bfc0773285
These functions are required in the porting of the DocumentFragment interface from DeprecatedString to String. Unfortunately since ParentNode is used by Document, we can't fully remove the deprecated versions of these functions yet.
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/*
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* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
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* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/DeprecatedString.h>
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#include <AK/Vector.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/DocumentFragment.h>
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#include <LibWeb/DOM/NodeOperations.h>
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#include <LibWeb/DOM/Text.h>
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namespace Web::DOM {
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// https://dom.spec.whatwg.org/#converting-nodes-into-a-node
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Node>> convert_nodes_to_single_node(Vector<Variant<JS::Handle<Node>, String>> const& nodes, DOM::Document& document)
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{
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// 1. Let node be null.
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// 2. Replace each string in nodes with a new Text node whose data is the string and node document is document.
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// 3. If nodes contains one node, then set node to nodes[0].
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// 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.
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// 5. Return node.
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auto potentially_convert_string_to_text_node = [&document](Variant<JS::Handle<Node>, String> const& node) -> JS::NonnullGCPtr<Node> {
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if (node.has<JS::Handle<Node>>())
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return *node.get<JS::Handle<Node>>();
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return document.heap().allocate<DOM::Text>(document.realm(), document, node.get<String>());
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};
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if (nodes.size() == 1)
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return potentially_convert_string_to_text_node(nodes.first());
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auto document_fragment = document.heap().allocate<DOM::DocumentFragment>(document.realm(), document);
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for (auto const& unconverted_node : nodes) {
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auto node = potentially_convert_string_to_text_node(unconverted_node);
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(void)TRY(document_fragment->append_child(node));
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}
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return document_fragment;
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}
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Vector<Variant<JS::Handle<Node>, String>> from_deprecated_nodes(Vector<Variant<JS::Handle<Node>, DeprecatedString>> const& deprecated_nodes)
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{
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Vector<Variant<JS::Handle<Node>, String>> nodes;
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nodes.ensure_capacity(deprecated_nodes.size());
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for (auto const& deprecated_node : deprecated_nodes) {
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deprecated_node.visit(
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[&nodes](JS::Handle<Node> node) {
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nodes.unchecked_append(node);
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},
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[&nodes](DeprecatedString const& deprecated_node) {
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nodes.unchecked_append(MUST(String::from_deprecated_string(deprecated_node)));
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});
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}
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return nodes;
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}
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}
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