@taiga-ui/kit/fesm2022/taiga-ui-kit-directives-lazy-loading.mjs.map

Taiga UI Angular main components kit

{"version":3,"file":"taiga-ui-kit-directives-lazy-loading.mjs","sources":["../../../projects/kit/directives/lazy-loading/lazy-loading.service.ts","../../../projects/kit/directives/lazy-loading/lazy-loading.directive.ts","../../../projects/kit/directives/lazy-loading/taiga-ui-kit-directives-lazy-loading.ts"],"sourcesContent":["import {inject, Injectable} from '@angular/core';\nimport type {SafeResourceUrl} from '@angular/platform-browser';\nimport {IntersectionObserverService} from '@ng-web-apis/intersection-observer';\nimport {tuiWatch} from '@taiga-ui/cdk/observables';\nimport {filter, map, Observable, Subject, switchMap, take} from 'rxjs';\n\n@Injectable()\nexport class TuiLazyLoadingService extends Observable<SafeResourceUrl | string> {\n    private readonly src$ = new Subject<SafeResourceUrl | string>();\n    private readonly intersections$ = inject(IntersectionObserverService);\n    private readonly stream$ = this.src$.pipe(\n        switchMap((src) =>\n            this.intersections$.pipe(\n                filter((entry) => !!entry[0]?.isIntersecting),\n                map(() => src),\n                take(1),\n            ),\n        ),\n        tuiWatch(),\n    );\n\n    constructor() {\n        super((subscriber) => this.stream$.subscribe(subscriber));\n    }\n\n    public next(src: SafeResourceUrl | string): void {\n        this.src$.next(src);\n    }\n}\n","import {isPlatformServer} from '@angular/common';\nimport {Directive, inject, Input, PLATFORM_ID, signal} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport type {SafeResourceUrl} from '@angular/platform-browser';\nimport {IntersectionObserverService} from '@ng-web-apis/intersection-observer';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\n\nimport {TuiLazyLoadingService} from './lazy-loading.service';\n\n/**\n * @deprecated: Drop in v5.0\n */\n@Directive({\n    standalone: true,\n    selector: 'img[loading=\"lazy\"],img[tuiLoading=\"lazy\"]',\n    providers: [TuiLazyLoadingService, IntersectionObserverService],\n    host: {\n        '[style.animation]': 'animation()',\n        '[style.background]': 'background()',\n        '[attr.loading]': 'supported ? \"lazy\" : null',\n        '[attr.src]': 'src()',\n        '(load)': 'unset()',\n        '(error)': 'unset()',\n    },\n})\nexport class TuiImgLazyLoading {\n    private readonly isServer = isPlatformServer(inject(PLATFORM_ID));\n    private readonly loading$ = inject(TuiLazyLoadingService);\n    protected readonly supported = 'loading' in tuiInjectElement<HTMLImageElement>();\n    protected src = signal<SafeResourceUrl | string | null>(null);\n    protected background = signal(this.isServer ? '' : 'var(--tui-background-neutral-2)');\n    protected animation = signal(\n        this.isServer ? '' : 'tuiSkeletonVibe ease-in-out 1s infinite alternate',\n    );\n\n    protected readonly $ =\n        !this.supported &&\n        this.loading$.pipe(takeUntilDestroyed()).subscribe((src) => this.src.set(src));\n\n    @Input('src')\n    public set srcSetter(src: SafeResourceUrl | string) {\n        if (this.supported) {\n            this.src.set(src);\n        } else {\n            this.loading$.next(src);\n        }\n    }\n\n    protected unset(): void {\n        this.background.set('');\n        this.animation.set('');\n    }\n}\n","/**\n * Generated bundle index. 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