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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 "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
11 #include "cc/base/cc_export.h" | 11 #include "cc/base/cc_export.h" |
12 #include "cc/base/swap_promise_monitor.h" | 12 #include "cc/base/swap_promise_monitor.h" |
13 #include "cc/input/scrollbar.h" | 13 #include "cc/input/scrollbar.h" |
14 | 14 |
15 namespace gfx { | 15 namespace gfx { |
16 class Point; | 16 class Point; |
17 class PointF; | 17 class PointF; |
18 class Vector2d; | 18 class Vector2d; |
19 class Vector2dF; | 19 class Vector2dF; |
20 } | 20 } |
21 | 21 |
22 namespace ui { struct LatencyInfo; } | 22 namespace ui { struct LatencyInfo; } |
23 | 23 |
24 namespace cc { | 24 namespace cc { |
25 | 25 |
26 class LayerScrollOffsetDelegate; | 26 class LayerScrollOffsetDelegate; |
27 class ScrollElasticityControllerClient; | |
27 | 28 |
28 struct CC_EXPORT InputHandlerScrollResult { | 29 struct CC_EXPORT InputHandlerScrollResult { |
29 InputHandlerScrollResult(); | 30 InputHandlerScrollResult(); |
30 // Did any layer scroll as a result this ScrollBy call? | 31 // Did any layer scroll as a result this ScrollBy call? |
31 bool did_scroll; | 32 bool did_scroll; |
32 // Was any of the scroll delta argument to this ScrollBy call not used? | 33 // Was any of the scroll delta argument to this ScrollBy call not used? |
33 bool did_overscroll_root; | 34 bool did_overscroll_root; |
34 // The total overscroll that has been accumulated by all ScrollBy calls that | 35 // The total overscroll that has been accumulated by all ScrollBy calls that |
35 // have had overscroll since the last ScrollBegin call. This resets upon a | 36 // have had overscroll since the last ScrollBegin call. This resets upon a |
36 // ScrollBy with no overscroll. | 37 // ScrollBy with no overscroll. |
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143 virtual bool HaveTouchEventHandlersAt(const gfx::Point& viewport_point) = 0; | 144 virtual bool HaveTouchEventHandlersAt(const gfx::Point& viewport_point) = 0; |
144 | 145 |
145 // Calling CreateLatencyInfoSwapPromiseMonitor() to get a scoped | 146 // Calling CreateLatencyInfoSwapPromiseMonitor() to get a scoped |
146 // LatencyInfoSwapPromiseMonitor. During the life time of the | 147 // LatencyInfoSwapPromiseMonitor. During the life time of the |
147 // LatencyInfoSwapPromiseMonitor, if SetNeedsRedraw() or SetNeedsRedrawRect() | 148 // LatencyInfoSwapPromiseMonitor, if SetNeedsRedraw() or SetNeedsRedrawRect() |
148 // is called on LayerTreeHostImpl, the original latency info will be turned | 149 // is called on LayerTreeHostImpl, the original latency info will be turned |
149 // into a LatencyInfoSwapPromise. | 150 // into a LatencyInfoSwapPromise. |
150 virtual scoped_ptr<SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor( | 151 virtual scoped_ptr<SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor( |
151 ui::LatencyInfo* latency) = 0; | 152 ui::LatencyInfo* latency) = 0; |
152 | 153 |
154 // Retrieve the client to interface with a ScrollElasticityController. | |
aelias_OOO_until_Jul13
2014/11/12 22:17:59
This comment adds no information, please delete it
ccameron
2014/11/13 00:28:37
Done.
| |
155 virtual ScrollElasticityControllerClient* | |
156 GetScrollElasticityControllerClient() = 0; | |
157 | |
153 protected: | 158 protected: |
154 InputHandler() {} | 159 InputHandler() {} |
155 virtual ~InputHandler() {} | 160 virtual ~InputHandler() {} |
156 | 161 |
157 private: | 162 private: |
158 DISALLOW_COPY_AND_ASSIGN(InputHandler); | 163 DISALLOW_COPY_AND_ASSIGN(InputHandler); |
159 }; | 164 }; |
160 | 165 |
161 } // namespace cc | 166 } // namespace cc |
162 | 167 |
163 #endif // CC_INPUT_INPUT_HANDLER_H_ | 168 #endif // CC_INPUT_INPUT_HANDLER_H_ |
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