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Implement animation-fill-mode

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Fixes #26460.
This commit is contained in:
Martin Robinson 2020-05-11 19:07:24 +02:00
parent 0a00ea3db3
commit 183f15d5aa
16 changed files with 241 additions and 96 deletions
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8
components/style/matching.rs
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@ -7,6 +7,7 @@
#![allow(unsafe_code)]
#![deny(missing_docs)]
use crate::animation::AnimationState;
use crate::computed_value_flags::ComputedValueFlags;
use crate::context::{ElementCascadeInputs, QuirksMode, SelectorFlagsMap};
use crate::context::{SharedStyleContext, StyleContext};
@ -458,9 +459,14 @@ trait PrivateMatchMethods: TElement {
&context.thread_local.font_metrics_provider,
);
// We clear away any finished transitions, but retain animations, because they
// might still be used for proper calculation of `animation-fill-mode`.
animation_state
.transitions
.retain(|transition| transition.state != AnimationState::Finished);
// If the ElementAnimationSet is empty, and don't store it in order to
// save memory and to avoid extra processing later.
animation_state.clear_finished_animations();
if !animation_state.is_empty() {
animation_states.insert(this_opaque, animation_state);
}