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Switch to using WebRender hit testing

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This trades quite a bit of complicated code in Servo for few more
messages and a significant performance improvement. In particular,
WebRender can search the entire display list at once instead of
ping-ponging down the pipeline tree. This allows us to send mouse
events to the correct pipeline immediately.
This commit is contained in:
Martin Robinson 2017-09-30 15:50:47 +02:00
parent 00e2a1c62a
commit b5d51dd263
20 changed files with 381 additions and 555 deletions
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38
components/constellation/constellation.rs
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@ -1082,6 +1082,12 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
debug!("constellation got {:?} WebVR events", events.len());
self.handle_webvr_events(pipeline_ids, events);
}
FromCompositorMsg::ForwardEvent(destination_pipeline_id, event) => {
self.forward_event(destination_pipeline_id, event);
}
FromCompositorMsg::SetCursor(cursor) => {
self.handle_set_cursor_msg(cursor)
}
}
}
@ -1175,15 +1181,8 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
debug!("constellation got focus message");
self.handle_focus_msg(source_pipeline_id);
}
FromScriptMsg::ForwardEvent(dest_id, event) => {
let msg = ConstellationControlMsg::SendEvent(dest_id, event);
let result = match self.pipelines.get(&dest_id) {
None => { debug!("Pipeline {:?} got event after closure.", dest_id); return; }
Some(pipeline) => pipeline.event_loop.send(msg),
};
if let Err(e) = result {
self.handle_send_error(dest_id, e);
}
FromScriptMsg::ForwardEvent(destination_pipeline_id, event) => {
self.forward_event(destination_pipeline_id, event);
}
FromScriptMsg::GetClipboardContents(sender) => {
let contents = match self.clipboard_ctx {
@ -1250,13 +1249,6 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
debug!("constellation got Alert message");
self.handle_alert(source_top_ctx_id, message, sender);
}
FromScriptMsg::ScrollFragmentPoint(scroll_root_id, point, smooth) => {
self.compositor_proxy.send(ToCompositorMsg::ScrollFragmentPoint(scroll_root_id,
point,
smooth));
}
FromScriptMsg::GetClientWindow(send) => {
self.embedder_proxy.send(EmbedderMsg::GetClientWindow(source_top_ctx_id, send));
}
@ -1592,6 +1584,20 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
}
}
fn forward_event(&mut self, destination_pipeline_id: PipelineId, event: CompositorEvent) {
let msg = ConstellationControlMsg::SendEvent(destination_pipeline_id, event);
let result = match self.pipelines.get(&destination_pipeline_id) {
None => {
debug!("Pipeline {:?} got event after closure.", destination_pipeline_id);
return;
}
Some(pipeline) => pipeline.event_loop.send(msg),
};
if let Err(e) = result {
self.handle_send_error(destination_pipeline_id, e);
}
}
fn handle_new_top_level_browsing_context(&mut self, url: ServoUrl, reply: IpcSender<TopLevelBrowsingContextId>) {
let window_size = self.window_size.initial_viewport;
let pipeline_id = PipelineId::new();