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https://github.com/LadybirdBrowser/ladybird.git
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7c06c3fd14
Move ComputedProperties and CascadedProperties out of the GC. They no longer contain strong references to GC-managed data. Keep computed styles alive from DOM elements and animation updates with RefPtr. Pass style into layout constructors by reference, since layout only copies the values it needs while building nodes. Use GC::Weak for cascade source links, so entries no longer keep the style declaration or shadow root alive.
100 lines
3.7 KiB
C++
100 lines
3.7 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/HTMLFieldSetElement.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/HTML/HTMLButtonElement.h>
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#include <LibWeb/HTML/HTMLFieldSetElement.h>
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#include <LibWeb/HTML/HTMLInputElement.h>
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#include <LibWeb/HTML/HTMLLegendElement.h>
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#include <LibWeb/HTML/HTMLObjectElement.h>
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#include <LibWeb/HTML/HTMLOutputElement.h>
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#include <LibWeb/HTML/HTMLSelectElement.h>
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#include <LibWeb/HTML/HTMLTextAreaElement.h>
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#include <LibWeb/Layout/FieldSetBox.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(HTMLFieldSetElement);
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HTMLFieldSetElement::HTMLFieldSetElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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HTMLFieldSetElement::~HTMLFieldSetElement() = default;
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void HTMLFieldSetElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLFieldSetElement);
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Base::initialize(realm);
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}
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void HTMLFieldSetElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_elements);
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}
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// https://html.spec.whatwg.org/multipage/form-elements.html#concept-fieldset-disabled
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bool HTMLFieldSetElement::is_disabled() const
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{
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// A fieldset element is a disabled fieldset if it matches any of the following conditions:
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// - Its disabled attribute is specified
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if (has_attribute(AttributeNames::disabled))
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return true;
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// - 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.
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for (auto* fieldset_ancestor = first_ancestor_of_type<HTMLFieldSetElement>(); fieldset_ancestor; fieldset_ancestor = fieldset_ancestor->first_ancestor_of_type<HTMLFieldSetElement>()) {
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if (fieldset_ancestor->has_attribute(HTML::AttributeNames::disabled)) {
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auto* first_legend_element_child = fieldset_ancestor->first_child_of_type<HTMLLegendElement>();
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if (!first_legend_element_child || !is_descendant_of(*first_legend_element_child))
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return true;
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}
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}
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return false;
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}
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void HTMLFieldSetElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
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{
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Base::attribute_changed(name, old_value, value, namespace_);
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if (name == HTML::AttributeNames::disabled) {
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for_each_in_subtree_of_type<HTMLElement>([](auto& element) {
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if (element.is_form_associated_custom_element())
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element.update_face_disabled_state();
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return TraversalDecision::Continue;
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});
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}
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}
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// https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-elements
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GC::Ptr<DOM::HTMLCollection> const& HTMLFieldSetElement::elements()
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{
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// The elements IDL attribute must return an HTMLCollection rooted at the fieldset element, whose filter matches listed elements.
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if (!m_elements) {
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m_elements = DOM::HTMLCollection::create(*this, DOM::HTMLCollection::Scope::Descendants, [](DOM::Element const& element) {
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if (auto const* form_associated_element = as_if<FormAssociatedElement>(element); form_associated_element && form_associated_element->is_listed())
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return true;
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return false;
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});
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}
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return m_elements;
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}
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Layout::FieldSetBox* HTMLFieldSetElement::layout_node()
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{
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return static_cast<Layout::FieldSetBox*>(Node::layout_node());
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}
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GC::Ptr<Layout::Node> HTMLFieldSetElement::create_layout_node(CSS::ComputedProperties const& style)
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{
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return heap().allocate<Layout::FieldSetBox>(document(), *this, style);
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}
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}
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