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LibWeb: Add support for NodeList

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This introduces 3 classes: NodeList, StaticNodeList and LiveNodeList.
NodeList is the base of the static and live versions. Static is a
snapshot whereas live acts on the underlying data and thus inhibits
the same issues we have currently with HTMLCollection.

They were split into separate classes to not have them weirdly
mis-mashed together.

The create functions for static and live both return a NNRP to the base
class. This is to prevent having to do awkward casting at creation
and/or return, as the bindings expect to see the base NodeList only.
This commit is contained in:
Luke Wilde 2021-10-02 20:33:45 +01:00 • committed by Andreas Kling
parent bfd089fbd1
commit 8d6db36cbb
10 changed files with 221 additions and 1 deletions
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35
Userland/Libraries/LibWeb/DOM/StaticNodeList.h Normal file
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/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtrVector.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/DOM/NodeList.h>
namespace Web::DOM {
class StaticNodeList : public NodeList {
public:
static NonnullRefPtr<NodeList> create(NonnullRefPtrVector<Node>&& static_nodes)
{
return adopt_ref(*new StaticNodeList(move(static_nodes)));
}
virtual ~StaticNodeList() override = default;
virtual u32 length() const override;
virtual Node const* item(u32 index) const override;
virtual bool is_supported_property_index(u32) const override;
private:
StaticNodeList(NonnullRefPtrVector<Node>&& static_nodes);
NonnullRefPtrVector<Node> m_static_nodes;
};
}