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implement basic infra for ResizeObserver (#31108)

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Gregory Terzian 2024-06-18 00:44:07 +08:00 • committed by GitHub
parent 3c1c395dfc
commit 3d78d60619
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29 changed files with 706 additions and 4 deletions
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22
components/script/script_thread.rs
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@ -859,6 +859,13 @@ impl ScriptThreadFactory for ScriptThread {
}
impl ScriptThread {
pub fn note_rendering_opportunity(pipeline_id: PipelineId) {
SCRIPT_THREAD_ROOT.with(|root| {
let script_thread = unsafe { &*root.get().unwrap() };
script_thread.rendering_opportunity(pipeline_id);
})
}
pub fn runtime_handle() -> ParentRuntime {
SCRIPT_THREAD_ROOT.with(|root| {
let script_thread = unsafe { &*root.get().unwrap() };
@ -1692,7 +1699,17 @@ impl ScriptThread {
// Run the animation frame callbacks.
document.tick_all_animations();
// TODO(#31006): Implement the resize observer steps.
// Run the resize observer steps.
let _realm = enter_realm(&*document);
let mut depth = Default::default();
while document.gather_active_resize_observations_at_depth(&depth) {
// Note: this will reflow the doc.
depth = document.broadcast_active_resize_observations();
}
if document.has_skipped_resize_observations() {
document.deliver_resize_loop_error_notification();
}
// TODO(#31870): Implement step 17: if the focused area of doc is not a focusable area,
// then run the focusing steps for document's viewport.
@ -1963,6 +1980,9 @@ impl ScriptThread {
for document in docs.iter() {
let _realm = enter_realm(&**document);
document.maybe_queue_document_completion();
// Document load is a rendering opportunity.
ScriptThread::note_rendering_opportunity(document.window().pipeline_id());
}
docs.clear();
}