gnome-shell/js/ui/environment.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Config = imports.misc.config;
imports.gi.versions.Clutter = Config.LIBMUTTER_API_VERSION;
imports.gi.versions.Gio = '2.0';
imports.gi.versions.GdkPixbuf = '2.0';
imports.gi.versions.Gtk = '3.0';
imports.gi.versions.TelepathyGLib = '0.12';
imports.gi.versions.TelepathyLogger = '0.2';
const { Clutter, GLib, Shell, St } = imports.gi;
const Gettext = imports.gettext;
// 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 _patchLayoutClass(layoutClass, styleProps) {
if (styleProps)
layoutClass.prototype.hookup_style = function(container) {
container.connect('style-changed', () => {
let node = container.get_theme_node();
for (let prop in styleProps) {
let [found, length] = node.lookup_length(styleProps[prop], false);
if (found)
this[prop] = length;
}
});
};
layoutClass.prototype.child_set = function(actor, props) {
let meta = this.get_child_meta(actor.get_parent(), actor);
for (let prop in props)
meta[prop] = props[prop];
};
}
function _loggingFunc(...args) {
let fields = { 'MESSAGE': args.join(', ') };
let domain = "GNOME Shell";
// If the caller is an extension, add it as metadata
let extension = imports.misc.extensionUtils.getCurrentExtension();
if (extension != null) {
domain = extension.metadata.name;
fields['GNOME_SHELL_EXTENSION_UUID'] = extension.uuid;
fields['GNOME_SHELL_EXTENSION_NAME'] = extension.metadata.name;
}
GLib.log_structured(domain, GLib.LogLevelFlags.LEVEL_MESSAGE, fields);
}
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.log = _loggingFunc;
window._ = Gettext.gettext;
window.C_ = Gettext.pgettext;
window.ngettext = Gettext.ngettext;
window.N_ = s => s;
// Miscellaneous monkeypatching
_patchContainerClass(St.BoxLayout);
_patchLayoutClass(Clutter.TableLayout, { row_spacing: 'spacing-rows',
column_spacing: 'spacing-columns' });
_patchLayoutClass(Clutter.GridLayout, { row_spacing: 'spacing-rows',
column_spacing: 'spacing-columns' });
_patchLayoutClass(Clutter.BoxLayout, { spacing: 'spacing' });
Clutter.Actor.prototype.toString = function() {
return St.describe_actor(this);
};
// Deprecation warning for former JS classes turned into an actor subclass
Object.defineProperty(Clutter.Actor.prototype, 'actor', {
get() {
let klass = this.constructor.name;
let { stack } = new Error();
log(`Usage of object.actor is deprecated for ${klass}\n${stack}`);
return 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.format;
const Tweener = imports.ui.tweener;
Tweener.init();
String.prototype.format = Format.format;
}