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
162
|
/*
* 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
#if ENABLE(SMOOTH_SCROLLING)
#include "IntRect.h"
#include "FloatPoint.h"
#include "FloatSize.h"
#include "ScrollAnimator.h"
#include "Timer.h"
#include <wtf/RetainPtr.h>
#ifdef __OBJC__
@class ScrollAnimationHelperDelegate;
@class ScrollbarPainterDelegate;
@class ScrollbarPainterControllerDelegate;
@class ScrollbarPainterDelegate;
#else
class ScrollAnimationHelperDelegate;
class ScrollbarPainterDelegate;
class ScrollbarPainterControllerDelegate;
class ScrollbarPainterDelegate;
#endif
#if USE(WK_SCROLLBAR_PAINTER)
typedef struct __WKScrollbarPainterController *WKScrollbarPainterControllerRef;
#endif
namespace WebCore {
class Scrollbar;
class ScrollAnimatorMac : public ScrollAnimator {
public:
ScrollAnimatorMac(ScrollableArea*);
virtual ~ScrollAnimatorMac();
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier);
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&);
#if ENABLE(RUBBER_BANDING)
virtual void handleWheelEvent(PlatformWheelEvent&);
#if ENABLE(GESTURE_EVENTS)
virtual void handleGestureEvent(const PlatformGestureEvent&);
#endif
#endif
virtual void cancelAnimations();
void immediateScrollToPoint(const FloatPoint& newPosition);
void immediateScrollByDeltaX(float deltaX);
void immediateScrollByDeltaY(float deltaY);
void setIsDrawingIntoLayer(bool b) { m_drawingIntoLayer = b; }
bool isDrawingIntoLayer() const { return m_drawingIntoLayer; }
bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
#if USE(WK_SCROLLBAR_PAINTER)
bool scrollbarPaintTimerIsActive() const;
void startScrollbarPaintTimer();
void stopScrollbarPaintTimer();
#endif
void setVisibleScrollerThumbRect(const IntRect&);
private:
RetainPtr<id> m_scrollAnimationHelper;
RetainPtr<ScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
#if USE(WK_SCROLLBAR_PAINTER)
RetainPtr<WKScrollbarPainterControllerRef> m_scrollbarPainterController;
RetainPtr<ScrollbarPainterControllerDelegate> m_scrollbarPainterControllerDelegate;
RetainPtr<id> m_scrollbarPainterDelegate;
void initialScrollbarPaintTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_initialScrollbarPaintTimer;
#endif
virtual void notityPositionChanged();
virtual void contentAreaWillPaint() const;
virtual void mouseEnteredContentArea() const;
virtual void mouseExitedContentArea() const;
virtual void mouseMovedInContentArea() const;
virtual void willStartLiveResize();
virtual void contentsResized() const;
virtual void willEndLiveResize();
virtual void contentAreaDidShow() const;
virtual void contentAreaDidHide() const;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
virtual void didAddVerticalScrollbar(Scrollbar*);
virtual void willRemoveVerticalScrollbar(Scrollbar*);
virtual void didAddHorizontalScrollbar(Scrollbar*);
virtual void willRemoveHorizontalScrollbar(Scrollbar*);
float adjustScrollXPositionIfNecessary(float) const;
float adjustScrollYPositionIfNecessary(float) const;
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
#if ENABLE(RUBBER_BANDING)
bool allowsVerticalStretching() const;
bool allowsHorizontalStretching() const;
bool pinnedInDirection(float deltaX, float deltaY);
void snapRubberBand();
void snapRubberBandTimerFired(Timer<ScrollAnimatorMac>*);
void smoothScrollWithEvent(PlatformWheelEvent&);
void beginScrollGesture();
void endScrollGesture();
bool m_inScrollGesture;
bool m_momentumScrollInProgress;
bool m_ignoreMomentumScrolls;
CFTimeInterval m_lastMomemtumScrollTimestamp;
FloatSize m_overflowScrollDelta;
FloatSize m_stretchScrollForce;
FloatSize m_momentumVelocity;
// Rubber band state.
CFTimeInterval m_startTime;
FloatSize m_startStretch;
FloatPoint m_origOrigin;
FloatSize m_origVelocity;
Timer<ScrollAnimatorMac> m_snapRubberBandTimer;
#endif
bool m_drawingIntoLayer;
bool m_haveScrolledSincePageLoad;
IntRect m_visibleScrollerThumbRect;
};
} // namespace WebCore
#endif // ENABLE(SMOOTH_SCROLLING)
#endif // ScrollAnimatorMac_h
|
