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
|
/*
* Copyright (C) 2023 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. ``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
* 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.
*/
#pragma once
#include "AnimationTimeline.h"
#include "Element.h"
#include "ScrollAxis.h"
#include "ScrollTimelineOptions.h"
#include "Styleable.h"
#include <wtf/Ref.h>
#include <wtf/WeakHashSet.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class AnimationTimelinesController;
class Document;
class Element;
class RenderStyle;
class ScrollableArea;
struct TimelineRange;
class ScrollTimeline : public AnimationTimeline {
public:
static Ref<ScrollTimeline> create(Document&, ScrollTimelineOptions&& = { });
static Ref<ScrollTimeline> create(const AtomString&, ScrollAxis);
static Ref<ScrollTimeline> create(Scroller, ScrollAxis);
static Ref<ScrollTimeline> createInactiveStyleOriginatedTimeline(const AtomString& name);
const WeakStyleable& sourceStyleable() const { return m_source; }
virtual Element* bindingsSource() const;
virtual Element* source() const;
void setSource(Element*);
void setSource(const Styleable&);
ScrollAxis axis() const { return m_axis; }
void setAxis(ScrollAxis axis) { m_axis = axis; }
const AtomString& name() const { return m_name; }
void setName(const AtomString& name) { m_name = name; }
bool isInactiveStyleOriginatedTimeline() const { return m_isInactiveStyleOriginatedTimeline; }
AnimationTimeline::ShouldUpdateAnimationsAndSendEvents documentWillUpdateAnimationsAndSendEvents() override;
void updateCurrentTimeIfStale();
AnimationTimelinesController* controller() const override;
std::optional<WebAnimationTime> currentTime(UseCachedCurrentTime = UseCachedCurrentTime::Yes) override;
TimelineRange defaultRange() const override;
WeakPtr<Element, WeakPtrImplWithEventTargetData> timelineScopeDeclaredElement() const { return m_timelineScopeElement; }
void setTimelineScopeElement(const Element&);
void clearTimelineScopeDeclaredElement() { m_timelineScopeElement = nullptr; }
virtual std::pair<WebAnimationTime, WebAnimationTime> intervalForAttachmentRange(const TimelineRange&) const;
void removeTimelineFromDocument(Element*);
struct ResolvedScrollDirection {
bool isVertical;
bool isReversed;
};
protected:
explicit ScrollTimeline(const AtomString&, ScrollAxis);
struct Data {
float scrollOffset { 0 };
float rangeStart { 0 };
float rangeEnd { 0 };
};
static float floatValueForOffset(const Length&, float);
virtual Data computeTimelineData() const;
static ScrollableArea* scrollableAreaForSourceRenderer(const RenderElement*, Document&);
ResolvedScrollDirection resolvedScrollDirection() const;
private:
explicit ScrollTimeline();
explicit ScrollTimeline(Scroller, ScrollAxis);
bool isScrollTimeline() const final { return true; }
void animationTimingDidChange(WebAnimation&) override;
struct CurrentTimeData {
float scrollOffset { 0 };
float maxScrollOffset { 0 };
};
void cacheCurrentTime();
WeakStyleable m_source;
ScrollAxis m_axis { ScrollAxis::Block };
AtomString m_name;
Scroller m_scroller { Scroller::Self };
WeakPtr<Element, WeakPtrImplWithEventTargetData> m_timelineScopeElement;
CurrentTimeData m_cachedCurrentTimeData { };
bool m_isInactiveStyleOriginatedTimeline { false };
};
WTF::TextStream& operator<<(WTF::TextStream&, const ScrollTimeline&);
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ANIMATION_TIMELINE(ScrollTimeline, isScrollTimeline())
|
