nixos-configs/devices/wim/config/ags/js/misc/persist.js

53 lines
1.4 KiB
JavaScript

import { execAsync, readFileAsync, timeout } from 'resource:///com/github/Aylur/ags/utils.js';
const { get_home_dir } = imports.gi.GLib;
/**
* @param {{
* name: string
* gobject: typeof imports.gi.GObject
* prop: string
* condition?: boolean|string // if string, compare following props to this
* whenTrue?: boolean|string
* whenFalse?: boolean|string
* signal?: string
* }} o
*/
export default ({
name,
gobject,
prop,
condition = true,
whenTrue = condition,
whenFalse = false,
signal = 'changed',
}) => {
const cacheFile = `${get_home_dir()}/.cache/ags/.${name}`;
const stateCmd = () => ['bash', '-c',
`echo ${gobject[prop] === condition} > ${cacheFile}`];
const monitorState = () => {
gobject.connect(signal, () => {
execAsync(stateCmd()).catch(print);
});
};
readFileAsync(cacheFile)
.then((content) => {
// JSON.parse was the only way I found to reliably
// convert a string of 'true' or 'false' into a bool
gobject[prop] = JSON.parse(content) ? whenTrue : whenFalse;
timeout(1000, () => {
monitorState();
});
})
.catch(() => {
execAsync(stateCmd())
.then(() => {
monitorState();
})
.catch(print);
});
};