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Add initial support for scrollable overflow in layout_2020

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This still isn't totally correct and non-root scrolling is not handled
at all, but the root frame now scrolls.
This commit is contained in:
Martin Robinson 2020-01-15 13:48:25 +01:00
parent 74d1f02a6a
commit 8825d588c1
7 changed files with 212 additions and 56 deletions
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8
components/layout_thread_2020/lib.rs
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@ -1374,12 +1374,16 @@ impl LayoutThread {
document.will_paint();
}
let mut display_list = DisplayListBuilder::new(
self.id.to_webrender(),
context,
fragment_tree.scrollable_overflow(),
);
let viewport_size = webrender_api::units::LayoutSize::from_untyped(Size2D::new(
self.viewport_size.width.to_f32_px(),
self.viewport_size.height.to_f32_px(),
));
let mut display_list =
DisplayListBuilder::new(self.id.to_webrender(), context, viewport_size);
fragment_tree.build_display_list(&mut display_list, viewport_size);
if self.dump_flow_tree {