ladybird/Userland/Libraries/LibWeb/DOM/LiveNodeList.h
Shannon Booth 1defc4595b LibWeb: Make LiveNodeList store a NonnullGCPtr<Node const> root
This allows us to improve the const-correctness in RadioNodeList, which
has been made possible as of: 5f0ccfb499 now that a GC-visit accepts a
const GC pointer.
2023-12-23 20:53:11 +01:00

51 lines
1.3 KiB
C++

/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibWeb/DOM/NodeList.h>
namespace Web::DOM {
// FIXME: Just like HTMLCollection, LiveNodeList currently does no caching.
class LiveNodeList : public NodeList {
WEB_PLATFORM_OBJECT(LiveNodeList, NodeList);
JS_DECLARE_ALLOCATOR(LiveNodeList);
public:
enum class Scope {
Children,
Descendants,
};
[[nodiscard]] static JS::NonnullGCPtr<NodeList> create(JS::Realm&, Node const& root, Scope, Function<bool(Node const&)> filter);
virtual ~LiveNodeList() override;
virtual u32 length() const override;
virtual Node const* item(u32 index) const override;
virtual bool is_supported_property_index(u32) const override;
protected:
LiveNodeList(JS::Realm&, Node const& root, Scope, Function<bool(Node const&)> filter);
Node* first_matching(Function<bool(Node const&)> const& filter) const;
private:
virtual void visit_edges(Cell::Visitor&) override;
JS::MarkedVector<Node*> collection() const;
JS::NonnullGCPtr<Node const> m_root;
Function<bool(Node const&)> m_filter;
Scope m_scope { Scope::Descendants };
};
}