91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
/* extension.js
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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/* exported init */
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'use strict';
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const { Gio, GLib, Meta } = imports.gi;
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const Main = imports.ui.main;
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const EvalGjsIface =
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'<node>' +
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' <interface name="dev.ramottamado.EvalGjs">' +
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' <method name="Eval">' +
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' <arg type="s" direction="in" name="code" />' +
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' <arg type="b" direction="out" name="success"/>' +
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' <arg type="s" direction="out" name="returnValue"/>' +
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' </method>' +
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' </interface>' +
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'</node>';
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class EvalGjs {
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constructor() {
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this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(EvalGjsIface, this);
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}
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/**
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* Eval:
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* @param {string} code: A string containing JavaScript code
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* @returns {Array}
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*
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* This function executes arbitrary code in the main
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* loop, and returns a boolean success and
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* JSON representation of the object as a string.
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*
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* If evaluation completes without throwing an exception,
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* then the return value will be [true, JSON.stringify(result)].
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* If evaluation fails, then the return value will be
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* [false, JSON.stringify(exception)];
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*
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*/
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Eval(code) {
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let returnValue;
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let success;
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try {
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returnValue = JSON.stringify(eval(code));
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// A hack; DBus doesn't have null/undefined
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if (returnValue == undefined)
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returnValue = '';
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success = true;
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}
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catch (e) {
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returnValue = `${e}`;
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success = false;
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}
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return [success, returnValue];
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}
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enable() {
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this._dbusImpl.export(Gio.DBus.session, '/dev/ramottamado/EvalGjs');
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}
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disable() {
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if (this._dbusImpl) this._dbusImpl.unexport();
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}
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}
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function init() {
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return new EvalGjs();
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}
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