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Don't drain ranges across shadow boundaries

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Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This commit is contained in:
Simon Wülker 2025-06-06 00:00:44 +02:00
parent 6c83f145e4
commit 7b6684a9b8
2 changed files with 8 additions and 5 deletions
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7
components/script/dom/node.rs
View file

@ -3936,7 +3936,12 @@ impl VirtualMethods for Node {
/// <https://dom.spec.whatwg.org/#concept-node-remove>
fn unbind_from_tree(&self, context: &UnbindContext, can_gc: CanGc) {
self.super_type().unwrap().unbind_from_tree(context, can_gc);
if !self.ranges_is_empty() {
// Ranges should only drain to the parent from inclusive non-shadow
// including descendants. If we're in a shadow tree at this point then the
// unbind operation happened further up in the tree and we should not
// drain any ranges.
if !self.is_in_a_shadow_tree() && !self.ranges_is_empty() {
self.ranges().drain_to_parent(context, self);
}
}

6
components/script/dom/range.rs
View file

@ -346,6 +346,7 @@ impl Range {
}
/// <https://dom.spec.whatwg.org/#concept-range-bp-set>
#[allow(clippy::neg_cmp_op_on_partial_ord)]
fn set_the_start_or_end(
&self,
node: &Node,
@ -373,7 +374,6 @@ impl Range {
// Step 4.2 Set range’s start to bp.
self.set_start(node, offset);
if !(self.start() <= self.end()) {
// Step 4.
self.set_end(node, offset);
}
},
@ -384,7 +384,6 @@ impl Range {
// Step 4.2 Set range’s end to bp.
self.set_end(node, offset);
if !(self.end() >= self.start()) {
// Step 4.
self.set_start(node, offset);
}
},
@ -418,13 +417,11 @@ impl RangeMethods<crate::DomTypeHolder> for Range {
}
/// <https://dom.spec.whatwg.org/#dom-range-setstart>
#[allow(clippy::neg_cmp_op_on_partial_ord)]
fn SetStart(&self, node: &Node, offset: u32) -> ErrorResult {
self.set_the_start_or_end(node, offset, StartOrEnd::Start)
}
/// <https://dom.spec.whatwg.org/#dom-range-setend>
#[allow(clippy::neg_cmp_op_on_partial_ord)]
fn SetEnd(&self, node: &Node, offset: u32) -> ErrorResult {
self.set_the_start_or_end(node, offset, StartOrEnd::End)
}
@ -1229,6 +1226,7 @@ impl WeakRangeVec {
}
/// Used for steps 2-3. when removing a node.
///
/// <https://dom.spec.whatwg.org/#concept-node-remove>
pub(crate) fn drain_to_parent(&self, context: &UnbindContext, child: &Node) {
if self.is_empty() {