OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2016 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_GFX_WIN_DISPLAY_MANAGER_H_ | |
6 #define UI_GFX_WIN_DISPLAY_MANAGER_H_ | |
7 | |
8 #include <windows.h> | |
9 #include <memory> | |
10 #include <vector> | |
11 | |
12 #include "base/macros.h" | |
13 #include "base/memory/singleton.h" | |
14 #include "base/observer_list.h" | |
15 #include "ui/gfx/display.h" | |
16 #include "ui/gfx/gfx_export.h" | |
17 | |
18 namespace gfx { | |
19 | |
20 class Point; | |
21 class Rect; | |
22 class SingletonHwndObserver; | |
23 | |
24 namespace win { | |
25 | |
26 class DisplayManagerObserver; | |
27 class DisplayInfo; | |
28 class ScreenWinDisplay; | |
29 | |
30 // Holds all of the ScreenWinDisplays available in the system. | |
31 // Normally, this means there is a 1:1 correspondence between ScreenWinDisplays | |
32 // and HMONITORS. However, in tests, we can't depend on this so we allow | |
33 // overrides of system API functions via virtual calls. | |
34 class GFX_EXPORT DisplayManager { | |
35 public: | |
36 static DisplayManager* GetInstance(); | |
37 | |
38 virtual void Initialize(); | |
39 | |
40 void AddObserver(DisplayManagerObserver* observer); | |
41 void RemoveObserver(DisplayManagerObserver* observer); | |
42 | |
43 const std::vector<ScreenWinDisplay>& GetScreenWinDisplays(); | |
oshima
2016/01/28 18:32:05
maybe you should have new line here and
robliao
2016/01/29 01:44:41
Done.
| |
44 ScreenWinDisplay GetScreenWinDisplayNearestHWND(HWND hwnd) const; | |
45 ScreenWinDisplay GetScreenWinDisplayNearestScreenRect( | |
46 const Rect& screen_rect) const; | |
47 ScreenWinDisplay GetScreenWinDisplayNearestScreenPoint( | |
48 const Point& screen_point) const; | |
49 ScreenWinDisplay GetPrimaryScreenWinDisplay() const; | |
oshima
2016/01/28 18:32:04
document this
robliao
2016/01/29 01:44:41
Done.
| |
50 | |
51 // For Unit Tests. | |
oshima
2016/01/28 18:32:05
methods for test should either be named XxxForTest
robliao
2016/01/29 01:44:41
These are called by production code, but they are
| |
52 virtual MONITORINFOEX MonitorInfoFromScreenPoint( | |
53 const gfx::Point& screen_point) const; | |
54 virtual MONITORINFOEX MonitorInfoFromScreenRect(const gfx::Rect& screen_rect) | |
55 const; | |
56 virtual MONITORINFOEX MonitorInfoFromWindow(HWND hwnd, DWORD default_options) | |
57 const; | |
58 virtual HWND GetRootWindow(HWND hwnd) const; | |
59 | |
60 protected: | |
61 friend std::default_delete<DisplayManager>; | |
62 | |
63 static void SetInstanceForTesting(scoped_ptr<DisplayManager> display_manager); | |
64 | |
65 DisplayManager(); | |
66 virtual ~DisplayManager(); | |
67 | |
68 void UpdateFromDisplayInfos(const std::vector<DisplayInfo>& display_infos); | |
69 | |
70 private: | |
71 ScreenWinDisplay GetScreenWinDisplay(const MONITORINFOEX& monitor_info) const; | |
72 void WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam); | |
73 | |
74 scoped_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_; | |
75 base::ObserverList<DisplayManagerObserver, true> observer_list_; | |
76 std::vector<ScreenWinDisplay> screen_win_displays_; | |
77 | |
78 DISALLOW_COPY_AND_ASSIGN(DisplayManager); | |
79 }; | |
80 | |
81 } // namespace win | |
82 } // namespace gfx | |
83 | |
84 #endif // UI_GFX_WIN_DISPLAY_MANAGER_H_ | |
OLD | NEW |