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 "SplitElementCommand.h" 28 29#include "Element.h" 30#include "HTMLNames.h" 31#include <wtf/Assertions.h> 32 33namespace WebCore { 34 35SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild) 36 : SimpleEditCommand(element->document()) 37 , m_element2(element) 38 , m_atChild(atChild) 39{ 40 ASSERT(m_element2); 41 ASSERT(m_atChild); 42 ASSERT(m_atChild->parentNode() == m_element2); 43} 44 45void SplitElementCommand::executeApply() 46{ 47 if (m_atChild->parentNode() != m_element2) 48 return; 49 50 Vector<RefPtr<Node> > children; 51 for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling()) 52 children.append(node); 53 54 ExceptionCode ec = 0; 55 56 ContainerNode* parent = m_element2->parentNode(); 57 if (!parent || !parent->rendererIsEditable()) 58 return; 59 parent->insertBefore(m_element1.get(), m_element2.get(), ec); 60 if (ec) 61 return; 62 63 // Delete id attribute from the second element because the same id cannot be used for more than one element 64 m_element2->removeAttribute(HTMLNames::idAttr); 65 66 size_t size = children.size(); 67 for (size_t i = 0; i < size; ++i) 68 m_element1->appendChild(children[i], ec); 69} 70 71void SplitElementCommand::doApply() 72{ 73 m_element1 = m_element2->cloneElementWithoutChildren(); 74 75 executeApply(); 76} 77 78void SplitElementCommand::doUnapply() 79{ 80 if (!m_element1 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable()) 81 return; 82 83 Vector<RefPtr<Node> > children; 84 for (Node* node = m_element1->firstChild(); node; node = node->nextSibling()) 85 children.append(node); 86 87 RefPtr<Node> refChild = m_element2->firstChild(); 88 89 size_t size = children.size(); 90 for (size_t i = 0; i < size; ++i) 91 m_element2->insertBefore(children[i].get(), refChild.get(), IGNORE_EXCEPTION); 92 93 // Recover the id attribute of the original element. 94 if (m_element1->hasAttribute(HTMLNames::idAttr)) 95 m_element2->setAttribute(HTMLNames::idAttr, m_element1->getAttribute(HTMLNames::idAttr)); 96 97 m_element1->remove(IGNORE_EXCEPTION); 98} 99 100void SplitElementCommand::doReapply() 101{ 102 if (!m_element1) 103 return; 104 105 executeApply(); 106} 107 108#ifndef NDEBUG 109void SplitElementCommand::getNodesInCommand(HashSet<Node*>& nodes) 110{ 111 addNodeAndDescendants(m_element1.get(), nodes); 112 addNodeAndDescendants(m_element2.get(), nodes); 113 addNodeAndDescendants(m_atChild.get(), nodes); 114} 115#endif 116 117} // namespace WebCore 118