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https://gitlab.winehq.org/wine/wine-gecko.git
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ae594f7975
Both ElementAnimations and ElementTransitions have an EnsureStyleRuleFor method. The ElementAnimations version is a more general of the ElementTransitions one with the exception that the ElementTransitions version checks for finished transitions. This patch moves the code from ElementAnimations to CommonElementAnimationData with one minor change: adding the checks for finished transitions. The ElementTransitions version is removed. Since the ElementAnimations version contains a second parameter, aIsThrottled, callers of ElementTransitions must include this extra parameter. In a subsequent patch we add an enum for this parameter to make call sites easier to read. The ElementAnimations version also sets the mNeedsRefreshes member so at the same time we move mNeedsRefreshes to CommonElementAnimationData. Furthermore, since the ElementAnimations version which we have adopted returns early if mNeedsRefreshes is false, this patch ensures that when we call EnsureStyleRuleFor from ElementTransitions::WalkTransitionRule, we set mNeedsRefreshes to true first. Another difference to account for is that the ElementTransitions version of EnsureStyleRuleFor *always* sets mStyleRule (even if it doesn't add anything to it) where as the ElementAnimations version only creates the rule when necessary so we need to add a check to ElementTransitions::WalkTransitionRule that mStyleRule is actually set before using it.
870 lines
28 KiB
C++
870 lines
28 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 "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 "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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namespace css {
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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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CommonAnimationManager::CommonAnimationManager(nsPresContext *aPresContext)
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: mPresContext(aPresContext)
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{
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PR_INIT_CLIST(&mElementData);
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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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RemoveAllElementData();
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mPresContext = nullptr;
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}
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void
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CommonAnimationManager::RemoveAllElementData()
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{
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while (!PR_CLIST_IS_EMPTY(&mElementData)) {
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CommonElementAnimationData *head =
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static_cast<CommonElementAnimationData*>(PR_LIST_HEAD(&mElementData));
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head->Destroy();
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}
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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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// - mElementData
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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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nsStyleAnimation::Value& aComputedValue)
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{
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bool result =
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nsStyleAnimation::ExtractComputedValue(aProperty, 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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nsStyleAnimation::eUnit_Enumerated,
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"unexpected unit");
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aComputedValue.SetIntValue(aComputedValue.GetIntValue(),
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nsStyleAnimation::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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ElementAnimations* ea =
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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(ea,
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"Rule has level eAnimationSheet without animation on manager");
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mPresContext->AnimationManager()->EnsureStyleRuleFor(ea);
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curRule.mRule = ea->mStyleRule;
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} else if (curRule.mLevel == nsStyleSet::eTransitionSheet) {
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ElementTransitions *et =
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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(et,
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"Rule has level eTransitionSheet without transition on manager");
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et->EnsureStyleRuleFor(
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mPresContext->RefreshDriver()->MostRecentRefresh(), false);
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curRule.mRule = et->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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nsStyleAnimation::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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nsStyleAnimation::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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bool
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ElementAnimation::IsRunningAt(TimeStamp aTime) 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 =
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GetComputedTimingAt(GetLocalTimeAt(aTime), 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::IsCurrentAt(TimeStamp aTime) const
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{
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if (!IsFinishedTransition()) {
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ComputedTiming computedTiming =
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GetComputedTimingAt(GetLocalTimeAt(aTime), mTiming);
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if (computedTiming.mPhase == ComputedTiming::AnimationPhase_Before ||
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computedTiming.mPhase == ComputedTiming::AnimationPhase_Active) {
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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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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(TimeDuration aLocalTime,
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const AnimationTiming& aTiming)
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{
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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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TimeDuration activeDuration = ActiveDuration(aTiming);
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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
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// so we set up a flag for that case.
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bool isEndOfFinalIteration = false;
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// Get the normalized time within the active interval.
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TimeDuration activeTime;
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if (aLocalTime >= aTiming.mDelay + activeDuration) {
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result.mPhase = ComputedTiming::AnimationPhase_After;
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if (!aTiming.FillsForwards()) {
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// The animation isn't active or filling at this time.
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result.mTimeFraction = ComputedTiming::kNullTimeFraction;
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return result;
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}
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activeTime = activeDuration;
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// Note that infinity == floor(infinity) so this will also be true when we
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// have finished an infinitely repeating animation of zero duration.
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isEndOfFinalIteration =
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aTiming.mIterationCount != 0.0 &&
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aTiming.mIterationCount == floor(aTiming.mIterationCount);
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} else if (aLocalTime < aTiming.mDelay) {
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result.mPhase = ComputedTiming::AnimationPhase_Before;
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if (!aTiming.FillsBackwards()) {
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// The animation isn't active or filling at this time.
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result.mTimeFraction = ComputedTiming::kNullTimeFraction;
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return result;
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}
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// activeTime is zero
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} else {
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MOZ_ASSERT(activeDuration != TimeDuration(),
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"How can we be in the middle of a zero-duration interval?");
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result.mPhase = ComputedTiming::AnimationPhase_Active;
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activeTime = aLocalTime - aTiming.mDelay;
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}
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// Get the position within the current iteration.
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TimeDuration iterationTime;
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if (aTiming.mIterationDuration != TimeDuration()) {
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iterationTime = isEndOfFinalIteration
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? aTiming.mIterationDuration
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: activeTime % aTiming.mIterationDuration;
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} /* else, iterationTime is zero */
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// Determine the 0-based index of the current iteration.
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if (isEndOfFinalIteration) {
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result.mCurrentIteration =
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aTiming.mIterationCount == NS_IEEEPositiveInfinity()
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? UINT64_MAX // FIXME: When we return this via the API we'll need
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// to make sure it ends up being infinity.
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: static_cast<uint64_t>(aTiming.mIterationCount) - 1;
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} else if (activeTime == TimeDuration(0)) {
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// If the active time is zero we're either in the first iteration
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// (including filling backwards) or we have finished an animation with an
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// iteration duration of zero that is filling forwards (but we're not at
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// the exact end of an iteration since we deal with that above).
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result.mCurrentIteration =
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result.mPhase == ComputedTiming::AnimationPhase_After
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? static_cast<uint64_t>(aTiming.mIterationCount) // floor
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: 0;
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} else {
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result.mCurrentIteration =
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static_cast<uint64_t>(activeTime / aTiming.mIterationDuration); // floor
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}
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// Normalize the iteration time into a fraction of the iteration duration.
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if (result.mPhase == ComputedTiming::AnimationPhase_Before) {
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result.mTimeFraction = 0.0;
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} else if (result.mPhase == ComputedTiming::AnimationPhase_After) {
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result.mTimeFraction = isEndOfFinalIteration
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? 1.0
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: fmod(aTiming.mIterationCount, 1.0f);
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} else {
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// We are in the active phase so the iteration duration can't be zero.
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MOZ_ASSERT(aTiming.mIterationDuration != TimeDuration(0),
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"In the active phase of a zero-duration animation?");
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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;
|
|
}
|
|
|
|
namespace css {
|
|
|
|
bool
|
|
CommonElementAnimationData::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
|
|
CommonElementAnimationData::IsCompositorAnimationDisabledForFrame(nsIFrame* aFrame)
|
|
{
|
|
void* prop = aFrame->Properties().Get(nsIFrame::RefusedAsyncAnimation());
|
|
return bool(reinterpret_cast<intptr_t>(prop));
|
|
}
|
|
|
|
/* static */ void
|
|
CommonElementAnimationData::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());
|
|
}
|
|
|
|
void
|
|
CommonElementAnimationData::EnsureStyleRuleFor(TimeStamp aRefreshTime,
|
|
bool aIsThrottled)
|
|
{
|
|
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 (aIsThrottled) {
|
|
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 GetLocalTimeAt() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
TimeDuration localTime = anim->GetLocalTimeAt(aRefreshTime);
|
|
ComputedTiming computedTiming =
|
|
ElementAnimation::GetComputedTimingAt(localTime, 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))
|
|
{
|
|
aIsThrottled = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aIsThrottled) {
|
|
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 GetLocalTimeAt() call here handles pausing. But:
|
|
// FIXME: avoid recalculating every time when paused.
|
|
TimeDuration localTime = anim->GetLocalTimeAt(aRefreshTime);
|
|
ComputedTiming computedTiming =
|
|
ElementAnimation::GetComputedTimingAt(localTime, 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);
|
|
|
|
nsStyleAnimation::Value *val =
|
|
mStyleRule->AddEmptyValue(prop.mProperty);
|
|
|
|
#ifdef DEBUG
|
|
bool result =
|
|
#endif
|
|
nsStyleAnimation::Interpolate(prop.mProperty,
|
|
segment->mFromValue, segment->mToValue,
|
|
valuePosition, *val);
|
|
NS_ABORT_IF_FALSE(result, "interpolate must succeed now");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
CommonElementAnimationData::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
|
|
CommonElementAnimationData::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
|
|
CommonElementAnimationData::UpdateAnimationGeneration(nsPresContext* aPresContext)
|
|
{
|
|
mAnimationGeneration =
|
|
aPresContext->RestyleManager()->GetAnimationGeneration();
|
|
}
|
|
|
|
bool
|
|
CommonElementAnimationData::HasCurrentAnimationsAt(TimeStamp aTime)
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
if (mAnimations[animIdx]->IsCurrentAt(aTime)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
}
|
|
}
|