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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 #include "xfa/fxfa/parser/xfa_doclayout.h" | |
8 #include "xfa/fxfa/parser/xfa_document.h" | |
9 #include "xfa/fxfa/parser/xfa_localemgr.h" | |
10 #include "xfa/fxfa/parser/xfa_object.h" | |
11 #include "xfa/fxfa/parser/xfa_parser.h" | |
12 #include "xfa/fxfa/parser/xfa_script.h" | |
13 #include "xfa/fxfa/parser/xfa_utils.h" | |
14 | |
15 class CXFA_TraverseStrategy_DDGroup { | |
16 public: | |
17 static inline CXFA_Node* GetFirstChild(CXFA_Node* pDDGroupNode) { | |
18 return pDDGroupNode->GetFirstChildByName(XFA_HASHCODE_Group); | |
19 } | |
20 static inline CXFA_Node* GetNextSibling(CXFA_Node* pDDGroupNode) { | |
21 return pDDGroupNode->GetNextSameNameSibling(XFA_HASHCODE_Group); | |
22 } | |
23 static inline CXFA_Node* GetParent(CXFA_Node* pDDGroupNode) { | |
24 return pDDGroupNode->GetNodeItem(XFA_NODEITEM_Parent); | |
25 } | |
26 }; | |
27 void XFA_DataDescription_UpdateDataRelation(CXFA_Node* pDataNode, | |
28 CXFA_Node* pDataDescriptionNode) { | |
29 ASSERT(pDataDescriptionNode); | |
30 for (CXFA_Node* pDataChild = pDataNode->GetNodeItem(XFA_NODEITEM_FirstChild); | |
31 pDataChild; | |
32 pDataChild = pDataChild->GetNodeItem(XFA_NODEITEM_NextSibling)) { | |
33 uint32_t dwNameHash = pDataChild->GetNameHash(); | |
34 if (!dwNameHash) | |
35 continue; | |
36 | |
37 CXFA_NodeIteratorTemplate<CXFA_Node, CXFA_TraverseStrategy_DDGroup> | |
38 sIterator(pDataDescriptionNode); | |
39 for (CXFA_Node* pDDGroupNode = sIterator.GetCurrent(); pDDGroupNode; | |
40 pDDGroupNode = sIterator.MoveToNext()) { | |
41 if (pDDGroupNode != pDataDescriptionNode) { | |
42 if (pDDGroupNode->GetElementType() != XFA_Element::DataGroup) | |
43 continue; | |
44 | |
45 CFX_WideString wsNamespace; | |
46 if (!pDDGroupNode->TryNamespace(wsNamespace) || | |
47 wsNamespace != FX_WSTRC(L"http://ns.adobe.com/data-description/")) { | |
48 continue; | |
49 } | |
50 } | |
51 CXFA_Node* pDDNode = pDDGroupNode->GetFirstChildByName(dwNameHash); | |
52 if (!pDDNode) | |
53 continue; | |
54 if (pDDNode->GetElementType() != pDataChild->GetElementType()) | |
55 break; | |
56 | |
57 pDataChild->SetDataDescriptionNode(pDDNode); | |
58 XFA_DataDescription_UpdateDataRelation(pDataChild, pDDNode); | |
59 break; | |
60 } | |
61 } | |
62 } | |
63 CXFA_Node* XFA_DataDescription_MaybeCreateDataNode( | |
64 CXFA_Document* pDocument, | |
65 CXFA_Node* pDataParent, | |
66 XFA_Element eNodeType, | |
67 const CFX_WideString& wsName) { | |
68 if (!pDataParent) { | |
69 return nullptr; | |
70 } | |
71 CXFA_Node* pParentDDNode = pDataParent->GetDataDescriptionNode(); | |
72 if (!pParentDDNode) { | |
73 CXFA_Node* pDataNode = | |
74 pDocument->CreateNode(XFA_XDPPACKET_Datasets, eNodeType); | |
75 ASSERT(pDataNode); | |
76 pDataNode->SetCData(XFA_ATTRIBUTE_Name, wsName); | |
77 pDataNode->CreateXMLMappingNode(); | |
78 pDataParent->InsertChild(pDataNode); | |
79 pDataNode->SetFlag(XFA_NodeFlag_Initialized, false); | |
80 return pDataNode; | |
81 } else { | |
82 CXFA_NodeIteratorTemplate<CXFA_Node, CXFA_TraverseStrategy_DDGroup> | |
83 sIterator(pParentDDNode); | |
84 for (CXFA_Node* pDDGroupNode = sIterator.GetCurrent(); pDDGroupNode; | |
85 pDDGroupNode = sIterator.MoveToNext()) { | |
86 if (pDDGroupNode != pParentDDNode) { | |
87 if (pDDGroupNode->GetElementType() != XFA_Element::DataGroup) { | |
88 continue; | |
89 } | |
90 CFX_WideString wsNamespace; | |
91 if (!pDDGroupNode->TryNamespace(wsNamespace) || | |
92 wsNamespace != FX_WSTRC(L"http://ns.adobe.com/data-description/")) { | |
93 continue; | |
94 } | |
95 } | |
96 CXFA_Node* pDDNode = | |
97 pDDGroupNode->GetFirstChildByName(wsName.AsStringC()); | |
98 if (!pDDNode) { | |
99 continue; | |
100 } | |
101 if (pDDNode->GetElementType() != eNodeType) { | |
102 break; | |
103 } | |
104 CXFA_Node* pDataNode = | |
105 pDocument->CreateNode(XFA_XDPPACKET_Datasets, eNodeType); | |
106 ASSERT(pDataNode); | |
107 pDataNode->SetCData(XFA_ATTRIBUTE_Name, wsName); | |
108 pDataNode->CreateXMLMappingNode(); | |
109 if (eNodeType == XFA_Element::DataValue && | |
110 pDDNode->GetEnum(XFA_ATTRIBUTE_Contains) == | |
111 XFA_ATTRIBUTEENUM_MetaData) { | |
112 pDataNode->SetEnum(XFA_ATTRIBUTE_Contains, XFA_ATTRIBUTEENUM_MetaData); | |
113 } | |
114 pDataParent->InsertChild(pDataNode); | |
115 pDataNode->SetDataDescriptionNode(pDDNode); | |
116 pDataNode->SetFlag(XFA_NodeFlag_Initialized, false); | |
117 return pDataNode; | |
118 } | |
119 return nullptr; | |
120 } | |
121 } | |
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