chrome/browser/ui/views/bookmarks/bookmark_bar_view_observer.h

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_OBSERVER_H_
#define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_OBSERVER_H_

class BookmarkBarViewObserver {
 public:
  // Called when the BookmarkBarView's visibility is directly toggled.  Not
  // called when the visibility changes due to e.g. a parent being made visible.
  virtual void OnBookmarkBarVisibilityChanged() {}

  // Called when the user drags over a folder, causing a menu to appear (into
  // which bookmarks can be dropped).
  virtual void OnDropMenuShown() {}

 protected:
  ~BookmarkBarViewObserver() {}
};

#endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_VIEW_OBSERVER_H_