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b75b7f0c0d
Callers that are already in a fallible context will now TRY to allocate cells. Callers in infallible contexts get a FIXME.
45 lines
1.8 KiB
C++
45 lines
1.8 KiB
C++
/*
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* Copyright (c) 2022, Luke Wilde <lukew@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>, DeprecatedString>> 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>, DeprecatedString> const& node) -> JS::ThrowCompletionOr<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 MUST_OR_THROW_OOM(document.heap().allocate<DOM::Text>(document.realm(), document, node.get<DeprecatedString>()));
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};
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if (nodes.size() == 1)
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return TRY(potentially_convert_string_to_text_node(nodes.first()));
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auto document_fragment = MUST_OR_THROW_OOM(document.heap().allocate<DOM::DocumentFragment>(document.realm(), document));
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for (auto& unconverted_node : nodes) {
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auto node = TRY(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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}
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