1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef XFA_FXFA_PARSER_XFA_UTILS_H_ 8 #define XFA_FXFA_PARSER_XFA_UTILS_H_ 9 10 #include "xfa/fde/xml/fde_xml.h" 11 #include "xfa/fgas/crt/fgas_stream.h" 12 #include "xfa/fgas/crt/fgas_utils.h" 13 #include "xfa/fxfa/fxfa_basic.h" 14 15 class CFDE_XMLElement; 16 class CFDE_XMLNode; 17 class CXFA_LocaleValue; 18 class CXFA_Node; 19 class CXFA_WidgetData; 20 21 bool XFA_FDEExtension_ResolveNamespaceQualifier( 22 CFDE_XMLElement* pNode, 23 const CFX_WideStringC& wsQualifier, 24 CFX_WideString& wsNamespaceURI); 25 26 template <class NodeType, class TraverseStrategy> 27 class CXFA_NodeIteratorTemplate { 28 public: 29 explicit CXFA_NodeIteratorTemplate(NodeType* pRootNode = nullptr) 30 : m_pRoot(pRootNode), m_NodeStack(100) { 31 if (pRootNode) { 32 m_NodeStack.Push(pRootNode); 33 } 34 } 35 bool Init(NodeType* pRootNode) { 36 if (!pRootNode) { 37 return false; 38 } 39 m_pRoot = pRootNode; 40 m_NodeStack.RemoveAll(false); 41 m_NodeStack.Push(pRootNode); 42 return true; 43 } 44 void Clear() { m_NodeStack.RemoveAll(false); } 45 void Reset() { 46 Clear(); 47 if (m_pRoot) { 48 m_NodeStack.Push(m_pRoot); 49 } 50 } 51 bool SetCurrent(NodeType* pCurNode) { 52 m_NodeStack.RemoveAll(false); 53 if (pCurNode) { 54 CFX_StackTemplate<NodeType*> revStack(100); 55 NodeType* pNode; 56 for (pNode = pCurNode; pNode && pNode != m_pRoot; 57 pNode = TraverseStrategy::GetParent(pNode)) { 58 revStack.Push(pNode); 59 } 60 if (!pNode) { 61 return false; 62 } 63 revStack.Push(m_pRoot); 64 while (revStack.GetSize()) { 65 m_NodeStack.Push(*revStack.GetTopElement()); 66 revStack.Pop(); 67 } 68 } 69 return true; 70 } 71 NodeType* GetCurrent() const { 72 return m_NodeStack.GetSize() ? *m_NodeStack.GetTopElement() : nullptr; 73 } 74 NodeType* GetRoot() const { return m_pRoot; } 75 NodeType* MoveToPrev() { 76 int32_t nStackLength = m_NodeStack.GetSize(); 77 if (nStackLength == 1) { 78 return nullptr; 79 } else if (nStackLength > 1) { 80 NodeType* pCurItem = *m_NodeStack.GetTopElement(); 81 m_NodeStack.Pop(); 82 NodeType* pParentItem = *m_NodeStack.GetTopElement(); 83 NodeType* pParentFirstChildItem = 84 TraverseStrategy::GetFirstChild(pParentItem); 85 if (pCurItem == pParentFirstChildItem) { 86 return pParentItem; 87 } 88 NodeType *pPrevItem = pParentFirstChildItem, *pPrevItemNext = nullptr; 89 for (; pPrevItem; pPrevItem = pPrevItemNext) { 90 pPrevItemNext = TraverseStrategy::GetNextSibling(pPrevItem); 91 if (!pPrevItemNext || pPrevItemNext == pCurItem) { 92 break; 93 } 94 } 95 m_NodeStack.Push(pPrevItem); 96 } else { 97 m_NodeStack.RemoveAll(false); 98 if (m_pRoot) { 99 m_NodeStack.Push(m_pRoot); 100 } 101 } 102 if (m_NodeStack.GetSize() > 0) { 103 NodeType* pChildItem = *m_NodeStack.GetTopElement(); 104 while ((pChildItem = TraverseStrategy::GetFirstChild(pChildItem)) != 105 nullptr) { 106 while (NodeType* pNextItem = 107 TraverseStrategy::GetNextSibling(pChildItem)) { 108 pChildItem = pNextItem; 109 } 110 m_NodeStack.Push(pChildItem); 111 } 112 return *m_NodeStack.GetTopElement(); 113 } 114 return nullptr; 115 } 116 NodeType* MoveToNext() { 117 NodeType** ppNode = nullptr; 118 NodeType* pCurrent = GetCurrent(); 119 while (m_NodeStack.GetSize() > 0) { 120 while ((ppNode = m_NodeStack.GetTopElement()) != nullptr) { 121 if (pCurrent != *ppNode) { 122 return *ppNode; 123 } 124 NodeType* pChild = TraverseStrategy::GetFirstChild(*ppNode); 125 if (!pChild) { 126 break; 127 } 128 m_NodeStack.Push(pChild); 129 } 130 while ((ppNode = m_NodeStack.GetTopElement()) != nullptr) { 131 NodeType* pNext = TraverseStrategy::GetNextSibling(*ppNode); 132 m_NodeStack.Pop(); 133 if (m_NodeStack.GetSize() == 0) { 134 break; 135 } 136 if (pNext) { 137 m_NodeStack.Push(pNext); 138 break; 139 } 140 } 141 } 142 return nullptr; 143 } 144 NodeType* SkipChildrenAndMoveToNext() { 145 NodeType** ppNode = nullptr; 146 while ((ppNode = m_NodeStack.GetTopElement()) != nullptr) { 147 NodeType* pNext = TraverseStrategy::GetNextSibling(*ppNode); 148 m_NodeStack.Pop(); 149 if (m_NodeStack.GetSize() == 0) { 150 break; 151 } 152 if (pNext) { 153 m_NodeStack.Push(pNext); 154 break; 155 } 156 } 157 return GetCurrent(); 158 } 159 160 protected: 161 NodeType* m_pRoot; 162 CFX_StackTemplate<NodeType*> m_NodeStack; 163 }; 164 165 CXFA_LocaleValue XFA_GetLocaleValue(CXFA_WidgetData* pWidgetData); 166 FX_DOUBLE XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal); 167 int32_t XFA_MapRotation(int32_t nRotation); 168 169 bool XFA_RecognizeRichText(CFDE_XMLElement* pRichTextXMLNode); 170 void XFA_GetPlainTextFromRichText(CFDE_XMLNode* pXMLNode, 171 CFX_WideString& wsPlainText); 172 bool XFA_FieldIsMultiListBox(CXFA_Node* pFieldNode); 173 174 void XFA_DataExporter_DealWithDataGroupNode(CXFA_Node* pDataNode); 175 void XFA_DataExporter_RegenerateFormFile( 176 CXFA_Node* pNode, 177 const CFX_RetainPtr<IFGAS_Stream>& pStream, 178 const FX_CHAR* pChecksum = nullptr, 179 bool bSaveXML = false); 180 181 const XFA_NOTSUREATTRIBUTE* XFA_GetNotsureAttribute( 182 XFA_Element eElement, 183 XFA_ATTRIBUTE eAttribute, 184 XFA_ATTRIBUTETYPE eType = XFA_ATTRIBUTETYPE_NOTSURE); 185 186 const XFA_SCRIPTATTRIBUTEINFO* XFA_GetScriptAttributeByName( 187 XFA_Element eElement, 188 const CFX_WideStringC& wsAttributeName); 189 190 const XFA_PROPERTY* XFA_GetPropertyOfElement(XFA_Element eElement, 191 XFA_Element eProperty, 192 uint32_t dwPacket); 193 const XFA_PROPERTY* XFA_GetElementProperties(XFA_Element eElement, 194 int32_t& iCount); 195 const uint8_t* XFA_GetElementAttributes(XFA_Element eElement, int32_t& iCount); 196 const XFA_ELEMENTINFO* XFA_GetElementByID(XFA_Element eName); 197 XFA_Element XFA_GetElementTypeForName(const CFX_WideStringC& wsName); 198 CXFA_Measurement XFA_GetAttributeDefaultValue_Measure(XFA_Element eElement, 199 XFA_ATTRIBUTE eAttribute, 200 uint32_t dwPacket); 201 bool XFA_GetAttributeDefaultValue(void*& pValue, 202 XFA_Element eElement, 203 XFA_ATTRIBUTE eAttribute, 204 XFA_ATTRIBUTETYPE eType, 205 uint32_t dwPacket); 206 const XFA_ATTRIBUTEINFO* XFA_GetAttributeByName(const CFX_WideStringC& wsName); 207 const XFA_ATTRIBUTEINFO* XFA_GetAttributeByID(XFA_ATTRIBUTE eName); 208 const XFA_ATTRIBUTEENUMINFO* XFA_GetAttributeEnumByName( 209 const CFX_WideStringC& wsName); 210 const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PACKET ePacket); 211 const XFA_PACKETINFO* XFA_GetPacketByID(uint32_t dwPacket); 212 213 #endif // XFA_FXFA_PARSER_XFA_UTILS_H_ 214
