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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 #include "cc/animation/scrollbar_animation_controller_linear_fade.h" | 5 #include "cc/animation/scrollbar_animation_controller_linear_fade.h" |
6 | 6 |
7 #include "base/time.h" | 7 #include "base/time.h" |
8 #include "cc/layer_impl.h" | 8 #include "cc/layers/layer_impl.h" |
9 | 9 |
10 namespace cc { | 10 namespace cc { |
11 | 11 |
12 scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerL
inearFade::create(LayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::Ti
meDelta fadeoutLength) | 12 scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerL
inearFade::create(LayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::Ti
meDelta fadeoutLength) |
13 { | 13 { |
14 return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLaye
r, fadeoutDelay, fadeoutLength)); | 14 return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLaye
r, fadeoutDelay, fadeoutLength)); |
15 } | 15 } |
16 | 16 |
17 ScrollbarAnimationControllerLinearFade::ScrollbarAnimationControllerLinearFade(L
ayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::TimeDelta fadeoutLeng
th) | 17 ScrollbarAnimationControllerLinearFade::ScrollbarAnimationControllerLinearFade(L
ayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::TimeDelta fadeoutLeng
th) |
18 : ScrollbarAnimationController() | 18 : ScrollbarAnimationController() |
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85 base::TimeDelta delta = now - m_lastAwakenTime; | 85 base::TimeDelta delta = now - m_lastAwakenTime; |
86 | 86 |
87 if (delta <= m_fadeoutDelay) | 87 if (delta <= m_fadeoutDelay) |
88 return 1; | 88 return 1; |
89 if (delta < m_fadeoutDelay + m_fadeoutLength) | 89 if (delta < m_fadeoutDelay + m_fadeoutLength) |
90 return (m_fadeoutDelay + m_fadeoutLength - delta).InSecondsF() / m_fadeo
utLength.InSecondsF(); | 90 return (m_fadeoutDelay + m_fadeoutLength - delta).InSecondsF() / m_fadeo
utLength.InSecondsF(); |
91 return 0; | 91 return 0; |
92 } | 92 } |
93 | 93 |
94 } // namespace cc | 94 } // namespace cc |
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