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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ | 5 #ifndef ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ |
6 #define ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ | 6 #define ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "ash/ash_export.h" | 11 #include "ash/ash_export.h" |
12 #include "ash/common/wm/wm_window_observer.h" | 12 #include "ash/common/wm_window_observer.h" |
13 #include "base/macros.h" | 13 #include "base/macros.h" |
14 #include "base/timer/timer.h" | 14 #include "base/timer/timer.h" |
15 #include "ui/gfx/geometry/rect.h" | 15 #include "ui/gfx/geometry/rect.h" |
16 #include "ui/views/mouse_watcher.h" | 16 #include "ui/views/mouse_watcher.h" |
17 | 17 |
18 namespace views { | 18 namespace views { |
19 class Widget; | 19 class Widget; |
20 } | 20 } |
21 | 21 |
22 namespace ash { | 22 namespace ash { |
23 class MultiWindowResizeControllerTest; | 23 class MultiWindowResizeControllerTest; |
24 class WorkspaceWindowResizer; | 24 class WorkspaceWindowResizer; |
25 | 25 |
26 // Two directions resizes happen in. | 26 // Two directions resizes happen in. |
27 enum Direction { | 27 enum Direction { |
28 TOP_BOTTOM, | 28 TOP_BOTTOM, |
29 LEFT_RIGHT, | 29 LEFT_RIGHT, |
30 }; | 30 }; |
31 | 31 |
32 // MultiWindowResizeController is responsible for determining and showing a | 32 // MultiWindowResizeController is responsible for determining and showing a |
33 // widget that allows resizing multiple windows at the same time. | 33 // widget that allows resizing multiple windows at the same time. |
34 // MultiWindowResizeController is driven by WorkspaceEventFilter. | 34 // MultiWindowResizeController is driven by WorkspaceEventFilter. |
35 class ASH_EXPORT MultiWindowResizeController | 35 class ASH_EXPORT MultiWindowResizeController |
36 : public views::MouseWatcherListener, | 36 : public views::MouseWatcherListener, |
37 public wm::WmWindowObserver { | 37 public WmWindowObserver { |
38 public: | 38 public: |
39 MultiWindowResizeController(); | 39 MultiWindowResizeController(); |
40 ~MultiWindowResizeController() override; | 40 ~MultiWindowResizeController() override; |
41 | 41 |
42 // If necessary, shows the resize widget. |window| is the window the mouse | 42 // If necessary, shows the resize widget. |window| is the window the mouse |
43 // is over, |component| the edge and |point| the location of the mouse. | 43 // is over, |component| the edge and |point| the location of the mouse. |
44 void Show(wm::WmWindow* window, int component, const gfx::Point& point); | 44 void Show(WmWindow* window, int component, const gfx::Point& point); |
45 | 45 |
46 // Hides the resize widget. | 46 // Hides the resize widget. |
47 void Hide(); | 47 void Hide(); |
48 | 48 |
49 // MouseWatcherListenre overrides: | 49 // MouseWatcherListenre overrides: |
50 void MouseMovedOutOfHost() override; | 50 void MouseMovedOutOfHost() override; |
51 | 51 |
52 // WindowObserver overrides: | 52 // WindowObserver overrides: |
53 void OnWindowDestroying(wm::WmWindow* window) override; | 53 void OnWindowDestroying(WmWindow* window) override; |
54 | 54 |
55 private: | 55 private: |
56 friend class MultiWindowResizeControllerTest; | 56 friend class MultiWindowResizeControllerTest; |
57 | 57 |
58 // Used to track the two resizable windows and direction. | 58 // Used to track the two resizable windows and direction. |
59 struct ResizeWindows { | 59 struct ResizeWindows { |
60 ResizeWindows(); | 60 ResizeWindows(); |
61 ResizeWindows(const ResizeWindows& other); | 61 ResizeWindows(const ResizeWindows& other); |
62 ~ResizeWindows(); | 62 ~ResizeWindows(); |
63 | 63 |
64 // Returns true if |other| equals this ResizeWindows. This does *not* | 64 // Returns true if |other| equals this ResizeWindows. This does *not* |
65 // consider the windows in |other_windows|. | 65 // consider the windows in |other_windows|. |
66 bool Equals(const ResizeWindows& other) const; | 66 bool Equals(const ResizeWindows& other) const; |
67 | 67 |
68 // Returns true if this ResizeWindows is valid. | 68 // Returns true if this ResizeWindows is valid. |
69 bool is_valid() const { return window1 && window2; } | 69 bool is_valid() const { return window1 && window2; } |
70 | 70 |
71 // The left/top window to resize. | 71 // The left/top window to resize. |
72 wm::WmWindow* window1; | 72 WmWindow* window1; |
73 | 73 |
74 // Other window to resize. | 74 // Other window to resize. |
75 wm::WmWindow* window2; | 75 WmWindow* window2; |
76 | 76 |
77 // Direction | 77 // Direction |
78 Direction direction; | 78 Direction direction; |
79 | 79 |
80 // Windows after |window2| that are to be resized. Determined at the time | 80 // Windows after |window2| that are to be resized. Determined at the time |
81 // the resize starts. | 81 // the resize starts. |
82 std::vector<wm::WmWindow*> other_windows; | 82 std::vector<WmWindow*> other_windows; |
83 }; | 83 }; |
84 | 84 |
85 class ResizeMouseWatcherHost; | 85 class ResizeMouseWatcherHost; |
86 class ResizeView; | 86 class ResizeView; |
87 | 87 |
88 void CreateMouseWatcher(); | 88 void CreateMouseWatcher(); |
89 | 89 |
90 // Returns a ResizeWindows based on the specified arguments. Use is_valid() | 90 // Returns a ResizeWindows based on the specified arguments. Use is_valid() |
91 // to test if the return value is a valid multi window resize location. | 91 // to test if the return value is a valid multi window resize location. |
92 ResizeWindows DetermineWindows(wm::WmWindow* window, | 92 ResizeWindows DetermineWindows(WmWindow* window, |
93 int window_component, | 93 int window_component, |
94 const gfx::Point& point) const; | 94 const gfx::Point& point) const; |
95 | 95 |
96 // Variant of DetermineWindows() that uses the current location of the mouse | 96 // Variant of DetermineWindows() that uses the current location of the mouse |
97 // to determine the resize windows. | 97 // to determine the resize windows. |
98 ResizeWindows DetermineWindowsFromScreenPoint(wm::WmWindow* window) const; | 98 ResizeWindows DetermineWindowsFromScreenPoint(WmWindow* window) const; |
99 | 99 |
100 // Finds a window by edge (one of the constants HitTestCompat. | 100 // Finds a window by edge (one of the constants HitTestCompat. |
101 wm::WmWindow* FindWindowByEdge(wm::WmWindow* window_to_ignore, | 101 WmWindow* FindWindowByEdge(WmWindow* window_to_ignore, |
102 int edge_want, | 102 int edge_want, |
103 int x_in_parent, | 103 int x_in_parent, |
104 int y_in_parent) const; | 104 int y_in_parent) const; |
105 | 105 |
106 // Returns the first window touching |window|. | 106 // Returns the first window touching |window|. |
107 wm::WmWindow* FindWindowTouching(wm::WmWindow* window, | 107 WmWindow* FindWindowTouching(WmWindow* window, Direction direction) const; |
108 Direction direction) const; | |
109 | 108 |
110 // Places any windows touching |start| into |others|. | 109 // Places any windows touching |start| into |others|. |
111 void FindWindowsTouching(wm::WmWindow* start, | 110 void FindWindowsTouching(WmWindow* start, |
112 Direction direction, | 111 Direction direction, |
113 std::vector<wm::WmWindow*>* others) const; | 112 std::vector<WmWindow*>* others) const; |
114 | 113 |
115 // Shows the resizer if the mouse is still at a valid location. This is called | 114 // Shows the resizer if the mouse is still at a valid location. This is called |
116 // from the |show_timer_|. | 115 // from the |show_timer_|. |
117 void ShowIfValidMouseLocation(); | 116 void ShowIfValidMouseLocation(); |
118 | 117 |
119 // Shows the widget immediately. | 118 // Shows the widget immediately. |
120 void ShowNow(); | 119 void ShowNow(); |
121 | 120 |
122 // Returns true if the widget is showing. | 121 // Returns true if the widget is showing. |
123 bool IsShowing() const; | 122 bool IsShowing() const; |
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139 const gfx::Point& location_in_parent) const; | 138 const gfx::Point& location_in_parent) const; |
140 | 139 |
141 // Returns true if |location_in_screen| is over the resize widget. | 140 // Returns true if |location_in_screen| is over the resize widget. |
142 bool IsOverResizeWidget(const gfx::Point& location_in_screen) const; | 141 bool IsOverResizeWidget(const gfx::Point& location_in_screen) const; |
143 | 142 |
144 // Returns true if |location_in_screen| is over the resize windows | 143 // Returns true if |location_in_screen| is over the resize windows |
145 // (or the resize widget itself). | 144 // (or the resize widget itself). |
146 bool IsOverWindows(const gfx::Point& location_in_screen) const; | 145 bool IsOverWindows(const gfx::Point& location_in_screen) const; |
147 | 146 |
148 // Returns true if |location_in_screen| is over |component| in |window|. | 147 // Returns true if |location_in_screen| is over |component| in |window|. |
149 bool IsOverComponent(wm::WmWindow* window, | 148 bool IsOverComponent(WmWindow* window, |
150 const gfx::Point& location_in_screen, | 149 const gfx::Point& location_in_screen, |
151 int component) const; | 150 int component) const; |
152 | 151 |
153 // Windows and direction to resize. | 152 // Windows and direction to resize. |
154 ResizeWindows windows_; | 153 ResizeWindows windows_; |
155 | 154 |
156 // Timer used before showing. | 155 // Timer used before showing. |
157 base::OneShotTimer show_timer_; | 156 base::OneShotTimer show_timer_; |
158 | 157 |
159 std::unique_ptr<views::Widget> resize_widget_; | 158 std::unique_ptr<views::Widget> resize_widget_; |
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171 // |resize_widget_| is non-NULL (ie the widget is showing) we ignore calls | 170 // |resize_widget_| is non-NULL (ie the widget is showing) we ignore calls |
172 // to Show(). | 171 // to Show(). |
173 std::unique_ptr<views::MouseWatcher> mouse_watcher_; | 172 std::unique_ptr<views::MouseWatcher> mouse_watcher_; |
174 | 173 |
175 DISALLOW_COPY_AND_ASSIGN(MultiWindowResizeController); | 174 DISALLOW_COPY_AND_ASSIGN(MultiWindowResizeController); |
176 }; | 175 }; |
177 | 176 |
178 } // namespace ash | 177 } // namespace ash |
179 | 178 |
180 #endif // ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ | 179 #endif // ASH_COMMON_WM_WORKSPACE_MULTI_WINDOW_RESIZE_CONTROLLER_H_ |
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