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Add support for canceling CSS transitions

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This change adds support for canceling CSS transitions when a property
is no longer transitionable or when an element becomes styled with
display:none. Support for canceling and replacing CSS transitions when
the end value changes is still pending. This change also takes advantage
of updating the constellation message to fix a bug where transition
events could be sent for closed pipelines.

Fixes #15079.
This commit is contained in:
Martin Robinson 2020-04-21 16:32:53 +02:00
parent 99cd30eaad
commit 453b252a65
15 changed files with 351 additions and 153 deletions
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4
components/style/context.rs
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@ -194,6 +194,10 @@ pub struct SharedStyleContext<'a> {
#[cfg(feature = "servo")]
pub expired_animations: Arc<RwLock<FxHashMap<OpaqueNode, Vec<Animation>>>>,
/// The list of animations that have expired since the last style recalculation.
#[cfg(feature = "servo")]
pub cancelled_animations: Arc<RwLock<FxHashMap<OpaqueNode, Vec<Animation>>>>,
/// Paint worklets
#[cfg(feature = "servo")]
pub registered_speculative_painters: &'a dyn RegisteredSpeculativePainters,