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LibWeb: Implement the HTMLAnchorElement.relList attribute

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This returns a DOMTokenList that reflects the `rel` attribute.
This commit is contained in:
Tim Ledbetter 2024-05-16 06:02:55 +01:00 committed by Andreas Kling
parent 63246577d2
commit b7fd39c2e6
Notes: sideshowbarker 2024-07-17 03:51:15 +09:00 
Author: https://github.com/tcl3
Commit: https://github.com/SerenityOS/serenity/commit/b7fd39c2e6
Pull-request: https://github.com/SerenityOS/serenity/pull/24342
5 changed files with 50 additions and 1 deletions
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6
Tests/LibWeb/Text/expected/HTML/relList-attribute.txt Normal file
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@ -0,0 +1,6 @@
a.relList initial length: 0
a.relList always returns the same value: true
a.relList for after setting rel to "whatever": whatever
a.relList for after setting rel to "prefetch": prefetch
a.relList contains "prefetch": true
a.relList contains "whatever": false

26
Tests/LibWeb/Text/input/HTML/relList-attribute.html Normal file
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@ -0,0 +1,26 @@
<!DOCTYPE html>
<script src="../include.js"></script>
<script>
function relListTest(tagName) {
const element = document.createElement(tagName);
const relList = element.relList;
println(`${tagName}.relList initial length: ${relList.length}`);
println(`${tagName}.relList always returns the same value: ${relList === element.relList}`);
element.rel = "whatever";
println(`${tagName}.relList for after setting rel to "whatever": ${relList}`);
element.relList = "prefetch";
println(`${tagName}.relList for after setting rel to "prefetch": ${relList}`);
println(`${tagName}.relList contains "prefetch": ${relList.contains("prefetch")}`);
println(`${tagName}.relList contains "whatever": ${relList.contains("whatever")}`);
}
test(() => {
const tagNamesToTest = [
"a",
];
for (const tagName of tagNamesToTest) {
relListTest(tagName);
}
});
</script>

13
Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.cpp
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@ -7,6 +7,7 @@
#include <LibWeb/ARIA/Roles.h>
#include <LibWeb/Bindings/HTMLAnchorElementPrototype.h>
#include <LibWeb/DOM/DOMTokenList.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/HTML/AttributeNames.h>
#include <LibWeb/HTML/HTMLAnchorElement.h>
@ -38,6 +39,9 @@ void HTMLAnchorElement::attribute_changed(FlyString const& name, Optional<String
HTMLElement::attribute_changed(name, value);
if (name == HTML::AttributeNames::href) {
set_the_url();
} else if (name == HTML::AttributeNames::rel) {
if (m_rel_list)
m_rel_list->associated_attribute_changed(value.value_or(String {}));
}
}
@ -123,6 +127,15 @@ Optional<ARIA::Role> HTMLAnchorElement::default_role() const
return ARIA::Role::generic;
}
// https://html.spec.whatwg.org/multipage/text-level-semantics.html#dom-a-rellist
JS::GCPtr<DOM::DOMTokenList> HTMLAnchorElement::rel_list()
{
// The IDL attribute relList must reflect the rel content attribute.
if (!m_rel_list)
m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
return m_rel_list;
}
// https://html.spec.whatwg.org/multipage/text-level-semantics.html#dom-a-text
String HTMLAnchorElement::text() const
{

4
Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.h
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@ -24,6 +24,8 @@ public:
String target() const { return get_attribute_value(HTML::AttributeNames::target); }
String download() const { return get_attribute_value(HTML::AttributeNames::download); }
JS::GCPtr<DOM::DOMTokenList> rel_list();
String text() const;
void set_text(String const&);
@ -68,6 +70,8 @@ private:
}
virtual Optional<ARIA::Role> default_role() const override;
JS::GCPtr<DOM::DOMTokenList> m_rel_list;
};
}

2
Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.idl
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@ -11,7 +11,7 @@ interface HTMLAnchorElement : HTMLElement {
[CEReactions, Reflect] attribute DOMString download;
[CEReactions, Reflect] attribute DOMString ping;
[CEReactions, Reflect] attribute DOMString rel;
// FIXME: [SameObject, PutForwards=value] readonly attribute DOMTokenList relList;
[SameObject, PutForwards=value] readonly attribute DOMTokenList relList;
[CEReactions, Reflect] attribute DOMString hreflang;
[CEReactions, Reflect] attribute DOMString type;