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Remove event handlers when attribute is removed (#38734)

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We wouldn't handle the AttributeMutation::Removed for
attribute event listeners and wouldn't remove the
corresponding event listener. Added the necessary
logic (using the newly EventTarget::is_content_event_handler
to correctly only do this for known event handlers) and
added links to the relevant parts of the spec.

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
This commit is contained in:
Tim van der Lippe 2025-08-22 21:43:04 +02:00 • committed by GitHub
parent 1ad0ad6f25
commit f334a56b07
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7 changed files with 38 additions and 55 deletions
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4
components/script/dom/macros.rs
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@ -524,8 +524,10 @@ macro_rules! global_event_handlers(
(NoOnload) => (
event_handler!(abort, GetOnabort, SetOnabort);
event_handler!(auxclick, GetOnauxclick, SetOnauxclick);
event_handler!(animationend, GetOnanimationend, SetOnanimationend);
event_handler!(animationstart, GetOnanimationstart, SetOnanimationstart);
event_handler!(animationiteration, GetOnanimationiteration, SetOnanimationiteration);
event_handler!(animationend, GetOnanimationend, SetOnanimationend);
event_handler!(animationcancel, GetOnanimationcancel, SetOnanimationcancel);
event_handler!(beforeinput, GetOnbeforeinput, SetOnbeforeinput);
event_handler!(beforematch, GetOnbeforematch, SetOnbeforematch);
event_handler!(beforetoggle, GetOnbeforetoggle, SetOnbeforetoggle);