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_BASE_WORK_AREA_WATCHER_OBSERVER_H_ 6 #define UI_BASE_WORK_AREA_WATCHER_OBSERVER_H_ 7 8 #include "ui/base/ui_base_export.h" 9 10 namespace ui { 11 12 // This interface should be implemented by classes that want to be notified 13 // when the work area has changed due to something like screen resolution or 14 // taskbar changes. 15 class UI_BASE_EXPORT WorkAreaWatcherObserver { 16 public: 17 virtual void WorkAreaChanged() = 0; 18 19 protected: ~WorkAreaWatcherObserver()20 virtual ~WorkAreaWatcherObserver() {} 21 }; 22 23 } // namespace ui 24 25 #endif // UI_BASE_WORK_AREA_WATCHER_OBSERVER_H_ 26