/* virtual */ void
nsAnimationManager::WillRefresh(mozilla::TimeStamp aTime)
{
NS_ABORT_IF_FALSE(mPresContext,
"refresh driver should not notify additional observers "
"after pres context has been destroyed");
if (!mPresContext->GetPresShell()) {
// Someone might be keeping mPresContext alive past the point
// where it has been torn down; don't bother doing anything in
// this case. But do get rid of all our transitions so we stop
// triggering refreshes.
RemoveAllElementData();
return;
}
// FIXME: check that there's at least one style rule that's not
// in its "done" state, and if there isn't, remove ourselves from
// the refresh driver (but leave the animations!).
for (PRCList *l = PR_LIST_HEAD(&mElementData); l != &mElementData;
l = PR_NEXT_LINK(l)) {
ElementAnimations *ea = static_cast<ElementAnimations*>(l);
nsRefPtr<css::AnimValuesStyleRule> oldStyleRule = ea->mStyleRule;
bool shouldInterpolate = !ea->CanPerformOnCompositorThread();
ea->EnsureStyleRuleFor(mPresContext->RefreshDriver()->MostRecentRefresh(),
mPendingEvents, shouldInterpolate);
if (oldStyleRule != ea->mStyleRule && shouldInterpolate) {
ea->PostRestyleForAnimation(mPresContext);
}
}
DispatchEvents(); // may destroy us
}
void
nsAnimationManager::FlushAnimations(FlushFlags aFlags)
{
// FIXME: check that there's at least one style rule that's not
// in its "done" state, and if there isn't, remove ourselves from
// the refresh driver (but leave the animations!).
TimeStamp now = mPresContext->RefreshDriver()->MostRecentRefresh();
bool didThrottle = false;
for (PRCList *l = PR_LIST_HEAD(&mElementData); l != &mElementData;
l = PR_NEXT_LINK(l)) {
ElementAnimations *ea = static_cast<ElementAnimations*>(l);
bool canThrottleTick = aFlags == Can_Throttle &&
ea->CanPerformOnCompositorThread(
CommonElementAnimationData::CanAnimateFlags(0)) &&
ea->CanThrottleAnimation(now);
nsRefPtr<css::AnimValuesStyleRule> oldStyleRule = ea->mStyleRule;
ea->EnsureStyleRuleFor(now, mPendingEvents, canThrottleTick);
if (oldStyleRule != ea->mStyleRule) {
ea->PostRestyleForAnimation(mPresContext);
} else {
didThrottle = true;
}
}
if (didThrottle) {
mPresContext->Document()->SetNeedStyleFlush();
}
DispatchEvents(); // may destroy us
}
nsIStyleRule*
nsAnimationManager::GetAnimationRule(mozilla::dom::Element* aElement,
nsCSSPseudoElements::Type aPseudoType)
{
NS_ABORT_IF_FALSE(
aPseudoType == nsCSSPseudoElements::ePseudo_NotPseudoElement ||
aPseudoType == nsCSSPseudoElements::ePseudo_before ||
aPseudoType == nsCSSPseudoElements::ePseudo_after,
"forbidden pseudo type");
ElementAnimations *ea =
GetElementAnimations(aElement, aPseudoType, false);
if (!ea) {
return nsnull;
}
NS_WARN_IF_FALSE(ea->mStyleRuleRefreshTime ==
mPresContext->RefreshDriver()->MostRecentRefresh(),
"should already have refreshed style rule");
if (mPresContext->IsProcessingRestyles() &&
!mPresContext->IsProcessingAnimationStyleChange()) {
// During the non-animation part of processing restyles, we don't
// add the animation rule.
if (ea->mStyleRule) {
ea->PostRestyleForAnimation(mPresContext);
}
return nsnull;
}
return ea->mStyleRule;
}
