1 // Copyright (c) 2012 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_APP_LIST_MODEL_OBSERVER_H_ 6 #define UI_APP_LIST_APP_LIST_MODEL_OBSERVER_H_ 7 8 #include "ui/app_list/app_list_export.h" 9 10 namespace app_list { 11 12 class APP_LIST_EXPORT AppListModelObserver { 13 public: 14 // Invoked when AppListModel's status has changed. 15 virtual void OnAppListModelStatusChanged() {} 16 17 protected: 18 virtual ~AppListModelObserver() {} 19 }; 20 21 } // namespace app_list 22 23 #endif // UI_APP_LIST_APP_LIST_MODEL_OBSERVER_H_ 24