Class NoopAnimationPlayer

packages/animations/src/players/animation_player.ts:124–214

 * @deprecated 20.2 Use `animate.enter` or `animate.leave` instead. Intent to remove in v23
 */
export class NoopAnimationPlayer implements AnimationPlayer {
  private _onDoneFns: Function[] = [];
  private _onStartFns: Function[] = [];
  private _onDestroyFns: Function[] = [];
  private _originalOnDoneFns: Function[] = [];
  private _originalOnStartFns: Function[] = [];
  private _started = false;
  private _destroyed = false;
  private _finished = false;
  private _position = 0;
  public parentPlayer: AnimationPlayer | null = null;
  public readonly totalTime: number;
  constructor(duration: number = 0, delay: number = 0) {
    this.totalTime = duration + delay;
  }
  private _onFinish() {
    if (!this._finished) {
      this._finished = true;
      this._onDoneFns.forEach((fn) => fn());
      this._onDoneFns = [];
    }
  }
  onStart(fn: () => void): void {
    this._originalOnStartFns.push(fn);
    this._onStartFns.push(fn);
  }
  onDone(fn: () => void): void {
    this._originalOnDoneFns.push(fn);
    this._onDoneFns.push(fn);
  }
  onDestroy(fn: () => void): void {
    this._onDestroyFns.push(fn);
  }
  hasStarted(): boolean {
    return this._started;
  }
  init(): void {}
  play(): void {
    if (!this.hasStarted()) {
      this._onStart();
      this.triggerMicrotask();
    }
    this._started = true;
  }

  /** @internal */
  triggerMicrotask() {
    queueMicrotask(() => this._onFinish());
  }

  private _onStart() {
    this._onStartFns.forEach((fn) => fn());
    this._onStartFns = [];
  }

  pause(): void {}
  restart(): void {}
  finish(): void {