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1 /* | |
2 * Copyright (C) 2013 Intel Corporation. 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 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 #include "config.h" | |
27 | |
28 #include "core/rendering/animation/WebAnimationProvider.h" | |
29 | |
30 #include "core/animation/AnimationTranslationUtil.h" | |
31 #include "core/animation/css/CSSAnimationData.h" | |
32 #include "core/rendering/style/KeyframeList.h" | |
33 #include "core/rendering/style/RenderStyle.h" | |
34 #include "public/platform/WebAnimation.h" | |
35 #include "wtf/text/StringBuilder.h" | |
36 | |
37 using blink::WebAnimation; | |
38 | |
39 namespace WebCore { | |
40 | |
41 namespace { | |
42 | |
43 String animationNameForTransition(AnimatedPropertyID property) | |
44 { | |
45 // | is not a valid identifier character in CSS, so this can never conflict
with a keyframe identifier. | |
46 StringBuilder id; | |
47 id.appendLiteral("-|transition"); | |
48 id.appendNumber(static_cast<int>(property)); | |
49 id.append('-'); | |
50 return id.toString(); | |
51 } | |
52 | |
53 AnimatedPropertyID cssToGraphicsLayerProperty(CSSPropertyID cssProperty) | |
54 { | |
55 switch (cssProperty) { | |
56 case CSSPropertyWebkitTransform: | |
57 return AnimatedPropertyWebkitTransform; | |
58 case CSSPropertyOpacity: | |
59 return AnimatedPropertyOpacity; | |
60 case CSSPropertyBackgroundColor: | |
61 ASSERT_NOT_REACHED(); | |
62 return AnimatedPropertyInvalid; // Chromium compositor cannot accelerate
background color yet. | |
63 case CSSPropertyWebkitFilter: | |
64 return AnimatedPropertyWebkitFilter; | |
65 default: | |
66 // It's fine if we see other css properties here; they are just not acce
lerated. | |
67 break; | |
68 } | |
69 return AnimatedPropertyInvalid; | |
70 } | |
71 | |
72 } // namespace | |
73 | |
74 WebAnimations::WebAnimations() | |
75 { | |
76 } | |
77 | |
78 WebAnimations::~WebAnimations() | |
79 { | |
80 } | |
81 | |
82 // Copy constructor is needed to use this struct as a return value. It actually
moves the ownership, not copy. | |
83 WebAnimations::WebAnimations(const WebAnimations& other) | |
84 { | |
85 ASSERT(isEmpty()); | |
86 m_transformAnimation.swap(const_cast<OwnPtr<WebAnimation>& >(other.m_transfo
rmAnimation)); | |
87 m_opacityAnimation.swap(const_cast<OwnPtr<WebAnimation>& >(other.m_opacityAn
imation)); | |
88 m_filterAnimation.swap(const_cast<OwnPtr<WebAnimation>& >(other.m_filterAnim
ation)); | |
89 ASSERT(other.isEmpty()); | |
90 } | |
91 | |
92 bool WebAnimations::isEmpty() const | |
93 { | |
94 return !m_transformAnimation && !m_opacityAnimation && !m_filterAnimation; | |
95 } | |
96 | |
97 WebAnimationProvider::WebAnimationProvider() | |
98 { | |
99 } | |
100 | |
101 WebAnimationProvider::~WebAnimationProvider() | |
102 { | |
103 } | |
104 | |
105 int WebAnimationProvider::getWebAnimationId(const String& animationName) const | |
106 { | |
107 if (!m_animationIdMap.contains(animationName)) | |
108 return 0; | |
109 return m_animationIdMap.get(animationName); | |
110 } | |
111 | |
112 int WebAnimationProvider::getWebAnimationId(CSSPropertyID property) const | |
113 { | |
114 AnimatedPropertyID animatedProperty = cssToGraphicsLayerProperty(property); | |
115 ASSERT(animatedProperty != AnimatedPropertyInvalid); | |
116 return getWebAnimationId(animationNameForTransition(animatedProperty)); | |
117 } | |
118 | |
119 WebAnimations WebAnimationProvider::startAnimation(double timeOffset, const CSSA
nimationData* anim, const KeyframeList& keyframes, bool hasTransform, const IntS
ize& boxSize) | |
120 { | |
121 ASSERT(hasTransform || boxSize.isEmpty()); | |
122 bool hasOpacity = keyframes.containsProperty(CSSPropertyOpacity); | |
123 bool hasFilter = keyframes.containsProperty(CSSPropertyWebkitFilter); | |
124 | |
125 if (!hasOpacity && !hasTransform && !hasFilter) | |
126 return WebAnimations(); | |
127 | |
128 KeyframeValueList transformVector(AnimatedPropertyWebkitTransform); | |
129 KeyframeValueList opacityVector(AnimatedPropertyOpacity); | |
130 KeyframeValueList filterVector(AnimatedPropertyWebkitFilter); | |
131 | |
132 size_t numKeyframes = keyframes.size(); | |
133 for (size_t i = 0; i < numKeyframes; ++i) { | |
134 const KeyframeValue& currentKeyframe = keyframes[i]; | |
135 const RenderStyle* keyframeStyle = currentKeyframe.style(); | |
136 double key = currentKeyframe.key(); | |
137 | |
138 if (!keyframeStyle) | |
139 continue; | |
140 | |
141 // Get timing function. | |
142 RefPtr<TimingFunction> tf = KeyframeValue::timingFunction(*keyframeStyle
); | |
143 | |
144 bool isFirstOrLastKeyframe = !key || key == 1; | |
145 if ((hasTransform && isFirstOrLastKeyframe) || currentKeyframe.containsP
roperty(CSSPropertyWebkitTransform)) | |
146 transformVector.insert(adoptPtr(new TransformAnimationValue(key, &(k
eyframeStyle->transform()), tf))); | |
147 | |
148 if ((hasOpacity && isFirstOrLastKeyframe) || currentKeyframe.containsPro
perty(CSSPropertyOpacity)) | |
149 opacityVector.insert(adoptPtr(new FloatAnimationValue(key, keyframeS
tyle->opacity(), tf))); | |
150 | |
151 if ((hasFilter && isFirstOrLastKeyframe) || currentKeyframe.containsProp
erty(CSSPropertyWebkitFilter)) | |
152 filterVector.insert(adoptPtr(new FilterAnimationValue(key, &(keyfram
eStyle->filter()), tf))); | |
153 } | |
154 WebAnimations resultAnimations; | |
155 if (hasTransform) | |
156 resultAnimations.m_transformAnimation = createWebAnimationAndStoreId(tra
nsformVector, boxSize, anim, keyframes.animationName(), timeOffset); | |
157 if (hasOpacity) | |
158 resultAnimations.m_opacityAnimation = createWebAnimationAndStoreId(opaci
tyVector, IntSize(), anim, keyframes.animationName(), timeOffset); | |
159 if (hasFilter) | |
160 resultAnimations.m_filterAnimation = createWebAnimationAndStoreId(filter
Vector, IntSize(), anim, keyframes.animationName(), timeOffset); | |
161 | |
162 return resultAnimations; | |
163 } | |
164 | |
165 WebAnimations WebAnimationProvider::startTransition(double timeOffset, CSSProper
tyID property, const RenderStyle* fromStyle, const RenderStyle* toStyle, bool ha
sTransform, bool hasFilter, const IntSize& boxSize, float fromOpacity, float toO
pacity) | |
166 { | |
167 ASSERT(property != CSSPropertyInvalid); | |
168 ASSERT(property == CSSPropertyOpacity || (!fromOpacity && !toOpacity)); | |
169 | |
170 WebAnimations resultAnimations; | |
171 if (property == CSSPropertyOpacity) { | |
172 const CSSAnimationData* opacityAnim = toStyle->transitionForProperty(CSS
PropertyOpacity); | |
173 if (opacityAnim && !opacityAnim->isEmptyOrZeroDuration()) { | |
174 KeyframeValueList opacityVector(AnimatedPropertyOpacity); | |
175 opacityVector.insert(adoptPtr(new FloatAnimationValue(0, fromOpacity
))); | |
176 opacityVector.insert(adoptPtr(new FloatAnimationValue(1, toOpacity))
); | |
177 resultAnimations.m_opacityAnimation = createWebAnimationAndStoreId(o
pacityVector, IntSize(), opacityAnim, animationNameForTransition(AnimatedPropert
yOpacity), timeOffset); | |
178 } | |
179 } | |
180 if (property == CSSPropertyWebkitTransform && hasTransform) { | |
181 const CSSAnimationData* transformAnim = toStyle->transitionForProperty(C
SSPropertyWebkitTransform); | |
182 if (transformAnim && !transformAnim->isEmptyOrZeroDuration()) { | |
183 KeyframeValueList transformVector(AnimatedPropertyWebkitTransform); | |
184 transformVector.insert(adoptPtr(new TransformAnimationValue(0, &from
Style->transform()))); | |
185 transformVector.insert(adoptPtr(new TransformAnimationValue(1, &toSt
yle->transform()))); | |
186 resultAnimations.m_transformAnimation = createWebAnimationAndStoreId
(transformVector, boxSize, transformAnim, animationNameForTransition(AnimatedPro
pertyWebkitTransform), timeOffset); | |
187 } | |
188 } | |
189 if (property == CSSPropertyWebkitFilter && hasFilter) { | |
190 const CSSAnimationData* filterAnim = toStyle->transitionForProperty(CSSP
ropertyWebkitFilter); | |
191 if (filterAnim && !filterAnim->isEmptyOrZeroDuration()) { | |
192 KeyframeValueList filterVector(AnimatedPropertyWebkitFilter); | |
193 filterVector.insert(adoptPtr(new FilterAnimationValue(0, &fromStyle-
>filter()))); | |
194 filterVector.insert(adoptPtr(new FilterAnimationValue(1, &toStyle->f
ilter()))); | |
195 resultAnimations.m_filterAnimation = createWebAnimationAndStoreId(fi
lterVector, IntSize(), filterAnim, animationNameForTransition(AnimatedPropertyWe
bkitFilter), timeOffset); | |
196 } | |
197 } | |
198 | |
199 return resultAnimations; | |
200 } | |
201 | |
202 PassOwnPtr<WebAnimation> WebAnimationProvider::createWebAnimationAndStoreId(cons
t KeyframeValueList& values, const IntSize& boxSize, const CSSAnimationData* ani
mation, const String& animationName, double timeOffset) | |
203 { | |
204 int animationId = getWebAnimationId(animationName); | |
205 OwnPtr<WebAnimation> webAnimation(createWebAnimation(values, animation, anim
ationId, timeOffset, boxSize)); | |
206 if (!webAnimation) | |
207 return PassOwnPtr<WebAnimation>(); | |
208 | |
209 if (!animationId) | |
210 m_animationIdMap.set(animationName, webAnimation->id()); | |
211 return webAnimation.release(); | |
212 } | |
213 | |
214 } // namespace WebCore | |
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