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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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