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Add support for position:sticky
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.
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84 changed files with 5729 additions and 50 deletions
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@ -9,7 +9,8 @@
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use app_units::Au;
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use block::BlockFlow;
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use context::LayoutContext;
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use display_list_builder::DisplayListBuildState;
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use display_list_builder::{BlockFlowDisplayListBuilding, DisplayListBuildState};
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use display_list_builder::EstablishContainingBlock;
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use euclid::Point2D;
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use flow::{Flow, FlowClass, OpaqueFlow};
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use fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
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@ -80,7 +81,7 @@ impl Flow for TableCaptionFlow {
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}
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fn collect_stacking_contexts(&mut self, state: &mut DisplayListBuildState) {
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self.block_flow.collect_stacking_contexts(state);
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self.block_flow.collect_stacking_contexts_for_block(state, EstablishContainingBlock::No);
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}
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fn repair_style(&mut self, new_style: &::ServoArc<ComputedValues>) {
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