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/*
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/DeprecatedString.h>
#include <AK/Vector.h>
#include <LibWeb/DOM/Document.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
WebIDL::ExceptionOr<JS::NonnullGCPtr<Node>> convert_nodes_to_single_node(Vector<Variant<JS::Handle<Node>, DeprecatedString>> 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<JS::Handle<Node>, DeprecatedString> const& node) -> JS::NonnullGCPtr<Node> {
if (node.has<JS::Handle<Node>>())
return *node.get<JS::Handle<Node>>();
return document.heap().allocate<DOM::Text>(document.realm(), document, node.get<DeprecatedString>());
};
if (nodes.size() == 1)
return potentially_convert_string_to_text_node(nodes.first());
auto document_fragment = document.heap().allocate<DOM::DocumentFragment>(document.realm(), document);
for (auto& unconverted_node : nodes) {
auto node = potentially_convert_string_to_text_node(unconverted_node);
(void)TRY(document_fragment->append_child(node));
}
return document_fragment;
}
}
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