Updating trunk VERSION from 2139.0 to 2140.0
[chromium-blink-merge.git] / ui / gfx / screen_win.h
blob6ca5601b4750fafb071d7de8c976d15d95f95fcf
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.
5 #ifndef UI_GFX_SCREEN_WIN_H_
6 #define UI_GFX_SCREEN_WIN_H_
8 #include "base/compiler_specific.h"
9 #include "ui/gfx/display_change_notifier.h"
10 #include "ui/gfx/gfx_export.h"
11 #include "ui/gfx/screen.h"
12 #include "ui/gfx/win/singleton_hwnd.h"
14 namespace gfx {
16 class GFX_EXPORT ScreenWin : public Screen,
17 public SingletonHwnd::Observer {
18 public:
19 ScreenWin();
20 virtual ~ScreenWin();
22 protected:
23 // Overridden from gfx::Screen:
24 virtual bool IsDIPEnabled() OVERRIDE;
25 virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
26 virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE;
27 virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
28 OVERRIDE;
29 virtual int GetNumDisplays() const OVERRIDE;
30 virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE;
31 virtual gfx::Display GetDisplayNearestWindow(
32 gfx::NativeView window) const OVERRIDE;
33 virtual gfx::Display GetDisplayNearestPoint(
34 const gfx::Point& point) const OVERRIDE;
35 virtual gfx::Display GetDisplayMatching(
36 const gfx::Rect& match_rect) const OVERRIDE;
37 virtual gfx::Display GetPrimaryDisplay() const OVERRIDE;
38 virtual void AddObserver(DisplayObserver* observer) OVERRIDE;
39 virtual void RemoveObserver(DisplayObserver* observer) OVERRIDE;
41 // Overriden from gfx::SingletonHwnd::Observer.
42 virtual void OnWndProc(HWND hwnd,
43 UINT message,
44 WPARAM wparam,
45 LPARAM lparam) OVERRIDE;
47 // Returns the HWND associated with the NativeView.
48 virtual HWND GetHWNDFromNativeView(NativeView window) const;
50 // Returns the NativeView associated with the HWND.
51 virtual NativeWindow GetNativeWindowFromHWND(HWND hwnd) const;
53 private:
54 // Helper implementing the DisplayObserver handling.
55 gfx::DisplayChangeNotifier change_notifier_;
57 // Current list of displays.
58 std::vector<gfx::Display> displays_;
60 DISALLOW_COPY_AND_ASSIGN(ScreenWin);
63 } // namespace gfx
65 #endif // UI_GFX_SCREEN_WIN_H_