1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2001 Dirk Mueller (mueller (at) 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 STACK_ALLOCATED(); 36 public: 37 TreeScopeAdopter(Node& toAdopt, TreeScope& newScope); 38 39 void execute() const { moveTreeToNewScope(m_toAdopt); } 40 bool needsScopeChange() const { return m_oldScope != m_newScope; } 41 42 #ifdef NDEBUG 43 static void ensureDidMoveToNewDocumentWasCalled(Document&) { } 44 #else 45 static void ensureDidMoveToNewDocumentWasCalled(Document&); 46 #endif 47 48 private: 49 void updateTreeScope(Node&) const; 50 void moveTreeToNewScope(Node&) const; 51 void moveTreeToNewDocument(Node&, Document& oldDocument, Document& newDocument) const; 52 void moveNodeToNewDocument(Node&, Document& oldDocument, Document& newDocument) const; 53 54 Node& m_toAdopt; 55 TreeScope& m_newScope; 56 TreeScope& m_oldScope; 57 }; 58 59 inline TreeScopeAdopter::TreeScopeAdopter(Node& toAdopt, TreeScope& newScope) 60 : m_toAdopt(toAdopt) 61 , m_newScope(newScope) 62 , m_oldScope(toAdopt.treeScope()) 63 { 64 } 65 66 } 67 68 #endif 69
