synclient.js

/* TouchpadIndicator - Touchpad management GNOME Shell Extension.
 * Orignal work Copyright (C) 2011-2013 Armin Köhler <orangeshirt at web.de>
 * Modifcations Copyright (C) 2019 Ashesh Singh <user501254 at gmail.com>
 *
 * This file is part of TouchpadIndicator, a fork of Armin Köhler's
 * 'gnome-shell-extension-touchpad-indicator' project which is licensed GPLv2.
 * Orignal source code is available at https://git.io/fjVec.
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor
 * Boston, MA 02110-1301, USA.
 */

const Me = imports.misc.extensionUtils.getCurrentExtension();
const Lib = Me.imports.lib;

// Disable Synclient manually to prevent errors
const USE_SYNCLIENT = true;

function logging(event) {
    if (Lib.DEBUG) {
        Lib.logger(`Synclient.${event}`);
    }
}

var Synclient = class Synclient {
    constructor() {
        this._init();
    }

    _init() {
        logging('_init()');
        this.isUsable = this._isUsable();
        this.tpdOff = false;
    }

    _isUsable() {
        if (Lib.SESSION_TYPE.indexOf('wayland') !== -1) {
            logging('_isUsable(): ignoring synclient on wayland');
            return false;
        }

        if (!USE_SYNCLIENT) {
            logging('_isUsable(): synclient manually disabled');
            return false;
        }

        let comp = Lib.executeCmdSync('synclient -l');
        if ((comp[1] === undefined) || (comp[0] === false)) {
            logging('_isUsable(): synclient not found');
            return false;
        } else if (comp[1].includes("Couldn't find synaptics properties")) {
            logging('_isUsable(): no properties found');
            return false;
        } else if (comp[1].includes('TouchpadOff')) {
            logging('_isUsable(): synclient found');
            return true;
        }

        logging('_isUsable(): unknown situation - Return false');
        return false;
    }

    _disable() {
        if (this.isUsable) {
            logging('_disable()');
            this.tpdOff = !!Lib.executeCmdAsync('synclient TouchpadOff=1');
        }
    }

    _enable() {
        if (this.isUsable) {
            logging('_enable()');
            this.tpdOff = !!Lib.executeCmdAsync('synclient TouchpadOff=0');
        }
    }

    _switch(state) {
        logging(`_switch: ${state}`);
        if (state) {
            return this._enable();
        } else {
            return this._disable();
        }
    }
};


/* exported Synclient */