1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
6 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
7 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
8 * Copyright (C) 2011 Google Inc. All rights reserved.
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Library General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Library General Public License for more details.
19 *
20 * You should have received a copy of the GNU Library General Public License
21 * along with this library; see the file COPYING.LIB. If not, write to
22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 * Boston, MA 02110-1301, USA.
24 */
25 #ifndef TreeScopeAdopter_h
26 #define TreeScopeAdopter_h
27
28 #include "core/dom/Node.h"
29
30 namespace WebCore {
31
32 class TreeScope;
33
34 class TreeScopeAdopter {
35 public:
36 TreeScopeAdopter(Node& toAdopt, TreeScope& newScope);
37
execute()38 void execute() const { moveTreeToNewScope(m_toAdopt); }
needsScopeChange()39 bool needsScopeChange() const { return m_oldScope != m_newScope; }
40
41 #ifdef NDEBUG
ensureDidMoveToNewDocumentWasCalled(Document &)42 static void ensureDidMoveToNewDocumentWasCalled(Document&) { }
43 #else
44 static void ensureDidMoveToNewDocumentWasCalled(Document&);
45 #endif
46
47 private:
48 void updateTreeScope(Node&) const;
49 void moveTreeToNewScope(Node&) const;
50 void moveTreeToNewDocument(Node&, Document& oldDocument, Document* newDocument) const;
51 void moveNodeToNewDocument(Node&, Document& oldDocument, Document* newDocument) const;
52
53 Node& m_toAdopt;
54 TreeScope& m_newScope;
55 TreeScope& m_oldScope;
56 };
57
TreeScopeAdopter(Node & toAdopt,TreeScope & newScope)58 inline TreeScopeAdopter::TreeScopeAdopter(Node& toAdopt, TreeScope& newScope)
59 : m_toAdopt(toAdopt)
60 , m_newScope(newScope)
61 , m_oldScope(toAdopt.treeScope())
62 {
63 }
64
65 }
66
67 #endif
68