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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ | 5 #ifndef COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ |
6 #define COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ | 6 #define COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
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29 // Handles dispatching events to the right location as well as updating focus. | 29 // Handles dispatching events to the right location as well as updating focus. |
30 class EventDispatcher : public ServerWindowObserver { | 30 class EventDispatcher : public ServerWindowObserver { |
31 public: | 31 public: |
32 explicit EventDispatcher(EventDispatcherDelegate* delegate); | 32 explicit EventDispatcher(EventDispatcherDelegate* delegate); |
33 ~EventDispatcher() override; | 33 ~EventDispatcher() override; |
34 | 34 |
35 void set_root(ServerWindow* root) { root_ = root; } | 35 void set_root(ServerWindow* root) { root_ = root; } |
36 | 36 |
37 void set_surface_id(cc::SurfaceId surface_id) { surface_id_ = surface_id; } | 37 void set_surface_id(cc::SurfaceId surface_id) { surface_id_ = surface_id; } |
38 | 38 |
| 39 // |capture_window_| will receive all input. See window_tree.mojom for |
| 40 // details. |
| 41 ServerWindow* capture_window() { return capture_window_; } |
| 42 const ServerWindow* capture_window() const { return capture_window_; } |
| 43 void SetCaptureWindow(ServerWindow* capture_window, bool in_nonclient_area); |
| 44 |
39 // Retrieves the ServerWindow of the last mouse move. | 45 // Retrieves the ServerWindow of the last mouse move. |
40 ServerWindow* mouse_cursor_source_window() const { | 46 ServerWindow* mouse_cursor_source_window() const { |
41 return mouse_cursor_source_window_; | 47 return mouse_cursor_source_window_; |
42 } | 48 } |
43 | 49 |
44 // Possibly updates the cursor. If we aren't in an implicit capture, we take | 50 // Possibly updates the cursor. If we aren't in an implicit capture, we take |
45 // the last known location of the mouse pointer, and look for the | 51 // the last known location of the mouse pointer, and look for the |
46 // ServerWindow* under it. | 52 // ServerWindow* under it. |
47 void UpdateCursorProviderByLastKnownLocation(); | 53 void UpdateCursorProviderByLastKnownLocation(); |
48 | 54 |
49 // Adds an accelerator with the given id and event-matcher. If an accelerator | 55 // Adds an accelerator with the given id and event-matcher. If an accelerator |
50 // already exists with the same id or the same matcher, then the accelerator | 56 // already exists with the same id or the same matcher, then the accelerator |
51 // is not added. Returns whether adding the accelerator was successful or not. | 57 // is not added. Returns whether adding the accelerator was successful or not. |
52 bool AddAccelerator(uint32_t id, mojom::EventMatcherPtr event_matcher); | 58 bool AddAccelerator(uint32_t id, mojom::EventMatcherPtr event_matcher); |
53 void RemoveAccelerator(uint32_t id); | 59 void RemoveAccelerator(uint32_t id); |
54 | 60 |
55 // Processes the supplied event, informing the delegate as approriate. This | 61 // Processes the supplied event, informing the delegate as approriate. This |
56 // may result in generating any number of events. | 62 // may result in generating any number of events. |
57 void ProcessEvent(mojom::EventPtr event); | 63 void ProcessEvent(mojom::EventPtr event); |
58 | 64 |
59 private: | 65 private: |
| 66 friend class EventDispatcherTest; |
| 67 |
60 // Keeps track of state associated with an active pointer. | 68 // Keeps track of state associated with an active pointer. |
61 struct PointerTarget { | 69 struct PointerTarget { |
62 PointerTarget() | 70 PointerTarget() |
63 : window(nullptr), in_nonclient_area(false), is_pointer_down(false) {} | 71 : window(nullptr), in_nonclient_area(false), is_pointer_down(false) {} |
64 | 72 |
65 // NOTE: this is set to null if the window is destroyed before a | 73 // NOTE: this is set to null if the window is destroyed before a |
66 // corresponding release/cancel. | 74 // corresponding release/cancel. |
67 ServerWindow* window; | 75 ServerWindow* window; |
68 | 76 |
69 // Did the pointer event start in the non-client area. | 77 // Did the pointer event start in the non-client area. |
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128 | 136 |
129 // ServerWindowObserver: | 137 // ServerWindowObserver: |
130 void OnWillChangeWindowHierarchy(ServerWindow* window, | 138 void OnWillChangeWindowHierarchy(ServerWindow* window, |
131 ServerWindow* new_parent, | 139 ServerWindow* new_parent, |
132 ServerWindow* old_parent) override; | 140 ServerWindow* old_parent) override; |
133 void OnWindowVisibilityChanged(ServerWindow* window) override; | 141 void OnWindowVisibilityChanged(ServerWindow* window) override; |
134 void OnWindowDestroyed(ServerWindow* window) override; | 142 void OnWindowDestroyed(ServerWindow* window) override; |
135 | 143 |
136 EventDispatcherDelegate* delegate_; | 144 EventDispatcherDelegate* delegate_; |
137 ServerWindow* root_; | 145 ServerWindow* root_; |
| 146 ServerWindow* capture_window_; |
138 | 147 |
| 148 bool capture_window_in_nonclient_area_; |
139 bool mouse_button_down_; | 149 bool mouse_button_down_; |
140 ServerWindow* mouse_cursor_source_window_; | 150 ServerWindow* mouse_cursor_source_window_; |
141 | 151 |
142 // The on screen location of the mouse pointer. This can be outside the | 152 // The on screen location of the mouse pointer. This can be outside the |
143 // bounds of |mouse_cursor_source_window_|, which can capture the cursor. | 153 // bounds of |mouse_cursor_source_window_|, which can capture the cursor. |
144 gfx::Point mouse_pointer_last_location_; | 154 gfx::Point mouse_pointer_last_location_; |
145 | 155 |
146 cc::SurfaceId surface_id_; | 156 cc::SurfaceId surface_id_; |
147 | 157 |
148 using Entry = std::pair<uint32_t, EventMatcher>; | 158 using Entry = std::pair<uint32_t, EventMatcher>; |
149 std::map<uint32_t, EventMatcher> accelerators_; | 159 std::map<uint32_t, EventMatcher> accelerators_; |
150 | 160 |
151 using PointerIdToTargetMap = std::map<int32_t, PointerTarget>; | 161 using PointerIdToTargetMap = std::map<int32_t, PointerTarget>; |
152 // |pointer_targets_| contains the active pointers. For a mouse based pointer | 162 // |pointer_targets_| contains the active pointers. For a mouse based pointer |
153 // a PointerTarget is always active (and present in |pointer_targets_|). For | 163 // a PointerTarget is always active (and present in |pointer_targets_|). For |
154 // touch based pointers the pointer is active while down and removed on | 164 // touch based pointers the pointer is active while down and removed on |
155 // cancel or up. | 165 // cancel or up. |
156 PointerIdToTargetMap pointer_targets_; | 166 PointerIdToTargetMap pointer_targets_; |
157 | 167 |
158 DISALLOW_COPY_AND_ASSIGN(EventDispatcher); | 168 DISALLOW_COPY_AND_ASSIGN(EventDispatcher); |
159 }; | 169 }; |
160 | 170 |
161 } // namespace ws | 171 } // namespace ws |
162 } // namespace mus | 172 } // namespace mus |
163 | 173 |
164 #endif // COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ | 174 #endif // COMPONENTS_MUS_WS_EVENT_DISPATCHER_H_ |
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