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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
// 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_MANAGER_H_
#define ASH_DISPLAY_DISPLAY_MANAGER_H_
#include <string>
#include <vector>
#include "ash/ash_export.h"
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "ui/aura/root_window_observer.h"
#include "ui/aura/window.h"
namespace gfx {
class Display;
class Insets;
class Rect;
}
namespace ash {
class AcceleratorControllerTest;
namespace test {
class DisplayManagerTestApi;
class SystemGestureEventFilterTest;
}
namespace internal {
// DisplayManager maintains the current display configurations,
// and notifies observers when configuration changes.
// This is exported for unittest.
//
// TODO(oshima): gfx::Screen needs to return translated coordinates
// if the root window is translated. crbug.com/119268.
class ASH_EXPORT DisplayManager : public aura::RootWindowObserver {
public:
DisplayManager();
virtual ~DisplayManager();
// Used to emulate display change when run in a desktop environment instead
// of on a device.
static void CycleDisplay();
static void ToggleDisplayScale();
// When set to true, the MonitorManager calls OnDisplayBoundsChanged
// even if the display's bounds didn't change. Used to swap primary
// display.
void set_force_bounds_changed(bool force_bounds_changed) {
force_bounds_changed_ = force_bounds_changed;
}
// True if the given |display| is currently connected.
bool IsActiveDisplay(const gfx::Display& display) const;
// True if there is an internal display.
bool HasInternalDisplay() const;
bool IsInternalDisplayId(int64 id) const;
bool UpdateWorkAreaOfDisplayNearestWindow(const aura::Window* window,
const gfx::Insets& insets);
// Returns display for given |id|;
const gfx::Display& GetDisplayForId(int64 id) const;
// Finds the display that contains |point| in screeen coordinates.
// Returns invalid display if there is no display that can satisfy
// the condition.
const gfx::Display& FindDisplayContainingPoint(
const gfx::Point& point_in_screen) const;
// Registers the overscan insets for the display of the specified ID. Note
// that the insets size should be specified in DIP size. It also triggers the
// display's bounds change.
void SetOverscanInsets(int64 display_id, const gfx::Insets& insets_in_dip);
// Returns the current overscan insets for the specified |display_id|.
// Returns an empty insets (0, 0, 0, 0) if no insets are specified for
// the display.
gfx::Insets GetOverscanInsets(int64 display_id) const;
// Called when display configuration has changed. The new display
// configurations is passed as a vector of Display object, which
// contains each display's new infomration.
void OnNativeDisplaysChanged(const std::vector<gfx::Display>& displays);
// Updates the internal display data and notifies observers about the changes.
void UpdateDisplays(const std::vector<gfx::Display>& displays);
// Create a root window for given |display|.
aura::RootWindow* CreateRootWindowForDisplay(const gfx::Display& display);
// Obsoleted: Do not use in new code.
// Returns the display at |index|. The display at 0 is
// no longer considered "primary".
gfx::Display* GetDisplayAt(size_t index);
size_t GetNumDisplays() const;
// Returns the display object nearest given |window|.
const gfx::Display& GetDisplayNearestPoint(
const gfx::Point& point) const;
// Returns the display object nearest given |point|.
const gfx::Display& GetDisplayNearestWindow(
const aura::Window* window) const;
// Returns the display that most closely intersects |match_rect|.
const gfx::Display& GetDisplayMatching(
const gfx::Rect& match_rect)const;
// Returns the human-readable name for the display specified by |display|.
std::string GetDisplayNameFor(const gfx::Display& display);
// RootWindowObserver overrides:
virtual void OnRootWindowResized(const aura::RootWindow* root,
const gfx::Size& new_size) OVERRIDE;
private:
FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, ConvertPoint);
FRIEND_TEST_ALL_PREFIXES(DisplayManagerTest, TestNativeDisplaysChanged);
FRIEND_TEST_ALL_PREFIXES(DisplayManagerTest,
NativeDisplaysChangedAfterPrimaryChange);
friend class ash::AcceleratorControllerTest;
friend class test::DisplayManagerTestApi;
friend class DisplayManagerTest;
friend class test::SystemGestureEventFilterTest;
typedef std::vector<gfx::Display> DisplayList;
// Metadata for each display.
struct DisplayInfo {
// The cached name of the display.
std::string name;
// The original bounds_in_pixel for the display. This can be different from
// the current one in case of overscan insets.
gfx::Rect original_bounds_in_pixel;
// The overscan insets for the display.
gfx::Insets overscan_insets_in_dip;
};
void Init();
void CycleDisplayImpl();
void ScaleDisplayImpl();
gfx::Display& FindDisplayForRootWindow(const aura::RootWindow* root);
gfx::Display& FindDisplayForId(int64 id);
// Refer to |aura::DisplayManager::CreateDisplayFromSpec| API for
// the format of |spec|.
void AddDisplayFromSpec(const std::string& spec);
// Set the 1st display as an internal display and returns the display Id for
// the internal display.
int64 SetFirstDisplayAsInternalDisplayForTest();
// Checks if the mouse pointer is on one of displays, and moves to
// the center of the nearest display if it's outside of all displays.
void EnsurePointerInDisplays();
// Updates |display_names_| by calling platform-dependent functions.
void RefreshDisplayNames();
// Update the display's id in the |display_list| to match the ones
// stored in this display manager's |displays_|. This is used to
// emulate display change behavior during the test byn creating the
// display list with the same display ids but with different bounds
void SetDisplayIdsForTest(DisplayList* display_list) const;
DisplayList displays_;
int64 internal_display_id_;
// An internal display cache used when the internal display is disconnectd.
scoped_ptr<gfx::Display> internal_display_;
bool force_bounds_changed_;
// The mapping from the display ID to its internal data.
std::map<int64, DisplayInfo> display_info_;
DISALLOW_COPY_AND_ASSIGN(DisplayManager);
};
extern const aura::WindowProperty<int64>* const kDisplayIdKey;
} // namespace internal
} // namespace ash
#endif // ASH_DISPLAY_DISPLAY_MANAGER_H_
|
