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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 "core/fxcrt/fx_stream.h"
#include "core/fxcrt/retain_ptr.h"
enum FX_XMLNODETYPE {
FX_XMLNODE_Instruction = 0,
FX_XMLNODE_Element,
FX_XMLNODE_Text,
FX_XMLNODE_CharData,
};
class CFX_XMLDocument;
class CFX_XMLNode {
public:
CFX_XMLNode();
virtual ~CFX_XMLNode();
virtual FX_XMLNODETYPE GetType() const = 0;
virtual CFX_XMLNode* Clone(CFX_XMLDocument* doc) = 0;
virtual void Save(const RetainPtr<IFX_SeekableWriteStream>& pXMLStream) = 0;
CFX_XMLNode* GetRoot();
CFX_XMLNode* GetParent() const { return parent_; }
CFX_XMLNode* GetFirstChild() const { return first_child_; }
CFX_XMLNode* GetNextSibling() const { return next_sibling_; }
void AppendChild(CFX_XMLNode* pNode);
void InsertChildNode(CFX_XMLNode* pNode, int32_t index);
void RemoveChildNode(CFX_XMLNode* pNode);
void DeleteChildren();
CFX_XMLNode* GetLastChildForTesting() const { return last_child_; }
CFX_XMLNode* GetPrevSiblingForTesting() const { return prev_sibling_; }
protected:
WideString EncodeEntities(const WideString& value);
private:
// The nodes are owned by the XML document. We do not know what order the
// nodes will be destroyed in so they can not be UnownedPtrs.
CFX_XMLNode* parent_ = nullptr;
CFX_XMLNode* first_child_ = nullptr;
CFX_XMLNode* last_child_ = nullptr;
CFX_XMLNode* next_sibling_ = nullptr;
CFX_XMLNode* prev_sibling_ = nullptr;
};
#endif // CORE_FXCRT_XML_CFX_XMLNODE_H_
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