Method dispose

src/cdk/overlay/overlay-ref.ts:255–287

Cleans up the overlay from the DOM.

()

  /** Cleans up the overlay from the DOM. */
  dispose(): void {
    if (this._disposed) {
      return;
    }

    const isAttached = this.hasAttached();

    if (this._positionStrategy) {
      this._positionStrategy.dispose();
    }

    this._disposeScrollStrategy();
    this._backdropRef?.dispose();
    this._locationChanges.unsubscribe();
    this._keyboardDispatcher.remove(this);
    this._portalOutlet.dispose();
    this._attachments.complete();
    this._backdropClick.complete();
    this._keydownEvents.complete();
    this._outsidePointerEvents.complete();
    this._outsideClickDispatcher.remove(this);
    this._host?.remove();
    this._afterNextRenderRef?.destroy();
    this._previousHostParent = this._pane = this._host = this._backdropRef = null!;

    if (isAttached) {
      this._detachments.next();
    }

    this._detachments.complete();
    this._completeDetachContent();
    this._disposed = true;
  }

  /** Whether the overlay has attached content. */
  hasAttached(): boolean {