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 Computer, 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 #include "config.h" 30 31 #include "core/events/ThreadLocalEventNames.h" 32 #include "core/frame/UseCounter.h" 33 #include "core/frame/animation/AnimationControllerPrivate.h" 34 #include "core/frame/animation/CSSPropertyAnimation.h" 35 #include "core/frame/animation/CompositeAnimation.h" 36 #include "core/frame/animation/ImplicitAnimation.h" 37 #include "core/frame/animation/KeyframeAnimation.h" 38 #include "core/rendering/RenderBoxModelObject.h" 39 #include "public/platform/Platform.h" 40 41 namespace WebCore { 42 43 ImplicitAnimation::ImplicitAnimation(const CSSAnimationData* transition, CSSPropertyID animatingProperty, RenderObject& renderer, CompositeAnimation* compAnim, RenderStyle* fromStyle) 44 : AnimationBase(transition, renderer, compAnim) 45 , m_transitionProperty(transition->property()) 46 , m_animatingProperty(animatingProperty) 47 , m_overridden(false) 48 , m_active(true) 49 , m_fromStyle(fromStyle) 50 { 51 ASSERT(animatingProperty != CSSPropertyInvalid); 52 blink::Platform::current()->histogramSparse("WebCore.Animation.CSSProperties", UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(m_animatingProperty)); 53 } 54 55 ImplicitAnimation::~ImplicitAnimation() 56 { 57 // // Make sure to tell the renderer that we are ending. This will make sure any accelerated animations are removed. 58 if (!postActive()) 59 endAnimation(); 60 } 61 62 bool ImplicitAnimation::shouldSendEventForListener(Document::ListenerType inListenerType) const 63 { 64 return m_object->document().hasListenerType(inListenerType); 65 } 66 67 void ImplicitAnimation::animate(CompositeAnimation*, RenderObject*, const RenderStyle*, RenderStyle* targetStyle, RefPtr<RenderStyle>& animatedStyle) 68 { 69 // If we get this far and the animation is done, it means we are cleaning up a just finished animation. 70 // So just return. Everything is already all cleaned up. 71 if (postActive()) 72 return; 73 74 // Reset to start the transition if we are new 75 if (isNew()) 76 reset(targetStyle); 77 78 // Run a cycle of animation. 79 // We know we will need a new render style, so make one if needed 80 if (!animatedStyle) 81 animatedStyle = RenderStyle::clone(targetStyle); 82 83 bool needsAnim = CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress(1, 0, 0)); 84 // FIXME: we also need to detect cases where we have to software animate for other reasons, 85 // such as a child using inheriting the transform. https://bugs.webkit.org/show_bug.cgi?id=23902 86 if (!needsAnim) 87 // If we are running an accelerated animation, set a flag in the style which causes the style 88 // to compare as different to any other style. This ensures that changes to the property 89 // that is animating are correctly detected during the animation (e.g. when a transition 90 // gets interrupted). 91 animatedStyle->setIsRunningAcceleratedAnimation(); 92 93 // Fire the start timeout if needed 94 fireAnimationEventsIfNeeded(); 95 } 96 97 void ImplicitAnimation::getAnimatedStyle(RefPtr<RenderStyle>& animatedStyle) 98 { 99 if (!animatedStyle) 100 animatedStyle = RenderStyle::clone(m_toStyle.get()); 101 102 CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress(1, 0, 0)); 103 } 104 105 void ImplicitAnimation::startAnimation(double timeOffset) 106 { 107 if (m_object && m_object->compositingState() == PaintsIntoOwnBacking) 108 m_isAccelerated = toRenderBoxModelObject(m_object)->startTransition(timeOffset, m_animatingProperty, m_fromStyle.get(), m_toStyle.get()); 109 } 110 111 void ImplicitAnimation::pauseAnimation(double timeOffset) 112 { 113 if (!m_object) 114 return; 115 116 if (m_object && m_object->compositingState() == PaintsIntoOwnBacking && isAccelerated()) 117 toRenderBoxModelObject(m_object)->transitionPaused(timeOffset, m_animatingProperty); 118 119 // Restore the original (unanimated) style 120 if (!paused()) 121 setNeedsStyleRecalc(m_object->node()); 122 } 123 124 void ImplicitAnimation::endAnimation() 125 { 126 if (m_object && m_object->compositingState() == PaintsIntoOwnBacking && isAccelerated()) 127 toRenderBoxModelObject(m_object)->transitionFinished(m_animatingProperty); 128 m_isAccelerated = false; 129 } 130 131 void ImplicitAnimation::onAnimationEnd(double elapsedTime) 132 { 133 // If we have a keyframe animation on this property, this transition is being overridden. The keyframe 134 // animation keeps an unanimated style in case a transition starts while the keyframe animation is 135 // running. But now that the transition has completed, we need to update this style with its new 136 // destination. If we didn't, the next time through we would think a transition had started 137 // (comparing the old unanimated style with the new final style of the transition). 138 RefPtr<KeyframeAnimation> keyframeAnim = m_compAnim->getAnimationForProperty(m_animatingProperty); 139 if (keyframeAnim) 140 keyframeAnim->setUnanimatedStyle(m_toStyle); 141 142 sendTransitionEvent(EventTypeNames::transitionend, elapsedTime); 143 endAnimation(); 144 } 145 146 bool ImplicitAnimation::sendTransitionEvent(const AtomicString& eventType, double elapsedTime) 147 { 148 if (eventType == EventTypeNames::transitionend) { 149 Document::ListenerType listenerType = Document::TRANSITIONEND_LISTENER; 150 151 if (shouldSendEventForListener(listenerType)) { 152 String propertyName = getPropertyNameString(m_animatingProperty); 153 154 // Dispatch the event 155 RefPtr<Element> element = 0; 156 if (m_object->node() && m_object->node()->isElementNode()) 157 element = toElement(m_object->node()); 158 159 if (!element) 160 return false; 161 162 // Schedule event handling 163 m_compAnim->animationController()->addEventToDispatch(element, eventType, propertyName, elapsedTime); 164 165 // Restore the original (unanimated) style 166 if (eventType == EventTypeNames::transitionend && element->renderer()) 167 setNeedsStyleRecalc(element.get()); 168 169 return true; // Did dispatch an event 170 } 171 } 172 173 return false; // Didn't dispatch an event 174 } 175 176 void ImplicitAnimation::reset(RenderStyle* to) 177 { 178 ASSERT(to); 179 ASSERT(m_fromStyle); 180 181 m_toStyle = to; 182 183 // Restart the transition 184 if (m_fromStyle && m_toStyle) 185 updateStateMachine(AnimationStateInputRestartAnimation, -1); 186 187 // set the transform animation list 188 validateTransformFunctionList(); 189 checkForMatchingFilterFunctionLists(); 190 } 191 192 void ImplicitAnimation::setOverridden(bool b) 193 { 194 if (b == m_overridden) 195 return; 196 197 m_overridden = b; 198 updateStateMachine(m_overridden ? AnimationStateInputPauseOverride : AnimationStateInputResumeOverride, -1); 199 } 200 201 bool ImplicitAnimation::affectsProperty(CSSPropertyID property) const 202 { 203 return (m_animatingProperty == property); 204 } 205 206 bool ImplicitAnimation::isTargetPropertyEqual(CSSPropertyID prop, const RenderStyle* targetStyle) 207 { 208 // We can get here for a transition that has not started yet. This would make m_toStyle unset and null. 209 // So we check that here (see <https://bugs.webkit.org/show_bug.cgi?id=26706>) 210 if (!m_toStyle) 211 return false; 212 return CSSPropertyAnimation::propertiesEqual(prop, m_toStyle.get(), targetStyle); 213 } 214 215 void ImplicitAnimation::blendPropertyValueInStyle(CSSPropertyID prop, RenderStyle* currentStyle) 216 { 217 // We should never add a transition with a 0 duration and delay. But if we ever did 218 // it would have a null toStyle. So just in case, let's check that here. (See 219 // <https://bugs.webkit.org/show_bug.cgi?id=24787> 220 if (!m_toStyle) 221 return; 222 223 CSSPropertyAnimation::blendProperties(this, prop, currentStyle, m_fromStyle.get(), m_toStyle.get(), progress(1, 0, 0)); 224 } 225 226 void ImplicitAnimation::validateTransformFunctionList() 227 { 228 m_transformFunctionListValid = false; 229 230 if (!m_fromStyle || !m_toStyle) 231 return; 232 233 const TransformOperations* val = &m_fromStyle->transform(); 234 const TransformOperations* toVal = &m_toStyle->transform(); 235 236 if (val->operations().isEmpty()) 237 val = toVal; 238 239 if (val->operations().isEmpty()) 240 return; 241 242 // An emtpy transform list matches anything. 243 if (val != toVal && !toVal->operations().isEmpty() && !val->operationsMatch(*toVal)) 244 return; 245 246 // Transform lists match. 247 m_transformFunctionListValid = true; 248 } 249 250 void ImplicitAnimation::checkForMatchingFilterFunctionLists() 251 { 252 m_filterFunctionListsMatch = false; 253 254 if (!m_fromStyle || !m_toStyle) 255 return; 256 257 const FilterOperations* val = &m_fromStyle->filter(); 258 const FilterOperations* toVal = &m_toStyle->filter(); 259 260 if (!val->canInterpolateWith(*toVal)) 261 return; 262 263 // Filter lists match. 264 m_filterFunctionListsMatch = true; 265 } 266 267 double ImplicitAnimation::timeToNextService() 268 { 269 double t = AnimationBase::timeToNextService(); 270 if (t != 0 || preActive()) 271 return t; 272 273 // A return value of 0 means we need service. But if this is an accelerated animation we 274 // only need service at the end of the transition. 275 if (CSSPropertyAnimation::animationOfPropertyIsAccelerated(m_animatingProperty) && isAccelerated()) { 276 bool isLooping; 277 getTimeToNextEvent(t, isLooping); 278 } 279 280 return t; 281 } 282 283 } // namespace WebCore 284
