gnome-shell/js/extensionPrefs/main.js
Jasper St. Pierre da4238ec68 Synchronize shell startup
The asynchronous nature of extension loading, session loading, and more,
makes the code racy as to what is initialized first, and hard to debug.
Additionally, since gjs is single-threaded, the only code we're running
in a thread anyway is readdir, which is going to be I/O bound, so the
code here is actually likely to be faster.

Drop this in favor of some good old fashioned synchronous loading.
2013-11-04 11:50:20 -05:00

280 lines
8.9 KiB
JavaScript

const Lang = imports.lang;
const Gettext = imports.gettext;
const GLib = imports.gi.GLib;
const GObject = imports.gi.GObject;
const Gio = imports.gi.Gio;
const Gtk = imports.gi.Gtk;
const Pango = imports.gi.Pango;
const Format = imports.format;
const _ = Gettext.gettext;
const Config = imports.misc.config;
const ExtensionUtils = imports.misc.extensionUtils;
const GnomeShellIface = '<node> \
<interface name="org.gnome.Shell.Extensions"> \
<signal name="ExtensionStatusChanged"> \
<arg type="s" name="uuid"/> \
<arg type="i" name="state"/> \
<arg type="s" name="error"/> \
</signal> \
</interface> \
</node>';
const GnomeShellProxy = Gio.DBusProxy.makeProxyWrapper(GnomeShellIface);
function stripPrefix(string, prefix) {
if (string.slice(0, prefix.length) == prefix)
return string.slice(prefix.length);
return string;
}
const Application = new Lang.Class({
Name: 'Application',
_init: function() {
GLib.set_prgname('gnome-shell-extension-prefs');
this.application = new Gtk.Application({
application_id: 'org.gnome.shell.ExtensionPrefs',
flags: Gio.ApplicationFlags.HANDLES_COMMAND_LINE
});
this.application.connect('activate', Lang.bind(this, this._onActivate));
this.application.connect('command-line', Lang.bind(this, this._onCommandLine));
this.application.connect('startup', Lang.bind(this, this._onStartup));
this._extensionPrefsModules = {};
this._extensionIters = {};
this._startupUuid = null;
},
_buildModel: function() {
this._model = new Gtk.ListStore();
this._model.set_column_types([GObject.TYPE_STRING, GObject.TYPE_STRING]);
},
_extensionAvailable: function(uuid) {
let extension = ExtensionUtils.extensions[uuid];
if (!extension)
return false;
if (ExtensionUtils.isOutOfDate(extension))
return false;
if (!extension.dir.get_child('prefs.js').query_exists(null))
return false;
return true;
},
_setExtensionInsensitive: function(layout, cell, model, iter, data) {
let uuid = model.get_value(iter, 0);
cell.set_sensitive(this._extensionAvailable(uuid));
},
_getExtensionPrefsModule: function(extension) {
let uuid = extension.metadata.uuid;
if (this._extensionPrefsModules.hasOwnProperty(uuid))
return this._extensionPrefsModules[uuid];
ExtensionUtils.installImporter(extension);
let prefsModule = extension.imports.prefs;
prefsModule.init(extension.metadata);
this._extensionPrefsModules[uuid] = prefsModule;
return prefsModule;
},
_selectExtension: function(uuid) {
if (!this._extensionAvailable(uuid))
return;
let extension = ExtensionUtils.extensions[uuid];
let widget;
try {
let prefsModule = this._getExtensionPrefsModule(extension);
widget = prefsModule.buildPrefsWidget();
} catch (e) {
widget = this._buildErrorUI(extension, e);
}
// Destroy the current prefs widget, if it exists
if (this._extensionPrefsBin.get_child())
this._extensionPrefsBin.get_child().destroy();
this._extensionPrefsBin.add(widget);
this._extensionSelector.set_active_iter(this._extensionIters[uuid]);
},
_extensionSelected: function() {
let [success, iter] = this._extensionSelector.get_active_iter();
if (!success)
return;
let uuid = this._model.get_value(iter, 0);
this._selectExtension(uuid);
},
_buildErrorUI: function(extension, exc) {
let box = new Gtk.Box({ orientation: Gtk.Orientation.VERTICAL });
let label = new Gtk.Label({
label: _("There was an error loading the preferences dialog for %s:").format(extension.metadata.name)
});
box.add(label);
let errortext = '';
errortext += exc;
errortext += '\n\n';
errortext += 'Stack trace:\n';
// Indent stack trace.
errortext += exc.stack.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
let scroll = new Gtk.ScrolledWindow({ vexpand: true });
let buffer = new Gtk.TextBuffer({ text: errortext });
let textview = new Gtk.TextView({ buffer: buffer });
textview.override_font(Pango.font_description_from_string('monospace'));
scroll.add(textview);
box.add(scroll);
box.show_all();
return box;
},
_buildUI: function(app) {
this._window = new Gtk.ApplicationWindow({ application: app,
window_position: Gtk.WindowPosition.CENTER,
title: _("GNOME Shell Extension Preferences") });
this._window.set_size_request(600, 400);
let vbox = new Gtk.Box({ orientation: Gtk.Orientation.VERTICAL });
this._window.add(vbox);
let toolbar = new Gtk.Toolbar();
toolbar.get_style_context().add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR);
vbox.add(toolbar);
let toolitem;
let label = new Gtk.Label({ label: '<b>' + _("Extension") + '</b>',
use_markup: true });
toolitem = new Gtk.ToolItem({ child: label });
toolbar.add(toolitem);
this._extensionSelector = new Gtk.ComboBox({ model: this._model,
margin_left: 8,
hexpand: true });
this._extensionSelector.get_style_context().add_class(Gtk.STYLE_CLASS_RAISED);
let renderer = new Gtk.CellRendererText();
this._extensionSelector.pack_start(renderer, true);
this._extensionSelector.add_attribute(renderer, 'text', 1);
this._extensionSelector.set_cell_data_func(renderer, Lang.bind(this, this._setExtensionInsensitive));
this._extensionSelector.connect('changed', Lang.bind(this, this._extensionSelected));
toolitem = new Gtk.ToolItem({ child: this._extensionSelector });
toolitem.set_expand(true);
toolbar.add(toolitem);
this._extensionPrefsBin = new Gtk.Frame();
vbox.add(this._extensionPrefsBin);
let label = new Gtk.Label({
label: _("Select an extension to configure using the combobox above."),
vexpand: true
});
this._extensionPrefsBin.add(label);
this._shellProxy = new GnomeShellProxy(Gio.DBus.session, 'org.gnome.Shell', '/org/gnome/Shell');
this._shellProxy.connectSignal('ExtensionStatusChanged', Lang.bind(this, function(proxy, senderName, [uuid, state, error]) {
if (ExtensionUtils.extensions[uuid] !== undefined)
this._scanExtensions();
}));
this._window.show_all();
},
_scanExtensions: function() {
let finder = new ExtensionUtils.ExtensionFinder();
finder.connect('extension-found', Lang.bind(this, this._extensionFound));
finder.scanExtensions();
this._extensionsLoaded();
},
_extensionFound: function(finder, extension) {
let iter = this._model.append();
this._model.set(iter, [0, 1], [extension.uuid, extension.metadata.name]);
this._extensionIters[extension.uuid] = iter;
},
_extensionsLoaded: function() {
if (this._startupUuid && this._extensionAvailable(this._startupUuid))
this._selectExtension(this._startupUuid);
this._startupUuid = null;
},
_onActivate: function() {
this._window.present();
},
_onStartup: function(app) {
this._buildModel();
this._buildUI(app);
this._scanExtensions();
},
_onCommandLine: function(app, commandLine) {
app.activate();
let args = commandLine.get_arguments();
if (args.length) {
let uuid = args[0];
// Strip off "extension:///" prefix which fakes a URI, if it exists
uuid = stripPrefix(uuid, "extension:///");
if (this._extensionAvailable(uuid))
this._selectExtension(uuid);
else
this._startupUuid = uuid;
}
return 0;
}
});
function initEnvironment() {
// Monkey-patch in a "global" object that fakes some Shell utilities
// that ExtensionUtils depends on.
window.global = {
log: function() {
print([].join.call(arguments, ', '));
},
logError: function(s) {
log('ERROR: ' + s);
},
userdatadir: GLib.build_filenamev([GLib.get_user_data_dir(), 'gnome-shell'])
};
String.prototype.format = Format.format;
}
function main(argv) {
initEnvironment();
Gettext.bindtextdomain(Config.GETTEXT_PACKAGE, Config.LOCALEDIR);
Gettext.textdomain(Config.GETTEXT_PACKAGE);
let app = new Application();
app.application.run(argv);
}