gnome-shell/js/ui/shellDBus.js
Colin Walters 7c796b2d2a [shellDBus] Avoid sending undefined over DBus
DBus doesn't have a notion of null/undefined, so do the lame
thing and return the empty string.
2009-11-13 12:45:46 -05:00

76 lines
1.9 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const DBus = imports.dbus;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const Mainloop = imports.mainloop;
const Main = imports.ui.main;
const GnomeShellIface = {
name: "org.gnome.Shell",
methods: [{ name: "Eval",
inSignature: "s",
outSignature: "bs"
}
],
signals: [],
properties: [{ name: "OverviewActive",
signature: "b",
access: "readwrite" }]
};
function GnomeShell() {
this._init();
}
GnomeShell.prototype = {
_init: function() {
DBus.session.exportObject('/org/gnome/Shell', this);
},
/**
* Eval:
* @code: A string containing JavaScript code
*
* This function executes arbitrary code in the main
* loop, and returns a boolean success and
* JSON representation of the object as a string.
*
* If evaluation completes without throwing an exception,
* then the return value will be [true, JSON.stringify(result)].
* If evaluation fails, then the return value will be
* [false, JSON.stringify(exception)];
*
*/
Eval: function(code) {
let returnValue;
let success;
try {
returnValue = JSON.stringify(eval(code));
// A hack; DBus doesn't have null/undefined
if (returnValue == undefined)
returnValue = "";
success = true;
} catch (e) {
returnValue = JSON.stringify(e);
success = false;
}
return [success, returnValue];
},
get OverviewActive() {
return Main.overview.visible;
},
set OverviewActive(visible) {
if (visible)
Main.overview.show();
else
Main.overview.hide();
}
};
DBus.conformExport(GnomeShell.prototype, GnomeShellIface);