ladybird/Libraries/LibWeb/DOM/Attr.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

63 lines
2 KiB
C++

/*
* Copyright (c) 2018-2021, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/WeakPtr.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/DOM/QualifiedName.h>
namespace Web::DOM {
// https://dom.spec.whatwg.org/#attr
class Attr final : public Node {
WEB_PLATFORM_OBJECT(Attr, Node);
GC_DECLARE_ALLOCATOR(Attr);
public:
[[nodiscard]] static GC::Ref<Attr> create(Document&, QualifiedName, String value = {}, Element* = nullptr);
[[nodiscard]] static GC::Ref<Attr> create(Document&, FlyString local_name, String value = {}, Element* = nullptr);
GC::Ref<Attr> clone(Document&);
virtual ~Attr() override = default;
virtual FlyString node_name() const override { return name(); }
Optional<FlyString> const& namespace_uri() const { return m_qualified_name.namespace_(); }
Optional<FlyString> const& prefix() const { return m_qualified_name.prefix(); }
FlyString const& local_name() const { return m_qualified_name.local_name(); }
FlyString const& name() const { return m_qualified_name.as_string(); }
FlyString const& lowercase_name() const { return m_lowercase_name; }
String const& value() const { return m_value; }
void set_value(String value);
void change_attribute(String value);
Element* owner_element();
Element const* owner_element() const;
void set_owner_element(Element* owner_element);
// Always returns true: https://dom.spec.whatwg.org/#dom-attr-specified
constexpr bool specified() const { return true; }
void handle_attribute_changes(Element&, Optional<String> const& old_value, Optional<String> const& new_value);
private:
Attr(Document&, QualifiedName, String value, Element*);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
QualifiedName m_qualified_name;
FlyString m_lowercase_name;
String m_value;
GC::Ptr<Element> m_owner_element;
};
template<>
inline bool Node::fast_is<Attr>() const { return is_attribute(); }
}