RetroZilla/mailnews/mime/cthandlers/vcard/nsVCardFactory.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsIGenericFactory.h"

/* Include all of the interfaces our factory can generate components for */
#include "nsMimeContentTypeHandler.h"

/*
 * These functions are the public interface for this content type
 * handler and will be called in by the mime component.
 */
#define      VCARD_CONTENT_TYPE  "text/x-vcard"

////////////////////////////////////////////////////////////////////////
// Define the contructor function for the CID
//
// What this does is defines a function nsMimeContentTypeHandlerConstructor
// which we will specific in the nsModuleComponentInfo table. This function will
// be used by the generic factory to create an instance.
//
// NOTE: This creates an instance by using the default constructor
//
//NS_GENERIC_FACTORY_CONSTRUCTOR(nsMimeContentTypeHandler) 
extern "C" MimeObjectClass *
MIME_VCardCreateContentTypeHandlerClass(const char *content_type, 
                                        contentTypeHandlerInitStruct *initStruct);

static NS_IMETHODIMP
nsVCardMimeContentTypeHandlerConstructor(nsISupports *aOuter,
                                         REFNSIID aIID,
                                         void **aResult)
{
  nsresult rv;
  nsMimeContentTypeHandler *inst = nsnull;

  if (NULL == aResult) {
    rv = NS_ERROR_NULL_POINTER;
    return rv;
  }
  *aResult = NULL;
  if (NULL != aOuter) {
    rv = NS_ERROR_NO_AGGREGATION;
    return rv;
  }
  inst = new nsMimeContentTypeHandler(VCARD_CONTENT_TYPE, 
                                      &MIME_VCardCreateContentTypeHandlerClass);
  if (inst == NULL) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  NS_ADDREF(inst);
  rv = inst->QueryInterface(aIID,aResult);
  NS_RELEASE(inst);

  return rv;
}

////////////////////////////////////////////////////////////////////////
// Define a table of CIDs implemented by this module along with other
// information like the function to create an instance, contractid, and
// class name.
//
static const nsModuleComponentInfo components[] =
{
  { "MIME VCard Handler", NS_VCARD_CONTENT_TYPE_HANDLER_CID, "@mozilla.org/mimecth;1?type=text/x-vcard",
    nsVCardMimeContentTypeHandlerConstructor, }
};

////////////////////////////////////////////////////////////////////////
// Implement the NSGetModule() exported function for your module
// and the entire implementation of the module object.
//
NS_IMPL_NSGETMODULE(nsVCardModule, components)