@taiga-ui/cdk/esm2022/tokens/removed-element.mjs

Base library for creating Angular components and applications using Taiga UI principles regarding of actual visual appearance

import { ɵAnimationEngine as AnimationEngine } from '@angular/animations/browser';
import { inject } from '@angular/core';
import { tuiCreateTokenFromFactory } from '@taiga-ui/cdk/utils';
import { BehaviorSubject, map, share, startWith, switchMap, timer } from 'rxjs';
/**
 * Element currently being removed by AnimationEngine
 */
export const TUI_REMOVED_ELEMENT = tuiCreateTokenFromFactory(() => {
    const stub = { onRemovalComplete: () => { } };
    const element$ = new BehaviorSubject(null);
    const engine = inject(AnimationEngine, { optional: true }) || stub;
    const { onRemovalComplete = stub.onRemovalComplete } = engine;
    engine.onRemovalComplete = (element, context) => {
        element$.next(element);
        onRemovalComplete.call(engine, element, context);
    };
    return element$.pipe(switchMap((element) => timer(0).pipe(map(() => null), startWith(element))), share());
});
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