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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCRT_XML_CFX_XMLNODE_H_
#define CORE_FXCRT_XML_CFX_XMLNODE_H_
#include <memory>
#include "core/fxcrt/fx_stream.h"
#include "core/fxcrt/retain_ptr.h"
enum FX_XMLNODETYPE {
FX_XMLNODE_Unknown = 0,
FX_XMLNODE_Instruction,
FX_XMLNODE_Element,
FX_XMLNODE_Text,
FX_XMLNODE_CharData,
};
struct FX_XMLNODE {
int32_t iNodeNum;
FX_XMLNODETYPE eNodeType;
};
class CFX_XMLNode {
public:
CFX_XMLNode();
virtual ~CFX_XMLNode();
virtual FX_XMLNODETYPE GetType() const;
virtual std::unique_ptr<CFX_XMLNode> Clone();
virtual void Save(const RetainPtr<IFX_SeekableStream>& pXMLStream);
CFX_XMLNode* GetRoot();
CFX_XMLNode* GetParent() const { return parent_.Get(); }
CFX_XMLNode* GetFirstChild() const { return first_child_.get(); }
CFX_XMLNode* GetNextSibling() const { return next_sibling_.get(); }
void AppendChild(std::unique_ptr<CFX_XMLNode> pNode);
void InsertChildNode(std::unique_ptr<CFX_XMLNode> pNode, int32_t index);
void RemoveChildNode(CFX_XMLNode* pNode);
void DeleteChildren();
protected:
WideString EncodeEntities(const WideString& value);
private:
// A node owns it's first child and it owns it's next sibling. The rest
// are unowned pointers.
UnownedPtr<CFX_XMLNode> parent_;
UnownedPtr<CFX_XMLNode> last_child_;
UnownedPtr<CFX_XMLNode> prev_sibling_;
std::unique_ptr<CFX_XMLNode> first_child_;
std::unique_ptr<CFX_XMLNode> next_sibling_;
};
#endif // CORE_FXCRT_XML_CFX_XMLNODE_H_
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