gnome-shell/js/ui/environment.js
Giovanni Campagna 1f87eb4157 Environment: don't fail in toString()
Some objects have a resolve hooks that throw exceptions, so just
checking "'actor' in object" can fail. In that case we should catch
the exception and return the standard toString() value, or the
object cannot be inspected from the looking glass.

https://bugzilla.gnome.org/show_bug.cgi?id=671410
2012-03-18 02:35:53 +01:00

91 lines
2.9 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
imports.gi.versions.Clutter = '1.0';
imports.gi.versions.Gio = '2.0';
imports.gi.versions.Gdk = '3.0';
imports.gi.versions.GdkPixbuf = '2.0';
imports.gi.versions.Gtk = '3.0';
const Clutter = imports.gi.Clutter;;
const Gettext = imports.gettext;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
// We can't import shell JS modules yet, because they may have
// variable initializations, etc, that depend on init() already having
// been run.
// "monkey patch" in some varargs ClutterContainer methods; we need
// to do this per-container class since there is no representation
// of interfaces in Javascript
function _patchContainerClass(containerClass) {
// This one is a straightforward mapping of the C method
containerClass.prototype.child_set = function(actor, props) {
let meta = this.get_child_meta(actor);
for (let prop in props)
meta[prop] = props[prop];
};
// clutter_container_add() actually is a an add-many-actors
// method. We conveniently, but somewhat dubiously, take the
// this opportunity to make it do something more useful.
containerClass.prototype.add = function(actor, props) {
this.add_actor(actor);
if (props)
this.child_set(actor, props);
};
}
function init() {
// Add some bindings to the global JS namespace; (gjs keeps the web
// browser convention of having that namespace be called 'window'.)
window.global = Shell.Global.get();
window._ = Gettext.gettext;
window.C_ = Gettext.pgettext;
window.ngettext = Gettext.ngettext;
// Miscellaneous monkeypatching
_patchContainerClass(St.BoxLayout);
_patchContainerClass(St.Table);
Clutter.Actor.prototype.toString = function() {
return St.describe_actor(this);
};
let origToString = Object.prototype.toString;
Object.prototype.toString = function() {
let base = origToString.call(this);
try {
if ('actor' in this && this.actor instanceof Clutter.Actor)
return base.replace(/\]$/, ' delegate for ' + this.actor.toString().substring(1));
else
return base;
} catch(e) {
return base;
}
};
// Work around https://bugzilla.mozilla.org/show_bug.cgi?id=508783
Date.prototype.toLocaleFormat = function(format) {
return Shell.util_format_date(format, this.getTime());
};
let slowdownEnv = GLib.getenv('GNOME_SHELL_SLOWDOWN_FACTOR');
if (slowdownEnv) {
let factor = parseFloat(slowdownEnv);
if (!isNaN(factor) && factor > 0.0)
St.set_slow_down_factor(factor);
}
// OK, now things are initialized enough that we can import shell JS
const Format = imports.misc.format;
const Tweener = imports.ui.tweener;
Tweener.init();
String.prototype.format = Format.format;
}