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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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