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 "AnimationBase.h"
32#include "CSSPropertyNames.h"
33#include "Document.h"
34
35namespace WebCore {
36
37class RenderElement;
38
39// An ImplicitAnimation tracks the state of a transition of a specific CSS property
40// for a single RenderElement.
41class ImplicitAnimation : public AnimationBase {
42public:
43 static Ref<ImplicitAnimation> create(const Animation& animation, CSSPropertyID animatingProperty, Element& element, CompositeAnimation& compositeAnimation, const RenderStyle& fromStyle)
44 {
45 return adoptRef(*new ImplicitAnimation(animation, animatingProperty, element, compositeAnimation, fromStyle));
46 };
47
48 CSSPropertyID transitionProperty() const { return m_transitionProperty; }
49 CSSPropertyID animatingProperty() const { return m_animatingProperty; }
50
51 void onAnimationEnd(double elapsedTime) override;
52 bool startAnimation(double timeOffset) override;
53 void pauseAnimation(double timeOffset) override;
54 void endAnimation(bool fillingForwards = false) override;
55
56 OptionSet<AnimateChange> animate(CompositeAnimation&, const RenderStyle& targetStyle, std::unique_ptr<RenderStyle>& animatedStyle);
57 void getAnimatedStyle(std::unique_ptr<RenderStyle>& animatedStyle) override;
58 void reset(const RenderStyle& to, CompositeAnimation&);
59
60 bool computeExtentOfTransformAnimation(LayoutRect&) const override;
61
62 bool affectsAcceleratedProperty() const;
63
64 void setOverridden(bool);
65 bool overridden() const override { return m_overridden; }
66
67 bool affectsProperty(CSSPropertyID) const override;
68
69 bool hasStyle() const { return m_fromStyle && m_toStyle; }
70
71 bool isTargetPropertyEqual(CSSPropertyID, const RenderStyle*);
72
73 void blendPropertyValueInStyle(CSSPropertyID, RenderStyle*);
74
75 Optional<Seconds> timeToNextService() override;
76
77 bool active() const { return m_active; }
78 void setActive(bool b) { m_active = b; }
79
80 const RenderStyle& unanimatedStyle() const override { return *m_fromStyle; }
81
82 void clear() override;
83
84protected:
85 bool shouldSendEventForListener(Document::ListenerType) const;
86 bool sendTransitionEvent(const AtomicString&, double elapsedTime);
87
88 void validateTransformFunctionList();
89 void checkForMatchingFilterFunctionLists();
90#if ENABLE(FILTERS_LEVEL_2)
91 void checkForMatchingBackdropFilterFunctionLists();
92#endif
93 void checkForMatchingColorFilterFunctionLists();
94
95private:
96 ImplicitAnimation(const Animation&, CSSPropertyID, Element&, CompositeAnimation&, const RenderStyle&);
97 virtual ~ImplicitAnimation();
98
99 // The two styles that we are blending.
100 std::unique_ptr<RenderStyle> m_fromStyle;
101 std::unique_ptr<RenderStyle> m_toStyle;
102
103 CSSPropertyID m_transitionProperty; // Transition property as specified in the RenderStyle.
104 CSSPropertyID m_animatingProperty; // Specific property for this ImplicitAnimation
105
106 bool m_active { true }; // Used for culling the list of transitions.
107 bool m_overridden { false }; // True when there is a keyframe animation that overrides the transitioning property
108};
109
110} // namespace WebCore
111