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| 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 CHROME_BROWSER_UI_PANELS_DISPLAY_SETTINGS_PROVIDER_WIN_H_ | |
| 6 #define CHROME_BROWSER_UI_PANELS_DISPLAY_SETTINGS_PROVIDER_WIN_H_ | |
| 7 | |
| 8 #include "chrome/browser/ui/panels/display_settings_provider.h" | |
| 9 | |
| 10 #include <windows.h> | |
| 11 #include "base/compiler_specific.h" | |
| 12 #include "base/timer/timer.h" | |
| 13 | |
| 14 class DisplaySettingsProviderWin : public DisplaySettingsProvider { | |
| 15 public: | |
| 16 DisplaySettingsProviderWin(); | |
| 17 virtual ~DisplaySettingsProviderWin(); | |
| 18 | |
| 19 protected: | |
| 20 // Overridden from DisplaySettingsProvider: | |
| 21 virtual void OnDisplaySettingsChanged() OVERRIDE; | |
| 22 virtual bool IsAutoHidingDesktopBarEnabled( | |
| 23 DesktopBarAlignment alignment) OVERRIDE; | |
| 24 virtual int GetDesktopBarThickness( | |
| 25 DesktopBarAlignment alignment) const OVERRIDE; | |
| 26 virtual DesktopBarVisibility GetDesktopBarVisibility( | |
| 27 DesktopBarAlignment alignment) const OVERRIDE; | |
| 28 | |
| 29 int GetDesktopBarThicknessFromBounds( | |
| 30 DesktopBarAlignment alignment, const gfx::Rect& taskbar_bounds) const; | |
| 31 DesktopBarVisibility GetDesktopBarVisibilityFromBounds( | |
| 32 DesktopBarAlignment alignment, const gfx::Rect& taskbar_bounds) const; | |
| 33 | |
| 34 private: | |
| 35 struct Taskbar { | |
| 36 HWND window; | |
| 37 DesktopBarVisibility visibility; | |
| 38 int thickness; | |
| 39 }; | |
| 40 | |
| 41 // Callback to perform periodic check for taskbar changes. | |
| 42 void OnPollingTimer(); | |
| 43 | |
| 44 // Returns true if there is at least one auto-hiding taskbar found. | |
| 45 bool CheckTaskbars(bool notify_observer); | |
| 46 | |
| 47 gfx::Rect GetBounds(DesktopBarAlignment alignment) const; | |
| 48 | |
| 49 // Maximum number of taskbars we're interested in: bottom, left, and right. | |
| 50 static const int kMaxTaskbars = 3; | |
| 51 | |
| 52 HMONITOR monitor_; | |
| 53 Taskbar taskbars_[kMaxTaskbars]; | |
| 54 base::RepeatingTimer<DisplaySettingsProviderWin> polling_timer_; | |
| 55 | |
| 56 DISALLOW_COPY_AND_ASSIGN(DisplaySettingsProviderWin); | |
| 57 }; | |
| 58 | |
| 59 #endif // CHROME_BROWSER_UI_PANELS_DISPLAY_SETTINGS_PROVIDER_WIN_H_ | |
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