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Use a restyle for animation ticks

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This change corrects synchronization issues with animations, by
reworking the animation processing model to do a quick restyle and
incremental layout when ticking animations.

While this change adds overhead to animation ticks, the idea is that
this will be the fallback when synchronous behavior is required to
fulfill specification requirements. In the optimistic case, many
animations could be updated and applied off-the-main-thread and then
resynchronized when style information is queried by script.

Fixes #13865.
This commit is contained in:
Martin Robinson 2020-04-30 15:38:56 +02:00
parent 5e44327325
commit b585ce5b1f
39 changed files with 1285 additions and 1662 deletions
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11
components/net_traits/image_cache.rs
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@ -14,15 +14,6 @@ use std::sync::Arc;
// Aux structs and enums.
// ======================================================================
/// Whether a consumer is in a position to request images or not. This can occur
/// when animations are being processed by the layout thread while the script
/// thread is executing in parallel.
#[derive(Clone, Copy, Debug, Deserialize, PartialEq, Serialize)]
pub enum CanRequestImages {
No,
Yes,
}
/// Indicating either entire image or just metadata availability
#[derive(Clone, Debug, Deserialize, MallocSizeOf, Serialize)]
pub enum ImageOrMetadataAvailable {
@ -119,7 +110,6 @@ pub trait ImageCache: Sync + Send {
origin: ImmutableOrigin,
cors_setting: Option<CorsSettings>,
use_placeholder: UsePlaceholder,
can_request: CanRequestImages,
) -> ImageCacheResult;
/// Add a listener for the provided pending image id, eventually called by
@ -135,7 +125,6 @@ pub trait ImageCache: Sync + Send {
cors_setting: Option<CorsSettings>,
sender: IpcSender<PendingImageResponse>,
use_placeholder: UsePlaceholder,
can_request: CanRequestImages,
) -> ImageCacheResult;
/// Add a new listener for the given pending image id. If the image is already present,