226 lines
8 KiB
C
226 lines
8 KiB
C
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//
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// MODULE: HTMLFrag.h
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//
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// PURPOSE: declaration of the CHTMLFragments and CHTMLFragmentsTS classes.
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// This is how CInfer packages up fragments of HTML to be rendered in accord
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// with a template.
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//
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// PROJECT: Generic Troubleshooter DLL for Microsoft AnswerPoint
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//
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// COMPANY: Saltmine Creative, Inc. (206)-284-7511 support@saltmine.com
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//
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// AUTHOR: Joe Mabel
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//
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// ORIGINAL DATE: 8-27-1998
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//
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// NOTES:
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//
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// Version Date By Comments
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//--------------------------------------------------------------------
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// V3.0 8-27-98 JM Original
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef __HTMLFRAG_H_
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#define __HTMLFRAG_H_
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#include <vector>
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using namespace std;
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// JSM V3.2
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#include <map>
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using namespace std;
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#include "apgtsstr.h"
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// Predefined variable names
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// They belong to DISPLAY command
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#define VAR_PROBLEM_ASK _T("ProblemAsk")
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#define VAR_RECOMMENDATIONS _T("Recommendations")
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#define VAR_STATES _T("States")
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#define VAR_QUESTIONS _T("Questions")
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#define VAR_SUCCESS _T("Success")
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#define VAR_STARTFORM _T("StartForm")
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// V3.2 Additions.
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namespace
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{
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const CString kstrCond_NumericCompare= _T("NumericCompare");
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}
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struct FragmentID
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{
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FragmentID() : Index(-1) {};
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FragmentID(const CString & v, int i) : VarName(v), Index(i) {};
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CString VarName; // must be a known, predefined variable name
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int Index; // index into array associated with this variable name
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// OR -1 for not relevant
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bool operator < (const FragmentID & fid) const
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{ return (VarName < fid.VarName || Index < fid.Index); };
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bool operator == (const FragmentID & fid) const
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{ return (VarName == fid.VarName || Index == fid.Index); };
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};
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class CHTMLValue
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{
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CString m_strValName;
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CString m_strValValue;
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public:
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CHTMLValue() {}
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CHTMLValue(const CString& name) : m_strValName(name) {}
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CHTMLValue(const CString& name, const CString& value) : m_strValName(name), m_strValValue(value) {}
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virtual ~CHTMLValue() {}
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public:
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bool operator == (const CHTMLValue& sib);
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void SetName(const CString& name) {m_strValName = name;}
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CString GetName() {return m_strValName;}
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bool SetValue(const CString& value);
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bool GetNumeric(long&);
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bool GetString(CString&);
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bool GetBoolean(bool&);
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bool IsValid() {return IsNumeric() || IsString() || IsBoolean();}
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bool IsNumeric();
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bool IsString();
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bool IsBoolean();
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};
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// vectors definition
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typedef vector<FragmentID> FragmentIDVector;
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typedef vector<CHTMLValue> HTMLValueVector;
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// Template should see only a const object of this class
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class CHTMLFragments
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{
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HTMLValueVector m_HTMLValueVector;
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public:
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enum FragCommand { eNotOfInterest, eResource };
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public:
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CHTMLFragments() {};
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virtual ~CHTMLFragments()=0 {};
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// pure virtuals
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virtual int GetCount(const FragmentIDVector & fidvec) const =0;
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virtual CString GetText(const FragmentIDVector & fidvec, const FragCommand fragCmd= eNotOfInterest ) =0;
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virtual bool IsValidSeqOfVars(const FragmentIDVector & arrParents, const FragmentIDVector & arrChildren) const =0 ;
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// value handling
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virtual bool SetValue(const CString& assignment_expression);
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virtual CHTMLValue* GetValue(const CString& value_name);
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// JSM V3.2 needed by mechanism which replaces <!GTS property "netprop">
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// w/ the corresponding BNTS network property
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virtual CString GetNetProp(const CString & strNetPropName) = 0;
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// V3.2 enhancement for the Start Over button.
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virtual void SetStartOverLink( const CString & str ) {};
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virtual CString GetStartOverLink() {return _T("");}
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};
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// Implementation specific to the predefined variables above
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class CHTMLFragmentsTS : public CHTMLFragments
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{
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#ifdef __DEBUG_CUSTOM
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protected:
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#else
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private:
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#endif
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const bool m_bIncludesHistoryTable;
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const bool m_bIncludesHiddenHistory;
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CString m_strStartForm; // The fixed, initial part of the HTML form on every
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// page that has a form. (The FORM tag + the topic
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// name in a hidden field of that form)
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CString m_strProblem; // problem name (for history table)
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vector<CString> m_vstrVisitedNodes; // name of each visited node (for history table)
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#pragma warning(disable:4786)
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vector< vector<CString> > m_vvstrStatesOfVisitedNodes; // text corresponding
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// to each state of each visited node (for history table).
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// This includes radio button.
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CString m_strCurrentNode; // full text for current node, sometimes includes
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// hidden history
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CString m_strCurrentNodeSimple; // text for current node, always excludes hidden history
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CString m_strHiddenHistory; // If there is to be no history table, this encodes
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// the history in hidden fields (for an HTML form)
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CString m_strNil;
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CString m_strYes; // constant "Yes" for m_bSuccess == true
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bool m_bSuccess; // true only is current node is BYE (success) node.
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const CString m_strScriptPath; // path to the resource directory, used for server side logic.
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CString m_strStartOverLink; // V3.2 - for Online TS, contains the text for the start over
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// link (which is disguised as a button). Unlike other
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// properties, this is set by APGTSContext and gotten
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// by CInfer, not set by CInfer and gotten by CAPGTSHTIReader
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// V3.2 map BNTS network property name to net property (value)
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// allows us to convert <!GTS property "netprop"> when reading the HTI file
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map<CString,CString> m_mapstrNetProps;
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private:
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CHTMLFragmentsTS(); // Do not instantiate
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public:
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CHTMLFragmentsTS( const CString & strScriptPath, bool bIncludesHistoryTable );
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~CHTMLFragmentsTS();
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// inherited methods
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int GetCount(const FragmentIDVector & fidvec) const;
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CString GetText( const FragmentIDVector & fidvec, const FragCommand fragCmd= eNotOfInterest );
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virtual bool IsValidSeqOfVars(const FragmentIDVector & arrParents, const FragmentIDVector & arrChildren) const;
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void SetStartOverLink( const CString & str ); // V3.2 enhancement for the Start Over button.
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CString GetStartOverLink(); // V3.2 enhancement for the Start Over button.
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// methods specific to this class
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void SetStartForm(const CString & str);
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void SetProblemText(const CString & str);
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void SetCurrentNodeText(const CString & str);
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void SetHiddenHistoryText(const CString & str);
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void SetSuccessBool(bool bSuccess);
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CString GetCurrentNodeText();
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int PushBackVisitedNodeText(const CString & str);
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int PushBackStateText(UINT iVisitedNode, const CString & str);
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bool IncludesHistoryTable() const;
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bool IncludesHiddenHistory() const;
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// Functions which parse and evaluate numeric and string conditionals.
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bool NumericConditionEvaluatesToTrue( const CString & str );
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bool StringConditionEvaluatesToTrue( const CString & str );
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CString RemoveOuterParenthesis( const CString & str );
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bool RetNumericOperands( const CString & str, const CString & strOperator,
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long &lLeftOperand, long &lRightOperand );
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bool RetStringOperands( const CString & str, const CString & strOperator,
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CString & strLeftOperand, CString & strRightOperand );
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int CleanStringOperand( CString& strOperand );
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// JSM V3.2 these functions used by the mechanism which replaces
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// <!GTS property "netprop"> w/ the corresponding BNTS network property
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//
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// CAPGTSHTIReader finds the names of the network properties and passes
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// them in via AddNetPropName
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// CInfer later gets the network property names, calls the BNTS
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// to find out the network property values, and passes the values to HTMLFragmentsTS
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// Later, CAPGTSHTIReader queries HTMLFragmentsTS for network property values
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// during the parsing process.
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//
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// add the name of a network property to the internal list
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void AddNetPropName(const CString & strNetPropName);
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// returns the network property, requested by name. (returns null if not avail.)
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CString GetNetProp(const CString & strNetPropName);
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// set the value of the network property identified by strNetPropName
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BOOL SetNetProp(CString strNetPropName, CString strNetProp);
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// iterate (by name) thru the list of net props
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BOOL IterateNetProp(CString & strNameIterator);
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// end JSM V3.2
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private:
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void RebuildCurrentNodeText();
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};
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#endif // __HTMLFRAG_H_
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