144 lines
4.4 KiB
JavaScript
144 lines
4.4 KiB
JavaScript
import Hyprland from 'resource:///com/github/Aylur/ags/service/hyprland.js';
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import Service from 'resource:///com/github/Aylur/ags/service.js';
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import * as Utils from 'resource:///com/github/Aylur/ags/utils.js';
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const { exec, execAsync } = Utils;
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import { clamp } from '../modules/.miscutils/mathfuncs.js';
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class BrightnessServiceBase extends Service {
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static {
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Service.register(
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this,
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{ 'screen-changed': ['float'], },
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{ 'screen-value': ['float', 'rw'], },
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);
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}
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_screenValue = 0;
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// the getter has to be in snake_case
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get screen_value() { return this._screenValue; }
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// the setter has to be in snake_case too
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set screen_value(percent) {
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percent = clamp(percent, 0, 1);
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this._screenValue = percent;
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Utils.execAsync(this.setBrightnessCmd(percent))
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.then(() => {
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// signals has to be explicity emitted
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this.emit('screen-changed', percent);
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this.notify('screen-value');
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// or use Service.changed(propName: string) which does the above two
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// this.changed('screen');
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})
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.catch(print);
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}
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// overwriting connectWidget method, lets you
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// change the default event that widgets connect to
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connectWidget(widget, callback, event = 'screen-changed') {
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super.connectWidget(widget, callback, event);
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}
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}
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class BrightnessCtlService extends BrightnessServiceBase {
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static {
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Service.register(this);
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}
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constructor() {
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super();
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const current = Number(exec('brightnessctl g'));
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const max = Number(exec('brightnessctl m'));
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this._screenValue = current / max;
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}
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setBrightnessCmd(percent) {
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return `brightnessctl s ${percent * 100}% -q`;
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}
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}
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class BrightnessDdcService extends BrightnessServiceBase {
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static {
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Service.register(this);
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}
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constructor(busNum) {
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super();
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this._busNum = busNum;
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Utils.execAsync(`ddcutil -b ${this._busNum} getvcp 10 --brief`)
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.then((out) => {
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// only the last line is useful
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out = out.split('\n');
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out = out[out.length - 1];
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out = out.split(' ');
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const current = Number(out[3]);
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const max = Number(out[4]);
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this._screenValue = current / max;
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})
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.catch(print);
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}
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setBrightnessCmd(percent) {
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return `ddcutil -b ${this._busNum} setvcp 10 ${Math.round(percent * 100)}`;
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}
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}
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async function listDdcMonitorsSnBus() {
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let ddcSnBus = {};
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try {
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const out = await Utils.execAsync('ddcutil detect --brief');
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const displays = out.split('\n\n');
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displays.forEach(display => {
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const reg = /^Display \d+/;
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if (!reg.test(display))
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return;
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const lines = display.split('\n');
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const sn = lines[3].split(':')[3];
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const busNum = lines[1].split('/dev/i2c-')[1];
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ddcSnBus[sn] = busNum;
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});
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} catch (err) {
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print(err);
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}
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return ddcSnBus;
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}
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// Service instance
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const numMonitors = Hyprland.monitors.length;
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const service = Array(numMonitors);
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const ddcSnBus = await listDdcMonitorsSnBus();
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for (let i = 0; i < service.length; i++) {
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const monitorName = Hyprland.monitors[i].name;
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const monitorSn = Hyprland.monitors[i].serial;
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const preferredController = userOptions.brightness.controllers[monitorName]
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|| userOptions.brightness.controllers.default || "auto";
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if (preferredController) {
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switch (preferredController) {
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case "brightnessctl":
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service[i] = new BrightnessCtlService();
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break;
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case "ddcutil":
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service[i] = new BrightnessDdcService(ddcSnBus[monitorSn]);
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break;
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case "auto":
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if (monitorSn in ddcSnBus && !!exec(`bash -c 'command -v ddcutil'`))
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service[i] = new BrightnessDdcService(ddcSnBus[monitorSn]);
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else
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service[i] = new BrightnessCtlService();
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break;
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default:
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throw new Error(`Unknown brightness controller ${preferredController}`);
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}
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}
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}
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// make it global for easy use with cli
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globalThis.brightness = service[0];
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// export to use in other modules
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export default service;
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