/* -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
 *
 * (c) 2013 Guido Guenther <agx@sigxcpu.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

const Gio = imports.gi.Gio;
const Lang = imports.lang;
const St = imports.gi.St;
const PopupMenu = imports.ui.popupMenu;
const Main = imports.ui.main;

const ORIENTATION_SCHEMA = 'org.gnome.settings-daemon.peripherals.touchscreen'
const ORIENTATION_LOCK_KEY = 'orientation-lock'
const ORIENTATION_BUS_NAME = 'org.gnome.SettingsDaemon'
const ORIENTATION_OBJECT_PATH = '/org/gnome/SettingsDaemon'

const pingIface = <interface name='org.freedesktop.DBus.Introspectable'>
<method name='Introspect'>
    <arg type='s' direction='out'/>
</method>
</interface>;
const Proxy = Gio.DBusProxy.makeProxyWrapper(pingIface);

function LockRotation() {
    this._init();
}

LockRotation.prototype = {
    _init: function() {
        let state;
        let item = new PopupMenu.PopupSwitchMenuItem(_("Lock Rotation"));

        item.connect('toggled', Lang.bind(this, this._rotationLockSwitched));
        this._rotationLockSwitch = item;

        this._settings = new Gio.Settings({ schema: ORIENTATION_SCHEMA });
        this._settingsID =
            this._settings.connect('changed::' + ORIENTATION_LOCK_KEY,
                                   Lang.bind(this, this._updateRotationLock));
        this._updateRotationLock();
    },

    _rotationLockSwitched: function (item, event) {
        if (this._settings.is_writable(ORIENTATION_LOCK_KEY)) {
            this._settings.set_boolean(ORIENTATION_LOCK_KEY, item.state);
        }
    },

    _updateRotationLock: function () {
        let state = this._settings.get_boolean(ORIENTATION_LOCK_KEY);
        this._rotationLockSwitch.setToggleState(state)
    },

    /* check whether we have the orientation object on the bus */
    _has_orientation: function () {
    },

    enable: function() {
        let proxy = new Proxy(Gio.DBus.session,
                              ORIENTATION_BUS_NAME,
                              ORIENTATION_OBJECT_PATH);

        proxy.IntrospectRemote(Lang.bind(this, function([result], err) {
            if (result.indexOf("Power") != -1) {
                let userMenu = Main.panel.statusArea.userMenu.menu;
                userMenu.addMenuItem(this._rotationLockSwitch, 4);
            }
        }));
    },

    disable: function() {
        this._settings.disconnect(this._settingsID);
        this._rotationLockSwitch.destroy();
    },
};

let _lockrotation;

function init() {
    /* do nothing */
}

function enable() {
    _lockrotation = new LockRotation();
    _lockrotation.enable();
}

function disable() {
    _lockrotation.disable();
}