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1 // | 1 // |
2 // Copyright 2014 Google Inc. All rights reserved. | 2 // Copyright 2014 Google Inc. All rights reserved. |
3 // | 3 // |
4 // Use of this source code is governed by a BSD-style | 4 // Use of this source code is governed by a BSD-style |
5 // license that can be found in the LICENSE file or at | 5 // license that can be found in the LICENSE file or at |
6 // https://developers.google.com/open-source/licenses/bsd | 6 // https://developers.google.com/open-source/licenses/bsd |
7 // | 7 // |
8 | 8 |
9 /// A [window.requestAnimationFrame] based timer for use with transitions. | 9 /// A [window.requestAnimationFrame] based timer for use with transitions. |
10 /// Uses [dart.async.Timer] when the time until next timeout is too long. | 10 /// Uses [dart.async.Timer] when the time until next timeout is too long. |
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90 } | 90 } |
91 _timerScheduled = new Timer(new Duration(milliseconds: delay), _step); | 91 _timerScheduled = new Timer(new Duration(milliseconds: delay), _step); |
92 _animationFrameRequested = false; | 92 _animationFrameRequested = false; |
93 } | 93 } |
94 else { | 94 else { |
95 _animationFrameRequested = true; | 95 _animationFrameRequested = true; |
96 window.animationFrame.then(_step); | 96 window.animationFrame.then(_step); |
97 } | 97 } |
98 } | 98 } |
99 } | 99 } |
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