// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define, window, setTimeout */

/* This is a Converse.js plugin which add support for multi-user chat rooms, as
 * specified in XEP-0045 Multi-user chat.
 */
(function (root, factory) {
    define("converse-muc", [
            "converse-core",
            "converse-api",
            "typeahead",
            // TODO remove next two dependencies
            "converse-chatview",
            "converse-controlbox"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe,
        $iq = converse_api.env.$iq,
        $build = converse_api.env.$build,
        $msg = converse_api.env.$msg,
        $pres = converse_api.env.$pres,
        b64_sha1 = converse_api.env.b64_sha1,
        utils = converse_api.env.utils;
    // Other necessary globals
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._,
        moment = converse_api.env.moment;

    // For translations
    var __ = utils.__.bind(converse);
    var ___ = utils.___;

    // Add Strophe Namespaces
    Strophe.addNamespace('MUC_ADMIN', Strophe.NS.MUC + "#admin");
    Strophe.addNamespace('MUC_OWNER', Strophe.NS.MUC + "#owner");
    Strophe.addNamespace('MUC_REGISTER', "jabber:iq:register");
    Strophe.addNamespace('MUC_ROOMCONF', Strophe.NS.MUC + "#roomconfig");
    Strophe.addNamespace('MUC_USER', Strophe.NS.MUC + "#user");

    converse_api.plugins.add('muc', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            wrappedChatBox: function (chatbox) {
                /* Wrap a chatbox for outside consumption (i.e. so that it can be
                * returned via the API.
                */
                if (!chatbox) { return; }
                var view = converse.chatboxviews.get(chatbox.get('jid'));
                var box = this._super.wrappedChatBox.apply(this, arguments);
                box.is_chatroom = view.is_chatroom;
                return box;
            },

            Features: {
                addClientFeatures: function () {
                    this._super.addClientFeatures.apply(this, arguments);
                    converse.connection.disco.addFeature('jabber:x:conference'); // Invites
                    if (this.allow_muc) {
                        this.connection.disco.addFeature(Strophe.NS.MUC);
                    }
                }
            },

            ControlBoxView: {
                renderContactsPanel: function () {
                    var converse = this._super.converse;
                    this._super.renderContactsPanel.apply(this, arguments);
                    if (converse.allow_muc) {
                        this.roomspanel = new converse.RoomsPanel({
                            '$parent': this.$el.find('.controlbox-panes'),
                            'model': new (Backbone.Model.extend({
                                id: b64_sha1('converse.roomspanel'+converse.bare_jid), // Required by sessionStorage
                                browserStorage: new Backbone.BrowserStorage[converse.storage](
                                    b64_sha1('converse.roomspanel'+converse.bare_jid))
                            }))()
                        });
                        this.roomspanel.render().model.fetch();
                        if (!this.roomspanel.model.get('nick')) {
                            this.roomspanel.model.save({
                                nick: Strophe.getNodeFromJid(converse.bare_jid)
                            });
                        }
                    }
                },

                onConnected: function () {
                    var converse = this._super.converse;
                    this._super.onConnected.apply(this, arguments);

                    if (this.model.get('connected')) {
                        converse.features.off('add', this.featureAdded, this);
                        converse.features.on('add', this.featureAdded, this);
                        // Features could have been added before the controlbox was
                        // initialized. We're only interested in MUC
                        var feature = converse.features.findWhere({
                            'var': Strophe.NS.MUC
                        });
                        if (feature) {
                            this.featureAdded(feature);
                        }
                    }
                },

                featureAdded: function (feature) {
                    var converse = this._super.converse;
                    if ((feature.get('var') === Strophe.NS.MUC) && (converse.allow_muc)) {
                        this.roomspanel.model.save({muc_domain: feature.get('from')});
                        var $server= this.$el.find('input.new-chatroom-server');
                        if (! $server.is(':focus')) {
                            $server.val(this.roomspanel.model.get('muc_domain'));
                        }
                    }
                }
            },

            ChatBoxView: {
                clearChatRoomMessages: function (ev) {
                    /* New method added to the ChatBox model which allows all
                     * messages in a chatroom to be cleared.
                     */
                    if (typeof ev !== "undefined") { ev.stopPropagation(); }
                    var result = confirm(__("Are you sure you want to clear the messages from this room?"));
                    if (result === true) {
                        this.$content.empty();
                    }
                    return this;
                },
            },

            ChatBoxes: {
                registerMessageHandler: function () {
                    /* Override so that we can register a handler
                     * for chat room invites.
                     */
                    this._super.registerMessageHandler.apply(this, arguments); // First call the original
                    this._super.converse.connection.addHandler(
                        function (message) {
                            this.onInvite(message);
                            return true;
                        }.bind(this), 'jabber:x:conference', 'message');
                },

                onInvite: function (message) {
                    /* An invitation to join a chat room has been received */
                    var converse = this._super.converse,
                        $message = $(message),
                        $x = $message.children('x[xmlns="jabber:x:conference"]'),
                        from = Strophe.getBareJidFromJid($message.attr('from')),
                        room_jid = $x.attr('jid'),
                        reason = $x.attr('reason'),
                        contact = converse.roster.get(from),
                        result;

                    if (converse.auto_join_on_invite) {
                        result = true;
                    } else {
                        contact = contact? contact.get('fullname'): Strophe.getNodeFromJid(from);   // Invite request might come from someone not your roster list
                        if (!reason) {
                            result = confirm(
                                __(___("%1$s has invited you to join a chat room: %2$s"), contact, room_jid)
                            );
                        } else {
                            result = confirm(
                                __(___('%1$s has invited you to join a chat room: %2$s, and left the following reason: "%3$s"'), contact, room_jid, reason)
                            );
                        }
                    }
                    if (result === true) {
                        var chatroom = converse.chatboxviews.showChat({
                            'id': room_jid,
                            'jid': room_jid,
                            'name': Strophe.unescapeNode(Strophe.getNodeFromJid(room_jid)),
                            'nick': Strophe.unescapeNode(Strophe.getNodeFromJid(converse.connection.jid)),
                            'chatroom': true,
                            'box_id': b64_sha1(room_jid),
                            'password': $x.attr('password')
                        });
                        if (!_.contains(
                                    [Strophe.Status.CONNECTING, Strophe.Status.CONNECTED],
                                    chatroom.get('connection_status'))
                                ) {
                            converse.chatboxviews.get(room_jid).join(null);
                        }
                    }
                }
            },

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    var view = this.get(item.get('id'));
                    if (!view && item.get('chatroom')) {
                        view = new converse.ChatRoomView({'model': item});
                        this.add(item.get('id'), view);
                    } else {
                        this._super.onChatBoxAdded.apply(this, arguments);
                    }
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var converse = this.converse;
            // Configuration values for this plugin
            this.updateSettings({
                allow_muc: true,
                auto_join_on_invite: false,  // Auto-join chatroom on invite
                hide_muc_server: false,
                muc_history_max_stanzas: undefined, // Takes an integer, limits the amount of messages to fetch from chat room's history
                show_toolbar: true,
            });


            converse.ChatRoomView = converse.ChatBoxView.extend({
                /* Backbone View which renders a chat room, based upon the view
                * for normal one-on-one chat boxes.
                */
                length: 300,
                tagName: 'div',
                className: 'chatbox chatroom',
                events: {
                    'click .close-chatbox-button': 'close',
                    'click .toggle-chatbox-button': 'minimize',
                    'click .configure-chatroom-button': 'configureChatRoom',
                    'click .toggle-smiley': 'toggleEmoticonMenu',
                    'click .toggle-smiley ul li': 'insertEmoticon',
                    'click .toggle-clear': 'clearChatRoomMessages',
                    'click .toggle-call': 'toggleCall',
                    'click .toggle-occupants a': 'toggleOccupants',
                    'keypress textarea.chat-textarea': 'keyPressed',
                    'mousedown .dragresize-top': 'onStartVerticalResize',
                    'mousedown .dragresize-left': 'onStartHorizontalResize',
                    'mousedown .dragresize-topleft': 'onStartDiagonalResize'
                },
                is_chatroom: true,

                initialize: function () {
                    $(window).on('resize', _.debounce(this.setDimensions.bind(this), 100));
                    this.model.messages.on('add', this.onMessageAdded, this);
                    this.model.on('change:minimized', function (item) {
                        if (item.get('minimized')) {
                            this.hide();
                        } else {
                            this.maximize();
                        }
                    }, this);
                    this.model.on('destroy', function () {
                        this.hide().leave();
                    }, this);

                    this.occupantsview = new converse.ChatRoomOccupantsView({
                        model: new converse.ChatRoomOccupants({nick: this.model.get('nick')})
                    });
                    var id = b64_sha1('converse.occupants'+converse.bare_jid+this.model.get('id')+this.model.get('nick'));
                    this.occupantsview.model.browserStorage = new Backbone.BrowserStorage[converse.storage](id);

                    this.occupantsview.chatroomview = this;
                    this.render().$el.hide();
                    this.occupantsview.model.fetch({add:true});
                    this.join(null, {'maxstanzas': converse.muc_history_max_stanzas});
                    this.fetchMessages();
                    converse.emit('chatRoomOpened', this);

                    this.$el.insertAfter(converse.chatboxviews.get("controlbox").$el);
                    if (this.model.get('minimized')) {
                        this.hide();
                    } else {
                        this.show();
                    }
                },

                render: function () {
                    this.$el.attr('id', this.model.get('box_id'))
                            .html(converse.templates.chatroom(this.model.toJSON()));
                    this.renderChatArea();
                    this.$content.on('scroll', _.debounce(this.onScroll.bind(this), 100));
                    this.setWidth();
                    setTimeout(converse.refreshWebkit, 50);
                    return this;
                },

                renderChatArea: function () {
                    if (!this.$('.chat-area').length) {
                        this.$('.chatroom-body').empty()
                            .append(
                                converse.templates.chatarea({
                                    'show_toolbar': converse.show_toolbar,
                                    'label_message': __('Message')
                                }))
                            .append(this.occupantsview.render().$el);
                        this.renderToolbar();
                        this.$content = this.$el.find('.chat-content');
                    }
                    this.toggleOccupants(null, true);
                    return this;
                },

                toggleOccupants: function (ev, preserve_state) {
                    if (ev) {
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    if (preserve_state) {
                        // Bit of a hack, to make sure that the sidebar's state doesn't change
                        this.model.set({hidden_occupants: !this.model.get('hidden_occupants')});
                    }
                    var $el = this.$('.icon-hide-users');
                    if (!this.model.get('hidden_occupants')) {
                        this.model.save({hidden_occupants: true});
                        $el.removeClass('icon-hide-users').addClass('icon-show-users');
                        this.$('.occupants').addClass('hidden');
                        this.$('.chat-area').addClass('full');
                        this.scrollDown();
                    } else {
                        this.model.save({hidden_occupants: false});
                        $el.removeClass('icon-show-users').addClass('icon-hide-users');
                        this.$('.chat-area').removeClass('full');
                        this.$('div.occupants').removeClass('hidden');
                        this.scrollDown();
                    }
                },

                directInvite: function (recipient, reason) {
                    var attrs = {
                        xmlns: 'jabber:x:conference',
                        jid: this.model.get('jid')
                    };
                    if (reason !== null) { attrs.reason = reason; }
                    if (this.model.get('password')) { attrs.password = this.model.get('password'); }
                    var invitation = $msg({
                        from: converse.connection.jid,
                        to: recipient,
                        id: converse.connection.getUniqueId()
                    }).c('x', attrs);
                    converse.connection.send(invitation);
                    converse.emit('roomInviteSent', {
                        'room': this,
                        'recipient': recipient,
                        'reason': reason
                    });
                },

                onCommandError: function (stanza) {
                    this.showStatusNotification(__("Error: could not execute the command"), true);
                },

                sendChatRoomMessage: function (text) {
                    var msgid = converse.connection.getUniqueId();
                    var msg = $msg({
                        to: this.model.get('jid'),
                        from: converse.connection.jid,
                        type: 'groupchat',
                        id: msgid
                    }).c("body").t(text).up()
                    .c("x", {xmlns: "jabber:x:event"}).c("composing");
                    converse.connection.send(msg);

                    var fullname = converse.xmppstatus.get('fullname');
                    this.model.messages.create({
                        fullname: _.isEmpty(fullname)? converse.bare_jid: fullname,
                        sender: 'me',
                        time: moment().format(),
                        message: text,
                        msgid: msgid
                    });
                },

                setAffiliation: function(room, jid, affiliation, reason, onSuccess, onError) {
                    var item = $build("item", {jid: jid, affiliation: affiliation});
                    var iq = $iq({to: room, type: "set"}).c("query", {xmlns: Strophe.NS.MUC_ADMIN}).cnode(item.node);
                    if (reason !== null) { iq.c("reason", reason); }
                    return converse.connection.sendIQ(iq.tree(), onSuccess, onError);
                },

                modifyRole: function(room, nick, role, reason, onSuccess, onError) {
                    var item = $build("item", {nick: nick, role: role});
                    var iq = $iq({to: room, type: "set"}).c("query", {xmlns: Strophe.NS.MUC_ADMIN}).cnode(item.node);
                    if (reason !== null) { iq.c("reason", reason); }
                    return converse.connection.sendIQ(iq.tree(), onSuccess, onError);
                },

                member: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'member', reason, handler_cb, error_cb);
                },
                revoke: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'none', reason, handler_cb, error_cb);
                },
                owner: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'owner', reason, handler_cb, error_cb);
                },
                admin: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'admin', reason, handler_cb, error_cb);
                },

                validateRoleChangeCommand: function (command, args) {
                    /* Check that a command to change a chat room user's role or
                    * affiliation has anough arguments.
                    */
                    // TODO check if first argument is valid
                    if (args.length < 1 || args.length > 2) {
                        this.showStatusNotification(
                            __("Error: the \""+command+"\" command takes two arguments, the user's nickname and optionally a reason."),
                            true
                        );
                        return false;
                    }
                    return true;
                },

                onChatRoomMessageSubmitted: function (text) {
                    /* Gets called when the user presses enter to send off a
                    * message in a chat room.
                    *
                    * Parameters:
                    *    (String) text - The message text.
                    */
                    var match = text.replace(/^\s*/, "").match(/^\/(.*?)(?: (.*))?$/) || [false, '', ''],
                        args = match[2] && match[2].splitOnce(' ') || [];
                    switch (match[1]) {
                        case 'admin':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'admin', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'ban':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'outcast', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'clear':
                            this.clearChatRoomMessages();
                            break;
                        case 'deop':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'occupant', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'help':
                            this.showHelpMessages([
                                '<strong>/admin</strong>: ' +__("Change user's affiliation to admin"),
                                '<strong>/ban</strong>: '   +__('Ban user from room'),
                                '<strong>/clear</strong>: ' +__('Remove messages'),
                                '<strong>/deop</strong>: '  +__('Change user role to occupant'),
                                '<strong>/help</strong>: '  +__('Show this menu'),
                                '<strong>/kick</strong>: '  +__('Kick user from room'),
                                '<strong>/me</strong>: '    +__('Write in 3rd person'),
                                '<strong>/member</strong>: '+__('Grant membership to a user'),
                                '<strong>/mute</strong>: '  +__("Remove user's ability to post messages"),
                                '<strong>/nick</strong>: '  +__('Change your nickname'),
                                '<strong>/op</strong>: '    +__('Grant moderator role to user'),
                                '<strong>/owner</strong>: ' +__('Grant ownership of this room'),
                                '<strong>/revoke</strong>: '+__("Revoke user's membership"),
                                '<strong>/topic</strong>: ' +__('Set room topic'),
                                '<strong>/voice</strong>: ' +__('Allow muted user to post messages')
                            ]);
                            break;
                        case 'kick':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'none', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'mute':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'visitor', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'member':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'member', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'nick':
                            converse.connection.send($pres({
                                from: converse.connection.jid,
                                to: this.getRoomJIDAndNick(match[2]),
                                id: converse.connection.getUniqueId()
                            }).tree());
                            break;
                        case 'owner':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'owner', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'op':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'moderator', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'revoke':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'none', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'topic':
                            converse.connection.send(
                                $msg({
                                    to: this.model.get('jid'),
                                    from: converse.connection.jid,
                                    type: "groupchat"
                                }).c("subject", {xmlns: "jabber:client"}).t(match[2]).tree()
                            );
                            break;
                        case 'voice':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'occupant', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        default:
                            this.sendChatRoomMessage(text);
                        break;
                    }
                },

                handleMUCStanza: function (stanza) {
                    var xmlns, xquery, i;
                    var from = stanza.getAttribute('from');
                    var is_mam = $(stanza).find('[xmlns="'+Strophe.NS.MAM+'"]').length > 0;
                    if (!from || (this.model.get('id') !== from.split("/")[0])  || is_mam) {
                        return true;
                    }
                    if (stanza.nodeName === "message") {
                        _.compose(this.onChatRoomMessage.bind(this), this.showStatusMessages.bind(this))(stanza);
                    } else if (stanza.nodeName === "presence") {
                        xquery = stanza.getElementsByTagName("x");
                        if (xquery.length > 0) {
                            for (i = 0; i < xquery.length; i++) {
                                xmlns = xquery[i].getAttribute("xmlns");
                                if (xmlns && xmlns.match(Strophe.NS.MUC)) {
                                    this.onChatRoomPresence(stanza);
                                    break;
                                }
                            }
                        }
                    }
                    return true;
                },

                getRoomJIDAndNick: function (nick) {
                    nick = nick || this.model.get('nick');
                    var room = this.model.get('jid');
                    var node = Strophe.getNodeFromJid(room);
                    var domain = Strophe.getDomainFromJid(room);
                    return node + "@" + domain + (nick !== null ? "/" + nick : "");
                },

                join: function (password, history_attrs, extended_presence) {
                    var stanza = $pres({
                        from: converse.connection.jid,
                        to: this.getRoomJIDAndNick()
                    }).c("x", {
                        xmlns: Strophe.NS.MUC
                    });
                    if (typeof history_attrs === "object" && Object.keys(history_attrs).length) {
                        stanza = stanza.c("history", history_attrs).up();
                    }
                    if (password) {
                        stanza.cnode(Strophe.xmlElement("password", [], password));
                    }
                    if (typeof extended_presence !== "undefined" && extended_presence !== null) {
                        stanza.up.cnode(extended_presence);
                    }
                    if (!this.handler) {
                        this.handler = converse.connection.addHandler(this.handleMUCStanza.bind(this));
                    }
                    this.model.set('connection_status', Strophe.Status.CONNECTING);
                    return converse.connection.send(stanza);
                },

                leave: function(exit_msg) {
                    var presenceid = converse.connection.getUniqueId();
                    var presence = $pres({
                        type: "unavailable",
                        id: presenceid,
                        from: converse.connection.jid,
                        to: this.getRoomJIDAndNick()
                    });
                    if (exit_msg !== null) {
                        presence.c("status", exit_msg);
                    }
                    converse.connection.addHandler(
                        function () { this.model.set('connection_status', Strophe.Status.DISCONNECTED); }.bind(this),
                        null, "presence", null, presenceid);
                    converse.connection.send(presence);
                },

                renderConfigurationForm: function (stanza) {
                    var $form = this.$el.find('form.chatroom-form'),
                        $fieldset = $form.children('fieldset:first'),
                        $stanza = $(stanza),
                        $fields = $stanza.find('field'),
                        title = $stanza.find('title').text(),
                        instructions = $stanza.find('instructions').text();
                    $fieldset.find('span.spinner').remove();
                    $fieldset.append($('<legend>').text(title));
                    if (instructions && instructions !== title) {
                        $fieldset.append($('<p class="instructions">').text(instructions));
                    }
                    _.each($fields, function (field) {
                        $fieldset.append(utils.xForm2webForm($(field), $stanza));
                    });
                    $form.append('<fieldset></fieldset>');
                    $fieldset = $form.children('fieldset:last');
                    $fieldset.append('<input type="submit" class="pure-button button-primary" value="'+__('Save')+'"/>');
                    $fieldset.append('<input type="button" class="pure-button button-cancel" value="'+__('Cancel')+'"/>');
                    $fieldset.find('input[type=button]').on('click', this.cancelConfiguration.bind(this));
                    $form.on('submit', this.saveConfiguration.bind(this));
                },

                sendConfiguration: function(config, onSuccess, onError) {
                    // Send an IQ stanza with the room configuration.
                    var iq = $iq({to: this.model.get('jid'), type: "set"})
                        .c("query", {xmlns: Strophe.NS.MUC_OWNER})
                        .c("x", {xmlns: Strophe.NS.XFORM, type: "submit"});
                    _.each(config, function (node) { iq.cnode(node).up(); });
                    return converse.connection.sendIQ(iq.tree(), onSuccess, onError);
                },

                saveConfiguration: function (ev) {
                    ev.preventDefault();
                    var that = this;
                    var $inputs = $(ev.target).find(':input:not([type=button]):not([type=submit])'),
                        count = $inputs.length,
                        configArray = [];
                    $inputs.each(function () {
                        configArray.push(utils.webForm2xForm(this));
                        if (!--count) {
                            that.sendConfiguration(
                                configArray,
                                that.onConfigSaved.bind(that),
                                that.onErrorConfigSaved.bind(that)
                            );
                        }
                    });
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.$el.find('.chat-area').removeClass('hidden');
                            that.$el.find('.occupants').removeClass('hidden');
                        });
                },

                onConfigSaved: function (stanza) {
                    // TODO: provide feedback
                },

                onErrorConfigSaved: function (stanza) {
                    this.showStatusNotification(__("An error occurred while trying to save the form."));
                },

                cancelConfiguration: function (ev) {
                    ev.preventDefault();
                    var that = this;
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.$el.find('.chat-area').removeClass('hidden');
                            that.$el.find('.occupants').removeClass('hidden');
                        });
                },

                configureChatRoom: function (ev) {
                    ev.preventDefault();
                    if (this.$el.find('div.chatroom-form-container').length) {
                        return;
                    }
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$('.chatroom-body').append(converse.templates.chatroom_form());
                    converse.connection.sendIQ(
                            $iq({
                                to: this.model.get('jid'),
                                type: "get"
                            }).c("query", {xmlns: Strophe.NS.MUC_OWNER}).tree(),
                            this.renderConfigurationForm.bind(this)
                    );
                },

                submitPassword: function (ev) {
                    ev.preventDefault();
                    var password = this.$el.find('.chatroom-form').find('input[type=password]').val();
                    this.$el.find('.chatroom-form-container').replaceWith('<span class="spinner centered"/>');
                    this.join(password);
                },

                renderPasswordForm: function () {
                    this.$('.chatroom-body').children().hide();
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append(
                        converse.templates.chatroom_password_form({
                            heading: __('This chatroom requires a password'),
                            label_password: __('Password: '),
                            label_submit: __('Submit')
                        }));
                    this.$('.chatroom-form').on('submit', this.submitPassword.bind(this));
                },

                showDisconnectMessage: function (msg) {
                    this.$('.chat-area').hide();
                    this.$('.occupants').hide();
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append($('<p>'+msg+'</p>'));
                },

                /* http://xmpp.org/extensions/xep-0045.html
                * ----------------------------------------
                * 100 message      Entering a room         Inform user that any occupant is allowed to see the user's full JID
                * 101 message (out of band)                Affiliation change  Inform user that his or her affiliation changed while not in the room
                * 102 message      Configuration change    Inform occupants that room now shows unavailable members
                * 103 message      Configuration change    Inform occupants that room now does not show unavailable members
                * 104 message      Configuration change    Inform occupants that a non-privacy-related room configuration change has occurred
                * 110 presence     Any room presence       Inform user that presence refers to one of its own room occupants
                * 170 message or initial presence          Configuration change    Inform occupants that room logging is now enabled
                * 171 message      Configuration change    Inform occupants that room logging is now disabled
                * 172 message      Configuration change    Inform occupants that the room is now non-anonymous
                * 173 message      Configuration change    Inform occupants that the room is now semi-anonymous
                * 174 message      Configuration change    Inform occupants that the room is now fully-anonymous
                * 201 presence     Entering a room         Inform user that a new room has been created
                * 210 presence     Entering a room         Inform user that the service has assigned or modified the occupant's roomnick
                * 301 presence     Removal from room       Inform user that he or she has been banned from the room
                * 303 presence     Exiting a room          Inform all occupants of new room nickname
                * 307 presence     Removal from room       Inform user that he or she has been kicked from the room
                * 321 presence     Removal from room       Inform user that he or she is being removed from the room because of an affiliation change
                * 322 presence     Removal from room       Inform user that he or she is being removed from the room because the room has been changed to members-only and the user is not a member
                * 332 presence     Removal from room       Inform user that he or she is being removed from the room because of a system shutdown
                */
                infoMessages: {
                    100: __('This room is not anonymous'),
                    102: __('This room now shows unavailable members'),
                    103: __('This room does not show unavailable members'),
                    104: __('Non-privacy-related room configuration has changed'),
                    170: __('Room logging is now enabled'),
                    171: __('Room logging is now disabled'),
                    172: __('This room is now non-anonymous'),
                    173: __('This room is now semi-anonymous'),
                    174: __('This room is now fully-anonymous'),
                    201: __('A new room has been created')
                },

                disconnectMessages: {
                    301: __('You have been banned from this room'),
                    307: __('You have been kicked from this room'),
                    321: __("You have been removed from this room because of an affiliation change"),
                    322: __("You have been removed from this room because the room has changed to members-only and you're not a member"),
                    332: __("You have been removed from this room because the MUC (Multi-user chat) service is being shut down.")
                },

                actionInfoMessages: {
                    /* XXX: Note the triple underscore function and not double
                    * underscore.
                    *
                    * This is a hack. We can't pass the strings to __ because we
                    * don't yet know what the variable to interpolate is.
                    *
                    * Triple underscore will just return the string again, but we
                    * can then at least tell gettext to scan for it so that these
                    * strings are picked up by the translation machinery.
                    */
                    301: ___("<strong>%1$s</strong> has been banned"),
                    303: ___("<strong>%1$s</strong>'s nickname has changed"),
                    307: ___("<strong>%1$s</strong> has been kicked out"),
                    321: ___("<strong>%1$s</strong> has been removed because of an affiliation change"),
                    322: ___("<strong>%1$s</strong> has been removed for not being a member")
                },

                newNicknameMessages: {
                    210: ___('Your nickname has been automatically changed to: <strong>%1$s</strong>'),
                    303: ___('Your nickname has been changed to: <strong>%1$s</strong>')
                },

                showStatusMessages: function (el, is_self) {
                    /* Check for status codes and communicate their purpose to the user.
                    * Allow user to configure chat room if they are the owner.
                    * See: http://xmpp.org/registrar/mucstatus.html
                    */
                    var $el = $(el),
                        i, disconnect_msgs = [], msgs = [], reasons = [];

                    $el.find('x[xmlns="'+Strophe.NS.MUC_USER+'"]').each(function (idx, x) {
                        var $item = $(x).find('item');
                        if (Strophe.getBareJidFromJid($item.attr('jid')) === converse.bare_jid && $item.attr('affiliation') === 'owner') {
                            this.$el.find('a.configure-chatroom-button').show();
                        }
                        $(x).find('item reason').each(function (idx, reason) {
                            if ($(reason).text()) {
                                reasons.push($(reason).text());
                            }
                        });
                        $(x).find('status').each(function (idx, stat) {
                            var code = stat.getAttribute('code');
                            var from_nick = Strophe.unescapeNode(Strophe.getResourceFromJid($el.attr('from')));
                            if (is_self && code === "210") {
                                msgs.push(__(this.newNicknameMessages[code], from_nick));
                            } else if (is_self && code === "303") {
                                msgs.push(__(this.newNicknameMessages[code], $item.attr('nick')));
                            } else if (is_self && _.contains(_.keys(this.disconnectMessages), code)) {
                                disconnect_msgs.push(this.disconnectMessages[code]);
                            } else if (!is_self && _.contains(_.keys(this.actionInfoMessages), code)) {
                                msgs.push(__(this.actionInfoMessages[code], from_nick));
                            } else if (_.contains(_.keys(this.infoMessages), code)) {
                                msgs.push(this.infoMessages[code]);
                            } else if (code !== '110') {
                                if ($(stat).text()) {
                                    msgs.push($(stat).text()); // Sometimes the status contains human readable text and not a code.
                                }
                            }
                        }.bind(this));
                    }.bind(this));

                    if (disconnect_msgs.length > 0) {
                        for (i=0; i<disconnect_msgs.length; i++) {
                            this.showDisconnectMessage(disconnect_msgs[i]);
                        }
                        for (i=0; i<reasons.length; i++) {
                            this.showDisconnectMessage(__('The reason given is: "'+reasons[i]+'"'), true);
                        }
                        this.model.set('connection_status', Strophe.Status.DISCONNECTED);
                        return;
                    }
                    for (i=0; i<msgs.length; i++) {
                        this.$content.append(converse.templates.info({message: msgs[i]}));
                    }
                    for (i=0; i<reasons.length; i++) {
                        this.showStatusNotification(__('The reason given is: "'+reasons[i]+'"'), true);
                    }
                    this.scrollDown();
                    return el;
                },

                showErrorMessage: function ($error) {
                    // We didn't enter the room, so we must remove it from the MUC
                    // add-on
                    if ($error.attr('type') === 'auth') {
                        if ($error.find('not-authorized').length) {
                            this.renderPasswordForm();
                        } else if ($error.find('registration-required').length) {
                            this.showDisconnectMessage(__('You are not on the member list of this room'));
                        } else if ($error.find('forbidden').length) {
                            this.showDisconnectMessage(__('You have been banned from this room'));
                        }
                    } else if ($error.attr('type') === 'modify') {
                        if ($error.find('jid-malformed').length) {
                            this.showDisconnectMessage(__('No nickname was specified'));
                        }
                    } else if ($error.attr('type') === 'cancel') {
                        if ($error.find('not-allowed').length) {
                            this.showDisconnectMessage(__('You are not allowed to create new rooms'));
                        } else if ($error.find('not-acceptable').length) {
                            this.showDisconnectMessage(__("Your nickname doesn't conform to this room's policies"));
                        } else if ($error.find('conflict').length) {
                            this.showDisconnectMessage(__("Your nickname is already taken"));
                            // TODO: give user the option of choosing a different nickname
                        } else if ($error.find('item-not-found').length) {
                            this.showDisconnectMessage(__("This room does not (yet) exist"));
                        } else if ($error.find('service-unavailable').length) {
                            this.showDisconnectMessage(__("This room has reached it's maximum number of occupants"));
                        }
                    }
                },

                onChatRoomPresence: function (pres) {
                    var $presence = $(pres), is_self;
                    var nick = this.model.get('nick');
                    if ($presence.attr('type') === 'error') {
                        this.model.set('connection_status', Strophe.Status.DISCONNECTED);
                        this.showErrorMessage($presence.find('error'));
                    } else {
                        is_self = ($presence.find("status[code='110']").length) ||
                            ($presence.attr('from') === this.model.get('id')+'/'+Strophe.escapeNode(nick));
                        if (this.model.get('connection_status') !== Strophe.Status.CONNECTED) {
                            this.model.set('connection_status', Strophe.Status.CONNECTED);
                        }
                        this.showStatusMessages(pres, is_self);
                    }
                    this.occupantsview.updateOccupantsOnPresence(pres);
                },

                onChatRoomMessage: function (message) {
                    var $message = $(message),
                        $forwarded = $message.find('forwarded'),
                        $delay;

                    if ($forwarded.length) {
                        $message = $forwarded.children('message');
                        $delay = $forwarded.children('delay');
                    }
                    var jid = $message.attr('from'),
                        msgid = $message.attr('id'),
                        resource = Strophe.getResourceFromJid(jid),
                        sender = resource && Strophe.unescapeNode(resource) || '',
                        subject = $message.children('subject').text();

                    if (msgid && this.model.messages.findWhere({msgid: msgid})) {
                        return true; // We already have this message stored.
                    }
                    if (subject) {
                        this.$el.find('.chatroom-topic').text(subject).attr('title', subject);
                        // For translators: the %1$s and %2$s parts will get replaced by the user and topic text respectively
                        // Example: Topic set by JC Brand to: Hello World!
                        this.$content.append(
                            converse.templates.info({
                                'message': __('Topic set by %1$s to: %2$s', sender, subject)
                            }));
                    }
                    if (sender === '') {
                        return true;
                    }
                    this.model.createMessage($message, $delay);
                    if (sender !== this.model.get('nick')) {
                        // We only emit an event if it's not our own message
                        converse.emit('message', message);
                    }
                    return true;
                },

                fetchArchivedMessages: function (options) {
                    /* Fetch archived chat messages from the XMPP server.
                    *
                    * Then, upon receiving them, call onChatRoomMessage
                    * so that they are displayed inside it.
                    */
                    if (!converse.features.findWhere({'var': Strophe.NS.MAM})) {
                        converse.log("Attempted to fetch archived messages but this user's server doesn't support XEP-0313");
                        return;
                    }
                    this.addSpinner();
                    converse_api.archive.query(_.extend(options, {'groupchat': true}),
                        function (messages) {
                            this.clearSpinner();
                            if (messages.length) {
                                _.map(messages, this.onChatRoomMessage.bind(this));
                            }
                        }.bind(this),
                        function () {
                            this.clearSpinner();
                            converse.log("Error while trying to fetch archived messages", "error");
                        }.bind(this)
                    );
                }
            });

            converse.ChatRoomOccupant = Backbone.Model;
            converse.ChatRoomOccupantView = Backbone.View.extend({
                tagName: 'li',
                initialize: function () {
                    this.model.on('add', this.render, this);
                    this.model.on('change', this.render, this);
                    this.model.on('destroy', this.destroy, this);
                },
                render: function () {
                    var $new = converse.templates.occupant(
                        _.extend(
                            this.model.toJSON(), {
                                'desc_moderator': __('This user is a moderator'),
                                'desc_occupant': __('This user can send messages in this room'),
                                'desc_visitor': __('This user can NOT send messages in this room')
                        })
                    );
                    this.$el.replaceWith($new);
                    this.setElement($new, true);
                    return this;
                },

                destroy: function () {
                    this.$el.remove();
                }
            });

            converse.ChatRoomOccupants = Backbone.Collection.extend({
                model: converse.ChatRoomOccupant
            });

            converse.ChatRoomOccupantsView = Backbone.Overview.extend({
                tagName: 'div',
                className: 'occupants',

                initialize: function () {
                    this.model.on("add", this.onOccupantAdded, this);
                },

                render: function () {
                    this.$el.html(
                        converse.templates.chatroom_sidebar({
                            'label_invitation': __('Invite...'),
                            'label_occupants': __('Occupants')
                        })
                    );
                    return this.initInviteWidget();
                },

                onOccupantAdded: function (item) {
                    var view = this.get(item.get('id'));
                    if (!view) {
                        view = this.add(item.get('id'), new converse.ChatRoomOccupantView({model: item}));
                    } else {
                        delete view.model; // Remove ref to old model to help garbage collection
                        view.model = item;
                        view.initialize();
                    }
                    this.$('.occupant-list').append(view.render().$el);
                },

                parsePresence: function (pres) {
                    var id = Strophe.getResourceFromJid(pres.getAttribute("from"));
                    var data = {
                        id: id,
                        nick: id,
                        type: pres.getAttribute("type"),
                        states: []
                    };
                    _.each(pres.childNodes, function (child) {
                        switch (child.nodeName) {
                            case "status":
                                data.status = child.textContent || null;
                                break;
                            case "show":
                                data.show = child.textContent || null;
                                break;
                            case "x":
                                if (child.getAttribute("xmlns") === Strophe.NS.MUC_USER) {
                                    _.each(child.childNodes, function (item) {
                                        switch (item.nodeName) {
                                            case "item":
                                                data.affiliation = item.getAttribute("affiliation");
                                                data.role = item.getAttribute("role");
                                                data.jid = item.getAttribute("jid");
                                                data.nick = item.getAttribute("nick") || data.nick;
                                                break;
                                            case "status":
                                                if (item.getAttribute("code")) {
                                                    data.states.push(item.getAttribute("code"));
                                                }
                                        }
                                    });
                                }
                        }
                    });
                    return data;
                },

                updateOccupantsOnPresence: function (pres) {
                    var occupant;
                    var data = this.parsePresence(pres);
                    switch (data.type) {
                        case 'error':
                            return true;
                        case 'unavailable':
                            occupant = this.model.get(data.id);
                            if (occupant) { occupant.destroy(); }
                            break;
                        default:
                            occupant = this.model.get(data.id);
                            if (occupant) {
                                occupant.save(data);
                            } else {
                                this.model.create(data);
                            }
                    }
                },

                initInviteWidget: function () {
                    var $el = this.$('input.invited-contact');
                    $el.typeahead({
                        minLength: 1,
                        highlight: true
                    }, {
                        name: 'contacts-dataset',
                        source: function (q, cb) {
                            var results = [];
                            _.each(converse.roster.filter(utils.contains(['fullname', 'jid'], q)), function (n) {
                                results.push({value: n.get('fullname'), jid: n.get('jid')});
                            });
                            cb(results);
                        },
                        templates: {
                            suggestion: _.template('<p data-jid="{{jid}}">{{value}}</p>')
                        }
                    });
                    $el.on('typeahead:selected', function (ev, suggestion, dname) {
                        var reason = prompt(
                            __(___('You are about to invite %1$s to the chat room "%2$s". '), suggestion.value, this.model.get('id')) +
                            __("You may optionally include a message, explaining the reason for the invitation.")
                        );
                        if (reason !== null) {
                            this.chatroomview.directInvite(suggestion.jid, reason);
                        }
                        $(ev.target).typeahead('val', '');
                    }.bind(this));
                    return this;
                }
            });

            converse.RoomsPanel = Backbone.View.extend({
                /* Backbone View which renders the "Rooms" tab and accompanying
                * panel in the control box.
                *
                * In this panel, chat rooms can be listed, joined and new rooms
                * can be created.
                */
                tagName: 'div',
                className: 'controlbox-pane',
                id: 'chatrooms',
                events: {
                    'submit form.add-chatroom': 'createChatRoom',
                    'click input#show-rooms': 'showRooms',
                    'click a.open-room': 'createChatRoom',
                    'click a.room-info': 'showRoomInfo',
                    'change input[name=server]': 'setDomain',
                    'change input[name=nick]': 'setNick'
                },

                initialize: function (cfg) {
                    this.$parent = cfg.$parent;
                    this.model.on('change:muc_domain', this.onDomainChange, this);
                    this.model.on('change:nick', this.onNickChange, this);
                },

                render: function () {
                    this.$parent.append(
                        this.$el.html(
                            converse.templates.room_panel({
                                'server_input_type': converse.hide_muc_server && 'hidden' || 'text',
                                'server_label_global_attr': converse.hide_muc_server && ' hidden' || '',
                                'label_room_name': __('Room name'),
                                'label_nickname': __('Nickname'),
                                'label_server': __('Server'),
                                'label_join': __('Join Room'),
                                'label_show_rooms': __('Show rooms')
                            })
                        ).hide());
                    this.$tabs = this.$parent.parent().find('#controlbox-tabs');
                    this.$tabs.append(converse.templates.chatrooms_tab({label_rooms: __('Rooms')}));
                    return this;
                },

                onDomainChange: function (model) {
                    var $server = this.$el.find('input.new-chatroom-server');
                    $server.val(model.get('muc_domain'));
                    if (converse.auto_list_rooms) {
                        this.updateRoomsList();
                    }
                },

                onNickChange: function (model) {
                    var $nick = this.$el.find('input.new-chatroom-nick');
                    $nick.val(model.get('nick'));
                },

                informNoRoomsFound: function () {
                    var $available_chatrooms = this.$el.find('#available-chatrooms');
                    // For translators: %1$s is a variable and will be replaced with the XMPP server name
                    $available_chatrooms.html('<dt>'+__('No rooms on %1$s',this.model.get('muc_domain'))+'</dt>');
                    $('input#show-rooms').show().siblings('span.spinner').remove();
                },

                onRoomsFound: function (iq) {
                    /* Handle the IQ stanza returned from the server, containing
                    * all its public rooms.
                    */
                    var name, jid, i, fragment,
                        $available_chatrooms = this.$el.find('#available-chatrooms');
                    this.rooms = $(iq).find('query').find('item');
                    if (this.rooms.length) {
                        // For translators: %1$s is a variable and will be
                        // replaced with the XMPP server name
                        $available_chatrooms.html('<dt>'+__('Rooms on %1$s',this.model.get('muc_domain'))+'</dt>');
                        fragment = document.createDocumentFragment();
                        for (i=0; i<this.rooms.length; i++) {
                            name = Strophe.unescapeNode($(this.rooms[i]).attr('name')||$(this.rooms[i]).attr('jid'));
                            jid = $(this.rooms[i]).attr('jid');
                            fragment.appendChild($(
                                converse.templates.room_item({
                                    'name':name,
                                    'jid':jid,
                                    'open_title': __('Click to open this room'),
                                    'info_title': __('Show more information on this room')
                                    })
                                )[0]);
                        }
                        $available_chatrooms.append(fragment);
                        $('input#show-rooms').show().siblings('span.spinner').remove();
                    } else {
                        this.informNoRoomsFound();
                    }
                    return true;
                },

                updateRoomsList: function () {
                    /* Send and IQ stanza to the server asking for all rooms
                    */
                    converse.connection.sendIQ(
                        $iq({
                            to: this.model.get('muc_domain'),
                            from: converse.connection.jid,
                            type: "get"
                        }).c("query", {xmlns: Strophe.NS.DISCO_ITEMS}),
                        this.onRoomsFound.bind(this),
                        this.informNoRoomsFound.bind(this)
                    );
                },

                showRooms: function () {
                    var $available_chatrooms = this.$el.find('#available-chatrooms');
                    var $server = this.$el.find('input.new-chatroom-server');
                    var server = $server.val();
                    if (!server) {
                        $server.addClass('error');
                        return;
                    }
                    this.$el.find('input.new-chatroom-name').removeClass('error');
                    $server.removeClass('error');
                    $available_chatrooms.empty();
                    $('input#show-rooms').hide().after('<span class="spinner"/>');
                    this.model.save({muc_domain: server});
                    this.updateRoomsList();
                },

                showRoomInfo: function (ev) {
                    var target = ev.target,
                        $dd = $(target).parent('dd'),
                        $div = $dd.find('div.room-info');
                    if ($div.length) {
                        $div.remove();
                    } else {
                        $dd.find('span.spinner').remove();
                        $dd.append('<span class="spinner hor_centered"/>');
                        converse.connection.disco.info(
                            $(target).attr('data-room-jid'),
                            null,
                            function (stanza) {
                                var $stanza = $(stanza);
                                // All MUC features found here: http://xmpp.org/registrar/disco-features.html
                                $dd.find('span.spinner').replaceWith(
                                    converse.templates.room_description({
                                        'desc': $stanza.find('field[var="muc#roominfo_description"] value').text(),
                                        'occ': $stanza.find('field[var="muc#roominfo_occupants"] value').text(),
                                        'hidden': $stanza.find('feature[var="muc_hidden"]').length,
                                        'membersonly': $stanza.find('feature[var="muc_membersonly"]').length,
                                        'moderated': $stanza.find('feature[var="muc_moderated"]').length,
                                        'nonanonymous': $stanza.find('feature[var="muc_nonanonymous"]').length,
                                        'open': $stanza.find('feature[var="muc_open"]').length,
                                        'passwordprotected': $stanza.find('feature[var="muc_passwordprotected"]').length,
                                        'persistent': $stanza.find('feature[var="muc_persistent"]').length,
                                        'publicroom': $stanza.find('feature[var="muc_public"]').length,
                                        'semianonymous': $stanza.find('feature[var="muc_semianonymous"]').length,
                                        'temporary': $stanza.find('feature[var="muc_temporary"]').length,
                                        'unmoderated': $stanza.find('feature[var="muc_unmoderated"]').length,
                                        'label_desc': __('Description:'),
                                        'label_occ': __('Occupants:'),
                                        'label_features': __('Features:'),
                                        'label_requires_auth': __('Requires authentication'),
                                        'label_hidden': __('Hidden'),
                                        'label_requires_invite': __('Requires an invitation'),
                                        'label_moderated': __('Moderated'),
                                        'label_non_anon': __('Non-anonymous'),
                                        'label_open_room': __('Open room'),
                                        'label_permanent_room': __('Permanent room'),
                                        'label_public': __('Public'),
                                        'label_semi_anon':  __('Semi-anonymous'),
                                        'label_temp_room':  __('Temporary room'),
                                        'label_unmoderated': __('Unmoderated')
                                    }));
                            }.bind(this));
                    }
                },

                createChatRoom: function (ev) {
                    ev.preventDefault();
                    var name, $name,
                        server, $server,
                        jid,
                        $nick = this.$el.find('input.new-chatroom-nick'),
                        nick = $nick.val(),
                        chatroom;

                    if (!nick) { $nick.addClass('error'); }
                    else { $nick.removeClass('error'); }

                    if (ev.type === 'click') {
                        name = $(ev.target).text();
                        jid = $(ev.target).attr('data-room-jid');
                    } else {
                        $name = this.$el.find('input.new-chatroom-name');
                        $server= this.$el.find('input.new-chatroom-server');
                        server = $server.val();
                        name = $name.val().trim();
                        $name.val(''); // Clear the input
                        if (name && server) {
                            jid = Strophe.escapeNode(name.toLowerCase()) + '@' + server.toLowerCase();
                            $name.removeClass('error');
                            $server.removeClass('error');
                            this.model.save({muc_domain: server});
                        } else {
                            if (!name) { $name.addClass('error'); }
                            if (!server) { $server.addClass('error'); }
                            return;
                        }
                    }
                    if (!nick) { return; }
                    chatroom = converse.chatboxviews.showChat({
                        'id': jid,
                        'jid': jid,
                        'name': name || Strophe.unescapeNode(Strophe.getNodeFromJid(jid)),
                        'nick': nick,
                        'chatroom': true,
                        'box_id': b64_sha1(jid)
                    });
                },

                setDomain: function (ev) {
                    this.model.save({muc_domain: ev.target.value});
                },

                setNick: function (ev) {
                    this.model.save({nick: ev.target.value});
                }
            });

            _.extend(converse_api, {
                /* We extend the default converse.js API to add methods specific to MUC
                * chat rooms.
                */
                'rooms': {
                    'open': function (jids, nick) {
                        if (!nick) {
                            nick = Strophe.getNodeFromJid(converse.bare_jid);
                        }
                        if (typeof nick !== "string") {
                            throw new TypeError('rooms.open: invalid nick, must be string');
                        }
                        var _transform = function (jid) {
                            jid = jid.toLowerCase();
                            var chatroom = converse.chatboxes.get(jid);
                            converse.log('jid');
                            if (!chatroom) {
                                chatroom = converse.chatboxviews.showChat({
                                    'id': jid,
                                    'jid': jid,
                                    'name': Strophe.unescapeNode(Strophe.getNodeFromJid(jid)),
                                    'nick': nick,
                                    'chatroom': true,
                                    'box_id': b64_sha1(jid)
                                });
                            }
                            return converse.wrappedChatBox(converse.chatboxes.getChatBox(jid, true));
                        };
                        if (typeof jids === "undefined") {
                            throw new TypeError('rooms.open: You need to provide at least one JID');
                        } else if (typeof jids === "string") {
                            return _transform(jids);
                        }
                        return _.map(jids, _transform);
                    },
                    'get': function (jids) {
                        if (typeof jids === "undefined") {
                            throw new TypeError("rooms.get: You need to provide at least one JID");
                        } else if (typeof jids === "string") {
                            return converse.wrappedChatBox(converse.chatboxes.getChatBox(jids, true));
                        }
                        return _.map(jids, _.partial(converse.wrappedChatBox, _.bind(converse.chatboxes.getChatBox, converse.chatboxes, _, true)));

                    }
                }
            });
        }
    });
}));