1/* 2 * Copyright (C) 2012 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef DOMPatchSupport_h 32#define DOMPatchSupport_h 33 34#include "ExceptionCode.h" 35 36#include <wtf/HashMap.h> 37#include <wtf/Vector.h> 38#include <wtf/text/WTFString.h> 39 40namespace WebCore { 41 42class ContainerNode; 43class DOMEditor; 44class Document; 45class Node; 46 47#if ENABLE(INSPECTOR) 48 49class DOMPatchSupport { 50 WTF_MAKE_NONCOPYABLE(DOMPatchSupport); 51public: 52 static void patchDocument(Document*, const String& markup); 53 54 DOMPatchSupport(DOMEditor*, Document*); 55 virtual ~DOMPatchSupport(); 56 57 void patchDocument(const String& markup); 58 Node* patchNode(Node&, const String& markup, ExceptionCode&); 59 60private: 61 struct Digest; 62 typedef Vector<std::pair<Digest*, size_t>> ResultMap; 63 typedef HashMap<String, Digest*> UnusedNodesMap; 64 65 bool innerPatchNode(Digest* oldNode, Digest* newNode, ExceptionCode&); 66 std::pair<ResultMap, ResultMap> diff(const Vector<std::unique_ptr<Digest>>& oldChildren, const Vector<std::unique_ptr<Digest>>& newChildren); 67 bool innerPatchChildren(ContainerNode*, const Vector<std::unique_ptr<Digest>>& oldChildren, const Vector<std::unique_ptr<Digest>>& newChildren, ExceptionCode&); 68 std::unique_ptr<Digest> createDigest(Node*, UnusedNodesMap*); 69 bool insertBeforeAndMarkAsUsed(ContainerNode*, Digest*, Node* anchor, ExceptionCode&); 70 bool removeChildAndMoveToNew(Digest*, ExceptionCode&); 71 void markNodeAsUsed(Digest*); 72#ifdef DEBUG_DOM_PATCH_SUPPORT 73 void dumpMap(const ResultMap&, const String& name); 74#endif 75 76 DOMEditor* m_domEditor; 77 Document* m_document; 78 79 UnusedNodesMap m_unusedNodesMap; 80}; 81 82#endif // ENABLE(INSPECTOR) 83 84} // namespace WebCore 85 86#endif // !defined(DOMPatchSupport_h) 87