1/* 2 * Copyright (C) 2005, 2008 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "MergeIdenticalElementsCommand.h" 28 29#include "Element.h" 30 31namespace WebCore { 32 33MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtr<Element> first, PassRefPtr<Element> second) 34 : SimpleEditCommand(first->document()) 35 , m_element1(first) 36 , m_element2(second) 37{ 38 ASSERT(m_element1); 39 ASSERT(m_element2); 40 ASSERT(m_element1->nextSibling() == m_element2); 41} 42 43void MergeIdenticalElementsCommand::doApply() 44{ 45 if (m_element1->nextSibling() != m_element2 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable()) 46 return; 47 48 m_atChild = m_element2->firstChild(); 49 50 Vector<RefPtr<Node> > children; 51 for (Node* child = m_element1->firstChild(); child; child = child->nextSibling()) 52 children.append(child); 53 54 size_t size = children.size(); 55 for (size_t i = 0; i < size; ++i) 56 m_element2->insertBefore(children[i].release(), m_atChild.get(), IGNORE_EXCEPTION); 57 58 m_element1->remove(IGNORE_EXCEPTION); 59} 60 61void MergeIdenticalElementsCommand::doUnapply() 62{ 63 ASSERT(m_element1); 64 ASSERT(m_element2); 65 66 RefPtr<Node> atChild = m_atChild.release(); 67 68 ContainerNode* parent = m_element2->parentNode(); 69 if (!parent || !parent->rendererIsEditable()) 70 return; 71 72 ExceptionCode ec = 0; 73 74 parent->insertBefore(m_element1.get(), m_element2.get(), ec); 75 if (ec) 76 return; 77 78 Vector<RefPtr<Node> > children; 79 for (Node* child = m_element2->firstChild(); child && child != atChild; child = child->nextSibling()) 80 children.append(child); 81 82 size_t size = children.size(); 83 for (size_t i = 0; i < size; ++i) 84 m_element1->appendChild(children[i].release(), ec); 85} 86 87#ifndef NDEBUG 88void MergeIdenticalElementsCommand::getNodesInCommand(HashSet<Node*>& nodes) 89{ 90 addNodeAndDescendants(m_element1.get(), nodes); 91 addNodeAndDescendants(m_element2.get(), nodes); 92} 93#endif 94 95} // namespace WebCore 96