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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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3
components/layout/query.rs
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@ -598,6 +598,7 @@ impl FragmentBorderBoxIterator for ParentOffsetBorderBoxIterator {
(true, _, _) |
(false, computed_values::position::T::static_, &SpecificFragmentInfo::Table) |
(false, computed_values::position::T::static_, &SpecificFragmentInfo::TableCell) |
(false, computed_values::position::T::sticky, _) |
(false, computed_values::position::T::absolute, _) |
(false, computed_values::position::T::relative, _) |
(false, computed_values::position::T::fixed, _) => true,
@ -766,7 +767,7 @@ where
let positioned = match style.get_box().position {
position::computed_value::T::relative |
/*position::computed_value::T::sticky |*/
position::computed_value::T::sticky |
position::computed_value::T::fixed |
position::computed_value::T::absolute => true,
_ => false