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Auto merge of #18212 - mrobinson:position-sticky, r=emilio
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. <!-- Please describe your changes on the following line: --> --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [ ] These changes fix #__ (github issue number if applicable). <!-- Either: --> - [x] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/18212) <!-- Reviewable:end -->
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commit
f1fab036ab
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, ISizeAndMarginsComputer, MarginsMayCollapseFlag};
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use context::LayoutContext;
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use display_list_builder::{BlockFlowDisplayListBuilding, BorderPaintingMode, DisplayListBuildState};
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use display_list_builder::{BlockFlowDisplayListBuilding, BorderPaintingMode};
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use display_list_builder::{DisplayListBuildState, EstablishContainingBlock};
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use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
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use flow::{self, Flow, FlowClass, IS_ABSOLUTELY_POSITIONED, OpaqueFlow};
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use fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
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@ -261,7 +262,7 @@ impl Flow for TableCellFlow {
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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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