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Add a compositor-side scroll tree

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This will allow the compositor to properly chain scrolling requests up
when a node has reached the extent of the scroll area. This fixes
scrolling on servo.org.
This commit is contained in:
Martin Robinson 2023-05-15 15:48:12 +02:00
parent 918557ad6d
commit c56a814806
12 changed files with 677 additions and 102 deletions
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12
components/layout_thread/lib.rs
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@ -1064,21 +1064,19 @@ impl LayoutThread {
debug!("Layout done!");
// TODO: Avoid the temporary conversion and build webrender sc/dl directly!
let (builder, compositor_info, is_contentful) =
display_list.convert_to_webrender(self.id);
let viewport_size = Size2D::new(
let viewport_size = webrender_api::units::LayoutSize::new(
self.viewport_size.width.to_f32_px(),
self.viewport_size.height.to_f32_px(),
);
// TODO: Avoid the temporary conversion and build webrender sc/dl directly!
let (builder, compositor_info, is_contentful) =
display_list.convert_to_webrender(self.id, viewport_size);
let mut epoch = self.epoch.get();
epoch.next();
self.epoch.set(epoch);
let viewport_size = webrender_api::units::LayoutSize::from_untyped(viewport_size);
// Observe notifications about rendered frames if needed right before
// sending the display list to WebRender in order to set time related
// Progressive Web Metrics.