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Stop using webrender_api::get_scroll_node_state (#30000)

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This API has been removed in the latest version of WebRender and we can
simply get this information from the compositor-side scroll tree. In
addition, this change limits the amount of data sent to the pipeline
that actually changed and gives the function in the compositor a better
name.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2023-07-17 11:33:24 +02:00 • committed by GitHub
parent cf78bd7a0f
commit e65f65a943
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 23 additions and 27 deletions
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50
components/compositing/compositor.rs
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@ -487,7 +487,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
(Msg::SetFrameTree(frame_tree), ShutdownState::NotShuttingDown) => {
self.set_frame_tree(&frame_tree);
self.send_viewport_rects();
self.send_scroll_positions_to_layout_for_pipeline(&frame_tree.pipeline.id);
},
(Msg::Recomposite(reason), ShutdownState::NotShuttingDown) => {
@ -1208,8 +1208,6 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
}
fn process_pending_scroll_events(&mut self) {
let had_events = self.pending_scroll_zoom_events.len() > 0;
// Batch up all scroll events into one, or else we'll do way too much painting.
let mut last_combined_event: Option<ScrollZoomEvent> = None;
for scroll_event in self.pending_scroll_zoom_events.drain(..) {
@ -1290,6 +1288,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
None => {},
}
}
self.send_scroll_positions_to_layout_for_pipeline(&result.pipeline_id);
if combined_event.magnification != 1.0 {
let old_zoom = self.pinch_zoom_level();
@ -1301,10 +1300,6 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
.send_transaction(self.webrender_document, txn);
self.waiting_for_results_of_scroll = true
}
if had_events {
self.send_viewport_rects();
}
}
/// If there are any animations running, dispatches appropriate messages to the constellation.
@ -1404,28 +1399,29 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
});
}
fn send_viewport_rects(&self) {
let mut scroll_states_per_pipeline = HashMap::new();
for scroll_layer_state in self
.webrender_api
.get_scroll_node_state(self.webrender_document)
{
let scroll_state = ScrollState {
scroll_id: scroll_layer_state.id,
scroll_offset: scroll_layer_state.scroll_offset,
};
fn send_scroll_positions_to_layout_for_pipeline(&self, pipeline_id: &PipelineId) {
let details = match self.pipeline_details.get(&pipeline_id) {
Some(details) => details,
None => return,
};
scroll_states_per_pipeline
.entry(scroll_layer_state.id.pipeline_id())
.or_insert(vec![])
.push(scroll_state);
}
for (pipeline_id, scroll_states) in scroll_states_per_pipeline {
if let Some(pipeline) = self.pipeline(pipeline_id.from_webrender()) {
let msg = LayoutControlMsg::SetScrollStates(scroll_states);
let _ = pipeline.layout_chan.send(msg);
let mut scroll_states = Vec::new();
details.scroll_tree.nodes.iter().for_each(|node| {
match (node.external_id(), node.offset()) {
(Some(scroll_id), Some(scroll_offset)) => {
scroll_states.push(ScrollState {
scroll_id,
scroll_offset,
});
},
_ => {},
}
});
if let Some(pipeline) = details.pipeline.as_ref() {
let _ = pipeline
.layout_chan
.send(LayoutControlMsg::SetScrollStates(scroll_states));
}
}