nsIMIMEInfo in Firefox 3.6a1pre

 nsIMIMEInfo extends nsIHandlerInfo with a bunch of information specific to
 MIME content-types. There is a one-to-many relationship between MIME types
 and file extensions. This means that a MIMEInfo object may have multiple
 file extensions associated with it.  However, the reverse is not true.

 MIMEInfo objects are generally retrieved from the MIME Service
 @see nsIMIMEService

[scriptable, uuid(cd7083f8-5fe9-4248-bb09-0b0e2982fde8)]

Attributes

 The MIME type of this MIMEInfo.
 
 @return String representing the MIME type.
 
 @deprecated  use nsIHandlerInfo::type instead.

readonly attribute ACString MIMEType

 
 Returns a list of nsILocalHandlerApp objects containing
 handlers associated with this mimeinfo. Implemented per 
 platform using information in this object to generate the
 best list. Typically used for an "open with" style user 
 option.
 
 @return nsIArray of nsILocalHandlerApp

readonly attribute nsIArray possibleLocalHandlers

 Returns the first extension association in
 the internal set of extensions.

 @return The first extension.

attribute AUTF8String primaryExtension

Methods

 Append a given extension to the set of extensions

void appendExtension(in AUTF8String aExtension)

 Returns whether or not these two nsIMIMEInfos are logically
 equivalent.

 @returns PR_TRUE if the two are considered equal

boolean equals(in nsIMIMEInfo aMIMEInfo)

 Returns whether or not the given extension is
 associated with this MIME info.

 @return TRUE if the association exists.

boolean extensionExists(in AUTF8String aExtension)

 Gives you an array of file types associated with this type.

 @return Number of elements in the array.
 @return Array of extensions.

nsIUTF8StringEnumerator getFileExtensions()

 Launches the application with the specified file, in a way that
 depends on the value of preferredAction. preferredAction must be
 useHelperApp or useSystemDefault.

 @param aFile The file to launch this application with.

 @throw NS_ERROR_INVALID_ARG if action is not valid for this function.
 Other exceptions may be thrown.

void launchWithFile(in nsIFile aFile)

 Set File Extensions. Input is a comma delimited list of extensions.

void setFileExtensions(in AUTF8String aExtensions)