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#ifndef nsUnicodeToUEscape_h___
#define nsUnicodeToUEscape_h___

#include "nsUCvLatinSupport.h"
#include "nsISupports.h"

// XXX should we inherited from nsEncoderSupprt ? We don't want the buffer stuff there
class nsUnicodeToUEscape : public nsEncoderSupport 
{
public:

  /**
   * Class constructor.
   */
  nsUnicodeToUEscape() {};

  NS_IMETHOD FillInfo(PRUint32* aInfo)
  {
    memset(aInfo, 0xFF, (0x10000L >> 3));
    return NS_OK;
  }

  NS_IMETHOD Convert(const PRUnichar * aSrc, PRInt32 * aSrcLength, 
      char * aDest, PRInt32 * aDestLength);
  NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength) 
   {
      return NS_OK;
   }
  NS_IMETHOD Reset()
   {
      return NS_OK;
   }

protected:

  //--------------------------------------------------------------------
  // Subclassing of nsEncoderSupport class [declaration]

  NS_IMETHOD GetMaxLength(const PRUnichar * aSrc, PRInt32 aSrcLength, 
      PRInt32 * aDestLength)
  {
    *aDestLength = 6*aSrcLength;
    return NS_OK;
  };

  NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength, 
      char * aDest, PRInt32 * aDestLength) 
  {
      NS_ASSERTION(PR_FALSE, "should never call this");
      return NS_ERROR_NOT_IMPLEMENTED;
  };

};
nsresult NEW_UnicodeToUEscape(nsISupports **aResult);         

#endif /* nsUnicodeToUEscape_h___ */