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 "core/editing/SplitElementCommand.h" 28 29#include "HTMLNames.h" 30#include "bindings/v8/ExceptionState.h" 31#include "bindings/v8/ExceptionStatePlaceholder.h" 32#include "core/dom/Element.h" 33#include "wtf/Assertions.h" 34 35namespace WebCore { 36 37SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild) 38 : SimpleEditCommand(element->document()) 39 , m_element2(element) 40 , m_atChild(atChild) 41{ 42 ASSERT(m_element2); 43 ASSERT(m_atChild); 44 ASSERT(m_atChild->parentNode() == m_element2); 45} 46 47void SplitElementCommand::executeApply() 48{ 49 if (m_atChild->parentNode() != m_element2) 50 return; 51 52 Vector<RefPtr<Node> > children; 53 for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling()) 54 children.append(node); 55 56 TrackExceptionState es; 57 58 ContainerNode* parent = m_element2->parentNode(); 59 if (!parent || !parent->rendererIsEditable()) 60 return; 61 parent->insertBefore(m_element1.get(), m_element2.get(), es); 62 if (es.hadException()) 63 return; 64 65 // Delete id attribute from the second element because the same id cannot be used for more than one element 66 m_element2->removeAttribute(HTMLNames::idAttr); 67 68 size_t size = children.size(); 69 for (size_t i = 0; i < size; ++i) 70 m_element1->appendChild(children[i], es); 71} 72 73void SplitElementCommand::doApply() 74{ 75 m_element1 = m_element2->cloneElementWithoutChildren(); 76 77 executeApply(); 78} 79 80void SplitElementCommand::doUnapply() 81{ 82 if (!m_element1 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable()) 83 return; 84 85 Vector<RefPtr<Node> > children; 86 for (Node* node = m_element1->firstChild(); node; node = node->nextSibling()) 87 children.append(node); 88 89 RefPtr<Node> refChild = m_element2->firstChild(); 90 91 size_t size = children.size(); 92 for (size_t i = 0; i < size; ++i) 93 m_element2->insertBefore(children[i].get(), refChild.get(), IGNORE_EXCEPTION); 94 95 // Recover the id attribute of the original element. 96 if (m_element1->hasAttribute(HTMLNames::idAttr)) 97 m_element2->setAttribute(HTMLNames::idAttr, m_element1->getAttribute(HTMLNames::idAttr)); 98 99 m_element1->remove(IGNORE_EXCEPTION); 100} 101 102void SplitElementCommand::doReapply() 103{ 104 if (!m_element1) 105 return; 106 107 executeApply(); 108} 109 110#ifndef NDEBUG 111void SplitElementCommand::getNodesInCommand(HashSet<Node*>& nodes) 112{ 113 addNodeAndDescendants(m_element1.get(), nodes); 114 addNodeAndDescendants(m_element2.get(), nodes); 115 addNodeAndDescendants(m_atChild.get(), nodes); 116} 117#endif 118 119} // namespace WebCore 120