mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
8c171ff8b2
This patch introduces a method GetComputedTiming that calls GetComputedTimingAt supplying the current time of the animation's timeline. We still keep the GetComputedTimingAt static method since it is used for off-main thread animation. Furthermore, we keep the second argument to GetComputedTiming--the animation's timing properties--since on some occasions we want to override those properties (ElementPropertyTransition::ValuePortionFor does this). We could also add another overload that also supplies the animation's timing properties but that can happen as a separate step.
1070 lines
35 KiB
C++
1070 lines
35 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "AnimationCommon.h"
|
|
#include "nsTransitionManager.h"
|
|
#include "nsAnimationManager.h"
|
|
|
|
#include "mozilla/dom/AnimationPlayerBinding.h"
|
|
#include "ActiveLayerTracker.h"
|
|
#include "gfxPlatform.h"
|
|
#include "nsRuleData.h"
|
|
#include "nsCSSPropertySet.h"
|
|
#include "nsCSSValue.h"
|
|
#include "nsCycleCollectionParticipant.h"
|
|
#include "nsStyleContext.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsLayoutUtils.h"
|
|
#include "mozilla/LookAndFeel.h"
|
|
#include "Layers.h"
|
|
#include "FrameLayerBuilder.h"
|
|
#include "nsDisplayList.h"
|
|
#include "mozilla/MemoryReporting.h"
|
|
#include "RestyleManager.h"
|
|
#include "nsStyleSet.h"
|
|
#include "nsStyleChangeList.h"
|
|
|
|
|
|
using mozilla::layers::Layer;
|
|
|
|
namespace mozilla {
|
|
|
|
/* static */ bool
|
|
IsGeometricProperty(nsCSSProperty aProperty)
|
|
{
|
|
switch (aProperty) {
|
|
case eCSSProperty_bottom:
|
|
case eCSSProperty_height:
|
|
case eCSSProperty_left:
|
|
case eCSSProperty_right:
|
|
case eCSSProperty_top:
|
|
case eCSSProperty_width:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
namespace css {
|
|
|
|
CommonAnimationManager::CommonAnimationManager(nsPresContext *aPresContext)
|
|
: mPresContext(aPresContext)
|
|
{
|
|
PR_INIT_CLIST(&mElementCollections);
|
|
}
|
|
|
|
CommonAnimationManager::~CommonAnimationManager()
|
|
{
|
|
NS_ABORT_IF_FALSE(!mPresContext, "Disconnect should have been called");
|
|
}
|
|
|
|
void
|
|
CommonAnimationManager::Disconnect()
|
|
{
|
|
// Content nodes might outlive the transition or animation manager.
|
|
RemoveAllElementCollections();
|
|
|
|
mPresContext = nullptr;
|
|
}
|
|
|
|
void
|
|
CommonAnimationManager::RemoveAllElementCollections()
|
|
{
|
|
while (!PR_CLIST_IS_EMPTY(&mElementCollections)) {
|
|
ElementAnimationCollection* head =
|
|
static_cast<ElementAnimationCollection*>(
|
|
PR_LIST_HEAD(&mElementCollections));
|
|
head->Destroy();
|
|
}
|
|
}
|
|
|
|
ElementAnimationCollection*
|
|
CommonAnimationManager::GetAnimationsForCompositor(nsIContent* aContent,
|
|
nsIAtom* aElementProperty,
|
|
nsCSSProperty aProperty)
|
|
{
|
|
if (!aContent->MayHaveAnimations())
|
|
return nullptr;
|
|
ElementAnimationCollection* collection =
|
|
static_cast<ElementAnimationCollection*>(
|
|
aContent->GetProperty(aElementProperty));
|
|
if (!collection ||
|
|
!collection->HasAnimationOfProperty(aProperty) ||
|
|
!collection->CanPerformOnCompositorThread(
|
|
ElementAnimationCollection::CanAnimate_AllowPartial)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// This animation can be done on the compositor.
|
|
// Mark the frame as active, in case we are able to throttle this animation.
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(collection->mElement);
|
|
if (frame) {
|
|
if (aProperty == eCSSProperty_opacity) {
|
|
ActiveLayerTracker::NotifyAnimated(frame, eCSSProperty_opacity);
|
|
} else if (aProperty == eCSSProperty_transform) {
|
|
ActiveLayerTracker::NotifyAnimated(frame, eCSSProperty_transform);
|
|
}
|
|
}
|
|
|
|
return collection;
|
|
}
|
|
|
|
/*
|
|
* nsISupports implementation
|
|
*/
|
|
|
|
NS_IMPL_ISUPPORTS(CommonAnimationManager, nsIStyleRuleProcessor)
|
|
|
|
nsRestyleHint
|
|
CommonAnimationManager::HasStateDependentStyle(StateRuleProcessorData* aData)
|
|
{
|
|
return nsRestyleHint(0);
|
|
}
|
|
|
|
nsRestyleHint
|
|
CommonAnimationManager::HasStateDependentStyle(PseudoElementStateRuleProcessorData* aData)
|
|
{
|
|
return nsRestyleHint(0);
|
|
}
|
|
|
|
bool
|
|
CommonAnimationManager::HasDocumentStateDependentStyle(StateRuleProcessorData* aData)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
nsRestyleHint
|
|
CommonAnimationManager::HasAttributeDependentStyle(AttributeRuleProcessorData* aData)
|
|
{
|
|
return nsRestyleHint(0);
|
|
}
|
|
|
|
/* virtual */ bool
|
|
CommonAnimationManager::MediumFeaturesChanged(nsPresContext* aPresContext)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/* virtual */ size_t
|
|
CommonAnimationManager::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
// Measurement of the following members may be added later if DMD finds it is
|
|
// worthwhile:
|
|
// - mElementCollections
|
|
//
|
|
// The following members are not measured
|
|
// - mPresContext, because it's non-owning
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* virtual */ size_t
|
|
CommonAnimationManager::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
/* static */ bool
|
|
CommonAnimationManager::ExtractComputedValueForTransition(
|
|
nsCSSProperty aProperty,
|
|
nsStyleContext* aStyleContext,
|
|
StyleAnimationValue& aComputedValue)
|
|
{
|
|
bool result = StyleAnimationValue::ExtractComputedValue(aProperty,
|
|
aStyleContext,
|
|
aComputedValue);
|
|
if (aProperty == eCSSProperty_visibility) {
|
|
NS_ABORT_IF_FALSE(aComputedValue.GetUnit() ==
|
|
StyleAnimationValue::eUnit_Enumerated,
|
|
"unexpected unit");
|
|
aComputedValue.SetIntValue(aComputedValue.GetIntValue(),
|
|
StyleAnimationValue::eUnit_Visibility);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
already_AddRefed<nsStyleContext>
|
|
CommonAnimationManager::ReparentContent(nsIContent* aContent,
|
|
nsStyleContext* aParentStyle)
|
|
{
|
|
nsStyleSet* styleSet = mPresContext->PresShell()->StyleSet();
|
|
nsIFrame* primaryFrame = nsLayoutUtils::GetStyleFrame(aContent);
|
|
if (!primaryFrame) {
|
|
return nullptr;
|
|
}
|
|
|
|
dom::Element* element = aContent->IsElement()
|
|
? aContent->AsElement()
|
|
: nullptr;
|
|
|
|
nsRefPtr<nsStyleContext> newStyle =
|
|
styleSet->ReparentStyleContext(primaryFrame->StyleContext(),
|
|
aParentStyle, element);
|
|
primaryFrame->SetStyleContext(newStyle);
|
|
ReparentBeforeAndAfter(element, primaryFrame, newStyle, styleSet);
|
|
|
|
return newStyle.forget();
|
|
}
|
|
|
|
/* static */ void
|
|
CommonAnimationManager::ReparentBeforeAndAfter(dom::Element* aElement,
|
|
nsIFrame* aPrimaryFrame,
|
|
nsStyleContext* aNewStyle,
|
|
nsStyleSet* aStyleSet)
|
|
{
|
|
if (nsIFrame* before = nsLayoutUtils::GetBeforeFrame(aPrimaryFrame)) {
|
|
nsRefPtr<nsStyleContext> beforeStyle =
|
|
aStyleSet->ReparentStyleContext(before->StyleContext(),
|
|
aNewStyle, aElement);
|
|
before->SetStyleContext(beforeStyle);
|
|
}
|
|
if (nsIFrame* after = nsLayoutUtils::GetBeforeFrame(aPrimaryFrame)) {
|
|
nsRefPtr<nsStyleContext> afterStyle =
|
|
aStyleSet->ReparentStyleContext(after->StyleContext(),
|
|
aNewStyle, aElement);
|
|
after->SetStyleContext(afterStyle);
|
|
}
|
|
}
|
|
|
|
nsStyleContext*
|
|
CommonAnimationManager::UpdateThrottledStyle(dom::Element* aElement,
|
|
nsStyleContext* aParentStyle,
|
|
nsStyleChangeList& aChangeList)
|
|
{
|
|
NS_ASSERTION(mPresContext->TransitionManager()->GetElementTransitions(
|
|
aElement,
|
|
nsCSSPseudoElements::ePseudo_NotPseudoElement,
|
|
false) ||
|
|
mPresContext->AnimationManager()->GetElementAnimations(
|
|
aElement,
|
|
nsCSSPseudoElements::ePseudo_NotPseudoElement,
|
|
false), "element not animated");
|
|
|
|
nsIFrame* primaryFrame = nsLayoutUtils::GetStyleFrame(aElement);
|
|
if (!primaryFrame) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsStyleContext* oldStyle = primaryFrame->StyleContext();
|
|
nsRuleNode* ruleNode = oldStyle->RuleNode();
|
|
nsTArray<nsStyleSet::RuleAndLevel> rules;
|
|
do {
|
|
if (ruleNode->IsRoot()) {
|
|
break;
|
|
}
|
|
|
|
nsStyleSet::RuleAndLevel curRule;
|
|
curRule.mLevel = ruleNode->GetLevel();
|
|
|
|
if (curRule.mLevel == nsStyleSet::eAnimationSheet) {
|
|
ElementAnimationCollection* collection =
|
|
mPresContext->AnimationManager()->GetElementAnimations(
|
|
aElement,
|
|
oldStyle->GetPseudoType(),
|
|
false);
|
|
NS_ASSERTION(collection,
|
|
"Rule has level eAnimationSheet without animation on manager");
|
|
|
|
mPresContext->AnimationManager()->UpdateStyleAndEvents(
|
|
collection, mPresContext->RefreshDriver()->MostRecentRefresh(),
|
|
EnsureStyleRule_IsNotThrottled);
|
|
curRule.mRule = collection->mStyleRule;
|
|
} else if (curRule.mLevel == nsStyleSet::eTransitionSheet) {
|
|
ElementAnimationCollection* collection =
|
|
mPresContext->TransitionManager()->GetElementTransitions(
|
|
aElement,
|
|
oldStyle->GetPseudoType(),
|
|
false);
|
|
NS_ASSERTION(collection,
|
|
"Rule has level eTransitionSheet without transition on manager");
|
|
|
|
collection->EnsureStyleRuleFor(
|
|
mPresContext->RefreshDriver()->MostRecentRefresh(),
|
|
EnsureStyleRule_IsNotThrottled);
|
|
curRule.mRule = collection->mStyleRule;
|
|
} else {
|
|
curRule.mRule = ruleNode->GetRule();
|
|
}
|
|
|
|
if (curRule.mRule) {
|
|
rules.AppendElement(curRule);
|
|
}
|
|
} while ((ruleNode = ruleNode->GetParent()));
|
|
|
|
nsRefPtr<nsStyleContext> newStyle = mPresContext->PresShell()->StyleSet()->
|
|
ResolveStyleForRules(aParentStyle, oldStyle, rules);
|
|
|
|
// We absolutely must call CalcStyleDifference in order to ensure the
|
|
// new context has all the structs cached that the old context had.
|
|
// We also need it for processing of the changes.
|
|
nsChangeHint styleChange =
|
|
oldStyle->CalcStyleDifference(newStyle, nsChangeHint(0));
|
|
aChangeList.AppendChange(primaryFrame, primaryFrame->GetContent(),
|
|
styleChange);
|
|
|
|
primaryFrame->SetStyleContext(newStyle);
|
|
|
|
ReparentBeforeAndAfter(aElement, primaryFrame, newStyle,
|
|
mPresContext->PresShell()->StyleSet());
|
|
|
|
return newStyle;
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(AnimValuesStyleRule, nsIStyleRule)
|
|
|
|
/* virtual */ void
|
|
AnimValuesStyleRule::MapRuleInfoInto(nsRuleData* aRuleData)
|
|
{
|
|
nsStyleContext *contextParent = aRuleData->mStyleContext->GetParent();
|
|
if (contextParent && contextParent->HasPseudoElementData()) {
|
|
// Don't apply transitions or animations to things inside of
|
|
// pseudo-elements.
|
|
// FIXME (Bug 522599): Add tests for this.
|
|
return;
|
|
}
|
|
|
|
for (uint32_t i = 0, i_end = mPropertyValuePairs.Length(); i < i_end; ++i) {
|
|
PropertyValuePair &cv = mPropertyValuePairs[i];
|
|
if (aRuleData->mSIDs & nsCachedStyleData::GetBitForSID(
|
|
nsCSSProps::kSIDTable[cv.mProperty]))
|
|
{
|
|
nsCSSValue *prop = aRuleData->ValueFor(cv.mProperty);
|
|
if (prop->GetUnit() == eCSSUnit_Null) {
|
|
#ifdef DEBUG
|
|
bool ok =
|
|
#endif
|
|
StyleAnimationValue::UncomputeValue(cv.mProperty, cv.mValue, *prop);
|
|
NS_ABORT_IF_FALSE(ok, "could not store computed value");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */ void
|
|
AnimValuesStyleRule::List(FILE* out, int32_t aIndent) const
|
|
{
|
|
for (int32_t index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
fputs("[anim values] { ", out);
|
|
for (uint32_t i = 0, i_end = mPropertyValuePairs.Length(); i < i_end; ++i) {
|
|
const PropertyValuePair &pair = mPropertyValuePairs[i];
|
|
nsAutoString value;
|
|
StyleAnimationValue::UncomputeValue(pair.mProperty, pair.mValue, value);
|
|
fprintf(out, "%s: %s; ", nsCSSProps::GetStringValue(pair.mProperty).get(),
|
|
NS_ConvertUTF16toUTF8(value).get());
|
|
}
|
|
fputs("}\n", out);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
ComputedTimingFunction::Init(const nsTimingFunction &aFunction)
|
|
{
|
|
mType = aFunction.mType;
|
|
if (mType == nsTimingFunction::Function) {
|
|
mTimingFunction.Init(aFunction.mFunc.mX1, aFunction.mFunc.mY1,
|
|
aFunction.mFunc.mX2, aFunction.mFunc.mY2);
|
|
} else {
|
|
mSteps = aFunction.mSteps;
|
|
}
|
|
}
|
|
|
|
static inline double
|
|
StepEnd(uint32_t aSteps, double aPortion)
|
|
{
|
|
NS_ABORT_IF_FALSE(0.0 <= aPortion && aPortion <= 1.0, "out of range");
|
|
uint32_t step = uint32_t(aPortion * aSteps); // floor
|
|
return double(step) / double(aSteps);
|
|
}
|
|
|
|
double
|
|
ComputedTimingFunction::GetValue(double aPortion) const
|
|
{
|
|
switch (mType) {
|
|
case nsTimingFunction::Function:
|
|
return mTimingFunction.GetSplineValue(aPortion);
|
|
case nsTimingFunction::StepStart:
|
|
// There are diagrams in the spec that seem to suggest this check
|
|
// and the bounds point should not be symmetric with StepEnd, but
|
|
// should actually step up at rather than immediately after the
|
|
// fraction points. However, we rely on rounding negative values
|
|
// up to zero, so we can't do that. And it's not clear the spec
|
|
// really meant it.
|
|
return 1.0 - StepEnd(mSteps, 1.0 - aPortion);
|
|
default:
|
|
NS_ABORT_IF_FALSE(false, "bad type");
|
|
// fall through
|
|
case nsTimingFunction::StepEnd:
|
|
return StepEnd(mSteps, aPortion);
|
|
}
|
|
}
|
|
|
|
} /* end sub-namespace css */
|
|
|
|
// In the Web Animations model, the time fraction can be outside the range
|
|
// [0.0, 1.0] but it shouldn't be Infinity.
|
|
const double ComputedTiming::kNullTimeFraction =
|
|
mozilla::PositiveInfinity<double>();
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(ElementAnimation, mTimeline)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(ElementAnimation, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(ElementAnimation, Release)
|
|
|
|
JSObject*
|
|
ElementAnimation::WrapObject(JSContext* aCx)
|
|
{
|
|
return dom::AnimationPlayerBinding::Wrap(aCx, this);
|
|
}
|
|
|
|
double
|
|
ElementAnimation::StartTime() const
|
|
{
|
|
Nullable<double> startTime = mTimeline->ToTimelineTime(mStartTime);
|
|
return startTime.IsNull() ? 0.0 : startTime.Value();
|
|
}
|
|
|
|
double
|
|
ElementAnimation::CurrentTime() const
|
|
{
|
|
// In Web Animations, AnimationPlayers have a *current* time and Animations
|
|
// have a *local* time. However, since we have a 1:1 correspondence between
|
|
// AnimationPlayers and Animations, and since the startTime of *Animations*
|
|
// (but not AnimationPlayers) is always 0, these are currently identical.
|
|
Nullable<TimeDuration> currentTime = GetLocalTime();
|
|
|
|
// The current time is currently only going to be null when don't have a
|
|
// refresh driver (e.g. because we are in a display:none iframe).
|
|
//
|
|
// Web Animations says that in this case we should use a timeline time of
|
|
// 0 (the "effective timeline time") and calculate the current time from that.
|
|
// Doing that, however, requires storing the start time as an offset rather
|
|
// than a timestamp so for now we just return 0.
|
|
//
|
|
// FIXME: Store player start time and pause start as offsets rather than
|
|
// timestamps and return the appropriate current time when the timeline time
|
|
// is null.
|
|
if (currentTime.IsNull()) {
|
|
return 0.0;
|
|
}
|
|
|
|
return currentTime.Value().ToMilliseconds();
|
|
}
|
|
|
|
bool
|
|
ElementAnimation::IsRunning() const
|
|
{
|
|
if (IsPaused() || IsFinishedTransition()) {
|
|
return false;
|
|
}
|
|
|
|
ComputedTiming computedTiming = GetComputedTiming(mTiming);
|
|
return computedTiming.mPhase == ComputedTiming::AnimationPhase_Active;
|
|
}
|
|
|
|
bool
|
|
ElementAnimation::IsCurrent() const
|
|
{
|
|
if (IsFinishedTransition()) {
|
|
return false;
|
|
}
|
|
|
|
ComputedTiming computedTiming = GetComputedTiming(mTiming);
|
|
return computedTiming.mPhase == ComputedTiming::AnimationPhase_Before ||
|
|
computedTiming.mPhase == ComputedTiming::AnimationPhase_Active;
|
|
}
|
|
|
|
bool
|
|
ElementAnimation::HasAnimationOfProperty(nsCSSProperty aProperty) const
|
|
{
|
|
for (uint32_t propIdx = 0, propEnd = mProperties.Length();
|
|
propIdx != propEnd; ++propIdx) {
|
|
if (aProperty == mProperties[propIdx].mProperty) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
ComputedTiming
|
|
ElementAnimation::GetComputedTimingAt(const Nullable<TimeDuration>& aLocalTime,
|
|
const AnimationTiming& aTiming)
|
|
{
|
|
const TimeDuration zeroDuration;
|
|
|
|
// Currently we expect negative durations to be picked up during CSS
|
|
// parsing but when we start receiving timing parameters from other sources
|
|
// we will need to clamp negative durations here.
|
|
// For now, if we're hitting this it probably means we're overflowing
|
|
// integer arithmetic in mozilla::TimeStamp.
|
|
MOZ_ASSERT(aTiming.mIterationDuration >= zeroDuration,
|
|
"Expecting iteration duration >= 0");
|
|
|
|
// Always return the same object to benefit from return-value optimization.
|
|
ComputedTiming result;
|
|
|
|
result.mActiveDuration = ActiveDuration(aTiming);
|
|
|
|
// The default constructor for ComputedTiming sets all other members to
|
|
// values consistent with an animation that has not been sampled.
|
|
if (aLocalTime.IsNull()) {
|
|
return result;
|
|
}
|
|
const TimeDuration& localTime = aLocalTime.Value();
|
|
|
|
// When we finish exactly at the end of an iteration we need to report
|
|
// the end of the final iteration and not the start of the next iteration
|
|
// so we set up a flag for that case.
|
|
bool isEndOfFinalIteration = false;
|
|
|
|
// Get the normalized time within the active interval.
|
|
TimeDuration activeTime;
|
|
if (localTime >= aTiming.mDelay + result.mActiveDuration) {
|
|
result.mPhase = ComputedTiming::AnimationPhase_After;
|
|
if (!aTiming.FillsForwards()) {
|
|
// The animation isn't active or filling at this time.
|
|
result.mTimeFraction = ComputedTiming::kNullTimeFraction;
|
|
return result;
|
|
}
|
|
activeTime = result.mActiveDuration;
|
|
// Note that infinity == floor(infinity) so this will also be true when we
|
|
// have finished an infinitely repeating animation of zero duration.
|
|
isEndOfFinalIteration =
|
|
aTiming.mIterationCount != 0.0 &&
|
|
aTiming.mIterationCount == floor(aTiming.mIterationCount);
|
|
} else if (localTime < aTiming.mDelay) {
|
|
result.mPhase = ComputedTiming::AnimationPhase_Before;
|
|
if (!aTiming.FillsBackwards()) {
|
|
// The animation isn't active or filling at this time.
|
|
result.mTimeFraction = ComputedTiming::kNullTimeFraction;
|
|
return result;
|
|
}
|
|
// activeTime is zero
|
|
} else {
|
|
MOZ_ASSERT(result.mActiveDuration != zeroDuration,
|
|
"How can we be in the middle of a zero-duration interval?");
|
|
result.mPhase = ComputedTiming::AnimationPhase_Active;
|
|
activeTime = localTime - aTiming.mDelay;
|
|
}
|
|
|
|
// Get the position within the current iteration.
|
|
TimeDuration iterationTime;
|
|
if (aTiming.mIterationDuration != zeroDuration) {
|
|
iterationTime = isEndOfFinalIteration
|
|
? aTiming.mIterationDuration
|
|
: activeTime % aTiming.mIterationDuration;
|
|
} /* else, iterationTime is zero */
|
|
|
|
// Determine the 0-based index of the current iteration.
|
|
if (isEndOfFinalIteration) {
|
|
result.mCurrentIteration =
|
|
aTiming.mIterationCount == NS_IEEEPositiveInfinity()
|
|
? UINT64_MAX // FIXME: When we return this via the API we'll need
|
|
// to make sure it ends up being infinity.
|
|
: static_cast<uint64_t>(aTiming.mIterationCount) - 1;
|
|
} else if (activeTime == zeroDuration) {
|
|
// If the active time is zero we're either in the first iteration
|
|
// (including filling backwards) or we have finished an animation with an
|
|
// iteration duration of zero that is filling forwards (but we're not at
|
|
// the exact end of an iteration since we deal with that above).
|
|
result.mCurrentIteration =
|
|
result.mPhase == ComputedTiming::AnimationPhase_After
|
|
? static_cast<uint64_t>(aTiming.mIterationCount) // floor
|
|
: 0;
|
|
} else {
|
|
result.mCurrentIteration =
|
|
static_cast<uint64_t>(activeTime / aTiming.mIterationDuration); // floor
|
|
}
|
|
|
|
// Normalize the iteration time into a fraction of the iteration duration.
|
|
if (result.mPhase == ComputedTiming::AnimationPhase_Before) {
|
|
result.mTimeFraction = 0.0;
|
|
} else if (result.mPhase == ComputedTiming::AnimationPhase_After) {
|
|
result.mTimeFraction = isEndOfFinalIteration
|
|
? 1.0
|
|
: fmod(aTiming.mIterationCount, 1.0f);
|
|
} else {
|
|
// We are in the active phase so the iteration duration can't be zero.
|
|
MOZ_ASSERT(aTiming.mIterationDuration != zeroDuration,
|
|
"In the active phase of a zero-duration animation?");
|
|
result.mTimeFraction =
|
|
aTiming.mIterationDuration == TimeDuration::Forever()
|
|
? 0.0
|
|
: iterationTime / aTiming.mIterationDuration;
|
|
}
|
|
|
|
bool thisIterationReverse = false;
|
|
switch (aTiming.mDirection) {
|
|
case NS_STYLE_ANIMATION_DIRECTION_NORMAL:
|
|
thisIterationReverse = false;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_REVERSE:
|
|
thisIterationReverse = true;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_ALTERNATE:
|
|
thisIterationReverse = (result.mCurrentIteration & 1) == 1;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_ALTERNATE_REVERSE:
|
|
thisIterationReverse = (result.mCurrentIteration & 1) == 0;
|
|
break;
|
|
}
|
|
if (thisIterationReverse) {
|
|
result.mTimeFraction = 1.0 - result.mTimeFraction;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
TimeDuration
|
|
ElementAnimation::ActiveDuration(const AnimationTiming& aTiming)
|
|
{
|
|
if (aTiming.mIterationCount == mozilla::PositiveInfinity<float>()) {
|
|
// An animation that repeats forever has an infinite active duration
|
|
// unless its iteration duration is zero, in which case it has a zero
|
|
// active duration.
|
|
const TimeDuration zeroDuration;
|
|
return aTiming.mIterationDuration == zeroDuration
|
|
? zeroDuration
|
|
: TimeDuration::Forever();
|
|
}
|
|
return aTiming.mIterationDuration.MultDouble(aTiming.mIterationCount);
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanAnimatePropertyOnCompositor(
|
|
const dom::Element *aElement,
|
|
nsCSSProperty aProperty,
|
|
CanAnimateFlags aFlags)
|
|
{
|
|
bool shouldLog = nsLayoutUtils::IsAnimationLoggingEnabled();
|
|
if (!gfxPlatform::OffMainThreadCompositingEnabled()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Compositor disabled");
|
|
LogAsyncAnimationFailure(message);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(aElement);
|
|
if (IsGeometricProperty(aProperty)) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animation of geometric property '");
|
|
message.Append(nsCSSProps::GetStringValue(aProperty));
|
|
message.AppendLiteral("' is disabled");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (aProperty == eCSSProperty_transform) {
|
|
if (frame->Preserves3D() &&
|
|
frame->Preserves3DChildren()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async animation of 'preserve-3d' transforms is not supported. See bug 779598");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (frame->IsSVGTransformed()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async 'transform' animations of frames with SVG transforms is not supported. See bug 779599");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (aFlags & CanAnimate_HasGeometricProperty) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animation of 'transform' not possible due to presence of geometric properties");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
bool enabled = nsLayoutUtils::AreAsyncAnimationsEnabled();
|
|
if (!enabled && shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animations are disabled");
|
|
LogAsyncAnimationFailure(message);
|
|
}
|
|
bool propertyAllowed = (aProperty == eCSSProperty_transform) ||
|
|
(aProperty == eCSSProperty_opacity) ||
|
|
(aFlags & CanAnimate_AllowPartial);
|
|
return enabled && propertyAllowed;
|
|
}
|
|
|
|
/* static */ bool
|
|
ElementAnimationCollection::IsCompositorAnimationDisabledForFrame(
|
|
nsIFrame* aFrame)
|
|
{
|
|
void* prop = aFrame->Properties().Get(nsIFrame::RefusedAsyncAnimation());
|
|
return bool(reinterpret_cast<intptr_t>(prop));
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanPerformOnCompositorThread(
|
|
CanAnimateFlags aFlags) const
|
|
{
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(mElement);
|
|
if (!frame) {
|
|
return false;
|
|
}
|
|
|
|
if (mElementProperty != nsGkAtoms::transitionsProperty &&
|
|
mElementProperty != nsGkAtoms::animationsProperty) {
|
|
if (nsLayoutUtils::IsAnimationLoggingEnabled()) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async animation of pseudoelements"
|
|
" not supported. See bug 771367 (");
|
|
message.Append(nsAtomCString(mElementProperty));
|
|
message.Append(")");
|
|
LogAsyncAnimationFailure(message, mElement);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
bool isRunning = anim->IsRunning();
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx) {
|
|
if (IsGeometricProperty(anim->mProperties[propIdx].mProperty) &&
|
|
isRunning) {
|
|
aFlags = CanAnimateFlags(aFlags | CanAnimate_HasGeometricProperty);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool existsProperty = false;
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
if (!anim->IsRunning()) {
|
|
continue;
|
|
}
|
|
|
|
existsProperty = true;
|
|
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx) {
|
|
const AnimationProperty& prop = anim->mProperties[propIdx];
|
|
if (!CanAnimatePropertyOnCompositor(mElement,
|
|
prop.mProperty,
|
|
aFlags) ||
|
|
IsCompositorAnimationDisabledForFrame(frame)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// No properties to animate
|
|
if (!existsProperty) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::HasAnimationOfProperty(
|
|
nsCSSProperty aProperty) const
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
if (anim->HasAnimationOfProperty(aProperty) &&
|
|
!anim->IsFinishedTransition()) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* static */ void
|
|
ElementAnimationCollection::LogAsyncAnimationFailure(nsCString& aMessage,
|
|
const nsIContent* aContent)
|
|
{
|
|
if (aContent) {
|
|
aMessage.AppendLiteral(" [");
|
|
aMessage.Append(nsAtomCString(aContent->Tag()));
|
|
|
|
nsIAtom* id = aContent->GetID();
|
|
if (id) {
|
|
aMessage.AppendLiteral(" with id '");
|
|
aMessage.Append(nsAtomCString(aContent->GetID()));
|
|
aMessage.Append('\'');
|
|
}
|
|
aMessage.Append(']');
|
|
}
|
|
aMessage.Append('\n');
|
|
printf_stderr(aMessage.get());
|
|
}
|
|
|
|
/*static*/ void
|
|
ElementAnimationCollection::PropertyDtor(void *aObject, nsIAtom *aPropertyName,
|
|
void *aPropertyValue, void *aData)
|
|
{
|
|
ElementAnimationCollection* collection =
|
|
static_cast<ElementAnimationCollection*>(aPropertyValue);
|
|
#ifdef DEBUG
|
|
NS_ABORT_IF_FALSE(!collection->mCalledPropertyDtor, "can't call dtor twice");
|
|
collection->mCalledPropertyDtor = true;
|
|
#endif
|
|
delete collection;
|
|
}
|
|
|
|
void
|
|
ElementAnimationCollection::EnsureStyleRuleFor(TimeStamp aRefreshTime,
|
|
EnsureStyleRuleFlags aFlags)
|
|
{
|
|
if (!mNeedsRefreshes) {
|
|
mStyleRuleRefreshTime = aRefreshTime;
|
|
return;
|
|
}
|
|
|
|
// If we're performing animations on the compositor thread, then we can skip
|
|
// most of the work in this method. But even if we are throttled, then we
|
|
// have to do the work if an animation is ending in order to get correct end
|
|
// of animation behaviour (the styles of the animation disappear, or the fill
|
|
// mode behaviour). This loop checks for any finishing animations and forces
|
|
// the style recalculation if we find any.
|
|
if (aFlags == EnsureStyleRule_IsThrottled) {
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
ElementAnimation* anim = mAnimations[animIdx];
|
|
|
|
// Skip finished transitions or animations whose @keyframes rule
|
|
// is empty.
|
|
if (anim->IsFinishedTransition() || anim->mProperties.IsEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
// The GetLocalTime() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
ComputedTiming computedTiming = anim->GetComputedTiming(anim->mTiming);
|
|
|
|
// XXX We shouldn't really be using mLastNotification as a general
|
|
// indicator that the animation has finished, it should be reserved for
|
|
// events. If we use it differently in the future this use might need
|
|
// changing.
|
|
if (!anim->mIsRunningOnCompositor ||
|
|
(computedTiming.mPhase == ComputedTiming::AnimationPhase_After &&
|
|
anim->mLastNotification != ElementAnimation::LAST_NOTIFICATION_END))
|
|
{
|
|
aFlags = EnsureStyleRule_IsNotThrottled;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aFlags == EnsureStyleRule_IsThrottled) {
|
|
return;
|
|
}
|
|
|
|
// mStyleRule may be null and valid, if we have no style to apply.
|
|
if (mStyleRuleRefreshTime.IsNull() ||
|
|
mStyleRuleRefreshTime != aRefreshTime) {
|
|
mStyleRuleRefreshTime = aRefreshTime;
|
|
mStyleRule = nullptr;
|
|
// We'll set mNeedsRefreshes to true below in all cases where we need them.
|
|
mNeedsRefreshes = false;
|
|
|
|
// FIXME(spec): assume that properties in higher animations override
|
|
// those in lower ones.
|
|
// Therefore, we iterate from last animation to first.
|
|
nsCSSPropertySet properties;
|
|
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
ElementAnimation* anim = mAnimations[animIdx];
|
|
|
|
if (anim->IsFinishedTransition()) {
|
|
continue;
|
|
}
|
|
|
|
// The GetLocalTime() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
ComputedTiming computedTiming = anim->GetComputedTiming(anim->mTiming);
|
|
|
|
if ((computedTiming.mPhase == ComputedTiming::AnimationPhase_Before ||
|
|
computedTiming.mPhase == ComputedTiming::AnimationPhase_Active) &&
|
|
!anim->IsPaused()) {
|
|
mNeedsRefreshes = true;
|
|
}
|
|
|
|
// If the time fraction is null, we don't have fill data for the current
|
|
// time so we shouldn't animate.
|
|
if (computedTiming.mTimeFraction == ComputedTiming::kNullTimeFraction) {
|
|
continue;
|
|
}
|
|
|
|
NS_ABORT_IF_FALSE(0.0 <= computedTiming.mTimeFraction &&
|
|
computedTiming.mTimeFraction <= 1.0,
|
|
"timing fraction should be in [0-1]");
|
|
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx)
|
|
{
|
|
const AnimationProperty &prop = anim->mProperties[propIdx];
|
|
|
|
NS_ABORT_IF_FALSE(prop.mSegments[0].mFromKey == 0.0,
|
|
"incorrect first from key");
|
|
NS_ABORT_IF_FALSE(prop.mSegments[prop.mSegments.Length() - 1].mToKey
|
|
== 1.0,
|
|
"incorrect last to key");
|
|
|
|
if (properties.HasProperty(prop.mProperty)) {
|
|
// A later animation already set this property.
|
|
continue;
|
|
}
|
|
properties.AddProperty(prop.mProperty);
|
|
|
|
NS_ABORT_IF_FALSE(prop.mSegments.Length() > 0,
|
|
"property should not be in animations if it "
|
|
"has no segments");
|
|
|
|
// FIXME: Maybe cache the current segment?
|
|
const AnimationPropertySegment *segment = prop.mSegments.Elements(),
|
|
*segmentEnd = segment + prop.mSegments.Length();
|
|
while (segment->mToKey < computedTiming.mTimeFraction) {
|
|
NS_ABORT_IF_FALSE(segment->mFromKey < segment->mToKey,
|
|
"incorrect keys");
|
|
++segment;
|
|
if (segment == segmentEnd) {
|
|
NS_ABORT_IF_FALSE(false, "incorrect time fraction");
|
|
break; // in order to continue in outer loop (just below)
|
|
}
|
|
NS_ABORT_IF_FALSE(segment->mFromKey == (segment-1)->mToKey,
|
|
"incorrect keys");
|
|
}
|
|
if (segment == segmentEnd) {
|
|
continue;
|
|
}
|
|
NS_ABORT_IF_FALSE(segment->mFromKey < segment->mToKey,
|
|
"incorrect keys");
|
|
NS_ABORT_IF_FALSE(segment >= prop.mSegments.Elements() &&
|
|
size_t(segment - prop.mSegments.Elements()) <
|
|
prop.mSegments.Length(),
|
|
"out of array bounds");
|
|
|
|
if (!mStyleRule) {
|
|
// Allocate the style rule now that we know we have animation data.
|
|
mStyleRule = new css::AnimValuesStyleRule();
|
|
}
|
|
|
|
double positionInSegment =
|
|
(computedTiming.mTimeFraction - segment->mFromKey) /
|
|
(segment->mToKey - segment->mFromKey);
|
|
double valuePosition =
|
|
segment->mTimingFunction.GetValue(positionInSegment);
|
|
|
|
StyleAnimationValue *val =
|
|
mStyleRule->AddEmptyValue(prop.mProperty);
|
|
|
|
#ifdef DEBUG
|
|
bool result =
|
|
#endif
|
|
StyleAnimationValue::Interpolate(prop.mProperty,
|
|
segment->mFromValue,
|
|
segment->mToValue,
|
|
valuePosition, *val);
|
|
NS_ABORT_IF_FALSE(result, "interpolate must succeed now");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
ElementAnimationCollection::CanThrottleTransformChanges(TimeStamp aTime)
|
|
{
|
|
if (!nsLayoutUtils::AreAsyncAnimationsEnabled()) {
|
|
return false;
|
|
}
|
|
|
|
// If we know that the animation cannot cause overflow,
|
|
// we can just disable flushes for this animation.
|
|
|
|
// If we don't show scrollbars, we don't care about overflow.
|
|
if (LookAndFeel::GetInt(LookAndFeel::eIntID_ShowHideScrollbars) == 0) {
|
|
return true;
|
|
}
|
|
|
|
// If this animation can cause overflow, we can throttle some of the ticks.
|
|
if ((aTime - mStyleRuleRefreshTime) < TimeDuration::FromMilliseconds(200)) {
|
|
return true;
|
|
}
|
|
|
|
// If the nearest scrollable ancestor has overflow:hidden,
|
|
// we don't care about overflow.
|
|
nsIScrollableFrame* scrollable = nsLayoutUtils::GetNearestScrollableFrame(
|
|
nsLayoutUtils::GetStyleFrame(mElement));
|
|
if (!scrollable) {
|
|
return true;
|
|
}
|
|
|
|
ScrollbarStyles ss = scrollable->GetScrollbarStyles();
|
|
if (ss.mVertical == NS_STYLE_OVERFLOW_HIDDEN &&
|
|
ss.mHorizontal == NS_STYLE_OVERFLOW_HIDDEN &&
|
|
scrollable->GetLogicalScrollPosition() == nsPoint(0, 0)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanThrottleAnimation(TimeStamp aTime)
|
|
{
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(mElement);
|
|
if (!frame) {
|
|
return false;
|
|
}
|
|
|
|
bool hasTransform = HasAnimationOfProperty(eCSSProperty_transform);
|
|
bool hasOpacity = HasAnimationOfProperty(eCSSProperty_opacity);
|
|
if (hasOpacity) {
|
|
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(
|
|
frame, nsDisplayItem::TYPE_OPACITY);
|
|
if (!layer || mAnimationGeneration > layer->GetAnimationGeneration()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!hasTransform) {
|
|
return true;
|
|
}
|
|
|
|
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(
|
|
frame, nsDisplayItem::TYPE_TRANSFORM);
|
|
if (!layer || mAnimationGeneration > layer->GetAnimationGeneration()) {
|
|
return false;
|
|
}
|
|
|
|
return CanThrottleTransformChanges(aTime);
|
|
}
|
|
|
|
void
|
|
ElementAnimationCollection::UpdateAnimationGeneration(
|
|
nsPresContext* aPresContext)
|
|
{
|
|
mAnimationGeneration =
|
|
aPresContext->RestyleManager()->GetAnimationGeneration();
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::HasCurrentAnimations()
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
if (mAnimations[animIdx]->IsCurrent()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
}
|