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Allow empty keyframe and keyframes with non-animatable properties.

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We need to create CSS animations that have empty keyframe or keyframes
which have only invalid properties or non-animatable properties to fire
animation events for such animations.
This commit is contained in:
Hiroyuki Ikezoe 2017-01-23 13:14:24 +09:00
parent 8421ae6077
commit a80725c91b
4 changed files with 67 additions and 31 deletions
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14
components/style/stylist.rs
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@ -182,6 +182,7 @@ impl Stylist {
self.precomputed_pseudo_element_decls = Default::default();
self.rules_source_order = 0;
self.state_deps.clear();
self.animations.clear();
self.sibling_affecting_selectors.clear();
self.non_common_style_affecting_attributes_selectors.clear();
@ -274,16 +275,9 @@ impl Stylist {
CssRule::Keyframes(ref keyframes_rule) => {
let keyframes_rule = keyframes_rule.read();
debug!("Found valid keyframes rule: {:?}", *keyframes_rule);
if let Some(animation) = KeyframesAnimation::from_keyframes(&keyframes_rule.keyframes) {
debug!("Found valid keyframe animation: {:?}", animation);
self.animations.insert(keyframes_rule.name.clone(),
animation);
} else {
// If there's a valid keyframes rule, even if it doesn't
// produce an animation, should shadow other animations
// with the same name.
self.animations.remove(&keyframes_rule.name);
}
let animation = KeyframesAnimation::from_keyframes(&keyframes_rule.keyframes);
debug!("Found valid keyframe animation: {:?}", animation);
self.animations.insert(keyframes_rule.name.clone(), animation);
}
// We don't care about any other rule.
_ => {}