Method _hovered

src/material/menu/menu.ts:336–343

Stream that emits whenever the hovered menu item changes.

()

  /** Stream that emits whenever the hovered menu item changes. */
  _hovered(): Observable<MatMenuItem> {
    // Coerce the `changes` property because Angular types it as `Observable<any>`
    const itemChanges = this._directDescendantItems.changes as Observable<QueryList<MatMenuItem>>;
    return itemChanges.pipe(
      startWith(this._directDescendantItems),
      switchMap(items => merge(...items.map((item: MatMenuItem) => item._hovered))),
    ) as Observable<MatMenuItem>;
  }

  /*
   * Registers a menu item with the menu.