Function _menuClosingActions

src/material/menu/menu-trigger-base.ts:454–465

Returns a stream that emits whenever an action that should close the menu occurs.

()

  /** Returns a stream that emits whenever an action that should close the menu occurs. */
  private _menuClosingActions() {
    const outsideClicks = this._getOutsideClickStream(this._overlayRef!);
    const detachments = this._overlayRef!.detachments();
    const parentClose = this._parentMaterialMenu ? this._parentMaterialMenu.closed : observableOf();
    const hover = this._parentMaterialMenu
      ? this._parentMaterialMenu
          ._hovered()
          .pipe(filter(active => this._menuOpen && active !== this._menuItemInstance))
      : observableOf();

    return merge(outsideClicks, parentClose as Observable<MenuCloseReason>, hover, detachments);
  }

  /** Gets the portal that should be attached to the overlay. */
  private _getPortal(menu: MatMenuPanel): TemplatePortal {