1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_ 6#define UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_ 7 8namespace views { 9class Widget; 10} 11 12namespace app_list { 13 14class AppListViewObserver { 15 public: 16 virtual void OnActivationChanged(views::Widget* widget, bool active) = 0; 17 18 protected: 19 virtual ~AppListViewObserver() {} 20}; 21 22} // namespace app_list 23 24#endif // UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_ 25