2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>
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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/Intrinsics.h>
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#include <LibWeb/DOM/Attr.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/MutationType.h>
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#include <LibWeb/DOM/StaticNodeList.h>
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namespace Web::DOM {
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JS::NonnullGCPtr<Attr> Attr::create(Document& document, DeprecatedFlyString local_name, DeprecatedString value, Element const* owner_element)
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{
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return document.heap().allocate<Attr>(document.realm(), document, QualifiedName(move(local_name), {}, {}), move(value), owner_element);
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}
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JS::NonnullGCPtr<Attr> Attr::clone(Document& document)
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{
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return *heap().allocate<Attr>(realm(), document, m_qualified_name, m_value, nullptr);
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}
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Attr::Attr(Document& document, QualifiedName qualified_name, DeprecatedString value, Element const* owner_element)
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: Node(document, NodeType::ATTRIBUTE_NODE)
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, m_qualified_name(move(qualified_name))
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, m_value(move(value))
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, m_owner_element(owner_element)
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{
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}
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JS::ThrowCompletionOr<void> Attr::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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set_prototype(&Bindings::ensure_web_prototype<Bindings::AttrPrototype>(realm, "Attr"));
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return {};
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}
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void Attr::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_owner_element.ptr());
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}
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Element* Attr::owner_element()
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{
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return m_owner_element.ptr();
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}
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Element const* Attr::owner_element() const
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{
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return m_owner_element.ptr();
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}
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void Attr::set_owner_element(Element const* owner_element)
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{
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m_owner_element = owner_element;
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}
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// https://dom.spec.whatwg.org/#set-an-existing-attribute-value
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void Attr::set_value(DeprecatedString value)
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{
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// 1. If attribute’s element is null, then set attribute’s value to value.
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if (!owner_element()) {
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m_value = move(value);
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return;
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}
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// 2. Otherwise, change attribute to value.
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// https://dom.spec.whatwg.org/#concept-element-attributes-change
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// 1. Handle attribute changes for attribute with attribute’s element, attribute’s value, and value.
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handle_attribute_changes(*owner_element(), m_value, value);
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// 2. Set attribute’s value to value.
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m_value = move(value);
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}
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// https://dom.spec.whatwg.org/#handle-attribute-changes
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void Attr::handle_attribute_changes(Element& element, DeprecatedString const& old_value, [[maybe_unused]] DeprecatedString const& new_value)
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{
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// 1. Queue a mutation record of "attributes" for element with attribute’s local name, attribute’s namespace, oldValue, « », « », null, and null.
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element.queue_mutation_record(MutationType::attributes, local_name(), namespace_uri(), old_value, StaticNodeList::create(realm(), {}), StaticNodeList::create(realm(), {}), nullptr, nullptr);
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// FIXME: 2. If element is custom, then enqueue a custom element callback reaction with element, callback name "attributeChangedCallback", and an argument list containing attribute’s local name, oldValue, newValue, and attribute’s namespace.
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// FIXME: 3. Run the attribute change steps with element, attribute’s local name, oldValue, newValue, and attribute’s namespace.
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}
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}
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