49 lines
1.3 KiB
TypeScript
49 lines
1.3 KiB
TypeScript
import GObject, { register, property } from "astal/gobject";
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import { monitorFile, readFileAsync } from "astal/file";
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import { exec, execAsync } from "astal/process";
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const get = (args: string) => Number(exec(`brightnessctl ${args}`));
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const screen = exec(`bash -c "ls -w1 /sys/class/backlight | head -1"`);
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@register({ GTypeName: "Brightness" })
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export default class Brightness extends GObject.Object {
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static instance: Brightness;
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static get_default() {
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if (!this.instance) this.instance = new Brightness();
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return this.instance;
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}
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#screenMax = get("max");
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#screen = get("get") / (this.#screenMax || 1);
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@property(Number)
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get screen() {
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return this.#screen;
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}
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set screen(percent) {
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if (percent < 0) percent = 0;
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if (percent > 1) percent = 1;
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execAsync(`brightnessctl set ${Math.floor(percent * 100)}% -q`).then(
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() => {
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this.#screen = percent;
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this.notify("screen");
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},
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);
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}
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constructor() {
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super();
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const screenPath = `/sys/class/backlight/${screen}/brightness`;
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monitorFile(screenPath, async (f) => {
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const value = await readFileAsync(f);
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this.#screen = Number(value) / this.#screenMax;
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this.notify("screen");
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});
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}
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}
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