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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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12
components/layout/inline.rs
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@ -8,12 +8,13 @@ use app_units::Au;
use block::AbsoluteAssignBSizesTraversal;
use context::LayoutContext;
use display_list_builder::{FragmentDisplayListBuilding, InlineFlowDisplayListBuilding};
use euclid::{Point2D, Rect, Size2D};
use euclid::{Point2D, Size2D};
use floats::{FloatKind, Floats, PlacementInfo};
use flow::{EarlyAbsolutePositionInfo, MutableFlowUtils, OpaqueFlow};
use flow::{self, BaseFlow, Flow, FlowClass, ForceNonfloatedFlag, IS_ABSOLUTELY_POSITIONED};
use flow_ref;
use fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, SpecificFragmentInfo};
use fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, Overflow};
use fragment::{SpecificFragmentInfo};
use gfx::display_list::OpaqueNode;
use gfx::font::FontMetrics;
use gfx::font_context::FontContext;
@ -1756,14 +1757,13 @@ impl Flow for InlineFlow {
fn repair_style(&mut self, _: &Arc<ComputedValues>) {}
fn compute_overflow(&self) -> Rect<Au> {
let mut overflow = Rect::zero();
fn compute_overflow(&self) -> Overflow {
let mut overflow = Overflow::new();
let flow_size = self.base.position.size.to_physical(self.base.writing_mode);
let relative_containing_block_size =
&self.base.early_absolute_position_info.relative_containing_block_size;
for fragment in &self.fragments.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
}