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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 CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ | 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ |
6 #define CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ | 6 #define CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h" | 10 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h" |
11 | 11 |
12 namespace cc { | 12 namespace ui { |
13 struct LatencyInfo; | 13 struct LatencyInfo; |
14 } | 14 } |
15 | 15 |
16 namespace content { | 16 namespace content { |
17 | 17 |
18 class MockRenderWidgetHost; | 18 class MockRenderWidgetHost; |
19 class OverscrollControllerDelegate; | 19 class OverscrollControllerDelegate; |
20 class RenderWidgetHostImpl; | 20 class RenderWidgetHostImpl; |
21 | 21 |
22 enum OverscrollMode { | 22 enum OverscrollMode { |
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37 // Creates an overscroll controller for the specified RenderWidgetHost. | 37 // Creates an overscroll controller for the specified RenderWidgetHost. |
38 // The RenderWidgetHost owns this overscroll controller. | 38 // The RenderWidgetHost owns this overscroll controller. |
39 explicit OverscrollController(RenderWidgetHostImpl* widget_host); | 39 explicit OverscrollController(RenderWidgetHostImpl* widget_host); |
40 virtual ~OverscrollController(); | 40 virtual ~OverscrollController(); |
41 | 41 |
42 // This must be called when dispatching any event from the | 42 // This must be called when dispatching any event from the |
43 // RenderWidgetHostView so that the state of the overscroll gesture can be | 43 // RenderWidgetHostView so that the state of the overscroll gesture can be |
44 // updated properly. | 44 // updated properly. |
45 // Returns true if the event should be dispatched, false otherwise. | 45 // Returns true if the event should be dispatched, false otherwise. |
46 bool WillDispatchEvent(const WebKit::WebInputEvent& event, | 46 bool WillDispatchEvent(const WebKit::WebInputEvent& event, |
47 const cc::LatencyInfo& latency_info); | 47 const ui::LatencyInfo& latency_info); |
48 | 48 |
49 // This must be called when the ACK for any event comes in. This updates the | 49 // This must be called when the ACK for any event comes in. This updates the |
50 // overscroll gesture status as appropriate. | 50 // overscroll gesture status as appropriate. |
51 void ReceivedEventACK(const WebKit::WebInputEvent& event, bool processed); | 51 void ReceivedEventACK(const WebKit::WebInputEvent& event, bool processed); |
52 | 52 |
53 OverscrollMode overscroll_mode() const { return overscroll_mode_; } | 53 OverscrollMode overscroll_mode() const { return overscroll_mode_; } |
54 | 54 |
55 void set_delegate(OverscrollControllerDelegate* delegate) { | 55 void set_delegate(OverscrollControllerDelegate* delegate) { |
56 delegate_ = delegate; | 56 delegate_ = delegate; |
57 } | 57 } |
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119 // The delegate that receives the overscroll updates. The delegate is not | 119 // The delegate that receives the overscroll updates. The delegate is not |
120 // owned by this controller. | 120 // owned by this controller. |
121 OverscrollControllerDelegate* delegate_; | 121 OverscrollControllerDelegate* delegate_; |
122 | 122 |
123 DISALLOW_COPY_AND_ASSIGN(OverscrollController); | 123 DISALLOW_COPY_AND_ASSIGN(OverscrollController); |
124 }; | 124 }; |
125 | 125 |
126 } // namespace content | 126 } // namespace content |
127 | 127 |
128 #endif // CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ | 128 #endif // CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_ |
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