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Add support for position:sticky

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This leverages the position:sticky support in WebRender to bring basic
support for position:sticky in Servo. There are still some issues with
nested sticky flows as well as a few other corner cases. Tests are
imported from WPT and can be removed once we update to the latest
version.
This commit is contained in:
Martin Robinson 2017-08-24 09:37:49 +02:00
parent 4725a05bfb
commit bc455c8a1f
84 changed files with 5729 additions and 50 deletions
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5
components/layout/table_wrapper.rs
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@ -17,7 +17,8 @@ use app_units::Au;
use block::{AbsoluteNonReplaced, BlockFlow, FloatNonReplaced, ISizeAndMarginsComputer, ISizeConstraintInput};
use block::{ISizeConstraintSolution, MarginsMayCollapseFlag};
use context::LayoutContext;
use display_list_builder::DisplayListBuildState;
use display_list_builder::{BlockFlowDisplayListBuilding, DisplayListBuildState};
use display_list_builder::EstablishContainingBlock;
use euclid::Point2D;
use floats::FloatKind;
use flow::{Flow, FlowClass, ImmutableFlowUtils, INLINE_POSITION_IS_STATIC, OpaqueFlow};
@ -463,7 +464,7 @@ impl Flow for TableWrapperFlow {
}
fn collect_stacking_contexts(&mut self, state: &mut DisplayListBuildState) {
self.block_flow.collect_stacking_contexts(state);
self.block_flow.collect_stacking_contexts_for_block(state, EstablishContainingBlock::No);
}
fn repair_style(&mut self, new_style: &::ServoArc<ComputedValues>) {