embla-carousel-angular/fesm2022/embla-carousel-angular.mjs.map

Angular wrapper for Embla Carousel

{"version":3,"file":"embla-carousel-angular.mjs","sources":["../../src/lib/utils.ts","../../src/lib/embla-carousel.directive.ts","../../src/public-api.ts","../../src/embla-carousel-angular.ts"],"sourcesContent":["import { InjectionToken, Provider } from '@angular/core'\nimport { EmblaOptionsType } from 'embla-carousel'\nimport { Observable, filter, map, scan } from 'rxjs'\n\nexport const EMBLA_OPTIONS_TOKEN = new InjectionToken<\nEmblaOptionsType | undefined\n>('embla global options', {\n  factory: () => undefined,\n})\n\nexport function provideEmblaGlobalOptions(\n  options?: EmblaOptionsType,\n): Provider[] {\n  return [\n    {\n      provide: EMBLA_OPTIONS_TOKEN,\n      useValue: options,\n    },\n  ]\n}\n\n// Solution from https://stackoverflow.com/a/53627167\nexport function throttleDistinct<T>(\n  duration: number,\n  equals: (a: T, b: T) => boolean = (a, b) => a === b,\n) {\n  return (source: Observable<T>) => {\n    return source\n      .pipe(\n        map(x => {\n          return {\n            value: x,\n            time: Date.now(),\n            keep: true,\n          }\n        }),\n        scan((acc, curr) => {\n          const diff = curr.time - acc.time\n\n          const isSame = equals(curr.value, acc.value)\n          return diff > duration || (diff < duration && !isSame)\n            ? { ...curr, keep: true }\n            : { ...acc, keep: false }\n        }),\n        filter(x => x.keep),\n        map(x => x.value),\n      )\n  }\n}\n","import {\n  DestroyRef,\n  Directive,\n  ElementRef,\n  NgZone,\n  afterNextRender,\n  effect,\n  inject,\n  input,\n  output,\n} from '@angular/core'\nimport EmblaCarousel, {\n  EmblaCarouselType,\n  EmblaEventType,\n  EmblaOptionsType,\n  EmblaPluginType,\n} from 'embla-carousel'\nimport {\n  areOptionsEqual,\n  arePluginsEqual,\n  canUseDOM,\n} from 'embla-carousel-reactive-utils'\nimport { Subject } from 'rxjs'\nimport { takeUntilDestroyed } from '@angular/core/rxjs-interop'\nimport { EMBLA_OPTIONS_TOKEN, throttleDistinct } from './utils'\n\n@Directive({\n  selector: '[emblaCarousel]',\n  exportAs: 'emblaCarousel',\n})\nexport class EmblaCarouselDirective {\n  protected _globalOptions = inject(EMBLA_OPTIONS_TOKEN)\n  protected _ngZone = inject(NgZone)\n  protected _elementRef = inject<ElementRef<HTMLElement>>(ElementRef)\n  protected _destroyRef = inject(DestroyRef)\n\n  options = input<EmblaOptionsType>({})\n  plugins = input<EmblaPluginType[]>([])\n  subscribeToEvents = input<EmblaEventType[]>([])\n  eventsThrottleTime = input(100)\n\n  readonly emblaChange = output<EmblaEventType>()\n\n  protected _destroy$ = new Subject<void>()\n  private storedOptions = this.options()\n  private storedPlugins = this.plugins()\n  emblaApi?: EmblaCarouselType\n\n  constructor() {\n    if (this._globalOptions) {\n      EmblaCarousel.globalOptions = this._globalOptions\n    }\n\n    // Init Embla Carousel\n    afterNextRender({\n      write: () => {\n        if (!canUseDOM()) return\n        this._ngZone.runOutsideAngular(() => {\n          this.emblaApi = EmblaCarousel(this._elementRef.nativeElement, this.storedOptions, this.storedPlugins)\n          this.listenEvents()\n        })\n      },\n    })\n\n    // Watch input changes\n    effect(() => {\n      const plugins = this.plugins()\n      const options = this.options()\n      let shouldReInit = false\n\n      if (options && !areOptionsEqual(this.storedOptions, options)) {\n        this.storedOptions = options\n        shouldReInit = true\n      }\n\n      if (plugins && !arePluginsEqual(this.storedPlugins, plugins)) {\n        this.storedPlugins = plugins\n        shouldReInit = true\n      }\n\n      if (shouldReInit) {\n        this.reInit()\n      }\n    })\n\n    // Cleanup Embla Carousel\n    this._destroyRef.onDestroy(() => {\n      this.emblaApi?.destroy()\n    })\n  }\n\n  scrollTo(...args: Parameters<EmblaCarouselType['scrollTo']>): void {\n    this._ngZone.runOutsideAngular(() => this.emblaApi?.scrollTo(...args))\n  }\n\n  scrollPrev(...args: Parameters<EmblaCarouselType['scrollPrev']>): void {\n    this._ngZone.runOutsideAngular(() => this.emblaApi?.scrollPrev(...args))\n  }\n\n  scrollNext(...args: Parameters<EmblaCarouselType['scrollNext']>): void {\n    this._ngZone.runOutsideAngular(() => this.emblaApi?.scrollNext(...args))\n  }\n\n  reInit() {\n    if (!this.emblaApi) {\n      return\n    }\n\n    this._ngZone.runOutsideAngular(() => {\n      this.emblaApi?.reInit(this.storedOptions, this.storedPlugins)\n    })\n  }\n\n  /**\n   * `eventsThrottler$` Subject was made just because `scroll` event fires too often.\n   */\n  private listenEvents(): void {\n    if (this.subscribeToEvents().length === 0) {\n      return\n    }\n\n    const eventsThrottler$ = new Subject<EmblaEventType>()\n\n    eventsThrottler$\n      .pipe(\n        throttleDistinct(this.eventsThrottleTime()),\n        takeUntilDestroyed(this._destroyRef),\n      )\n      .subscribe(eventName => {\n        this._ngZone.run(() => this.emblaChange.emit(eventName))\n      })\n\n    this._ngZone.runOutsideAngular(() => {\n      this.subscribeToEvents().forEach(eventName => {\n        this.emblaApi!.on(eventName, () => eventsThrottler$.next(eventName))\n      })\n    })\n  }\n}\n","/*\n * Public API Surface of embla-carousel-angular\n */\n\nexport {\n  EmblaCarouselType,\n  EmblaEventType,\n  EmblaOptionsType,\n  EmblaPluginType,\n} from 'embla-carousel'\nexport { EmblaCarouselDirective } from './lib/embla-carousel.directive'\nexport { EMBLA_OPTIONS_TOKEN, provideEmblaGlobalOptions } from './lib/utils'\n","/**\n * Generated bundle index. 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