1/*
2 * Copyright (C) 2013 Samsung Electronics. 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
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#pragma once
30
31#include "Document.h"
32#include "HTMLScriptElement.h"
33
34namespace WebCore {
35
36class CurrentScriptIncrementer {
37 WTF_MAKE_NONCOPYABLE(CurrentScriptIncrementer);
38public:
39 CurrentScriptIncrementer(Document& document, Element& element)
40 : m_document(document)
41 , m_isHTMLScriptElement(is<HTMLScriptElement>(element))
42 {
43 if (!m_isHTMLScriptElement)
44 return;
45 auto& scriptElement = downcast<HTMLScriptElement>(element);
46 bool shouldPushNullForCurrentScript = scriptElement.isInShadowTree() || scriptElement.scriptType() == ScriptElement::ScriptType::Module;
47 m_document.pushCurrentScript(shouldPushNullForCurrentScript ? nullptr : &scriptElement);
48 }
49
50 ~CurrentScriptIncrementer()
51 {
52 if (!m_isHTMLScriptElement)
53 return;
54 m_document.popCurrentScript();
55 }
56
57private:
58 Document& m_document;
59 bool m_isHTMLScriptElement;
60};
61
62} // namespace WebCore
63