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Add support for HTMLStyleElement.media (#35148)

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Signed-off-by: webbeef <me@webbeef.org>
This commit is contained in:
webbeef 2025-01-24 20:34:58 -08:00 • committed by GitHub
parent fe5a075766
commit 8748071329
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GPG key ID: B5690EEEBB952194
11 changed files with 1389 additions and 1364 deletions
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76
components/script/dom/htmlstyleelement.rs
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@ -6,7 +6,7 @@ use std::cell::Cell;
use cssparser::{Parser as CssParser, ParserInput};
use dom_struct::dom_struct;
use html5ever::{local_name, namespace_url, ns, LocalName, Prefix};
use html5ever::{LocalName, Prefix};
use js::rust::HandleObject;
use net_traits::ReferrerPolicy;
use servo_arc::Arc;
@ -85,9 +85,30 @@ impl HTMLStyleElement {
)
}
fn create_media_list(&self, mq_str: &str) -> MediaList {
if mq_str.is_empty() {
return MediaList::empty();
}
let window = self.owner_window();
let doc = self.owner_document();
let url_data = UrlExtraData(window.get_url().get_arc());
let context = CssParserContext::new(
Origin::Author,
&url_data,
Some(CssRuleType::Media),
ParsingMode::DEFAULT,
doc.quirks_mode(),
/* namespaces = */ Default::default(),
window.css_error_reporter(),
None,
);
let mut input = ParserInput::new(mq_str);
MediaList::parse(&context, &mut CssParser::new(&mut input))
}
pub(crate) fn parse_own_css(&self) {
let node = self.upcast::<Node>();
let element = self.upcast::<Element>();
assert!(node.is_connected());
// Step 4. of <https://html.spec.whatwg.org/multipage/#the-style-element%3Aupdate-a-style-block>
@ -99,32 +120,11 @@ impl HTMLStyleElement {
let window = node.owner_window();
let doc = self.owner_document();
let mq_attribute = element.get_attribute(&ns!(), &local_name!("media"));
let mq_str = match mq_attribute {
Some(a) => String::from(&**a.value()),
None => String::new(),
};
let data = node
.GetTextContent()
.expect("Element.textContent must be a string");
let url_data = UrlExtraData(window.get_url().get_arc());
let css_error_reporter = window.css_error_reporter();
let context = CssParserContext::new(
Origin::Author,
&url_data,
Some(CssRuleType::Media),
ParsingMode::DEFAULT,
doc.quirks_mode(),
/* namespaces = */ Default::default(),
css_error_reporter,
None,
);
let shared_lock = node.owner_doc().style_shared_lock().clone();
let mut input = ParserInput::new(&mq_str);
let mq =
Arc::new(shared_lock.wrap(MediaList::parse(&context, &mut CssParser::new(&mut input))));
let mq = Arc::new(shared_lock.wrap(self.create_media_list(&self.Media())));
let loader = StylesheetLoader::for_element(self.upcast());
let sheet = Stylesheet::from_str(
&data,
@ -133,7 +133,7 @@ impl HTMLStyleElement {
mq,
shared_lock,
Some(&loader),
css_error_reporter,
window.css_error_reporter(),
doc.quirks_mode(),
AllowImportRules::Yes,
);
@ -259,10 +259,13 @@ impl VirtualMethods for HTMLStyleElement {
}
let node = self.upcast::<Node>();
if attr.name() == "type" &&
(node.is_in_a_document_tree() || node.is_in_a_shadow_tree()) &&
!self.in_stack_of_open_elements.get()
if !(node.is_in_a_document_tree() || node.is_in_a_shadow_tree()) ||
self.in_stack_of_open_elements.get()
{
return;
}
if attr.name() == "type" {
if let AttributeMutation::Set(Some(old_value)) = mutation {
if **old_value == **attr.value() {
return;
@ -270,6 +273,17 @@ impl VirtualMethods for HTMLStyleElement {
}
self.remove_stylesheet();
self.parse_own_css();
} else if attr.name() == "media" {
if let Some(ref stylesheet) = *self.stylesheet.borrow_mut() {
let shared_lock = node.owner_doc().style_shared_lock().clone();
let mut guard = shared_lock.write();
let media = stylesheet.media.write_with(&mut guard);
match mutation {
AttributeMutation::Set(_) => *media = self.create_media_list(&attr.value()),
AttributeMutation::Removed => *media = MediaList::empty(),
};
self.owner_document().invalidate_stylesheets();
}
}
}
}
@ -334,4 +348,10 @@ impl HTMLStyleElementMethods<crate::DomTypeHolder> for HTMLStyleElement {
// <https://html.spec.whatwg.org/multipage/#HTMLStyleElement-partial>
make_setter!(SetType, "type");
// <https://html.spec.whatwg.org/multipage/#attr-style-media>
make_getter!(Media, "media");
// <https://html.spec.whatwg.org/multipage/#attr-style-media>
make_setter!(SetMedia, "media");
}