/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * 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 the Mozilla browser.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications, Inc.  Portions created by Netscape are
 * Copyright (C) 1999, Mozilla.  All Rights Reserved.
 * 
 * Contributor(s):
 *   Adam Lock <adamlock@netscape.com>
 */

#include "nsISupports.idl"

interface nsIURI;

/**
 * Interface implemented by objects capable of fixing up strings into URIs
 */
[scriptable, uuid(2EFD4A40-A5E1-11d4-9589-0020183BF181)]
interface nsIURIFixup : nsISupports
{
    /** No fixup flags. */
    const unsigned long FIXUP_FLAG_NONE = 0;

    /**
     * Allow the fixup to use a keyword lookup service to complete the URI.
     * The fixup object implementer should honour this flag and only perform
     * any lengthy keyword (or search) operation if it is set.
     */
    const unsigned long FIXUP_FLAG_ALLOW_KEYWORD_LOOKUP = 1;

    /**
     * Tell the fixup to make an alternate URI from the input URI, for example
     * to turn foo into www.foo.com.
     */
    const unsigned long FIXUP_FLAGS_MAKE_ALTERNATE_URI = 2;

    /**
     * Converts an internal URI (e.g. a wyciwyg URI) into one which we can
     * expose to the user, for example on the URL bar.
     *
     * @param  aURI       The URI to be converted
     * @return nsIURI     The converted, exposable URI
     * @throws NS_ERROR_MALFORMED_URI when the exposable portion of aURI is malformed
     * @throws NS_ERROR_UNKNOWN_PROTOCOL when we can't get a protocol handler service
     *         for the URI scheme.
     */
    nsIURI createExposableURI(in nsIURI aURI);

    /**
     * Converts the specified string into a URI, first attempting
     * to correct any errors in the syntax or other vagaries. Returns
     * a wellformed URI or nsnull if it can't.
     *
     * @param aURIText    Candidate URI.
     * @param aFixupFlags Flags that govern ways the URI may be fixed up.
     */
    nsIURI createFixupURI(in AString aURIText, in unsigned long aFixupFlags);
};