1 // Copyright 2014 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 ATHENA_SCREEN_PUBLIC_WINDOW_MANAGER_OBSERVER_H_ 6 #define ATHENA_SCREEN_PUBLIC_WINDOW_MANAGER_OBSERVER_H_ 7 8 #include "athena/athena_export.h" 9 10 namespace athena { 11 12 class ATHENA_EXPORT WindowManagerObserver { 13 public: 14 virtual ~WindowManagerObserver() {} 15 16 // Called immediately before the overview mode is displayed. 17 virtual void OnOverviewModeEnter() = 0; 18 19 // Called immediately after going out of the overview mode. 20 virtual void OnOverviewModeExit() = 0; 21 22 // Called immediately before the split view mode is activated. 23 virtual void OnSplitViewModeEnter() = 0; 24 25 // Called immediately after going out of the split view mode. 26 virtual void OnSplitViewModeExit() = 0; 27 }; 28 29 } // namespace athena 30 31 #endif // ATHENA_SCREEN_PUBLIC_WINDOW_MANAGER_OBSERVER_H_ 32
