mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 17:58:18 +03:00
d5c96c3ccf
`convert_nodes_to_single_node` is inside its own file so ChildNode can include and use it without having to include other headers such as DOM/Node.h. This is to prevent circular includes.
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
/*
|
|
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/String.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibWeb/DOM/DocumentFragment.h>
|
|
#include <LibWeb/DOM/NodeOperations.h>
|
|
#include <LibWeb/DOM/Text.h>
|
|
|
|
namespace Web::DOM {
|
|
|
|
// https://dom.spec.whatwg.org/#converting-nodes-into-a-node
|
|
ExceptionOr<NonnullRefPtr<Node>> convert_nodes_to_single_node(Vector<Variant<NonnullRefPtr<Node>, String>> const& nodes, DOM::Document& document)
|
|
{
|
|
// 1. Let node be null.
|
|
// 2. Replace each string in nodes with a new Text node whose data is the string and node document is document.
|
|
// 3. If nodes contains one node, then set node to nodes[0].
|
|
// 4. Otherwise, set node to a new DocumentFragment node whose node document is document, and then append each node in nodes, if any, to it.
|
|
// 5. Return node.
|
|
|
|
auto potentially_convert_string_to_text_node = [&document](Variant<NonnullRefPtr<Node>, String> const& node) -> NonnullRefPtr<Node> {
|
|
if (node.has<NonnullRefPtr<Node>>())
|
|
return node.get<NonnullRefPtr<Node>>();
|
|
|
|
return adopt_ref(*new Text(document, node.get<String>()));
|
|
};
|
|
|
|
if (nodes.size() == 1)
|
|
return potentially_convert_string_to_text_node(nodes.first());
|
|
|
|
// This is NNRP<Node> instead of NNRP<DocumentFragment> to be compatible with the return type.
|
|
NonnullRefPtr<Node> document_fragment = adopt_ref(*new DocumentFragment(document));
|
|
for (auto& unconverted_node : nodes) {
|
|
auto node = potentially_convert_string_to_text_node(unconverted_node);
|
|
auto result = document_fragment->append_child(node);
|
|
if (result.is_exception())
|
|
return result.exception();
|
|
}
|
|
|
|
return document_fragment;
|
|
}
|
|
|
|
}
|