Class MatDialog

src/material/dialog/dialog.ts:58–238

 */
@Service()
export class MatDialog implements OnDestroy {
  private _defaultOptions = inject<MatDialogConfig>(MAT_DIALOG_DEFAULT_OPTIONS, {optional: true});
  private _scrollStrategy = inject(MAT_DIALOG_SCROLL_STRATEGY);
  private _parentDialog = inject(MatDialog, {optional: true, skipSelf: true});
  private _idGenerator = inject(_IdGenerator);
  private _injector = inject(Injector);
  protected _dialog = inject(Dialog);
  private _animationsDisabled = _animationsDisabled();

  private readonly _openDialogsAtThisLevel: MatDialogRef<any>[] = [];
  private readonly _afterAllClosedAtThisLevel = new Subject<void>();
  private readonly _afterOpenedAtThisLevel = new Subject<MatDialogRef<any>>();
  protected dialogConfigClass = MatDialogConfig;

  private readonly _dialogRefConstructor: Type<MatDialogRef<any>>;
  private readonly _dialogContainerType: Type<MatDialogContainer>;
  private readonly _dialogDataToken: InjectionToken<any>;

  /** Keeps track of the currently-open dialogs. */
  get openDialogs(): MatDialogRef<any>[] {
    return this._parentDialog ? this._parentDialog.openDialogs : this._openDialogsAtThisLevel;
  }

  /** Stream that emits when a dialog has been opened. */
  get afterOpened(): Subject<MatDialogRef<any>> {
    return this._parentDialog ? this._parentDialog.afterOpened : this._afterOpenedAtThisLevel;
  }

  private _getAfterAllClosed(): Subject<void> {
    const parent = this._parentDialog;
    return parent ? parent._getAfterAllClosed() : this._afterAllClosedAtThisLevel;
  }

  /**
   * Stream that emits when all open dialog have finished closing.
   * Will emit on subscribe if there are no open dialogs to begin with.
   */
  readonly afterAllClosed: Observable<void> = defer(() =>
    this.openDialogs.length
      ? this._getAfterAllClosed()
      : this._getAfterAllClosed().pipe(startWith(undefined)),
  ) as Observable<any>;

  constructor() {
    this._dialogRefConstructor = MatDialogRef;
    this._dialogContainerType = MatDialogContainer;
    this._dialogDataToken = MAT_DIALOG_DATA;
  }

  /**
   * Opens a modal dialog containing the given component.
   * @param component Type of the component to load into the dialog.
   * @param config Extra configuration options.
   * @returns Reference to the newly-opened dialog.
   */
  open<T, D = any, R = any>(
    component: ComponentType<T>,
    config?: MatDialogConfig<D>,