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nsMimeContentTypeHandler.h
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00037  
00038 /*
00039  * This interface is implemented by content type handlers that will be
00040  * called upon by libmime to process various attachments types. The primary
00041  * purpose of these handlers will be to represent the attached data in a
00042  * viewable HTML format that is useful for the user
00043  *
00044  * Note: These will all register by their content type prefixed by the
00045  *       following:  mimecth:text/vcard
00046  * 
00047  *       libmime will then use the XPCOM Component Manager to 
00048  *       locate the appropriate Content Type handler
00049  */
00050 #ifndef nsMimeContentTypeHandler_h_
00051 #define nsMimeContentTypeHandler_h_
00052 
00053 #include "prtypes.h"
00054 #include "nsIMimeContentTypeHandler.h"
00055 
00056 typedef MimeObjectClass  *
00057 (* PR_CALLBACK MCTHCreateCTHClass)(const char *content_type, 
00058                                    contentTypeHandlerInitStruct *initStruct);
00059 
00060 class nsMimeContentTypeHandler : public nsIMimeContentTypeHandler {
00061 public: 
00062     nsMimeContentTypeHandler (const char *aMimeType, 
00063                               MCTHCreateCTHClass callback);
00064     virtual       ~nsMimeContentTypeHandler (void);
00065 
00066     /* this macro defines QueryInterface, AddRef and Release for this class */
00067     NS_DECL_ISUPPORTS 
00068 
00069     NS_IMETHOD    GetContentType(char **contentType);
00070 
00071     NS_IMETHOD    CreateContentTypeHandlerClass(const char *content_type, 
00072                                                 contentTypeHandlerInitStruct *initStruct, 
00073                                                 MimeObjectClass **objClass);
00074  private:
00075     char *mimeType;
00076     MCTHCreateCTHClass realCreateContentTypeHandlerClass;
00077 }; 
00078 
00079 #endif /* nsMimeContentTypeHandler_h_ */