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

Issue 63253002: Rename WebKit namespace to blink (part 3) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 1 month ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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_INPUT_TOUCH_EVENT_QUEUE_H_ 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_EVENT_QUEUE_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_EVENT_QUEUE_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_EVENT_QUEUE_H_
7 7
8 #include <deque> 8 #include <deque>
9 #include <map> 9 #include <map>
10 10
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80 // Walks the queue, checking each event for |ShouldForwardToRenderer()|. 80 // Walks the queue, checking each event for |ShouldForwardToRenderer()|.
81 // If true, forwards the touch event and stops processing further events. 81 // If true, forwards the touch event and stops processing further events.
82 // If false, acks the event with |INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS|. 82 // If false, acks the event with |INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS|.
83 void TryForwardNextEventToRenderer(); 83 void TryForwardNextEventToRenderer();
84 84
85 // Pops the touch-event from the top of the queue and sends it to the 85 // Pops the touch-event from the top of the queue and sends it to the
86 // TouchEventQueueClient. This reduces the size of the queue by one. 86 // TouchEventQueueClient. This reduces the size of the queue by one.
87 void PopTouchEventToClient(InputEventAckState ack_result, 87 void PopTouchEventToClient(InputEventAckState ack_result,
88 const ui::LatencyInfo& renderer_latency_info); 88 const ui::LatencyInfo& renderer_latency_info);
89 89
90 bool ShouldForwardToRenderer(const WebKit::WebTouchEvent& event) const; 90 bool ShouldForwardToRenderer(const blink::WebTouchEvent& event) const;
91 91
92 // Handles touch event forwarding and ack'ed event dispatch. 92 // Handles touch event forwarding and ack'ed event dispatch.
93 TouchEventQueueClient* client_; 93 TouchEventQueueClient* client_;
94 94
95 typedef std::deque<CoalescedWebTouchEvent*> TouchQueue; 95 typedef std::deque<CoalescedWebTouchEvent*> TouchQueue;
96 TouchQueue touch_queue_; 96 TouchQueue touch_queue_;
97 97
98 // Maintain the ACK status for each touch point. 98 // Maintain the ACK status for each touch point.
99 typedef std::map<int, InputEventAckState> TouchPointAckStates; 99 typedef std::map<int, InputEventAckState> TouchPointAckStates;
100 TouchPointAckStates touch_ack_states_; 100 TouchPointAckStates touch_ack_states_;
101 101
102 // Used to defer touch forwarding when ack dispatch triggers |QueueEvent()|. 102 // Used to defer touch forwarding when ack dispatch triggers |QueueEvent()|.
103 // If not NULL, |dispatching_touch_ack_| is the touch event of which the ack 103 // If not NULL, |dispatching_touch_ack_| is the touch event of which the ack
104 // is being dispatched. 104 // is being dispatched.
105 CoalescedWebTouchEvent* dispatching_touch_ack_; 105 CoalescedWebTouchEvent* dispatching_touch_ack_;
106 106
107 // Don't send touch events to renderer. This is enabled when the page 107 // Don't send touch events to renderer. This is enabled when the page
108 // is scrolling. This behaviour is currently enabled only on aura behind 108 // is scrolling. This behaviour is currently enabled only on aura behind
109 // a flag. 109 // a flag.
110 bool no_touch_to_renderer_; 110 bool no_touch_to_renderer_;
111 111
112 DISALLOW_COPY_AND_ASSIGN(TouchEventQueue); 112 DISALLOW_COPY_AND_ASSIGN(TouchEventQueue);
113 }; 113 };
114 114
115 } // namespace content 115 } // namespace content
116 116
117 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_EVENT_QUEUE_H_ 117 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_EVENT_QUEUE_H_
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