1/*
2 * Copyright (C) 2007 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#pragma once
30
31#include "CSSAnimationController.h"
32#include "ImplicitAnimation.h"
33#include "KeyframeAnimation.h"
34#include <wtf/HashMap.h>
35#include <wtf/text/AtomicString.h>
36
37namespace WebCore {
38
39class CSSAnimationControllerPrivate;
40class CSSAnimationController;
41class RenderElement;
42class RenderStyle;
43
44// A CompositeAnimation represents a collection of animations that are running
45// on a single RenderElement, such as a number of properties transitioning at once.
46class CompositeAnimation : public RefCounted<CompositeAnimation> {
47 WTF_MAKE_FAST_ALLOCATED;
48public:
49 static Ref<CompositeAnimation> create(CSSAnimationControllerPrivate& animationController)
50 {
51 return adoptRef(*new CompositeAnimation(animationController));
52 };
53
54 ~CompositeAnimation();
55
56 void clearElement();
57
58 AnimationUpdate animate(Element&, const RenderStyle* currentStyle, const RenderStyle& targetStyle);
59 std::unique_ptr<RenderStyle> getAnimatedStyle() const;
60 bool computeExtentOfTransformAnimation(LayoutRect&) const;
61
62 Optional<Seconds> timeToNextService() const;
63
64 CSSAnimationControllerPrivate& animationController() const { return m_animationController; }
65
66 void suspendAnimations();
67 void resumeAnimations();
68 bool isSuspended() const { return m_suspended; }
69
70 bool hasAnimations() const { return !m_transitions.isEmpty() || !m_keyframeAnimations.isEmpty(); }
71
72 bool isAnimatingProperty(CSSPropertyID, bool acceleratedOnly) const;
73
74 KeyframeAnimation* animationForProperty(CSSPropertyID) const;
75
76 void overrideImplicitAnimations(CSSPropertyID);
77 void resumeOverriddenImplicitAnimations(CSSPropertyID);
78
79 bool pauseAnimationAtTime(const AtomicString& name, double t);
80 bool pauseTransitionAtTime(CSSPropertyID, double);
81 unsigned numberOfActiveAnimations() const;
82
83 bool hasAnimationThatDependsOnLayout() const { return m_hasAnimationThatDependsOnLayout; }
84
85private:
86 CompositeAnimation(CSSAnimationControllerPrivate&);
87
88 void updateTransitions(Element&, const RenderStyle* currentStyle, const RenderStyle& targetStyle);
89 void updateKeyframeAnimations(Element&, const RenderStyle* currentStyle, const RenderStyle& targetStyle);
90
91 typedef HashMap<int, RefPtr<ImplicitAnimation>> CSSPropertyTransitionsMap;
92 typedef HashMap<AtomicStringImpl*, RefPtr<KeyframeAnimation>> AnimationNameMap;
93
94 bool m_suspended { false };
95 bool m_hasAnimationThatDependsOnLayout { false };
96
97 CSSAnimationControllerPrivate& m_animationController;
98 CSSPropertyTransitionsMap m_transitions;
99 AnimationNameMap m_keyframeAnimations;
100 Vector<AtomicStringImpl*> m_keyframeAnimationOrderMap;
101};
102
103} // namespace WebCore
104