1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* Copyright (C) 2010, 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ScrollAnimatorMac_h
#define ScrollAnimatorMac_h
#include "platform/Timer.h"
#include "platform/geometry/FloatPoint.h"
#include "platform/geometry/FloatSize.h"
#include "platform/geometry/IntRect.h"
#include "platform/mac/ScrollElasticityController.h"
#include "platform/scroll/ScrollAnimator.h"
#include "wtf/RetainPtr.h"
OBJC_CLASS WebScrollAnimationHelperDelegate;
OBJC_CLASS WebScrollbarPainterControllerDelegate;
OBJC_CLASS WebScrollbarPainterDelegate;
typedef id ScrollbarPainterController;
#if !USE(RUBBER_BANDING)
class ScrollElasticityControllerClient { };
#endif
namespace WebCore {
class Scrollbar;
class PLATFORM_EXPORT ScrollAnimatorMac : public ScrollAnimator, private ScrollElasticityControllerClient {
public:
ScrollAnimatorMac(ScrollableArea*);
virtual ~ScrollAnimatorMac();
void immediateScrollToPointForScrollAnimation(const FloatPoint& newPosition);
bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
void updateScrollerStyle();
bool scrollbarPaintTimerIsActive() const;
void startScrollbarPaintTimer();
void stopScrollbarPaintTimer();
void sendContentAreaScrolledSoon(const FloatSize& scrollDelta);
void setVisibleScrollerThumbRect(const IntRect&);
static bool canUseCoordinatedScrollbar();
private:
RetainPtr<id> m_scrollAnimationHelper;
RetainPtr<WebScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
RetainPtr<ScrollbarPainterController> m_scrollbarPainterController;
RetainPtr<WebScrollbarPainterControllerDelegate> m_scrollbarPainterControllerDelegate;
RetainPtr<WebScrollbarPainterDelegate> m_horizontalScrollbarPainterDelegate;
RetainPtr<WebScrollbarPainterDelegate> m_verticalScrollbarPainterDelegate;
void initialScrollbarPaintTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_initialScrollbarPaintTimer;
void sendContentAreaScrolledTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_sendContentAreaScrolledTimer;
FloatSize m_contentAreaScrolledTimerScrollDelta;
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float delta) OVERRIDE;
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&) OVERRIDE;
#if USE(RUBBER_BANDING)
virtual bool handleWheelEvent(const PlatformWheelEvent&) OVERRIDE;
#endif
virtual void handleWheelEventPhase(PlatformWheelEventPhase) OVERRIDE;
virtual void cancelAnimations() OVERRIDE;
virtual void setIsActive() OVERRIDE;
virtual void contentAreaWillPaint() const OVERRIDE;
virtual void mouseEnteredContentArea() const OVERRIDE;
virtual void mouseExitedContentArea() const OVERRIDE;
virtual void mouseMovedInContentArea() const OVERRIDE;
virtual void mouseEnteredScrollbar(Scrollbar*) const OVERRIDE;
virtual void mouseExitedScrollbar(Scrollbar*) const OVERRIDE;
virtual void willStartLiveResize() OVERRIDE;
virtual void contentsResized() const OVERRIDE;
virtual void willEndLiveResize() OVERRIDE;
virtual void contentAreaDidShow() const OVERRIDE;
virtual void contentAreaDidHide() const OVERRIDE;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
void mayBeginScrollGesture() const;
virtual void finishCurrentScrollAnimations() OVERRIDE;
virtual void didAddVerticalScrollbar(Scrollbar*) OVERRIDE;
virtual void willRemoveVerticalScrollbar(Scrollbar*) OVERRIDE;
virtual void didAddHorizontalScrollbar(Scrollbar*) OVERRIDE;
virtual void willRemoveHorizontalScrollbar(Scrollbar*) OVERRIDE;
virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) OVERRIDE;
virtual void notifyContentAreaScrolled(const FloatSize& delta) OVERRIDE;
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
void immediateScrollTo(const FloatPoint&);
virtual bool isRubberBandInProgress() const OVERRIDE;
#if USE(RUBBER_BANDING)
/// ScrollElasticityControllerClient member functions.
virtual IntSize stretchAmount() OVERRIDE;
virtual bool allowsHorizontalStretching() OVERRIDE;
virtual bool allowsVerticalStretching() OVERRIDE;
virtual bool pinnedInDirection(const FloatSize&) OVERRIDE;
virtual bool canScrollHorizontally() OVERRIDE;
virtual bool canScrollVertically() OVERRIDE;
virtual WebCore::IntPoint absoluteScrollPosition() OVERRIDE;
virtual void immediateScrollByWithoutContentEdgeConstraints(const FloatSize&) OVERRIDE;
virtual void immediateScrollBy(const FloatSize&) OVERRIDE;
virtual void startSnapRubberbandTimer() OVERRIDE;
virtual void stopSnapRubberbandTimer() OVERRIDE;
virtual void adjustScrollPositionToBoundsIfNecessary() OVERRIDE;
bool pinnedInDirection(float deltaX, float deltaY);
void snapRubberBandTimerFired(Timer<ScrollAnimatorMac>*);
ScrollElasticityController m_scrollElasticityController;
Timer<ScrollAnimatorMac> m_snapRubberBandTimer;
#endif
bool m_haveScrolledSincePageLoad;
bool m_needsScrollerStyleUpdate;
IntRect m_visibleScrollerThumbRect;
};
} // namespace WebCore
#endif // ScrollAnimatorMac_h
|
