RandomWallpaperGnome3/randomwallpaper@iflow.space/settings.js

const Lang = imports.lang;
const Glib = imports.gi.GLib;
const Gio = imports.gi.Gio;

const Self = imports.misc.extensionUtils.getCurrentExtension();
const Convenience = Self.imports.convenience;

let Settings = new Lang.Class({
    Name: "Settings",

    _init: function() {
        this._settings = Convenience.getSettings();
    },

    observe: function(key, callback) {
        this._settings.connect('changed::'+key, callback);
    },

    set: function(key, type, value) {
        if (this._settings['set_'+type](key, value)){
            Gio.Settings.sync(); // wait for write
        } else {
            throw "Could not set " + key + " (type: " + type + ") with the value " + value;
        }
    },

    get: function(key, type) {
        return this._settings['get_'+type](key);
    },

    getSourceAdapter: function() {
        return null;
    }
});