EmptyErrorImpl;\n})();\nexport const EmptyError = EmptyErrorImpl;\n","const ObjectUnsubscribedErrorImpl = (() => {\n function ObjectUnsubscribedErrorImpl() {\n Error.call(this);\n this.message = 'object unsubscribed';\n this.name = 'ObjectUnsubscribedError';\n return this;\n }\n ObjectUnsubscribedErrorImpl.prototype = Object.create(Error.prototype);\n return ObjectUnsubscribedErrorImpl;\n})();\nexport const ObjectUnsubscribedError = ObjectUnsubscribedErrorImpl;\n","const UnsubscriptionErrorImpl = (() => {\n function UnsubscriptionErrorImpl(errors) {\n Error.call(this);\n this.message = errors ?\n `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n ')}` : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n return this;\n }\n UnsubscriptionErrorImpl.prototype = Object.create(Error.prototype);\n return UnsubscriptionErrorImpl;\n})();\nexport const UnsubscriptionError = UnsubscriptionErrorImpl;\n","import { Subscriber } from '../Subscriber';\nexport function canReportError(observer) {\n while (observer) {\n const { closed, destination, isStopped } = observer;\n if (closed || isStopped) {\n return false;\n }\n else if (destination && destination instanceof Subscriber) {\n observer = destination;\n }\n else {\n observer = null;\n }\n }\n return true;\n}\n","export function hostReportError(err) {\n setTimeout(() => { throw err; }, 0);\n}\n","export function identity(x) {\n return x;\n}\n","export const isArray = (() => Array.isArray || ((x) => x && typeof x.length === 'number'))();\n","export const isArrayLike = ((x) => x && typeof x.length === 'number' && typeof x !== 'function');\n","export function isDate(value) {\n return value instanceof Date && !isNaN(+value);\n}\n","export function isFunction(x) {\n return typeof x === 'function';\n}\n","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n return input && typeof input[Symbol_observable] === 'function';\n}\n","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n return input && typeof input[Symbol_iterator] === 'function';\n}\n","import { isArray } from './isArray';\nexport function isNumeric(val) {\n return !isArray(val) && (val - parseFloat(val) + 1) >= 0;\n}\n","export function isObject(x) {\n return x !== null && typeof x === 'object';\n}\n","import { Observable } from '../Observable';\nexport function isObservable(obj) {\n return !!obj && (obj instanceof Observable || (typeof obj.lift === 'function' && typeof obj.subscribe === 'function'));\n}\n","export function isPromise(value) {\n return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n","export function isScheduler(value) {\n return value && typeof value.schedule === 'function';\n}\n","export function noop() { }\n","import { identity } from './identity';\nexport function pipe(...fns) {\n return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n if (fns.length === 0) {\n return identity;\n }\n if (fns.length === 1) {\n return fns[0];\n }\n return function piped(input) {\n return fns.reduce((prev, fn) => fn(prev), input);\n };\n}\n","import { subscribeToArray } from './subscribeToArray';\nimport { subscribeToPromise } from './subscribeToPromise';\nimport { subscribeToIterable } from './subscribeToIterable';\nimport { subscribeToObservable } from './subscribeToObservable';\nimport { isArrayLike } from './isArrayLike';\nimport { isPromise } from './isPromise';\nimport { isObject } from './isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeTo = (result) => {\n if (!!result && typeof result[Symbol_observable] === 'function') {\n return subscribeToObservable(result);\n }\n else if (isArrayLike(result)) {\n return subscribeToArray(result);\n }\n else if (isPromise(result)) {\n return subscribeToPromise(result);\n }\n else if (!!result && typeof result[Symbol_iterator] === 'function') {\n return subscribeToIterable(result);\n }\n else {\n const value = isObject(result) ? 'an invalid object' : `'${result}'`;\n const msg = `You provided ${value} where a stream was expected.`\n + ' You can provide an Observable, Promise, Array, or Iterable.';\n throw new TypeError(msg);\n }\n};\n","export const subscribeToArray = (array) => (subscriber) => {\n for (let i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n subscriber.next(array[i]);\n }\n subscriber.complete();\n};\n","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport const subscribeToIterable = (iterable) => (subscriber) => {\n const iterator = iterable[Symbol_iterator]();\n do {\n let item;\n try {\n item = iterator.next();\n }\n catch (err) {\n subscriber.error(err);\n return subscriber;\n }\n if (item.done) {\n subscriber.complete();\n break;\n }\n subscriber.next(item.value);\n if (subscriber.closed) {\n break;\n }\n } while (true);\n if (typeof iterator.return === 'function') {\n subscriber.add(() => {\n if (iterator.return) {\n iterator.return();\n }\n });\n }\n return subscriber;\n};\n","import { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeToObservable = (obj) => (subscriber) => {\n const obs = obj[Symbol_observable]();\n if (typeof obs.subscribe !== 'function') {\n throw new TypeError('Provided object does not correctly implement Symbol.observable');\n }\n else {\n return obs.subscribe(subscriber);\n }\n};\n","import { hostReportError } from './hostReportError';\nexport const subscribeToPromise = (promise) => (subscriber) => {\n promise.then((value) => {\n if (!subscriber.closed) {\n subscriber.next(value);\n subscriber.complete();\n }\n }, (err) => subscriber.error(err))\n .then(null, hostReportError);\n return subscriber;\n};\n","import { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeTo } from './subscribeTo';\nimport { Observable } from '../Observable';\nexport function subscribeToResult(outerSubscriber, result, outerValue, outerIndex, innerSubscriber = new InnerSubscriber(outerSubscriber, outerValue, outerIndex)) {\n if (innerSubscriber.closed) {\n return undefined;\n }\n if (result instanceof Observable) {\n return result.subscribe(innerSubscriber);\n }\n return subscribeTo(result)(innerSubscriber);\n}\n","import { Subscriber } from '../Subscriber';\nimport { rxSubscriber as rxSubscriberSymbol } from '../symbol/rxSubscriber';\nimport { empty as emptyObserver } from '../Observer';\nexport function toSubscriber(nextOrObserver, error, complete) {\n if (nextOrObserver) {\n if (nextOrObserver instanceof Subscriber) {\n return nextOrObserver;\n }\n if (nextOrObserver[rxSubscriberSymbol]) {\n return nextOrObserver[rxSubscriberSymbol]();\n }\n }\n if (!nextOrObserver && !error && !complete) {\n return new Subscriber(emptyObserver);\n }\n return new Subscriber(nextOrObserver, error, complete);\n}\n","/*! https://mths.be/punycode v1.3.2 by @mathias */\n;(function(root) {\n\n\t/** Detect free variables */\n\tvar freeExports = typeof exports == 'object' && exports &&\n\t\t!exports.nodeType && exports;\n\tvar freeModule = typeof module == 'object' && module &&\n\t\t!module.nodeType && module;\n\tvar freeGlobal = typeof global == 'object' && global;\n\tif (\n\t\tfreeGlobal.global === freeGlobal ||\n\t\tfreeGlobal.window === freeGlobal ||\n\t\tfreeGlobal.self === freeGlobal\n\t) {\n\t\troot = freeGlobal;\n\t}\n\n\t/**\n\t * The `punycode` object.\n\t * @name punycode\n\t * @type Object\n\t */\n\tvar punycode,\n\n\t/** Highest positive signed 32-bit float value */\n\tmaxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1\n\n\t/** Bootstring parameters */\n\tbase = 36,\n\ttMin = 1,\n\ttMax = 26,\n\tskew = 38,\n\tdamp = 700,\n\tinitialBias = 72,\n\tinitialN = 128, // 0x80\n\tdelimiter = '-', // '\\x2D'\n\n\t/** Regular expressions */\n\tregexPunycode = /^xn--/,\n\tregexNonASCII = /[^\\x20-\\x7E]/, // unprintable ASCII chars + non-ASCII chars\n\tregexSeparators = /[\\x2E\\u3002\\uFF0E\\uFF61]/g, // RFC 3490 separators\n\n\t/** Error messages */\n\terrors = {\n\t\t'overflow': 'Overflow: input needs wider integers to process',\n\t\t'not-basic': 'Illegal input >= 0x80 (not a basic code point)',\n\t\t'invalid-input': 'Invalid input'\n\t},\n\n\t/** Convenience shortcuts */\n\tbaseMinusTMin = base - tMin,\n\tfloor = Math.floor,\n\tstringFromCharCode = String.fromCharCode,\n\n\t/** Temporary variable */\n\tkey;\n\n\t/*--------------------------------------------------------------------------*/\n\n\t/**\n\t * A generic error utility function.\n\t * @private\n\t * @param {String} type The error type.\n\t * @returns {Error} Throws a `RangeError` with the applicable error message.\n\t */\n\tfunction error(type) {\n\t\tthrow RangeError(errors[type]);\n\t}\n\n\t/**\n\t * A generic `Array#map` utility function.\n\t * @private\n\t * @param {Array} array The array to iterate over.\n\t * @param {Function} callback The function that gets called for every array\n\t * item.\n\t * @returns {Array} A new array of values returned by the callback function.\n\t */\n\tfunction map(array, fn) {\n\t\tvar length = array.length;\n\t\tvar result = [];\n\t\twhile (length--) {\n\t\t\tresult[length] = fn(array[length]);\n\t\t}\n\t\treturn result;\n\t}\n\n\t/**\n\t * A simple `Array#map`-like wrapper to work with domain name strings or email\n\t * addresses.\n\t * @private\n\t * @param {String} domain The domain name or email address.\n\t * @param {Function} callback The function that gets called for every\n\t * character.\n\t * @returns {Array} A new string of characters returned by the callback\n\t * function.\n\t */\n\tfunction mapDomain(string, fn) {\n\t\tvar parts = string.split('@');\n\t\tvar result = '';\n\t\tif (parts.length > 1) {\n\t\t\t// In email addresses, only the domain name should be punycoded. Leave\n\t\t\t// the local part (i.e. everything up to `@`) intact.\n\t\t\tresult = parts[0] + '@';\n\t\t\tstring = parts[1];\n\t\t}\n\t\t// Avoid `split(regex)` for IE8 compatibility. See #17.\n\t\tstring = string.replace(regexSeparators, '\\x2E');\n\t\tvar labels = string.split('.');\n\t\tvar encoded = map(labels, fn).join('.');\n\t\treturn result + encoded;\n\t}\n\n\t/**\n\t * Creates an array containing the numeric code points of each Unicode\n\t * character in the string. While JavaScript uses UCS-2 internally,\n\t * this function will convert a pair of surrogate halves (each of which\n\t * UCS-2 exposes as separate characters) into a single code point,\n\t * matching UTF-16.\n\t * @see `punycode.ucs2.encode`\n\t * @see \n
\n [AnimationBuilder.build](api/animations/AnimationBuilder#build)() method\n * to create a programmatic animation. The method returns an `AnimationFactory` instance.\n *\n * 2. Use the factory object to create an `AnimationPlayer` and attach it to a DOM element.\n *\n * 3. Use the player object to control the animation programmatically.\n *\n * For example:\n *\n * ```ts\n * // import the service from BrowserAnimationsModule\n * import {AnimationBuilder} from '@angular/animations';\n * // require the service as a dependency\n * class MyCmp {\n * constructor(private _builder: AnimationBuilder) {}\n *\n * makeAnimation(element: any) {\n * // first define a reusable animation\n * const myAnimation = this._builder.build([\n * style({ width: 0 }),\n * animate(1000, style({ width: '100px' }))\n * ]);\n *\n * // use the returned factory object to create a player\n * const player = myAnimation.create(element);\n *\n * player.play();\n * }\n * }\n * ```\n *\n * @publicApi\n */\nclass AnimationBuilder {\n}\n/**\n * A factory object returned from the\n * [AnimationBuilder.build](api/animations/AnimationBuilder#build)()\n * method.\n *\n * @publicApi\n */\nclass AnimationFactory {\n}\n\n/**\n * Specifies automatic styling.\n *\n * @publicApi\n */\nconst AUTO_STYLE = '*';\n/**\n * Creates a named animation trigger, containing a list of [`state()`](api/animations/state)\n * and `transition()` entries to be evaluated when the expression\n * bound to the trigger changes.\n *\n * @param name An identifying string.\n * @param definitions An animation definition object, containing an array of\n * [`state()`](api/animations/state) and `transition()` declarations.\n *\n * @return An object that encapsulates the trigger data.\n *\n * @usageNotes\n * Define an animation trigger in the `animations` section of `@Component` metadata.\n * In the template, reference the trigger by name and bind it to a trigger expression that\n * evaluates to a defined animation state, using the following format:\n *\n * `[@triggerName]=\"expression\"`\n *\n * Animation trigger bindings convert all values to strings, and then match the\n * previous and current values against any linked transitions.\n * Booleans can be specified as `1` or `true` and `0` or `false`.\n *\n * ### Usage Example\n *\n * The following example creates an animation trigger reference based on the provided\n * name value.\n * The provided animation value is expected to be an array consisting of state and\n * transition declarations.\n *\n * ```typescript\n * @Component({\n * selector: \"my-component\",\n * templateUrl: \"my-component-tpl.html\",\n * animations: [\n * trigger(\"myAnimationTrigger\", [\n * state(...),\n * state(...),\n * transition(...),\n * transition(...)\n * ])\n * ]\n * })\n * class MyComponent {\n * myStatusExp = \"something\";\n * }\n * ```\n *\n * The template associated with this component makes use of the defined trigger\n * by binding to an element within its template code.\n *\n * ```html\n * \n * ...
\n * ```\n *\n * ### Using an inline function\n * The `transition` animation method also supports reading an inline function which can decide\n * if its associated animation should be run.\n *\n * ```typescript\n * // this method is run each time the `myAnimationTrigger` trigger value changes.\n * function myInlineMatcherFn(fromState: string, toState: string, element: any, params: {[key:\n string]: any}): boolean {\n * // notice that `element` and `params` are also available here\n * return toState == 'yes-please-animate';\n * }\n *\n * @Component({\n * selector: 'my-component',\n * templateUrl: 'my-component-tpl.html',\n * animations: [\n * trigger('myAnimationTrigger', [\n * transition(myInlineMatcherFn, [\n * // the animation sequence code\n * ]),\n * ])\n * ]\n * })\n * class MyComponent {\n * myStatusExp = \"yes-please-animate\";\n * }\n * ```\n *\n * ### Disabling Animations\n * When true, the special animation control binding `@.disabled` binding prevents\n * all animations from rendering.\n * Place the `@.disabled` binding on an element to disable\n * animations on the element itself, as well as any inner animation triggers\n * within the element.\n *\n * The following example shows how to use this feature:\n *\n * ```typescript\n * @Component({\n * selector: 'my-component',\n * template: `\n * \n * \n *
\n * `,\n * animations: [\n * trigger(\"childAnimation\", [\n * // ...\n * ])\n * ]\n * })\n * class MyComponent {\n * isDisabled = true;\n * exp = '...';\n * }\n * ```\n *\n * When `@.disabled` is true, it prevents the `@childAnimation` trigger from animating,\n * along with any inner animations.\n *\n * ### Disable animations application-wide\n * When an area of the template is set to have animations disabled,\n * **all** inner components have their animations disabled as well.\n * This means that you can disable all animations for an app\n * by placing a host binding set on `@.disabled` on the topmost Angular component.\n *\n * ```typescript\n * import {Component, HostBinding} from '@angular/core';\n *\n * @Component({\n * selector: 'app-component',\n * templateUrl: 'app.component.html',\n * })\n * class AppComponent {\n * @HostBinding('@.disabled')\n * public animationsDisabled = true;\n * }\n * ```\n *\n * ### Overriding disablement of inner animations\n * Despite inner animations being disabled, a parent animation can `query()`\n * for inner elements located in disabled areas of the template and still animate\n * them if needed. This is also the case for when a sub animation is\n * queried by a parent and then later animated using `animateChild()`.\n *\n * ### Detecting when an animation is disabled\n * If a region of the DOM (or the entire application) has its animations disabled, the animation\n * trigger callbacks still fire, but for zero seconds. When the callback fires, it provides\n * an instance of an `AnimationEvent`. If animations are disabled,\n * the `.disabled` flag on the event is true.\n *\n * @publicApi\n */\nfunction trigger(name, definitions) {\n return { type: 7 /* AnimationMetadataType.Trigger */, name, definitions, options: {} };\n}\n/**\n * Defines an animation step that combines styling information with timing information.\n *\n * @param timings Sets `AnimateTimings` for the parent animation.\n * A string in the format \"duration [delay] [easing]\".\n * - Duration and delay are expressed as a number and optional time unit,\n * such as \"1s\" or \"10ms\" for one second and 10 milliseconds, respectively.\n * The default unit is milliseconds.\n * - The easing value controls how the animation accelerates and decelerates\n * during its runtime. Value is one of `ease`, `ease-in`, `ease-out`,\n * `ease-in-out`, or a `cubic-bezier()` function call.\n * If not supplied, no easing is applied.\n *\n * For example, the string \"1s 100ms ease-out\" specifies a duration of\n * 1000 milliseconds, and delay of 100 ms, and the \"ease-out\" easing style,\n * which decelerates near the end of the duration.\n * @param styles Sets AnimationStyles for the parent animation.\n * A function call to either `style()` or `keyframes()`\n * that returns a collection of CSS style entries to be applied to the parent animation.\n * When null, uses the styles from the destination state.\n * This is useful when describing an animation step that will complete an animation;\n * see \"Animating to the final state\" in `transitions()`.\n * @returns An object that encapsulates the animation step.\n *\n * @usageNotes\n * Call within an animation `sequence()`, `{@link animations/group group()}`, or\n * `transition()` call to specify an animation step\n * that applies given style data to the parent animation for a given amount of time.\n *\n * ### Syntax Examples\n * **Timing examples**\n *\n * The following examples show various `timings` specifications.\n * - `animate(500)` : Duration is 500 milliseconds.\n * - `animate(\"1s\")` : Duration is 1000 milliseconds.\n * - `animate(\"100ms 0.5s\")` : Duration is 100 milliseconds, delay is 500 milliseconds.\n * - `animate(\"5s ease-in\")` : Duration is 5000 milliseconds, easing in.\n * - `animate(\"5s 10ms cubic-bezier(.17,.67,.88,.1)\")` : Duration is 5000 milliseconds, delay is 10\n * milliseconds, easing according to a bezier curve.\n *\n * **Style examples**\n *\n * The following example calls `style()` to set a single CSS style.\n * ```typescript\n * animate(500, style({ background: \"red\" }))\n * ```\n * The following example calls `keyframes()` to set a CSS style\n * to different values for successive keyframes.\n * ```typescript\n * animate(500, keyframes(\n * [\n * style({ background: \"blue\" }),\n * style({ background: \"red\" })\n * ])\n * ```\n *\n * @publicApi\n */\nfunction animate(timings, styles = null) {\n return { type: 4 /* AnimationMetadataType.Animate */, styles, timings };\n}\n/**\n * @description Defines a list of animation steps to be run in parallel.\n *\n * @param steps An array of animation step objects.\n * - When steps are defined by `style()` or `animate()`\n * function calls, each call within the group is executed instantly.\n * - To specify offset styles to be applied at a later time, define steps with\n * `keyframes()`, or use `animate()` calls with a delay value.\n * For example:\n *\n * ```typescript\n * group([\n * animate(\"1s\", style({ background: \"black\" })),\n * animate(\"2s\", style({ color: \"white\" }))\n * ])\n * ```\n *\n * @param options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return An object that encapsulates the group data.\n *\n * @usageNotes\n * Grouped animations are useful when a series of styles must be\n * animated at different starting times and closed off at different ending times.\n *\n * When called within a `sequence()` or a\n * `transition()` call, does not continue to the next\n * instruction until all of the inner animation steps have completed.\n *\n * @publicApi\n */\nfunction group(steps, options = null) {\n return { type: 3 /* AnimationMetadataType.Group */, steps, options };\n}\n/**\n * Defines a list of animation steps to be run sequentially, one by one.\n *\n * @param steps An array of animation step objects.\n * - Steps defined by `style()` calls apply the styling data immediately.\n * - Steps defined by `animate()` calls apply the styling data over time\n * as specified by the timing data.\n *\n * ```typescript\n * sequence([\n * style({ opacity: 0 }),\n * animate(\"1s\", style({ opacity: 1 }))\n * ])\n * ```\n *\n * @param options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return An object that encapsulates the sequence data.\n *\n * @usageNotes\n * When you pass an array of steps to a\n * `transition()` call, the steps run sequentially by default.\n * Compare this to the `{@link animations/group group()}` call, which runs animation steps in\n *parallel.\n *\n * When a sequence is used within a `{@link animations/group group()}` or a `transition()` call,\n * execution continues to the next instruction only after each of the inner animation\n * steps have completed.\n *\n * @publicApi\n **/\nfunction sequence(steps, options = null) {\n return { type: 2 /* AnimationMetadataType.Sequence */, steps, options };\n}\n/**\n * Declares a key/value object containing CSS properties/styles that\n * can then be used for an animation [`state`](api/animations/state), within an animation\n *`sequence`, or as styling data for calls to `animate()` and `keyframes()`.\n *\n * @param tokens A set of CSS styles or HTML styles associated with an animation state.\n * The value can be any of the following:\n * - A key-value style pair associating a CSS property with a value.\n * - An array of key-value style pairs.\n * - An asterisk (*), to use auto-styling, where styles are derived from the element\n * being animated and applied to the animation when it starts.\n *\n * Auto-styling can be used to define a state that depends on layout or other\n * environmental factors.\n *\n * @return An object that encapsulates the style data.\n *\n * @usageNotes\n * The following examples create animation styles that collect a set of\n * CSS property values:\n *\n * ```typescript\n * // string values for CSS properties\n * style({ background: \"red\", color: \"blue\" })\n *\n * // numerical pixel values\n * style({ width: 100, height: 0 })\n * ```\n *\n * The following example uses auto-styling to allow an element to animate from\n * a height of 0 up to its full height:\n *\n * ```\n * style({ height: 0 }),\n * animate(\"1s\", style({ height: \"*\" }))\n * ```\n *\n * @publicApi\n **/\nfunction style(tokens) {\n return { type: 6 /* AnimationMetadataType.Style */, styles: tokens, offset: null };\n}\n/**\n * Declares an animation state within a trigger attached to an element.\n *\n * @param name One or more names for the defined state in a comma-separated string.\n * The following reserved state names can be supplied to define a style for specific use\n * cases:\n *\n * - `void` You can associate styles with this name to be used when\n * the element is detached from the application. For example, when an `ngIf` evaluates\n * to false, the state of the associated element is void.\n * - `*` (asterisk) Indicates the default state. You can associate styles with this name\n * to be used as the fallback when the state that is being animated is not declared\n * within the trigger.\n *\n * @param styles A set of CSS styles associated with this state, created using the\n * `style()` function.\n * This set of styles persists on the element once the state has been reached.\n * @param options Parameters that can be passed to the state when it is invoked.\n * 0 or more key-value pairs.\n * @return An object that encapsulates the new state data.\n *\n * @usageNotes\n * Use the `trigger()` function to register states to an animation trigger.\n * Use the `transition()` function to animate between states.\n * When a state is active within a component, its associated styles persist on the element,\n * even when the animation ends.\n *\n * @publicApi\n **/\nfunction state(name, styles, options) {\n return { type: 0 /* AnimationMetadataType.State */, name, styles, options };\n}\n/**\n * Defines a set of animation styles, associating each style with an optional `offset` value.\n *\n * @param steps A set of animation styles with optional offset data.\n * The optional `offset` value for a style specifies a percentage of the total animation\n * time at which that style is applied.\n * @returns An object that encapsulates the keyframes data.\n *\n * @usageNotes\n * Use with the `animate()` call. Instead of applying animations\n * from the current state\n * to the destination state, keyframes describe how each style entry is applied and at what point\n * within the animation arc.\n * Compare [CSS Keyframe Animations](https://www.w3schools.com/css/css3_animations.asp).\n *\n * ### Usage\n *\n * In the following example, the offset values describe\n * when each `backgroundColor` value is applied. The color is red at the start, and changes to\n * blue when 20% of the total time has elapsed.\n *\n * ```typescript\n * // the provided offset values\n * animate(\"5s\", keyframes([\n * style({ backgroundColor: \"red\", offset: 0 }),\n * style({ backgroundColor: \"blue\", offset: 0.2 }),\n * style({ backgroundColor: \"orange\", offset: 0.3 }),\n * style({ backgroundColor: \"black\", offset: 1 })\n * ]))\n * ```\n *\n * If there are no `offset` values specified in the style entries, the offsets\n * are calculated automatically.\n *\n * ```typescript\n * animate(\"5s\", keyframes([\n * style({ backgroundColor: \"red\" }) // offset = 0\n * style({ backgroundColor: \"blue\" }) // offset = 0.33\n * style({ backgroundColor: \"orange\" }) // offset = 0.66\n * style({ backgroundColor: \"black\" }) // offset = 1\n * ]))\n *```\n\n * @publicApi\n */\nfunction keyframes(steps) {\n return { type: 5 /* AnimationMetadataType.Keyframes */, steps };\n}\n/**\n * Declares an animation transition which is played when a certain specified condition is met.\n *\n * @param stateChangeExpr A string with a specific format or a function that specifies when the\n * animation transition should occur (see [State Change Expression](#state-change-expression)).\n *\n * @param steps One or more animation objects that represent the animation's instructions.\n *\n * @param options An options object that can be used to specify a delay for the animation or provide\n * custom parameters for it.\n *\n * @returns An object that encapsulates the transition data.\n *\n * @usageNotes\n *\n * ### State Change Expression\n *\n * The State Change Expression instructs Angular when to run the transition's animations, it can\n *either be\n * - a string with a specific syntax\n * - or a function that compares the previous and current state (value of the expression bound to\n * the element's trigger) and returns `true` if the transition should occur or `false` otherwise\n *\n * The string format can be:\n * - `fromState => toState`, which indicates that the transition's animations should occur then the\n * expression bound to the trigger's element goes from `fromState` to `toState`\n *\n * _Example:_\n * ```typescript\n * transition('open => closed', animate('.5s ease-out', style({ height: 0 }) ))\n * ```\n *\n * - `fromState <=> toState`, which indicates that the transition's animations should occur then\n * the expression bound to the trigger's element goes from `fromState` to `toState` or vice versa\n *\n * _Example:_\n * ```typescript\n * transition('enabled <=> disabled', animate('1s cubic-bezier(0.8,0.3,0,1)'))\n * ```\n *\n * - `:enter`/`:leave`, which indicates that the transition's animations should occur when the\n * element enters or exists the DOM\n *\n * _Example:_\n * ```typescript\n * transition(':enter', [\n * style({ opacity: 0 }),\n * animate('500ms', style({ opacity: 1 }))\n * ])\n * ```\n *\n * - `:increment`/`:decrement`, which indicates that the transition's animations should occur when\n * the numerical expression bound to the trigger's element has increased in value or decreased\n *\n * _Example:_\n * ```typescript\n * transition(':increment', query('@counter', animateChild()))\n * ```\n *\n * - a sequence of any of the above divided by commas, which indicates that transition's animations\n * should occur whenever one of the state change expressions matches\n *\n * _Example:_\n * ```typescript\n * transition(':increment, * => enabled, :enter', animate('1s ease', keyframes([\n * style({ transform: 'scale(1)', offset: 0}),\n * style({ transform: 'scale(1.1)', offset: 0.7}),\n * style({ transform: 'scale(1)', offset: 1})\n * ]))),\n * ```\n *\n * Also note that in such context:\n * - `void` can be used to indicate the absence of the element\n * - asterisks can be used as wildcards that match any state\n * - (as a consequence of the above, `void => *` is equivalent to `:enter` and `* => void` is\n * equivalent to `:leave`)\n * - `true` and `false` also match expression values of `1` and `0` respectively (but do not match\n * _truthy_ and _falsy_ values)\n *\n * \n *\n * Be careful about entering end leaving elements as their transitions present a common\n * pitfall for developers.\n *\n * Note that when an element with a trigger enters the DOM its `:enter` transition always\n * gets executed, but its `:leave` transition will not be executed if the element is removed\n * alongside its parent (as it will be removed \"without warning\" before its transition has\n * a chance to be executed, the only way that such transition can occur is if the element\n * is exiting the DOM on its own).\n *\n *\n *
\n *\n * ### Animating to a Final State\n *\n * If the final step in a transition is a call to `animate()` that uses a timing value\n * with no `style` data, that step is automatically considered the final animation arc,\n * for the element to reach the final state, in such case Angular automatically adds or removes\n * CSS styles to ensure that the element is in the correct final state.\n *\n *\n * ### Usage Examples\n *\n * - Transition animations applied based on\n * the trigger's expression value\n *\n * ```HTML\n * \n * ...\n *
\n * ```\n *\n * ```typescript\n * trigger(\"myAnimationTrigger\", [\n * ..., // states\n * transition(\"on => off, open => closed\", animate(500)),\n * transition(\"* <=> error\", query('.indicator', animateChild()))\n * ])\n * ```\n *\n * - Transition animations applied based on custom logic dependent\n * on the trigger's expression value and provided parameters\n *\n * ```HTML\n * \n * ...\n *
\n * ```\n *\n * ```typescript\n * trigger(\"myAnimationTrigger\", [\n * ..., // states\n * transition(\n * (fromState, toState, _element, params) =>\n * ['firststep', 'laststep'].includes(fromState.toLowerCase())\n * && toState === params?.['target'],\n * animate('1s')\n * )\n * ])\n * ```\n *\n * @publicApi\n **/\nfunction transition(stateChangeExpr, steps, options = null) {\n return { type: 1 /* AnimationMetadataType.Transition */, expr: stateChangeExpr, animation: steps, options };\n}\n/**\n * Produces a reusable animation that can be invoked in another animation or sequence,\n * by calling the `useAnimation()` function.\n *\n * @param steps One or more animation objects, as returned by the `animate()`\n * or `sequence()` function, that form a transformation from one state to another.\n * A sequence is used by default when you pass an array.\n * @param options An options object that can contain a delay value for the start of the\n * animation, and additional developer-defined parameters.\n * Provided values for additional parameters are used as defaults,\n * and override values can be passed to the caller on invocation.\n * @returns An object that encapsulates the animation data.\n *\n * @usageNotes\n * The following example defines a reusable animation, providing some default parameter\n * values.\n *\n * ```typescript\n * var fadeAnimation = animation([\n * style({ opacity: '{{ start }}' }),\n * animate('{{ time }}',\n * style({ opacity: '{{ end }}'}))\n * ],\n * { params: { time: '1000ms', start: 0, end: 1 }});\n * ```\n *\n * The following invokes the defined animation with a call to `useAnimation()`,\n * passing in override parameter values.\n *\n * ```js\n * useAnimation(fadeAnimation, {\n * params: {\n * time: '2s',\n * start: 1,\n * end: 0\n * }\n * })\n * ```\n *\n * If any of the passed-in parameter values are missing from this call,\n * the default values are used. If one or more parameter values are missing before a step is\n * animated, `useAnimation()` throws an error.\n *\n * @publicApi\n */\nfunction animation(steps, options = null) {\n return { type: 8 /* AnimationMetadataType.Reference */, animation: steps, options };\n}\n/**\n * Executes a queried inner animation element within an animation sequence.\n *\n * @param options An options object that can contain a delay value for the start of the\n * animation, and additional override values for developer-defined parameters.\n * @return An object that encapsulates the child animation data.\n *\n * @usageNotes\n * Each time an animation is triggered in Angular, the parent animation\n * has priority and any child animations are blocked. In order\n * for a child animation to run, the parent animation must query each of the elements\n * containing child animations, and run them using this function.\n *\n * Note that this feature is designed to be used with `query()` and it will only work\n * with animations that are assigned using the Angular animation library. CSS keyframes\n * and transitions are not handled by this API.\n *\n * @publicApi\n */\nfunction animateChild(options = null) {\n return { type: 9 /* AnimationMetadataType.AnimateChild */, options };\n}\n/**\n * Starts a reusable animation that is created using the `animation()` function.\n *\n * @param animation The reusable animation to start.\n * @param options An options object that can contain a delay value for the start of\n * the animation, and additional override values for developer-defined parameters.\n * @return An object that contains the animation parameters.\n *\n * @publicApi\n */\nfunction useAnimation(animation, options = null) {\n return { type: 10 /* AnimationMetadataType.AnimateRef */, animation, options };\n}\n/**\n * Finds one or more inner elements within the current element that is\n * being animated within a sequence. Use with `animate()`.\n *\n * @param selector The element to query, or a set of elements that contain Angular-specific\n * characteristics, specified with one or more of the following tokens.\n * - `query(\":enter\")` or `query(\":leave\")` : Query for newly inserted/removed elements (not\n * all elements can be queried via these tokens, see\n * [Entering and Leaving Elements](#entering-and-leaving-elements))\n * - `query(\":animating\")` : Query all currently animating elements.\n * - `query(\"@triggerName\")` : Query elements that contain an animation trigger.\n * - `query(\"@*\")` : Query all elements that contain an animation triggers.\n * - `query(\":self\")` : Include the current element into the animation sequence.\n *\n * @param animation One or more animation steps to apply to the queried element or elements.\n * An array is treated as an animation sequence.\n * @param options An options object. Use the 'limit' field to limit the total number of\n * items to collect.\n * @return An object that encapsulates the query data.\n *\n * @usageNotes\n *\n * ### Multiple Tokens\n *\n * Tokens can be merged into a combined query selector string. For example:\n *\n * ```typescript\n * query(':self, .record:enter, .record:leave, @subTrigger', [...])\n * ```\n *\n * The `query()` function collects multiple elements and works internally by using\n * `element.querySelectorAll`. Use the `limit` field of an options object to limit\n * the total number of items to be collected. For example:\n *\n * ```js\n * query('div', [\n * animate(...),\n * animate(...)\n * ], { limit: 1 })\n * ```\n *\n * By default, throws an error when zero items are found. Set the\n * `optional` flag to ignore this error. For example:\n *\n * ```js\n * query('.some-element-that-may-not-be-there', [\n * animate(...),\n * animate(...)\n * ], { optional: true })\n * ```\n *\n * ### Entering and Leaving Elements\n *\n * Not all elements can be queried via the `:enter` and `:leave` tokens, the only ones\n * that can are those that Angular assumes can enter/leave based on their own logic\n * (if their insertion/removal is simply a consequence of that of their parent they\n * should be queried via a different token in their parent's `:enter`/`:leave` transitions).\n *\n * The only elements Angular assumes can enter/leave based on their own logic (thus the only\n * ones that can be queried via the `:enter` and `:leave` tokens) are:\n * - Those inserted dynamically (via `ViewContainerRef`)\n * - Those that have a structural directive (which, under the hood, are a subset of the above ones)\n *\n * \n *\n * Note that elements will be successfully queried via `:enter`/`:leave` even if their\n * insertion/removal is not done manually via `ViewContainerRef`or caused by their structural\n * directive (e.g. they enter/exit alongside their parent).\n *\n *
\n *\n * \n *\n * There is an exception to what previously mentioned, besides elements entering/leaving based on\n * their own logic, elements with an animation trigger can always be queried via `:leave` when\n * their parent is also leaving.\n *\n *
\n *\n * ### Usage Example\n *\n * The following example queries for inner elements and animates them\n * individually using `animate()`.\n *\n * ```typescript\n * @Component({\n * selector: 'inner',\n * template: `\n * \n *
\n * `,\n * animations: [\n * trigger('queryAnimation', [\n * transition('* => goAnimate', [\n * // hide the inner elements\n * query('h1', style({ opacity: 0 })),\n * query('.content', style({ opacity: 0 })),\n *\n * // animate the inner elements in, one by one\n * query('h1', animate(1000, style({ opacity: 1 }))),\n * query('.content', animate(1000, style({ opacity: 1 }))),\n * ])\n * ])\n * ]\n * })\n * class Cmp {\n * exp = '';\n *\n * goAnimate() {\n * this.exp = 'goAnimate';\n * }\n * }\n * ```\n *\n * @publicApi\n */\nfunction query(selector, animation, options = null) {\n return { type: 11 /* AnimationMetadataType.Query */, selector, animation, options };\n}\n/**\n * Use within an animation `query()` call to issue a timing gap after\n * each queried item is animated.\n *\n * @param timings A delay value.\n * @param animation One ore more animation steps.\n * @returns An object that encapsulates the stagger data.\n *\n * @usageNotes\n * In the following example, a container element wraps a list of items stamped out\n * by an `ngFor`. The container element contains an animation trigger that will later be set\n * to query for each of the inner items.\n *\n * Each time items are added, the opacity fade-in animation runs,\n * and each removed item is faded out.\n * When either of these animations occur, the stagger effect is\n * applied after each item's animation is started.\n *\n * ```html\n * \n * \n * Title
\n *\n * Blah blah blah\n *
\n * \n *
\n *
\n * ```\n *\n * Here is the component code:\n *\n * ```typescript\n * import {trigger, transition, style, animate, query, stagger} from '@angular/animations';\n * @Component({\n * templateUrl: 'list.component.html',\n * animations: [\n * trigger('listAnimation', [\n * ...\n * ])\n * ]\n * })\n * class ListComponent {\n * items = [];\n *\n * showItems() {\n * this.items = [0,1,2,3,4];\n * }\n *\n * hideItems() {\n * this.items = [];\n * }\n *\n * toggle() {\n * this.items.length ? this.hideItems() : this.showItems();\n * }\n * }\n * ```\n *\n * Here is the animation trigger code:\n *\n * ```typescript\n * trigger('listAnimation', [\n * transition('* => *', [ // each time the binding value changes\n * query(':leave', [\n * stagger(100, [\n * animate('0.5s', style({ opacity: 0 }))\n * ])\n * ]),\n * query(':enter', [\n * style({ opacity: 0 }),\n * stagger(100, [\n * animate('0.5s', style({ opacity: 1 }))\n * ])\n * ])\n * ])\n * ])\n * ```\n *\n * @publicApi\n */\nfunction stagger(timings, animation) {\n return { type: 12 /* AnimationMetadataType.Stagger */, timings, animation };\n}\n\nfunction scheduleMicroTask(cb) {\n Promise.resolve().then(cb);\n}\n\n/**\n * An empty programmatic controller for reusable animations.\n * Used internally when animations are disabled, to avoid\n * checking for the null case when an animation player is expected.\n *\n * @see `animate()`\n * @see `AnimationPlayer`\n * @see `GroupPlayer`\n *\n * @publicApi\n */\nclass NoopAnimationPlayer {\n constructor(duration = 0, delay = 0) {\n this._onDoneFns = [];\n this._onStartFns = [];\n this._onDestroyFns = [];\n this._originalOnDoneFns = [];\n this._originalOnStartFns = [];\n this._started = false;\n this._destroyed = false;\n this._finished = false;\n this._position = 0;\n this.parentPlayer = null;\n this.totalTime = duration + delay;\n }\n _onFinish() {\n if (!this._finished) {\n this._finished = true;\n this._onDoneFns.forEach(fn => fn());\n this._onDoneFns = [];\n }\n }\n onStart(fn) {\n this._originalOnStartFns.push(fn);\n this._onStartFns.push(fn);\n }\n onDone(fn) {\n this._originalOnDoneFns.push(fn);\n this._onDoneFns.push(fn);\n }\n onDestroy(fn) {\n this._onDestroyFns.push(fn);\n }\n hasStarted() {\n return this._started;\n }\n init() { }\n play() {\n if (!this.hasStarted()) {\n this._onStart();\n this.triggerMicrotask();\n }\n this._started = true;\n }\n /** @internal */\n triggerMicrotask() {\n scheduleMicroTask(() => this._onFinish());\n }\n _onStart() {\n this._onStartFns.forEach(fn => fn());\n this._onStartFns = [];\n }\n pause() { }\n restart() { }\n finish() {\n this._onFinish();\n }\n destroy() {\n if (!this._destroyed) {\n this._destroyed = true;\n if (!this.hasStarted()) {\n this._onStart();\n }\n this.finish();\n this._onDestroyFns.forEach(fn => fn());\n this._onDestroyFns = [];\n }\n }\n reset() {\n this._started = false;\n this._finished = false;\n this._onStartFns = this._originalOnStartFns;\n this._onDoneFns = this._originalOnDoneFns;\n }\n setPosition(position) {\n this._position = this.totalTime ? position * this.totalTime : 1;\n }\n getPosition() {\n return this.totalTime ? this._position / this.totalTime : 1;\n }\n /** @internal */\n triggerCallback(phaseName) {\n const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n methods.forEach(fn => fn());\n methods.length = 0;\n }\n}\n\n/**\n * A programmatic controller for a group of reusable animations.\n * Used internally to control animations.\n *\n * @see `AnimationPlayer`\n * @see `{@link animations/group group()}`\n *\n */\nclass AnimationGroupPlayer {\n constructor(_players) {\n this._onDoneFns = [];\n this._onStartFns = [];\n this._finished = false;\n this._started = false;\n this._destroyed = false;\n this._onDestroyFns = [];\n this.parentPlayer = null;\n this.totalTime = 0;\n this.players = _players;\n let doneCount = 0;\n let destroyCount = 0;\n let startCount = 0;\n const total = this.players.length;\n if (total == 0) {\n scheduleMicroTask(() => this._onFinish());\n }\n else {\n this.players.forEach(player => {\n player.onDone(() => {\n if (++doneCount == total) {\n this._onFinish();\n }\n });\n player.onDestroy(() => {\n if (++destroyCount == total) {\n this._onDestroy();\n }\n });\n player.onStart(() => {\n if (++startCount == total) {\n this._onStart();\n }\n });\n });\n }\n this.totalTime = this.players.reduce((time, player) => Math.max(time, player.totalTime), 0);\n }\n _onFinish() {\n if (!this._finished) {\n this._finished = true;\n this._onDoneFns.forEach(fn => fn());\n this._onDoneFns = [];\n }\n }\n init() {\n this.players.forEach(player => player.init());\n }\n onStart(fn) {\n this._onStartFns.push(fn);\n }\n _onStart() {\n if (!this.hasStarted()) {\n this._started = true;\n this._onStartFns.forEach(fn => fn());\n this._onStartFns = [];\n }\n }\n onDone(fn) {\n this._onDoneFns.push(fn);\n }\n onDestroy(fn) {\n this._onDestroyFns.push(fn);\n }\n hasStarted() {\n return this._started;\n }\n play() {\n if (!this.parentPlayer) {\n this.init();\n }\n this._onStart();\n this.players.forEach(player => player.play());\n }\n pause() {\n this.players.forEach(player => player.pause());\n }\n restart() {\n this.players.forEach(player => player.restart());\n }\n finish() {\n this._onFinish();\n this.players.forEach(player => player.finish());\n }\n destroy() {\n this._onDestroy();\n }\n _onDestroy() {\n if (!this._destroyed) {\n this._destroyed = true;\n this._onFinish();\n this.players.forEach(player => player.destroy());\n this._onDestroyFns.forEach(fn => fn());\n this._onDestroyFns = [];\n }\n }\n reset() {\n this.players.forEach(player => player.reset());\n this._destroyed = false;\n this._finished = false;\n this._started = false;\n }\n setPosition(p) {\n const timeAtPosition = p * this.totalTime;\n this.players.forEach(player => {\n const position = player.totalTime ? Math.min(1, timeAtPosition / player.totalTime) : 1;\n player.setPosition(position);\n });\n }\n getPosition() {\n const longestPlayer = this.players.reduce((longestSoFar, player) => {\n const newPlayerIsLongest = longestSoFar === null || player.totalTime > longestSoFar.totalTime;\n return newPlayerIsLongest ? player : longestSoFar;\n }, null);\n return longestPlayer != null ? longestPlayer.getPosition() : 0;\n }\n beforeDestroy() {\n this.players.forEach(player => {\n if (player.beforeDestroy) {\n player.beforeDestroy();\n }\n });\n }\n /** @internal */\n triggerCallback(phaseName) {\n const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n methods.forEach(fn => fn());\n methods.length = 0;\n }\n}\n\nconst ɵPRE_STYLE = '!';\n\n/**\n * @module\n * @description\n * Entry point for all animation APIs of the animation package.\n */\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AUTO_STYLE, AnimationBuilder, AnimationFactory, NoopAnimationPlayer, animate, animateChild, animation, group, keyframes, query, sequence, stagger, state, style, transition, trigger, useAnimation, AnimationGroupPlayer as ɵAnimationGroupPlayer, ɵPRE_STYLE };\n","/**\n * @license Angular v15.2.1\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { ɵAnimationGroupPlayer, NoopAnimationPlayer, AUTO_STYLE, ɵPRE_STYLE, sequence, style } from '@angular/animations';\nimport * as i0 from '@angular/core';\nimport { ɵRuntimeError, Injectable } from '@angular/core';\n\nconst LINE_START = '\\n - ';\nfunction invalidTimingValue(exp) {\n return new ɵRuntimeError(3000 /* RuntimeErrorCode.INVALID_TIMING_VALUE */, ngDevMode && `The provided timing value \"${exp}\" is invalid.`);\n}\nfunction negativeStepValue() {\n return new ɵRuntimeError(3100 /* RuntimeErrorCode.NEGATIVE_STEP_VALUE */, ngDevMode && 'Duration values below 0 are not allowed for this animation step.');\n}\nfunction negativeDelayValue() {\n return new ɵRuntimeError(3101 /* RuntimeErrorCode.NEGATIVE_DELAY_VALUE */, ngDevMode && 'Delay values below 0 are not allowed for this animation step.');\n}\nfunction invalidStyleParams(varName) {\n return new ɵRuntimeError(3001 /* RuntimeErrorCode.INVALID_STYLE_PARAMS */, ngDevMode &&\n `Unable to resolve the local animation param ${varName} in the given list of values`);\n}\nfunction invalidParamValue(varName) {\n return new ɵRuntimeError(3003 /* RuntimeErrorCode.INVALID_PARAM_VALUE */, ngDevMode && `Please provide a value for the animation param ${varName}`);\n}\nfunction invalidNodeType(nodeType) {\n return new ɵRuntimeError(3004 /* RuntimeErrorCode.INVALID_NODE_TYPE */, ngDevMode && `Unable to resolve animation metadata node #${nodeType}`);\n}\nfunction invalidCssUnitValue(userProvidedProperty, value) {\n return new ɵRuntimeError(3005 /* RuntimeErrorCode.INVALID_CSS_UNIT_VALUE */, ngDevMode && `Please provide a CSS unit value for ${userProvidedProperty}:${value}`);\n}\nfunction invalidTrigger() {\n return new ɵRuntimeError(3006 /* RuntimeErrorCode.INVALID_TRIGGER */, ngDevMode &&\n 'animation triggers cannot be prefixed with an `@` sign (e.g. trigger(\\'@foo\\', [...]))');\n}\nfunction invalidDefinition() {\n return new ɵRuntimeError(3007 /* RuntimeErrorCode.INVALID_DEFINITION */, ngDevMode && 'only state() and transition() definitions can sit inside of a trigger()');\n}\nfunction invalidState(metadataName, missingSubs) {\n return new ɵRuntimeError(3008 /* RuntimeErrorCode.INVALID_STATE */, ngDevMode &&\n `state(\"${metadataName}\", ...) must define default values for all the following style substitutions: ${missingSubs.join(', ')}`);\n}\nfunction invalidStyleValue(value) {\n return new ɵRuntimeError(3002 /* RuntimeErrorCode.INVALID_STYLE_VALUE */, ngDevMode && `The provided style string value ${value} is not allowed.`);\n}\nfunction invalidProperty(prop) {\n return new ɵRuntimeError(3009 /* RuntimeErrorCode.INVALID_PROPERTY */, ngDevMode &&\n `The provided animation property \"${prop}\" is not a supported CSS property for animations`);\n}\nfunction invalidParallelAnimation(prop, firstStart, firstEnd, secondStart, secondEnd) {\n return new ɵRuntimeError(3010 /* RuntimeErrorCode.INVALID_PARALLEL_ANIMATION */, ngDevMode &&\n `The CSS property \"${prop}\" that exists between the times of \"${firstStart}ms\" and \"${firstEnd}ms\" is also being animated in a parallel animation between the times of \"${secondStart}ms\" and \"${secondEnd}ms\"`);\n}\nfunction invalidKeyframes() {\n return new ɵRuntimeError(3011 /* RuntimeErrorCode.INVALID_KEYFRAMES */, ngDevMode && `keyframes() must be placed inside of a call to animate()`);\n}\nfunction invalidOffset() {\n return new ɵRuntimeError(3012 /* RuntimeErrorCode.INVALID_OFFSET */, ngDevMode && `Please ensure that all keyframe offsets are between 0 and 1`);\n}\nfunction keyframeOffsetsOutOfOrder() {\n return new ɵRuntimeError(3200 /* RuntimeErrorCode.KEYFRAME_OFFSETS_OUT_OF_ORDER */, ngDevMode && `Please ensure that all keyframe offsets are in order`);\n}\nfunction keyframesMissingOffsets() {\n return new ɵRuntimeError(3202 /* RuntimeErrorCode.KEYFRAMES_MISSING_OFFSETS */, ngDevMode && `Not all style() steps within the declared keyframes() contain offsets`);\n}\nfunction invalidStagger() {\n return new ɵRuntimeError(3013 /* RuntimeErrorCode.INVALID_STAGGER */, ngDevMode && `stagger() can only be used inside of query()`);\n}\nfunction invalidQuery(selector) {\n return new ɵRuntimeError(3014 /* RuntimeErrorCode.INVALID_QUERY */, ngDevMode &&\n `\\`query(\"${selector}\")\\` returned zero elements. (Use \\`query(\"${selector}\", { optional: true })\\` if you wish to allow this.)`);\n}\nfunction invalidExpression(expr) {\n return new ɵRuntimeError(3015 /* RuntimeErrorCode.INVALID_EXPRESSION */, ngDevMode && `The provided transition expression \"${expr}\" is not supported`);\n}\nfunction invalidTransitionAlias(alias) {\n return new ɵRuntimeError(3016 /* RuntimeErrorCode.INVALID_TRANSITION_ALIAS */, ngDevMode && `The transition alias value \"${alias}\" is not supported`);\n}\nfunction validationFailed(errors) {\n return new ɵRuntimeError(3500 /* RuntimeErrorCode.VALIDATION_FAILED */, ngDevMode && `animation validation failed:\\n${errors.map(err => err.message).join('\\n')}`);\n}\nfunction buildingFailed(errors) {\n return new ɵRuntimeError(3501 /* RuntimeErrorCode.BUILDING_FAILED */, ngDevMode && `animation building failed:\\n${errors.map(err => err.message).join('\\n')}`);\n}\nfunction triggerBuildFailed(name, errors) {\n return new ɵRuntimeError(3404 /* RuntimeErrorCode.TRIGGER_BUILD_FAILED */, ngDevMode &&\n `The animation trigger \"${name}\" has failed to build due to the following errors:\\n - ${errors.map(err => err.message).join('\\n - ')}`);\n}\nfunction animationFailed(errors) {\n return new ɵRuntimeError(3502 /* RuntimeErrorCode.ANIMATION_FAILED */, ngDevMode &&\n `Unable to animate due to the following errors:${LINE_START}${errors.map(err => err.message).join(LINE_START)}`);\n}\nfunction registerFailed(errors) {\n return new ɵRuntimeError(3503 /* RuntimeErrorCode.REGISTRATION_FAILED */, ngDevMode &&\n `Unable to build the animation due to the following errors: ${errors.map(err => err.message).join('\\n')}`);\n}\nfunction missingOrDestroyedAnimation() {\n return new ɵRuntimeError(3300 /* RuntimeErrorCode.MISSING_OR_DESTROYED_ANIMATION */, ngDevMode && 'The requested animation doesn\\'t exist or has already been destroyed');\n}\nfunction createAnimationFailed(errors) {\n return new ɵRuntimeError(3504 /* RuntimeErrorCode.CREATE_ANIMATION_FAILED */, ngDevMode &&\n `Unable to create the animation due to the following errors:${errors.map(err => err.message).join('\\n')}`);\n}\nfunction missingPlayer(id) {\n return new ɵRuntimeError(3301 /* RuntimeErrorCode.MISSING_PLAYER */, ngDevMode && `Unable to find the timeline player referenced by ${id}`);\n}\nfunction missingTrigger(phase, name) {\n return new ɵRuntimeError(3302 /* RuntimeErrorCode.MISSING_TRIGGER */, ngDevMode &&\n `Unable to listen on the animation trigger event \"${phase}\" because the animation trigger \"${name}\" doesn\\'t exist!`);\n}\nfunction missingEvent(name) {\n return new ɵRuntimeError(3303 /* RuntimeErrorCode.MISSING_EVENT */, ngDevMode &&\n `Unable to listen on the animation trigger \"${name}\" because the provided event is undefined!`);\n}\nfunction unsupportedTriggerEvent(phase, name) {\n return new ɵRuntimeError(3400 /* RuntimeErrorCode.UNSUPPORTED_TRIGGER_EVENT */, ngDevMode &&\n `The provided animation trigger event \"${phase}\" for the animation trigger \"${name}\" is not supported!`);\n}\nfunction unregisteredTrigger(name) {\n return new ɵRuntimeError(3401 /* RuntimeErrorCode.UNREGISTERED_TRIGGER */, ngDevMode && `The provided animation trigger \"${name}\" has not been registered!`);\n}\nfunction triggerTransitionsFailed(errors) {\n return new ɵRuntimeError(3402 /* RuntimeErrorCode.TRIGGER_TRANSITIONS_FAILED */, ngDevMode &&\n `Unable to process animations due to the following failed trigger transitions\\n ${errors.map(err => err.message).join('\\n')}`);\n}\nfunction triggerParsingFailed(name, errors) {\n return new ɵRuntimeError(3403 /* RuntimeErrorCode.TRIGGER_PARSING_FAILED */, ngDevMode &&\n `Animation parsing for the ${name} trigger have failed:${LINE_START}${errors.map(err => err.message).join(LINE_START)}`);\n}\nfunction transitionFailed(name, errors) {\n return new ɵRuntimeError(3505 /* RuntimeErrorCode.TRANSITION_FAILED */, ngDevMode && `@${name} has failed due to:\\n ${errors.map(err => err.message).join('\\n- ')}`);\n}\n\n/**\n * Set of all animatable CSS properties\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_animated_properties\n */\nconst ANIMATABLE_PROP_SET = new Set([\n '-moz-outline-radius',\n '-moz-outline-radius-bottomleft',\n '-moz-outline-radius-bottomright',\n '-moz-outline-radius-topleft',\n '-moz-outline-radius-topright',\n '-ms-grid-columns',\n '-ms-grid-rows',\n '-webkit-line-clamp',\n '-webkit-text-fill-color',\n '-webkit-text-stroke',\n '-webkit-text-stroke-color',\n 'accent-color',\n 'all',\n 'backdrop-filter',\n 'background',\n 'background-color',\n 'background-position',\n 'background-size',\n 'block-size',\n 'border',\n 'border-block-end',\n 'border-block-end-color',\n 'border-block-end-width',\n 'border-block-start',\n 'border-block-start-color',\n 'border-block-start-width',\n 'border-bottom',\n 'border-bottom-color',\n 'border-bottom-left-radius',\n 'border-bottom-right-radius',\n 'border-bottom-width',\n 'border-color',\n 'border-end-end-radius',\n 'border-end-start-radius',\n 'border-image-outset',\n 'border-image-slice',\n 'border-image-width',\n 'border-inline-end',\n 'border-inline-end-color',\n 'border-inline-end-width',\n 'border-inline-start',\n 'border-inline-start-color',\n 'border-inline-start-width',\n 'border-left',\n 'border-left-color',\n 'border-left-width',\n 'border-radius',\n 'border-right',\n 'border-right-color',\n 'border-right-width',\n 'border-start-end-radius',\n 'border-start-start-radius',\n 'border-top',\n 'border-top-color',\n 'border-top-left-radius',\n 'border-top-right-radius',\n 'border-top-width',\n 'border-width',\n 'bottom',\n 'box-shadow',\n 'caret-color',\n 'clip',\n 'clip-path',\n 'color',\n 'column-count',\n 'column-gap',\n 'column-rule',\n 'column-rule-color',\n 'column-rule-width',\n 'column-width',\n 'columns',\n 'filter',\n 'flex',\n 'flex-basis',\n 'flex-grow',\n 'flex-shrink',\n 'font',\n 'font-size',\n 'font-size-adjust',\n 'font-stretch',\n 'font-variation-settings',\n 'font-weight',\n 'gap',\n 'grid-column-gap',\n 'grid-gap',\n 'grid-row-gap',\n 'grid-template-columns',\n 'grid-template-rows',\n 'height',\n 'inline-size',\n 'input-security',\n 'inset',\n 'inset-block',\n 'inset-block-end',\n 'inset-block-start',\n 'inset-inline',\n 'inset-inline-end',\n 'inset-inline-start',\n 'left',\n 'letter-spacing',\n 'line-clamp',\n 'line-height',\n 'margin',\n 'margin-block-end',\n 'margin-block-start',\n 'margin-bottom',\n 'margin-inline-end',\n 'margin-inline-start',\n 'margin-left',\n 'margin-right',\n 'margin-top',\n 'mask',\n 'mask-border',\n 'mask-position',\n 'mask-size',\n 'max-block-size',\n 'max-height',\n 'max-inline-size',\n 'max-lines',\n 'max-width',\n 'min-block-size',\n 'min-height',\n 'min-inline-size',\n 'min-width',\n 'object-position',\n 'offset',\n 'offset-anchor',\n 'offset-distance',\n 'offset-path',\n 'offset-position',\n 'offset-rotate',\n 'opacity',\n 'order',\n 'outline',\n 'outline-color',\n 'outline-offset',\n 'outline-width',\n 'padding',\n 'padding-block-end',\n 'padding-block-start',\n 'padding-bottom',\n 'padding-inline-end',\n 'padding-inline-start',\n 'padding-left',\n 'padding-right',\n 'padding-top',\n 'perspective',\n 'perspective-origin',\n 'right',\n 'rotate',\n 'row-gap',\n 'scale',\n 'scroll-margin',\n 'scroll-margin-block',\n 'scroll-margin-block-end',\n 'scroll-margin-block-start',\n 'scroll-margin-bottom',\n 'scroll-margin-inline',\n 'scroll-margin-inline-end',\n 'scroll-margin-inline-start',\n 'scroll-margin-left',\n 'scroll-margin-right',\n 'scroll-margin-top',\n 'scroll-padding',\n 'scroll-padding-block',\n 'scroll-padding-block-end',\n 'scroll-padding-block-start',\n 'scroll-padding-bottom',\n 'scroll-padding-inline',\n 'scroll-padding-inline-end',\n 'scroll-padding-inline-start',\n 'scroll-padding-left',\n 'scroll-padding-right',\n 'scroll-padding-top',\n 'scroll-snap-coordinate',\n 'scroll-snap-destination',\n 'scrollbar-color',\n 'shape-image-threshold',\n 'shape-margin',\n 'shape-outside',\n 'tab-size',\n 'text-decoration',\n 'text-decoration-color',\n 'text-decoration-thickness',\n 'text-emphasis',\n 'text-emphasis-color',\n 'text-indent',\n 'text-shadow',\n 'text-underline-offset',\n 'top',\n 'transform',\n 'transform-origin',\n 'translate',\n 'vertical-align',\n 'visibility',\n 'width',\n 'word-spacing',\n 'z-index',\n 'zoom',\n]);\n\nfunction isBrowser() {\n return (typeof window !== 'undefined' && typeof window.document !== 'undefined');\n}\nfunction isNode() {\n // Checking only for `process` isn't enough to identify whether or not we're in a Node\n // environment, because Webpack by default will polyfill the `process`. While we can discern\n // that Webpack polyfilled it by looking at `process.browser`, it's very Webpack-specific and\n // might not be future-proof. Instead we look at the stringified version of `process` which\n // is `[object process]` in Node and `[object Object]` when polyfilled.\n return typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';\n}\nfunction optimizeGroupPlayer(players) {\n switch (players.length) {\n case 0:\n return new NoopAnimationPlayer();\n case 1:\n return players[0];\n default:\n return new ɵAnimationGroupPlayer(players);\n }\n}\nfunction normalizeKeyframes$1(driver, normalizer, element, keyframes, preStyles = new Map(), postStyles = new Map()) {\n const errors = [];\n const normalizedKeyframes = [];\n let previousOffset = -1;\n let previousKeyframe = null;\n keyframes.forEach(kf => {\n const offset = kf.get('offset');\n const isSameOffset = offset == previousOffset;\n const normalizedKeyframe = (isSameOffset && previousKeyframe) || new Map();\n kf.forEach((val, prop) => {\n let normalizedProp = prop;\n let normalizedValue = val;\n if (prop !== 'offset') {\n normalizedProp = normalizer.normalizePropertyName(normalizedProp, errors);\n switch (normalizedValue) {\n case ɵPRE_STYLE:\n normalizedValue = preStyles.get(prop);\n break;\n case AUTO_STYLE:\n normalizedValue = postStyles.get(prop);\n break;\n default:\n normalizedValue =\n normalizer.normalizeStyleValue(prop, normalizedProp, normalizedValue, errors);\n break;\n }\n }\n normalizedKeyframe.set(normalizedProp, normalizedValue);\n });\n if (!isSameOffset) {\n normalizedKeyframes.push(normalizedKeyframe);\n }\n previousKeyframe = normalizedKeyframe;\n previousOffset = offset;\n });\n if (errors.length) {\n throw animationFailed(errors);\n }\n return normalizedKeyframes;\n}\nfunction listenOnPlayer(player, eventName, event, callback) {\n switch (eventName) {\n case 'start':\n player.onStart(() => callback(event && copyAnimationEvent(event, 'start', player)));\n break;\n case 'done':\n player.onDone(() => callback(event && copyAnimationEvent(event, 'done', player)));\n break;\n case 'destroy':\n player.onDestroy(() => callback(event && copyAnimationEvent(event, 'destroy', player)));\n break;\n }\n}\nfunction copyAnimationEvent(e, phaseName, player) {\n const totalTime = player.totalTime;\n const disabled = player.disabled ? true : false;\n const event = makeAnimationEvent(e.element, e.triggerName, e.fromState, e.toState, phaseName || e.phaseName, totalTime == undefined ? e.totalTime : totalTime, disabled);\n const data = e['_data'];\n if (data != null) {\n event['_data'] = data;\n }\n return event;\n}\nfunction makeAnimationEvent(element, triggerName, fromState, toState, phaseName = '', totalTime = 0, disabled) {\n return { element, triggerName, fromState, toState, phaseName, totalTime, disabled: !!disabled };\n}\nfunction getOrSetDefaultValue(map, key, defaultValue) {\n let value = map.get(key);\n if (!value) {\n map.set(key, value = defaultValue);\n }\n return value;\n}\nfunction parseTimelineCommand(command) {\n const separatorPos = command.indexOf(':');\n const id = command.substring(1, separatorPos);\n const action = command.slice(separatorPos + 1);\n return [id, action];\n}\nlet _contains = (elm1, elm2) => false;\nlet _query = (element, selector, multi) => {\n return [];\n};\nlet _documentElement = null;\nfunction getParentElement(element) {\n const parent = element.parentNode || element.host; // consider host to support shadow DOM\n if (parent === _documentElement) {\n return null;\n }\n return parent;\n}\n// Define utility methods for browsers and platform-server(domino) where Element\n// and utility methods exist.\nconst _isNode = isNode();\nif (_isNode || typeof Element !== 'undefined') {\n if (!isBrowser()) {\n _contains = (elm1, elm2) => elm1.contains(elm2);\n }\n else {\n // Read the document element in an IIFE that's been marked pure to avoid a top-level property\n // read that may prevent tree-shaking.\n _documentElement = /* @__PURE__ */ (() => document.documentElement)();\n _contains = (elm1, elm2) => {\n while (elm2) {\n if (elm2 === elm1) {\n return true;\n }\n elm2 = getParentElement(elm2);\n }\n return false;\n };\n }\n _query = (element, selector, multi) => {\n if (multi) {\n return Array.from(element.querySelectorAll(selector));\n }\n const elem = element.querySelector(selector);\n return elem ? [elem] : [];\n };\n}\nfunction containsVendorPrefix(prop) {\n // Webkit is the only real popular vendor prefix nowadays\n // cc: http://shouldiprefix.com/\n return prop.substring(1, 6) == 'ebkit'; // webkit or Webkit\n}\nlet _CACHED_BODY = null;\nlet _IS_WEBKIT = false;\nfunction validateStyleProperty(prop) {\n if (!_CACHED_BODY) {\n _CACHED_BODY = getBodyNode() || {};\n _IS_WEBKIT = _CACHED_BODY.style ? ('WebkitAppearance' in _CACHED_BODY.style) : false;\n }\n let result = true;\n if (_CACHED_BODY.style && !containsVendorPrefix(prop)) {\n result = prop in _CACHED_BODY.style;\n if (!result && _IS_WEBKIT) {\n const camelProp = 'Webkit' + prop.charAt(0).toUpperCase() + prop.slice(1);\n result = camelProp in _CACHED_BODY.style;\n }\n }\n return result;\n}\nfunction validateWebAnimatableStyleProperty(prop) {\n return ANIMATABLE_PROP_SET.has(prop);\n}\nfunction getBodyNode() {\n if (typeof document != 'undefined') {\n return document.body;\n }\n return null;\n}\nconst containsElement = _contains;\nconst invokeQuery = _query;\nfunction hypenatePropsKeys(original) {\n const newMap = new Map();\n original.forEach((val, prop) => {\n const newProp = prop.replace(/([a-z])([A-Z])/g, '$1-$2');\n newMap.set(newProp, val);\n });\n return newMap;\n}\n\n/**\n * @publicApi\n */\nclass NoopAnimationDriver {\n validateStyleProperty(prop) {\n return validateStyleProperty(prop);\n }\n matchesElement(_element, _selector) {\n // This method is deprecated and no longer in use so we return false.\n return false;\n }\n containsElement(elm1, elm2) {\n return containsElement(elm1, elm2);\n }\n getParentElement(element) {\n return getParentElement(element);\n }\n query(element, selector, multi) {\n return invokeQuery(element, selector, multi);\n }\n computeStyle(element, prop, defaultValue) {\n return defaultValue || '';\n }\n animate(element, keyframes, duration, delay, easing, previousPlayers = [], scrubberAccessRequested) {\n return new NoopAnimationPlayer(duration, delay);\n }\n}\nNoopAnimationDriver.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: NoopAnimationDriver, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nNoopAnimationDriver.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: NoopAnimationDriver });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: NoopAnimationDriver, decorators: [{\n type: Injectable\n }] });\n/**\n * @publicApi\n */\nclass AnimationDriver {\n}\nAnimationDriver.NOOP = ( /* @__PURE__ */new NoopAnimationDriver());\n\nconst ONE_SECOND = 1000;\nconst SUBSTITUTION_EXPR_START = '{{';\nconst SUBSTITUTION_EXPR_END = '}}';\nconst ENTER_CLASSNAME = 'ng-enter';\nconst LEAVE_CLASSNAME = 'ng-leave';\nconst NG_TRIGGER_CLASSNAME = 'ng-trigger';\nconst NG_TRIGGER_SELECTOR = '.ng-trigger';\nconst NG_ANIMATING_CLASSNAME = 'ng-animating';\nconst NG_ANIMATING_SELECTOR = '.ng-animating';\nfunction resolveTimingValue(value) {\n if (typeof value == 'number')\n return value;\n const matches = value.match(/^(-?[\\.\\d]+)(m?s)/);\n if (!matches || matches.length < 2)\n return 0;\n return _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);\n}\nfunction _convertTimeValueToMS(value, unit) {\n switch (unit) {\n case 's':\n return value * ONE_SECOND;\n default: // ms or something else\n return value;\n }\n}\nfunction resolveTiming(timings, errors, allowNegativeValues) {\n return timings.hasOwnProperty('duration') ?\n timings :\n parseTimeExpression(timings, errors, allowNegativeValues);\n}\nfunction parseTimeExpression(exp, errors, allowNegativeValues) {\n const regex = /^(-?[\\.\\d]+)(m?s)(?:\\s+(-?[\\.\\d]+)(m?s))?(?:\\s+([-a-z]+(?:\\(.+?\\))?))?$/i;\n let duration;\n let delay = 0;\n let easing = '';\n if (typeof exp === 'string') {\n const matches = exp.match(regex);\n if (matches === null) {\n errors.push(invalidTimingValue(exp));\n return { duration: 0, delay: 0, easing: '' };\n }\n duration = _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);\n const delayMatch = matches[3];\n if (delayMatch != null) {\n delay = _convertTimeValueToMS(parseFloat(delayMatch), matches[4]);\n }\n const easingVal = matches[5];\n if (easingVal) {\n easing = easingVal;\n }\n }\n else {\n duration = exp;\n }\n if (!allowNegativeValues) {\n let containsErrors = false;\n let startIndex = errors.length;\n if (duration < 0) {\n errors.push(negativeStepValue());\n containsErrors = true;\n }\n if (delay < 0) {\n errors.push(negativeDelayValue());\n containsErrors = true;\n }\n if (containsErrors) {\n errors.splice(startIndex, 0, invalidTimingValue(exp));\n }\n }\n return { duration, delay, easing };\n}\nfunction copyObj(obj, destination = {}) {\n Object.keys(obj).forEach(prop => {\n destination[prop] = obj[prop];\n });\n return destination;\n}\nfunction convertToMap(obj) {\n const styleMap = new Map();\n Object.keys(obj).forEach(prop => {\n const val = obj[prop];\n styleMap.set(prop, val);\n });\n return styleMap;\n}\nfunction normalizeKeyframes(keyframes) {\n if (!keyframes.length) {\n return [];\n }\n if (keyframes[0] instanceof Map) {\n return keyframes;\n }\n return keyframes.map(kf => convertToMap(kf));\n}\nfunction normalizeStyles(styles) {\n const normalizedStyles = new Map();\n if (Array.isArray(styles)) {\n styles.forEach(data => copyStyles(data, normalizedStyles));\n }\n else {\n copyStyles(styles, normalizedStyles);\n }\n return normalizedStyles;\n}\nfunction copyStyles(styles, destination = new Map(), backfill) {\n if (backfill) {\n for (let [prop, val] of backfill) {\n destination.set(prop, val);\n }\n }\n for (let [prop, val] of styles) {\n destination.set(prop, val);\n }\n return destination;\n}\nfunction getStyleAttributeString(element, key, value) {\n // Return the key-value pair string to be added to the style attribute for the\n // given CSS style key.\n if (value) {\n return key + ':' + value + ';';\n }\n else {\n return '';\n }\n}\nfunction writeStyleAttribute(element) {\n // Read the style property of the element and manually reflect it to the\n // style attribute. This is needed because Domino on platform-server doesn't\n // understand the full set of allowed CSS properties and doesn't reflect some\n // of them automatically.\n let styleAttrValue = '';\n for (let i = 0; i < element.style.length; i++) {\n const key = element.style.item(i);\n styleAttrValue += getStyleAttributeString(element, key, element.style.getPropertyValue(key));\n }\n for (const key in element.style) {\n // Skip internal Domino properties that don't need to be reflected.\n if (!element.style.hasOwnProperty(key) || key.startsWith('_')) {\n continue;\n }\n const dashKey = camelCaseToDashCase(key);\n styleAttrValue += getStyleAttributeString(element, dashKey, element.style[key]);\n }\n element.setAttribute('style', styleAttrValue);\n}\nfunction setStyles(element, styles, formerStyles) {\n if (element['style']) {\n styles.forEach((val, prop) => {\n const camelProp = dashCaseToCamelCase(prop);\n if (formerStyles && !formerStyles.has(prop)) {\n formerStyles.set(prop, element.style[camelProp]);\n }\n element.style[camelProp] = val;\n });\n // On the server set the 'style' attribute since it's not automatically reflected.\n if (isNode()) {\n writeStyleAttribute(element);\n }\n }\n}\nfunction eraseStyles(element, styles) {\n if (element['style']) {\n styles.forEach((_, prop) => {\n const camelProp = dashCaseToCamelCase(prop);\n element.style[camelProp] = '';\n });\n // On the server set the 'style' attribute since it's not automatically reflected.\n if (isNode()) {\n writeStyleAttribute(element);\n }\n }\n}\nfunction normalizeAnimationEntry(steps) {\n if (Array.isArray(steps)) {\n if (steps.length == 1)\n return steps[0];\n return sequence(steps);\n }\n return steps;\n}\nfunction validateStyleParams(value, options, errors) {\n const params = options.params || {};\n const matches = extractStyleParams(value);\n if (matches.length) {\n matches.forEach(varName => {\n if (!params.hasOwnProperty(varName)) {\n errors.push(invalidStyleParams(varName));\n }\n });\n }\n}\nconst PARAM_REGEX = new RegExp(`${SUBSTITUTION_EXPR_START}\\\\s*(.+?)\\\\s*${SUBSTITUTION_EXPR_END}`, 'g');\nfunction extractStyleParams(value) {\n let params = [];\n if (typeof value === 'string') {\n let match;\n while (match = PARAM_REGEX.exec(value)) {\n params.push(match[1]);\n }\n PARAM_REGEX.lastIndex = 0;\n }\n return params;\n}\nfunction interpolateParams(value, params, errors) {\n const original = value.toString();\n const str = original.replace(PARAM_REGEX, (_, varName) => {\n let localVal = params[varName];\n // this means that the value was never overridden by the data passed in by the user\n if (localVal == null) {\n errors.push(invalidParamValue(varName));\n localVal = '';\n }\n return localVal.toString();\n });\n // we do this to assert that numeric values stay as they are\n return str == original ? value : str;\n}\nfunction iteratorToArray(iterator) {\n const arr = [];\n let item = iterator.next();\n while (!item.done) {\n arr.push(item.value);\n item = iterator.next();\n }\n return arr;\n}\nconst DASH_CASE_REGEXP = /-+([a-z0-9])/g;\nfunction dashCaseToCamelCase(input) {\n return input.replace(DASH_CASE_REGEXP, (...m) => m[1].toUpperCase());\n}\nfunction camelCaseToDashCase(input) {\n return input.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n}\nfunction allowPreviousPlayerStylesMerge(duration, delay) {\n return duration === 0 || delay === 0;\n}\nfunction balancePreviousStylesIntoKeyframes(element, keyframes, previousStyles) {\n if (previousStyles.size && keyframes.length) {\n let startingKeyframe = keyframes[0];\n let missingStyleProps = [];\n previousStyles.forEach((val, prop) => {\n if (!startingKeyframe.has(prop)) {\n missingStyleProps.push(prop);\n }\n startingKeyframe.set(prop, val);\n });\n if (missingStyleProps.length) {\n for (let i = 1; i < keyframes.length; i++) {\n let kf = keyframes[i];\n missingStyleProps.forEach(prop => kf.set(prop, computeStyle(element, prop)));\n }\n }\n }\n return keyframes;\n}\nfunction visitDslNode(visitor, node, context) {\n switch (node.type) {\n case 7 /* AnimationMetadataType.Trigger */:\n return visitor.visitTrigger(node, context);\n case 0 /* AnimationMetadataType.State */:\n return visitor.visitState(node, context);\n case 1 /* AnimationMetadataType.Transition */:\n return visitor.visitTransition(node, context);\n case 2 /* AnimationMetadataType.Sequence */:\n return visitor.visitSequence(node, context);\n case 3 /* AnimationMetadataType.Group */:\n return visitor.visitGroup(node, context);\n case 4 /* AnimationMetadataType.Animate */:\n return visitor.visitAnimate(node, context);\n case 5 /* AnimationMetadataType.Keyframes */:\n return visitor.visitKeyframes(node, context);\n case 6 /* AnimationMetadataType.Style */:\n return visitor.visitStyle(node, context);\n case 8 /* AnimationMetadataType.Reference */:\n return visitor.visitReference(node, context);\n case 9 /* AnimationMetadataType.AnimateChild */:\n return visitor.visitAnimateChild(node, context);\n case 10 /* AnimationMetadataType.AnimateRef */:\n return visitor.visitAnimateRef(node, context);\n case 11 /* AnimationMetadataType.Query */:\n return visitor.visitQuery(node, context);\n case 12 /* AnimationMetadataType.Stagger */:\n return visitor.visitStagger(node, context);\n default:\n throw invalidNodeType(node.type);\n }\n}\nfunction computeStyle(element, prop) {\n return window.getComputedStyle(element)[prop];\n}\n\nconst NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode;\nfunction createListOfWarnings(warnings) {\n const LINE_START = '\\n - ';\n return `${LINE_START}${warnings.filter(Boolean).map(warning => warning).join(LINE_START)}`;\n}\nfunction warnValidation(warnings) {\n NG_DEV_MODE && console.warn(`animation validation warnings:${createListOfWarnings(warnings)}`);\n}\nfunction warnTriggerBuild(name, warnings) {\n NG_DEV_MODE &&\n console.warn(`The animation trigger \"${name}\" has built with the following warnings:${createListOfWarnings(warnings)}`);\n}\nfunction warnRegister(warnings) {\n NG_DEV_MODE &&\n console.warn(`Animation built with the following warnings:${createListOfWarnings(warnings)}`);\n}\nfunction triggerParsingWarnings(name, warnings) {\n NG_DEV_MODE &&\n console.warn(`Animation parsing for the ${name} trigger presents the following warnings:${createListOfWarnings(warnings)}`);\n}\nfunction pushUnrecognizedPropertiesWarning(warnings, props) {\n if (props.length) {\n warnings.push(`The following provided properties are not recognized: ${props.join(', ')}`);\n }\n}\n\nconst ANY_STATE = '*';\nfunction parseTransitionExpr(transitionValue, errors) {\n const expressions = [];\n if (typeof transitionValue == 'string') {\n transitionValue.split(/\\s*,\\s*/).forEach(str => parseInnerTransitionStr(str, expressions, errors));\n }\n else {\n expressions.push(transitionValue);\n }\n return expressions;\n}\nfunction parseInnerTransitionStr(eventStr, expressions, errors) {\n if (eventStr[0] == ':') {\n const result = parseAnimationAlias(eventStr, errors);\n if (typeof result == 'function') {\n expressions.push(result);\n return;\n }\n eventStr = result;\n }\n const match = eventStr.match(/^(\\*|[-\\w]+)\\s*()\\s*(\\*|[-\\w]+)$/);\n if (match == null || match.length < 4) {\n errors.push(invalidExpression(eventStr));\n return expressions;\n }\n const fromState = match[1];\n const separator = match[2];\n const toState = match[3];\n expressions.push(makeLambdaFromStates(fromState, toState));\n const isFullAnyStateExpr = fromState == ANY_STATE && toState == ANY_STATE;\n if (separator[0] == '<' && !isFullAnyStateExpr) {\n expressions.push(makeLambdaFromStates(toState, fromState));\n }\n}\nfunction parseAnimationAlias(alias, errors) {\n switch (alias) {\n case ':enter':\n return 'void => *';\n case ':leave':\n return '* => void';\n case ':increment':\n return (fromState, toState) => parseFloat(toState) > parseFloat(fromState);\n case ':decrement':\n return (fromState, toState) => parseFloat(toState) < parseFloat(fromState);\n default:\n errors.push(invalidTransitionAlias(alias));\n return '* => *';\n }\n}\n// DO NOT REFACTOR ... keep the follow set instantiations\n// with the values intact (closure compiler for some reason\n// removes follow-up lines that add the values outside of\n// the constructor...\nconst TRUE_BOOLEAN_VALUES = new Set(['true', '1']);\nconst FALSE_BOOLEAN_VALUES = new Set(['false', '0']);\nfunction makeLambdaFromStates(lhs, rhs) {\n const LHS_MATCH_BOOLEAN = TRUE_BOOLEAN_VALUES.has(lhs) || FALSE_BOOLEAN_VALUES.has(lhs);\n const RHS_MATCH_BOOLEAN = TRUE_BOOLEAN_VALUES.has(rhs) || FALSE_BOOLEAN_VALUES.has(rhs);\n return (fromState, toState) => {\n let lhsMatch = lhs == ANY_STATE || lhs == fromState;\n let rhsMatch = rhs == ANY_STATE || rhs == toState;\n if (!lhsMatch && LHS_MATCH_BOOLEAN && typeof fromState === 'boolean') {\n lhsMatch = fromState ? TRUE_BOOLEAN_VALUES.has(lhs) : FALSE_BOOLEAN_VALUES.has(lhs);\n }\n if (!rhsMatch && RHS_MATCH_BOOLEAN && typeof toState === 'boolean') {\n rhsMatch = toState ? TRUE_BOOLEAN_VALUES.has(rhs) : FALSE_BOOLEAN_VALUES.has(rhs);\n }\n return lhsMatch && rhsMatch;\n };\n}\n\nconst SELF_TOKEN = ':self';\nconst SELF_TOKEN_REGEX = new RegExp(`\\s*${SELF_TOKEN}\\s*,?`, 'g');\n/*\n * [Validation]\n * The visitor code below will traverse the animation AST generated by the animation verb functions\n * (the output is a tree of objects) and attempt to perform a series of validations on the data. The\n * following corner-cases will be validated:\n *\n * 1. Overlap of animations\n * Given that a CSS property cannot be animated in more than one place at the same time, it's\n * important that this behavior is detected and validated. The way in which this occurs is that\n * each time a style property is examined, a string-map containing the property will be updated with\n * the start and end times for when the property is used within an animation step.\n *\n * If there are two or more parallel animations that are currently running (these are invoked by the\n * group()) on the same element then the validator will throw an error. Since the start/end timing\n * values are collected for each property then if the current animation step is animating the same\n * property and its timing values fall anywhere into the window of time that the property is\n * currently being animated within then this is what causes an error.\n *\n * 2. Timing values\n * The validator will validate to see if a timing value of `duration delay easing` or\n * `durationNumber` is valid or not.\n *\n * (note that upon validation the code below will replace the timing data with an object containing\n * {duration,delay,easing}.\n *\n * 3. Offset Validation\n * Each of the style() calls are allowed to have an offset value when placed inside of keyframes().\n * Offsets within keyframes() are considered valid when:\n *\n * - No offsets are used at all\n * - Each style() entry contains an offset value\n * - Each offset is between 0 and 1\n * - Each offset is greater to or equal than the previous one\n *\n * Otherwise an error will be thrown.\n */\nfunction buildAnimationAst(driver, metadata, errors, warnings) {\n return new AnimationAstBuilderVisitor(driver).build(metadata, errors, warnings);\n}\nconst ROOT_SELECTOR = '';\nclass AnimationAstBuilderVisitor {\n constructor(_driver) {\n this._driver = _driver;\n }\n build(metadata, errors, warnings) {\n const context = new AnimationAstBuilderContext(errors);\n this._resetContextStyleTimingState(context);\n const ast = visitDslNode(this, normalizeAnimationEntry(metadata), context);\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (context.unsupportedCSSPropertiesFound.size) {\n pushUnrecognizedPropertiesWarning(warnings, [...context.unsupportedCSSPropertiesFound.keys()]);\n }\n }\n return ast;\n }\n _resetContextStyleTimingState(context) {\n context.currentQuerySelector = ROOT_SELECTOR;\n context.collectedStyles = new Map();\n context.collectedStyles.set(ROOT_SELECTOR, new Map());\n context.currentTime = 0;\n }\n visitTrigger(metadata, context) {\n let queryCount = context.queryCount = 0;\n let depCount = context.depCount = 0;\n const states = [];\n const transitions = [];\n if (metadata.name.charAt(0) == '@') {\n context.errors.push(invalidTrigger());\n }\n metadata.definitions.forEach(def => {\n this._resetContextStyleTimingState(context);\n if (def.type == 0 /* AnimationMetadataType.State */) {\n const stateDef = def;\n const name = stateDef.name;\n name.toString().split(/\\s*,\\s*/).forEach(n => {\n stateDef.name = n;\n states.push(this.visitState(stateDef, context));\n });\n stateDef.name = name;\n }\n else if (def.type == 1 /* AnimationMetadataType.Transition */) {\n const transition = this.visitTransition(def, context);\n queryCount += transition.queryCount;\n depCount += transition.depCount;\n transitions.push(transition);\n }\n else {\n context.errors.push(invalidDefinition());\n }\n });\n return {\n type: 7 /* AnimationMetadataType.Trigger */,\n name: metadata.name,\n states,\n transitions,\n queryCount,\n depCount,\n options: null\n };\n }\n visitState(metadata, context) {\n const styleAst = this.visitStyle(metadata.styles, context);\n const astParams = (metadata.options && metadata.options.params) || null;\n if (styleAst.containsDynamicStyles) {\n const missingSubs = new Set();\n const params = astParams || {};\n styleAst.styles.forEach(style => {\n if (style instanceof Map) {\n style.forEach(value => {\n extractStyleParams(value).forEach(sub => {\n if (!params.hasOwnProperty(sub)) {\n missingSubs.add(sub);\n }\n });\n });\n }\n });\n if (missingSubs.size) {\n const missingSubsArr = iteratorToArray(missingSubs.values());\n context.errors.push(invalidState(metadata.name, missingSubsArr));\n }\n }\n return {\n type: 0 /* AnimationMetadataType.State */,\n name: metadata.name,\n style: styleAst,\n options: astParams ? { params: astParams } : null\n };\n }\n visitTransition(metadata, context) {\n context.queryCount = 0;\n context.depCount = 0;\n const animation = visitDslNode(this, normalizeAnimationEntry(metadata.animation), context);\n const matchers = parseTransitionExpr(metadata.expr, context.errors);\n return {\n type: 1 /* AnimationMetadataType.Transition */,\n matchers,\n animation,\n queryCount: context.queryCount,\n depCount: context.depCount,\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitSequence(metadata, context) {\n return {\n type: 2 /* AnimationMetadataType.Sequence */,\n steps: metadata.steps.map(s => visitDslNode(this, s, context)),\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitGroup(metadata, context) {\n const currentTime = context.currentTime;\n let furthestTime = 0;\n const steps = metadata.steps.map(step => {\n context.currentTime = currentTime;\n const innerAst = visitDslNode(this, step, context);\n furthestTime = Math.max(furthestTime, context.currentTime);\n return innerAst;\n });\n context.currentTime = furthestTime;\n return {\n type: 3 /* AnimationMetadataType.Group */,\n steps,\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitAnimate(metadata, context) {\n const timingAst = constructTimingAst(metadata.timings, context.errors);\n context.currentAnimateTimings = timingAst;\n let styleAst;\n let styleMetadata = metadata.styles ? metadata.styles : style({});\n if (styleMetadata.type == 5 /* AnimationMetadataType.Keyframes */) {\n styleAst = this.visitKeyframes(styleMetadata, context);\n }\n else {\n let styleMetadata = metadata.styles;\n let isEmpty = false;\n if (!styleMetadata) {\n isEmpty = true;\n const newStyleData = {};\n if (timingAst.easing) {\n newStyleData['easing'] = timingAst.easing;\n }\n styleMetadata = style(newStyleData);\n }\n context.currentTime += timingAst.duration + timingAst.delay;\n const _styleAst = this.visitStyle(styleMetadata, context);\n _styleAst.isEmptyStep = isEmpty;\n styleAst = _styleAst;\n }\n context.currentAnimateTimings = null;\n return {\n type: 4 /* AnimationMetadataType.Animate */,\n timings: timingAst,\n style: styleAst,\n options: null\n };\n }\n visitStyle(metadata, context) {\n const ast = this._makeStyleAst(metadata, context);\n this._validateStyleAst(ast, context);\n return ast;\n }\n _makeStyleAst(metadata, context) {\n const styles = [];\n const metadataStyles = Array.isArray(metadata.styles) ? metadata.styles : [metadata.styles];\n for (let styleTuple of metadataStyles) {\n if (typeof styleTuple === 'string') {\n if (styleTuple === AUTO_STYLE) {\n styles.push(styleTuple);\n }\n else {\n context.errors.push(invalidStyleValue(styleTuple));\n }\n }\n else {\n styles.push(convertToMap(styleTuple));\n }\n }\n let containsDynamicStyles = false;\n let collectedEasing = null;\n styles.forEach(styleData => {\n if (styleData instanceof Map) {\n if (styleData.has('easing')) {\n collectedEasing = styleData.get('easing');\n styleData.delete('easing');\n }\n if (!containsDynamicStyles) {\n for (let value of styleData.values()) {\n if (value.toString().indexOf(SUBSTITUTION_EXPR_START) >= 0) {\n containsDynamicStyles = true;\n break;\n }\n }\n }\n }\n });\n return {\n type: 6 /* AnimationMetadataType.Style */,\n styles,\n easing: collectedEasing,\n offset: metadata.offset,\n containsDynamicStyles,\n options: null\n };\n }\n _validateStyleAst(ast, context) {\n const timings = context.currentAnimateTimings;\n let endTime = context.currentTime;\n let startTime = context.currentTime;\n if (timings && startTime > 0) {\n startTime -= timings.duration + timings.delay;\n }\n ast.styles.forEach(tuple => {\n if (typeof tuple === 'string')\n return;\n tuple.forEach((value, prop) => {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n if (!this._driver.validateStyleProperty(prop)) {\n tuple.delete(prop);\n context.unsupportedCSSPropertiesFound.add(prop);\n return;\n }\n }\n // This is guaranteed to have a defined Map at this querySelector location making it\n // safe to add the assertion here. It is set as a default empty map in prior methods.\n const collectedStyles = context.collectedStyles.get(context.currentQuerySelector);\n const collectedEntry = collectedStyles.get(prop);\n let updateCollectedStyle = true;\n if (collectedEntry) {\n if (startTime != endTime && startTime >= collectedEntry.startTime &&\n endTime <= collectedEntry.endTime) {\n context.errors.push(invalidParallelAnimation(prop, collectedEntry.startTime, collectedEntry.endTime, startTime, endTime));\n updateCollectedStyle = false;\n }\n // we always choose the smaller start time value since we\n // want to have a record of the entire animation window where\n // the style property is being animated in between\n startTime = collectedEntry.startTime;\n }\n if (updateCollectedStyle) {\n collectedStyles.set(prop, { startTime, endTime });\n }\n if (context.options) {\n validateStyleParams(value, context.options, context.errors);\n }\n });\n });\n }\n visitKeyframes(metadata, context) {\n const ast = { type: 5 /* AnimationMetadataType.Keyframes */, styles: [], options: null };\n if (!context.currentAnimateTimings) {\n context.errors.push(invalidKeyframes());\n return ast;\n }\n const MAX_KEYFRAME_OFFSET = 1;\n let totalKeyframesWithOffsets = 0;\n const offsets = [];\n let offsetsOutOfOrder = false;\n let keyframesOutOfRange = false;\n let previousOffset = 0;\n const keyframes = metadata.steps.map(styles => {\n const style = this._makeStyleAst(styles, context);\n let offsetVal = style.offset != null ? style.offset : consumeOffset(style.styles);\n let offset = 0;\n if (offsetVal != null) {\n totalKeyframesWithOffsets++;\n offset = style.offset = offsetVal;\n }\n keyframesOutOfRange = keyframesOutOfRange || offset < 0 || offset > 1;\n offsetsOutOfOrder = offsetsOutOfOrder || offset < previousOffset;\n previousOffset = offset;\n offsets.push(offset);\n return style;\n });\n if (keyframesOutOfRange) {\n context.errors.push(invalidOffset());\n }\n if (offsetsOutOfOrder) {\n context.errors.push(keyframeOffsetsOutOfOrder());\n }\n const length = metadata.steps.length;\n let generatedOffset = 0;\n if (totalKeyframesWithOffsets > 0 && totalKeyframesWithOffsets < length) {\n context.errors.push(keyframesMissingOffsets());\n }\n else if (totalKeyframesWithOffsets == 0) {\n generatedOffset = MAX_KEYFRAME_OFFSET / (length - 1);\n }\n const limit = length - 1;\n const currentTime = context.currentTime;\n const currentAnimateTimings = context.currentAnimateTimings;\n const animateDuration = currentAnimateTimings.duration;\n keyframes.forEach((kf, i) => {\n const offset = generatedOffset > 0 ? (i == limit ? 1 : (generatedOffset * i)) : offsets[i];\n const durationUpToThisFrame = offset * animateDuration;\n context.currentTime = currentTime + currentAnimateTimings.delay + durationUpToThisFrame;\n currentAnimateTimings.duration = durationUpToThisFrame;\n this._validateStyleAst(kf, context);\n kf.offset = offset;\n ast.styles.push(kf);\n });\n return ast;\n }\n visitReference(metadata, context) {\n return {\n type: 8 /* AnimationMetadataType.Reference */,\n animation: visitDslNode(this, normalizeAnimationEntry(metadata.animation), context),\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitAnimateChild(metadata, context) {\n context.depCount++;\n return {\n type: 9 /* AnimationMetadataType.AnimateChild */,\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitAnimateRef(metadata, context) {\n return {\n type: 10 /* AnimationMetadataType.AnimateRef */,\n animation: this.visitReference(metadata.animation, context),\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitQuery(metadata, context) {\n const parentSelector = context.currentQuerySelector;\n const options = (metadata.options || {});\n context.queryCount++;\n context.currentQuery = metadata;\n const [selector, includeSelf] = normalizeSelector(metadata.selector);\n context.currentQuerySelector =\n parentSelector.length ? (parentSelector + ' ' + selector) : selector;\n getOrSetDefaultValue(context.collectedStyles, context.currentQuerySelector, new Map());\n const animation = visitDslNode(this, normalizeAnimationEntry(metadata.animation), context);\n context.currentQuery = null;\n context.currentQuerySelector = parentSelector;\n return {\n type: 11 /* AnimationMetadataType.Query */,\n selector,\n limit: options.limit || 0,\n optional: !!options.optional,\n includeSelf,\n animation,\n originalSelector: metadata.selector,\n options: normalizeAnimationOptions(metadata.options)\n };\n }\n visitStagger(metadata, context) {\n if (!context.currentQuery) {\n context.errors.push(invalidStagger());\n }\n const timings = metadata.timings === 'full' ?\n { duration: 0, delay: 0, easing: 'full' } :\n resolveTiming(metadata.timings, context.errors, true);\n return {\n type: 12 /* AnimationMetadataType.Stagger */,\n animation: visitDslNode(this, normalizeAnimationEntry(metadata.animation), context),\n timings,\n options: null\n };\n }\n}\nfunction normalizeSelector(selector) {\n const hasAmpersand = selector.split(/\\s*,\\s*/).find(token => token == SELF_TOKEN) ? true : false;\n if (hasAmpersand) {\n selector = selector.replace(SELF_TOKEN_REGEX, '');\n }\n // Note: the :enter and :leave aren't normalized here since those\n // selectors are filled in at runtime during timeline building\n selector = selector.replace(/@\\*/g, NG_TRIGGER_SELECTOR)\n .replace(/@\\w+/g, match => NG_TRIGGER_SELECTOR + '-' + match.slice(1))\n .replace(/:animating/g, NG_ANIMATING_SELECTOR);\n return [selector, hasAmpersand];\n}\nfunction normalizeParams(obj) {\n return obj ? copyObj(obj) : null;\n}\nclass AnimationAstBuilderContext {\n constructor(errors) {\n this.errors = errors;\n this.queryCount = 0;\n this.depCount = 0;\n this.currentTransition = null;\n this.currentQuery = null;\n this.currentQuerySelector = null;\n this.currentAnimateTimings = null;\n this.currentTime = 0;\n this.collectedStyles = new Map();\n this.options = null;\n this.unsupportedCSSPropertiesFound = new Set();\n }\n}\nfunction consumeOffset(styles) {\n if (typeof styles == 'string')\n return null;\n let offset = null;\n if (Array.isArray(styles)) {\n styles.forEach(styleTuple => {\n if (styleTuple instanceof Map && styleTuple.has('offset')) {\n const obj = styleTuple;\n offset = parseFloat(obj.get('offset'));\n obj.delete('offset');\n }\n });\n }\n else if (styles instanceof Map && styles.has('offset')) {\n const obj = styles;\n offset = parseFloat(obj.get('offset'));\n obj.delete('offset');\n }\n return offset;\n}\nfunction constructTimingAst(value, errors) {\n if (value.hasOwnProperty('duration')) {\n return value;\n }\n if (typeof value == 'number') {\n const duration = resolveTiming(value, errors).duration;\n return makeTimingAst(duration, 0, '');\n }\n const strValue = value;\n const isDynamic = strValue.split(/\\s+/).some(v => v.charAt(0) == '{' && v.charAt(1) == '{');\n if (isDynamic) {\n const ast = makeTimingAst(0, 0, '');\n ast.dynamic = true;\n ast.strValue = strValue;\n return ast;\n }\n const timings = resolveTiming(strValue, errors);\n return makeTimingAst(timings.duration, timings.delay, timings.easing);\n}\nfunction normalizeAnimationOptions(options) {\n if (options) {\n options = copyObj(options);\n if (options['params']) {\n options['params'] = normalizeParams(options['params']);\n }\n }\n else {\n options = {};\n }\n return options;\n}\nfunction makeTimingAst(duration, delay, easing) {\n return { duration, delay, easing };\n}\n\nfunction createTimelineInstruction(element, keyframes, preStyleProps, postStyleProps, duration, delay, easing = null, subTimeline = false) {\n return {\n type: 1 /* AnimationTransitionInstructionType.TimelineAnimation */,\n element,\n keyframes,\n preStyleProps,\n postStyleProps,\n duration,\n delay,\n totalTime: duration + delay,\n easing,\n subTimeline\n };\n}\n\nclass ElementInstructionMap {\n constructor() {\n this._map = new Map();\n }\n get(element) {\n return this._map.get(element) || [];\n }\n append(element, instructions) {\n let existingInstructions = this._map.get(element);\n if (!existingInstructions) {\n this._map.set(element, existingInstructions = []);\n }\n existingInstructions.push(...instructions);\n }\n has(element) {\n return this._map.has(element);\n }\n clear() {\n this._map.clear();\n }\n}\n\nconst ONE_FRAME_IN_MILLISECONDS = 1;\nconst ENTER_TOKEN = ':enter';\nconst ENTER_TOKEN_REGEX = new RegExp(ENTER_TOKEN, 'g');\nconst LEAVE_TOKEN = ':leave';\nconst LEAVE_TOKEN_REGEX = new RegExp(LEAVE_TOKEN, 'g');\n/*\n * The code within this file aims to generate web-animations-compatible keyframes from Angular's\n * animation DSL code.\n *\n * The code below will be converted from:\n *\n * ```\n * sequence([\n * style({ opacity: 0 }),\n * animate(1000, style({ opacity: 0 }))\n * ])\n * ```\n *\n * To:\n * ```\n * keyframes = [{ opacity: 0, offset: 0 }, { opacity: 1, offset: 1 }]\n * duration = 1000\n * delay = 0\n * easing = ''\n * ```\n *\n * For this operation to cover the combination of animation verbs (style, animate, group, etc...) a\n * combination of AST traversal and merge-sort-like algorithms are used.\n *\n * [AST Traversal]\n * Each of the animation verbs, when executed, will return an string-map object representing what\n * type of action it is (style, animate, group, etc...) and the data associated with it. This means\n * that when functional composition mix of these functions is evaluated (like in the example above)\n * then it will end up producing a tree of objects representing the animation itself.\n *\n * When this animation object tree is processed by the visitor code below it will visit each of the\n * verb statements within the visitor. And during each visit it will build the context of the\n * animation keyframes by interacting with the `TimelineBuilder`.\n *\n * [TimelineBuilder]\n * This class is responsible for tracking the styles and building a series of keyframe objects for a\n * timeline between a start and end time. The builder starts off with an initial timeline and each\n * time the AST comes across a `group()`, `keyframes()` or a combination of the two within a\n * `sequence()` then it will generate a sub timeline for each step as well as a new one after\n * they are complete.\n *\n * As the AST is traversed, the timing state on each of the timelines will be incremented. If a sub\n * timeline was created (based on one of the cases above) then the parent timeline will attempt to\n * merge the styles used within the sub timelines into itself (only with group() this will happen).\n * This happens with a merge operation (much like how the merge works in mergeSort) and it will only\n * copy the most recently used styles from the sub timelines into the parent timeline. This ensures\n * that if the styles are used later on in another phase of the animation then they will be the most\n * up-to-date values.\n *\n * [How Missing Styles Are Updated]\n * Each timeline has a `backFill` property which is responsible for filling in new styles into\n * already processed keyframes if a new style shows up later within the animation sequence.\n *\n * ```\n * sequence([\n * style({ width: 0 }),\n * animate(1000, style({ width: 100 })),\n * animate(1000, style({ width: 200 })),\n * animate(1000, style({ width: 300 }))\n * animate(1000, style({ width: 400, height: 400 })) // notice how `height` doesn't exist anywhere\n * else\n * ])\n * ```\n *\n * What is happening here is that the `height` value is added later in the sequence, but is missing\n * from all previous animation steps. Therefore when a keyframe is created it would also be missing\n * from all previous keyframes up until where it is first used. For the timeline keyframe generation\n * to properly fill in the style it will place the previous value (the value from the parent\n * timeline) or a default value of `*` into the backFill map. The `copyStyles` method in util.ts\n * handles propagating that backfill map to the styles object.\n *\n * When a sub-timeline is created it will have its own backFill property. This is done so that\n * styles present within the sub-timeline do not accidentally seep into the previous/future timeline\n * keyframes\n *\n * [Validation]\n * The code in this file is not responsible for validation. That functionality happens with within\n * the `AnimationValidatorVisitor` code.\n */\nfunction buildAnimationTimelines(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles = new Map(), finalStyles = new Map(), options, subInstructions, errors = []) {\n return new AnimationTimelineBuilderVisitor().buildKeyframes(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles, finalStyles, options, subInstructions, errors);\n}\nclass AnimationTimelineBuilderVisitor {\n buildKeyframes(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles, finalStyles, options, subInstructions, errors = []) {\n subInstructions = subInstructions || new ElementInstructionMap();\n const context = new AnimationTimelineContext(driver, rootElement, subInstructions, enterClassName, leaveClassName, errors, []);\n context.options = options;\n const delay = options.delay ? resolveTimingValue(options.delay) : 0;\n context.currentTimeline.delayNextStep(delay);\n context.currentTimeline.setStyles([startingStyles], null, context.errors, options);\n visitDslNode(this, ast, context);\n // this checks to see if an actual animation happened\n const timelines = context.timelines.filter(timeline => timeline.containsAnimation());\n // note: we just want to apply the final styles for the rootElement, so we do not\n // just apply the styles to the last timeline but the last timeline which\n // element is the root one (basically `*`-styles are replaced with the actual\n // state style values only for the root element)\n if (timelines.length && finalStyles.size) {\n let lastRootTimeline;\n for (let i = timelines.length - 1; i >= 0; i--) {\n const timeline = timelines[i];\n if (timeline.element === rootElement) {\n lastRootTimeline = timeline;\n break;\n }\n }\n if (lastRootTimeline && !lastRootTimeline.allowOnlyTimelineStyles()) {\n lastRootTimeline.setStyles([finalStyles], null, context.errors, options);\n }\n }\n return timelines.length ?\n timelines.map(timeline => timeline.buildKeyframes()) :\n [createTimelineInstruction(rootElement, [], [], [], 0, delay, '', false)];\n }\n visitTrigger(ast, context) {\n // these values are not visited in this AST\n }\n visitState(ast, context) {\n // these values are not visited in this AST\n }\n visitTransition(ast, context) {\n // these values are not visited in this AST\n }\n visitAnimateChild(ast, context) {\n const elementInstructions = context.subInstructions.get(context.element);\n if (elementInstructions) {\n const innerContext = context.createSubContext(ast.options);\n const startTime = context.currentTimeline.currentTime;\n const endTime = this._visitSubInstructions(elementInstructions, innerContext, innerContext.options);\n if (startTime != endTime) {\n // we do this on the upper context because we created a sub context for\n // the sub child animations\n context.transformIntoNewTimeline(endTime);\n }\n }\n context.previousNode = ast;\n }\n visitAnimateRef(ast, context) {\n const innerContext = context.createSubContext(ast.options);\n innerContext.transformIntoNewTimeline();\n this._applyAnimationRefDelays([ast.options, ast.animation.options], context, innerContext);\n this.visitReference(ast.animation, innerContext);\n context.transformIntoNewTimeline(innerContext.currentTimeline.currentTime);\n context.previousNode = ast;\n }\n _applyAnimationRefDelays(animationsRefsOptions, context, innerContext) {\n for (const animationRefOptions of animationsRefsOptions) {\n const animationDelay = animationRefOptions?.delay;\n if (animationDelay) {\n const animationDelayValue = typeof animationDelay === 'number' ?\n animationDelay :\n resolveTimingValue(interpolateParams(animationDelay, animationRefOptions?.params ?? {}, context.errors));\n innerContext.delayNextStep(animationDelayValue);\n }\n }\n }\n _visitSubInstructions(instructions, context, options) {\n const startTime = context.currentTimeline.currentTime;\n let furthestTime = startTime;\n // this is a special-case for when a user wants to skip a sub\n // animation from being fired entirely.\n const duration = options.duration != null ? resolveTimingValue(options.duration) : null;\n const delay = options.delay != null ? resolveTimingValue(options.delay) : null;\n if (duration !== 0) {\n instructions.forEach(instruction => {\n const instructionTimings = context.appendInstructionToTimeline(instruction, duration, delay);\n furthestTime =\n Math.max(furthestTime, instructionTimings.duration + instructionTimings.delay);\n });\n }\n return furthestTime;\n }\n visitReference(ast, context) {\n context.updateOptions(ast.options, true);\n visitDslNode(this, ast.animation, context);\n context.previousNode = ast;\n }\n visitSequence(ast, context) {\n const subContextCount = context.subContextCount;\n let ctx = context;\n const options = ast.options;\n if (options && (options.params || options.delay)) {\n ctx = context.createSubContext(options);\n ctx.transformIntoNewTimeline();\n if (options.delay != null) {\n if (ctx.previousNode.type == 6 /* AnimationMetadataType.Style */) {\n ctx.currentTimeline.snapshotCurrentStyles();\n ctx.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n }\n const delay = resolveTimingValue(options.delay);\n ctx.delayNextStep(delay);\n }\n }\n if (ast.steps.length) {\n ast.steps.forEach(s => visitDslNode(this, s, ctx));\n // this is here just in case the inner steps only contain or end with a style() call\n ctx.currentTimeline.applyStylesToKeyframe();\n // this means that some animation function within the sequence\n // ended up creating a sub timeline (which means the current\n // timeline cannot overlap with the contents of the sequence)\n if (ctx.subContextCount > subContextCount) {\n ctx.transformIntoNewTimeline();\n }\n }\n context.previousNode = ast;\n }\n visitGroup(ast, context) {\n const innerTimelines = [];\n let furthestTime = context.currentTimeline.currentTime;\n const delay = ast.options && ast.options.delay ? resolveTimingValue(ast.options.delay) : 0;\n ast.steps.forEach(s => {\n const innerContext = context.createSubContext(ast.options);\n if (delay) {\n innerContext.delayNextStep(delay);\n }\n visitDslNode(this, s, innerContext);\n furthestTime = Math.max(furthestTime, innerContext.currentTimeline.currentTime);\n innerTimelines.push(innerContext.currentTimeline);\n });\n // this operation is run after the AST loop because otherwise\n // if the parent timeline's collected styles were updated then\n // it would pass in invalid data into the new-to-be forked items\n innerTimelines.forEach(timeline => context.currentTimeline.mergeTimelineCollectedStyles(timeline));\n context.transformIntoNewTimeline(furthestTime);\n context.previousNode = ast;\n }\n _visitTiming(ast, context) {\n if (ast.dynamic) {\n const strValue = ast.strValue;\n const timingValue = context.params ? interpolateParams(strValue, context.params, context.errors) : strValue;\n return resolveTiming(timingValue, context.errors);\n }\n else {\n return { duration: ast.duration, delay: ast.delay, easing: ast.easing };\n }\n }\n visitAnimate(ast, context) {\n const timings = context.currentAnimateTimings = this._visitTiming(ast.timings, context);\n const timeline = context.currentTimeline;\n if (timings.delay) {\n context.incrementTime(timings.delay);\n timeline.snapshotCurrentStyles();\n }\n const style = ast.style;\n if (style.type == 5 /* AnimationMetadataType.Keyframes */) {\n this.visitKeyframes(style, context);\n }\n else {\n context.incrementTime(timings.duration);\n this.visitStyle(style, context);\n timeline.applyStylesToKeyframe();\n }\n context.currentAnimateTimings = null;\n context.previousNode = ast;\n }\n visitStyle(ast, context) {\n const timeline = context.currentTimeline;\n const timings = context.currentAnimateTimings;\n // this is a special case for when a style() call\n // directly follows an animate() call (but not inside of an animate() call)\n if (!timings && timeline.hasCurrentStyleProperties()) {\n timeline.forwardFrame();\n }\n const easing = (timings && timings.easing) || ast.easing;\n if (ast.isEmptyStep) {\n timeline.applyEmptyStep(easing);\n }\n else {\n timeline.setStyles(ast.styles, easing, context.errors, context.options);\n }\n context.previousNode = ast;\n }\n visitKeyframes(ast, context) {\n const currentAnimateTimings = context.currentAnimateTimings;\n const startTime = (context.currentTimeline).duration;\n const duration = currentAnimateTimings.duration;\n const innerContext = context.createSubContext();\n const innerTimeline = innerContext.currentTimeline;\n innerTimeline.easing = currentAnimateTimings.easing;\n ast.styles.forEach(step => {\n const offset = step.offset || 0;\n innerTimeline.forwardTime(offset * duration);\n innerTimeline.setStyles(step.styles, step.easing, context.errors, context.options);\n innerTimeline.applyStylesToKeyframe();\n });\n // this will ensure that the parent timeline gets all the styles from\n // the child even if the new timeline below is not used\n context.currentTimeline.mergeTimelineCollectedStyles(innerTimeline);\n // we do this because the window between this timeline and the sub timeline\n // should ensure that the styles within are exactly the same as they were before\n context.transformIntoNewTimeline(startTime + duration);\n context.previousNode = ast;\n }\n visitQuery(ast, context) {\n // in the event that the first step before this is a style step we need\n // to ensure the styles are applied before the children are animated\n const startTime = context.currentTimeline.currentTime;\n const options = (ast.options || {});\n const delay = options.delay ? resolveTimingValue(options.delay) : 0;\n if (delay &&\n (context.previousNode.type === 6 /* AnimationMetadataType.Style */ ||\n (startTime == 0 && context.currentTimeline.hasCurrentStyleProperties()))) {\n context.currentTimeline.snapshotCurrentStyles();\n context.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n }\n let furthestTime = startTime;\n const elms = context.invokeQuery(ast.selector, ast.originalSelector, ast.limit, ast.includeSelf, options.optional ? true : false, context.errors);\n context.currentQueryTotal = elms.length;\n let sameElementTimeline = null;\n elms.forEach((element, i) => {\n context.currentQueryIndex = i;\n const innerContext = context.createSubContext(ast.options, element);\n if (delay) {\n innerContext.delayNextStep(delay);\n }\n if (element === context.element) {\n sameElementTimeline = innerContext.currentTimeline;\n }\n visitDslNode(this, ast.animation, innerContext);\n // this is here just incase the inner steps only contain or end\n // with a style() call (which is here to signal that this is a preparatory\n // call to style an element before it is animated again)\n innerContext.currentTimeline.applyStylesToKeyframe();\n const endTime = innerContext.currentTimeline.currentTime;\n furthestTime = Math.max(furthestTime, endTime);\n });\n context.currentQueryIndex = 0;\n context.currentQueryTotal = 0;\n context.transformIntoNewTimeline(furthestTime);\n if (sameElementTimeline) {\n context.currentTimeline.mergeTimelineCollectedStyles(sameElementTimeline);\n context.currentTimeline.snapshotCurrentStyles();\n }\n context.previousNode = ast;\n }\n visitStagger(ast, context) {\n const parentContext = context.parentContext;\n const tl = context.currentTimeline;\n const timings = ast.timings;\n const duration = Math.abs(timings.duration);\n const maxTime = duration * (context.currentQueryTotal - 1);\n let delay = duration * context.currentQueryIndex;\n let staggerTransformer = timings.duration < 0 ? 'reverse' : timings.easing;\n switch (staggerTransformer) {\n case 'reverse':\n delay = maxTime - delay;\n break;\n case 'full':\n delay = parentContext.currentStaggerTime;\n break;\n }\n const timeline = context.currentTimeline;\n if (delay) {\n timeline.delayNextStep(delay);\n }\n const startingTime = timeline.currentTime;\n visitDslNode(this, ast.animation, context);\n context.previousNode = ast;\n // time = duration + delay\n // the reason why this computation is so complex is because\n // the inner timeline may either have a delay value or a stretched\n // keyframe depending on if a subtimeline is not used or is used.\n parentContext.currentStaggerTime =\n (tl.currentTime - startingTime) + (tl.startTime - parentContext.currentTimeline.startTime);\n }\n}\nconst DEFAULT_NOOP_PREVIOUS_NODE = {};\nclass AnimationTimelineContext {\n constructor(_driver, element, subInstructions, _enterClassName, _leaveClassName, errors, timelines, initialTimeline) {\n this._driver = _driver;\n this.element = element;\n this.subInstructions = subInstructions;\n this._enterClassName = _enterClassName;\n this._leaveClassName = _leaveClassName;\n this.errors = errors;\n this.timelines = timelines;\n this.parentContext = null;\n this.currentAnimateTimings = null;\n this.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n this.subContextCount = 0;\n this.options = {};\n this.currentQueryIndex = 0;\n this.currentQueryTotal = 0;\n this.currentStaggerTime = 0;\n this.currentTimeline = initialTimeline || new TimelineBuilder(this._driver, element, 0);\n timelines.push(this.currentTimeline);\n }\n get params() {\n return this.options.params;\n }\n updateOptions(options, skipIfExists) {\n if (!options)\n return;\n const newOptions = options;\n let optionsToUpdate = this.options;\n // NOTE: this will get patched up when other animation methods support duration overrides\n if (newOptions.duration != null) {\n optionsToUpdate.duration = resolveTimingValue(newOptions.duration);\n }\n if (newOptions.delay != null) {\n optionsToUpdate.delay = resolveTimingValue(newOptions.delay);\n }\n const newParams = newOptions.params;\n if (newParams) {\n let paramsToUpdate = optionsToUpdate.params;\n if (!paramsToUpdate) {\n paramsToUpdate = this.options.params = {};\n }\n Object.keys(newParams).forEach(name => {\n if (!skipIfExists || !paramsToUpdate.hasOwnProperty(name)) {\n paramsToUpdate[name] = interpolateParams(newParams[name], paramsToUpdate, this.errors);\n }\n });\n }\n }\n _copyOptions() {\n const options = {};\n if (this.options) {\n const oldParams = this.options.params;\n if (oldParams) {\n const params = options['params'] = {};\n Object.keys(oldParams).forEach(name => {\n params[name] = oldParams[name];\n });\n }\n }\n return options;\n }\n createSubContext(options = null, element, newTime) {\n const target = element || this.element;\n const context = new AnimationTimelineContext(this._driver, target, this.subInstructions, this._enterClassName, this._leaveClassName, this.errors, this.timelines, this.currentTimeline.fork(target, newTime || 0));\n context.previousNode = this.previousNode;\n context.currentAnimateTimings = this.currentAnimateTimings;\n context.options = this._copyOptions();\n context.updateOptions(options);\n context.currentQueryIndex = this.currentQueryIndex;\n context.currentQueryTotal = this.currentQueryTotal;\n context.parentContext = this;\n this.subContextCount++;\n return context;\n }\n transformIntoNewTimeline(newTime) {\n this.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n this.currentTimeline = this.currentTimeline.fork(this.element, newTime);\n this.timelines.push(this.currentTimeline);\n return this.currentTimeline;\n }\n appendInstructionToTimeline(instruction, duration, delay) {\n const updatedTimings = {\n duration: duration != null ? duration : instruction.duration,\n delay: this.currentTimeline.currentTime + (delay != null ? delay : 0) + instruction.delay,\n easing: ''\n };\n const builder = new SubTimelineBuilder(this._driver, instruction.element, instruction.keyframes, instruction.preStyleProps, instruction.postStyleProps, updatedTimings, instruction.stretchStartingKeyframe);\n this.timelines.push(builder);\n return updatedTimings;\n }\n incrementTime(time) {\n this.currentTimeline.forwardTime(this.currentTimeline.duration + time);\n }\n delayNextStep(delay) {\n // negative delays are not yet supported\n if (delay > 0) {\n this.currentTimeline.delayNextStep(delay);\n }\n }\n invokeQuery(selector, originalSelector, limit, includeSelf, optional, errors) {\n let results = [];\n if (includeSelf) {\n results.push(this.element);\n }\n if (selector.length > 0) { // only if :self is used then the selector can be empty\n selector = selector.replace(ENTER_TOKEN_REGEX, '.' + this._enterClassName);\n selector = selector.replace(LEAVE_TOKEN_REGEX, '.' + this._leaveClassName);\n const multi = limit != 1;\n let elements = this._driver.query(this.element, selector, multi);\n if (limit !== 0) {\n elements = limit < 0 ? elements.slice(elements.length + limit, elements.length) :\n elements.slice(0, limit);\n }\n results.push(...elements);\n }\n if (!optional && results.length == 0) {\n errors.push(invalidQuery(originalSelector));\n }\n return results;\n }\n}\nclass TimelineBuilder {\n constructor(_driver, element, startTime, _elementTimelineStylesLookup) {\n this._driver = _driver;\n this.element = element;\n this.startTime = startTime;\n this._elementTimelineStylesLookup = _elementTimelineStylesLookup;\n this.duration = 0;\n this._previousKeyframe = new Map();\n this._currentKeyframe = new Map();\n this._keyframes = new Map();\n this._styleSummary = new Map();\n this._localTimelineStyles = new Map();\n this._pendingStyles = new Map();\n this._backFill = new Map();\n this._currentEmptyStepKeyframe = null;\n if (!this._elementTimelineStylesLookup) {\n this._elementTimelineStylesLookup = new Map();\n }\n this._globalTimelineStyles = this._elementTimelineStylesLookup.get(element);\n if (!this._globalTimelineStyles) {\n this._globalTimelineStyles = this._localTimelineStyles;\n this._elementTimelineStylesLookup.set(element, this._localTimelineStyles);\n }\n this._loadKeyframe();\n }\n containsAnimation() {\n switch (this._keyframes.size) {\n case 0:\n return false;\n case 1:\n return this.hasCurrentStyleProperties();\n default:\n return true;\n }\n }\n hasCurrentStyleProperties() {\n return this._currentKeyframe.size > 0;\n }\n get currentTime() {\n return this.startTime + this.duration;\n }\n delayNextStep(delay) {\n // in the event that a style() step is placed right before a stagger()\n // and that style() step is the very first style() value in the animation\n // then we need to make a copy of the keyframe [0, copy, 1] so that the delay\n // properly applies the style() values to work with the stagger...\n const hasPreStyleStep = this._keyframes.size === 1 && this._pendingStyles.size;\n if (this.duration || hasPreStyleStep) {\n this.forwardTime(this.currentTime + delay);\n if (hasPreStyleStep) {\n this.snapshotCurrentStyles();\n }\n }\n else {\n this.startTime += delay;\n }\n }\n fork(element, currentTime) {\n this.applyStylesToKeyframe();\n return new TimelineBuilder(this._driver, element, currentTime || this.currentTime, this._elementTimelineStylesLookup);\n }\n _loadKeyframe() {\n if (this._currentKeyframe) {\n this._previousKeyframe = this._currentKeyframe;\n }\n this._currentKeyframe = this._keyframes.get(this.duration);\n if (!this._currentKeyframe) {\n this._currentKeyframe = new Map();\n this._keyframes.set(this.duration, this._currentKeyframe);\n }\n }\n forwardFrame() {\n this.duration += ONE_FRAME_IN_MILLISECONDS;\n this._loadKeyframe();\n }\n forwardTime(time) {\n this.applyStylesToKeyframe();\n this.duration = time;\n this._loadKeyframe();\n }\n _updateStyle(prop, value) {\n this._localTimelineStyles.set(prop, value);\n this._globalTimelineStyles.set(prop, value);\n this._styleSummary.set(prop, { time: this.currentTime, value });\n }\n allowOnlyTimelineStyles() {\n return this._currentEmptyStepKeyframe !== this._currentKeyframe;\n }\n applyEmptyStep(easing) {\n if (easing) {\n this._previousKeyframe.set('easing', easing);\n }\n // special case for animate(duration):\n // all missing styles are filled with a `*` value then\n // if any destination styles are filled in later on the same\n // keyframe then they will override the overridden styles\n // We use `_globalTimelineStyles` here because there may be\n // styles in previous keyframes that are not present in this timeline\n for (let [prop, value] of this._globalTimelineStyles) {\n this._backFill.set(prop, value || AUTO_STYLE);\n this._currentKeyframe.set(prop, AUTO_STYLE);\n }\n this._currentEmptyStepKeyframe = this._currentKeyframe;\n }\n setStyles(input, easing, errors, options) {\n if (easing) {\n this._previousKeyframe.set('easing', easing);\n }\n const params = (options && options.params) || {};\n const styles = flattenStyles(input, this._globalTimelineStyles);\n for (let [prop, value] of styles) {\n const val = interpolateParams(value, params, errors);\n this._pendingStyles.set(prop, val);\n if (!this._localTimelineStyles.has(prop)) {\n this._backFill.set(prop, this._globalTimelineStyles.get(prop) ?? AUTO_STYLE);\n }\n this._updateStyle(prop, val);\n }\n }\n applyStylesToKeyframe() {\n if (this._pendingStyles.size == 0)\n return;\n this._pendingStyles.forEach((val, prop) => {\n this._currentKeyframe.set(prop, val);\n });\n this._pendingStyles.clear();\n this._localTimelineStyles.forEach((val, prop) => {\n if (!this._currentKeyframe.has(prop)) {\n this._currentKeyframe.set(prop, val);\n }\n });\n }\n snapshotCurrentStyles() {\n for (let [prop, val] of this._localTimelineStyles) {\n this._pendingStyles.set(prop, val);\n this._updateStyle(prop, val);\n }\n }\n getFinalKeyframe() {\n return this._keyframes.get(this.duration);\n }\n get properties() {\n const properties = [];\n for (let prop in this._currentKeyframe) {\n properties.push(prop);\n }\n return properties;\n }\n mergeTimelineCollectedStyles(timeline) {\n timeline._styleSummary.forEach((details1, prop) => {\n const details0 = this._styleSummary.get(prop);\n if (!details0 || details1.time > details0.time) {\n this._updateStyle(prop, details1.value);\n }\n });\n }\n buildKeyframes() {\n this.applyStylesToKeyframe();\n const preStyleProps = new Set();\n const postStyleProps = new Set();\n const isEmpty = this._keyframes.size === 1 && this.duration === 0;\n let finalKeyframes = [];\n this._keyframes.forEach((keyframe, time) => {\n const finalKeyframe = copyStyles(keyframe, new Map(), this._backFill);\n finalKeyframe.forEach((value, prop) => {\n if (value === ɵPRE_STYLE) {\n preStyleProps.add(prop);\n }\n else if (value === AUTO_STYLE) {\n postStyleProps.add(prop);\n }\n });\n if (!isEmpty) {\n finalKeyframe.set('offset', time / this.duration);\n }\n finalKeyframes.push(finalKeyframe);\n });\n const preProps = preStyleProps.size ? iteratorToArray(preStyleProps.values()) : [];\n const postProps = postStyleProps.size ? iteratorToArray(postStyleProps.values()) : [];\n // special case for a 0-second animation (which is designed just to place styles onscreen)\n if (isEmpty) {\n const kf0 = finalKeyframes[0];\n const kf1 = new Map(kf0);\n kf0.set('offset', 0);\n kf1.set('offset', 1);\n finalKeyframes = [kf0, kf1];\n }\n return createTimelineInstruction(this.element, finalKeyframes, preProps, postProps, this.duration, this.startTime, this.easing, false);\n }\n}\nclass SubTimelineBuilder extends TimelineBuilder {\n constructor(driver, element, keyframes, preStyleProps, postStyleProps, timings, _stretchStartingKeyframe = false) {\n super(driver, element, timings.delay);\n this.keyframes = keyframes;\n this.preStyleProps = preStyleProps;\n this.postStyleProps = postStyleProps;\n this._stretchStartingKeyframe = _stretchStartingKeyframe;\n this.timings = { duration: timings.duration, delay: timings.delay, easing: timings.easing };\n }\n containsAnimation() {\n return this.keyframes.length > 1;\n }\n buildKeyframes() {\n let keyframes = this.keyframes;\n let { delay, duration, easing } = this.timings;\n if (this._stretchStartingKeyframe && delay) {\n const newKeyframes = [];\n const totalTime = duration + delay;\n const startingGap = delay / totalTime;\n // the original starting keyframe now starts once the delay is done\n const newFirstKeyframe = copyStyles(keyframes[0]);\n newFirstKeyframe.set('offset', 0);\n newKeyframes.push(newFirstKeyframe);\n const oldFirstKeyframe = copyStyles(keyframes[0]);\n oldFirstKeyframe.set('offset', roundOffset(startingGap));\n newKeyframes.push(oldFirstKeyframe);\n /*\n When the keyframe is stretched then it means that the delay before the animation\n starts is gone. Instead the first keyframe is placed at the start of the animation\n and it is then copied to where it starts when the original delay is over. This basically\n means nothing animates during that delay, but the styles are still rendered. For this\n to work the original offset values that exist in the original keyframes must be \"warped\"\n so that they can take the new keyframe + delay into account.\n \n delay=1000, duration=1000, keyframes = 0 .5 1\n \n turns into\n \n delay=0, duration=2000, keyframes = 0 .33 .66 1\n */\n // offsets between 1 ... n -1 are all warped by the keyframe stretch\n const limit = keyframes.length - 1;\n for (let i = 1; i <= limit; i++) {\n let kf = copyStyles(keyframes[i]);\n const oldOffset = kf.get('offset');\n const timeAtKeyframe = delay + oldOffset * duration;\n kf.set('offset', roundOffset(timeAtKeyframe / totalTime));\n newKeyframes.push(kf);\n }\n // the new starting keyframe should be added at the start\n duration = totalTime;\n delay = 0;\n easing = '';\n keyframes = newKeyframes;\n }\n return createTimelineInstruction(this.element, keyframes, this.preStyleProps, this.postStyleProps, duration, delay, easing, true);\n }\n}\nfunction roundOffset(offset, decimalPoints = 3) {\n const mult = Math.pow(10, decimalPoints - 1);\n return Math.round(offset * mult) / mult;\n}\nfunction flattenStyles(input, allStyles) {\n const styles = new Map();\n let allProperties;\n input.forEach(token => {\n if (token === '*') {\n allProperties = allProperties || allStyles.keys();\n for (let prop of allProperties) {\n styles.set(prop, AUTO_STYLE);\n }\n }\n else {\n copyStyles(token, styles);\n }\n });\n return styles;\n}\n\nclass Animation {\n constructor(_driver, input) {\n this._driver = _driver;\n const errors = [];\n const warnings = [];\n const ast = buildAnimationAst(_driver, input, errors, warnings);\n if (errors.length) {\n throw validationFailed(errors);\n }\n if (warnings.length) {\n warnValidation(warnings);\n }\n this._animationAst = ast;\n }\n buildTimelines(element, startingStyles, destinationStyles, options, subInstructions) {\n const start = Array.isArray(startingStyles) ? normalizeStyles(startingStyles) :\n startingStyles;\n const dest = Array.isArray(destinationStyles) ? normalizeStyles(destinationStyles) :\n destinationStyles;\n const errors = [];\n subInstructions = subInstructions || new ElementInstructionMap();\n const result = buildAnimationTimelines(this._driver, element, this._animationAst, ENTER_CLASSNAME, LEAVE_CLASSNAME, start, dest, options, subInstructions, errors);\n if (errors.length) {\n throw buildingFailed(errors);\n }\n return result;\n }\n}\n\n/**\n * @publicApi\n */\nclass AnimationStyleNormalizer {\n}\n/**\n * @publicApi\n */\nclass NoopAnimationStyleNormalizer {\n normalizePropertyName(propertyName, errors) {\n return propertyName;\n }\n normalizeStyleValue(userProvidedProperty, normalizedProperty, value, errors) {\n return value;\n }\n}\n\nconst DIMENSIONAL_PROP_SET = new Set([\n 'width',\n 'height',\n 'minWidth',\n 'minHeight',\n 'maxWidth',\n 'maxHeight',\n 'left',\n 'top',\n 'bottom',\n 'right',\n 'fontSize',\n 'outlineWidth',\n 'outlineOffset',\n 'paddingTop',\n 'paddingLeft',\n 'paddingBottom',\n 'paddingRight',\n 'marginTop',\n 'marginLeft',\n 'marginBottom',\n 'marginRight',\n 'borderRadius',\n 'borderWidth',\n 'borderTopWidth',\n 'borderLeftWidth',\n 'borderRightWidth',\n 'borderBottomWidth',\n 'textIndent',\n 'perspective'\n]);\nclass WebAnimationsStyleNormalizer extends AnimationStyleNormalizer {\n normalizePropertyName(propertyName, errors) {\n return dashCaseToCamelCase(propertyName);\n }\n normalizeStyleValue(userProvidedProperty, normalizedProperty, value, errors) {\n let unit = '';\n const strVal = value.toString().trim();\n if (DIMENSIONAL_PROP_SET.has(normalizedProperty) && value !== 0 && value !== '0') {\n if (typeof value === 'number') {\n unit = 'px';\n }\n else {\n const valAndSuffixMatch = value.match(/^[+-]?[\\d\\.]+([a-z]*)$/);\n if (valAndSuffixMatch && valAndSuffixMatch[1].length == 0) {\n errors.push(invalidCssUnitValue(userProvidedProperty, value));\n }\n }\n }\n return strVal + unit;\n }\n}\n\nfunction createTransitionInstruction(element, triggerName, fromState, toState, isRemovalTransition, fromStyles, toStyles, timelines, queriedElements, preStyleProps, postStyleProps, totalTime, errors) {\n return {\n type: 0 /* AnimationTransitionInstructionType.TransitionAnimation */,\n element,\n triggerName,\n isRemovalTransition,\n fromState,\n fromStyles,\n toState,\n toStyles,\n timelines,\n queriedElements,\n preStyleProps,\n postStyleProps,\n totalTime,\n errors\n };\n}\n\nconst EMPTY_OBJECT = {};\nclass AnimationTransitionFactory {\n constructor(_triggerName, ast, _stateStyles) {\n this._triggerName = _triggerName;\n this.ast = ast;\n this._stateStyles = _stateStyles;\n }\n match(currentState, nextState, element, params) {\n return oneOrMoreTransitionsMatch(this.ast.matchers, currentState, nextState, element, params);\n }\n buildStyles(stateName, params, errors) {\n let styler = this._stateStyles.get('*');\n if (stateName !== undefined) {\n styler = this._stateStyles.get(stateName?.toString()) || styler;\n }\n return styler ? styler.buildStyles(params, errors) : new Map();\n }\n build(driver, element, currentState, nextState, enterClassName, leaveClassName, currentOptions, nextOptions, subInstructions, skipAstBuild) {\n const errors = [];\n const transitionAnimationParams = this.ast.options && this.ast.options.params || EMPTY_OBJECT;\n const currentAnimationParams = currentOptions && currentOptions.params || EMPTY_OBJECT;\n const currentStateStyles = this.buildStyles(currentState, currentAnimationParams, errors);\n const nextAnimationParams = nextOptions && nextOptions.params || EMPTY_OBJECT;\n const nextStateStyles = this.buildStyles(nextState, nextAnimationParams, errors);\n const queriedElements = new Set();\n const preStyleMap = new Map();\n const postStyleMap = new Map();\n const isRemoval = nextState === 'void';\n const animationOptions = {\n params: applyParamDefaults(nextAnimationParams, transitionAnimationParams),\n delay: this.ast.options?.delay,\n };\n const timelines = skipAstBuild ?\n [] :\n buildAnimationTimelines(driver, element, this.ast.animation, enterClassName, leaveClassName, currentStateStyles, nextStateStyles, animationOptions, subInstructions, errors);\n let totalTime = 0;\n timelines.forEach(tl => {\n totalTime = Math.max(tl.duration + tl.delay, totalTime);\n });\n if (errors.length) {\n return createTransitionInstruction(element, this._triggerName, currentState, nextState, isRemoval, currentStateStyles, nextStateStyles, [], [], preStyleMap, postStyleMap, totalTime, errors);\n }\n timelines.forEach(tl => {\n const elm = tl.element;\n const preProps = getOrSetDefaultValue(preStyleMap, elm, new Set());\n tl.preStyleProps.forEach(prop => preProps.add(prop));\n const postProps = getOrSetDefaultValue(postStyleMap, elm, new Set());\n tl.postStyleProps.forEach(prop => postProps.add(prop));\n if (elm !== element) {\n queriedElements.add(elm);\n }\n });\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n checkNonAnimatableInTimelines(timelines, this._triggerName, driver);\n }\n const queriedElementsList = iteratorToArray(queriedElements.values());\n return createTransitionInstruction(element, this._triggerName, currentState, nextState, isRemoval, currentStateStyles, nextStateStyles, timelines, queriedElementsList, preStyleMap, postStyleMap, totalTime);\n }\n}\n/**\n * Checks inside a set of timelines if they try to animate a css property which is not considered\n * animatable, in that case it prints a warning on the console.\n * Besides that the function doesn't have any other effect.\n *\n * Note: this check is done here after the timelines are built instead of doing on a lower level so\n * that we can make sure that the warning appears only once per instruction (we can aggregate here\n * all the issues instead of finding them separately).\n *\n * @param timelines The built timelines for the current instruction.\n * @param triggerName The name of the trigger for the current instruction.\n * @param driver Animation driver used to perform the check.\n *\n */\nfunction checkNonAnimatableInTimelines(timelines, triggerName, driver) {\n if (!driver.validateAnimatableStyleProperty) {\n return;\n }\n const allowedNonAnimatableProps = new Set([\n // 'easing' is a utility/synthetic prop we use to represent\n // easing functions, it represents a property of the animation\n // which is not animatable but different values can be used\n // in different steps\n 'easing'\n ]);\n const invalidNonAnimatableProps = new Set();\n timelines.forEach(({ keyframes }) => {\n const nonAnimatablePropsInitialValues = new Map();\n keyframes.forEach(keyframe => {\n const entriesToCheck = Array.from(keyframe.entries()).filter(([prop]) => !allowedNonAnimatableProps.has(prop));\n for (const [prop, value] of entriesToCheck) {\n if (!driver.validateAnimatableStyleProperty(prop)) {\n if (nonAnimatablePropsInitialValues.has(prop) && !invalidNonAnimatableProps.has(prop)) {\n const propInitialValue = nonAnimatablePropsInitialValues.get(prop);\n if (propInitialValue !== value) {\n invalidNonAnimatableProps.add(prop);\n }\n }\n else {\n nonAnimatablePropsInitialValues.set(prop, value);\n }\n }\n }\n });\n });\n if (invalidNonAnimatableProps.size > 0) {\n console.warn(`Warning: The animation trigger \"${triggerName}\" is attempting to animate the following` +\n ' not animatable properties: ' + Array.from(invalidNonAnimatableProps).join(', ') + '\\n' +\n '(to check the list of all animatable properties visit https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_animated_properties)');\n }\n}\nfunction oneOrMoreTransitionsMatch(matchFns, currentState, nextState, element, params) {\n return matchFns.some(fn => fn(currentState, nextState, element, params));\n}\nfunction applyParamDefaults(userParams, defaults) {\n const result = copyObj(defaults);\n for (const key in userParams) {\n if (userParams.hasOwnProperty(key) && userParams[key] != null) {\n result[key] = userParams[key];\n }\n }\n return result;\n}\nclass AnimationStateStyles {\n constructor(styles, defaultParams, normalizer) {\n this.styles = styles;\n this.defaultParams = defaultParams;\n this.normalizer = normalizer;\n }\n buildStyles(params, errors) {\n const finalStyles = new Map();\n const combinedParams = copyObj(this.defaultParams);\n Object.keys(params).forEach(key => {\n const value = params[key];\n if (value !== null) {\n combinedParams[key] = value;\n }\n });\n this.styles.styles.forEach(value => {\n if (typeof value !== 'string') {\n value.forEach((val, prop) => {\n if (val) {\n val = interpolateParams(val, combinedParams, errors);\n }\n const normalizedProp = this.normalizer.normalizePropertyName(prop, errors);\n val = this.normalizer.normalizeStyleValue(prop, normalizedProp, val, errors);\n finalStyles.set(prop, val);\n });\n }\n });\n return finalStyles;\n }\n}\n\nfunction buildTrigger(name, ast, normalizer) {\n return new AnimationTrigger(name, ast, normalizer);\n}\nclass AnimationTrigger {\n constructor(name, ast, _normalizer) {\n this.name = name;\n this.ast = ast;\n this._normalizer = _normalizer;\n this.transitionFactories = [];\n this.states = new Map();\n ast.states.forEach(ast => {\n const defaultParams = (ast.options && ast.options.params) || {};\n this.states.set(ast.name, new AnimationStateStyles(ast.style, defaultParams, _normalizer));\n });\n balanceProperties(this.states, 'true', '1');\n balanceProperties(this.states, 'false', '0');\n ast.transitions.forEach(ast => {\n this.transitionFactories.push(new AnimationTransitionFactory(name, ast, this.states));\n });\n this.fallbackTransition = createFallbackTransition(name, this.states, this._normalizer);\n }\n get containsQueries() {\n return this.ast.queryCount > 0;\n }\n matchTransition(currentState, nextState, element, params) {\n const entry = this.transitionFactories.find(f => f.match(currentState, nextState, element, params));\n return entry || null;\n }\n matchStyles(currentState, params, errors) {\n return this.fallbackTransition.buildStyles(currentState, params, errors);\n }\n}\nfunction createFallbackTransition(triggerName, states, normalizer) {\n const matchers = [(fromState, toState) => true];\n const animation = { type: 2 /* AnimationMetadataType.Sequence */, steps: [], options: null };\n const transition = {\n type: 1 /* AnimationMetadataType.Transition */,\n animation,\n matchers,\n options: null,\n queryCount: 0,\n depCount: 0\n };\n return new AnimationTransitionFactory(triggerName, transition, states);\n}\nfunction balanceProperties(stateMap, key1, key2) {\n if (stateMap.has(key1)) {\n if (!stateMap.has(key2)) {\n stateMap.set(key2, stateMap.get(key1));\n }\n }\n else if (stateMap.has(key2)) {\n stateMap.set(key1, stateMap.get(key2));\n }\n}\n\nconst EMPTY_INSTRUCTION_MAP = new ElementInstructionMap();\nclass TimelineAnimationEngine {\n constructor(bodyNode, _driver, _normalizer) {\n this.bodyNode = bodyNode;\n this._driver = _driver;\n this._normalizer = _normalizer;\n this._animations = new Map();\n this._playersById = new Map();\n this.players = [];\n }\n register(id, metadata) {\n const errors = [];\n const warnings = [];\n const ast = buildAnimationAst(this._driver, metadata, errors, warnings);\n if (errors.length) {\n throw registerFailed(errors);\n }\n else {\n if (warnings.length) {\n warnRegister(warnings);\n }\n this._animations.set(id, ast);\n }\n }\n _buildPlayer(i, preStyles, postStyles) {\n const element = i.element;\n const keyframes = normalizeKeyframes$1(this._driver, this._normalizer, element, i.keyframes, preStyles, postStyles);\n return this._driver.animate(element, keyframes, i.duration, i.delay, i.easing, [], true);\n }\n create(id, element, options = {}) {\n const errors = [];\n const ast = this._animations.get(id);\n let instructions;\n const autoStylesMap = new Map();\n if (ast) {\n instructions = buildAnimationTimelines(this._driver, element, ast, ENTER_CLASSNAME, LEAVE_CLASSNAME, new Map(), new Map(), options, EMPTY_INSTRUCTION_MAP, errors);\n instructions.forEach(inst => {\n const styles = getOrSetDefaultValue(autoStylesMap, inst.element, new Map());\n inst.postStyleProps.forEach(prop => styles.set(prop, null));\n });\n }\n else {\n errors.push(missingOrDestroyedAnimation());\n instructions = [];\n }\n if (errors.length) {\n throw createAnimationFailed(errors);\n }\n autoStylesMap.forEach((styles, element) => {\n styles.forEach((_, prop) => {\n styles.set(prop, this._driver.computeStyle(element, prop, AUTO_STYLE));\n });\n });\n const players = instructions.map(i => {\n const styles = autoStylesMap.get(i.element);\n return this._buildPlayer(i, new Map(), styles);\n });\n const player = optimizeGroupPlayer(players);\n this._playersById.set(id, player);\n player.onDestroy(() => this.destroy(id));\n this.players.push(player);\n return player;\n }\n destroy(id) {\n const player = this._getPlayer(id);\n player.destroy();\n this._playersById.delete(id);\n const index = this.players.indexOf(player);\n if (index >= 0) {\n this.players.splice(index, 1);\n }\n }\n _getPlayer(id) {\n const player = this._playersById.get(id);\n if (!player) {\n throw missingPlayer(id);\n }\n return player;\n }\n listen(id, element, eventName, callback) {\n // triggerName, fromState, toState are all ignored for timeline animations\n const baseEvent = makeAnimationEvent(element, '', '', '');\n listenOnPlayer(this._getPlayer(id), eventName, baseEvent, callback);\n return () => { };\n }\n command(id, element, command, args) {\n if (command == 'register') {\n this.register(id, args[0]);\n return;\n }\n if (command == 'create') {\n const options = (args[0] || {});\n this.create(id, element, options);\n return;\n }\n const player = this._getPlayer(id);\n switch (command) {\n case 'play':\n player.play();\n break;\n case 'pause':\n player.pause();\n break;\n case 'reset':\n player.reset();\n break;\n case 'restart':\n player.restart();\n break;\n case 'finish':\n player.finish();\n break;\n case 'init':\n player.init();\n break;\n case 'setPosition':\n player.setPosition(parseFloat(args[0]));\n break;\n case 'destroy':\n this.destroy(id);\n break;\n }\n }\n}\n\nconst QUEUED_CLASSNAME = 'ng-animate-queued';\nconst QUEUED_SELECTOR = '.ng-animate-queued';\nconst DISABLED_CLASSNAME = 'ng-animate-disabled';\nconst DISABLED_SELECTOR = '.ng-animate-disabled';\nconst STAR_CLASSNAME = 'ng-star-inserted';\nconst STAR_SELECTOR = '.ng-star-inserted';\nconst EMPTY_PLAYER_ARRAY = [];\nconst NULL_REMOVAL_STATE = {\n namespaceId: '',\n setForRemoval: false,\n setForMove: false,\n hasAnimation: false,\n removedBeforeQueried: false\n};\nconst NULL_REMOVED_QUERIED_STATE = {\n namespaceId: '',\n setForMove: false,\n setForRemoval: false,\n hasAnimation: false,\n removedBeforeQueried: true\n};\nconst REMOVAL_FLAG = '__ng_removed';\nclass StateValue {\n get params() {\n return this.options.params;\n }\n constructor(input, namespaceId = '') {\n this.namespaceId = namespaceId;\n const isObj = input && input.hasOwnProperty('value');\n const value = isObj ? input['value'] : input;\n this.value = normalizeTriggerValue(value);\n if (isObj) {\n const options = copyObj(input);\n delete options['value'];\n this.options = options;\n }\n else {\n this.options = {};\n }\n if (!this.options.params) {\n this.options.params = {};\n }\n }\n absorbOptions(options) {\n const newParams = options.params;\n if (newParams) {\n const oldParams = this.options.params;\n Object.keys(newParams).forEach(prop => {\n if (oldParams[prop] == null) {\n oldParams[prop] = newParams[prop];\n }\n });\n }\n }\n}\nconst VOID_VALUE = 'void';\nconst DEFAULT_STATE_VALUE = new StateValue(VOID_VALUE);\nclass AnimationTransitionNamespace {\n constructor(id, hostElement, _engine) {\n this.id = id;\n this.hostElement = hostElement;\n this._engine = _engine;\n this.players = [];\n this._triggers = new Map();\n this._queue = [];\n this._elementListeners = new Map();\n this._hostClassName = 'ng-tns-' + id;\n addClass(hostElement, this._hostClassName);\n }\n listen(element, name, phase, callback) {\n if (!this._triggers.has(name)) {\n throw missingTrigger(phase, name);\n }\n if (phase == null || phase.length == 0) {\n throw missingEvent(name);\n }\n if (!isTriggerEventValid(phase)) {\n throw unsupportedTriggerEvent(phase, name);\n }\n const listeners = getOrSetDefaultValue(this._elementListeners, element, []);\n const data = { name, phase, callback };\n listeners.push(data);\n const triggersWithStates = getOrSetDefaultValue(this._engine.statesByElement, element, new Map());\n if (!triggersWithStates.has(name)) {\n addClass(element, NG_TRIGGER_CLASSNAME);\n addClass(element, NG_TRIGGER_CLASSNAME + '-' + name);\n triggersWithStates.set(name, DEFAULT_STATE_VALUE);\n }\n return () => {\n // the event listener is removed AFTER the flush has occurred such\n // that leave animations callbacks can fire (otherwise if the node\n // is removed in between then the listeners would be deregistered)\n this._engine.afterFlush(() => {\n const index = listeners.indexOf(data);\n if (index >= 0) {\n listeners.splice(index, 1);\n }\n if (!this._triggers.has(name)) {\n triggersWithStates.delete(name);\n }\n });\n };\n }\n register(name, ast) {\n if (this._triggers.has(name)) {\n // throw\n return false;\n }\n else {\n this._triggers.set(name, ast);\n return true;\n }\n }\n _getTrigger(name) {\n const trigger = this._triggers.get(name);\n if (!trigger) {\n throw unregisteredTrigger(name);\n }\n return trigger;\n }\n trigger(element, triggerName, value, defaultToFallback = true) {\n const trigger = this._getTrigger(triggerName);\n const player = new TransitionAnimationPlayer(this.id, triggerName, element);\n let triggersWithStates = this._engine.statesByElement.get(element);\n if (!triggersWithStates) {\n addClass(element, NG_TRIGGER_CLASSNAME);\n addClass(element, NG_TRIGGER_CLASSNAME + '-' + triggerName);\n this._engine.statesByElement.set(element, triggersWithStates = new Map());\n }\n let fromState = triggersWithStates.get(triggerName);\n const toState = new StateValue(value, this.id);\n const isObj = value && value.hasOwnProperty('value');\n if (!isObj && fromState) {\n toState.absorbOptions(fromState.options);\n }\n triggersWithStates.set(triggerName, toState);\n if (!fromState) {\n fromState = DEFAULT_STATE_VALUE;\n }\n const isRemoval = toState.value === VOID_VALUE;\n // normally this isn't reached by here, however, if an object expression\n // is passed in then it may be a new object each time. Comparing the value\n // is important since that will stay the same despite there being a new object.\n // The removal arc here is special cased because the same element is triggered\n // twice in the event that it contains animations on the outer/inner portions\n // of the host container\n if (!isRemoval && fromState.value === toState.value) {\n // this means that despite the value not changing, some inner params\n // have changed which means that the animation final styles need to be applied\n if (!objEquals(fromState.params, toState.params)) {\n const errors = [];\n const fromStyles = trigger.matchStyles(fromState.value, fromState.params, errors);\n const toStyles = trigger.matchStyles(toState.value, toState.params, errors);\n if (errors.length) {\n this._engine.reportError(errors);\n }\n else {\n this._engine.afterFlush(() => {\n eraseStyles(element, fromStyles);\n setStyles(element, toStyles);\n });\n }\n }\n return;\n }\n const playersOnElement = getOrSetDefaultValue(this._engine.playersByElement, element, []);\n playersOnElement.forEach(player => {\n // only remove the player if it is queued on the EXACT same trigger/namespace\n // we only also deal with queued players here because if the animation has\n // started then we want to keep the player alive until the flush happens\n // (which is where the previousPlayers are passed into the new player)\n if (player.namespaceId == this.id && player.triggerName == triggerName && player.queued) {\n player.destroy();\n }\n });\n let transition = trigger.matchTransition(fromState.value, toState.value, element, toState.params);\n let isFallbackTransition = false;\n if (!transition) {\n if (!defaultToFallback)\n return;\n transition = trigger.fallbackTransition;\n isFallbackTransition = true;\n }\n this._engine.totalQueuedPlayers++;\n this._queue.push({ element, triggerName, transition, fromState, toState, player, isFallbackTransition });\n if (!isFallbackTransition) {\n addClass(element, QUEUED_CLASSNAME);\n player.onStart(() => {\n removeClass(element, QUEUED_CLASSNAME);\n });\n }\n player.onDone(() => {\n let index = this.players.indexOf(player);\n if (index >= 0) {\n this.players.splice(index, 1);\n }\n const players = this._engine.playersByElement.get(element);\n if (players) {\n let index = players.indexOf(player);\n if (index >= 0) {\n players.splice(index, 1);\n }\n }\n });\n this.players.push(player);\n playersOnElement.push(player);\n return player;\n }\n deregister(name) {\n this._triggers.delete(name);\n this._engine.statesByElement.forEach(stateMap => stateMap.delete(name));\n this._elementListeners.forEach((listeners, element) => {\n this._elementListeners.set(element, listeners.filter(entry => {\n return entry.name != name;\n }));\n });\n }\n clearElementCache(element) {\n this._engine.statesByElement.delete(element);\n this._elementListeners.delete(element);\n const elementPlayers = this._engine.playersByElement.get(element);\n if (elementPlayers) {\n elementPlayers.forEach(player => player.destroy());\n this._engine.playersByElement.delete(element);\n }\n }\n _signalRemovalForInnerTriggers(rootElement, context) {\n const elements = this._engine.driver.query(rootElement, NG_TRIGGER_SELECTOR, true);\n // emulate a leave animation for all inner nodes within this node.\n // If there are no animations found for any of the nodes then clear the cache\n // for the element.\n elements.forEach(elm => {\n // this means that an inner remove() operation has already kicked off\n // the animation on this element...\n if (elm[REMOVAL_FLAG])\n return;\n const namespaces = this._engine.fetchNamespacesByElement(elm);\n if (namespaces.size) {\n namespaces.forEach(ns => ns.triggerLeaveAnimation(elm, context, false, true));\n }\n else {\n this.clearElementCache(elm);\n }\n });\n // If the child elements were removed along with the parent, their animations might not\n // have completed. Clear all the elements from the cache so we don't end up with a memory leak.\n this._engine.afterFlushAnimationsDone(() => elements.forEach(elm => this.clearElementCache(elm)));\n }\n triggerLeaveAnimation(element, context, destroyAfterComplete, defaultToFallback) {\n const triggerStates = this._engine.statesByElement.get(element);\n const previousTriggersValues = new Map();\n if (triggerStates) {\n const players = [];\n triggerStates.forEach((state, triggerName) => {\n previousTriggersValues.set(triggerName, state.value);\n // this check is here in the event that an element is removed\n // twice (both on the host level and the component level)\n if (this._triggers.has(triggerName)) {\n const player = this.trigger(element, triggerName, VOID_VALUE, defaultToFallback);\n if (player) {\n players.push(player);\n }\n }\n });\n if (players.length) {\n this._engine.markElementAsRemoved(this.id, element, true, context, previousTriggersValues);\n if (destroyAfterComplete) {\n optimizeGroupPlayer(players).onDone(() => this._engine.processLeaveNode(element));\n }\n return true;\n }\n }\n return false;\n }\n prepareLeaveAnimationListeners(element) {\n const listeners = this._elementListeners.get(element);\n const elementStates = this._engine.statesByElement.get(element);\n // if this statement fails then it means that the element was picked up\n // by an earlier flush (or there are no listeners at all to track the leave).\n if (listeners && elementStates) {\n const visitedTriggers = new Set();\n listeners.forEach(listener => {\n const triggerName = listener.name;\n if (visitedTriggers.has(triggerName))\n return;\n visitedTriggers.add(triggerName);\n const trigger = this._triggers.get(triggerName);\n const transition = trigger.fallbackTransition;\n const fromState = elementStates.get(triggerName) || DEFAULT_STATE_VALUE;\n const toState = new StateValue(VOID_VALUE);\n const player = new TransitionAnimationPlayer(this.id, triggerName, element);\n this._engine.totalQueuedPlayers++;\n this._queue.push({\n element,\n triggerName,\n transition,\n fromState,\n toState,\n player,\n isFallbackTransition: true\n });\n });\n }\n }\n removeNode(element, context) {\n const engine = this._engine;\n if (element.childElementCount) {\n this._signalRemovalForInnerTriggers(element, context);\n }\n // this means that a * => VOID animation was detected and kicked off\n if (this.triggerLeaveAnimation(element, context, true))\n return;\n // find the player that is animating and make sure that the\n // removal is delayed until that player has completed\n let containsPotentialParentTransition = false;\n if (engine.totalAnimations) {\n const currentPlayers = engine.players.length ? engine.playersByQueriedElement.get(element) : [];\n // when this `if statement` does not continue forward it means that\n // a previous animation query has selected the current element and\n // is animating it. In this situation want to continue forwards and\n // allow the element to be queued up for animation later.\n if (currentPlayers && currentPlayers.length) {\n containsPotentialParentTransition = true;\n }\n else {\n let parent = element;\n while (parent = parent.parentNode) {\n const triggers = engine.statesByElement.get(parent);\n if (triggers) {\n containsPotentialParentTransition = true;\n break;\n }\n }\n }\n }\n // at this stage we know that the element will either get removed\n // during flush or will be picked up by a parent query. Either way\n // we need to fire the listeners for this element when it DOES get\n // removed (once the query parent animation is done or after flush)\n this.prepareLeaveAnimationListeners(element);\n // whether or not a parent has an animation we need to delay the deferral of the leave\n // operation until we have more information (which we do after flush() has been called)\n if (containsPotentialParentTransition) {\n engine.markElementAsRemoved(this.id, element, false, context);\n }\n else {\n const removalFlag = element[REMOVAL_FLAG];\n if (!removalFlag || removalFlag === NULL_REMOVAL_STATE) {\n // we do this after the flush has occurred such\n // that the callbacks can be fired\n engine.afterFlush(() => this.clearElementCache(element));\n engine.destroyInnerAnimations(element);\n engine._onRemovalComplete(element, context);\n }\n }\n }\n insertNode(element, parent) {\n addClass(element, this._hostClassName);\n }\n drainQueuedTransitions(microtaskId) {\n const instructions = [];\n this._queue.forEach(entry => {\n const player = entry.player;\n if (player.destroyed)\n return;\n const element = entry.element;\n const listeners = this._elementListeners.get(element);\n if (listeners) {\n listeners.forEach((listener) => {\n if (listener.name == entry.triggerName) {\n const baseEvent = makeAnimationEvent(element, entry.triggerName, entry.fromState.value, entry.toState.value);\n baseEvent['_data'] = microtaskId;\n listenOnPlayer(entry.player, listener.phase, baseEvent, listener.callback);\n }\n });\n }\n if (player.markedForDestroy) {\n this._engine.afterFlush(() => {\n // now we can destroy the element properly since the event listeners have\n // been bound to the player\n player.destroy();\n });\n }\n else {\n instructions.push(entry);\n }\n });\n this._queue = [];\n return instructions.sort((a, b) => {\n // if depCount == 0 them move to front\n // otherwise if a contains b then move back\n const d0 = a.transition.ast.depCount;\n const d1 = b.transition.ast.depCount;\n if (d0 == 0 || d1 == 0) {\n return d0 - d1;\n }\n return this._engine.driver.containsElement(a.element, b.element) ? 1 : -1;\n });\n }\n destroy(context) {\n this.players.forEach(p => p.destroy());\n this._signalRemovalForInnerTriggers(this.hostElement, context);\n }\n elementContainsData(element) {\n let containsData = false;\n if (this._elementListeners.has(element))\n containsData = true;\n containsData =\n (this._queue.find(entry => entry.element === element) ? true : false) || containsData;\n return containsData;\n }\n}\nclass TransitionAnimationEngine {\n /** @internal */\n _onRemovalComplete(element, context) {\n this.onRemovalComplete(element, context);\n }\n constructor(bodyNode, driver, _normalizer) {\n this.bodyNode = bodyNode;\n this.driver = driver;\n this._normalizer = _normalizer;\n this.players = [];\n this.newHostElements = new Map();\n this.playersByElement = new Map();\n this.playersByQueriedElement = new Map();\n this.statesByElement = new Map();\n this.disabledNodes = new Set();\n this.totalAnimations = 0;\n this.totalQueuedPlayers = 0;\n this._namespaceLookup = {};\n this._namespaceList = [];\n this._flushFns = [];\n this._whenQuietFns = [];\n this.namespacesByHostElement = new Map();\n this.collectedEnterElements = [];\n this.collectedLeaveElements = [];\n // this method is designed to be overridden by the code that uses this engine\n this.onRemovalComplete = (element, context) => { };\n }\n get queuedPlayers() {\n const players = [];\n this._namespaceList.forEach(ns => {\n ns.players.forEach(player => {\n if (player.queued) {\n players.push(player);\n }\n });\n });\n return players;\n }\n createNamespace(namespaceId, hostElement) {\n const ns = new AnimationTransitionNamespace(namespaceId, hostElement, this);\n if (this.bodyNode && this.driver.containsElement(this.bodyNode, hostElement)) {\n this._balanceNamespaceList(ns, hostElement);\n }\n else {\n // defer this later until flush during when the host element has\n // been inserted so that we know exactly where to place it in\n // the namespace list\n this.newHostElements.set(hostElement, ns);\n // given that this host element is a part of the animation code, it\n // may or may not be inserted by a parent node that is of an\n // animation renderer type. If this happens then we can still have\n // access to this item when we query for :enter nodes. If the parent\n // is a renderer then the set data-structure will normalize the entry\n this.collectEnterElement(hostElement);\n }\n return this._namespaceLookup[namespaceId] = ns;\n }\n _balanceNamespaceList(ns, hostElement) {\n const namespaceList = this._namespaceList;\n const namespacesByHostElement = this.namespacesByHostElement;\n const limit = namespaceList.length - 1;\n if (limit >= 0) {\n let found = false;\n // Find the closest ancestor with an existing namespace so we can then insert `ns` after it,\n // establishing a top-down ordering of namespaces in `this._namespaceList`.\n let ancestor = this.driver.getParentElement(hostElement);\n while (ancestor) {\n const ancestorNs = namespacesByHostElement.get(ancestor);\n if (ancestorNs) {\n // An animation namespace has been registered for this ancestor, so we insert `ns`\n // right after it to establish top-down ordering of animation namespaces.\n const index = namespaceList.indexOf(ancestorNs);\n namespaceList.splice(index + 1, 0, ns);\n found = true;\n break;\n }\n ancestor = this.driver.getParentElement(ancestor);\n }\n if (!found) {\n // No namespace exists that is an ancestor of `ns`, so `ns` is inserted at the front to\n // ensure that any existing descendants are ordered after `ns`, retaining the desired\n // top-down ordering.\n namespaceList.unshift(ns);\n }\n }\n else {\n namespaceList.push(ns);\n }\n namespacesByHostElement.set(hostElement, ns);\n return ns;\n }\n register(namespaceId, hostElement) {\n let ns = this._namespaceLookup[namespaceId];\n if (!ns) {\n ns = this.createNamespace(namespaceId, hostElement);\n }\n return ns;\n }\n registerTrigger(namespaceId, name, trigger) {\n let ns = this._namespaceLookup[namespaceId];\n if (ns && ns.register(name, trigger)) {\n this.totalAnimations++;\n }\n }\n destroy(namespaceId, context) {\n if (!namespaceId)\n return;\n const ns = this._fetchNamespace(namespaceId);\n this.afterFlush(() => {\n this.namespacesByHostElement.delete(ns.hostElement);\n delete this._namespaceLookup[namespaceId];\n const index = this._namespaceList.indexOf(ns);\n if (index >= 0) {\n this._namespaceList.splice(index, 1);\n }\n });\n this.afterFlushAnimationsDone(() => ns.destroy(context));\n }\n _fetchNamespace(id) {\n return this._namespaceLookup[id];\n }\n fetchNamespacesByElement(element) {\n // normally there should only be one namespace per element, however\n // if @triggers are placed on both the component element and then\n // its host element (within the component code) then there will be\n // two namespaces returned. We use a set here to simply deduplicate\n // the namespaces in case (for the reason described above) there are multiple triggers\n const namespaces = new Set();\n const elementStates = this.statesByElement.get(element);\n if (elementStates) {\n for (let stateValue of elementStates.values()) {\n if (stateValue.namespaceId) {\n const ns = this._fetchNamespace(stateValue.namespaceId);\n if (ns) {\n namespaces.add(ns);\n }\n }\n }\n }\n return namespaces;\n }\n trigger(namespaceId, element, name, value) {\n if (isElementNode(element)) {\n const ns = this._fetchNamespace(namespaceId);\n if (ns) {\n ns.trigger(element, name, value);\n return true;\n }\n }\n return false;\n }\n insertNode(namespaceId, element, parent, insertBefore) {\n if (!isElementNode(element))\n return;\n // special case for when an element is removed and reinserted (move operation)\n // when this occurs we do not want to use the element for deletion later\n const details = element[REMOVAL_FLAG];\n if (details && details.setForRemoval) {\n details.setForRemoval = false;\n details.setForMove = true;\n const index = this.collectedLeaveElements.indexOf(element);\n if (index >= 0) {\n this.collectedLeaveElements.splice(index, 1);\n }\n }\n // in the event that the namespaceId is blank then the caller\n // code does not contain any animation code in it, but it is\n // just being called so that the node is marked as being inserted\n if (namespaceId) {\n const ns = this._fetchNamespace(namespaceId);\n // This if-statement is a workaround for router issue #21947.\n // The router sometimes hits a race condition where while a route\n // is being instantiated a new navigation arrives, triggering leave\n // animation of DOM that has not been fully initialized, until this\n // is resolved, we need to handle the scenario when DOM is not in a\n // consistent state during the animation.\n if (ns) {\n ns.insertNode(element, parent);\n }\n }\n // only *directives and host elements are inserted before\n if (insertBefore) {\n this.collectEnterElement(element);\n }\n }\n collectEnterElement(element) {\n this.collectedEnterElements.push(element);\n }\n markElementAsDisabled(element, value) {\n if (value) {\n if (!this.disabledNodes.has(element)) {\n this.disabledNodes.add(element);\n addClass(element, DISABLED_CLASSNAME);\n }\n }\n else if (this.disabledNodes.has(element)) {\n this.disabledNodes.delete(element);\n removeClass(element, DISABLED_CLASSNAME);\n }\n }\n removeNode(namespaceId, element, isHostElement, context) {\n if (isElementNode(element)) {\n const ns = namespaceId ? this._fetchNamespace(namespaceId) : null;\n if (ns) {\n ns.removeNode(element, context);\n }\n else {\n this.markElementAsRemoved(namespaceId, element, false, context);\n }\n if (isHostElement) {\n const hostNS = this.namespacesByHostElement.get(element);\n if (hostNS && hostNS.id !== namespaceId) {\n hostNS.removeNode(element, context);\n }\n }\n }\n else {\n this._onRemovalComplete(element, context);\n }\n }\n markElementAsRemoved(namespaceId, element, hasAnimation, context, previousTriggersValues) {\n this.collectedLeaveElements.push(element);\n element[REMOVAL_FLAG] = {\n namespaceId,\n setForRemoval: context,\n hasAnimation,\n removedBeforeQueried: false,\n previousTriggersValues\n };\n }\n listen(namespaceId, element, name, phase, callback) {\n if (isElementNode(element)) {\n return this._fetchNamespace(namespaceId).listen(element, name, phase, callback);\n }\n return () => { };\n }\n _buildInstruction(entry, subTimelines, enterClassName, leaveClassName, skipBuildAst) {\n return entry.transition.build(this.driver, entry.element, entry.fromState.value, entry.toState.value, enterClassName, leaveClassName, entry.fromState.options, entry.toState.options, subTimelines, skipBuildAst);\n }\n destroyInnerAnimations(containerElement) {\n let elements = this.driver.query(containerElement, NG_TRIGGER_SELECTOR, true);\n elements.forEach(element => this.destroyActiveAnimationsForElement(element));\n if (this.playersByQueriedElement.size == 0)\n return;\n elements = this.driver.query(containerElement, NG_ANIMATING_SELECTOR, true);\n elements.forEach(element => this.finishActiveQueriedAnimationOnElement(element));\n }\n destroyActiveAnimationsForElement(element) {\n const players = this.playersByElement.get(element);\n if (players) {\n players.forEach(player => {\n // special case for when an element is set for destruction, but hasn't started.\n // in this situation we want to delay the destruction until the flush occurs\n // so that any event listeners attached to the player are triggered.\n if (player.queued) {\n player.markedForDestroy = true;\n }\n else {\n player.destroy();\n }\n });\n }\n }\n finishActiveQueriedAnimationOnElement(element) {\n const players = this.playersByQueriedElement.get(element);\n if (players) {\n players.forEach(player => player.finish());\n }\n }\n whenRenderingDone() {\n return new Promise(resolve => {\n if (this.players.length) {\n return optimizeGroupPlayer(this.players).onDone(() => resolve());\n }\n else {\n resolve();\n }\n });\n }\n processLeaveNode(element) {\n const details = element[REMOVAL_FLAG];\n if (details && details.setForRemoval) {\n // this will prevent it from removing it twice\n element[REMOVAL_FLAG] = NULL_REMOVAL_STATE;\n if (details.namespaceId) {\n this.destroyInnerAnimations(element);\n const ns = this._fetchNamespace(details.namespaceId);\n if (ns) {\n ns.clearElementCache(element);\n }\n }\n this._onRemovalComplete(element, details.setForRemoval);\n }\n if (element.classList?.contains(DISABLED_CLASSNAME)) {\n this.markElementAsDisabled(element, false);\n }\n this.driver.query(element, DISABLED_SELECTOR, true).forEach(node => {\n this.markElementAsDisabled(node, false);\n });\n }\n flush(microtaskId = -1) {\n let players = [];\n if (this.newHostElements.size) {\n this.newHostElements.forEach((ns, element) => this._balanceNamespaceList(ns, element));\n this.newHostElements.clear();\n }\n if (this.totalAnimations && this.collectedEnterElements.length) {\n for (let i = 0; i < this.collectedEnterElements.length; i++) {\n const elm = this.collectedEnterElements[i];\n addClass(elm, STAR_CLASSNAME);\n }\n }\n if (this._namespaceList.length &&\n (this.totalQueuedPlayers || this.collectedLeaveElements.length)) {\n const cleanupFns = [];\n try {\n players = this._flushAnimations(cleanupFns, microtaskId);\n }\n finally {\n for (let i = 0; i < cleanupFns.length; i++) {\n cleanupFns[i]();\n }\n }\n }\n else {\n for (let i = 0; i < this.collectedLeaveElements.length; i++) {\n const element = this.collectedLeaveElements[i];\n this.processLeaveNode(element);\n }\n }\n this.totalQueuedPlayers = 0;\n this.collectedEnterElements.length = 0;\n this.collectedLeaveElements.length = 0;\n this._flushFns.forEach(fn => fn());\n this._flushFns = [];\n if (this._whenQuietFns.length) {\n // we move these over to a variable so that\n // if any new callbacks are registered in another\n // flush they do not populate the existing set\n const quietFns = this._whenQuietFns;\n this._whenQuietFns = [];\n if (players.length) {\n optimizeGroupPlayer(players).onDone(() => {\n quietFns.forEach(fn => fn());\n });\n }\n else {\n quietFns.forEach(fn => fn());\n }\n }\n }\n reportError(errors) {\n throw triggerTransitionsFailed(errors);\n }\n _flushAnimations(cleanupFns, microtaskId) {\n const subTimelines = new ElementInstructionMap();\n const skippedPlayers = [];\n const skippedPlayersMap = new Map();\n const queuedInstructions = [];\n const queriedElements = new Map();\n const allPreStyleElements = new Map();\n const allPostStyleElements = new Map();\n const disabledElementsSet = new Set();\n this.disabledNodes.forEach(node => {\n disabledElementsSet.add(node);\n const nodesThatAreDisabled = this.driver.query(node, QUEUED_SELECTOR, true);\n for (let i = 0; i < nodesThatAreDisabled.length; i++) {\n disabledElementsSet.add(nodesThatAreDisabled[i]);\n }\n });\n const bodyNode = this.bodyNode;\n const allTriggerElements = Array.from(this.statesByElement.keys());\n const enterNodeMap = buildRootMap(allTriggerElements, this.collectedEnterElements);\n // this must occur before the instructions are built below such that\n // the :enter queries match the elements (since the timeline queries\n // are fired during instruction building).\n const enterNodeMapIds = new Map();\n let i = 0;\n enterNodeMap.forEach((nodes, root) => {\n const className = ENTER_CLASSNAME + i++;\n enterNodeMapIds.set(root, className);\n nodes.forEach(node => addClass(node, className));\n });\n const allLeaveNodes = [];\n const mergedLeaveNodes = new Set();\n const leaveNodesWithoutAnimations = new Set();\n for (let i = 0; i < this.collectedLeaveElements.length; i++) {\n const element = this.collectedLeaveElements[i];\n const details = element[REMOVAL_FLAG];\n if (details && details.setForRemoval) {\n allLeaveNodes.push(element);\n mergedLeaveNodes.add(element);\n if (details.hasAnimation) {\n this.driver.query(element, STAR_SELECTOR, true).forEach(elm => mergedLeaveNodes.add(elm));\n }\n else {\n leaveNodesWithoutAnimations.add(element);\n }\n }\n }\n const leaveNodeMapIds = new Map();\n const leaveNodeMap = buildRootMap(allTriggerElements, Array.from(mergedLeaveNodes));\n leaveNodeMap.forEach((nodes, root) => {\n const className = LEAVE_CLASSNAME + i++;\n leaveNodeMapIds.set(root, className);\n nodes.forEach(node => addClass(node, className));\n });\n cleanupFns.push(() => {\n enterNodeMap.forEach((nodes, root) => {\n const className = enterNodeMapIds.get(root);\n nodes.forEach(node => removeClass(node, className));\n });\n leaveNodeMap.forEach((nodes, root) => {\n const className = leaveNodeMapIds.get(root);\n nodes.forEach(node => removeClass(node, className));\n });\n allLeaveNodes.forEach(element => {\n this.processLeaveNode(element);\n });\n });\n const allPlayers = [];\n const erroneousTransitions = [];\n for (let i = this._namespaceList.length - 1; i >= 0; i--) {\n const ns = this._namespaceList[i];\n ns.drainQueuedTransitions(microtaskId).forEach(entry => {\n const player = entry.player;\n const element = entry.element;\n allPlayers.push(player);\n if (this.collectedEnterElements.length) {\n const details = element[REMOVAL_FLAG];\n // animations for move operations (elements being removed and reinserted,\n // e.g. when the order of an *ngFor list changes) are currently not supported\n if (details && details.setForMove) {\n if (details.previousTriggersValues &&\n details.previousTriggersValues.has(entry.triggerName)) {\n const previousValue = details.previousTriggersValues.get(entry.triggerName);\n // we need to restore the previous trigger value since the element has\n // only been moved and hasn't actually left the DOM\n const triggersWithStates = this.statesByElement.get(entry.element);\n if (triggersWithStates && triggersWithStates.has(entry.triggerName)) {\n const state = triggersWithStates.get(entry.triggerName);\n state.value = previousValue;\n triggersWithStates.set(entry.triggerName, state);\n }\n }\n player.destroy();\n return;\n }\n }\n const nodeIsOrphaned = !bodyNode || !this.driver.containsElement(bodyNode, element);\n const leaveClassName = leaveNodeMapIds.get(element);\n const enterClassName = enterNodeMapIds.get(element);\n const instruction = this._buildInstruction(entry, subTimelines, enterClassName, leaveClassName, nodeIsOrphaned);\n if (instruction.errors && instruction.errors.length) {\n erroneousTransitions.push(instruction);\n return;\n }\n // even though the element may not be in the DOM, it may still\n // be added at a later point (due to the mechanics of content\n // projection and/or dynamic component insertion) therefore it's\n // important to still style the element.\n if (nodeIsOrphaned) {\n player.onStart(() => eraseStyles(element, instruction.fromStyles));\n player.onDestroy(() => setStyles(element, instruction.toStyles));\n skippedPlayers.push(player);\n return;\n }\n // if an unmatched transition is queued and ready to go\n // then it SHOULD NOT render an animation and cancel the\n // previously running animations.\n if (entry.isFallbackTransition) {\n player.onStart(() => eraseStyles(element, instruction.fromStyles));\n player.onDestroy(() => setStyles(element, instruction.toStyles));\n skippedPlayers.push(player);\n return;\n }\n // this means that if a parent animation uses this animation as a sub-trigger\n // then it will instruct the timeline builder not to add a player delay, but\n // instead stretch the first keyframe gap until the animation starts. This is\n // important in order to prevent extra initialization styles from being\n // required by the user for the animation.\n const timelines = [];\n instruction.timelines.forEach(tl => {\n tl.stretchStartingKeyframe = true;\n if (!this.disabledNodes.has(tl.element)) {\n timelines.push(tl);\n }\n });\n instruction.timelines = timelines;\n subTimelines.append(element, instruction.timelines);\n const tuple = { instruction, player, element };\n queuedInstructions.push(tuple);\n instruction.queriedElements.forEach(element => getOrSetDefaultValue(queriedElements, element, []).push(player));\n instruction.preStyleProps.forEach((stringMap, element) => {\n if (stringMap.size) {\n let setVal = allPreStyleElements.get(element);\n if (!setVal) {\n allPreStyleElements.set(element, setVal = new Set());\n }\n stringMap.forEach((_, prop) => setVal.add(prop));\n }\n });\n instruction.postStyleProps.forEach((stringMap, element) => {\n let setVal = allPostStyleElements.get(element);\n if (!setVal) {\n allPostStyleElements.set(element, setVal = new Set());\n }\n stringMap.forEach((_, prop) => setVal.add(prop));\n });\n });\n }\n if (erroneousTransitions.length) {\n const errors = [];\n erroneousTransitions.forEach(instruction => {\n errors.push(transitionFailed(instruction.triggerName, instruction.errors));\n });\n allPlayers.forEach(player => player.destroy());\n this.reportError(errors);\n }\n const allPreviousPlayersMap = new Map();\n // this map tells us which element in the DOM tree is contained by\n // which animation. Further down this map will get populated once\n // the players are built and in doing so we can use it to efficiently\n // figure out if a sub player is skipped due to a parent player having priority.\n const animationElementMap = new Map();\n queuedInstructions.forEach(entry => {\n const element = entry.element;\n if (subTimelines.has(element)) {\n animationElementMap.set(element, element);\n this._beforeAnimationBuild(entry.player.namespaceId, entry.instruction, allPreviousPlayersMap);\n }\n });\n skippedPlayers.forEach(player => {\n const element = player.element;\n const previousPlayers = this._getPreviousPlayers(element, false, player.namespaceId, player.triggerName, null);\n previousPlayers.forEach(prevPlayer => {\n getOrSetDefaultValue(allPreviousPlayersMap, element, []).push(prevPlayer);\n prevPlayer.destroy();\n });\n });\n // this is a special case for nodes that will be removed either by\n // having their own leave animations or by being queried in a container\n // that will be removed once a parent animation is complete. The idea\n // here is that * styles must be identical to ! styles because of\n // backwards compatibility (* is also filled in by default in many places).\n // Otherwise * styles will return an empty value or \"auto\" since the element\n // passed to getComputedStyle will not be visible (since * === destination)\n const replaceNodes = allLeaveNodes.filter(node => {\n return replacePostStylesAsPre(node, allPreStyleElements, allPostStyleElements);\n });\n // POST STAGE: fill the * styles\n const postStylesMap = new Map();\n const allLeaveQueriedNodes = cloakAndComputeStyles(postStylesMap, this.driver, leaveNodesWithoutAnimations, allPostStyleElements, AUTO_STYLE);\n allLeaveQueriedNodes.forEach(node => {\n if (replacePostStylesAsPre(node, allPreStyleElements, allPostStyleElements)) {\n replaceNodes.push(node);\n }\n });\n // PRE STAGE: fill the ! styles\n const preStylesMap = new Map();\n enterNodeMap.forEach((nodes, root) => {\n cloakAndComputeStyles(preStylesMap, this.driver, new Set(nodes), allPreStyleElements, ɵPRE_STYLE);\n });\n replaceNodes.forEach(node => {\n const post = postStylesMap.get(node);\n const pre = preStylesMap.get(node);\n postStylesMap.set(node, new Map([...Array.from(post?.entries() ?? []), ...Array.from(pre?.entries() ?? [])]));\n });\n const rootPlayers = [];\n const subPlayers = [];\n const NO_PARENT_ANIMATION_ELEMENT_DETECTED = {};\n queuedInstructions.forEach(entry => {\n const { element, player, instruction } = entry;\n // this means that it was never consumed by a parent animation which\n // means that it is independent and therefore should be set for animation\n if (subTimelines.has(element)) {\n if (disabledElementsSet.has(element)) {\n player.onDestroy(() => setStyles(element, instruction.toStyles));\n player.disabled = true;\n player.overrideTotalTime(instruction.totalTime);\n skippedPlayers.push(player);\n return;\n }\n // this will flow up the DOM and query the map to figure out\n // if a parent animation has priority over it. In the situation\n // that a parent is detected then it will cancel the loop. If\n // nothing is detected, or it takes a few hops to find a parent,\n // then it will fill in the missing nodes and signal them as having\n // a detected parent (or a NO_PARENT value via a special constant).\n let parentWithAnimation = NO_PARENT_ANIMATION_ELEMENT_DETECTED;\n if (animationElementMap.size > 1) {\n let elm = element;\n const parentsToAdd = [];\n while (elm = elm.parentNode) {\n const detectedParent = animationElementMap.get(elm);\n if (detectedParent) {\n parentWithAnimation = detectedParent;\n break;\n }\n parentsToAdd.push(elm);\n }\n parentsToAdd.forEach(parent => animationElementMap.set(parent, parentWithAnimation));\n }\n const innerPlayer = this._buildAnimation(player.namespaceId, instruction, allPreviousPlayersMap, skippedPlayersMap, preStylesMap, postStylesMap);\n player.setRealPlayer(innerPlayer);\n if (parentWithAnimation === NO_PARENT_ANIMATION_ELEMENT_DETECTED) {\n rootPlayers.push(player);\n }\n else {\n const parentPlayers = this.playersByElement.get(parentWithAnimation);\n if (parentPlayers && parentPlayers.length) {\n player.parentPlayer = optimizeGroupPlayer(parentPlayers);\n }\n skippedPlayers.push(player);\n }\n }\n else {\n eraseStyles(element, instruction.fromStyles);\n player.onDestroy(() => setStyles(element, instruction.toStyles));\n // there still might be a ancestor player animating this\n // element therefore we will still add it as a sub player\n // even if its animation may be disabled\n subPlayers.push(player);\n if (disabledElementsSet.has(element)) {\n skippedPlayers.push(player);\n }\n }\n });\n // find all of the sub players' corresponding inner animation players\n subPlayers.forEach(player => {\n // even if no players are found for a sub animation it\n // will still complete itself after the next tick since it's Noop\n const playersForElement = skippedPlayersMap.get(player.element);\n if (playersForElement && playersForElement.length) {\n const innerPlayer = optimizeGroupPlayer(playersForElement);\n player.setRealPlayer(innerPlayer);\n }\n });\n // the reason why we don't actually play the animation is\n // because all that a skipped player is designed to do is to\n // fire the start/done transition callback events\n skippedPlayers.forEach(player => {\n if (player.parentPlayer) {\n player.syncPlayerEvents(player.parentPlayer);\n }\n else {\n player.destroy();\n }\n });\n // run through all of the queued removals and see if they\n // were picked up by a query. If not then perform the removal\n // operation right away unless a parent animation is ongoing.\n for (let i = 0; i < allLeaveNodes.length; i++) {\n const element = allLeaveNodes[i];\n const details = element[REMOVAL_FLAG];\n removeClass(element, LEAVE_CLASSNAME);\n // this means the element has a removal animation that is being\n // taken care of and therefore the inner elements will hang around\n // until that animation is over (or the parent queried animation)\n if (details && details.hasAnimation)\n continue;\n let players = [];\n // if this element is queried or if it contains queried children\n // then we want for the element not to be removed from the page\n // until the queried animations have finished\n if (queriedElements.size) {\n let queriedPlayerResults = queriedElements.get(element);\n if (queriedPlayerResults && queriedPlayerResults.length) {\n players.push(...queriedPlayerResults);\n }\n let queriedInnerElements = this.driver.query(element, NG_ANIMATING_SELECTOR, true);\n for (let j = 0; j < queriedInnerElements.length; j++) {\n let queriedPlayers = queriedElements.get(queriedInnerElements[j]);\n if (queriedPlayers && queriedPlayers.length) {\n players.push(...queriedPlayers);\n }\n }\n }\n const activePlayers = players.filter(p => !p.destroyed);\n if (activePlayers.length) {\n removeNodesAfterAnimationDone(this, element, activePlayers);\n }\n else {\n this.processLeaveNode(element);\n }\n }\n // this is required so the cleanup method doesn't remove them\n allLeaveNodes.length = 0;\n rootPlayers.forEach(player => {\n this.players.push(player);\n player.onDone(() => {\n player.destroy();\n const index = this.players.indexOf(player);\n this.players.splice(index, 1);\n });\n player.play();\n });\n return rootPlayers;\n }\n elementContainsData(namespaceId, element) {\n let containsData = false;\n const details = element[REMOVAL_FLAG];\n if (details && details.setForRemoval)\n containsData = true;\n if (this.playersByElement.has(element))\n containsData = true;\n if (this.playersByQueriedElement.has(element))\n containsData = true;\n if (this.statesByElement.has(element))\n containsData = true;\n return this._fetchNamespace(namespaceId).elementContainsData(element) || containsData;\n }\n afterFlush(callback) {\n this._flushFns.push(callback);\n }\n afterFlushAnimationsDone(callback) {\n this._whenQuietFns.push(callback);\n }\n _getPreviousPlayers(element, isQueriedElement, namespaceId, triggerName, toStateValue) {\n let players = [];\n if (isQueriedElement) {\n const queriedElementPlayers = this.playersByQueriedElement.get(element);\n if (queriedElementPlayers) {\n players = queriedElementPlayers;\n }\n }\n else {\n const elementPlayers = this.playersByElement.get(element);\n if (elementPlayers) {\n const isRemovalAnimation = !toStateValue || toStateValue == VOID_VALUE;\n elementPlayers.forEach(player => {\n if (player.queued)\n return;\n if (!isRemovalAnimation && player.triggerName != triggerName)\n return;\n players.push(player);\n });\n }\n }\n if (namespaceId || triggerName) {\n players = players.filter(player => {\n if (namespaceId && namespaceId != player.namespaceId)\n return false;\n if (triggerName && triggerName != player.triggerName)\n return false;\n return true;\n });\n }\n return players;\n }\n _beforeAnimationBuild(namespaceId, instruction, allPreviousPlayersMap) {\n const triggerName = instruction.triggerName;\n const rootElement = instruction.element;\n // when a removal animation occurs, ALL previous players are collected\n // and destroyed (even if they are outside of the current namespace)\n const targetNameSpaceId = instruction.isRemovalTransition ? undefined : namespaceId;\n const targetTriggerName = instruction.isRemovalTransition ? undefined : triggerName;\n for (const timelineInstruction of instruction.timelines) {\n const element = timelineInstruction.element;\n const isQueriedElement = element !== rootElement;\n const players = getOrSetDefaultValue(allPreviousPlayersMap, element, []);\n const previousPlayers = this._getPreviousPlayers(element, isQueriedElement, targetNameSpaceId, targetTriggerName, instruction.toState);\n previousPlayers.forEach(player => {\n const realPlayer = player.getRealPlayer();\n if (realPlayer.beforeDestroy) {\n realPlayer.beforeDestroy();\n }\n player.destroy();\n players.push(player);\n });\n }\n // this needs to be done so that the PRE/POST styles can be\n // computed properly without interfering with the previous animation\n eraseStyles(rootElement, instruction.fromStyles);\n }\n _buildAnimation(namespaceId, instruction, allPreviousPlayersMap, skippedPlayersMap, preStylesMap, postStylesMap) {\n const triggerName = instruction.triggerName;\n const rootElement = instruction.element;\n // we first run this so that the previous animation player\n // data can be passed into the successive animation players\n const allQueriedPlayers = [];\n const allConsumedElements = new Set();\n const allSubElements = new Set();\n const allNewPlayers = instruction.timelines.map(timelineInstruction => {\n const element = timelineInstruction.element;\n allConsumedElements.add(element);\n // FIXME (matsko): make sure to-be-removed animations are removed properly\n const details = element[REMOVAL_FLAG];\n if (details && details.removedBeforeQueried)\n return new NoopAnimationPlayer(timelineInstruction.duration, timelineInstruction.delay);\n const isQueriedElement = element !== rootElement;\n const previousPlayers = flattenGroupPlayers((allPreviousPlayersMap.get(element) || EMPTY_PLAYER_ARRAY)\n .map(p => p.getRealPlayer()))\n .filter(p => {\n // the `element` is not apart of the AnimationPlayer definition, but\n // Mock/WebAnimations\n // use the element within their implementation. This will be added in Angular5 to\n // AnimationPlayer\n const pp = p;\n return pp.element ? pp.element === element : false;\n });\n const preStyles = preStylesMap.get(element);\n const postStyles = postStylesMap.get(element);\n const keyframes = normalizeKeyframes$1(this.driver, this._normalizer, element, timelineInstruction.keyframes, preStyles, postStyles);\n const player = this._buildPlayer(timelineInstruction, keyframes, previousPlayers);\n // this means that this particular player belongs to a sub trigger. It is\n // important that we match this player up with the corresponding (@trigger.listener)\n if (timelineInstruction.subTimeline && skippedPlayersMap) {\n allSubElements.add(element);\n }\n if (isQueriedElement) {\n const wrappedPlayer = new TransitionAnimationPlayer(namespaceId, triggerName, element);\n wrappedPlayer.setRealPlayer(player);\n allQueriedPlayers.push(wrappedPlayer);\n }\n return player;\n });\n allQueriedPlayers.forEach(player => {\n getOrSetDefaultValue(this.playersByQueriedElement, player.element, []).push(player);\n player.onDone(() => deleteOrUnsetInMap(this.playersByQueriedElement, player.element, player));\n });\n allConsumedElements.forEach(element => addClass(element, NG_ANIMATING_CLASSNAME));\n const player = optimizeGroupPlayer(allNewPlayers);\n player.onDestroy(() => {\n allConsumedElements.forEach(element => removeClass(element, NG_ANIMATING_CLASSNAME));\n setStyles(rootElement, instruction.toStyles);\n });\n // this basically makes all of the callbacks for sub element animations\n // be dependent on the upper players for when they finish\n allSubElements.forEach(element => {\n getOrSetDefaultValue(skippedPlayersMap, element, []).push(player);\n });\n return player;\n }\n _buildPlayer(instruction, keyframes, previousPlayers) {\n if (keyframes.length > 0) {\n return this.driver.animate(instruction.element, keyframes, instruction.duration, instruction.delay, instruction.easing, previousPlayers);\n }\n // special case for when an empty transition|definition is provided\n // ... there is no point in rendering an empty animation\n return new NoopAnimationPlayer(instruction.duration, instruction.delay);\n }\n}\nclass TransitionAnimationPlayer {\n constructor(namespaceId, triggerName, element) {\n this.namespaceId = namespaceId;\n this.triggerName = triggerName;\n this.element = element;\n this._player = new NoopAnimationPlayer();\n this._containsRealPlayer = false;\n this._queuedCallbacks = new Map();\n this.destroyed = false;\n this.markedForDestroy = false;\n this.disabled = false;\n this.queued = true;\n this.totalTime = 0;\n }\n setRealPlayer(player) {\n if (this._containsRealPlayer)\n return;\n this._player = player;\n this._queuedCallbacks.forEach((callbacks, phase) => {\n callbacks.forEach(callback => listenOnPlayer(player, phase, undefined, callback));\n });\n this._queuedCallbacks.clear();\n this._containsRealPlayer = true;\n this.overrideTotalTime(player.totalTime);\n this.queued = false;\n }\n getRealPlayer() {\n return this._player;\n }\n overrideTotalTime(totalTime) {\n this.totalTime = totalTime;\n }\n syncPlayerEvents(player) {\n const p = this._player;\n if (p.triggerCallback) {\n player.onStart(() => p.triggerCallback('start'));\n }\n player.onDone(() => this.finish());\n player.onDestroy(() => this.destroy());\n }\n _queueEvent(name, callback) {\n getOrSetDefaultValue(this._queuedCallbacks, name, []).push(callback);\n }\n onDone(fn) {\n if (this.queued) {\n this._queueEvent('done', fn);\n }\n this._player.onDone(fn);\n }\n onStart(fn) {\n if (this.queued) {\n this._queueEvent('start', fn);\n }\n this._player.onStart(fn);\n }\n onDestroy(fn) {\n if (this.queued) {\n this._queueEvent('destroy', fn);\n }\n this._player.onDestroy(fn);\n }\n init() {\n this._player.init();\n }\n hasStarted() {\n return this.queued ? false : this._player.hasStarted();\n }\n play() {\n !this.queued && this._player.play();\n }\n pause() {\n !this.queued && this._player.pause();\n }\n restart() {\n !this.queued && this._player.restart();\n }\n finish() {\n this._player.finish();\n }\n destroy() {\n this.destroyed = true;\n this._player.destroy();\n }\n reset() {\n !this.queued && this._player.reset();\n }\n setPosition(p) {\n if (!this.queued) {\n this._player.setPosition(p);\n }\n }\n getPosition() {\n return this.queued ? 0 : this._player.getPosition();\n }\n /** @internal */\n triggerCallback(phaseName) {\n const p = this._player;\n if (p.triggerCallback) {\n p.triggerCallback(phaseName);\n }\n }\n}\nfunction deleteOrUnsetInMap(map, key, value) {\n let currentValues = map.get(key);\n if (currentValues) {\n if (currentValues.length) {\n const index = currentValues.indexOf(value);\n currentValues.splice(index, 1);\n }\n if (currentValues.length == 0) {\n map.delete(key);\n }\n }\n return currentValues;\n}\nfunction normalizeTriggerValue(value) {\n // we use `!= null` here because it's the most simple\n // way to test against a \"falsy\" value without mixing\n // in empty strings or a zero value. DO NOT OPTIMIZE.\n return value != null ? value : null;\n}\nfunction isElementNode(node) {\n return node && node['nodeType'] === 1;\n}\nfunction isTriggerEventValid(eventName) {\n return eventName == 'start' || eventName == 'done';\n}\nfunction cloakElement(element, value) {\n const oldValue = element.style.display;\n element.style.display = value != null ? value : 'none';\n return oldValue;\n}\nfunction cloakAndComputeStyles(valuesMap, driver, elements, elementPropsMap, defaultStyle) {\n const cloakVals = [];\n elements.forEach(element => cloakVals.push(cloakElement(element)));\n const failedElements = [];\n elementPropsMap.forEach((props, element) => {\n const styles = new Map();\n props.forEach(prop => {\n const value = driver.computeStyle(element, prop, defaultStyle);\n styles.set(prop, value);\n // there is no easy way to detect this because a sub element could be removed\n // by a parent animation element being detached.\n if (!value || value.length == 0) {\n element[REMOVAL_FLAG] = NULL_REMOVED_QUERIED_STATE;\n failedElements.push(element);\n }\n });\n valuesMap.set(element, styles);\n });\n // we use a index variable here since Set.forEach(a, i) does not return\n // an index value for the closure (but instead just the value)\n let i = 0;\n elements.forEach(element => cloakElement(element, cloakVals[i++]));\n return failedElements;\n}\n/*\nSince the Angular renderer code will return a collection of inserted\nnodes in all areas of a DOM tree, it's up to this algorithm to figure\nout which nodes are roots for each animation @trigger.\n\nBy placing each inserted node into a Set and traversing upwards, it\nis possible to find the @trigger elements and well any direct *star\ninsertion nodes, if a @trigger root is found then the enter element\nis placed into the Map[@trigger] spot.\n */\nfunction buildRootMap(roots, nodes) {\n const rootMap = new Map();\n roots.forEach(root => rootMap.set(root, []));\n if (nodes.length == 0)\n return rootMap;\n const NULL_NODE = 1;\n const nodeSet = new Set(nodes);\n const localRootMap = new Map();\n function getRoot(node) {\n if (!node)\n return NULL_NODE;\n let root = localRootMap.get(node);\n if (root)\n return root;\n const parent = node.parentNode;\n if (rootMap.has(parent)) { // ngIf inside @trigger\n root = parent;\n }\n else if (nodeSet.has(parent)) { // ngIf inside ngIf\n root = NULL_NODE;\n }\n else { // recurse upwards\n root = getRoot(parent);\n }\n localRootMap.set(node, root);\n return root;\n }\n nodes.forEach(node => {\n const root = getRoot(node);\n if (root !== NULL_NODE) {\n rootMap.get(root).push(node);\n }\n });\n return rootMap;\n}\nfunction addClass(element, className) {\n element.classList?.add(className);\n}\nfunction removeClass(element, className) {\n element.classList?.remove(className);\n}\nfunction removeNodesAfterAnimationDone(engine, element, players) {\n optimizeGroupPlayer(players).onDone(() => engine.processLeaveNode(element));\n}\nfunction flattenGroupPlayers(players) {\n const finalPlayers = [];\n _flattenGroupPlayersRecur(players, finalPlayers);\n return finalPlayers;\n}\nfunction _flattenGroupPlayersRecur(players, finalPlayers) {\n for (let i = 0; i < players.length; i++) {\n const player = players[i];\n if (player instanceof ɵAnimationGroupPlayer) {\n _flattenGroupPlayersRecur(player.players, finalPlayers);\n }\n else {\n finalPlayers.push(player);\n }\n }\n}\nfunction objEquals(a, b) {\n const k1 = Object.keys(a);\n const k2 = Object.keys(b);\n if (k1.length != k2.length)\n return false;\n for (let i = 0; i < k1.length; i++) {\n const prop = k1[i];\n if (!b.hasOwnProperty(prop) || a[prop] !== b[prop])\n return false;\n }\n return true;\n}\nfunction replacePostStylesAsPre(element, allPreStyleElements, allPostStyleElements) {\n const postEntry = allPostStyleElements.get(element);\n if (!postEntry)\n return false;\n let preEntry = allPreStyleElements.get(element);\n if (preEntry) {\n postEntry.forEach(data => preEntry.add(data));\n }\n else {\n allPreStyleElements.set(element, postEntry);\n }\n allPostStyleElements.delete(element);\n return true;\n}\n\nclass AnimationEngine {\n constructor(bodyNode, _driver, _normalizer) {\n this.bodyNode = bodyNode;\n this._driver = _driver;\n this._normalizer = _normalizer;\n this._triggerCache = {};\n // this method is designed to be overridden by the code that uses this engine\n this.onRemovalComplete = (element, context) => { };\n this._transitionEngine = new TransitionAnimationEngine(bodyNode, _driver, _normalizer);\n this._timelineEngine = new TimelineAnimationEngine(bodyNode, _driver, _normalizer);\n this._transitionEngine.onRemovalComplete = (element, context) => this.onRemovalComplete(element, context);\n }\n registerTrigger(componentId, namespaceId, hostElement, name, metadata) {\n const cacheKey = componentId + '-' + name;\n let trigger = this._triggerCache[cacheKey];\n if (!trigger) {\n const errors = [];\n const warnings = [];\n const ast = buildAnimationAst(this._driver, metadata, errors, warnings);\n if (errors.length) {\n throw triggerBuildFailed(name, errors);\n }\n if (warnings.length) {\n warnTriggerBuild(name, warnings);\n }\n trigger = buildTrigger(name, ast, this._normalizer);\n this._triggerCache[cacheKey] = trigger;\n }\n this._transitionEngine.registerTrigger(namespaceId, name, trigger);\n }\n register(namespaceId, hostElement) {\n this._transitionEngine.register(namespaceId, hostElement);\n }\n destroy(namespaceId, context) {\n this._transitionEngine.destroy(namespaceId, context);\n }\n onInsert(namespaceId, element, parent, insertBefore) {\n this._transitionEngine.insertNode(namespaceId, element, parent, insertBefore);\n }\n onRemove(namespaceId, element, context, isHostElement) {\n this._transitionEngine.removeNode(namespaceId, element, isHostElement || false, context);\n }\n disableAnimations(element, disable) {\n this._transitionEngine.markElementAsDisabled(element, disable);\n }\n process(namespaceId, element, property, value) {\n if (property.charAt(0) == '@') {\n const [id, action] = parseTimelineCommand(property);\n const args = value;\n this._timelineEngine.command(id, element, action, args);\n }\n else {\n this._transitionEngine.trigger(namespaceId, element, property, value);\n }\n }\n listen(namespaceId, element, eventName, eventPhase, callback) {\n // @@listen\n if (eventName.charAt(0) == '@') {\n const [id, action] = parseTimelineCommand(eventName);\n return this._timelineEngine.listen(id, element, action, callback);\n }\n return this._transitionEngine.listen(namespaceId, element, eventName, eventPhase, callback);\n }\n flush(microtaskId = -1) {\n this._transitionEngine.flush(microtaskId);\n }\n get players() {\n return this._transitionEngine.players\n .concat(this._timelineEngine.players);\n }\n whenRenderingDone() {\n return this._transitionEngine.whenRenderingDone();\n }\n}\n\n/**\n * Returns an instance of `SpecialCasedStyles` if and when any special (non animateable) styles are\n * detected.\n *\n * In CSS there exist properties that cannot be animated within a keyframe animation\n * (whether it be via CSS keyframes or web-animations) and the animation implementation\n * will ignore them. This function is designed to detect those special cased styles and\n * return a container that will be executed at the start and end of the animation.\n *\n * @returns an instance of `SpecialCasedStyles` if any special styles are detected otherwise `null`\n */\nfunction packageNonAnimatableStyles(element, styles) {\n let startStyles = null;\n let endStyles = null;\n if (Array.isArray(styles) && styles.length) {\n startStyles = filterNonAnimatableStyles(styles[0]);\n if (styles.length > 1) {\n endStyles = filterNonAnimatableStyles(styles[styles.length - 1]);\n }\n }\n else if (styles instanceof Map) {\n startStyles = filterNonAnimatableStyles(styles);\n }\n return (startStyles || endStyles) ? new SpecialCasedStyles(element, startStyles, endStyles) :\n null;\n}\n/**\n * Designed to be executed during a keyframe-based animation to apply any special-cased styles.\n *\n * When started (when the `start()` method is run) then the provided `startStyles`\n * will be applied. When finished (when the `finish()` method is called) the\n * `endStyles` will be applied as well any any starting styles. Finally when\n * `destroy()` is called then all styles will be removed.\n */\nclass SpecialCasedStyles {\n constructor(_element, _startStyles, _endStyles) {\n this._element = _element;\n this._startStyles = _startStyles;\n this._endStyles = _endStyles;\n this._state = 0 /* SpecialCasedStylesState.Pending */;\n let initialStyles = SpecialCasedStyles.initialStylesByElement.get(_element);\n if (!initialStyles) {\n SpecialCasedStyles.initialStylesByElement.set(_element, initialStyles = new Map());\n }\n this._initialStyles = initialStyles;\n }\n start() {\n if (this._state < 1 /* SpecialCasedStylesState.Started */) {\n if (this._startStyles) {\n setStyles(this._element, this._startStyles, this._initialStyles);\n }\n this._state = 1 /* SpecialCasedStylesState.Started */;\n }\n }\n finish() {\n this.start();\n if (this._state < 2 /* SpecialCasedStylesState.Finished */) {\n setStyles(this._element, this._initialStyles);\n if (this._endStyles) {\n setStyles(this._element, this._endStyles);\n this._endStyles = null;\n }\n this._state = 1 /* SpecialCasedStylesState.Started */;\n }\n }\n destroy() {\n this.finish();\n if (this._state < 3 /* SpecialCasedStylesState.Destroyed */) {\n SpecialCasedStyles.initialStylesByElement.delete(this._element);\n if (this._startStyles) {\n eraseStyles(this._element, this._startStyles);\n this._endStyles = null;\n }\n if (this._endStyles) {\n eraseStyles(this._element, this._endStyles);\n this._endStyles = null;\n }\n setStyles(this._element, this._initialStyles);\n this._state = 3 /* SpecialCasedStylesState.Destroyed */;\n }\n }\n}\nSpecialCasedStyles.initialStylesByElement = ( /* @__PURE__ */new WeakMap());\nfunction filterNonAnimatableStyles(styles) {\n let result = null;\n styles.forEach((val, prop) => {\n if (isNonAnimatableStyle(prop)) {\n result = result || new Map();\n result.set(prop, val);\n }\n });\n return result;\n}\nfunction isNonAnimatableStyle(prop) {\n return prop === 'display' || prop === 'position';\n}\n\nclass WebAnimationsPlayer {\n constructor(element, keyframes, options, _specialStyles) {\n this.element = element;\n this.keyframes = keyframes;\n this.options = options;\n this._specialStyles = _specialStyles;\n this._onDoneFns = [];\n this._onStartFns = [];\n this._onDestroyFns = [];\n this._initialized = false;\n this._finished = false;\n this._started = false;\n this._destroyed = false;\n // the following original fns are persistent copies of the _onStartFns and _onDoneFns\n // and are used to reset the fns to their original values upon reset()\n // (since the _onStartFns and _onDoneFns get deleted after they are called)\n this._originalOnDoneFns = [];\n this._originalOnStartFns = [];\n this.time = 0;\n this.parentPlayer = null;\n this.currentSnapshot = new Map();\n this._duration = options['duration'];\n this._delay = options['delay'] || 0;\n this.time = this._duration + this._delay;\n }\n _onFinish() {\n if (!this._finished) {\n this._finished = true;\n this._onDoneFns.forEach(fn => fn());\n this._onDoneFns = [];\n }\n }\n init() {\n this._buildPlayer();\n this._preparePlayerBeforeStart();\n }\n _buildPlayer() {\n if (this._initialized)\n return;\n this._initialized = true;\n const keyframes = this.keyframes;\n this.domPlayer =\n this._triggerWebAnimation(this.element, keyframes, this.options);\n this._finalKeyframe = keyframes.length ? keyframes[keyframes.length - 1] : new Map();\n this.domPlayer.addEventListener('finish', () => this._onFinish());\n }\n _preparePlayerBeforeStart() {\n // this is required so that the player doesn't start to animate right away\n if (this._delay) {\n this._resetDomPlayerState();\n }\n else {\n this.domPlayer.pause();\n }\n }\n _convertKeyframesToObject(keyframes) {\n const kfs = [];\n keyframes.forEach(frame => {\n kfs.push(Object.fromEntries(frame));\n });\n return kfs;\n }\n /** @internal */\n _triggerWebAnimation(element, keyframes, options) {\n // jscompiler doesn't seem to know animate is a native property because it's not fully\n // supported yet across common browsers (we polyfill it for Edge/Safari) [CL #143630929]\n return element['animate'](this._convertKeyframesToObject(keyframes), options);\n }\n onStart(fn) {\n this._originalOnStartFns.push(fn);\n this._onStartFns.push(fn);\n }\n onDone(fn) {\n this._originalOnDoneFns.push(fn);\n this._onDoneFns.push(fn);\n }\n onDestroy(fn) {\n this._onDestroyFns.push(fn);\n }\n play() {\n this._buildPlayer();\n if (!this.hasStarted()) {\n this._onStartFns.forEach(fn => fn());\n this._onStartFns = [];\n this._started = true;\n if (this._specialStyles) {\n this._specialStyles.start();\n }\n }\n this.domPlayer.play();\n }\n pause() {\n this.init();\n this.domPlayer.pause();\n }\n finish() {\n this.init();\n if (this._specialStyles) {\n this._specialStyles.finish();\n }\n this._onFinish();\n this.domPlayer.finish();\n }\n reset() {\n this._resetDomPlayerState();\n this._destroyed = false;\n this._finished = false;\n this._started = false;\n this._onStartFns = this._originalOnStartFns;\n this._onDoneFns = this._originalOnDoneFns;\n }\n _resetDomPlayerState() {\n if (this.domPlayer) {\n this.domPlayer.cancel();\n }\n }\n restart() {\n this.reset();\n this.play();\n }\n hasStarted() {\n return this._started;\n }\n destroy() {\n if (!this._destroyed) {\n this._destroyed = true;\n this._resetDomPlayerState();\n this._onFinish();\n if (this._specialStyles) {\n this._specialStyles.destroy();\n }\n this._onDestroyFns.forEach(fn => fn());\n this._onDestroyFns = [];\n }\n }\n setPosition(p) {\n if (this.domPlayer === undefined) {\n this.init();\n }\n this.domPlayer.currentTime = p * this.time;\n }\n getPosition() {\n return this.domPlayer.currentTime / this.time;\n }\n get totalTime() {\n return this._delay + this._duration;\n }\n beforeDestroy() {\n const styles = new Map();\n if (this.hasStarted()) {\n // note: this code is invoked only when the `play` function was called prior to this\n // (thus `hasStarted` returns true), this implies that the code that initializes\n // `_finalKeyframe` has also been executed and the non-null assertion can be safely used here\n const finalKeyframe = this._finalKeyframe;\n finalKeyframe.forEach((val, prop) => {\n if (prop !== 'offset') {\n styles.set(prop, this._finished ? val : computeStyle(this.element, prop));\n }\n });\n }\n this.currentSnapshot = styles;\n }\n /** @internal */\n triggerCallback(phaseName) {\n const methods = phaseName === 'start' ? this._onStartFns : this._onDoneFns;\n methods.forEach(fn => fn());\n methods.length = 0;\n }\n}\n\nclass WebAnimationsDriver {\n validateStyleProperty(prop) {\n // Perform actual validation in dev mode only, in prod mode this check is a noop.\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n return validateStyleProperty(prop);\n }\n return true;\n }\n validateAnimatableStyleProperty(prop) {\n // Perform actual validation in dev mode only, in prod mode this check is a noop.\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n const cssProp = camelCaseToDashCase(prop);\n return validateWebAnimatableStyleProperty(cssProp);\n }\n return true;\n }\n matchesElement(_element, _selector) {\n // This method is deprecated and no longer in use so we return false.\n return false;\n }\n containsElement(elm1, elm2) {\n return containsElement(elm1, elm2);\n }\n getParentElement(element) {\n return getParentElement(element);\n }\n query(element, selector, multi) {\n return invokeQuery(element, selector, multi);\n }\n computeStyle(element, prop, defaultValue) {\n return window.getComputedStyle(element)[prop];\n }\n animate(element, keyframes, duration, delay, easing, previousPlayers = []) {\n const fill = delay == 0 ? 'both' : 'forwards';\n const playerOptions = { duration, delay, fill };\n // we check for this to avoid having a null|undefined value be present\n // for the easing (which results in an error for certain browsers #9752)\n if (easing) {\n playerOptions['easing'] = easing;\n }\n const previousStyles = new Map();\n const previousWebAnimationPlayers = previousPlayers.filter(player => player instanceof WebAnimationsPlayer);\n if (allowPreviousPlayerStylesMerge(duration, delay)) {\n previousWebAnimationPlayers.forEach(player => {\n player.currentSnapshot.forEach((val, prop) => previousStyles.set(prop, val));\n });\n }\n let _keyframes = normalizeKeyframes(keyframes).map(styles => copyStyles(styles));\n _keyframes = balancePreviousStylesIntoKeyframes(element, _keyframes, previousStyles);\n const specialStyles = packageNonAnimatableStyles(element, _keyframes);\n return new WebAnimationsPlayer(element, _keyframes, playerOptions, specialStyles);\n }\n}\n\n/**\n * @module\n * @description\n * Entry point for all animation APIs of the animation browser package.\n */\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AnimationDriver, Animation as ɵAnimation, AnimationEngine as ɵAnimationEngine, AnimationStyleNormalizer as ɵAnimationStyleNormalizer, NoopAnimationDriver as ɵNoopAnimationDriver, NoopAnimationStyleNormalizer as ɵNoopAnimationStyleNormalizer, WebAnimationsDriver as ɵWebAnimationsDriver, WebAnimationsPlayer as ɵWebAnimationsPlayer, WebAnimationsStyleNormalizer as ɵWebAnimationsStyleNormalizer, allowPreviousPlayerStylesMerge as ɵallowPreviousPlayerStylesMerge, containsElement as ɵcontainsElement, getParentElement as ɵgetParentElement, invokeQuery as ɵinvokeQuery, normalizeKeyframes as ɵnormalizeKeyframes, validateStyleProperty as ɵvalidateStyleProperty };\n","/**\n * @license Angular v15.2.1\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { InjectionToken, Injectable, ɵɵinject, Inject, inject, Optional, EventEmitter, ɵfindLocaleData, ɵLocaleDataIndex, ɵgetLocaleCurrencyCode, ɵgetLocalePluralCase, LOCALE_ID, ɵregisterLocaleData, ɵstringify, Directive, Input, createNgModule, NgModuleRef, ɵRuntimeError, Host, Attribute, RendererStyleFlags2, ɵisPromise, ɵisSubscribable, Pipe, DEFAULT_CURRENCY_CODE, NgModule, Version, ɵɵdefineInjectable, ɵformatRuntimeError, Renderer2, ElementRef, Injector, PLATFORM_ID, NgZone } from '@angular/core';\n\nlet _DOM = null;\nfunction getDOM() {\n return _DOM;\n}\nfunction setRootDomAdapter(adapter) {\n if (!_DOM) {\n _DOM = adapter;\n }\n}\n/* tslint:disable:requireParameterType */\n/**\n * Provides DOM operations in an environment-agnostic way.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\nclass DomAdapter {\n}\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 in a Web Worker).\n *\n * @publicApi\n */\nconst DOCUMENT = new InjectionToken('DocumentToken');\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\n * platform-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-server` provides\n * one suitable for use with server-side rendering.\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-agnostic.\n *\n * @publicApi\n */\nclass PlatformLocation {\n historyGo(relativePosition) {\n throw new Error('Not implemented');\n }\n}\nPlatformLocation.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: PlatformLocation, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nPlatformLocation.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: PlatformLocation, providedIn: 'platform', useFactory: useBrowserPlatformLocation });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: PlatformLocation, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'platform',\n // See #23917\n useFactory: useBrowserPlatformLocation\n }]\n }] });\nfunction useBrowserPlatformLocation() {\n return ɵɵinject(BrowserPlatformLocation);\n}\n/**\n * @description\n * Indicates when a location is initialized.\n *\n * @publicApi\n */\nconst LOCATION_INITIALIZED = new InjectionToken('Location Initialized');\n/**\n * `PlatformLocation` encapsulates all of the direct calls to platform APIs.\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n *\n * @publicApi\n */\nclass BrowserPlatformLocation extends PlatformLocation {\n constructor(_doc) {\n super();\n this._doc = _doc;\n this._location = window.location;\n this._history = window.history;\n }\n getBaseHrefFromDOM() {\n return getDOM().getBaseHref(this._doc);\n }\n onPopState(fn) {\n const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n window.addEventListener('popstate', fn, false);\n return () => window.removeEventListener('popstate', fn);\n }\n onHashChange(fn) {\n const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n window.addEventListener('hashchange', fn, false);\n return () => window.removeEventListener('hashchange', fn);\n }\n get href() {\n return this._location.href;\n }\n get protocol() {\n return this._location.protocol;\n }\n get hostname() {\n return this._location.hostname;\n }\n get port() {\n return this._location.port;\n }\n get pathname() {\n return this._location.pathname;\n }\n get search() {\n return this._location.search;\n }\n get hash() {\n return this._location.hash;\n }\n set pathname(newPath) {\n this._location.pathname = newPath;\n }\n pushState(state, title, url) {\n if (supportsState()) {\n this._history.pushState(state, title, url);\n }\n else {\n this._location.hash = url;\n }\n }\n replaceState(state, title, url) {\n if (supportsState()) {\n this._history.replaceState(state, title, url);\n }\n else {\n this._location.hash = url;\n }\n }\n forward() {\n this._history.forward();\n }\n back() {\n this._history.back();\n }\n historyGo(relativePosition = 0) {\n this._history.go(relativePosition);\n }\n getState() {\n return this._history.state;\n }\n}\nBrowserPlatformLocation.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: BrowserPlatformLocation, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nBrowserPlatformLocation.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: BrowserPlatformLocation, providedIn: 'platform', useFactory: createBrowserPlatformLocation });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: BrowserPlatformLocation, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'platform',\n // See #23917\n useFactory: createBrowserPlatformLocation,\n }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }]; } });\nfunction supportsState() {\n return !!window.history.pushState;\n}\nfunction createBrowserPlatformLocation() {\n return new BrowserPlatformLocation(ɵɵinject(DOCUMENT));\n}\n\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param start URL string\n * @param end URL string\n *\n *\n * @returns The joined URL string.\n */\nfunction joinWithSlash(start, end) {\n if (start.length == 0) {\n return end;\n }\n if (end.length == 0) {\n return start;\n }\n let 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 * Removes a trailing slash from a URL string if needed.\n * 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 The URL string, modified if needed.\n */\nfunction stripTrailingSlash(url) {\n const match = url.match(/#|\\?|$/);\n const pathEndIdx = match && match.index || url.length;\n const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);\n return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);\n}\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param params String of URL parameters.\n *\n * @returns The normalized URL parameters string.\n */\nfunction normalizeQueryParams(params) {\n return params && params[0] !== '?' ? '?' + params : params;\n}\n\n/**\n * Enables the `Location` service to read route state from the browser's URL.\n * Angular provides two strategies:\n * `HashLocationStrategy` and `PathLocationStrategy`.\n *\n * Applications should use the `Router` or `Location` services to\n * interact with application route state.\n *\n * For instance, `HashLocationStrategy` produces URLs like\n * \n * {{ item }}\n *
\n * http://example.com#/foo,\n * and `PathLocationStrategy` produces\n * http://example.com/foo as an equivalent URL.\n *\n * See these two classes for more.\n *\n * @publicApi\n */\nclass LocationStrategy {\n historyGo(relativePosition) {\n throw new Error('Not implemented');\n }\n}\nLocationStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: LocationStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nLocationStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: LocationStrategy, providedIn: 'root', useFactory: () => inject(PathLocationStrategy) });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: LocationStrategy, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root', useFactory: () => inject(PathLocationStrategy) }]\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 */\nconst APP_BASE_HREF = new InjectionToken('appBaseHref');\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 may provide a {@link APP_BASE_HREF}\n * or add a `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.
Content to render when condition is true.
\n * {{value}}
\n * \n * ...\n *
\n *\n * Loading...
\n * \n * ...\n *
\n * Loading...
\n * \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\nclass DatePipe {\n constructor(locale, defaultTimezone, defaultOptions) {\n this.locale = locale;\n this.defaultTimezone = defaultTimezone;\n this.defaultOptions = defaultOptions;\n }\n transform(value, format, timezone, locale) {\n if (value == null || value === '' || value !== value)\n return null;\n try {\n const _format = format ?? this.defaultOptions?.dateFormat ?? DEFAULT_DATE_FORMAT;\n const _timezone = timezone ?? this.defaultOptions?.timezone ?? this.defaultTimezone ?? undefined;\n return formatDate(value, _format, locale || this.locale, _timezone);\n }\n catch (error) {\n throw invalidPipeArgumentError(DatePipe, error.message);\n }\n }\n}\nDatePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: DatePipe, deps: [{ token: LOCALE_ID }, { token: DATE_PIPE_DEFAULT_TIMEZONE, optional: true }, { token: DATE_PIPE_DEFAULT_OPTIONS, optional: true }], target: i0.ɵɵFactoryTarget.Pipe });\nDatePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: DatePipe, isStandalone: true, name: \"date\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: DatePipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'date',\n pure: true,\n standalone: true,\n }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }, { type: undefined, decorators: [{\n type: Inject,\n args: [DATE_PIPE_DEFAULT_TIMEZONE]\n }, {\n type: Optional\n }] }, { type: undefined, decorators: [{\n type: Inject,\n args: [DATE_PIPE_DEFAULT_OPTIONS]\n }, {\n type: Optional\n }] }]; } });\n\nconst _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 */\nclass I18nPluralPipe {\n constructor(_localization) {\n this._localization = _localization;\n }\n /**\n * @param value the number to be formatted\n * @param pluralMap an object that mimics the ICU format, see\n * https://unicode-org.github.io/icu/userguide/format_parse/messages/.\n * @param locale a `string` defining the locale to use (uses the current {@link LOCALE_ID} by\n * default).\n */\n transform(value, pluralMap, locale) {\n if (value == null)\n return '';\n if (typeof pluralMap !== 'object' || pluralMap === null) {\n throw invalidPipeArgumentError(I18nPluralPipe, pluralMap);\n }\n const key = getPluralCategory(value, Object.keys(pluralMap), this._localization, locale);\n return pluralMap[key].replace(_INTERPOLATION_REGEXP, value.toString());\n }\n}\nI18nPluralPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nPluralPipe, deps: [{ token: NgLocalization }], target: i0.ɵɵFactoryTarget.Pipe });\nI18nPluralPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nPluralPipe, isStandalone: true, name: \"i18nPlural\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nPluralPipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'i18nPlural',\n pure: true,\n standalone: true,\n }]\n }], ctorParameters: function () { return [{ type: NgLocalization }]; } });\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 */\nclass 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 transform(value, mapping) {\n if (value == null)\n return '';\n if (typeof mapping !== 'object' || typeof value !== 'string') {\n throw invalidPipeArgumentError(I18nSelectPipe, 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}\nI18nSelectPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nSelectPipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nI18nSelectPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nSelectPipe, isStandalone: true, name: \"i18nSelect\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: I18nSelectPipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'i18nSelect',\n pure: true,\n standalone: true,\n }]\n }] });\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 */\nclass JsonPipe {\n /**\n * @param value A value of any type to convert into a JSON-format string.\n */\n transform(value) {\n return JSON.stringify(value, null, 2);\n }\n}\nJsonPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: JsonPipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nJsonPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: JsonPipe, isStandalone: true, name: \"json\", pure: false });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: JsonPipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'json',\n pure: false,\n standalone: true,\n }]\n }] });\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\n * keyvalue pipe.\n *\n * {@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}\n *\n * @publicApi\n */\nclass KeyValuePipe {\n constructor(differs) {\n this.differs = differs;\n this.keyValues = [];\n this.compareFn = defaultComparator;\n }\n transform(input, 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 const differChanges = this.differ.diff(input);\n const compareFnChanged = compareFn !== this.compareFn;\n if (differChanges) {\n this.keyValues = [];\n differChanges.forEachItem((r) => {\n this.keyValues.push(makeKeyValuePair(r.key, r.currentValue));\n });\n }\n if (differChanges || compareFnChanged) {\n this.keyValues.sort(compareFn);\n this.compareFn = compareFn;\n }\n return this.keyValues;\n }\n}\nKeyValuePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: KeyValuePipe, deps: [{ token: i0.KeyValueDiffers }], target: i0.ɵɵFactoryTarget.Pipe });\nKeyValuePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: KeyValuePipe, isStandalone: true, name: \"keyvalue\", pure: false });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: KeyValuePipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'keyvalue',\n pure: false,\n standalone: true,\n }]\n }], ctorParameters: function () { return [{ type: i0.KeyValueDiffers }]; } });\nfunction defaultComparator(keyValueA, keyValueB) {\n const a = keyValueA.key;\n const 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 const aString = String(a);\n const bString = String(b);\n return aString == bString ? 0 : aString < bString ? -1 : 1;\n}\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a value according to digit options and locale rules.\n * Locale determines group sizing and separator,\n * decimal point character, and other locale-specific configurations.\n *\n * @see `formatNumber()`\n *\n * @usageNotes\n *\n * ### digitsInfo\n *\n * The value's decimal representation is specified by the `digitsInfo`\n * parameter, written in the following format: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 * ```\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}\n * ```\n *\n * - `minIntegerDigits`:\n * The minimum number of integer digits before the decimal point.\n * Default is 1.\n *\n * - `minFractionDigits`:\n * The minimum number of digits after the decimal point.\n * Default is 0.\n *\n * - `maxFractionDigits`:\n * The maximum number of digits after the decimal point.\n * Default is 3.\n *\n * If the formatted value is truncated it will be rounded using the \"to-nearest\" method:\n *\n * ```\n * {{3.6 | number: '1.0-0'}}\n * \n *\n * {{-3.6 | number:'1.0-0'}}\n * \n * ```\n *\n * ### locale\n *\n * `locale` will format a value according to locale rules.\n * Locale determines group sizing and separator,\n * decimal point character, and other locale-specific configurations.\n *\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n *\n * See [Setting your app locale](guide/i18n-common-locale-id).\n *\n * ### Example\n *\n * The following code shows how the pipe transforms values\n * according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n *
\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-common-locale-id).\n */\n transform(value, digitsInfo, locale) {\n if (!isValue(value))\n return null;\n locale = locale || this._locale;\n try {\n const num = strToNumber(value);\n return formatPercent(num, locale, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(PercentPipe, error.message);\n }\n }\n}\nPercentPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: PercentPipe, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Pipe });\nPercentPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: PercentPipe, isStandalone: true, name: \"percent\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: PercentPipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'percent',\n standalone: true,\n }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\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 *\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 *
{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-common-locale-id).\n */\n transform(value, currencyCode = this._defaultCurrencyCode, display = 'symbol', digitsInfo, locale) {\n if (!isValue(value))\n return null;\n locale = locale || this._locale;\n if (typeof display === 'boolean') {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && 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 let currency = currencyCode || this._defaultCurrencyCode;\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 const num = strToNumber(value);\n return formatCurrency(num, locale, currency, currencyCode, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(CurrencyPipe, error.message);\n }\n }\n}\nCurrencyPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: CurrencyPipe, deps: [{ token: LOCALE_ID }, { token: DEFAULT_CURRENCY_CODE }], target: i0.ɵɵFactoryTarget.Pipe });\nCurrencyPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"15.2.1\", ngImport: i0, type: CurrencyPipe, isStandalone: true, name: \"currency\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"15.2.1\", ngImport: i0, type: CurrencyPipe, decorators: [{\n type: Pipe,\n args: [{\n name: 'currency',\n standalone: true,\n }]\n }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }, { type: undefined, decorators: [{\n type: Inject,\n args: [DEFAULT_CURRENCY_CODE]\n }] }]; } });\nfunction isValue(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 * @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 *