This interface is used to display a confirmatino dialog before
 launching a "helper app" to handle content not handled by
 Mozilla.

 Usage:  Clients (of which there is one: the nsIExternalHelperAppService
 implementation in mozilla/uriloader/exthandler) create an instance of
 this interface (using the contract ID) and then call the show() method.

 The dialog is shown non-modally.  The implementation of the dialog
 will access methods of the nsIHelperAppLauncher passed in to show()
 in order to cause a "save to disk" or "open using" action.
[scriptable, uuid(64355793-988d-40a5-ba8e-fcde78cac631)]
interface nsIHelperAppLauncherDialog : nsISupports

Constants

 This request is passed to the helper app dialog because Gecko can not
 handle content of this type.
const unsigned long REASON_CANTHANDLE = 0 
 The server requested external handling.
const unsigned long REASON_SERVERREQUEST = 1 
 Gecko detected that the type sent by the server (e.g. text/plain) does
 not match the actual type.
const unsigned long REASON_TYPESNIFFED = 2

Methods


          

  
    
    nsILocalFile
  promptForSaveToFile(in nsIHelperAppLauncher aLauncher, in nsISupports aWindowContext, in wstring aDefaultFile, in wstring aSuggestedFileExtension)

        

              

          

          

  
    
    void
  show(in nsIHelperAppLauncher aLauncher, in nsISupports aContext, in unsigned long aReason)