/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
 */

module com { module sun { module star { module util {

/** encapsulates access to the current office installation directory and
    office user data directory, provides functionality to create URLs
    containing relocatable (not absolute) references to the current office
    installation directory and user data directory and vice versa.

    <p>This functionality is useful when data containing references to the
    current office installation directory must be made persistent and re-read
    later. In many cases, storing the reference directly would destroy the
    relocatability of an office installation.

    @since OOo 2.0
 */
published interface XOfficeInstallationDirectories : com::sun::star::uno::XInterface
{
    /** returns the absolute URL containing the directory of the current office
        installation (for example "file:///opt/LibreOffice")

        @returns
        the absolute URL containing the directory of the current office
        installation.
     */
    string getOfficeInstallationDirectoryURL();

    /** returns the absolute URL containing the directory where the current
        office installation expects its user data (for example
        "file:///home/kso/.config/libreoffice/4")

        @returns
        the absolute URL containing the directory of the current office
        user data.
     */
    string getOfficeUserDataDirectoryURL();

    /** calculates a relocatable URL from the given URL.

        <p>If the given URL contains an absolute reference to the current office
        installation directory or office user data directory, this method will
        replace the absolute reference by an opaque placeholder string.
        <code>makeRelocatableURL</code> must be used in order to re-replace the
        placeholder by an absolute reference.

        @param URL
        The URL for that a relocatable URL is requested. In case the URL does
        not contain a reference to the current office installation or to the office
        user data directory, the input URL will be returned unchanged.

        @returns
        The relocatable URL.
     */
    string makeRelocatableURL( [in] string URL );

    /** the counterpart of <code>makeRelocatableURL</code>.

        <p>If the given URL contains a placeholder for an absolute reference to
        the current office installation directory or for the office user data
        directory, that was created using <code>makeRelocatableURL</code>, the
        respective placeholder will be replaced by an absolute reference to the
        current office installation directory or office user data directory.

        @param URL
        The URL for that an absolute URL is requested. In case the URL does
        not contain the opaque relocation placeholder used by
        <code>makeRelocatableURL</code>, the input URL will be returned
        unchanged.

        @returns
        The absolute URL.
     */
    string makeAbsoluteURL( [in] string URL );
};

}; }; }; };

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