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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 "config.h" | |
| 6 | |
| 7 #include "cc/scrollbar_animation_controller_linear_fade.h" | 5 #include "cc/scrollbar_animation_controller_linear_fade.h" |
| 8 | 6 |
| 9 #include "cc/scrollbar_layer_impl.h" | 7 #include "cc/scrollbar_layer_impl.h" |
| 10 | 8 |
| 11 namespace cc { | 9 namespace cc { |
| 12 | 10 |
| 13 scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerL
inearFade::create(LayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLen
gth) | 11 scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerL
inearFade::create(LayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLen
gth) |
| 14 { | 12 { |
| 15 return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLaye
r, fadeoutDelay, fadeoutLength)); | 13 return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLaye
r, fadeoutDelay, fadeoutLength)); |
| 16 } | 14 } |
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| 68 double delta = monotonicTime - m_lastAwakenTime; | 66 double delta = monotonicTime - m_lastAwakenTime; |
| 69 | 67 |
| 70 if (delta <= m_fadeoutDelay) | 68 if (delta <= m_fadeoutDelay) |
| 71 return 1; | 69 return 1; |
| 72 if (delta < m_fadeoutDelay + m_fadeoutLength) | 70 if (delta < m_fadeoutDelay + m_fadeoutLength) |
| 73 return (m_fadeoutDelay + m_fadeoutLength - delta) / m_fadeoutLength; | 71 return (m_fadeoutDelay + m_fadeoutLength - delta) / m_fadeoutLength; |
| 74 return 0; | 72 return 0; |
| 75 } | 73 } |
| 76 | 74 |
| 77 } // namespace cc | 75 } // namespace cc |
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