1/*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32
33#include "core/html/HTMLTemplateElement.h"
34
35#include "core/dom/Document.h"
36#include "core/dom/DocumentFragment.h"
37#include "core/dom/TemplateContentDocumentFragment.h"
38
39namespace blink {
40
41using namespace HTMLNames;
42
43inline HTMLTemplateElement::HTMLTemplateElement(Document& document)
44    : HTMLElement(templateTag, document)
45{
46}
47
48DEFINE_NODE_FACTORY(HTMLTemplateElement)
49
50HTMLTemplateElement::~HTMLTemplateElement()
51{
52#if !ENABLE(OILPAN)
53    if (m_content)
54        m_content->clearHost();
55#endif
56}
57
58DocumentFragment* HTMLTemplateElement::content() const
59{
60    if (!m_content)
61        m_content = TemplateContentDocumentFragment::create(document().ensureTemplateDocument(), const_cast<HTMLTemplateElement*>(this));
62
63    return m_content.get();
64}
65
66PassRefPtrWillBeRawPtr<Node> HTMLTemplateElement::cloneNode(bool deep)
67{
68    if (!deep)
69        return cloneElementWithoutChildren();
70
71    RefPtrWillBeRawPtr<Node> clone = cloneElementWithChildren();
72    if (m_content)
73        content()->cloneChildNodes(toHTMLTemplateElement(clone.get())->content());
74    return clone.release();
75}
76
77void HTMLTemplateElement::didMoveToNewDocument(Document& oldDocument)
78{
79    HTMLElement::didMoveToNewDocument(oldDocument);
80    if (!m_content)
81        return;
82    document().ensureTemplateDocument().adoptIfNeeded(*m_content);
83}
84
85void HTMLTemplateElement::trace(Visitor* visitor)
86{
87    visitor->trace(m_content);
88    HTMLElement::trace(visitor);
89}
90
91} // namespace blink
92