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 | |
34 | namespace WebCore { |
35 | |
36 | class CurrentScriptIncrementer { |
37 | WTF_MAKE_NONCOPYABLE(CurrentScriptIncrementer); |
38 | public: |
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 | |
57 | private: |
58 | Document& m_document; |
59 | bool m_isHTMLScriptElement; |
60 | }; |
61 | |
62 | } // namespace WebCore |
63 | |