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Better implement getComputedStyle() for positioned insets

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The specification dictates quite quite idiosyncratic return values when
querying insets of positioned elements via getComputedStyle(). These
depend on whether or not the elements size was overconstrained. This
change adds a better implementation of that in preparation for returning
proper values for position: sticky.
This commit is contained in:
Martin Robinson 2023-04-28 17:17:43 +02:00
parent 4e37d07ea4
commit e167526618
26 changed files with 801 additions and 1318 deletions
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15
components/layout_2020/flow/root.rs
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@ -15,7 +15,7 @@ use crate::flow::float::FloatBox;
use crate::flow::inline::InlineLevelBox;
use crate::flow::{BlockContainer, BlockFormattingContext, BlockLevelBox};
use crate::formatting_contexts::IndependentFormattingContext;
use crate::fragment_tree::Tag;
use crate::fragment_tree::{ContainingBlockManager, Tag};
use crate::fragments::Fragment;
use crate::geom::flow_relative::Vec2;
use crate::geom::{PhysicalPoint, PhysicalRect, PhysicalSize};
@ -457,11 +457,14 @@ impl FragmentTree {
&self,
mut process_func: impl FnMut(&Fragment, usize, &PhysicalRect<Length>) -> Option<T>,
) -> Option<T> {
self.root_fragments.iter().find_map(|child| {
child
.borrow()
.find(&self.initial_containing_block, 0, &mut process_func)
})
let info = ContainingBlockManager {
for_non_absolute_descendants: &self.initial_containing_block,
for_absolute_descendants: None,
for_absolute_and_fixed_descendants: &self.initial_containing_block,
};
self.root_fragments
.iter()
.find_map(|child| child.borrow().find(&info, 0, &mut process_func))
}
pub fn remove_nodes_in_fragment_tree_from_set(&self, set: &mut FxHashSet<AnimationSetKey>) {