settings.js

/* Copyright (C) 2017 Tom Hartill

settings.js - Part of the NetSpeed Plus Gnome Shell Extension.

NetSpeed Plus 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.

NetSpeed Plus 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
NetSpeed Plus; if not, see http://www.gnu.org/licenses/.

An up to date version can also be found at:
https://github.com/Tomha/gnome-shell-extension-netspeed-plus */

const Gio = imports.gi.Gio;
const SchemaSource = imports.gi.Gio.SettingsSchemaSource;

const ExtensionUtils = imports.misc.extensionUtils;

function getSettings() {
  let extension = ExtensionUtils.getCurrentExtension();
  let schema = extension.metadata["settings-schema"];

  let schemaDir = extension.dir.get_child("schema");
  if (!schemaDir.query_exists(null))
    throw new Error(
      "Schema directory " +
        schemaDir +
        " for " +
        extension.metadata.uuid +
        " not found."
    );

  let schemaSrc = SchemaSource.new_from_directory(
    schemaDir.get_path(),
    SchemaSource.get_default(),
    false
  );

  let schemaObj = schemaSrc.lookup(schema, true);
  if (!schemaObj)
    throw new Error(
      "Schema " + schemaDir + " for " + extension.metadata.uuid + " not found."
    );

  return new Gio.Settings({ settings_schema: schemaObj });
}