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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 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 CC_INPUT_INPUT_HANDLER_H_ | 5 #ifndef CC_INPUT_INPUT_HANDLER_H_ |
6 #define CC_INPUT_INPUT_HANDLER_H_ | 6 #define CC_INPUT_INPUT_HANDLER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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103 WHEEL, | 103 WHEEL, |
104 NON_BUBBLING_GESTURE | 104 NON_BUBBLING_GESTURE |
105 }; | 105 }; |
106 | 106 |
107 enum class TouchStartEventListenerType { | 107 enum class TouchStartEventListenerType { |
108 NO_HANDLER, | 108 NO_HANDLER, |
109 HANDLER, | 109 HANDLER, |
110 HANDLER_ON_SCROLLING_LAYER | 110 HANDLER_ON_SCROLLING_LAYER |
111 }; | 111 }; |
112 | 112 |
113 enum ScrollSourceInfo { | |
114 NONE, | |
115 SCROLLED_BY_TOUCH, | |
bokan
2017/03/09 17:31:03
Make this a bitfield. i.e. SCROLLED_BY_TOUCH = 0x1
sahel
2017/03/10 16:21:33
Done.
| |
116 SCROLLED_BY_WHEEL, | |
117 SCROLLED_BY_TOUCH_AND_WHEEL, | |
118 }; | |
119 | |
113 // Binds a client to this handler to receive notifications. Only one client | 120 // Binds a client to this handler to receive notifications. Only one client |
114 // can be bound to an InputHandler. The client must live at least until the | 121 // can be bound to an InputHandler. The client must live at least until the |
115 // handler calls WillShutdown() on the client. | 122 // handler calls WillShutdown() on the client. |
116 virtual void BindToClient(InputHandlerClient* client) = 0; | 123 virtual void BindToClient(InputHandlerClient* client) = 0; |
117 | 124 |
118 // Selects a layer to be scrolled using the |scroll_state| start position. | 125 // Selects a layer to be scrolled using the |scroll_state| start position. |
119 // Returns SCROLL_STARTED if the layer at the coordinates can be scrolled, | 126 // Returns SCROLL_STARTED if the layer at the coordinates can be scrolled, |
120 // SCROLL_ON_MAIN_THREAD if the scroll event should instead be delegated to | 127 // SCROLL_ON_MAIN_THREAD if the scroll event should instead be delegated to |
121 // the main thread, or SCROLL_IGNORED if there is nothing to be scrolled at | 128 // the main thread, or SCROLL_IGNORED if there is nothing to be scrolled at |
122 // the given coordinates. | 129 // the given coordinates. |
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220 InputHandler() {} | 227 InputHandler() {} |
221 virtual ~InputHandler() {} | 228 virtual ~InputHandler() {} |
222 | 229 |
223 private: | 230 private: |
224 DISALLOW_COPY_AND_ASSIGN(InputHandler); | 231 DISALLOW_COPY_AND_ASSIGN(InputHandler); |
225 }; | 232 }; |
226 | 233 |
227 } // namespace cc | 234 } // namespace cc |
228 | 235 |
229 #endif // CC_INPUT_INPUT_HANDLER_H_ | 236 #endif // CC_INPUT_INPUT_HANDLER_H_ |
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