1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
// 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 ASH_DISPLAY_DISPLAY_CONTROLLER_H_
#define ASH_DISPLAY_DISPLAY_CONTROLLER_H_
#include <map>
#include <vector>
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/aura/display_observer.h"
#include "ui/aura/display_manager.h"
namespace aura {
class Display;
class RootWindow;
}
namespace ash {
namespace internal {
class RootWindowController;
// DisplayController owns and maintains RootWindows for each attached
// display, keeping them in sync with display configuration changes.
// TODO(oshima): Rename DisplayXXX to DisplayXXX.
class ASH_EXPORT DisplayController : public aura::DisplayObserver {
public:
// Layout options where the secondary display should be positioned.
enum SecondaryDisplayLayout {
TOP,
RIGHT,
BOTTOM,
LEFT
};
DisplayController();
virtual ~DisplayController();
// Initializes primary display.
void InitPrimaryDisplay();
// Initialize secondary display. This is separated because in non
// extended desktop mode, this creates background widgets, which
// requires other controllers.
void InitSecondaryDisplays();
// Returns the root window for primary display.
aura::RootWindow* GetPrimaryRootWindow();
// Returns the root window for |display_id|.
aura::RootWindow* GetRootWindowForDisplayId(int id);
// Closes all child windows in the all root windows.
void CloseChildWindows();
// Returns all root windows. In non extended desktop mode, this
// returns the primary root window only.
std::vector<aura::RootWindow*> GetAllRootWindows();
// Returns all oot window controllers. In non extended desktop
// mode, this return a RootWindowController for the primary root window only.
std::vector<internal::RootWindowController*> GetAllRootWindowControllers();
SecondaryDisplayLayout secondary_display_layout() const {
return secondary_display_layout_;
}
void SetSecondaryDisplayLayout(SecondaryDisplayLayout layout);
// Warps the mouse cursor to an alternate root window when the
// |location_in_root|, which is the location of the mouse cursor,
// hits or exceeds the edge of the |root_window| and the mouse cursor
// is considered to be in an alternate display. Returns true if
// the cursor was moved.
bool WarpMouseCursorIfNecessary(aura::Window* root_window,
const gfx::Point& location_in_root);
// aura::DisplayObserver overrides:
virtual void OnDisplayBoundsChanged(
const gfx::Display& display) OVERRIDE;
virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE;
virtual void OnDisplayRemoved(const gfx::Display& display) OVERRIDE;
// Is extended desktop enabled?
static bool IsExtendedDesktopEnabled();
// Change the extended desktop mode. Used for testing.
static void SetExtendedDesktopEnabled(bool enabled);
// Is virtual screen coordinates enabled?
static bool IsVirtualScreenCoordinatesEnabled();
// Turns on/off the virtual screen coordinates.
static void SetVirtualScreenCoordinatesEnabled(bool enabled);
private:
// Creates a root window for |display| and stores it in the |root_windows_|
// map.
aura::RootWindow* AddRootWindowForDisplay(const gfx::Display& display);
void UpdateDisplayBoundsForLayout();
std::map<int, aura::RootWindow*> root_windows_;
SecondaryDisplayLayout secondary_display_layout_;
DISALLOW_COPY_AND_ASSIGN(DisplayController);
};
} // namespace internal
} // namespace ash
#endif // ASH_DISPLAY_DISPLAY_CONTROLLER_H_
|
