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Fire slot change events when the slot content changes (#35137)

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* Add the onslotchange attribute to ShadowRoot

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Add spec comments to MutationObserver::queue_mutation_observer_microtask

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Add DomRefCell::take

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Add spec comments to notify_mutation_observers

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Fire slotchange events when a slot changes

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* ./mach fmt

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Fix check for when to dispatch slot events

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Potentially fire slot change events in Node::remove

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Update WPT expectations

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* ./mach fmt

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Bump stylo

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Move "signal a slot change" into ScriptThread impl

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
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Simon Wülker 2025-01-27 15:13:22 +01:00 • committed by GitHub
parent cd93841ba1
commit 859cc6ab9b
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17 changed files with 152 additions and 119 deletions
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3
components/script/dom/shadowroot.rs
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@ -325,6 +325,9 @@ impl ShadowRootMethods<crate::DomTypeHolder> for ShadowRoot {
fn SlotAssignment(&self) -> SlotAssignmentMode {
self.slot_assignment_mode
}
// https://dom.spec.whatwg.org/#dom-shadowroot-onslotchange
event_handler!(onslotchange, GetOnslotchange, SetOnslotchange);
}
impl VirtualMethods for ShadowRoot {