mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
cc8f4d6ac3
This patch introduces a method GetComputedTiming that calls GetComputedTimingAt supplying the current time of the animation's timeline. We still keep the GetComputedTimingAt static method since it is used for off-main thread animation. Furthermore, we keep the second argument to GetComputedTiming--the animation's timing properties--since on some occasions we want to override those properties (ElementPropertyTransition::ValuePortionFor does this). We could also add another overload that also supplies the animation's timing properties but that can happen as a separate step.
1070 lines
35 KiB
C++
1070 lines
35 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AnimationCommon.h"
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#include "nsTransitionManager.h"
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#include "nsAnimationManager.h"
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#include "mozilla/dom/AnimationPlayerBinding.h"
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#include "ActiveLayerTracker.h"
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#include "gfxPlatform.h"
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#include "nsRuleData.h"
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#include "nsCSSPropertySet.h"
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#include "nsCSSValue.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsStyleContext.h"
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#include "nsIFrame.h"
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#include "nsLayoutUtils.h"
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#include "mozilla/LookAndFeel.h"
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#include "Layers.h"
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#include "FrameLayerBuilder.h"
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#include "nsDisplayList.h"
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#include "mozilla/MemoryReporting.h"
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#include "RestyleManager.h"
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#include "nsStyleSet.h"
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#include "nsStyleChangeList.h"
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using mozilla::layers::Layer;
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namespace mozilla {
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/* static */ bool
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IsGeometricProperty(nsCSSProperty aProperty)
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{
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switch (aProperty) {
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case eCSSProperty_bottom:
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case eCSSProperty_height:
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case eCSSProperty_left:
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case eCSSProperty_right:
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case eCSSProperty_top:
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case eCSSProperty_width:
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return true;
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default:
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return false;
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}
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}
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namespace css {
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CommonAnimationManager::CommonAnimationManager(nsPresContext *aPresContext)
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: mPresContext(aPresContext)
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{
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PR_INIT_CLIST(&mElementCollections);
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}
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CommonAnimationManager::~CommonAnimationManager()
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{
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NS_ABORT_IF_FALSE(!mPresContext, "Disconnect should have been called");
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}
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void
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CommonAnimationManager::Disconnect()
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{
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// Content nodes might outlive the transition or animation manager.
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RemoveAllElementCollections();
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mPresContext = nullptr;
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}
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void
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CommonAnimationManager::RemoveAllElementCollections()
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{
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while (!PR_CLIST_IS_EMPTY(&mElementCollections)) {
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ElementAnimationCollection* head =
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static_cast<ElementAnimationCollection*>(
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PR_LIST_HEAD(&mElementCollections));
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head->Destroy();
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}
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}
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ElementAnimationCollection*
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CommonAnimationManager::GetAnimationsForCompositor(nsIContent* aContent,
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nsIAtom* aElementProperty,
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nsCSSProperty aProperty)
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{
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if (!aContent->MayHaveAnimations())
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return nullptr;
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ElementAnimationCollection* collection =
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static_cast<ElementAnimationCollection*>(
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aContent->GetProperty(aElementProperty));
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if (!collection ||
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!collection->HasAnimationOfProperty(aProperty) ||
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!collection->CanPerformOnCompositorThread(
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ElementAnimationCollection::CanAnimate_AllowPartial)) {
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return nullptr;
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}
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// This animation can be done on the compositor.
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// Mark the frame as active, in case we are able to throttle this animation.
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nsIFrame* frame = nsLayoutUtils::GetStyleFrame(collection->mElement);
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if (frame) {
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if (aProperty == eCSSProperty_opacity) {
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ActiveLayerTracker::NotifyAnimated(frame, eCSSProperty_opacity);
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} else if (aProperty == eCSSProperty_transform) {
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ActiveLayerTracker::NotifyAnimated(frame, eCSSProperty_transform);
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}
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}
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return collection;
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}
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/*
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* nsISupports implementation
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*/
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NS_IMPL_ISUPPORTS(CommonAnimationManager, nsIStyleRuleProcessor)
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nsRestyleHint
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CommonAnimationManager::HasStateDependentStyle(StateRuleProcessorData* aData)
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{
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return nsRestyleHint(0);
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}
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nsRestyleHint
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CommonAnimationManager::HasStateDependentStyle(PseudoElementStateRuleProcessorData* aData)
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{
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return nsRestyleHint(0);
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}
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bool
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CommonAnimationManager::HasDocumentStateDependentStyle(StateRuleProcessorData* aData)
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{
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return false;
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}
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nsRestyleHint
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CommonAnimationManager::HasAttributeDependentStyle(AttributeRuleProcessorData* aData)
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{
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return nsRestyleHint(0);
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}
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/* virtual */ bool
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CommonAnimationManager::MediumFeaturesChanged(nsPresContext* aPresContext)
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{
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return false;
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}
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/* virtual */ size_t
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CommonAnimationManager::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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// Measurement of the following members may be added later if DMD finds it is
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// worthwhile:
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// - mElementCollections
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//
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// The following members are not measured
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// - mPresContext, because it's non-owning
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return 0;
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}
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/* virtual */ size_t
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CommonAnimationManager::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
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}
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/* static */ bool
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CommonAnimationManager::ExtractComputedValueForTransition(
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nsCSSProperty aProperty,
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nsStyleContext* aStyleContext,
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StyleAnimationValue& aComputedValue)
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{
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bool result = StyleAnimationValue::ExtractComputedValue(aProperty,
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aStyleContext,
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aComputedValue);
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if (aProperty == eCSSProperty_visibility) {
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NS_ABORT_IF_FALSE(aComputedValue.GetUnit() ==
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StyleAnimationValue::eUnit_Enumerated,
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"unexpected unit");
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aComputedValue.SetIntValue(aComputedValue.GetIntValue(),
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StyleAnimationValue::eUnit_Visibility);
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}
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return result;
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}
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already_AddRefed<nsStyleContext>
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CommonAnimationManager::ReparentContent(nsIContent* aContent,
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nsStyleContext* aParentStyle)
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{
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nsStyleSet* styleSet = mPresContext->PresShell()->StyleSet();
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nsIFrame* primaryFrame = nsLayoutUtils::GetStyleFrame(aContent);
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if (!primaryFrame) {
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return nullptr;
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}
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dom::Element* element = aContent->IsElement()
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? aContent->AsElement()
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: nullptr;
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nsRefPtr<nsStyleContext> newStyle =
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styleSet->ReparentStyleContext(primaryFrame->StyleContext(),
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aParentStyle, element);
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primaryFrame->SetStyleContext(newStyle);
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ReparentBeforeAndAfter(element, primaryFrame, newStyle, styleSet);
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return newStyle.forget();
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}
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/* static */ void
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CommonAnimationManager::ReparentBeforeAndAfter(dom::Element* aElement,
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nsIFrame* aPrimaryFrame,
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nsStyleContext* aNewStyle,
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nsStyleSet* aStyleSet)
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{
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if (nsIFrame* before = nsLayoutUtils::GetBeforeFrame(aPrimaryFrame)) {
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nsRefPtr<nsStyleContext> beforeStyle =
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aStyleSet->ReparentStyleContext(before->StyleContext(),
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aNewStyle, aElement);
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before->SetStyleContext(beforeStyle);
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}
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if (nsIFrame* after = nsLayoutUtils::GetBeforeFrame(aPrimaryFrame)) {
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nsRefPtr<nsStyleContext> afterStyle =
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aStyleSet->ReparentStyleContext(after->StyleContext(),
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aNewStyle, aElement);
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after->SetStyleContext(afterStyle);
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}
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}
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nsStyleContext*
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CommonAnimationManager::UpdateThrottledStyle(dom::Element* aElement,
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nsStyleContext* aParentStyle,
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nsStyleChangeList& aChangeList)
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{
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NS_ASSERTION(mPresContext->TransitionManager()->GetElementTransitions(
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aElement,
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nsCSSPseudoElements::ePseudo_NotPseudoElement,
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false) ||
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mPresContext->AnimationManager()->GetElementAnimations(
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aElement,
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nsCSSPseudoElements::ePseudo_NotPseudoElement,
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false), "element not animated");
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nsIFrame* primaryFrame = nsLayoutUtils::GetStyleFrame(aElement);
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if (!primaryFrame) {
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return nullptr;
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}
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nsStyleContext* oldStyle = primaryFrame->StyleContext();
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nsRuleNode* ruleNode = oldStyle->RuleNode();
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nsTArray<nsStyleSet::RuleAndLevel> rules;
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do {
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if (ruleNode->IsRoot()) {
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break;
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}
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nsStyleSet::RuleAndLevel curRule;
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curRule.mLevel = ruleNode->GetLevel();
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if (curRule.mLevel == nsStyleSet::eAnimationSheet) {
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ElementAnimationCollection* collection =
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mPresContext->AnimationManager()->GetElementAnimations(
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aElement,
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oldStyle->GetPseudoType(),
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false);
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NS_ASSERTION(collection,
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"Rule has level eAnimationSheet without animation on manager");
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mPresContext->AnimationManager()->UpdateStyleAndEvents(
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collection, mPresContext->RefreshDriver()->MostRecentRefresh(),
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EnsureStyleRule_IsNotThrottled);
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curRule.mRule = collection->mStyleRule;
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} else if (curRule.mLevel == nsStyleSet::eTransitionSheet) {
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ElementAnimationCollection* collection =
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mPresContext->TransitionManager()->GetElementTransitions(
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aElement,
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oldStyle->GetPseudoType(),
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false);
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NS_ASSERTION(collection,
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"Rule has level eTransitionSheet without transition on manager");
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collection->EnsureStyleRuleFor(
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mPresContext->RefreshDriver()->MostRecentRefresh(),
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EnsureStyleRule_IsNotThrottled);
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curRule.mRule = collection->mStyleRule;
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} else {
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curRule.mRule = ruleNode->GetRule();
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}
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if (curRule.mRule) {
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rules.AppendElement(curRule);
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}
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} while ((ruleNode = ruleNode->GetParent()));
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nsRefPtr<nsStyleContext> newStyle = mPresContext->PresShell()->StyleSet()->
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ResolveStyleForRules(aParentStyle, oldStyle, rules);
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// We absolutely must call CalcStyleDifference in order to ensure the
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// new context has all the structs cached that the old context had.
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// We also need it for processing of the changes.
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nsChangeHint styleChange =
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oldStyle->CalcStyleDifference(newStyle, nsChangeHint(0));
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aChangeList.AppendChange(primaryFrame, primaryFrame->GetContent(),
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styleChange);
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primaryFrame->SetStyleContext(newStyle);
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ReparentBeforeAndAfter(aElement, primaryFrame, newStyle,
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mPresContext->PresShell()->StyleSet());
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return newStyle;
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}
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NS_IMPL_ISUPPORTS(AnimValuesStyleRule, nsIStyleRule)
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/* virtual */ void
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AnimValuesStyleRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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nsStyleContext *contextParent = aRuleData->mStyleContext->GetParent();
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if (contextParent && contextParent->HasPseudoElementData()) {
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// Don't apply transitions or animations to things inside of
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// pseudo-elements.
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// FIXME (Bug 522599): Add tests for this.
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return;
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}
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for (uint32_t i = 0, i_end = mPropertyValuePairs.Length(); i < i_end; ++i) {
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PropertyValuePair &cv = mPropertyValuePairs[i];
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if (aRuleData->mSIDs & nsCachedStyleData::GetBitForSID(
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nsCSSProps::kSIDTable[cv.mProperty]))
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{
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nsCSSValue *prop = aRuleData->ValueFor(cv.mProperty);
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if (prop->GetUnit() == eCSSUnit_Null) {
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#ifdef DEBUG
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bool ok =
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#endif
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StyleAnimationValue::UncomputeValue(cv.mProperty, cv.mValue, *prop);
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NS_ABORT_IF_FALSE(ok, "could not store computed value");
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}
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}
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}
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}
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#ifdef DEBUG
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/* virtual */ void
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AnimValuesStyleRule::List(FILE* out, int32_t aIndent) const
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{
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for (int32_t index = aIndent; --index >= 0; ) fputs(" ", out);
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fputs("[anim values] { ", out);
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for (uint32_t i = 0, i_end = mPropertyValuePairs.Length(); i < i_end; ++i) {
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const PropertyValuePair &pair = mPropertyValuePairs[i];
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nsAutoString value;
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StyleAnimationValue::UncomputeValue(pair.mProperty, pair.mValue, value);
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fprintf(out, "%s: %s; ", nsCSSProps::GetStringValue(pair.mProperty).get(),
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NS_ConvertUTF16toUTF8(value).get());
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}
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fputs("}\n", out);
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}
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#endif
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void
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ComputedTimingFunction::Init(const nsTimingFunction &aFunction)
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{
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mType = aFunction.mType;
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if (mType == nsTimingFunction::Function) {
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mTimingFunction.Init(aFunction.mFunc.mX1, aFunction.mFunc.mY1,
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aFunction.mFunc.mX2, aFunction.mFunc.mY2);
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} else {
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mSteps = aFunction.mSteps;
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}
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}
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static inline double
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StepEnd(uint32_t aSteps, double aPortion)
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{
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NS_ABORT_IF_FALSE(0.0 <= aPortion && aPortion <= 1.0, "out of range");
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uint32_t step = uint32_t(aPortion * aSteps); // floor
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return double(step) / double(aSteps);
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}
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double
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ComputedTimingFunction::GetValue(double aPortion) const
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{
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switch (mType) {
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case nsTimingFunction::Function:
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return mTimingFunction.GetSplineValue(aPortion);
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case nsTimingFunction::StepStart:
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// There are diagrams in the spec that seem to suggest this check
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// and the bounds point should not be symmetric with StepEnd, but
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// should actually step up at rather than immediately after the
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// fraction points. However, we rely on rounding negative values
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// up to zero, so we can't do that. And it's not clear the spec
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// really meant it.
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return 1.0 - StepEnd(mSteps, 1.0 - aPortion);
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default:
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NS_ABORT_IF_FALSE(false, "bad type");
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// fall through
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case nsTimingFunction::StepEnd:
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return StepEnd(mSteps, aPortion);
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}
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}
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} /* end sub-namespace css */
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// In the Web Animations model, the time fraction can be outside the range
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// [0.0, 1.0] but it shouldn't be Infinity.
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const double ComputedTiming::kNullTimeFraction =
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mozilla::PositiveInfinity<double>();
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(ElementAnimation, mTimeline)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(ElementAnimation, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(ElementAnimation, Release)
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JSObject*
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ElementAnimation::WrapObject(JSContext* aCx)
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{
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return dom::AnimationPlayerBinding::Wrap(aCx, this);
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}
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double
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ElementAnimation::StartTime() const
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{
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Nullable<double> startTime = mTimeline->ToTimelineTime(mStartTime);
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return startTime.IsNull() ? 0.0 : startTime.Value();
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}
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double
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ElementAnimation::CurrentTime() const
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{
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// In Web Animations, AnimationPlayers have a *current* time and Animations
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// have a *local* time. However, since we have a 1:1 correspondence between
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// AnimationPlayers and Animations, and since the startTime of *Animations*
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// (but not AnimationPlayers) is always 0, these are currently identical.
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Nullable<TimeDuration> currentTime = GetLocalTime();
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// The current time is currently only going to be null when don't have a
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// refresh driver (e.g. because we are in a display:none iframe).
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//
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// Web Animations says that in this case we should use a timeline time of
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// 0 (the "effective timeline time") and calculate the current time from that.
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// Doing that, however, requires storing the start time as an offset rather
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// than a timestamp so for now we just return 0.
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//
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// FIXME: Store player start time and pause start as offsets rather than
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// timestamps and return the appropriate current time when the timeline time
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// is null.
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if (currentTime.IsNull()) {
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return 0.0;
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}
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return currentTime.Value().ToMilliseconds();
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}
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bool
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ElementAnimation::IsRunning() const
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{
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if (IsPaused() || IsFinishedTransition()) {
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return false;
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}
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ComputedTiming computedTiming = GetComputedTiming(mTiming);
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return computedTiming.mPhase == ComputedTiming::AnimationPhase_Active;
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}
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bool
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ElementAnimation::IsCurrent() const
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{
|
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if (IsFinishedTransition()) {
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return false;
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}
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ComputedTiming computedTiming = GetComputedTiming(mTiming);
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return computedTiming.mPhase == ComputedTiming::AnimationPhase_Before ||
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computedTiming.mPhase == ComputedTiming::AnimationPhase_Active;
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}
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bool
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ElementAnimation::HasAnimationOfProperty(nsCSSProperty aProperty) const
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{
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for (uint32_t propIdx = 0, propEnd = mProperties.Length();
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propIdx != propEnd; ++propIdx) {
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if (aProperty == mProperties[propIdx].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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ComputedTiming
|
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ElementAnimation::GetComputedTimingAt(const Nullable<TimeDuration>& aLocalTime,
|
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const AnimationTiming& aTiming)
|
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{
|
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const TimeDuration zeroDuration;
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// Currently we expect negative durations to be picked up during CSS
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// parsing but when we start receiving timing parameters from other sources
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// we will need to clamp negative durations here.
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// For now, if we're hitting this it probably means we're overflowing
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// integer arithmetic in mozilla::TimeStamp.
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MOZ_ASSERT(aTiming.mIterationDuration >= zeroDuration,
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"Expecting iteration duration >= 0");
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// Always return the same object to benefit from return-value optimization.
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ComputedTiming result;
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result.mActiveDuration = ActiveDuration(aTiming);
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// The default constructor for ComputedTiming sets all other members to
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// values consistent with an animation that has not been sampled.
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if (aLocalTime.IsNull()) {
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return result;
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}
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const TimeDuration& localTime = aLocalTime.Value();
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|
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// When we finish exactly at the end of an iteration we need to report
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// the end of the final iteration and not the start of the next iteration
|
|
// so we set up a flag for that case.
|
|
bool isEndOfFinalIteration = false;
|
|
|
|
// Get the normalized time within the active interval.
|
|
TimeDuration activeTime;
|
|
if (localTime >= aTiming.mDelay + result.mActiveDuration) {
|
|
result.mPhase = ComputedTiming::AnimationPhase_After;
|
|
if (!aTiming.FillsForwards()) {
|
|
// The animation isn't active or filling at this time.
|
|
result.mTimeFraction = ComputedTiming::kNullTimeFraction;
|
|
return result;
|
|
}
|
|
activeTime = result.mActiveDuration;
|
|
// Note that infinity == floor(infinity) so this will also be true when we
|
|
// have finished an infinitely repeating animation of zero duration.
|
|
isEndOfFinalIteration =
|
|
aTiming.mIterationCount != 0.0 &&
|
|
aTiming.mIterationCount == floor(aTiming.mIterationCount);
|
|
} else if (localTime < aTiming.mDelay) {
|
|
result.mPhase = ComputedTiming::AnimationPhase_Before;
|
|
if (!aTiming.FillsBackwards()) {
|
|
// The animation isn't active or filling at this time.
|
|
result.mTimeFraction = ComputedTiming::kNullTimeFraction;
|
|
return result;
|
|
}
|
|
// activeTime is zero
|
|
} else {
|
|
MOZ_ASSERT(result.mActiveDuration != zeroDuration,
|
|
"How can we be in the middle of a zero-duration interval?");
|
|
result.mPhase = ComputedTiming::AnimationPhase_Active;
|
|
activeTime = localTime - aTiming.mDelay;
|
|
}
|
|
|
|
// Get the position within the current iteration.
|
|
TimeDuration iterationTime;
|
|
if (aTiming.mIterationDuration != zeroDuration) {
|
|
iterationTime = isEndOfFinalIteration
|
|
? aTiming.mIterationDuration
|
|
: activeTime % aTiming.mIterationDuration;
|
|
} /* else, iterationTime is zero */
|
|
|
|
// Determine the 0-based index of the current iteration.
|
|
if (isEndOfFinalIteration) {
|
|
result.mCurrentIteration =
|
|
aTiming.mIterationCount == NS_IEEEPositiveInfinity()
|
|
? UINT64_MAX // FIXME: When we return this via the API we'll need
|
|
// to make sure it ends up being infinity.
|
|
: static_cast<uint64_t>(aTiming.mIterationCount) - 1;
|
|
} else if (activeTime == zeroDuration) {
|
|
// If the active time is zero we're either in the first iteration
|
|
// (including filling backwards) or we have finished an animation with an
|
|
// iteration duration of zero that is filling forwards (but we're not at
|
|
// the exact end of an iteration since we deal with that above).
|
|
result.mCurrentIteration =
|
|
result.mPhase == ComputedTiming::AnimationPhase_After
|
|
? static_cast<uint64_t>(aTiming.mIterationCount) // floor
|
|
: 0;
|
|
} else {
|
|
result.mCurrentIteration =
|
|
static_cast<uint64_t>(activeTime / aTiming.mIterationDuration); // floor
|
|
}
|
|
|
|
// Normalize the iteration time into a fraction of the iteration duration.
|
|
if (result.mPhase == ComputedTiming::AnimationPhase_Before) {
|
|
result.mTimeFraction = 0.0;
|
|
} else if (result.mPhase == ComputedTiming::AnimationPhase_After) {
|
|
result.mTimeFraction = isEndOfFinalIteration
|
|
? 1.0
|
|
: fmod(aTiming.mIterationCount, 1.0f);
|
|
} else {
|
|
// We are in the active phase so the iteration duration can't be zero.
|
|
MOZ_ASSERT(aTiming.mIterationDuration != zeroDuration,
|
|
"In the active phase of a zero-duration animation?");
|
|
result.mTimeFraction =
|
|
aTiming.mIterationDuration == TimeDuration::Forever()
|
|
? 0.0
|
|
: iterationTime / aTiming.mIterationDuration;
|
|
}
|
|
|
|
bool thisIterationReverse = false;
|
|
switch (aTiming.mDirection) {
|
|
case NS_STYLE_ANIMATION_DIRECTION_NORMAL:
|
|
thisIterationReverse = false;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_REVERSE:
|
|
thisIterationReverse = true;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_ALTERNATE:
|
|
thisIterationReverse = (result.mCurrentIteration & 1) == 1;
|
|
break;
|
|
case NS_STYLE_ANIMATION_DIRECTION_ALTERNATE_REVERSE:
|
|
thisIterationReverse = (result.mCurrentIteration & 1) == 0;
|
|
break;
|
|
}
|
|
if (thisIterationReverse) {
|
|
result.mTimeFraction = 1.0 - result.mTimeFraction;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
TimeDuration
|
|
ElementAnimation::ActiveDuration(const AnimationTiming& aTiming)
|
|
{
|
|
if (aTiming.mIterationCount == mozilla::PositiveInfinity<float>()) {
|
|
// An animation that repeats forever has an infinite active duration
|
|
// unless its iteration duration is zero, in which case it has a zero
|
|
// active duration.
|
|
const TimeDuration zeroDuration;
|
|
return aTiming.mIterationDuration == zeroDuration
|
|
? zeroDuration
|
|
: TimeDuration::Forever();
|
|
}
|
|
return aTiming.mIterationDuration.MultDouble(aTiming.mIterationCount);
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanAnimatePropertyOnCompositor(
|
|
const dom::Element *aElement,
|
|
nsCSSProperty aProperty,
|
|
CanAnimateFlags aFlags)
|
|
{
|
|
bool shouldLog = nsLayoutUtils::IsAnimationLoggingEnabled();
|
|
if (!gfxPlatform::OffMainThreadCompositingEnabled()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Compositor disabled");
|
|
LogAsyncAnimationFailure(message);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(aElement);
|
|
if (IsGeometricProperty(aProperty)) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animation of geometric property '");
|
|
message.Append(nsCSSProps::GetStringValue(aProperty));
|
|
message.AppendLiteral("' is disabled");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (aProperty == eCSSProperty_transform) {
|
|
if (frame->Preserves3D() &&
|
|
frame->Preserves3DChildren()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async animation of 'preserve-3d' transforms is not supported. See bug 779598");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (frame->IsSVGTransformed()) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async 'transform' animations of frames with SVG transforms is not supported. See bug 779599");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
if (aFlags & CanAnimate_HasGeometricProperty) {
|
|
if (shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animation of 'transform' not possible due to presence of geometric properties");
|
|
LogAsyncAnimationFailure(message, aElement);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
bool enabled = nsLayoutUtils::AreAsyncAnimationsEnabled();
|
|
if (!enabled && shouldLog) {
|
|
nsCString message;
|
|
message.AppendLiteral("Performance warning: Async animations are disabled");
|
|
LogAsyncAnimationFailure(message);
|
|
}
|
|
bool propertyAllowed = (aProperty == eCSSProperty_transform) ||
|
|
(aProperty == eCSSProperty_opacity) ||
|
|
(aFlags & CanAnimate_AllowPartial);
|
|
return enabled && propertyAllowed;
|
|
}
|
|
|
|
/* static */ bool
|
|
ElementAnimationCollection::IsCompositorAnimationDisabledForFrame(
|
|
nsIFrame* aFrame)
|
|
{
|
|
void* prop = aFrame->Properties().Get(nsIFrame::RefusedAsyncAnimation());
|
|
return bool(reinterpret_cast<intptr_t>(prop));
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanPerformOnCompositorThread(
|
|
CanAnimateFlags aFlags) const
|
|
{
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(mElement);
|
|
if (!frame) {
|
|
return false;
|
|
}
|
|
|
|
if (mElementProperty != nsGkAtoms::transitionsProperty &&
|
|
mElementProperty != nsGkAtoms::animationsProperty) {
|
|
if (nsLayoutUtils::IsAnimationLoggingEnabled()) {
|
|
nsCString message;
|
|
message.AppendLiteral("Gecko bug: Async animation of pseudoelements"
|
|
" not supported. See bug 771367 (");
|
|
message.Append(nsAtomCString(mElementProperty));
|
|
message.Append(")");
|
|
LogAsyncAnimationFailure(message, mElement);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
bool isRunning = anim->IsRunning();
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx) {
|
|
if (IsGeometricProperty(anim->mProperties[propIdx].mProperty) &&
|
|
isRunning) {
|
|
aFlags = CanAnimateFlags(aFlags | CanAnimate_HasGeometricProperty);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool existsProperty = false;
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
if (!anim->IsRunning()) {
|
|
continue;
|
|
}
|
|
|
|
existsProperty = true;
|
|
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx) {
|
|
const AnimationProperty& prop = anim->mProperties[propIdx];
|
|
if (!CanAnimatePropertyOnCompositor(mElement,
|
|
prop.mProperty,
|
|
aFlags) ||
|
|
IsCompositorAnimationDisabledForFrame(frame)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// No properties to animate
|
|
if (!existsProperty) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::HasAnimationOfProperty(
|
|
nsCSSProperty aProperty) const
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
const ElementAnimation* anim = mAnimations[animIdx];
|
|
if (anim->HasAnimationOfProperty(aProperty) &&
|
|
!anim->IsFinishedTransition()) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* static */ void
|
|
ElementAnimationCollection::LogAsyncAnimationFailure(nsCString& aMessage,
|
|
const nsIContent* aContent)
|
|
{
|
|
if (aContent) {
|
|
aMessage.AppendLiteral(" [");
|
|
aMessage.Append(nsAtomCString(aContent->Tag()));
|
|
|
|
nsIAtom* id = aContent->GetID();
|
|
if (id) {
|
|
aMessage.AppendLiteral(" with id '");
|
|
aMessage.Append(nsAtomCString(aContent->GetID()));
|
|
aMessage.Append('\'');
|
|
}
|
|
aMessage.Append(']');
|
|
}
|
|
aMessage.Append('\n');
|
|
printf_stderr(aMessage.get());
|
|
}
|
|
|
|
/*static*/ void
|
|
ElementAnimationCollection::PropertyDtor(void *aObject, nsIAtom *aPropertyName,
|
|
void *aPropertyValue, void *aData)
|
|
{
|
|
ElementAnimationCollection* collection =
|
|
static_cast<ElementAnimationCollection*>(aPropertyValue);
|
|
#ifdef DEBUG
|
|
NS_ABORT_IF_FALSE(!collection->mCalledPropertyDtor, "can't call dtor twice");
|
|
collection->mCalledPropertyDtor = true;
|
|
#endif
|
|
delete collection;
|
|
}
|
|
|
|
void
|
|
ElementAnimationCollection::EnsureStyleRuleFor(TimeStamp aRefreshTime,
|
|
EnsureStyleRuleFlags aFlags)
|
|
{
|
|
if (!mNeedsRefreshes) {
|
|
mStyleRuleRefreshTime = aRefreshTime;
|
|
return;
|
|
}
|
|
|
|
// If we're performing animations on the compositor thread, then we can skip
|
|
// most of the work in this method. But even if we are throttled, then we
|
|
// have to do the work if an animation is ending in order to get correct end
|
|
// of animation behaviour (the styles of the animation disappear, or the fill
|
|
// mode behaviour). This loop checks for any finishing animations and forces
|
|
// the style recalculation if we find any.
|
|
if (aFlags == EnsureStyleRule_IsThrottled) {
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
ElementAnimation* anim = mAnimations[animIdx];
|
|
|
|
// Skip finished transitions or animations whose @keyframes rule
|
|
// is empty.
|
|
if (anim->IsFinishedTransition() || anim->mProperties.IsEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
// The GetLocalTime() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
ComputedTiming computedTiming = anim->GetComputedTiming(anim->mTiming);
|
|
|
|
// XXX We shouldn't really be using mLastNotification as a general
|
|
// indicator that the animation has finished, it should be reserved for
|
|
// events. If we use it differently in the future this use might need
|
|
// changing.
|
|
if (!anim->mIsRunningOnCompositor ||
|
|
(computedTiming.mPhase == ComputedTiming::AnimationPhase_After &&
|
|
anim->mLastNotification != ElementAnimation::LAST_NOTIFICATION_END))
|
|
{
|
|
aFlags = EnsureStyleRule_IsNotThrottled;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aFlags == EnsureStyleRule_IsThrottled) {
|
|
return;
|
|
}
|
|
|
|
// mStyleRule may be null and valid, if we have no style to apply.
|
|
if (mStyleRuleRefreshTime.IsNull() ||
|
|
mStyleRuleRefreshTime != aRefreshTime) {
|
|
mStyleRuleRefreshTime = aRefreshTime;
|
|
mStyleRule = nullptr;
|
|
// We'll set mNeedsRefreshes to true below in all cases where we need them.
|
|
mNeedsRefreshes = false;
|
|
|
|
// FIXME(spec): assume that properties in higher animations override
|
|
// those in lower ones.
|
|
// Therefore, we iterate from last animation to first.
|
|
nsCSSPropertySet properties;
|
|
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
ElementAnimation* anim = mAnimations[animIdx];
|
|
|
|
if (anim->IsFinishedTransition()) {
|
|
continue;
|
|
}
|
|
|
|
// The GetLocalTime() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
ComputedTiming computedTiming = anim->GetComputedTiming(anim->mTiming);
|
|
|
|
if ((computedTiming.mPhase == ComputedTiming::AnimationPhase_Before ||
|
|
computedTiming.mPhase == ComputedTiming::AnimationPhase_Active) &&
|
|
!anim->IsPaused()) {
|
|
mNeedsRefreshes = true;
|
|
}
|
|
|
|
// If the time fraction is null, we don't have fill data for the current
|
|
// time so we shouldn't animate.
|
|
if (computedTiming.mTimeFraction == ComputedTiming::kNullTimeFraction) {
|
|
continue;
|
|
}
|
|
|
|
NS_ABORT_IF_FALSE(0.0 <= computedTiming.mTimeFraction &&
|
|
computedTiming.mTimeFraction <= 1.0,
|
|
"timing fraction should be in [0-1]");
|
|
|
|
for (uint32_t propIdx = 0, propEnd = anim->mProperties.Length();
|
|
propIdx != propEnd; ++propIdx)
|
|
{
|
|
const AnimationProperty &prop = anim->mProperties[propIdx];
|
|
|
|
NS_ABORT_IF_FALSE(prop.mSegments[0].mFromKey == 0.0,
|
|
"incorrect first from key");
|
|
NS_ABORT_IF_FALSE(prop.mSegments[prop.mSegments.Length() - 1].mToKey
|
|
== 1.0,
|
|
"incorrect last to key");
|
|
|
|
if (properties.HasProperty(prop.mProperty)) {
|
|
// A later animation already set this property.
|
|
continue;
|
|
}
|
|
properties.AddProperty(prop.mProperty);
|
|
|
|
NS_ABORT_IF_FALSE(prop.mSegments.Length() > 0,
|
|
"property should not be in animations if it "
|
|
"has no segments");
|
|
|
|
// FIXME: Maybe cache the current segment?
|
|
const AnimationPropertySegment *segment = prop.mSegments.Elements(),
|
|
*segmentEnd = segment + prop.mSegments.Length();
|
|
while (segment->mToKey < computedTiming.mTimeFraction) {
|
|
NS_ABORT_IF_FALSE(segment->mFromKey < segment->mToKey,
|
|
"incorrect keys");
|
|
++segment;
|
|
if (segment == segmentEnd) {
|
|
NS_ABORT_IF_FALSE(false, "incorrect time fraction");
|
|
break; // in order to continue in outer loop (just below)
|
|
}
|
|
NS_ABORT_IF_FALSE(segment->mFromKey == (segment-1)->mToKey,
|
|
"incorrect keys");
|
|
}
|
|
if (segment == segmentEnd) {
|
|
continue;
|
|
}
|
|
NS_ABORT_IF_FALSE(segment->mFromKey < segment->mToKey,
|
|
"incorrect keys");
|
|
NS_ABORT_IF_FALSE(segment >= prop.mSegments.Elements() &&
|
|
size_t(segment - prop.mSegments.Elements()) <
|
|
prop.mSegments.Length(),
|
|
"out of array bounds");
|
|
|
|
if (!mStyleRule) {
|
|
// Allocate the style rule now that we know we have animation data.
|
|
mStyleRule = new css::AnimValuesStyleRule();
|
|
}
|
|
|
|
double positionInSegment =
|
|
(computedTiming.mTimeFraction - segment->mFromKey) /
|
|
(segment->mToKey - segment->mFromKey);
|
|
double valuePosition =
|
|
segment->mTimingFunction.GetValue(positionInSegment);
|
|
|
|
StyleAnimationValue *val =
|
|
mStyleRule->AddEmptyValue(prop.mProperty);
|
|
|
|
#ifdef DEBUG
|
|
bool result =
|
|
#endif
|
|
StyleAnimationValue::Interpolate(prop.mProperty,
|
|
segment->mFromValue,
|
|
segment->mToValue,
|
|
valuePosition, *val);
|
|
NS_ABORT_IF_FALSE(result, "interpolate must succeed now");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
ElementAnimationCollection::CanThrottleTransformChanges(TimeStamp aTime)
|
|
{
|
|
if (!nsLayoutUtils::AreAsyncAnimationsEnabled()) {
|
|
return false;
|
|
}
|
|
|
|
// If we know that the animation cannot cause overflow,
|
|
// we can just disable flushes for this animation.
|
|
|
|
// If we don't show scrollbars, we don't care about overflow.
|
|
if (LookAndFeel::GetInt(LookAndFeel::eIntID_ShowHideScrollbars) == 0) {
|
|
return true;
|
|
}
|
|
|
|
// If this animation can cause overflow, we can throttle some of the ticks.
|
|
if ((aTime - mStyleRuleRefreshTime) < TimeDuration::FromMilliseconds(200)) {
|
|
return true;
|
|
}
|
|
|
|
// If the nearest scrollable ancestor has overflow:hidden,
|
|
// we don't care about overflow.
|
|
nsIScrollableFrame* scrollable = nsLayoutUtils::GetNearestScrollableFrame(
|
|
nsLayoutUtils::GetStyleFrame(mElement));
|
|
if (!scrollable) {
|
|
return true;
|
|
}
|
|
|
|
ScrollbarStyles ss = scrollable->GetScrollbarStyles();
|
|
if (ss.mVertical == NS_STYLE_OVERFLOW_HIDDEN &&
|
|
ss.mHorizontal == NS_STYLE_OVERFLOW_HIDDEN &&
|
|
scrollable->GetLogicalScrollPosition() == nsPoint(0, 0)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::CanThrottleAnimation(TimeStamp aTime)
|
|
{
|
|
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(mElement);
|
|
if (!frame) {
|
|
return false;
|
|
}
|
|
|
|
bool hasTransform = HasAnimationOfProperty(eCSSProperty_transform);
|
|
bool hasOpacity = HasAnimationOfProperty(eCSSProperty_opacity);
|
|
if (hasOpacity) {
|
|
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(
|
|
frame, nsDisplayItem::TYPE_OPACITY);
|
|
if (!layer || mAnimationGeneration > layer->GetAnimationGeneration()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!hasTransform) {
|
|
return true;
|
|
}
|
|
|
|
Layer* layer = FrameLayerBuilder::GetDedicatedLayer(
|
|
frame, nsDisplayItem::TYPE_TRANSFORM);
|
|
if (!layer || mAnimationGeneration > layer->GetAnimationGeneration()) {
|
|
return false;
|
|
}
|
|
|
|
return CanThrottleTransformChanges(aTime);
|
|
}
|
|
|
|
void
|
|
ElementAnimationCollection::UpdateAnimationGeneration(
|
|
nsPresContext* aPresContext)
|
|
{
|
|
mAnimationGeneration =
|
|
aPresContext->RestyleManager()->GetAnimationGeneration();
|
|
}
|
|
|
|
bool
|
|
ElementAnimationCollection::HasCurrentAnimations()
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
if (mAnimations[animIdx]->IsCurrent()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
}
|