| // Copyright (c) 2012 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 UI_VIEWS_WIN_SCOPED_FULLSCREEN_VISIBILITY_H_ |
| #define UI_VIEWS_WIN_SCOPED_FULLSCREEN_VISIBILITY_H_ |
| |
| #include <windows.h> |
| |
| #include <map> |
| |
| #include "base/macros.h" |
| #include "ui/views/views_export.h" |
| |
| namespace views { |
| |
| // Scoping class that ensures a HWND remains hidden while it enters or leaves |
| // the fullscreen state. This reduces some flicker-jank that an application UI |
| // might suffer. |
| class VIEWS_EXPORT ScopedFullscreenVisibility { |
| public: |
| explicit ScopedFullscreenVisibility(HWND hwnd); |
| ~ScopedFullscreenVisibility(); |
| |
| // Returns true if |hwnd| is currently hidden due to instance(s) of this |
| // class. |
| static bool IsHiddenForFullscreen(HWND hwnd); |
| |
| private: |
| typedef std::map<HWND, int> FullscreenHWNDs; |
| |
| HWND hwnd_; |
| |
| static FullscreenHWNDs* full_screen_windows_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedFullscreenVisibility); |
| }; |
| |
| } // namespace views |
| |
| #endif // UI_VIEWS_WIN_SCOPED_FULLSCREEN_VISIBILITY_H_ |