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| 1 /* | |
| 2 * Copyright (C) 2013 Google 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "core/animation/AnimationNode.h" | |
| 33 | |
| 34 #include "core/animation/AnimationNodeTiming.h" | |
| 35 #include "core/animation/AnimationPlayer.h" | |
| 36 #include "core/animation/ComputedTimingProperties.h" | |
| 37 #include "core/animation/TimingCalculations.h" | |
| 38 | |
| 39 namespace blink { | |
| 40 | |
| 41 namespace { | |
| 42 | |
| 43 Timing::FillMode resolvedFillMode(Timing::FillMode fillMode, bool isAnimation) | |
| 44 { | |
| 45 if (fillMode != Timing::FillModeAuto) | |
| 46 return fillMode; | |
| 47 if (isAnimation) | |
| 48 return Timing::FillModeNone; | |
| 49 return Timing::FillModeBoth; | |
| 50 } | |
| 51 | |
| 52 } // namespace | |
| 53 | |
| 54 AnimationNode::AnimationNode(const Timing& timing, PassOwnPtrWillBeRawPtr<EventD
elegate> eventDelegate) | |
| 55 : m_parent(nullptr) | |
| 56 , m_startTime(0) | |
| 57 , m_player(nullptr) | |
| 58 , m_timing(timing) | |
| 59 , m_eventDelegate(eventDelegate) | |
| 60 , m_calculated() | |
| 61 , m_needsUpdate(true) | |
| 62 , m_lastUpdateTime(nullValue()) | |
| 63 { | |
| 64 m_timing.assertValid(); | |
| 65 } | |
| 66 | |
| 67 double AnimationNode::iterationDuration() const | |
| 68 { | |
| 69 double result = std::isnan(m_timing.iterationDuration) ? intrinsicIterationD
uration() : m_timing.iterationDuration; | |
| 70 ASSERT(result >= 0); | |
| 71 return result; | |
| 72 } | |
| 73 | |
| 74 double AnimationNode::repeatedDuration() const | |
| 75 { | |
| 76 const double result = multiplyZeroAlwaysGivesZero(iterationDuration(), m_tim
ing.iterationCount); | |
| 77 ASSERT(result >= 0); | |
| 78 return result; | |
| 79 } | |
| 80 | |
| 81 double AnimationNode::activeDurationInternal() const | |
| 82 { | |
| 83 const double result = m_timing.playbackRate | |
| 84 ? repeatedDuration() / std::abs(m_timing.playbackRate) | |
| 85 : std::numeric_limits<double>::infinity(); | |
| 86 ASSERT(result >= 0); | |
| 87 return result; | |
| 88 } | |
| 89 | |
| 90 void AnimationNode::updateSpecifiedTiming(const Timing& timing) | |
| 91 { | |
| 92 // FIXME: Test whether the timing is actually different? | |
| 93 m_timing = timing; | |
| 94 invalidate(); | |
| 95 if (m_player) | |
| 96 m_player->setOutdated(); | |
| 97 specifiedTimingChanged(); | |
| 98 } | |
| 99 | |
| 100 void AnimationNode::computedTiming(ComputedTimingProperties& computedTiming) | |
| 101 { | |
| 102 // ComputedTimingProperties members. | |
| 103 computedTiming.setStartTime(startTimeInternal() * 1000); | |
| 104 computedTiming.setEndTime(endTimeInternal() * 1000); | |
| 105 computedTiming.setActiveDuration(activeDurationInternal() * 1000); | |
| 106 | |
| 107 // FIXME: These should be null if not in effect, but current dictionary API | |
| 108 // will treat these as undefined. | |
| 109 if (ensureCalculated().isInEffect) { | |
| 110 computedTiming.setLocalTime(ensureCalculated().localTime * 1000); | |
| 111 computedTiming.setTimeFraction(ensureCalculated().timeFraction); | |
| 112 computedTiming.setCurrentIteration(ensureCalculated().currentIteration); | |
| 113 } | |
| 114 | |
| 115 // AnimationTimingProperties members. | |
| 116 computedTiming.setDelay(specifiedTiming().startDelay * 1000); | |
| 117 computedTiming.setEndDelay(specifiedTiming().endDelay * 1000); | |
| 118 computedTiming.setFill(Timing::fillModeString(resolvedFillMode(specifiedTimi
ng().fillMode, isAnimation()))); | |
| 119 computedTiming.setIterationStart(specifiedTiming().iterationStart); | |
| 120 computedTiming.setIterations(specifiedTiming().iterationCount); | |
| 121 | |
| 122 UnrestrictedDoubleOrString duration; | |
| 123 duration.setUnrestrictedDouble(iterationDuration() * 1000); | |
| 124 computedTiming.setDuration(duration); | |
| 125 | |
| 126 computedTiming.setPlaybackRate(specifiedTiming().playbackRate); | |
| 127 computedTiming.setDirection(Timing::playbackDirectionString(specifiedTiming(
).direction)); | |
| 128 computedTiming.setEasing(specifiedTiming().timingFunction->toString()); | |
| 129 } | |
| 130 | |
| 131 ComputedTimingProperties AnimationNode::computedTiming() | |
| 132 { | |
| 133 ComputedTimingProperties result; | |
| 134 computedTiming(result); | |
| 135 return result; | |
| 136 } | |
| 137 | |
| 138 | |
| 139 void AnimationNode::updateInheritedTime(double inheritedTime, TimingUpdateReason
reason) const | |
| 140 { | |
| 141 bool needsUpdate = m_needsUpdate || (m_lastUpdateTime != inheritedTime && !(
isNull(m_lastUpdateTime) && isNull(inheritedTime))); | |
| 142 m_needsUpdate = false; | |
| 143 m_lastUpdateTime = inheritedTime; | |
| 144 | |
| 145 const double localTime = inheritedTime - m_startTime; | |
| 146 double timeToNextIteration = std::numeric_limits<double>::infinity(); | |
| 147 if (needsUpdate) { | |
| 148 const double activeDuration = this->activeDurationInternal(); | |
| 149 | |
| 150 const Phase currentPhase = calculatePhase(activeDuration, localTime, m_t
iming); | |
| 151 // FIXME: parentPhase depends on groups being implemented. | |
| 152 const AnimationNode::Phase parentPhase = AnimationNode::PhaseActive; | |
| 153 const double activeTime = calculateActiveTime(activeDuration, resolvedFi
llMode(m_timing.fillMode, isAnimation()), localTime, parentPhase, currentPhase,
m_timing); | |
| 154 | |
| 155 double currentIteration; | |
| 156 double timeFraction; | |
| 157 if (const double iterationDuration = this->iterationDuration()) { | |
| 158 const double startOffset = multiplyZeroAlwaysGivesZero(m_timing.iter
ationStart, iterationDuration); | |
| 159 ASSERT(startOffset >= 0); | |
| 160 const double scaledActiveTime = calculateScaledActiveTime(activeDura
tion, activeTime, startOffset, m_timing); | |
| 161 const double iterationTime = calculateIterationTime(iterationDuratio
n, repeatedDuration(), scaledActiveTime, startOffset, m_timing); | |
| 162 | |
| 163 currentIteration = calculateCurrentIteration(iterationDuration, iter
ationTime, scaledActiveTime, m_timing); | |
| 164 timeFraction = calculateTransformedTime(currentIteration, iterationD
uration, iterationTime, m_timing) / iterationDuration; | |
| 165 | |
| 166 if (!isNull(iterationTime)) { | |
| 167 timeToNextIteration = (iterationDuration - iterationTime) / std:
:abs(m_timing.playbackRate); | |
| 168 if (activeDuration - activeTime < timeToNextIteration) | |
| 169 timeToNextIteration = std::numeric_limits<double>::infinity(
); | |
| 170 } | |
| 171 } else { | |
| 172 const double localIterationDuration = 1; | |
| 173 const double localRepeatedDuration = localIterationDuration * m_timi
ng.iterationCount; | |
| 174 ASSERT(localRepeatedDuration >= 0); | |
| 175 const double localActiveDuration = m_timing.playbackRate ? localRepe
atedDuration / std::abs(m_timing.playbackRate) : std::numeric_limits<double>::in
finity(); | |
| 176 ASSERT(localActiveDuration >= 0); | |
| 177 const double localLocalTime = localTime < m_timing.startDelay ? loca
lTime : localActiveDuration + m_timing.startDelay; | |
| 178 const AnimationNode::Phase localCurrentPhase = calculatePhase(localA
ctiveDuration, localLocalTime, m_timing); | |
| 179 const double localActiveTime = calculateActiveTime(localActiveDurati
on, resolvedFillMode(m_timing.fillMode, isAnimation()), localLocalTime, parentPh
ase, localCurrentPhase, m_timing); | |
| 180 const double startOffset = m_timing.iterationStart * localIterationD
uration; | |
| 181 ASSERT(startOffset >= 0); | |
| 182 const double scaledActiveTime = calculateScaledActiveTime(localActiv
eDuration, localActiveTime, startOffset, m_timing); | |
| 183 const double iterationTime = calculateIterationTime(localIterationDu
ration, localRepeatedDuration, scaledActiveTime, startOffset, m_timing); | |
| 184 | |
| 185 currentIteration = calculateCurrentIteration(localIterationDuration,
iterationTime, scaledActiveTime, m_timing); | |
| 186 timeFraction = calculateTransformedTime(currentIteration, localItera
tionDuration, iterationTime, m_timing); | |
| 187 } | |
| 188 | |
| 189 m_calculated.currentIteration = currentIteration; | |
| 190 m_calculated.timeFraction = timeFraction; | |
| 191 | |
| 192 m_calculated.phase = currentPhase; | |
| 193 m_calculated.isInEffect = !isNull(activeTime); | |
| 194 m_calculated.isInPlay = phase() == PhaseActive && (!m_parent || m_parent
->isInPlay()); | |
| 195 m_calculated.isCurrent = phase() == PhaseBefore || isInPlay() || (m_pare
nt && m_parent->isCurrent()); | |
| 196 m_calculated.localTime = m_lastUpdateTime - m_startTime; | |
| 197 } | |
| 198 | |
| 199 // Test for events even if timing didn't need an update as the player may ha
ve gained a start time. | |
| 200 // FIXME: Refactor so that we can ASSERT(m_player) here, this is currently r
equired to be nullable for testing. | |
| 201 if (reason == TimingUpdateForAnimationFrame && (!m_player || m_player->hasSt
artTime() || m_player->paused())) { | |
| 202 if (m_eventDelegate) | |
| 203 m_eventDelegate->onEventCondition(*this); | |
| 204 } | |
| 205 | |
| 206 if (needsUpdate) { | |
| 207 // FIXME: This probably shouldn't be recursive. | |
| 208 updateChildrenAndEffects(); | |
| 209 m_calculated.timeToForwardsEffectChange = calculateTimeToEffectChange(tr
ue, localTime, timeToNextIteration); | |
| 210 m_calculated.timeToReverseEffectChange = calculateTimeToEffectChange(fal
se, localTime, timeToNextIteration); | |
| 211 } | |
| 212 } | |
| 213 | |
| 214 const AnimationNode::CalculatedTiming& AnimationNode::ensureCalculated() const | |
| 215 { | |
| 216 if (!m_player) | |
| 217 return m_calculated; | |
| 218 if (m_player->outdated()) | |
| 219 m_player->update(TimingUpdateOnDemand); | |
| 220 ASSERT(!m_player->outdated()); | |
| 221 return m_calculated; | |
| 222 } | |
| 223 | |
| 224 PassRefPtrWillBeRawPtr<AnimationNodeTiming> AnimationNode::timing() | |
| 225 { | |
| 226 return AnimationNodeTiming::create(this); | |
| 227 } | |
| 228 | |
| 229 DEFINE_TRACE(AnimationNode) | |
| 230 { | |
| 231 visitor->trace(m_parent); | |
| 232 visitor->trace(m_player); | |
| 233 visitor->trace(m_eventDelegate); | |
| 234 } | |
| 235 | |
| 236 } // namespace blink | |
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Chromium Code Reviews
Issue 1113173003:
Web Animations: Update naming to reflect spec changes (Closed)
Base URL: svn://svn.chromium.org/blink/trunk