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layout: Separate out overflow-for-scrolling from overflow-for-paint.

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Closes #9484.
This commit is contained in:
Patrick Walton 2016-02-03 10:51:41 -08:00
parent f605c6aa69
commit 7c5b2d6cb3
17 changed files with 131 additions and 56 deletions
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7
components/layout/list_item.rs
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@ -11,10 +11,11 @@ use app_units::Au;
use block::BlockFlow;
use context::LayoutContext;
use display_list_builder::ListItemFlowDisplayListBuilding;
use euclid::{Point2D, Rect};
use euclid::Point2D;
use floats::FloatKind;
use flow::{Flow, FlowClass, OpaqueFlow};
use fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, GeneratedContentInfo};
use fragment::{Overflow};
use generated_content;
use gfx::display_list::DisplayList;
use incremental::RESOLVE_GENERATED_CONTENT;
@ -152,14 +153,14 @@ impl Flow for ListItemFlow {
self.block_flow.repair_style(new_style)
}
fn compute_overflow(&self) -> Rect<Au> {
fn compute_overflow(&self) -> Overflow {
let mut overflow = self.block_flow.compute_overflow();
let flow_size = self.block_flow.base.position.size.to_physical(self.block_flow.base.writing_mode);
let relative_containing_block_size =
&self.block_flow.base.early_absolute_position_info.relative_containing_block_size;
for fragment in &self.marker_fragments {
overflow = overflow.union(&fragment.compute_overflow(&flow_size, &relative_containing_block_size))
overflow.union(&fragment.compute_overflow(&flow_size, &relative_containing_block_size))
}
overflow
}