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Add animation and transition support for pseudo-elements

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This change extends the DocumentAnimationSet to hold animations for
pseudo-elements. Since pseudo-elements in Servo are not in the DOM like
in Gecko, they need to be handled a bit carefully in stylo.  When a
pseudo-element has an animation, recascade the style. Finally, this
change passes the pseudo-element string properly to animation events.

Fixes: #10316
This commit is contained in:
Martin Robinson 2020-06-15 11:51:23 +02:00
parent ba5568a0a6
commit f3e373bc62
19 changed files with 359 additions and 138 deletions
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10
components/layout_2020/flow/root.rs
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@ -38,6 +38,7 @@ use servo_arc::Arc;
use style::animation::AnimationSetKey;
use style::dom::OpaqueNode;
use style::properties::ComputedValues;
use style::selector_parser::PseudoElement;
use style::values::computed::Length;
use style_traits::CSSPixel;
@ -449,9 +450,12 @@ impl FragmentTree {
pub fn remove_nodes_in_fragment_tree_from_set(&self, set: &mut FxHashSet<AnimationSetKey>) {
self.find(|fragment, _| {
if let Some(tag) = fragment.tag().as_ref() {
set.remove(&AnimationSetKey(tag.node()));
}
let (node, pseudo) = match fragment.tag()? {
Tag::Node(node) => (node, None),
Tag::BeforePseudo(node) => (node, Some(PseudoElement::Before)),
Tag::AfterPseudo(node) => (node, Some(PseudoElement::After)),
};
set.remove(&AnimationSetKey::new(node, pseudo));
None::<()>
});
}