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       ScXMLInvokeElt -

       implements the <invoke> SCXML element.


       #include <Inventor/scxml/ScXMLInvokeElt.h>

       Inherits ScXMLExecutableElt.

   Public Member Functions
       virtual SoType getTypeId (void) const
           Returns the type identification of an object derived from a class inheriting SoBase.
           This is used for run-time type checking and 'downward' casting.
       virtual void setTargetTypeAttribute (const char *id)
       const char * getTargetTypeAttribute (void) const
       virtual void setSrcAttribute (const char *id)
       const char * getSrcAttribute (void) const
       virtual void setSrcExprAttribute (const char *id)
       const char * getSrcExprAttribute (void) const
       virtual SbBool handleXMLAttributes (void)
       virtual void copyContents (const ScXMLElt *rhs)
       virtual const ScXMLElt * search (const char *attrname, const char *attrvalue) const
       virtual int getNumParams (void) const
       virtual ScXMLParamElt * getParam (int idx) const
       virtual void addParam (ScXMLParamElt *param)
       virtual void removeParam (ScXMLParamElt *param)
       virtual void clearAllParams (void)
       virtual void setFinalize (ScXMLFinalizeElt *finalize)
       virtual ScXMLFinalizeElt * getFinalize (void) const
       virtual void setContent (ScXMLContentElt *content)
       virtual ScXMLContentElt * getContent (void) const

   Static Public Member Functions
       static ScXMLEltReader * getElementReader (void)
       static SoType getClassTypeId (void)
       static void * createInstance (void)
       static void initClass (void)
       static void cleanClass (void)

   Protected Attributes
       char * targettype
       char * src
       char * srcexpr

   Additional Inherited Members

Detailed Description

       implements the <invoke> SCXML element.

       Important note for SCXML-users on the Coin 3.0 implementation of the <invoke> element: The
       first SCXML-implementation of Coin was based on a draft from february 2007, and the
       interpretation done of the <invoke> element was wrong in certain aspects that has become
       clear in later revisions of the standards draft. The SCXML-implementation was for various
       reasons rushed, with a timeframe where no scripting capabilities would be possible to get
       ready, and the navigation system code (the primary purpose of implementing the SCXML
       system) had to be plugged in somewhere. This was at that time done on the <invoke>

       For the current implementation, the navigation code has been moved away from being
       <invoke>-based to being a service communicated to through the <send> element to be more
       standards-conformant. And to make the situation even more ridicilous, that approach will
       likely be deprecated in the not-too-distant future, to be replaced by a pure, inlined,
       scripting-based approach. Those two approaches should however be fully possible to keep
       alive side-by-side for a while, so following the current lead in implementing your own
       custom navigation systems should be a lot safer than doing it over the misguided

           Coin 3.0

Member Function Documentation

   SoType ScXMLInvokeElt::getTypeId (void) const [virtual]
       Returns the type identification of an object derived from a class inheriting SoBase. This
       is used for run-time type checking and 'downward' casting.

       See Also:
           SoBase::getTypeId() const

       Implements ScXMLExecutableElt.

   SbBool ScXMLInvokeElt::handleXMLAttributes (void) [virtual]
       This method is called when the file reader has set all the XML attributes on the object,
       and wants the object to handle them and report if the values were ok or if a read error
       should be produced.

           TRUE if the attributes are ok, and FALSE on error.

       This base class implementation does nothing and just returns TRUE.

       Reimplemented from ScXMLElt.

   const ScXMLElt * ScXMLInvokeElt::search (const char *attrname, const char *attrvalue) const
       This method searches the SCXML structure for an element with the given attributevalue for
       the given attribute.

       Returns NULL if nothing was found.

       This function needs to be reimplemented to traverse child elements.

       Reimplemented from ScXMLElt.


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