mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 17:58:18 +03:00
81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
/*
|
||
* Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <LibWeb/Bindings/AttributePrototype.h>
|
||
#include <LibWeb/DOM/Attribute.h>
|
||
#include <LibWeb/DOM/Document.h>
|
||
#include <LibWeb/DOM/Element.h>
|
||
#include <LibWeb/DOM/MutationType.h>
|
||
#include <LibWeb/DOM/StaticNodeList.h>
|
||
|
||
namespace Web::DOM {
|
||
|
||
JS::NonnullGCPtr<Attribute> Attribute::create(Document& document, FlyString local_name, String value, Element const* owner_element)
|
||
{
|
||
return *document.heap().allocate<Attribute>(document.realm(), document, move(local_name), move(value), owner_element);
|
||
}
|
||
|
||
Attribute::Attribute(Document& document, FlyString local_name, String value, Element const* owner_element)
|
||
: Node(document, NodeType::ATTRIBUTE_NODE)
|
||
, m_qualified_name(move(local_name), {}, {})
|
||
, m_value(move(value))
|
||
, m_owner_element(owner_element)
|
||
{
|
||
set_prototype(&window().ensure_web_prototype<Bindings::AttributePrototype>("Attribute"));
|
||
}
|
||
|
||
void Attribute::visit_edges(Cell::Visitor& visitor)
|
||
{
|
||
Base::visit_edges(visitor);
|
||
visitor.visit(m_owner_element.ptr());
|
||
}
|
||
|
||
Element* Attribute::owner_element()
|
||
{
|
||
return m_owner_element.ptr();
|
||
}
|
||
|
||
Element const* Attribute::owner_element() const
|
||
{
|
||
return m_owner_element.ptr();
|
||
}
|
||
|
||
void Attribute::set_owner_element(Element const* owner_element)
|
||
{
|
||
m_owner_element = owner_element;
|
||
}
|
||
|
||
// https://dom.spec.whatwg.org/#set-an-existing-attribute-value
|
||
void Attribute::set_value(String value)
|
||
{
|
||
// 1. If attribute’s element is null, then set attribute’s value to value.
|
||
if (!owner_element()) {
|
||
m_value = move(value);
|
||
return;
|
||
}
|
||
|
||
// 2. Otherwise, change attribute to value.
|
||
// https://dom.spec.whatwg.org/#concept-element-attributes-change
|
||
// 1. Handle attribute changes for attribute with attribute’s element, attribute’s value, and value.
|
||
handle_attribute_changes(*owner_element(), m_value, value);
|
||
|
||
// 2. Set attribute’s value to value.
|
||
m_value = move(value);
|
||
}
|
||
|
||
// https://dom.spec.whatwg.org/#handle-attribute-changes
|
||
void Attribute::handle_attribute_changes(Element& element, String const& old_value, [[maybe_unused]] String const& new_value)
|
||
{
|
||
// 1. Queue a mutation record of "attributes" for element with attribute’s local name, attribute’s namespace, oldValue, « », « », null, and null.
|
||
element.queue_mutation_record(MutationType::attributes, local_name(), namespace_uri(), old_value, StaticNodeList::create(window(), {}), StaticNodeList::create(window(), {}), nullptr, nullptr);
|
||
|
||
// 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.
|
||
|
||
// FIXME: 3. Run the attribute change steps with element, attribute’s local name, oldValue, newValue, and attribute’s namespace.
|
||
}
|
||
|
||
}
|