widget/nsIFormatConverter.idl

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsISupports.idl"
   7 #include "nsIArray.idl"
   8
   9
  10 [scriptable, uuid(948A0023-E3A7-11d2-96CF-0060B0FB9956)]
  11 interface nsIFormatConverter : nsISupports
  12 {
  13   /**
  14     * Get the list of the "input" data flavors (mime types as nsISupportsCString),
  15     * in otherwords, the flavors that this converter can convert "from" (the
  16     * incoming data to the converter).
  17     */
  18   nsIArray getInputDataFlavors ( ) ;
  19
  20   /**
  21     * Get the list of the "output" data flavors (mime types as nsISupportsCString),
  22     * in otherwords, the flavors that this converter can convert "to" (the
  23     * outgoing data to the converter).
  24     *
  25     * @param  aDataFlavorList fills list with supported flavors
  26     */
  27   nsIArray getOutputDataFlavors ( ) ;
  28
  29   /**
  30     * Determines whether a conversion from one flavor to another is supported
  31     *
  32     * @param  aFromFormatConverter flavor to convert from
  33     * @param  aFromFormatConverter flavor to convert to
  34     */
  35   boolean canConvert ( in string aFromDataFlavor, in string aToDataFlavor ) ;
  36
  37   /**
  38     * Converts from one flavor to another.
  39     *
  40     * @param  aFromFormatConverter flavor to convert from
  41     * @param  aFromFormatConverter flavor to convert to (destination own the memory)
  42     * @returns returns NS_OK if it was converted
  43     */
  44   void convert ( in string aFromDataFlavor, in nsISupports aFromData, in unsigned long aDataLen,
  45                    in string aToDataFlavor, out nsISupports aToData, out unsigned long aDataToLen ) ;
  46
  47 };
  48
  49
  50 %{ C++
  51
  52 %}