win/idl/nsIUnicharOutputStream.idl

/* vim:set expandtab ts=4 sw=4 sts=4 cin: */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org unicode stream converter code.
 *
 * The Initial Developer of the Original Code is
 * Christian Biesinger <cbiesinger@web.de>.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

/**
 * An interface that allows writing unicode data.
 */
[scriptable, uuid(2d00b1bb-8b21-4a63-bcc6-7213f513ac2e)]
interface nsIUnicharOutputStream : nsISupports
{
    /**
     * Write a single character to the stream. When writing many characters,
     * prefer the string-taking write method.
     *
     * @retval true The character was written successfully
     * @retval false Not all bytes of the character could be written.
     */
    boolean write(in unsigned long aCount,
                  [const, array, size_is(aCount)] in PRUnichar c);

    /**
     * Write a string to the stream.
     *
     * @retval true The string was written successfully
     * @retval false Not all bytes of the string could be written.
     */
    boolean writeString(in AString str);

    /**
     * Flush the stream. This finishes the conversion and writes any bytes that
     * finish the current byte sequence.
     *
     * It does NOT flush the underlying stream.
     *
     * @see nsIUnicodeEncoder::Finish
     */
    void flush();

    /**
     * Close the stream and free associated resources. This also closes the
     * underlying stream.
     */
    void close();
};