nsStyleContext*
ResolvedStyleCache::Get(nsPresContext *aPresContext,
nsStyleContext *aParentStyleContext,
Declaration* aKeyframeDeclaration)
{
// FIXME (spec): The css3-animations spec isn't very clear about how
// properties are resolved when they have values that depend on other
// properties (e.g., values in 'em'). I presume that they're resolved
// relative to the other styles of the element. The question is
// whether they are resolved relative to other animations: I assume
// that they're not, since that would prevent us from caching a lot of
// data that we'd really like to cache (in particular, the
// StyleAnimationValue values in AnimationPropertySegment).
nsStyleContext *result = mCache.GetWeak(aKeyframeDeclaration);
if (!result) {
aKeyframeDeclaration->SetImmutable();
// The spec says that !important declarations should just be ignored
MOZ_ASSERT(!aKeyframeDeclaration->HasImportantData(),
"Keyframe rule has !important data");
nsCOMArray<nsIStyleRule> rules;
rules.AppendObject(aKeyframeDeclaration);
RefPtr<nsStyleContext> resultStrong = aPresContext->StyleSet()->
ResolveStyleByAddingRules(aParentStyleContext, rules);
mCache.Put(aKeyframeDeclaration, resultStrong);
result = resultStrong;
}
return result;
}
nsStyleContext*
ResolvedStyleCache::Get(nsPresContext *aPresContext,
nsStyleContext *aParentStyleContext,
nsCSSKeyframeRule *aKeyframe)
{
// FIXME (spec): The css3-animations spec isn't very clear about how
// properties are resolved when they have values that depend on other
// properties (e.g., values in 'em'). I presume that they're resolved
// relative to the other styles of the element. The question is
// whether they are resolved relative to other animations: I assume
// that they're not, since that would prevent us from caching a lot of
// data that we'd really like to cache (in particular, the
// nsStyleAnimation::Value values in AnimationPropertySegment).
nsStyleContext *result = mCache.GetWeak(aKeyframe);
if (!result) {
nsCOMArray<nsIStyleRule> rules;
rules.AppendObject(aKeyframe);
nsRefPtr<nsStyleContext> resultStrong = aPresContext->StyleSet()->
ResolveStyleByAddingRules(aParentStyleContext, rules);
mCache.Put(aKeyframe, resultStrong);
result = resultStrong;
}
return result;
}
