nsStyleContext*
nsTransitionManager::UpdateThrottledStyle(dom::Element* aElement,
nsStyleContext* aParentStyle)
{
NS_ASSERTION(GetElementTransitions(aElement,
nsCSSPseudoElements::ePseudo_NotPseudoElement,
false), "element not transitioning");
nsIFrame* primaryFrame = aElement->GetPrimaryFrame();
if (!primaryFrame) {
return nullptr;
}
nsStyleContext* oldStyle = primaryFrame->GetStyleContext();
nsRuleNode* ruleNode = oldStyle->GetRuleNode();
nsTArray<nsStyleSet::RuleAndLevel> rules;
do {
if (ruleNode->IsRoot()) {
break;
}
nsStyleSet::RuleAndLevel* curRule = rules.AppendElement();
curRule->mLevel = ruleNode->GetLevel();
if (curRule->mLevel == nsStyleSet::eAnimationSheet) {
ElementAnimations* ea =
mPresContext->AnimationManager()->GetElementAnimations(aElement,
oldStyle->GetPseudoType(),
false);
NS_ASSERTION(ea, "Rule has level eAnimationSheet without animation on manager");
mPresContext->AnimationManager()->EnsureStyleRuleFor(ea);
curRule->mRule = ea->mStyleRule;
ForceLayerRerendering(primaryFrame, ea);
} else if (curRule->mLevel == nsStyleSet::eTransitionSheet) {
ElementTransitions *et =
GetElementTransitions(aElement, oldStyle->GetPseudoType(), false);
NS_ASSERTION(et, "Rule has level eTransitionSheet without transition on manager");
et->EnsureStyleRuleFor(mPresContext->RefreshDriver()->MostRecentRefresh());
curRule->mRule = et->mStyleRule;
ForceLayerRerendering(primaryFrame, et);
} else {
curRule->mRule = ruleNode->GetRule();
}
} while ((ruleNode = ruleNode->GetParent()));
nsRefPtr<nsStyleContext> newStyle = mPresContext->PresShell()->StyleSet()->
ResolveStyleForRules(aParentStyle, oldStyle, rules);
primaryFrame->SetStyleContextWithoutNotification(newStyle);
ReparentBeforeAndAfter(aElement, primaryFrame, newStyle, mPresContext->PresShell()->StyleSet());
return newStyle;
}
nsStyleContext*
CommonAnimationManager::UpdateThrottledStyle(dom::Element* aElement,
nsStyleContext* aParentStyle,
nsStyleChangeList& aChangeList)
{
NS_ASSERTION(mPresContext->TransitionManager()->GetElementTransitions(
aElement,
nsCSSPseudoElements::ePseudo_NotPseudoElement,
false) ||
mPresContext->AnimationManager()->GetElementAnimations(
aElement,
nsCSSPseudoElements::ePseudo_NotPseudoElement,
false), "element not animated");
nsIFrame* primaryFrame = nsLayoutUtils::GetStyleFrame(aElement);
if (!primaryFrame) {
return nullptr;
}
nsStyleContext* oldStyle = primaryFrame->StyleContext();
nsRuleNode* ruleNode = oldStyle->RuleNode();
nsTArray<nsStyleSet::RuleAndLevel> rules;
do {
if (ruleNode->IsRoot()) {
break;
}
nsStyleSet::RuleAndLevel curRule;
curRule.mLevel = ruleNode->GetLevel();
if (curRule.mLevel == nsStyleSet::eAnimationSheet) {
ElementAnimations* ea =
mPresContext->AnimationManager()->GetElementAnimations(
aElement,
oldStyle->GetPseudoType(),
false);
NS_ASSERTION(ea,
"Rule has level eAnimationSheet without animation on manager");
mPresContext->AnimationManager()->EnsureStyleRuleFor(ea);
curRule.mRule = ea->mStyleRule;
} else if (curRule.mLevel == nsStyleSet::eTransitionSheet) {
ElementTransitions *et =
mPresContext->TransitionManager()->GetElementTransitions(
aElement,
oldStyle->GetPseudoType(),
false);
NS_ASSERTION(et,
"Rule has level eTransitionSheet without transition on manager");
et->EnsureStyleRuleFor(mPresContext->RefreshDriver()->MostRecentRefresh());
curRule.mRule = et->mStyleRule;
} else {
curRule.mRule = ruleNode->GetRule();
}
if (curRule.mRule) {
rules.AppendElement(curRule);
}
} while ((ruleNode = ruleNode->GetParent()));
nsRefPtr<nsStyleContext> newStyle = mPresContext->PresShell()->StyleSet()->
ResolveStyleForRules(aParentStyle, oldStyle, rules);
// We absolutely must call CalcStyleDifference in order to ensure the
// new context has all the structs cached that the old context had.
// We also need it for processing of the changes.
nsChangeHint styleChange =
oldStyle->CalcStyleDifference(newStyle, nsChangeHint(0));
aChangeList.AppendChange(primaryFrame, primaryFrame->GetContent(),
styleChange);
primaryFrame->SetStyleContext(newStyle);
ReparentBeforeAndAfter(aElement, primaryFrame, newStyle,
mPresContext->PresShell()->StyleSet());
return newStyle;
}
nsStyleContext*
nsTransitionManager::UpdateThrottledStyle(dom::Element* aElement,
nsStyleContext* aParentStyle,
nsStyleChangeList& aChangeList)
{
NS_ASSERTION(GetElementTransitions(aElement,
nsCSSPseudoElements::ePseudo_NotPseudoElement,
false), "element not transitioning");
nsIFrame* primaryFrame = aElement->GetPrimaryFrame();
if (!primaryFrame) {
return nullptr;
}
nsStyleContext* oldStyle = primaryFrame->GetStyleContext();
nsRuleNode* ruleNode = oldStyle->GetRuleNode();
nsTArray<nsStyleSet::RuleAndLevel> rules;
do {
if (ruleNode->IsRoot()) {
break;
}
nsStyleSet::RuleAndLevel curRule;
curRule.mLevel = ruleNode->GetLevel();
if (curRule.mLevel == nsStyleSet::eAnimationSheet) {
ElementAnimations* ea =
mPresContext->AnimationManager()->GetElementAnimations(aElement,
oldStyle->GetPseudoType(),
false);
NS_ASSERTION(ea, "Rule has level eAnimationSheet without animation on manager");
mPresContext->AnimationManager()->EnsureStyleRuleFor(ea);
curRule.mRule = ea->mStyleRule;
// FIXME: maybe not needed anymore:
ForceLayerRerendering(primaryFrame, ea);
} else if (curRule.mLevel == nsStyleSet::eTransitionSheet) {
ElementTransitions *et =
GetElementTransitions(aElement, oldStyle->GetPseudoType(), false);
NS_ASSERTION(et, "Rule has level eTransitionSheet without transition on manager");
et->EnsureStyleRuleFor(mPresContext->RefreshDriver()->MostRecentRefresh());
curRule.mRule = et->mStyleRule;
// FIXME: maybe not needed anymore:
ForceLayerRerendering(primaryFrame, et);
} else {
curRule.mRule = ruleNode->GetRule();
}
if (curRule.mRule) {
rules.AppendElement(curRule);
}
} while ((ruleNode = ruleNode->GetParent()));
nsRefPtr<nsStyleContext> newStyle = mPresContext->PresShell()->StyleSet()->
ResolveStyleForRules(aParentStyle, oldStyle, rules);
// We absolutely must call CalcStyleDifference in order to ensure the
// new context has all the structs cached that the old context had.
// We also need it for processing of the changes.
nsChangeHint styleChange =
oldStyle->CalcStyleDifference(newStyle, nsChangeHint(0));
// This isn't particularly dangerous, but I want to catch if it happens:
NS_ABORT_IF_FALSE(NS_IsHintSubset(styleChange,
NS_CombineHint(nsChangeHint_UpdateOpacityLayer,
NS_CombineHint(nsChangeHint_UpdateTransformLayer,
nsChangeHint_UpdateOverflow))),
"unexpected change hint");
aChangeList.AppendChange(primaryFrame, primaryFrame->GetContent(),
styleChange);
primaryFrame->SetStyleContextWithoutNotification(newStyle);
ReparentBeforeAndAfter(aElement, primaryFrame, newStyle, mPresContext->PresShell()->StyleSet());
return newStyle;
}