jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, the SerenityOS developers.
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibWeb/Bindings/MainThreadVM.h>
8#include <LibWeb/DOM/Document.h>
9#include <LibWeb/HTML/HTMLTemplateElement.h>
10
11namespace Web::HTML {
12
13HTMLTemplateElement::HTMLTemplateElement(DOM::Document& document, DOM::QualifiedName qualified_name)
14 : HTMLElement(document, move(qualified_name))
15{
16}
17
18HTMLTemplateElement::~HTMLTemplateElement() = default;
19
20JS::ThrowCompletionOr<void> HTMLTemplateElement::initialize(JS::Realm& realm)
21{
22 MUST_OR_THROW_OOM(Base::initialize(realm));
23 set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLTemplateElementPrototype>(realm, "HTMLTemplateElement"));
24
25 m_content = MUST_OR_THROW_OOM(heap().allocate<DOM::DocumentFragment>(realm, m_document->appropriate_template_contents_owner_document()));
26 m_content->set_host(this);
27
28 return {};
29}
30
31void HTMLTemplateElement::visit_edges(Cell::Visitor& visitor)
32{
33 Base::visit_edges(visitor);
34 visitor.visit(m_content.ptr());
35}
36
37// https://html.spec.whatwg.org/multipage/scripting.html#the-template-element:concept-node-adopt-ext
38void HTMLTemplateElement::adopted_from(DOM::Document&)
39{
40 // 1. Let doc be node's node document's appropriate template contents owner document.
41 auto doc = document().appropriate_template_contents_owner_document();
42
43 // 2. Adopt node's template contents (a DocumentFragment object) into doc.
44 doc->adopt_node(content());
45}
46
47// https://html.spec.whatwg.org/multipage/scripting.html#the-template-element:concept-node-clone-ext
48void HTMLTemplateElement::cloned(Node& copy, bool clone_children)
49{
50 if (!clone_children)
51 return;
52
53 auto& template_clone = verify_cast<HTMLTemplateElement>(copy);
54
55 content()->for_each_child([&](auto& child) {
56 auto cloned_child = child.clone_node(&template_clone.content()->document(), true);
57
58 // FIXME: Should this use TreeNode::append_child instead?
59 MUST(template_clone.content()->append_child(cloned_child));
60 });
61}
62
63}