forked from mirrors/gecko-dev
e63d42d765
So that now EffectCompositor::HasAnimationsForCompositor doesn't return true for such cases, thus we will not accidentally try to generate nsDisplayBackgroundColor display item for such animations (bug 1699890#c21) and we will not generate nsChangeHint_RepaintFrame (bug 1701547) either. Differential Revision: https://phabricator.services.mozilla.com/D115774
2083 lines
73 KiB
C++
2083 lines
73 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/KeyframeEffect.h"
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#include "FrameLayerBuilder.h"
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#include "mozilla/dom/Animation.h"
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#include "mozilla/dom/KeyframeAnimationOptionsBinding.h"
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// For UnrestrictedDoubleOrKeyframeAnimationOptions;
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#include "mozilla/dom/KeyframeEffectBinding.h"
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#include "mozilla/dom/MutationObservers.h"
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#include "mozilla/AnimationUtils.h"
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#include "mozilla/AutoRestore.h"
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#include "mozilla/ComputedStyleInlines.h"
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#include "mozilla/EffectSet.h"
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#include "mozilla/FloatingPoint.h" // For IsFinite
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#include "mozilla/LayerAnimationInfo.h"
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#include "mozilla/LookAndFeel.h" // For LookAndFeel::GetInt
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#include "mozilla/KeyframeUtils.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/PresShellInlines.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/StaticPrefs_dom.h"
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#include "mozilla/StaticPrefs_gfx.h"
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#include "mozilla/StaticPrefs_layers.h"
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#include "Layers.h" // For Layer
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#include "nsComputedDOMStyle.h" // nsComputedDOMStyle::GetComputedStyle
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#include "nsContentUtils.h"
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#include "nsCSSPropertyIDSet.h"
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#include "nsCSSProps.h" // For nsCSSProps::PropHasFlags
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#include "nsCSSPseudoElements.h" // For PseudoStyleType
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#include "nsCSSRendering.h" // For IsCanvasFrame
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#include "nsDOMMutationObserver.h" // For nsAutoAnimationMutationBatch
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#include "nsIFrame.h"
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#include "nsIFrameInlines.h"
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#include "nsIScrollableFrame.h"
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#include "nsPresContextInlines.h"
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#include "nsRefreshDriver.h"
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namespace mozilla {
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void AnimationProperty::SetPerformanceWarning(
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const AnimationPerformanceWarning& aWarning, const dom::Element* aElement) {
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if (mPerformanceWarning && *mPerformanceWarning == aWarning) {
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return;
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}
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mPerformanceWarning = Some(aWarning);
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nsAutoString localizedString;
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if (StaticPrefs::layers_offmainthreadcomposition_log_animations() &&
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mPerformanceWarning->ToLocalizedString(localizedString)) {
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nsAutoCString logMessage = NS_ConvertUTF16toUTF8(localizedString);
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AnimationUtils::LogAsyncAnimationFailure(logMessage, aElement);
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}
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}
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bool PropertyValuePair::operator==(const PropertyValuePair& aOther) const {
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if (mProperty != aOther.mProperty) {
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return false;
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}
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if (mServoDeclarationBlock == aOther.mServoDeclarationBlock) {
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return true;
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}
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if (!mServoDeclarationBlock || !aOther.mServoDeclarationBlock) {
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return false;
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}
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return Servo_DeclarationBlock_Equals(mServoDeclarationBlock,
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aOther.mServoDeclarationBlock);
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}
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(KeyframeEffect, AnimationEffect,
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mTarget.mElement)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(KeyframeEffect, AnimationEffect)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(KeyframeEffect)
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NS_INTERFACE_MAP_END_INHERITING(AnimationEffect)
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NS_IMPL_ADDREF_INHERITED(KeyframeEffect, AnimationEffect)
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NS_IMPL_RELEASE_INHERITED(KeyframeEffect, AnimationEffect)
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KeyframeEffect::KeyframeEffect(Document* aDocument,
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OwningAnimationTarget&& aTarget,
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TimingParams&& aTiming,
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const KeyframeEffectParams& aOptions)
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: AnimationEffect(aDocument, std::move(aTiming)),
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mTarget(std::move(aTarget)),
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mEffectOptions(aOptions) {}
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KeyframeEffect::KeyframeEffect(Document* aDocument,
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OwningAnimationTarget&& aTarget,
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const KeyframeEffect& aOther)
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: AnimationEffect(aDocument, TimingParams{aOther.SpecifiedTiming()}),
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mTarget(std::move(aTarget)),
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mEffectOptions{aOther.IterationComposite(), aOther.Composite(),
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mTarget.mPseudoType},
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mKeyframes(aOther.mKeyframes.Clone()),
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mProperties(aOther.mProperties.Clone()),
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mBaseValues(aOther.mBaseValues.Clone()) {}
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JSObject* KeyframeEffect::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return KeyframeEffect_Binding::Wrap(aCx, this, aGivenProto);
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}
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IterationCompositeOperation KeyframeEffect::IterationComposite() const {
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return mEffectOptions.mIterationComposite;
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}
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void KeyframeEffect::SetIterationComposite(
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const IterationCompositeOperation& aIterationComposite) {
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if (mEffectOptions.mIterationComposite == aIterationComposite) {
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return;
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}
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if (mAnimation && mAnimation->IsRelevant()) {
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MutationObservers::NotifyAnimationChanged(mAnimation);
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}
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mEffectOptions.mIterationComposite = aIterationComposite;
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RequestRestyle(EffectCompositor::RestyleType::Layer);
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}
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CompositeOperation KeyframeEffect::Composite() const {
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return mEffectOptions.mComposite;
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}
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void KeyframeEffect::SetComposite(const CompositeOperation& aComposite) {
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if (mEffectOptions.mComposite == aComposite) {
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return;
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}
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mEffectOptions.mComposite = aComposite;
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if (mAnimation && mAnimation->IsRelevant()) {
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MutationObservers::NotifyAnimationChanged(mAnimation);
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}
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if (mTarget) {
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RefPtr<ComputedStyle> computedStyle = GetTargetComputedStyle(Flush::None);
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if (computedStyle) {
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UpdateProperties(computedStyle);
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}
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}
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}
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void KeyframeEffect::NotifySpecifiedTimingUpdated() {
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// Use the same document for a pseudo element and its parent element.
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// Use nullptr if we don't have mTarget, so disable the mutation batch.
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nsAutoAnimationMutationBatch mb(mTarget ? mTarget.mElement->OwnerDoc()
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: nullptr);
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if (mAnimation) {
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mAnimation->NotifyEffectTimingUpdated();
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if (mAnimation->IsRelevant()) {
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MutationObservers::NotifyAnimationChanged(mAnimation);
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}
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RequestRestyle(EffectCompositor::RestyleType::Layer);
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}
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}
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void KeyframeEffect::NotifyAnimationTimingUpdated(
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PostRestyleMode aPostRestyle) {
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UpdateTargetRegistration();
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// If the effect is not relevant it will be removed from the target
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// element's effect set. However, effects not in the effect set
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// will not be included in the set of candidate effects for running on
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// the compositor and hence they won't have their compositor status
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// updated. As a result, we need to make sure we clear their compositor
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// status here.
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bool isRelevant = mAnimation && mAnimation->IsRelevant();
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if (!isRelevant) {
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ResetIsRunningOnCompositor();
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}
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// Request restyle if necessary.
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if (aPostRestyle == PostRestyleMode::IfNeeded && mAnimation &&
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!mProperties.IsEmpty() && HasComputedTimingChanged()) {
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EffectCompositor::RestyleType restyleType =
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CanThrottle() ? EffectCompositor::RestyleType::Throttled
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: EffectCompositor::RestyleType::Standard;
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RequestRestyle(restyleType);
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}
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// Detect changes to "in effect" status since we need to recalculate the
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// animation cascade for this element whenever that changes.
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// Note that updating mInEffectOnLastAnimationTimingUpdate has to be done
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// after above CanThrottle() call since the function uses the flag inside it.
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bool inEffect = IsInEffect();
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if (inEffect != mInEffectOnLastAnimationTimingUpdate) {
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MarkCascadeNeedsUpdate();
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mInEffectOnLastAnimationTimingUpdate = inEffect;
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}
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// If we're no longer "in effect", our ComposeStyle method will never be
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// called and we will never have a chance to update mProgressOnLastCompose
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// and mCurrentIterationOnLastCompose.
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// We clear them here to ensure that if we later become "in effect" we will
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// request a restyle (above).
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if (!inEffect) {
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mProgressOnLastCompose.SetNull();
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mCurrentIterationOnLastCompose = 0;
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}
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}
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static bool KeyframesEqualIgnoringComputedOffsets(
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const nsTArray<Keyframe>& aLhs, const nsTArray<Keyframe>& aRhs) {
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if (aLhs.Length() != aRhs.Length()) {
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return false;
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}
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for (size_t i = 0, len = aLhs.Length(); i < len; ++i) {
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const Keyframe& a = aLhs[i];
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const Keyframe& b = aRhs[i];
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if (a.mOffset != b.mOffset || a.mTimingFunction != b.mTimingFunction ||
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a.mPropertyValues != b.mPropertyValues) {
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return false;
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}
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}
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return true;
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}
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// https://drafts.csswg.org/web-animations/#dom-keyframeeffect-setkeyframes
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void KeyframeEffect::SetKeyframes(JSContext* aContext,
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JS::Handle<JSObject*> aKeyframes,
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ErrorResult& aRv) {
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nsTArray<Keyframe> keyframes = KeyframeUtils::GetKeyframesFromObject(
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aContext, mDocument, aKeyframes, "KeyframeEffect.setKeyframes", aRv);
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if (aRv.Failed()) {
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return;
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}
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RefPtr<ComputedStyle> style = GetTargetComputedStyle(Flush::None);
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SetKeyframes(std::move(keyframes), style);
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}
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void KeyframeEffect::SetKeyframes(nsTArray<Keyframe>&& aKeyframes,
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const ComputedStyle* aStyle) {
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if (KeyframesEqualIgnoringComputedOffsets(aKeyframes, mKeyframes)) {
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return;
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}
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mKeyframes = std::move(aKeyframes);
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KeyframeUtils::DistributeKeyframes(mKeyframes);
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if (mAnimation && mAnimation->IsRelevant()) {
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MutationObservers::NotifyAnimationChanged(mAnimation);
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}
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// We need to call UpdateProperties() unless the target element doesn't have
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// style (e.g. the target element is not associated with any document).
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if (aStyle) {
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UpdateProperties(aStyle);
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}
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}
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void KeyframeEffect::ReplaceTransitionStartValue(AnimationValue&& aStartValue) {
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if (!aStartValue.mServo) {
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return;
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}
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// A typical transition should have a single property and a single segment.
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//
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// (And for atypical transitions, that is, those updated by script, we don't
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// apply the replacing behavior.)
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if (mProperties.Length() != 1 || mProperties[0].mSegments.Length() != 1) {
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return;
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}
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// Likewise, check that the keyframes are of the expected shape.
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if (mKeyframes.Length() != 2 || mKeyframes[0].mPropertyValues.Length() != 1) {
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return;
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}
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// Check that the value we are about to substitute in is actually for the
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// same property.
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if (Servo_AnimationValue_GetPropertyId(aStartValue.mServo) !=
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mProperties[0].mProperty) {
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return;
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}
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mKeyframes[0].mPropertyValues[0].mServoDeclarationBlock =
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Servo_AnimationValue_Uncompute(aStartValue.mServo).Consume();
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mProperties[0].mSegments[0].mFromValue = std::move(aStartValue);
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}
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static bool IsEffectiveProperty(const EffectSet& aEffects,
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nsCSSPropertyID aProperty) {
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return !aEffects.PropertiesWithImportantRules().HasProperty(aProperty) ||
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!aEffects.PropertiesForAnimationsLevel().HasProperty(aProperty);
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}
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const AnimationProperty* KeyframeEffect::GetEffectiveAnimationOfProperty(
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nsCSSPropertyID aProperty, const EffectSet& aEffects) const {
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MOZ_ASSERT(mTarget &&
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&aEffects == EffectSet::GetEffectSet(mTarget.mElement,
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mTarget.mPseudoType));
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for (const AnimationProperty& property : mProperties) {
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if (aProperty != property.mProperty) {
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continue;
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}
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const AnimationProperty* result = nullptr;
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// Only include the property if it is not overridden by !important rules in
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// the transitions level.
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if (IsEffectiveProperty(aEffects, property.mProperty)) {
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result = &property;
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}
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return result;
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}
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return nullptr;
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}
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bool KeyframeEffect::HasEffectiveAnimationOfPropertySet(
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const nsCSSPropertyIDSet& aPropertySet, const EffectSet& aEffectSet) const {
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for (const AnimationProperty& property : mProperties) {
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if (aPropertySet.HasProperty(property.mProperty) &&
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IsEffectiveProperty(aEffectSet, property.mProperty)) {
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return true;
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}
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}
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return false;
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}
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nsCSSPropertyIDSet KeyframeEffect::GetPropertiesForCompositor(
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EffectSet& aEffects, const nsIFrame* aFrame) const {
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MOZ_ASSERT(&aEffects ==
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EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType));
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nsCSSPropertyIDSet properties;
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if (!mAnimation || !mAnimation->IsRelevant()) {
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return properties;
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}
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static constexpr nsCSSPropertyIDSet compositorAnimatables =
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nsCSSPropertyIDSet::CompositorAnimatables();
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static constexpr nsCSSPropertyIDSet transformLikeProperties =
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nsCSSPropertyIDSet::TransformLikeProperties();
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nsCSSPropertyIDSet transformSet;
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AnimationPerformanceWarning::Type dummyWarning;
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for (const AnimationProperty& property : mProperties) {
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if (!compositorAnimatables.HasProperty(property.mProperty)) {
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continue;
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}
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// Transform-like properties are combined together on the compositor so we
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// need to evaluate them as a group. We build up a separate set here then
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// evaluate it as a separate step below.
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if (transformLikeProperties.HasProperty(property.mProperty)) {
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transformSet.AddProperty(property.mProperty);
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continue;
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}
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KeyframeEffect::MatchForCompositor matchResult = IsMatchForCompositor(
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nsCSSPropertyIDSet{property.mProperty}, aFrame, aEffects, dummyWarning);
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if (matchResult ==
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KeyframeEffect::MatchForCompositor::NoAndBlockThisProperty ||
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matchResult == KeyframeEffect::MatchForCompositor::No) {
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continue;
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}
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properties.AddProperty(property.mProperty);
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}
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if (!transformSet.IsEmpty()) {
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KeyframeEffect::MatchForCompositor matchResult =
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IsMatchForCompositor(transformSet, aFrame, aEffects, dummyWarning);
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if (matchResult == KeyframeEffect::MatchForCompositor::Yes ||
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matchResult == KeyframeEffect::MatchForCompositor::IfNeeded) {
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properties |= transformSet;
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}
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}
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return properties;
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}
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nsCSSPropertyIDSet KeyframeEffect::GetPropertySet() const {
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nsCSSPropertyIDSet result;
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for (const AnimationProperty& property : mProperties) {
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result.AddProperty(property.mProperty);
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}
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return result;
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}
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#ifdef DEBUG
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bool SpecifiedKeyframeArraysAreEqual(const nsTArray<Keyframe>& aA,
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const nsTArray<Keyframe>& aB) {
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if (aA.Length() != aB.Length()) {
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return false;
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}
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for (size_t i = 0; i < aA.Length(); i++) {
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const Keyframe& a = aA[i];
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const Keyframe& b = aB[i];
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if (a.mOffset != b.mOffset || a.mTimingFunction != b.mTimingFunction ||
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a.mPropertyValues != b.mPropertyValues) {
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return false;
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}
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}
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return true;
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}
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#endif
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static bool HasCurrentColor(
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const nsTArray<AnimationPropertySegment>& aSegments) {
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for (const AnimationPropertySegment& segment : aSegments) {
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if ((!segment.mFromValue.IsNull() && segment.mFromValue.IsCurrentColor()) ||
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(!segment.mToValue.IsNull() && segment.mToValue.IsCurrentColor())) {
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return true;
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}
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}
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return false;
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}
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void KeyframeEffect::UpdateProperties(const ComputedStyle* aStyle) {
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MOZ_ASSERT(aStyle);
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nsTArray<AnimationProperty> properties = BuildProperties(aStyle);
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bool propertiesChanged = mProperties != properties;
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// We need to update base styles even if any properties are not changed at all
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// since base styles might have been changed due to parent style changes, etc.
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bool baseStylesChanged = false;
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EnsureBaseStyles(aStyle, properties,
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!propertiesChanged ? &baseStylesChanged : nullptr);
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if (!propertiesChanged) {
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if (baseStylesChanged) {
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RequestRestyle(EffectCompositor::RestyleType::Layer);
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}
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// Check if we need to update the cumulative change hint because we now have
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// style data.
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if (mNeedsStyleData && mTarget && mTarget.mElement->HasServoData()) {
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CalculateCumulativeChangeHint(aStyle);
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}
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return;
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}
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// Preserve the state of the mIsRunningOnCompositor flag.
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nsCSSPropertyIDSet runningOnCompositorProperties;
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for (const AnimationProperty& property : mProperties) {
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if (property.mIsRunningOnCompositor) {
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runningOnCompositorProperties.AddProperty(property.mProperty);
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}
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}
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mProperties = std::move(properties);
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UpdateEffectSet();
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mHasCurrentColor = false;
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|
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for (AnimationProperty& property : mProperties) {
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property.mIsRunningOnCompositor =
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runningOnCompositorProperties.HasProperty(property.mProperty);
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if (property.mProperty == eCSSProperty_background_color &&
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!mHasCurrentColor) {
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if (HasCurrentColor(property.mSegments)) {
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mHasCurrentColor = true;
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break;
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}
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}
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}
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CalculateCumulativeChangeHint(aStyle);
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MarkCascadeNeedsUpdate();
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if (mAnimation) {
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mAnimation->NotifyEffectPropertiesUpdated();
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}
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RequestRestyle(EffectCompositor::RestyleType::Layer);
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}
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void KeyframeEffect::EnsureBaseStyles(
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const ComputedStyle* aComputedValues,
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const nsTArray<AnimationProperty>& aProperties, bool* aBaseStylesChanged) {
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if (aBaseStylesChanged != nullptr) {
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*aBaseStylesChanged = false;
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}
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|
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if (!mTarget) {
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return;
|
|
}
|
|
|
|
BaseValuesHashmap previousBaseStyles;
|
|
if (aBaseStylesChanged != nullptr) {
|
|
previousBaseStyles = std::move(mBaseValues);
|
|
}
|
|
|
|
mBaseValues.Clear();
|
|
|
|
nsPresContext* presContext =
|
|
nsContentUtils::GetContextForContent(mTarget.mElement);
|
|
// If |aProperties| is empty we're not going to dereference |presContext| so
|
|
// we don't care if it is nullptr.
|
|
//
|
|
// We could just return early when |aProperties| is empty and save looking up
|
|
// the pres context, but that won't save any effort normally since we don't
|
|
// call this function if we have no keyframes to begin with. Furthermore, the
|
|
// case where |presContext| is nullptr is so rare (we've only ever seen in
|
|
// fuzzing, and even then we've never been able to reproduce it reliably)
|
|
// it's not worth the runtime cost of an extra branch.
|
|
MOZ_ASSERT(presContext || aProperties.IsEmpty(),
|
|
"Typically presContext should not be nullptr but if it is"
|
|
" we should have also failed to calculate the computed values"
|
|
" passed-in as aProperties");
|
|
|
|
RefPtr<ComputedStyle> baseComputedStyle;
|
|
for (const AnimationProperty& property : aProperties) {
|
|
EnsureBaseStyle(property, presContext, aComputedValues, baseComputedStyle);
|
|
}
|
|
|
|
if (aBaseStylesChanged != nullptr &&
|
|
std::any_of(
|
|
mBaseValues.cbegin(), mBaseValues.cend(), [&](const auto& entry) {
|
|
return AnimationValue(entry.GetData()) !=
|
|
AnimationValue(previousBaseStyles.Get(entry.GetKey()));
|
|
})) {
|
|
*aBaseStylesChanged = true;
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::EnsureBaseStyle(
|
|
const AnimationProperty& aProperty, nsPresContext* aPresContext,
|
|
const ComputedStyle* aComputedStyle,
|
|
RefPtr<ComputedStyle>& aBaseComputedStyle) {
|
|
bool hasAdditiveValues = false;
|
|
|
|
for (const AnimationPropertySegment& segment : aProperty.mSegments) {
|
|
if (!segment.HasReplaceableValues()) {
|
|
hasAdditiveValues = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!hasAdditiveValues) {
|
|
return;
|
|
}
|
|
|
|
if (!aBaseComputedStyle) {
|
|
MOZ_ASSERT(mTarget, "Should have a valid target");
|
|
|
|
Element* animatingElement = EffectCompositor::GetElementToRestyle(
|
|
mTarget.mElement, mTarget.mPseudoType);
|
|
if (!animatingElement) {
|
|
return;
|
|
}
|
|
aBaseComputedStyle = aPresContext->StyleSet()->GetBaseContextForElement(
|
|
animatingElement, aComputedStyle);
|
|
}
|
|
RefPtr<RawServoAnimationValue> baseValue =
|
|
Servo_ComputedValues_ExtractAnimationValue(aBaseComputedStyle,
|
|
aProperty.mProperty)
|
|
.Consume();
|
|
mBaseValues.InsertOrUpdate(aProperty.mProperty, std::move(baseValue));
|
|
}
|
|
|
|
void KeyframeEffect::WillComposeStyle() {
|
|
ComputedTiming computedTiming = GetComputedTiming();
|
|
mProgressOnLastCompose = computedTiming.mProgress;
|
|
mCurrentIterationOnLastCompose = computedTiming.mCurrentIteration;
|
|
}
|
|
|
|
void KeyframeEffect::ComposeStyleRule(
|
|
RawServoAnimationValueMap& aAnimationValues,
|
|
const AnimationProperty& aProperty,
|
|
const AnimationPropertySegment& aSegment,
|
|
const ComputedTiming& aComputedTiming) {
|
|
auto* opaqueTable =
|
|
reinterpret_cast<RawServoAnimationValueTable*>(&mBaseValues);
|
|
Servo_AnimationCompose(&aAnimationValues, opaqueTable, aProperty.mProperty,
|
|
&aSegment, &aProperty.mSegments.LastElement(),
|
|
&aComputedTiming, mEffectOptions.mIterationComposite);
|
|
}
|
|
|
|
void KeyframeEffect::ComposeStyle(RawServoAnimationValueMap& aComposeResult,
|
|
const nsCSSPropertyIDSet& aPropertiesToSkip) {
|
|
ComputedTiming computedTiming = GetComputedTiming();
|
|
|
|
// If the progress is null, we don't have fill data for the current
|
|
// time so we shouldn't animate.
|
|
if (computedTiming.mProgress.IsNull()) {
|
|
return;
|
|
}
|
|
|
|
for (size_t propIdx = 0, propEnd = mProperties.Length(); propIdx != propEnd;
|
|
++propIdx) {
|
|
const AnimationProperty& prop = mProperties[propIdx];
|
|
|
|
MOZ_ASSERT(prop.mSegments[0].mFromKey == 0.0, "incorrect first from key");
|
|
MOZ_ASSERT(prop.mSegments[prop.mSegments.Length() - 1].mToKey == 1.0,
|
|
"incorrect last to key");
|
|
|
|
if (aPropertiesToSkip.HasProperty(prop.mProperty)) {
|
|
continue;
|
|
}
|
|
|
|
MOZ_ASSERT(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.mProgress.Value()) {
|
|
MOZ_ASSERT(segment->mFromKey <= segment->mToKey, "incorrect keys");
|
|
if ((segment + 1) == segmentEnd) {
|
|
break;
|
|
}
|
|
++segment;
|
|
MOZ_ASSERT(segment->mFromKey == (segment - 1)->mToKey, "incorrect keys");
|
|
}
|
|
MOZ_ASSERT(segment->mFromKey <= segment->mToKey, "incorrect keys");
|
|
MOZ_ASSERT(segment >= prop.mSegments.Elements() &&
|
|
size_t(segment - prop.mSegments.Elements()) <
|
|
prop.mSegments.Length(),
|
|
"out of array bounds");
|
|
|
|
ComposeStyleRule(aComposeResult, prop, *segment, computedTiming);
|
|
}
|
|
|
|
// If the animation produces a change hint that affects the overflow region,
|
|
// we need to record the current time to unthrottle the animation
|
|
// periodically when the animation is being throttled because it's scrolled
|
|
// out of view.
|
|
if (HasPropertiesThatMightAffectOverflow()) {
|
|
nsPresContext* presContext =
|
|
nsContentUtils::GetContextForContent(mTarget.mElement);
|
|
EffectSet* effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
if (presContext && effectSet) {
|
|
TimeStamp now = presContext->RefreshDriver()->MostRecentRefresh();
|
|
effectSet->UpdateLastOverflowAnimationSyncTime(now);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool KeyframeEffect::IsRunningOnCompositor() const {
|
|
// We consider animation is running on compositor if there is at least
|
|
// one property running on compositor.
|
|
// Animation.IsRunningOnCompotitor will return more fine grained
|
|
// information in bug 1196114.
|
|
for (const AnimationProperty& property : mProperties) {
|
|
if (property.mIsRunningOnCompositor) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void KeyframeEffect::SetIsRunningOnCompositor(nsCSSPropertyID aProperty,
|
|
bool aIsRunning) {
|
|
MOZ_ASSERT(
|
|
nsCSSProps::PropHasFlags(aProperty, CSSPropFlags::CanAnimateOnCompositor),
|
|
"Property being animated on compositor is a recognized "
|
|
"compositor-animatable property");
|
|
for (AnimationProperty& property : mProperties) {
|
|
if (property.mProperty == aProperty) {
|
|
property.mIsRunningOnCompositor = aIsRunning;
|
|
// We currently only set a performance warning message when animations
|
|
// cannot be run on the compositor, so if this animation is running
|
|
// on the compositor we don't need a message.
|
|
if (aIsRunning) {
|
|
property.mPerformanceWarning.reset();
|
|
} else if (mAnimation && mAnimation->IsPartialPrerendered()) {
|
|
ResetPartialPrerendered();
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::SetIsRunningOnCompositor(
|
|
const nsCSSPropertyIDSet& aPropertySet, bool aIsRunning) {
|
|
for (AnimationProperty& property : mProperties) {
|
|
if (aPropertySet.HasProperty(property.mProperty)) {
|
|
MOZ_ASSERT(nsCSSProps::PropHasFlags(property.mProperty,
|
|
CSSPropFlags::CanAnimateOnCompositor),
|
|
"Property being animated on compositor is a recognized "
|
|
"compositor-animatable property");
|
|
property.mIsRunningOnCompositor = aIsRunning;
|
|
// We currently only set a performance warning message when animations
|
|
// cannot be run on the compositor, so if this animation is running
|
|
// on the compositor we don't need a message.
|
|
if (aIsRunning) {
|
|
property.mPerformanceWarning.reset();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!aIsRunning && mAnimation && mAnimation->IsPartialPrerendered()) {
|
|
ResetPartialPrerendered();
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::ResetIsRunningOnCompositor() {
|
|
for (AnimationProperty& property : mProperties) {
|
|
property.mIsRunningOnCompositor = false;
|
|
}
|
|
|
|
if (mAnimation && mAnimation->IsPartialPrerendered()) {
|
|
ResetPartialPrerendered();
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::ResetPartialPrerendered() {
|
|
MOZ_ASSERT(mAnimation && mAnimation->IsPartialPrerendered());
|
|
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) {
|
|
return;
|
|
}
|
|
|
|
nsIWidget* widget = frame->GetNearestWidget();
|
|
if (!widget) {
|
|
return;
|
|
}
|
|
|
|
if (layers::LayerManager* layerManager = widget->GetLayerManager()) {
|
|
layerManager->RemovePartialPrerenderedAnimation(
|
|
mAnimation->IdOnCompositor(), mAnimation);
|
|
}
|
|
}
|
|
|
|
static bool IsSupportedPseudoForWebAnimation(PseudoStyleType aType) {
|
|
// FIXME: Bug 1615469: Support first-line and first-letter for Web Animation.
|
|
return aType == PseudoStyleType::before || aType == PseudoStyleType::after ||
|
|
aType == PseudoStyleType::marker;
|
|
}
|
|
|
|
static const KeyframeEffectOptions& KeyframeEffectOptionsFromUnion(
|
|
const UnrestrictedDoubleOrKeyframeEffectOptions& aOptions) {
|
|
MOZ_ASSERT(aOptions.IsKeyframeEffectOptions());
|
|
return aOptions.GetAsKeyframeEffectOptions();
|
|
}
|
|
|
|
static const KeyframeEffectOptions& KeyframeEffectOptionsFromUnion(
|
|
const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions) {
|
|
MOZ_ASSERT(aOptions.IsKeyframeAnimationOptions());
|
|
return aOptions.GetAsKeyframeAnimationOptions();
|
|
}
|
|
|
|
template <class OptionsType>
|
|
static KeyframeEffectParams KeyframeEffectParamsFromUnion(
|
|
const OptionsType& aOptions, CallerType aCallerType, ErrorResult& aRv) {
|
|
KeyframeEffectParams result;
|
|
if (aOptions.IsUnrestrictedDouble()) {
|
|
return result;
|
|
}
|
|
|
|
const KeyframeEffectOptions& options =
|
|
KeyframeEffectOptionsFromUnion(aOptions);
|
|
|
|
// If dom.animations-api.compositing.enabled is turned off,
|
|
// iterationComposite and composite are the default value 'replace' in the
|
|
// dictionary.
|
|
result.mIterationComposite = options.mIterationComposite;
|
|
result.mComposite = options.mComposite;
|
|
|
|
result.mPseudoType = PseudoStyleType::NotPseudo;
|
|
if (DOMStringIsNull(options.mPseudoElement)) {
|
|
return result;
|
|
}
|
|
|
|
RefPtr<nsAtom> pseudoAtom =
|
|
nsCSSPseudoElements::GetPseudoAtom(options.mPseudoElement);
|
|
if (!pseudoAtom) {
|
|
// Per the spec, we throw SyntaxError for syntactically invalid pseudos.
|
|
aRv.ThrowSyntaxError(
|
|
nsPrintfCString("'%s' is a syntactically invalid pseudo-element.",
|
|
NS_ConvertUTF16toUTF8(options.mPseudoElement).get()));
|
|
return result;
|
|
}
|
|
|
|
result.mPseudoType = nsCSSPseudoElements::GetPseudoType(
|
|
pseudoAtom, CSSEnabledState::ForAllContent);
|
|
if (!IsSupportedPseudoForWebAnimation(result.mPseudoType)) {
|
|
// Per the spec, we throw SyntaxError for unsupported pseudos.
|
|
aRv.ThrowSyntaxError(
|
|
nsPrintfCString("'%s' is an unsupported pseudo-element.",
|
|
NS_ConvertUTF16toUTF8(options.mPseudoElement).get()));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
template <class OptionsType>
|
|
/* static */
|
|
already_AddRefed<KeyframeEffect> KeyframeEffect::ConstructKeyframeEffect(
|
|
const GlobalObject& aGlobal, Element* aTarget,
|
|
JS::Handle<JSObject*> aKeyframes, const OptionsType& aOptions,
|
|
ErrorResult& aRv) {
|
|
// We should get the document from `aGlobal` instead of the current Realm
|
|
// to make this works in Xray case.
|
|
//
|
|
// In all non-Xray cases, `aGlobal` matches the current Realm, so this
|
|
// matches the spec behavior.
|
|
//
|
|
// In Xray case, the new objects should be created using the document of
|
|
// the target global, but the KeyframeEffect constructors are called in the
|
|
// caller's compartment to access `aKeyframes` object.
|
|
Document* doc = AnimationUtils::GetDocumentFromGlobal(aGlobal.Get());
|
|
if (!doc) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
KeyframeEffectParams effectOptions =
|
|
KeyframeEffectParamsFromUnion(aOptions, aGlobal.CallerType(), aRv);
|
|
// An invalid Pseudo-element aborts all further steps.
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
|
|
TimingParams timingParams = TimingParams::FromOptionsUnion(aOptions, aRv);
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<KeyframeEffect> effect = new KeyframeEffect(
|
|
doc, OwningAnimationTarget(aTarget, effectOptions.mPseudoType),
|
|
std::move(timingParams), effectOptions);
|
|
|
|
effect->SetKeyframes(aGlobal.Context(), aKeyframes, aRv);
|
|
if (aRv.Failed()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return effect.forget();
|
|
}
|
|
|
|
nsTArray<AnimationProperty> KeyframeEffect::BuildProperties(
|
|
const ComputedStyle* aStyle) {
|
|
MOZ_ASSERT(aStyle);
|
|
|
|
nsTArray<AnimationProperty> result;
|
|
// If mTarget is false (i.e. mTarget.mElement is null), return an empty
|
|
// property array.
|
|
if (!mTarget) {
|
|
return result;
|
|
}
|
|
|
|
// When GetComputedKeyframeValues or GetAnimationPropertiesFromKeyframes
|
|
// calculate computed values from |mKeyframes|, they could possibly
|
|
// trigger a subsequent restyle in which we rebuild animations. If that
|
|
// happens we could find that |mKeyframes| is overwritten while it is
|
|
// being iterated over. Normally that shouldn't happen but just in case we
|
|
// make a copy of |mKeyframes| first and iterate over that instead.
|
|
auto keyframesCopy(mKeyframes.Clone());
|
|
|
|
result = KeyframeUtils::GetAnimationPropertiesFromKeyframes(
|
|
keyframesCopy, mTarget.mElement, mTarget.mPseudoType, aStyle,
|
|
mEffectOptions.mComposite);
|
|
|
|
#ifdef DEBUG
|
|
MOZ_ASSERT(SpecifiedKeyframeArraysAreEqual(mKeyframes, keyframesCopy),
|
|
"Apart from the computed offset members, the keyframes array"
|
|
" should not be modified");
|
|
#endif
|
|
|
|
mKeyframes = std::move(keyframesCopy);
|
|
return result;
|
|
}
|
|
|
|
template <typename FrameEnumFunc>
|
|
static void EnumerateContinuationsOrIBSplitSiblings(nsIFrame* aFrame,
|
|
FrameEnumFunc&& aFunc) {
|
|
while (aFrame) {
|
|
aFunc(aFrame);
|
|
aFrame = nsLayoutUtils::GetNextContinuationOrIBSplitSibling(aFrame);
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::UpdateTarget(Element* aElement,
|
|
PseudoStyleType aPseudoType) {
|
|
OwningAnimationTarget newTarget(aElement, aPseudoType);
|
|
|
|
if (mTarget == newTarget) {
|
|
// Assign the same target, skip it.
|
|
return;
|
|
}
|
|
|
|
if (mTarget) {
|
|
// Call ResetIsRunningOnCompositor() prior to UnregisterTarget() since
|
|
// ResetIsRunningOnCompositor() might try to get the EffectSet associated
|
|
// with this keyframe effect to remove partial pre-render animation from
|
|
// the layer manager.
|
|
ResetIsRunningOnCompositor();
|
|
UnregisterTarget();
|
|
|
|
RequestRestyle(EffectCompositor::RestyleType::Layer);
|
|
|
|
nsAutoAnimationMutationBatch mb(mTarget.mElement->OwnerDoc());
|
|
if (mAnimation) {
|
|
MutationObservers::NotifyAnimationRemoved(mAnimation);
|
|
}
|
|
}
|
|
|
|
mTarget = newTarget;
|
|
|
|
if (mTarget) {
|
|
UpdateTargetRegistration();
|
|
RefPtr<ComputedStyle> computedStyle = GetTargetComputedStyle(Flush::None);
|
|
if (computedStyle) {
|
|
UpdateProperties(computedStyle);
|
|
}
|
|
|
|
RequestRestyle(EffectCompositor::RestyleType::Layer);
|
|
|
|
nsAutoAnimationMutationBatch mb(mTarget.mElement->OwnerDoc());
|
|
if (mAnimation) {
|
|
MutationObservers::NotifyAnimationAdded(mAnimation);
|
|
mAnimation->ReschedulePendingTasks();
|
|
}
|
|
}
|
|
|
|
if (mAnimation) {
|
|
mAnimation->NotifyEffectTargetUpdated();
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::UpdateTargetRegistration() {
|
|
if (!mTarget) {
|
|
return;
|
|
}
|
|
|
|
bool isRelevant = mAnimation && mAnimation->IsRelevant();
|
|
|
|
// Animation::IsRelevant() returns a cached value. It only updates when
|
|
// something calls Animation::UpdateRelevance. Whenever our timing changes,
|
|
// we should be notifying our Animation before calling this, so
|
|
// Animation::IsRelevant() should be up-to-date by the time we get here.
|
|
MOZ_ASSERT(isRelevant ==
|
|
((IsCurrent() || IsInEffect()) && mAnimation &&
|
|
mAnimation->ReplaceState() != AnimationReplaceState::Removed),
|
|
"Out of date Animation::IsRelevant value");
|
|
|
|
if (isRelevant && !mInEffectSet) {
|
|
EffectSet* effectSet =
|
|
EffectSet::GetOrCreateEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
effectSet->AddEffect(*this);
|
|
mInEffectSet = true;
|
|
UpdateEffectSet(effectSet);
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
EnumerateContinuationsOrIBSplitSiblings(
|
|
frame, [](nsIFrame* aFrame) { aFrame->MarkNeedsDisplayItemRebuild(); });
|
|
} else if (!isRelevant && mInEffectSet) {
|
|
UnregisterTarget();
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::UnregisterTarget() {
|
|
if (!mInEffectSet) {
|
|
return;
|
|
}
|
|
|
|
EffectSet* effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
MOZ_ASSERT(effectSet,
|
|
"If mInEffectSet is true, there must be an EffectSet"
|
|
" on the target element");
|
|
mInEffectSet = false;
|
|
if (effectSet) {
|
|
effectSet->RemoveEffect(*this);
|
|
|
|
if (effectSet->IsEmpty()) {
|
|
EffectSet::DestroyEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
}
|
|
}
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
EnumerateContinuationsOrIBSplitSiblings(
|
|
frame, [](nsIFrame* aFrame) { aFrame->MarkNeedsDisplayItemRebuild(); });
|
|
}
|
|
|
|
void KeyframeEffect::RequestRestyle(
|
|
EffectCompositor::RestyleType aRestyleType) {
|
|
if (!mTarget) {
|
|
return;
|
|
}
|
|
nsPresContext* presContext =
|
|
nsContentUtils::GetContextForContent(mTarget.mElement);
|
|
if (presContext && mAnimation) {
|
|
presContext->EffectCompositor()->RequestRestyle(
|
|
mTarget.mElement, mTarget.mPseudoType, aRestyleType,
|
|
mAnimation->CascadeLevel());
|
|
}
|
|
}
|
|
|
|
already_AddRefed<ComputedStyle> KeyframeEffect::GetTargetComputedStyle(
|
|
Flush aFlushType) const {
|
|
if (!GetRenderedDocument()) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(mTarget,
|
|
"Should only have a document when we have a target element");
|
|
|
|
nsAtom* pseudo = PseudoStyle::IsPseudoElement(mTarget.mPseudoType)
|
|
? nsCSSPseudoElements::GetPseudoAtom(mTarget.mPseudoType)
|
|
: nullptr;
|
|
|
|
OwningAnimationTarget kungfuDeathGrip(mTarget.mElement, mTarget.mPseudoType);
|
|
|
|
return aFlushType == Flush::Style
|
|
? nsComputedDOMStyle::GetComputedStyle(mTarget.mElement, pseudo)
|
|
: nsComputedDOMStyle::GetComputedStyleNoFlush(mTarget.mElement,
|
|
pseudo);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void DumpAnimationProperties(
|
|
const RawServoStyleSet* aRawSet,
|
|
nsTArray<AnimationProperty>& aAnimationProperties) {
|
|
for (auto& p : aAnimationProperties) {
|
|
printf("%s\n", nsCString(nsCSSProps::GetStringValue(p.mProperty)).get());
|
|
for (auto& s : p.mSegments) {
|
|
nsAutoCString fromValue, toValue;
|
|
s.mFromValue.SerializeSpecifiedValue(p.mProperty, aRawSet, fromValue);
|
|
s.mToValue.SerializeSpecifiedValue(p.mProperty, aRawSet, toValue);
|
|
printf(" %f..%f: %s..%s\n", s.mFromKey, s.mToKey, fromValue.get(),
|
|
toValue.get());
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* static */
|
|
already_AddRefed<KeyframeEffect> KeyframeEffect::Constructor(
|
|
const GlobalObject& aGlobal, Element* aTarget,
|
|
JS::Handle<JSObject*> aKeyframes,
|
|
const UnrestrictedDoubleOrKeyframeEffectOptions& aOptions,
|
|
ErrorResult& aRv) {
|
|
return ConstructKeyframeEffect(aGlobal, aTarget, aKeyframes, aOptions, aRv);
|
|
}
|
|
|
|
/* static */
|
|
already_AddRefed<KeyframeEffect> KeyframeEffect::Constructor(
|
|
const GlobalObject& aGlobal, Element* aTarget,
|
|
JS::Handle<JSObject*> aKeyframes,
|
|
const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
|
|
ErrorResult& aRv) {
|
|
return ConstructKeyframeEffect(aGlobal, aTarget, aKeyframes, aOptions, aRv);
|
|
}
|
|
|
|
/* static */
|
|
already_AddRefed<KeyframeEffect> KeyframeEffect::Constructor(
|
|
const GlobalObject& aGlobal, KeyframeEffect& aSource, ErrorResult& aRv) {
|
|
Document* doc = AnimationUtils::GetCurrentRealmDocument(aGlobal.Context());
|
|
if (!doc) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
// Create a new KeyframeEffect object with aSource's target,
|
|
// iteration composite operation, composite operation, and spacing mode.
|
|
// The constructor creates a new AnimationEffect object by
|
|
// aSource's TimingParams.
|
|
// Note: we don't need to re-throw exceptions since the value specified on
|
|
// aSource's timing object can be assumed valid.
|
|
RefPtr<KeyframeEffect> effect =
|
|
new KeyframeEffect(doc, OwningAnimationTarget{aSource.mTarget}, aSource);
|
|
// Copy cumulative change hint. mCumulativeChangeHint should be the same as
|
|
// the source one because both of targets are the same.
|
|
effect->mCumulativeChangeHint = aSource.mCumulativeChangeHint;
|
|
|
|
return effect.forget();
|
|
}
|
|
|
|
void KeyframeEffect::SetPseudoElement(const nsAString& aPseudoElement,
|
|
ErrorResult& aRv) {
|
|
PseudoStyleType pseudoType = PseudoStyleType::NotPseudo;
|
|
if (DOMStringIsNull(aPseudoElement)) {
|
|
UpdateTarget(mTarget.mElement, pseudoType);
|
|
return;
|
|
}
|
|
|
|
// Note: GetPseudoAtom() also returns nullptr for the null string,
|
|
// so we handle null case before this.
|
|
RefPtr<nsAtom> pseudoAtom =
|
|
nsCSSPseudoElements::GetPseudoAtom(aPseudoElement);
|
|
if (!pseudoAtom) {
|
|
// Per the spec, we throw SyntaxError for syntactically invalid pseudos.
|
|
aRv.ThrowSyntaxError(
|
|
nsPrintfCString("'%s' is a syntactically invalid pseudo-element.",
|
|
NS_ConvertUTF16toUTF8(aPseudoElement).get()));
|
|
return;
|
|
}
|
|
|
|
pseudoType = nsCSSPseudoElements::GetPseudoType(
|
|
pseudoAtom, CSSEnabledState::ForAllContent);
|
|
if (!IsSupportedPseudoForWebAnimation(pseudoType)) {
|
|
// Per the spec, we throw SyntaxError for unsupported pseudos.
|
|
aRv.ThrowSyntaxError(
|
|
nsPrintfCString("'%s' is an unsupported pseudo-element.",
|
|
NS_ConvertUTF16toUTF8(aPseudoElement).get()));
|
|
return;
|
|
}
|
|
|
|
UpdateTarget(mTarget.mElement, pseudoType);
|
|
}
|
|
|
|
static void CreatePropertyValue(
|
|
nsCSSPropertyID aProperty, float aOffset,
|
|
const Maybe<ComputedTimingFunction>& aTimingFunction,
|
|
const AnimationValue& aValue, dom::CompositeOperation aComposite,
|
|
const RawServoStyleSet* aRawSet, AnimationPropertyValueDetails& aResult) {
|
|
aResult.mOffset = aOffset;
|
|
|
|
if (!aValue.IsNull()) {
|
|
nsAutoCString stringValue;
|
|
aValue.SerializeSpecifiedValue(aProperty, aRawSet, stringValue);
|
|
aResult.mValue.Construct(stringValue);
|
|
}
|
|
|
|
if (aTimingFunction) {
|
|
aResult.mEasing.Construct();
|
|
aTimingFunction->AppendToString(aResult.mEasing.Value());
|
|
} else {
|
|
aResult.mEasing.Construct("linear"_ns);
|
|
}
|
|
|
|
aResult.mComposite = aComposite;
|
|
}
|
|
|
|
void KeyframeEffect::GetProperties(
|
|
nsTArray<AnimationPropertyDetails>& aProperties, ErrorResult& aRv) const {
|
|
const RawServoStyleSet* rawSet =
|
|
mDocument->StyleSetForPresShellOrMediaQueryEvaluation()->RawSet();
|
|
|
|
for (const AnimationProperty& property : mProperties) {
|
|
AnimationPropertyDetails propertyDetails;
|
|
propertyDetails.mProperty =
|
|
NS_ConvertASCIItoUTF16(nsCSSProps::GetStringValue(property.mProperty));
|
|
propertyDetails.mRunningOnCompositor = property.mIsRunningOnCompositor;
|
|
|
|
nsAutoString localizedString;
|
|
if (property.mPerformanceWarning &&
|
|
property.mPerformanceWarning->ToLocalizedString(localizedString)) {
|
|
propertyDetails.mWarning.Construct(localizedString);
|
|
}
|
|
|
|
if (!propertyDetails.mValues.SetCapacity(property.mSegments.Length(),
|
|
mozilla::fallible)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
|
|
for (size_t segmentIdx = 0, segmentLen = property.mSegments.Length();
|
|
segmentIdx < segmentLen; segmentIdx++) {
|
|
const AnimationPropertySegment& segment = property.mSegments[segmentIdx];
|
|
|
|
binding_detail::FastAnimationPropertyValueDetails fromValue;
|
|
CreatePropertyValue(property.mProperty, segment.mFromKey,
|
|
segment.mTimingFunction, segment.mFromValue,
|
|
segment.mFromComposite, rawSet, fromValue);
|
|
// We don't apply timing functions for zero-length segments, so
|
|
// don't return one here.
|
|
if (segment.mFromKey == segment.mToKey) {
|
|
fromValue.mEasing.Reset();
|
|
}
|
|
// Even though we called SetCapacity before, this could fail, since we
|
|
// might add multiple elements to propertyDetails.mValues for an element
|
|
// of property.mSegments in the cases mentioned below.
|
|
if (!propertyDetails.mValues.AppendElement(fromValue,
|
|
mozilla::fallible)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
|
|
// Normally we can ignore the to-value for this segment since it is
|
|
// identical to the from-value from the next segment. However, we need
|
|
// to add it if either:
|
|
// a) this is the last segment, or
|
|
// b) the next segment's from-value differs.
|
|
if (segmentIdx == segmentLen - 1 ||
|
|
property.mSegments[segmentIdx + 1].mFromValue != segment.mToValue) {
|
|
binding_detail::FastAnimationPropertyValueDetails toValue;
|
|
CreatePropertyValue(property.mProperty, segment.mToKey, Nothing(),
|
|
segment.mToValue, segment.mToComposite, rawSet,
|
|
toValue);
|
|
// It doesn't really make sense to have a timing function on the
|
|
// last property value or before a sudden jump so we just drop the
|
|
// easing property altogether.
|
|
toValue.mEasing.Reset();
|
|
if (!propertyDetails.mValues.AppendElement(toValue,
|
|
mozilla::fallible)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
aProperties.AppendElement(propertyDetails);
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::GetKeyframes(JSContext* aCx, nsTArray<JSObject*>& aResult,
|
|
ErrorResult& aRv) const {
|
|
MOZ_ASSERT(aResult.IsEmpty());
|
|
MOZ_ASSERT(!aRv.Failed());
|
|
|
|
if (!aResult.SetCapacity(mKeyframes.Length(), mozilla::fallible)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
|
|
bool isCSSAnimation = mAnimation && mAnimation->AsCSSAnimation();
|
|
|
|
// For Servo, when we have CSS Animation @keyframes with variables, we convert
|
|
// shorthands to longhands if needed, and store a reference to the unparsed
|
|
// value. When it comes time to serialize, however, what do you serialize for
|
|
// a longhand that comes from a variable reference in a shorthand? Servo says,
|
|
// "an empty string" which is not particularly helpful.
|
|
//
|
|
// We should just store shorthands as-is (bug 1391537) and then return the
|
|
// variable references, but for now, since we don't do that, and in order to
|
|
// be consistent with Gecko, we just expand the variables (assuming we have
|
|
// enough context to do so). For that we need to grab the ComputedStyle so we
|
|
// know what custom property values to provide.
|
|
RefPtr<ComputedStyle> computedStyle;
|
|
if (isCSSAnimation) {
|
|
// The following will flush style but that's ok since if you update
|
|
// a variable's computed value, you expect to see that updated value in the
|
|
// result of getKeyframes().
|
|
//
|
|
// If we don't have a target, the following will return null. In that case
|
|
// we might end up returning variables as-is or empty string. That should be
|
|
// acceptable however, since such a case is rare and this is only
|
|
// short-term (and unshipped) behavior until bug 1391537 is fixed.
|
|
computedStyle = GetTargetComputedStyle(Flush::Style);
|
|
}
|
|
|
|
const RawServoStyleSet* rawSet =
|
|
mDocument->StyleSetForPresShellOrMediaQueryEvaluation()->RawSet();
|
|
|
|
for (const Keyframe& keyframe : mKeyframes) {
|
|
// Set up a dictionary object for the explicit members
|
|
BaseComputedKeyframe keyframeDict;
|
|
if (keyframe.mOffset) {
|
|
keyframeDict.mOffset.SetValue(keyframe.mOffset.value());
|
|
}
|
|
MOZ_ASSERT(keyframe.mComputedOffset != Keyframe::kComputedOffsetNotSet,
|
|
"Invalid computed offset");
|
|
keyframeDict.mComputedOffset.Construct(keyframe.mComputedOffset);
|
|
if (keyframe.mTimingFunction) {
|
|
keyframeDict.mEasing.Truncate();
|
|
keyframe.mTimingFunction.ref().AppendToString(keyframeDict.mEasing);
|
|
} // else if null, leave easing as its default "linear".
|
|
|
|
// With the pref off (i.e. dom.animations-api.compositing.enabled:false),
|
|
// the dictionary-to-JS conversion will skip this member entirely.
|
|
keyframeDict.mComposite = keyframe.mComposite;
|
|
|
|
JS::Rooted<JS::Value> keyframeJSValue(aCx);
|
|
if (!ToJSValue(aCx, keyframeDict, &keyframeJSValue)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
RefPtr<RawServoDeclarationBlock> customProperties;
|
|
// A workaround for CSS Animations in servo backend, custom properties in
|
|
// keyframe are stored in a servo's declaration block. Find the declaration
|
|
// block to resolve CSS variables in the keyframe.
|
|
// This workaround will be solved by bug 1391537.
|
|
if (isCSSAnimation) {
|
|
for (const PropertyValuePair& propertyValue : keyframe.mPropertyValues) {
|
|
if (propertyValue.mProperty ==
|
|
nsCSSPropertyID::eCSSPropertyExtra_variable) {
|
|
customProperties = propertyValue.mServoDeclarationBlock;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
JS::Rooted<JSObject*> keyframeObject(aCx, &keyframeJSValue.toObject());
|
|
for (const PropertyValuePair& propertyValue : keyframe.mPropertyValues) {
|
|
nsAutoCString stringValue;
|
|
// Don't serialize the custom properties for this keyframe.
|
|
if (propertyValue.mProperty ==
|
|
nsCSSPropertyID::eCSSPropertyExtra_variable) {
|
|
continue;
|
|
}
|
|
if (propertyValue.mServoDeclarationBlock) {
|
|
Servo_DeclarationBlock_SerializeOneValue(
|
|
propertyValue.mServoDeclarationBlock, propertyValue.mProperty,
|
|
&stringValue, computedStyle, customProperties, rawSet);
|
|
} else {
|
|
RawServoAnimationValue* value =
|
|
mBaseValues.GetWeak(propertyValue.mProperty);
|
|
|
|
if (value) {
|
|
Servo_AnimationValue_Serialize(value, propertyValue.mProperty, rawSet,
|
|
&stringValue);
|
|
}
|
|
}
|
|
|
|
// Basically, we need to do the mapping:
|
|
// * eCSSProperty_offset => "cssOffset"
|
|
// * eCSSProperty_float => "cssFloat"
|
|
// This means if property refers to the CSS "offset"/"float" property,
|
|
// return the string "cssOffset"/"cssFloat". (So avoid overlapping
|
|
// "offset" property in BaseKeyframe.)
|
|
// https://drafts.csswg.org/web-animations/#property-name-conversion
|
|
const char* name = nullptr;
|
|
switch (propertyValue.mProperty) {
|
|
case nsCSSPropertyID::eCSSProperty_offset:
|
|
name = "cssOffset";
|
|
break;
|
|
case nsCSSPropertyID::eCSSProperty_float:
|
|
// FIXME: Bug 1582314: Should handle cssFloat manually if we remove it
|
|
// from nsCSSProps::PropertyIDLName().
|
|
default:
|
|
name = nsCSSProps::PropertyIDLName(propertyValue.mProperty);
|
|
}
|
|
|
|
JS::Rooted<JS::Value> value(aCx);
|
|
if (!NonVoidUTF8StringToJsval(aCx, stringValue, &value) ||
|
|
!JS_DefineProperty(aCx, keyframeObject, name, value,
|
|
JSPROP_ENUMERATE)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
}
|
|
|
|
aResult.AppendElement(keyframeObject);
|
|
}
|
|
}
|
|
|
|
/* static */ const TimeDuration
|
|
KeyframeEffect::OverflowRegionRefreshInterval() {
|
|
// The amount of time we can wait between updating throttled animations
|
|
// on the main thread that influence the overflow region.
|
|
static const TimeDuration kOverflowRegionRefreshInterval =
|
|
TimeDuration::FromMilliseconds(200);
|
|
|
|
return kOverflowRegionRefreshInterval;
|
|
}
|
|
|
|
static bool IsDefinitivelyInvisibleDueToOpacity(const nsIFrame& aFrame) {
|
|
if (!aFrame.Style()->IsInOpacityZeroSubtree()) {
|
|
return false;
|
|
}
|
|
|
|
// Find the root of the opacity: 0 subtree.
|
|
const nsIFrame* root = &aFrame;
|
|
while (true) {
|
|
auto* parent = root->GetInFlowParent();
|
|
if (!parent || !parent->Style()->IsInOpacityZeroSubtree()) {
|
|
break;
|
|
}
|
|
root = parent;
|
|
}
|
|
|
|
MOZ_ASSERT(root && root->Style()->IsInOpacityZeroSubtree());
|
|
|
|
// If aFrame is the root of the opacity: zero subtree, we can't prove we can
|
|
// optimize it away, because it may have an opacity animation itself.
|
|
if (root == &aFrame) {
|
|
return false;
|
|
}
|
|
|
|
// Even if we're in an opacity: zero subtree, if the root of the subtree may
|
|
// have an opacity animation, we can't optimize us away, as we may become
|
|
// visible ourselves.
|
|
return !root->HasAnimationOfOpacity();
|
|
}
|
|
|
|
static bool CanOptimizeAwayDueToOpacity(const KeyframeEffect& aEffect,
|
|
const nsIFrame& aFrame) {
|
|
if (!aFrame.Style()->IsInOpacityZeroSubtree()) {
|
|
return false;
|
|
}
|
|
if (IsDefinitivelyInvisibleDueToOpacity(aFrame)) {
|
|
return true;
|
|
}
|
|
return !aEffect.HasOpacityChange() && !aFrame.HasAnimationOfOpacity();
|
|
}
|
|
|
|
bool KeyframeEffect::CanThrottleIfNotVisible(nsIFrame& aFrame) const {
|
|
// Unless we are newly in-effect, we can throttle the animation if the
|
|
// animation is paint only and the target frame is out of view or the document
|
|
// is in background tabs.
|
|
if (!mInEffectOnLastAnimationTimingUpdate || !CanIgnoreIfNotVisible()) {
|
|
return false;
|
|
}
|
|
|
|
PresShell* presShell = GetPresShell();
|
|
if (presShell && !presShell->IsActive()) {
|
|
return true;
|
|
}
|
|
|
|
const bool isVisibilityHidden =
|
|
!aFrame.IsVisibleOrMayHaveVisibleDescendants();
|
|
const bool canOptimizeAwayVisibility =
|
|
isVisibilityHidden && !HasVisibilityChange();
|
|
|
|
const bool invisible = canOptimizeAwayVisibility ||
|
|
CanOptimizeAwayDueToOpacity(*this, aFrame) ||
|
|
aFrame.IsScrolledOutOfView();
|
|
if (!invisible) {
|
|
return false;
|
|
}
|
|
|
|
// If there are no overflow change hints, we don't need to worry about
|
|
// unthrottling the animation periodically to update scrollbar positions for
|
|
// the overflow region.
|
|
if (!HasPropertiesThatMightAffectOverflow()) {
|
|
return true;
|
|
}
|
|
|
|
// Don't throttle finite animations since the animation might suddenly
|
|
// come into view and if it was throttled it will be out-of-sync.
|
|
if (HasFiniteActiveDuration()) {
|
|
return false;
|
|
}
|
|
|
|
return isVisibilityHidden ? CanThrottleOverflowChangesInScrollable(aFrame)
|
|
: CanThrottleOverflowChanges(aFrame);
|
|
}
|
|
|
|
bool KeyframeEffect::CanThrottle() const {
|
|
// Unthrottle if we are not in effect or current. This will be the case when
|
|
// our owning animation has finished, is idle, or when we are in the delay
|
|
// phase (but without a backwards fill). In each case the computed progress
|
|
// value produced on each tick will be the same so we will skip requesting
|
|
// unnecessary restyles in NotifyAnimationTimingUpdated. Any calls we *do* get
|
|
// here will be because of a change in state (e.g. we are newly finished or
|
|
// newly no longer in effect) in which case we shouldn't throttle the sample.
|
|
if (!IsInEffect() || !IsCurrent()) {
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* const frame = GetStyleFrame();
|
|
if (!frame) {
|
|
// There are two possible cases here.
|
|
// a) No target element
|
|
// b) The target element has no frame, e.g. because it is in a display:none
|
|
// subtree.
|
|
// In either case we can throttle the animation because there is no
|
|
// need to update on the main thread.
|
|
return true;
|
|
}
|
|
|
|
// Do not throttle any animations during print preview.
|
|
if (frame->PresContext()->IsPrintingOrPrintPreview()) {
|
|
return false;
|
|
}
|
|
|
|
if (CanThrottleIfNotVisible(*frame)) {
|
|
return true;
|
|
}
|
|
|
|
EffectSet* effectSet = nullptr;
|
|
for (const AnimationProperty& property : mProperties) {
|
|
if (!property.mIsRunningOnCompositor) {
|
|
return false;
|
|
}
|
|
|
|
MOZ_ASSERT(nsCSSPropertyIDSet::CompositorAnimatables().HasProperty(
|
|
property.mProperty),
|
|
"The property should be able to run on the compositor");
|
|
if (!effectSet) {
|
|
effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
MOZ_ASSERT(effectSet,
|
|
"CanThrottle should be called on an effect "
|
|
"associated with a target element");
|
|
}
|
|
MOZ_ASSERT(HasEffectiveAnimationOfProperty(property.mProperty, *effectSet),
|
|
"There should be an effective animation of the property while "
|
|
"it is marked as being run on the compositor");
|
|
|
|
DisplayItemType displayItemType =
|
|
LayerAnimationInfo::GetDisplayItemTypeForProperty(property.mProperty);
|
|
|
|
// Note that AnimationInfo::GetGenarationFromFrame() is supposed to work
|
|
// with the primary frame instead of the style frame.
|
|
Maybe<uint64_t> generation = layers::AnimationInfo::GetGenerationFromFrame(
|
|
GetPrimaryFrame(), displayItemType);
|
|
// Unthrottle if the animation needs to be brought up to date
|
|
if (!generation || effectSet->GetAnimationGeneration() != *generation) {
|
|
return false;
|
|
}
|
|
|
|
// If this is a transform animation that affects the overflow region,
|
|
// we should unthrottle the animation periodically.
|
|
if (HasPropertiesThatMightAffectOverflow() &&
|
|
!CanThrottleOverflowChangesInScrollable(*frame)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool KeyframeEffect::CanThrottleOverflowChanges(const nsIFrame& aFrame) const {
|
|
TimeStamp now = aFrame.PresContext()->RefreshDriver()->MostRecentRefresh();
|
|
|
|
EffectSet* effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
MOZ_ASSERT(effectSet,
|
|
"CanOverflowTransformChanges is expected to be called"
|
|
" on an effect in an effect set");
|
|
MOZ_ASSERT(mAnimation,
|
|
"CanOverflowTransformChanges is expected to be called"
|
|
" on an effect with a parent animation");
|
|
TimeStamp lastSyncTime = effectSet->LastOverflowAnimationSyncTime();
|
|
// If this animation can cause overflow, we can throttle some of the ticks.
|
|
return (!lastSyncTime.IsNull() &&
|
|
(now - lastSyncTime) < OverflowRegionRefreshInterval());
|
|
}
|
|
|
|
bool KeyframeEffect::CanThrottleOverflowChangesInScrollable(
|
|
nsIFrame& aFrame) const {
|
|
// If the target element is not associated with any documents, we don't care
|
|
// it.
|
|
Document* doc = GetRenderedDocument();
|
|
if (!doc) {
|
|
return true;
|
|
}
|
|
|
|
bool hasIntersectionObservers = doc->HasIntersectionObservers();
|
|
|
|
// If we know that the animation cannot cause overflow,
|
|
// we can just disable flushes for this animation.
|
|
|
|
// If we don't show scrollbars and have no intersection observers, we don't
|
|
// care about overflow.
|
|
if (LookAndFeel::GetInt(LookAndFeel::IntID::ShowHideScrollbars) == 0 &&
|
|
!hasIntersectionObservers) {
|
|
return true;
|
|
}
|
|
|
|
if (CanThrottleOverflowChanges(aFrame)) {
|
|
return true;
|
|
}
|
|
|
|
// If we have any intersection observers, we unthrottle this transform
|
|
// animation periodically.
|
|
if (hasIntersectionObservers) {
|
|
return false;
|
|
}
|
|
|
|
// If the nearest scrollable ancestor has overflow:hidden,
|
|
// we don't care about overflow.
|
|
nsIScrollableFrame* scrollable =
|
|
nsLayoutUtils::GetNearestScrollableFrame(&aFrame);
|
|
if (!scrollable) {
|
|
return true;
|
|
}
|
|
|
|
ScrollStyles ss = scrollable->GetScrollStyles();
|
|
if (ss.mVertical == StyleOverflow::Hidden &&
|
|
ss.mHorizontal == StyleOverflow::Hidden &&
|
|
scrollable->GetLogicalScrollPosition() == nsPoint(0, 0)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* KeyframeEffect::GetStyleFrame() const {
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) {
|
|
return nullptr;
|
|
}
|
|
|
|
return nsLayoutUtils::GetStyleFrame(frame);
|
|
}
|
|
|
|
nsIFrame* KeyframeEffect::GetPrimaryFrame() const {
|
|
nsIFrame* frame = nullptr;
|
|
if (!mTarget) {
|
|
return frame;
|
|
}
|
|
|
|
if (mTarget.mPseudoType == PseudoStyleType::before) {
|
|
frame = nsLayoutUtils::GetBeforeFrame(mTarget.mElement);
|
|
} else if (mTarget.mPseudoType == PseudoStyleType::after) {
|
|
frame = nsLayoutUtils::GetAfterFrame(mTarget.mElement);
|
|
} else if (mTarget.mPseudoType == PseudoStyleType::marker) {
|
|
frame = nsLayoutUtils::GetMarkerFrame(mTarget.mElement);
|
|
} else {
|
|
frame = mTarget.mElement->GetPrimaryFrame();
|
|
MOZ_ASSERT(mTarget.mPseudoType == PseudoStyleType::NotPseudo,
|
|
"unknown mTarget.mPseudoType");
|
|
}
|
|
|
|
return frame;
|
|
}
|
|
|
|
Document* KeyframeEffect::GetRenderedDocument() const {
|
|
if (!mTarget) {
|
|
return nullptr;
|
|
}
|
|
return mTarget.mElement->GetComposedDoc();
|
|
}
|
|
|
|
PresShell* KeyframeEffect::GetPresShell() const {
|
|
Document* doc = GetRenderedDocument();
|
|
if (!doc) {
|
|
return nullptr;
|
|
}
|
|
return doc->GetPresShell();
|
|
}
|
|
|
|
/* static */
|
|
bool KeyframeEffect::IsGeometricProperty(const nsCSSPropertyID aProperty) {
|
|
MOZ_ASSERT(!nsCSSProps::IsShorthand(aProperty),
|
|
"Property should be a longhand property");
|
|
|
|
switch (aProperty) {
|
|
case eCSSProperty_bottom:
|
|
case eCSSProperty_height:
|
|
case eCSSProperty_left:
|
|
case eCSSProperty_margin_bottom:
|
|
case eCSSProperty_margin_left:
|
|
case eCSSProperty_margin_right:
|
|
case eCSSProperty_margin_top:
|
|
case eCSSProperty_padding_bottom:
|
|
case eCSSProperty_padding_left:
|
|
case eCSSProperty_padding_right:
|
|
case eCSSProperty_padding_top:
|
|
case eCSSProperty_right:
|
|
case eCSSProperty_top:
|
|
case eCSSProperty_width:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
bool KeyframeEffect::CanAnimateTransformOnCompositor(
|
|
const nsIFrame* aFrame,
|
|
AnimationPerformanceWarning::Type& aPerformanceWarning /* out */) {
|
|
// In some cases, such as when we are simply collecting all the compositor
|
|
// animations regardless of the frame on which they run in order to calculate
|
|
// change hints, |aFrame| will be the style frame. However, even in that case
|
|
// we should look at the primary frame since that is where the transform will
|
|
// be applied.
|
|
const nsIFrame* primaryFrame =
|
|
nsLayoutUtils::GetPrimaryFrameFromStyleFrame(aFrame);
|
|
|
|
// Note that testing BackfaceIsHidden() is not a sufficient test for
|
|
// what we need for animating backface-visibility correctly if we
|
|
// remove the above test for Extend3DContext(); that would require
|
|
// looking at backface-visibility on descendants as well. See bug 1186204.
|
|
if (primaryFrame->BackfaceIsHidden()) {
|
|
aPerformanceWarning =
|
|
AnimationPerformanceWarning::Type::TransformBackfaceVisibilityHidden;
|
|
return false;
|
|
}
|
|
// Async 'transform' animations of aFrames with SVG transforms is not
|
|
// supported. See bug 779599.
|
|
if (primaryFrame->IsSVGTransformed()) {
|
|
aPerformanceWarning = AnimationPerformanceWarning::Type::TransformSVG;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool KeyframeEffect::ShouldBlockAsyncTransformAnimations(
|
|
const nsIFrame* aFrame, const nsCSSPropertyIDSet& aPropertySet,
|
|
AnimationPerformanceWarning::Type& aPerformanceWarning /* out */) const {
|
|
EffectSet* effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
// The various transform properties ('transform', 'scale' etc.) get combined
|
|
// on the compositor.
|
|
//
|
|
// As a result, if we have an animation of 'scale' and 'translate', but the
|
|
// 'translate' property is covered by an !important rule, we will not be
|
|
// able to combine the result on the compositor since we won't have the
|
|
// !important rule to incorporate. In that case we should run all the
|
|
// transform-related animations on the main thread (where we have the
|
|
// !important rule).
|
|
nsCSSPropertyIDSet blockedProperties =
|
|
effectSet->PropertiesWithImportantRules().Intersect(
|
|
effectSet->PropertiesForAnimationsLevel());
|
|
if (blockedProperties.Intersects(aPropertySet)) {
|
|
aPerformanceWarning =
|
|
AnimationPerformanceWarning::Type::TransformIsBlockedByImportantRules;
|
|
return true;
|
|
}
|
|
|
|
const bool enableMainthreadSynchronizationWithGeometricAnimations =
|
|
StaticPrefs::
|
|
dom_animations_mainthread_synchronization_with_geometric_animations();
|
|
|
|
for (const AnimationProperty& property : mProperties) {
|
|
// If there is a property for animations level that is overridden by
|
|
// !important rules, it should not block other animations from running
|
|
// on the compositor.
|
|
// NOTE: We don't currently check for !important rules for properties that
|
|
// don't run on the compositor. As result such properties (e.g. margin-left)
|
|
// can still block async animations even if they are overridden by
|
|
// !important rules.
|
|
if (effectSet &&
|
|
effectSet->PropertiesWithImportantRules().HasProperty(
|
|
property.mProperty) &&
|
|
effectSet->PropertiesForAnimationsLevel().HasProperty(
|
|
property.mProperty)) {
|
|
continue;
|
|
}
|
|
// Check for geometric properties
|
|
if (enableMainthreadSynchronizationWithGeometricAnimations &&
|
|
IsGeometricProperty(property.mProperty)) {
|
|
aPerformanceWarning =
|
|
AnimationPerformanceWarning::Type::TransformWithGeometricProperties;
|
|
return true;
|
|
}
|
|
|
|
// Check for unsupported transform animations
|
|
if (LayerAnimationInfo::GetCSSPropertiesFor(DisplayItemType::TYPE_TRANSFORM)
|
|
.HasProperty(property.mProperty)) {
|
|
if (!CanAnimateTransformOnCompositor(aFrame, aPerformanceWarning)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool KeyframeEffect::HasGeometricProperties() const {
|
|
for (const AnimationProperty& property : mProperties) {
|
|
if (IsGeometricProperty(property.mProperty)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void KeyframeEffect::SetPerformanceWarning(
|
|
const nsCSSPropertyIDSet& aPropertySet,
|
|
const AnimationPerformanceWarning& aWarning) {
|
|
nsCSSPropertyIDSet curr = aPropertySet;
|
|
for (AnimationProperty& property : mProperties) {
|
|
if (!curr.HasProperty(property.mProperty)) {
|
|
continue;
|
|
}
|
|
property.SetPerformanceWarning(aWarning, mTarget.mElement);
|
|
curr.RemoveProperty(property.mProperty);
|
|
if (curr.IsEmpty()) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
already_AddRefed<ComputedStyle>
|
|
KeyframeEffect::CreateComputedStyleForAnimationValue(
|
|
nsCSSPropertyID aProperty, const AnimationValue& aValue,
|
|
nsPresContext* aPresContext, const ComputedStyle* aBaseComputedStyle) {
|
|
MOZ_ASSERT(aBaseComputedStyle,
|
|
"CreateComputedStyleForAnimationValue needs to be called "
|
|
"with a valid ComputedStyle");
|
|
|
|
Element* elementForResolve = EffectCompositor::GetElementToRestyle(
|
|
mTarget.mElement, mTarget.mPseudoType);
|
|
// The element may be null if, for example, we target a pseudo-element that no
|
|
// longer exists.
|
|
if (!elementForResolve) {
|
|
return nullptr;
|
|
}
|
|
|
|
ServoStyleSet* styleSet = aPresContext->StyleSet();
|
|
return styleSet->ResolveServoStyleByAddingAnimation(
|
|
elementForResolve, aBaseComputedStyle, aValue.mServo);
|
|
}
|
|
|
|
void KeyframeEffect::CalculateCumulativeChangeHint(
|
|
const ComputedStyle* aComputedStyle) {
|
|
mCumulativeChangeHint = nsChangeHint(0);
|
|
mNeedsStyleData = false;
|
|
|
|
nsPresContext* presContext =
|
|
mTarget ? nsContentUtils::GetContextForContent(mTarget.mElement)
|
|
: nullptr;
|
|
if (!presContext) {
|
|
// Change hints make no sense if we're not rendered.
|
|
//
|
|
// Actually, we cannot even post them anywhere.
|
|
mNeedsStyleData = true;
|
|
return;
|
|
}
|
|
|
|
for (const AnimationProperty& property : mProperties) {
|
|
// For opacity property we don't produce any change hints that are not
|
|
// included in nsChangeHint_Hints_CanIgnoreIfNotVisible so we can throttle
|
|
// opacity animations regardless of the change they produce. This
|
|
// optimization is particularly important since it allows us to throttle
|
|
// opacity animations with missing 0%/100% keyframes.
|
|
if (property.mProperty == eCSSProperty_opacity) {
|
|
continue;
|
|
}
|
|
|
|
for (const AnimationPropertySegment& segment : property.mSegments) {
|
|
// In case composite operation is not 'replace' or value is null,
|
|
// we can't throttle animations which will not cause any layout changes
|
|
// on invisible elements because we can't calculate the change hint for
|
|
// such properties until we compose it.
|
|
if (!segment.HasReplaceableValues()) {
|
|
if (!nsCSSPropertyIDSet::TransformLikeProperties().HasProperty(
|
|
property.mProperty)) {
|
|
mCumulativeChangeHint = ~nsChangeHint_Hints_CanIgnoreIfNotVisible;
|
|
return;
|
|
}
|
|
// We try a little harder to optimize transform animations simply
|
|
// because they are so common (the second-most commonly animated
|
|
// property at the time of writing). So if we encounter a transform
|
|
// segment that needs composing with the underlying value, we just add
|
|
// all the change hints a transform animation is known to be able to
|
|
// generate.
|
|
mCumulativeChangeHint |=
|
|
nsChangeHint_ComprehensiveAddOrRemoveTransform |
|
|
nsChangeHint_UpdatePostTransformOverflow |
|
|
nsChangeHint_UpdateTransformLayer;
|
|
continue;
|
|
}
|
|
|
|
RefPtr<ComputedStyle> fromContext = CreateComputedStyleForAnimationValue(
|
|
property.mProperty, segment.mFromValue, presContext, aComputedStyle);
|
|
if (!fromContext) {
|
|
mCumulativeChangeHint = ~nsChangeHint_Hints_CanIgnoreIfNotVisible;
|
|
mNeedsStyleData = true;
|
|
return;
|
|
}
|
|
|
|
RefPtr<ComputedStyle> toContext = CreateComputedStyleForAnimationValue(
|
|
property.mProperty, segment.mToValue, presContext, aComputedStyle);
|
|
if (!toContext) {
|
|
mCumulativeChangeHint = ~nsChangeHint_Hints_CanIgnoreIfNotVisible;
|
|
mNeedsStyleData = true;
|
|
return;
|
|
}
|
|
|
|
uint32_t equalStructs = 0;
|
|
nsChangeHint changeHint =
|
|
fromContext->CalcStyleDifference(*toContext, &equalStructs);
|
|
|
|
mCumulativeChangeHint |= changeHint;
|
|
}
|
|
}
|
|
}
|
|
|
|
void KeyframeEffect::SetAnimation(Animation* aAnimation) {
|
|
if (mAnimation == aAnimation) {
|
|
return;
|
|
}
|
|
|
|
// Restyle for the old animation.
|
|
RequestRestyle(EffectCompositor::RestyleType::Layer);
|
|
|
|
mAnimation = aAnimation;
|
|
|
|
// The order of these function calls is important:
|
|
// NotifyAnimationTimingUpdated() need the updated mIsRelevant flag to check
|
|
// if it should create the effectSet or not, and MarkCascadeNeedsUpdate()
|
|
// needs a valid effectSet, so we should call them in this order.
|
|
if (mAnimation) {
|
|
mAnimation->UpdateRelevance();
|
|
}
|
|
NotifyAnimationTimingUpdated(PostRestyleMode::IfNeeded);
|
|
if (mAnimation) {
|
|
MarkCascadeNeedsUpdate();
|
|
}
|
|
}
|
|
|
|
bool KeyframeEffect::CanIgnoreIfNotVisible() const {
|
|
if (!StaticPrefs::dom_animations_offscreen_throttling()) {
|
|
return false;
|
|
}
|
|
|
|
// FIXME: For further sophisticated optimization we need to check
|
|
// change hint on the segment corresponding to computedTiming.progress.
|
|
return NS_IsHintSubset(mCumulativeChangeHint,
|
|
nsChangeHint_Hints_CanIgnoreIfNotVisible);
|
|
}
|
|
|
|
void KeyframeEffect::MarkCascadeNeedsUpdate() {
|
|
if (!mTarget) {
|
|
return;
|
|
}
|
|
|
|
EffectSet* effectSet =
|
|
EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
if (!effectSet) {
|
|
return;
|
|
}
|
|
effectSet->MarkCascadeNeedsUpdate();
|
|
}
|
|
|
|
/* static */
|
|
bool KeyframeEffect::HasComputedTimingChanged(
|
|
const ComputedTiming& aComputedTiming,
|
|
IterationCompositeOperation aIterationComposite,
|
|
const Nullable<double>& aProgressOnLastCompose,
|
|
uint64_t aCurrentIterationOnLastCompose) {
|
|
// Typically we don't need to request a restyle if the progress hasn't
|
|
// changed since the last call to ComposeStyle. The one exception is if the
|
|
// iteration composite mode is 'accumulate' and the current iteration has
|
|
// changed, since that will often produce a different result.
|
|
return aComputedTiming.mProgress != aProgressOnLastCompose ||
|
|
(aIterationComposite == IterationCompositeOperation::Accumulate &&
|
|
aComputedTiming.mCurrentIteration != aCurrentIterationOnLastCompose);
|
|
}
|
|
|
|
bool KeyframeEffect::HasComputedTimingChanged() const {
|
|
ComputedTiming computedTiming = GetComputedTiming();
|
|
return HasComputedTimingChanged(
|
|
computedTiming, mEffectOptions.mIterationComposite,
|
|
mProgressOnLastCompose, mCurrentIterationOnLastCompose);
|
|
}
|
|
|
|
bool KeyframeEffect::ContainsAnimatedScale(const nsIFrame* aFrame) const {
|
|
// For display:table content, transform animations run on the table wrapper
|
|
// frame. If we are being passed a frame that doesn't support transforms
|
|
// (i.e. the inner table frame) we could just return false, but it possibly
|
|
// means we looked up the wrong EffectSet so for now we just assert instead.
|
|
MOZ_ASSERT(aFrame && aFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms),
|
|
"We should be passed a frame that supports transforms");
|
|
|
|
if (!IsCurrent()) {
|
|
return false;
|
|
}
|
|
|
|
if (!mAnimation ||
|
|
mAnimation->ReplaceState() == AnimationReplaceState::Removed) {
|
|
return false;
|
|
}
|
|
|
|
for (const AnimationProperty& prop : mProperties) {
|
|
if (prop.mProperty != eCSSProperty_transform &&
|
|
prop.mProperty != eCSSProperty_scale &&
|
|
prop.mProperty != eCSSProperty_rotate) {
|
|
continue;
|
|
}
|
|
|
|
AnimationValue baseStyle = BaseStyle(prop.mProperty);
|
|
if (!baseStyle.IsNull()) {
|
|
gfx::Size size = baseStyle.GetScaleValue(aFrame);
|
|
if (size != gfx::Size(1.0f, 1.0f)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// This is actually overestimate because there are some cases that combining
|
|
// the base value and from/to value produces 1:1 scale. But it doesn't
|
|
// really matter.
|
|
for (const AnimationPropertySegment& segment : prop.mSegments) {
|
|
if (!segment.mFromValue.IsNull()) {
|
|
gfx::Size from = segment.mFromValue.GetScaleValue(aFrame);
|
|
if (from != gfx::Size(1.0f, 1.0f)) {
|
|
return true;
|
|
}
|
|
}
|
|
if (!segment.mToValue.IsNull()) {
|
|
gfx::Size to = segment.mToValue.GetScaleValue(aFrame);
|
|
if (to != gfx::Size(1.0f, 1.0f)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void KeyframeEffect::UpdateEffectSet(EffectSet* aEffectSet) const {
|
|
if (!mInEffectSet) {
|
|
return;
|
|
}
|
|
|
|
EffectSet* effectSet =
|
|
aEffectSet
|
|
? aEffectSet
|
|
: EffectSet::GetEffectSet(mTarget.mElement, mTarget.mPseudoType);
|
|
if (!effectSet) {
|
|
return;
|
|
}
|
|
|
|
nsIFrame* styleFrame = GetStyleFrame();
|
|
if (HasAnimationOfPropertySet(nsCSSPropertyIDSet::OpacityProperties())) {
|
|
effectSet->SetMayHaveOpacityAnimation();
|
|
EnumerateContinuationsOrIBSplitSiblings(styleFrame, [](nsIFrame* aFrame) {
|
|
aFrame->SetMayHaveOpacityAnimation();
|
|
});
|
|
}
|
|
|
|
nsIFrame* primaryFrame = GetPrimaryFrame();
|
|
if (HasAnimationOfPropertySet(
|
|
nsCSSPropertyIDSet::TransformLikeProperties())) {
|
|
effectSet->SetMayHaveTransformAnimation();
|
|
// For table frames, it's not clear if we should iterate over the
|
|
// continuations of the table wrapper or the inner table frame.
|
|
//
|
|
// Fortunately, this is not currently an issue because we only split tables
|
|
// when printing (page breaks) where we don't run animations.
|
|
EnumerateContinuationsOrIBSplitSiblings(primaryFrame, [](nsIFrame* aFrame) {
|
|
aFrame->SetMayHaveTransformAnimation();
|
|
});
|
|
}
|
|
}
|
|
|
|
KeyframeEffect::MatchForCompositor KeyframeEffect::IsMatchForCompositor(
|
|
const nsCSSPropertyIDSet& aPropertySet, const nsIFrame* aFrame,
|
|
const EffectSet& aEffects,
|
|
AnimationPerformanceWarning::Type& aPerformanceWarning /* out */) const {
|
|
MOZ_ASSERT(mAnimation);
|
|
|
|
if (!mAnimation->IsRelevant()) {
|
|
return KeyframeEffect::MatchForCompositor::No;
|
|
}
|
|
|
|
if (mAnimation->ShouldBeSynchronizedWithMainThread(aPropertySet, aFrame,
|
|
aPerformanceWarning)) {
|
|
// For a given |aFrame|, we don't want some animations of |aProperty| to
|
|
// run on the compositor and others to run on the main thread, so if any
|
|
// need to be synchronized with the main thread, run them all there.
|
|
return KeyframeEffect::MatchForCompositor::NoAndBlockThisProperty;
|
|
}
|
|
|
|
if (!HasEffectiveAnimationOfPropertySet(aPropertySet, aEffects)) {
|
|
return KeyframeEffect::MatchForCompositor::No;
|
|
}
|
|
|
|
// If we know that the animation is not visible, we don't need to send the
|
|
// animation to the compositor.
|
|
if (!aFrame->IsVisibleOrMayHaveVisibleDescendants() ||
|
|
IsDefinitivelyInvisibleDueToOpacity(*aFrame) ||
|
|
aFrame->IsScrolledOutOfView()) {
|
|
return KeyframeEffect::MatchForCompositor::NoAndBlockThisProperty;
|
|
}
|
|
|
|
if (aPropertySet.HasProperty(eCSSProperty_background_color)) {
|
|
if (!StaticPrefs::gfx_omta_background_color()) {
|
|
return KeyframeEffect::MatchForCompositor::No;
|
|
}
|
|
|
|
// We don't yet support off-main-thread background-color animations on
|
|
// canvas frame or on <body> which genarate nsDisplayCanvasBackgroundColor
|
|
// or nsDisplaySolidColor display item.
|
|
if (nsCSSRendering::IsCanvasFrame(aFrame) ||
|
|
(aFrame->GetContent() &&
|
|
aFrame->GetContent()->IsHTMLElement(nsGkAtoms::body))) {
|
|
return KeyframeEffect::MatchForCompositor::No;
|
|
}
|
|
}
|
|
|
|
// We can't run this background color animation on the compositor if there
|
|
// is any `current-color` keyframe.
|
|
if (mHasCurrentColor) {
|
|
aPerformanceWarning = AnimationPerformanceWarning::Type::HasCurrentColor;
|
|
return KeyframeEffect::MatchForCompositor::NoAndBlockThisProperty;
|
|
}
|
|
|
|
return mAnimation->IsPlaying() ? KeyframeEffect::MatchForCompositor::Yes
|
|
: KeyframeEffect::MatchForCompositor::IfNeeded;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|