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 FXJS_XFA_CFXJSE_RESOLVEPROCESSOR_H_
8 #define FXJS_XFA_CFXJSE_RESOLVEPROCESSOR_H_
9 
10 #include <memory>
11 #include <vector>
12 
13 #include "core/fxcrt/fx_string.h"
14 #include "fxjs/xfa/cfxjse_engine.h"
15 #include "xfa/fxfa/fxfa_basic.h"
16 #include "xfa/fxfa/parser/xfa_basic_data.h"
17 #include "xfa/fxfa/parser/xfa_resolvenode_rs.h"
18 
19 class CXFA_NodeHelper;
20 
21 class CFXJSE_ResolveNodeData {
22  public:
23   explicit CFXJSE_ResolveNodeData(CFXJSE_Engine* pSC);
24   ~CFXJSE_ResolveNodeData();
25 
26   UnownedPtr<CFXJSE_Engine> const m_pSC;
27   UnownedPtr<CXFA_Object> m_CurObject;
28   WideString m_wsName;
29   WideString m_wsCondition;
30   XFA_HashCode m_uHashName = XFA_HASHCODE_None;
31   int32_t m_nLevel = 0;
32   uint32_t m_dwStyles = XFA_RESOLVENODE_Children;
33   XFA_ResolveNode_RSType m_dwFlag = XFA_ResolveNode_RSType_Nodes;
34   std::vector<UnownedPtr<CXFA_Object>> m_Objects;
35   XFA_SCRIPTATTRIBUTEINFO m_ScriptAttribute;
36 };
37 
38 class CFXJSE_ResolveProcessor {
39  public:
40   CFXJSE_ResolveProcessor();
41   ~CFXJSE_ResolveProcessor();
42 
43   bool Resolve(CFXJSE_ResolveNodeData& rnd);
44   int32_t GetFilter(WideStringView wsExpression,
45                     int32_t nStart,
46                     CFXJSE_ResolveNodeData& rnd);
47   void SetIndexDataBind(WideString& wsNextCondition,
48                         int32_t& iIndex,
49                         int32_t iCount);
SetCurStart(int32_t start)50   void SetCurStart(int32_t start) { m_iCurStart = start; }
51 
GetNodeHelper()52   CXFA_NodeHelper* GetNodeHelper() { return m_pNodeHelper.get(); }
53 
54  private:
55   bool ResolveForAttributeRs(CXFA_Object* curNode,
56                              CFXJSE_ResolveNodeData& rnd,
57                              WideStringView strAttr);
58   bool ResolveAnyChild(CFXJSE_ResolveNodeData& rnd);
59   bool ResolveDollar(CFXJSE_ResolveNodeData& rnd);
60   bool ResolveExcalmatory(CFXJSE_ResolveNodeData& rnd);
61   bool ResolveNumberSign(CFXJSE_ResolveNodeData& rnd);
62   bool ResolveAsterisk(CFXJSE_ResolveNodeData& rnd);
63   bool ResolveNormal(CFXJSE_ResolveNodeData& rnd);
64   void SetStylesForChild(uint32_t dwParentStyles, CFXJSE_ResolveNodeData& rnd);
65 
66   void ConditionArray(size_t iCurIndex,
67                       WideString wsCondition,
68                       size_t iFoundCount,
69                       CFXJSE_ResolveNodeData* pRnd);
70   void FilterCondition(WideString wsCondition, CFXJSE_ResolveNodeData* pRnd);
71 
72   int32_t m_iCurStart = 0;
73   std::unique_ptr<CXFA_NodeHelper> const m_pNodeHelper;
74 };
75 
76 #endif  // FXJS_XFA_CFXJSE_RESOLVEPROCESSOR_H_
77