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LibWeb: Implement :enabled and :disabled pseudo classes to spec

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Previously we only considered an element disabled if it was an <input>
element with the disabled attribute, but there's way more elements that
apply with more nuanced disabled/enabled rules.
This commit is contained in:
Luke Wilde 2022-09-30 16:21:34 +01:00 • committed by Andreas Kling
parent c85fcd442f
commit 2133b7d58a
Notes: sideshowbarker 2024-07-17 06:32:16 +09:00
7 changed files with 82 additions and 10 deletions
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22
Userland/Libraries/LibWeb/HTML/HTMLFieldSetElement.cpp
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@ -5,6 +5,7 @@
*/
#include <LibWeb/HTML/HTMLFieldSetElement.h>
#include <LibWeb/HTML/HTMLLegendElement.h>
#include <LibWeb/HTML/Window.h>
namespace Web::HTML {
@ -16,4 +17,25 @@ HTMLFieldSetElement::HTMLFieldSetElement(DOM::Document& document, DOM::Qualified
}
HTMLFieldSetElement::~HTMLFieldSetElement() = default;
// https://html.spec.whatwg.org/multipage/form-elements.html#concept-fieldset-disabled
bool HTMLFieldSetElement::is_disabled() const
{
// A fieldset element is a disabled fieldset if it matches any of the following conditions:
// - Its disabled attribute is specified
if (has_attribute(AttributeNames::disabled))
return true;
// - It is a descendant of another fieldset element whose disabled attribute is specified, and is not a descendant of that fieldset element's first legend element child, if any.
for (auto* fieldset_ancestor = first_ancestor_of_type<HTMLFieldSetElement>(); fieldset_ancestor; fieldset_ancestor = fieldset_ancestor->first_ancestor_of_type<HTMLFieldSetElement>()) {
if (fieldset_ancestor->has_attribute(HTML::AttributeNames::disabled)) {
auto* first_legend_element_child = fieldset_ancestor->first_child_of_type<HTMLLegendElement>();
if (!first_legend_element_child || !is_descendant_of(*first_legend_element_child))
return true;
}
}
return false;
}
}