/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * 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 code.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 2001 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s): Dan Mosedale <dmose@netscape.com> (Original Author)
 *
 */

#include "nsIAutoCompleteSession.idl"

// forward decls
//
interface nsILDAPURL;   
interface nsILDAPAutoCompFormatter;

/**
 * Extends nsIAutoCompleteSession to have various LDAP-specific parameters.
 * and output format.
 */
[scriptable, uuid(82b6a78e-1dd2-11b2-a3d0-876e20e7b350)]
interface nsILDAPAutoCompleteSession : nsIAutoCompleteSession {

    /**
     * A template used to construct the RFC 1960 LDAP search filter to use 
     * while autocompleting.  
     *
     * The authoritative documentation for the format in use can be found at 
     * at <http://docs.iplanet.com/docs/manuals/dirsdk/csdk41/html/filter.htm>.
     * The Linux/OpenLDAP man page for ldapfilter.conf(5) does a pretty decent
     * job as well, however.
     *
     * As of this writing, the "@mozilla.org/autocompleteSession;1?type=ldap" 
     * contractid happens to use a default value of 
     * (|(cn=%v1*%v2-*)(mail=%v1*%v2-*)(sn=%v1*%v2-*))
     *
     * @exception NS_ERROR_NULL_POINTER     NULL pointer passed to getter
     * @exception NS_ERROR_OUT_OF_MEMORY    Getter couldn't allocate string
     */
    attribute wstring filterTemplate;

    /**
     * At most this many nsIAutoCompleteItems will be returned.  This
     * is useful for keeping bandwidth usage over slow-speed
     * connections as well as ensuring that the number of choices
     * offered in the UI is manageble.
     *
     * 1-65535 are interpreted literally
     * 0 means "unlimited"
     * -1 uses the default limit for the LDAP connection in use
     * 
     * @exception NS_ERROR_NULL_POINTER     NULL pointer passed to getter
     * @exception NS_ERROR_ILLEGAL_VALUE    Out-of-range value passed to setter
     */
    attribute long maxHits;

    /**
     * Strings shorter than this will return |nsIAutoCompleteStatus::ignored|
     * rather than triggering a search.  This allows browsers to be
     * configured to not search on substrings so short that they
     * aren't indexed by the LDAP server (such searches can use
     * significantly more server resources and return a very large
     * number of entries).  cjkMinStringLength is used for CJK
     * languages, and minStringLength for everything else.  As of this
     * writing, the "@mozilla.org/autocompleteSession;1?type=ldap"
     * contractid uses defaults of two and zero, respectively.  This
     * avoids most unindexed searches with at least one widely-deployed
     * webserver, but allows CJK languages, where a single glyph can be an
     * an entire name to still get results.
     * 
     * @exception NS_ERROR_NULL_POINTER  NULL pointer passed to getter
     */
    attribute unsigned long minStringLength;
    attribute unsigned long cjkMinStringLength;

    /**
     * LDAP server to complete against, in ldap: URL format.  
     * May change to an nsILDAPServer once that infrastructure lands.
     *
     * @exception NS_ERROR_NULL_POINTER     NULL pointer passed to getter    
     */
    attribute nsILDAPURL serverURL;

    /** 
     * Callback used to format an individual LDAP message into an
     * nsIAutoCompleteItem.  
     */
    attribute nsILDAPAutoCompFormatter formatter;
};

.