Support exporting shadow parts with the exportparts attribute (#37345)

The attribute is implemented as a new `AttrValue` variant containing the
mappings of exported part names
(https://github.com/servo/stylo/pull/197).

Take a look at the [MDN
page](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes/exportparts)
for more information about the attribute.


Testing: Covered by WPT
Fixes: https://github.com/servo/servo/issues/35349

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
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Simon Wülker 2025-06-13 13:32:20 +02:00 committed by GitHub
parent 730fe35b42
commit 6cac782fb1
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12 changed files with 42 additions and 45 deletions

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@ -4226,6 +4226,7 @@ impl VirtualMethods for Element {
local_name!("class") | local_name!("part") => {
AttrValue::from_serialized_tokenlist(value.into())
},
local_name!("exportparts") => AttrValue::from_shadow_parts(value.into()),
_ => self
.super_type()
.unwrap()