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#include "nsISupports.idl"

[scriptable, uuid(6712FDD1-F978-11d4-A144-005004832142)]
interface nsIFontPackageHandler : nsISupports {
   /**
    * Set the font package handler for Gecko
    * @param aFontPackID a font package ID.
    * The id have the following naming convenation 
    *  name_space:name
    * we currently define one name space
    *    lang - a font package for a particular language group
    * and udnder the lang name space, we use the language code to identify
    * the package, below are the defined packages
    *   ja - Japanese font package ("lang:ja")
    *   ko - Korean font package ("lang:ko")
    *   zh-TW - Traditional Chinese font package ("lang:zh-TW")
    *   zh-CN - Simplified Chinese font package ("lang:zh-CN")
    * In the future, we may want to add
    *    ar - Arabic font packges ("lang:ar")
    *    he - Hebrew font packages ("lang:he")
    *    th - Thai font package ("lang:th")
    * other name space are reserved for now.
    * After the installation, the font package handler should call
    * nsIFontPackageService::FontPackageHandled and pass back the aFontPackID
    * 
    * This interface sould be implemented by the embedding application
    * In the other hand the nsIFontPackageProxy is internal to Gecko
    */
   void NeedFontPackage( in string aFontPackID );
};