| // 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, |
| }; |
| |
| class CFX_XMLNode { |
| public: |
| CFX_XMLNode(); |
| virtual ~CFX_XMLNode(); |
| |
| virtual FX_XMLNODETYPE GetType() const = 0; |
| virtual std::unique_ptr<CFX_XMLNode> Clone() = 0; |
| virtual void Save(const RetainPtr<IFX_SeekableWriteStream>& pXMLStream) = 0; |
| |
| 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 its first child and it owns its 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_ |