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Implemented paint worklet rendering context.

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This commit is contained in:
Alan Jeffrey 2017-06-09 12:47:39 -05:00
parent d47de6ccfc
commit 328fb25a65
15 changed files with 547 additions and 110 deletions
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22
components/script/script_thread.rs
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@ -256,6 +256,9 @@ pub enum MainThreadScriptMsg {
DOMManipulation(DOMManipulationTask),
/// Tasks that originate from the user interaction task source
UserInteraction(UserInteractionTask),
/// Notifies the script thread that a new worklet has been loaded, and thus the page should be
/// reflowed.
WorkletLoaded(PipelineId),
}
impl OpaqueSender<CommonScriptMsg> for Box<ScriptChan + Send> {
@ -724,6 +727,7 @@ impl ScriptThread {
devtools_chan: script_thread.devtools_chan.clone(),
constellation_chan: script_thread.constellation_chan.clone(),
scheduler_chan: script_thread.scheduler_chan.clone(),
image_cache: script_thread.image_cache.clone(),
};
Rc::new(WorkletThreadPool::spawn(chan, init))
}).clone()
@ -828,6 +832,7 @@ impl ScriptThread {
debug!("Starting script thread.");
while self.handle_msgs() {
// Go on...
debug!("Running script thread.");
}
debug!("Stopped script thread.");
}
@ -856,6 +861,7 @@ impl ScriptThread {
let mut sequential = vec![];
// Receive at least one message so we don't spinloop.
debug!("Waiting for event.");
let mut event = {
let sel = Select::new();
let mut script_port = sel.handle(&self.port);
@ -887,6 +893,7 @@ impl ScriptThread {
panic!("unexpected select result")
}
};
debug!("Got event.");
// Squash any pending resize, reflow, animation tick, and mouse-move events in the queue.
let mut mouse_move_event_index = None;
@ -983,6 +990,7 @@ impl ScriptThread {
}
// Process the gathered events.
debug!("Processing events.");
for msg in sequential {
debug!("Processing event {:?}.", msg);
let category = self.categorize_msg(&msg);
@ -1025,6 +1033,7 @@ impl ScriptThread {
// Issue batched reflows on any pages that require it (e.g. if images loaded)
// TODO(gw): In the future we could probably batch other types of reflows
// into this loop too, but for now it's only images.
debug!("Issuing batched reflows.");
for (_, document) in self.documents.borrow().iter() {
let window = document.window();
let pending_reflows = window.get_pending_reflow_count();
@ -1189,11 +1198,16 @@ impl ScriptThread {
// The category of the runnable is ignored by the pattern, however
// it is still respected by profiling (see categorize_msg).
if !runnable.is_cancelled() {
debug!("Running runnable.");
runnable.main_thread_handler(self)
} else {
debug!("Not running cancelled runnable.");
}
}
MainThreadScriptMsg::Common(CommonScriptMsg::CollectReports(reports_chan)) =>
self.collect_reports(reports_chan),
MainThreadScriptMsg::WorkletLoaded(pipeline_id) =>
self.handle_worklet_loaded(pipeline_id),
MainThreadScriptMsg::DOMManipulation(task) =>
task.handle_task(self),
MainThreadScriptMsg::UserInteraction(task) =>
@ -1759,6 +1773,14 @@ impl ScriptThread {
}
}
/// Handles a worklet being loaded. Does nothing if the page no longer exists.
fn handle_worklet_loaded(&self, pipeline_id: PipelineId) {
let document = self.documents.borrow().find_document(pipeline_id);
if let Some(document) = document {
self.rebuild_and_force_reflow(&document, ReflowReason::WorkletLoaded);
}
}
/// Notify a window of a storage event
fn handle_storage_event(&self, pipeline_id: PipelineId, storage_type: StorageType, url: ServoUrl,
key: Option<String>, old_value: Option<String>, new_value: Option<String>) {