metadata.json
{"author": "sonichy","description": "Display uptime, cpu, memory, upload, download on GNOME taskbar.","name": "CMUD","shell-version": [ "45", "46", "47", "48" ],"url": "https://github.com/sonichy/GNOME_extension","uuid": "CMUD@sonichy","version": 3
}extension.js
import GLib from "gi://GLib";
import Gio from "gi://Gio";
import St from 'gi://St';
import Clutter from "gi://Clutter";import {Extension} from 'resource:///org/gnome/shell/extensions/extension.js';
import * as Main from 'resource:///org/gnome/shell/ui/main.js';
import * as PanelMenu from 'resource:///org/gnome/shell/ui/panelMenu.js';
import * as PopupMenu from 'resource:///org/gnome/shell/ui/popupMenu.js';var db0 = 0, ub0 = 0, tt0 = 0, idle0 = 0, mp, cp;export default class CMUDExtension extends Extension {enable() {// Create a panel buttonthis._indicator = new PanelMenu.Button(0.0, this.metadata.name, false);var box = new St.BoxLayout();this._indicator.add_child(box);var area_mem = new St.DrawingArea();area_mem.width = 3;area_mem.height = this._indicator.height;area_mem.connect('repaint', this.onRepaint_mem);box.add_child(area_mem);var label = new St.Label({ text: '↑ 0KB/s\n↓ 0KB/s', y_align: Clutter.ActorAlign.CENTER });label.set_style('text-align:center; font-family:Noto Mono');box.add_child(label);var area_cpu = new St.DrawingArea();area_cpu.width = 3;area_cpu.height = this._indicator.height;area_cpu.connect('repaint', this.onRepaint_cpu);box.add_child(area_cpu);// Add the indicator to the panelMain.panel.addToStatusArea(this.uuid, this._indicator);const menuItem = new PopupMenu.PopupMenuItem('');this._indicator.menu.addMenuItem(menuItem);this._timeout = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 1, () => {var net = this.net();label.set_text('↑' + this.B2G(net.ubs) + '/s\n↓' + this.B2G(net.dbs) + '/s');this.mem();area_mem.queue_repaint();this.cpu();area_cpu.queue_repaint();var s = 'Uptime: ' + this.uptime() + '\nCPU: ' + cp + '%\nMem: ' + this.mem() + '\nUp: ' + this.B2G(net.ub) + '\nDown: ' + this.B2G(net.db);menuItem.label.text = s;// Run as loop, not once.return GLib.SOURCE_CONTINUE;});}disable() {if (this._timeout) {GLib.source_remove(this._timeout);this._timeout = null;}this._indicator?.destroy();this._indicator = null; }uptime() {const file = Gio.File.new_for_path('/proc/uptime');const [, contents, etag] = file.load_contents(null);var t = contents.toString().split(' '); var tt = Number(t[0]);var d = 0;if (tt > 86400) {d = tt / 86400;tt -= d * 86400;}var ds = "";if (d > 0)ds = d + "day";var h = ~~(tt/3600);if (h < 10)h = '0' + h;var m = ~~(tt%3600/60);if (m < 10)m = '0' + m;var s = ~~(tt%3600%60);if (s < 10)s = '0' + s;var hms = ds + h + ':' + m + ':' + s;return hms;}net() {const file = Gio.File.new_for_path('/proc/net/dev');const [, contents, etag] = file.load_contents(null);var l = contents.toString().trim().split('\n'); var db = 0, ub = 0; for (var i=2; i<l.length; i++) {var la = l[i].trim().split(/\s+/); db += Number(la[1]);ub += Number(la[9]); } var dbs = db - db0;var ubs = ub - ub0;db0 = db;ub0 = ub;return {db, ub, dbs, ubs};}mem() {const file = Gio.File.new_for_path('/proc/meminfo');const [, contents, etag] = file.load_contents(null);var s = contents.toString().split('\n'); var MT = s[0].split(/\s+/);var MA = s[2].split(/\s+/);var mt = Number(MT[1]);var ma = Number(MA[1]);var mu = mt - ma;mp = ~~(mu / mt * 100);var m = this.B2G(mu*1024) + ' / '+ this.B2G(mt*1024) + ' = ' + mp + '%';return m;}cpu() {const file = Gio.File.new_for_path('/proc/stat');const [, contents, etag] = file.load_contents(null);var s = contents.toString().split('\n');var ca = s[0].split(/\s+/);var tt = 0;for (var i=1; i<ca.length; i++) { tt += Number(ca[i]);} var idle = Number(ca[4]);cp = ~~(((tt - tt0) - (idle - idle0)) * 100 / (tt - tt0));tt0 = tt;idle0 = idle;}B2G(b) {var s = '';if (b > 999999999) {b = b / (1024 * 1024 * 1024);if (b >= 100) {s = ' ' + b.toFixed(0) + 'GB';} else if (b >= 10) {s = b.toFixed(1) + 'GB';} else {s = b.toFixed(2) + 'GB';}} else {if (b > 999999) {b = b / (1024 * 1024);if (b >= 100) {s = ' ' + b.toFixed(0) + 'MB';} else if (b >= 10) {s = b.toFixed(1) + 'MB';} else {s = b.toFixed(2) + 'MB';}} else {if (b > 999) {b = b / 1024;if (b >= 100) {s = ' ' + b.toFixed(0) + 'KB';} else if (b >= 10) {s = ' ' + b.toFixed(0) + 'KB';} else {s = ' ' + b.toFixed(0) + 'KB';}} else {if (b >= 100) {s = ' ' + b + ' B';} else if (b >= 10) {s = ' ' + b + ' B';} else {s = ' ' + b + ' B';}}}}return s;}onRepaint_mem(area) {let ctx = area.get_context();ctx.setLineWidth(3);if (mp >= 90)ctx.setSourceRGBA(1, 0, 0, 1);elsectx.setSourceRGBA(1, 1, 1, 1);ctx.moveTo(0, area.height);ctx.lineTo(0, area.height * (100 - mp) / 100);ctx.stroke();ctx.$dispose();}onRepaint_cpu(area) {let ctx = area.get_context();ctx.setLineWidth(3); if (cp >= 90)ctx.setSourceRGBA(1, 0, 0, 1);elsectx.setSourceRGBA(1, 1, 1, 1);ctx.moveTo(0, area.height);ctx.lineTo(0, area.height * (100 - cp) / 100);ctx.stroke();ctx.$dispose();}}CMUD - GNOME Shell Extensions