Split modules into different files

src/modules/Themer.js

@@ -0,0 +1,51 @@
+/*
+Night Theme Switcher Gnome Shell extension
+
+Copyright (C) 2020 Romain Vigier
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http s ://www.gnu.org/licenses/>.
+*/
+
+const { extensionUtils } = imports.misc;
+const { Gio } = imports.gi;
+
+const Me = extensionUtils.getCurrentExtension();
+const config = Me.imports.config;
+
+
+var Themer = class {
+
+	constructor() {
+		this.gsettings = new Gio.Settings({ schema: config.GSETTINGS_SCHEMA });
+	}
+
+	get current() {
+		return this.gsettings.get_string(config.GSETTINGS_PROPERTY);
+	}
+
+	set current(theme) {
+		if ( theme === this.current ) return;
+		this.gsettings.set_string(config.GSETTINGS_PROPERTY, theme);
+	}
+
+	listen(callback) {
+		this.connect = this.gsettings.connect('changed::' + config.GSETTINGS_PROPERTY, callback);
+	}
+
+	stop_listening() {
+		if ( this.gsettings && this.connect ){
+			this.gsettings.disconnect(this.connect);
+		}
+	}
+
+}