/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DOMPatchSupport_h
#define DOMPatchSupport_h
#include "wtf/HashMap.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class ContainerNode;
class DOMEditor;
class Document;
class ExceptionState;
class Node;
class DOMPatchSupport FINAL {
WTF_MAKE_NONCOPYABLE(DOMPatchSupport);
public:
static void patchDocument(Document&, const String& markup);
DOMPatchSupport(DOMEditor*, Document&);
void patchDocument(const String& markup);
Node* patchNode(Node*, const String& markup, ExceptionState&);
private:
struct Digest;
typedef Vector<pair<Digest*, size_t> > ResultMap;
typedef HashMap<String, Digest*> UnusedNodesMap;
bool innerPatchNode(Digest* oldNode, Digest* newNode, ExceptionState&);
std::pair<ResultMap, ResultMap> diff(const Vector<OwnPtr<Digest> >& oldChildren, const Vector<OwnPtr<Digest> >& newChildren);
bool innerPatchChildren(ContainerNode*, const Vector<OwnPtr<Digest> >& oldChildren, const Vector<OwnPtr<Digest> >& newChildren, ExceptionState&);
PassOwnPtr<Digest> createDigest(Node*, UnusedNodesMap*);
bool insertBeforeAndMarkAsUsed(ContainerNode*, Digest*, Node* anchor, ExceptionState&);
bool removeChildAndMoveToNew(Digest*, ExceptionState&);
void markNodeAsUsed(Digest*);
#ifdef DEBUG_DOM_PATCH_SUPPORT
void dumpMap(const ResultMap&, const String& name);
#endif
DOMEditor* m_domEditor;
Document& m_document;
UnusedNodesMap m_unusedNodesMap;
};
} // namespace WebCore
#endif // !defined(DOMPatchSupport_h)