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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include "content/browser/renderer_host/input/gesture_event_queue.h" | 5 #include "content/browser/renderer_host/input/gesture_event_queue.h" |
6 | 6 |
7 #include "base/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
8 #include "base/strings/string_number_conversions.h" | 8 #include "base/strings/string_number_conversions.h" |
9 #include "content/browser/renderer_host/input/input_router.h" | 9 #include "content/browser/renderer_host/input/input_router.h" |
10 #include "content/browser/renderer_host/input/touchpad_tap_suppression_controlle
r.h" | 10 #include "content/browser/renderer_host/input/touchpad_tap_suppression_controlle
r.h" |
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86 return false; | 86 return false; |
87 } | 87 } |
88 return true; | 88 return true; |
89 } | 89 } |
90 } | 90 } |
91 | 91 |
92 // NOTE: The filters are applied successively. This simplifies the change. | 92 // NOTE: The filters are applied successively. This simplifies the change. |
93 bool GestureEventQueue::ShouldForward( | 93 bool GestureEventQueue::ShouldForward( |
94 const GestureEventWithLatencyInfo& gesture_event) { | 94 const GestureEventWithLatencyInfo& gesture_event) { |
95 TRACE_EVENT0("input", "GestureEventQueue::ShouldForward"); | 95 TRACE_EVENT0("input", "GestureEventQueue::ShouldForward"); |
96 return ShouldForwardForZeroVelocityFlingStart(gesture_event) && | 96 return ShouldForwardForBounceReduction(gesture_event) && |
97 ShouldForwardForBounceReduction(gesture_event) && | 97 ShouldForwardForGFCFiltering(gesture_event) && |
98 ShouldForwardForGFCFiltering(gesture_event) && | 98 ShouldForwardForTapSuppression(gesture_event) && |
99 ShouldForwardForTapSuppression(gesture_event) && | 99 ShouldForwardForCoalescing(gesture_event); |
100 ShouldForwardForCoalescing(gesture_event); | |
101 } | |
102 | |
103 bool GestureEventQueue::ShouldForwardForZeroVelocityFlingStart( | |
104 const GestureEventWithLatencyInfo& gesture_event) const { | |
105 return gesture_event.event.type != WebInputEvent::GestureFlingStart || | |
106 gesture_event.event.sourceDevice != WebGestureEvent::Touchpad || | |
107 gesture_event.event.data.flingStart.velocityX != 0 || | |
108 gesture_event.event.data.flingStart.velocityY != 0; | |
109 } | 100 } |
110 | 101 |
111 bool GestureEventQueue::ShouldForwardForGFCFiltering( | 102 bool GestureEventQueue::ShouldForwardForGFCFiltering( |
112 const GestureEventWithLatencyInfo& gesture_event) const { | 103 const GestureEventWithLatencyInfo& gesture_event) const { |
113 return gesture_event.event.type != WebInputEvent::GestureFlingCancel || | 104 return gesture_event.event.type != WebInputEvent::GestureFlingCancel || |
114 !ShouldDiscardFlingCancelEvent(gesture_event); | 105 !ShouldDiscardFlingCancelEvent(gesture_event); |
115 } | 106 } |
116 | 107 |
117 bool GestureEventQueue::ShouldForwardForTapSuppression( | 108 bool GestureEventQueue::ShouldForwardForTapSuppression( |
118 const GestureEventWithLatencyInfo& gesture_event) { | 109 const GestureEventWithLatencyInfo& gesture_event) { |
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375 return 0; | 366 return 0; |
376 | 367 |
377 if (!ignore_next_ack_) | 368 if (!ignore_next_ack_) |
378 return 1; | 369 return 1; |
379 | 370 |
380 DCHECK_GT(coalesced_gesture_events_.size(), 1U); | 371 DCHECK_GT(coalesced_gesture_events_.size(), 1U); |
381 return 2; | 372 return 2; |
382 } | 373 } |
383 | 374 |
384 } // namespace content | 375 } // namespace content |
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