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Let layout invalidations happen in the flat tree (#35769)

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When invalidating layout, computing dirty roots and such,
we want to work in the flat tree. That means that the
children of slots are their assigned slottables, parents
of assigned slottables are their slots and the children
of an element include children of a potential shadow dom.

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This commit is contained in:
Simon Wülker 2025-03-06 10:24:14 +01:00 • committed by GitHub
parent fc891fff11
commit 37634b1251
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GPG key ID: B5690EEEBB952194
2 changed files with 43 additions and 8 deletions
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14
components/script/dom/document.rs
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@ -528,7 +528,7 @@ impl Document {
return;
}
let parent = match node.inclusive_ancestors(ShadowIncluding::Yes).nth(1) {
let parent = match node.parent_in_flat_tree() {
Some(parent) => parent,
None => {
// There is no parent so this is the Document node, so we
@ -542,7 +542,7 @@ impl Document {
// ancestors as dirty until the document element.
for ancestor in dirty_root
.upcast::<Node>()
.inclusive_ancestors(ShadowIncluding::Yes)
.inclusive_ancestors_in_flat_tree()
{
if ancestor.is::<Element>() {
ancestor.set_flag(NodeFlags::HAS_DIRTY_DESCENDANTS, true);
@ -596,13 +596,11 @@ impl Document {
Some(root) => root,
};
for ancestor in element
.upcast::<Node>()
.inclusive_ancestors(ShadowIncluding::Yes)
{
for ancestor in element.upcast::<Node>().inclusive_ancestors_in_flat_tree() {
if ancestor.get_flag(NodeFlags::HAS_DIRTY_DESCENDANTS) {
return;
}
if ancestor.is::<Element>() {
ancestor.set_flag(NodeFlags::HAS_DIRTY_DESCENDANTS, true);
}
@ -610,13 +608,13 @@ impl Document {
let new_dirty_root = element
.upcast::<Node>()
.common_ancestor(dirty_root.upcast(), ShadowIncluding::Yes)
.common_ancestor_in_flat_tree(dirty_root.upcast())
.expect("Couldn't find common ancestor");
let mut has_dirty_descendants = true;
for ancestor in dirty_root
.upcast::<Node>()
.inclusive_ancestors(ShadowIncluding::Yes)
.inclusive_ancestors_in_flat_tree()
{
ancestor.set_flag(NodeFlags::HAS_DIRTY_DESCENDANTS, has_dirty_descendants);
has_dirty_descendants &= *ancestor != *new_dirty_root;