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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" | 5 #include "config.h" |
| 6 | 6 |
| 7 #include "CCScrollbarAnimationControllerLinearFade.h" | 7 #include "CCScrollbarAnimationControllerLinearFade.h" |
| 8 | 8 |
| 9 #include "CCScrollbarLayerImpl.h" | 9 #include "CCScrollbarLayerImpl.h" |
| 10 | 10 |
| 11 namespace cc { | 11 namespace cc { |
| 12 | 12 |
| 13 scoped_ptr<CCScrollbarAnimationControllerLinearFade> CCScrollbarAnimationControl
lerLinearFade::create(CCLayerImpl* scrollLayer, double fadeoutDelay, double fade
outLength) | 13 scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerL
inearFade::create(LayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLen
gth) |
| 14 { | 14 { |
| 15 return make_scoped_ptr(new CCScrollbarAnimationControllerLinearFade(scrollLa
yer, fadeoutDelay, fadeoutLength)); | 15 return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLaye
r, fadeoutDelay, fadeoutLength)); |
| 16 } | 16 } |
| 17 | 17 |
| 18 CCScrollbarAnimationControllerLinearFade::CCScrollbarAnimationControllerLinearFa
de(CCLayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLength) | 18 ScrollbarAnimationControllerLinearFade::ScrollbarAnimationControllerLinearFade(L
ayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLength) |
| 19 : CCScrollbarAnimationController(scrollLayer) | 19 : ScrollbarAnimationController(scrollLayer) |
| 20 , m_lastAwakenTime(-100000000) // arbitrary invalid timestamp | 20 , m_lastAwakenTime(-100000000) // arbitrary invalid timestamp |
| 21 , m_pinchGestureInEffect(false) | 21 , m_pinchGestureInEffect(false) |
| 22 , m_fadeoutDelay(fadeoutDelay) | 22 , m_fadeoutDelay(fadeoutDelay) |
| 23 , m_fadeoutLength(fadeoutLength) | 23 , m_fadeoutLength(fadeoutLength) |
| 24 { | 24 { |
| 25 } | 25 } |
| 26 | 26 |
| 27 CCScrollbarAnimationControllerLinearFade::~CCScrollbarAnimationControllerLinearF
ade() | 27 ScrollbarAnimationControllerLinearFade::~ScrollbarAnimationControllerLinearFade(
) |
| 28 { | 28 { |
| 29 } | 29 } |
| 30 | 30 |
| 31 bool CCScrollbarAnimationControllerLinearFade::animate(double monotonicTime) | 31 bool ScrollbarAnimationControllerLinearFade::animate(double monotonicTime) |
| 32 { | 32 { |
| 33 float opacity = opacityAtTime(monotonicTime); | 33 float opacity = opacityAtTime(monotonicTime); |
| 34 if (horizontalScrollbarLayer()) | 34 if (horizontalScrollbarLayer()) |
| 35 horizontalScrollbarLayer()->setOpacity(opacity); | 35 horizontalScrollbarLayer()->setOpacity(opacity); |
| 36 if (verticalScrollbarLayer()) | 36 if (verticalScrollbarLayer()) |
| 37 verticalScrollbarLayer()->setOpacity(opacity); | 37 verticalScrollbarLayer()->setOpacity(opacity); |
| 38 return opacity; | 38 return opacity; |
| 39 } | 39 } |
| 40 | 40 |
| 41 void CCScrollbarAnimationControllerLinearFade::didPinchGestureUpdateAtTime(doubl
e) | 41 void ScrollbarAnimationControllerLinearFade::didPinchGestureUpdateAtTime(double) |
| 42 { | 42 { |
| 43 m_pinchGestureInEffect = true; | 43 m_pinchGestureInEffect = true; |
| 44 } | 44 } |
| 45 | 45 |
| 46 void CCScrollbarAnimationControllerLinearFade::didPinchGestureEndAtTime(double m
onotonicTime) | 46 void ScrollbarAnimationControllerLinearFade::didPinchGestureEndAtTime(double mon
otonicTime) |
| 47 { | 47 { |
| 48 m_pinchGestureInEffect = false; | 48 m_pinchGestureInEffect = false; |
| 49 m_lastAwakenTime = monotonicTime; | 49 m_lastAwakenTime = monotonicTime; |
| 50 } | 50 } |
| 51 | 51 |
| 52 void CCScrollbarAnimationControllerLinearFade::updateScrollOffsetAtTime(CCLayerI
mpl* scrollLayer, double monotonicTime) | 52 void ScrollbarAnimationControllerLinearFade::updateScrollOffsetAtTime(LayerImpl*
scrollLayer, double monotonicTime) |
| 53 { | 53 { |
| 54 FloatPoint previousPos = currentPos(); | 54 FloatPoint previousPos = currentPos(); |
| 55 CCScrollbarAnimationController::updateScrollOffsetAtTime(scrollLayer, monoto
nicTime); | 55 ScrollbarAnimationController::updateScrollOffsetAtTime(scrollLayer, monotoni
cTime); |
| 56 | 56 |
| 57 if (previousPos == currentPos()) | 57 if (previousPos == currentPos()) |
| 58 return; | 58 return; |
| 59 | 59 |
| 60 m_lastAwakenTime = monotonicTime; | 60 m_lastAwakenTime = monotonicTime; |
| 61 } | 61 } |
| 62 | 62 |
| 63 float CCScrollbarAnimationControllerLinearFade::opacityAtTime(double monotonicTi
me) | 63 float ScrollbarAnimationControllerLinearFade::opacityAtTime(double monotonicTime
) |
| 64 { | 64 { |
| 65 if (m_pinchGestureInEffect) | 65 if (m_pinchGestureInEffect) |
| 66 return 1; | 66 return 1; |
| 67 | 67 |
| 68 double delta = monotonicTime - m_lastAwakenTime; | 68 double delta = monotonicTime - m_lastAwakenTime; |
| 69 | 69 |
| 70 if (delta <= m_fadeoutDelay) | 70 if (delta <= m_fadeoutDelay) |
| 71 return 1; | 71 return 1; |
| 72 if (delta < m_fadeoutDelay + m_fadeoutLength) | 72 if (delta < m_fadeoutDelay + m_fadeoutLength) |
| 73 return (m_fadeoutDelay + m_fadeoutLength - delta) / m_fadeoutLength; | 73 return (m_fadeoutDelay + m_fadeoutLength - delta) / m_fadeoutLength; |
| 74 return 0; | 74 return 0; |
| 75 } | 75 } |
| 76 | 76 |
| 77 } // namespace cc | 77 } // namespace cc |
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