retrozinndev
43 lines
1.7 KiB
TypeScript
43 lines
1.7 KiB
TypeScript
import { exec, execAsync, GObject, monitorFile, readFileAsync, register, signal } from "astal";
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import { Connectable } from "astal/binding";
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/** !!TODO!! Needs more work and testing
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* I(retrozinndev) don't have a monitor that has software-controlled brightness :(
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*/
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@register({ GTypeName: "Brightness" })
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class Brightness extends GObject.Object implements Connectable {
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private readonly backlight: string|undefined;
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private max: number;
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private brightness: number;
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@signal(Number)
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declare brightnessChanged: (value: number) => void;
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constructor(backlightDevice?: string) {
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super();
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this.backlight = backlightDevice || "intel_backlight";
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this.max = Number.parseInt(exec(`brightnessctl -d ${backlightDevice} max`))
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this.brightness = Number.parseInt(exec(`brightnessctl -d ${backlightDevice} get`))
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readFileAsync(`/sys/class/backlight/${backlightDevice}/brightness`).catch(() => {
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throw new Error(`Couldn't find backlight ${backlightDevice}`);
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});
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monitorFile(`/sys/class/backlight/${backlightDevice}/brightness`, async () => {
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this.brightness = Number.parseInt(await execAsync(`brightnessctl -d ${backlightDevice} get`));
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this.max = Number.parseInt(await execAsync(`brightnessctl -d ${backlightDevice} max`));
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this.emit("brightness-changed", this.brightness);
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});
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}
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public setBrightness(newBrightness: number): void {
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execAsync(`brightnessctl -d ${this.backlight} set ${newBrightness || this.brightness}`).catch(() => {
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throw new Error(`Couldn't set brightness of backlight ${this.backlight}`);
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});
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this.emit("brightness-changed", newBrightness);
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}
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}
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