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Side by Side Diff: content/browser/renderer_host/touch_event_queue.h

Issue 11343017: Move remaining files in content\browser\renderer_host to content namespace. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: fix mac Created 8 years, 1 month ago
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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_TOUCH_EVENT_QUEUE_H_ 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_TOUCH_EVENT_QUEUE_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_TOUCH_EVENT_QUEUE_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_TOUCH_EVENT_QUEUE_H_
7 7
8 #include <deque> 8 #include <deque>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "content/common/content_export.h" 11 #include "content/common/content_export.h"
12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h" 12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
13 13
14 class MockRenderWidgetHost;
15
16 namespace content { 14 namespace content {
17 15
18 class CoalescedWebTouchEvent; 16 class CoalescedWebTouchEvent;
17 class MockRenderWidgetHost;
19 class RenderWidgetHostImpl; 18 class RenderWidgetHostImpl;
20 19
21 // A queue for throttling and coalescing touch-events. 20 // A queue for throttling and coalescing touch-events.
22 class TouchEventQueue { 21 class TouchEventQueue {
23 public: 22 public:
24 explicit TouchEventQueue(RenderWidgetHostImpl* host); 23 explicit TouchEventQueue(RenderWidgetHostImpl* host);
25 virtual ~TouchEventQueue(); 24 virtual ~TouchEventQueue();
26 25
27 // Adds an event to the queue. The event may be coalesced with previously 26 // Adds an event to the queue. The event may be coalesced with previously
28 // queued events (e.g. consecutive touch-move events can be coalesced into a 27 // queued events (e.g. consecutive touch-move events can be coalesced into a
(...skipping 13 matching lines...) Expand all
42 // Resets all internal state. This does not trigger any touch or gesture 41 // Resets all internal state. This does not trigger any touch or gesture
43 // events to be sent. 42 // events to be sent.
44 void Reset(); 43 void Reset();
45 44
46 // Returns whether the event-queue is empty. 45 // Returns whether the event-queue is empty.
47 bool empty() const WARN_UNUSED_RESULT { 46 bool empty() const WARN_UNUSED_RESULT {
48 return touch_queue_.empty(); 47 return touch_queue_.empty();
49 } 48 }
50 49
51 private: 50 private:
52 friend class ::MockRenderWidgetHost; 51 friend class MockRenderWidgetHost;
53 52
54 CONTENT_EXPORT size_t GetQueueSize() const; 53 CONTENT_EXPORT size_t GetQueueSize() const;
55 CONTENT_EXPORT const WebKit::WebTouchEvent& GetLatestEvent() const; 54 CONTENT_EXPORT const WebKit::WebTouchEvent& GetLatestEvent() const;
56 55
57 // Pops the touch-event from the top of the queue and sends it to the 56 // Pops the touch-event from the top of the queue and sends it to the
58 // RenderWidgetHostView. This reduces the size of the queue by one. 57 // RenderWidgetHostView. This reduces the size of the queue by one.
59 void PopTouchEventToView(bool processed); 58 void PopTouchEventToView(bool processed);
60 59
61 // The RenderWidgetHost that owns this event-queue. 60 // The RenderWidgetHost that owns this event-queue.
62 RenderWidgetHostImpl* render_widget_host_; 61 RenderWidgetHostImpl* render_widget_host_;
63 62
64 typedef std::deque<CoalescedWebTouchEvent*> TouchQueue; 63 typedef std::deque<CoalescedWebTouchEvent*> TouchQueue;
65 TouchQueue touch_queue_; 64 TouchQueue touch_queue_;
66 65
67 DISALLOW_COPY_AND_ASSIGN(TouchEventQueue); 66 DISALLOW_COPY_AND_ASSIGN(TouchEventQueue);
68 }; 67 };
69 68
70 } // namespace content 69 } // namespace content
71 70
72 #endif // CONTENT_BROWSER_RENDERER_HOST_TOUCH_EVENT_QUEUE_H_ 71 #endif // CONTENT_BROWSER_RENDERER_HOST_TOUCH_EVENT_QUEUE_H_
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