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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 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 #import "ios/chrome/browser/ui/side_swipe_gesture_recognizer.h" | 5 #import "ios/chrome/browser/ui/side_swipe_gesture_recognizer.h" |
6 | 6 |
7 #include <cmath> | 7 #include <cmath> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 | 10 |
11 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
12 #error "This file requires ARC support." | |
13 #endif | |
14 | |
15 namespace { | 11 namespace { |
16 | 12 |
17 // The absolute maximum swipe angle from |x = y| for a swipe to begin. | 13 // The absolute maximum swipe angle from |x = y| for a swipe to begin. |
18 const CGFloat kMaxSwipeYAngle = 65; | 14 const CGFloat kMaxSwipeYAngle = 65; |
19 // The minimum distance between touches for a swipe to begin. | 15 // The minimum distance between touches for a swipe to begin. |
20 const CGFloat kDefaultMinSwipeXThreshold = 4; | 16 const CGFloat kDefaultMinSwipeXThreshold = 4; |
21 | 17 |
22 } // namespace | 18 } // namespace |
23 | 19 |
24 @implementation SideSwipeGestureRecognizer { | 20 @implementation SideSwipeGestureRecognizer { |
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145 _startPoint = CGPointZero; | 141 _startPoint = CGPointZero; |
146 [super touchesEnded:touches withEvent:event]; | 142 [super touchesEnded:touches withEvent:event]; |
147 } | 143 } |
148 | 144 |
149 - (void)touchesCancelled:(NSSet*)touches withEvent:(UIEvent*)event { | 145 - (void)touchesCancelled:(NSSet*)touches withEvent:(UIEvent*)event { |
150 _startPoint = CGPointZero; | 146 _startPoint = CGPointZero; |
151 [super touchesCancelled:touches withEvent:event]; | 147 [super touchesCancelled:touches withEvent:event]; |
152 } | 148 } |
153 | 149 |
154 @end | 150 @end |
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