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+/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
+ *
+ * Copyright (C) 2012 Canonical Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Michael Terry <michael.terry@canonical.com>
+ */
+
+public class SessionPrompt : PromptBox
+{
+ public string session { get; construct; }
+ public string default_session { get; construct; }
+
+ public SessionPrompt (string id, string? session, string? default_session)
+ {
+ Object (id: id, session: session, default_session: default_session);
+ }
+
+ private ToggleBox box;
+
+ construct
+ {
+ label = _("Select desktop environment");
+ name_label.vexpand = false;
+
+ box = new ToggleBox (default_session, session);
+
+ if (UnityGreeter.singleton.test_mode)
+ {
+ box.add_item ("gnome", "GNOME", SessionList.get_badge ("gnome"));
+ box.add_item ("kde", "KDE", SessionList.get_badge ("kde"));
+ box.add_item ("ubuntu", "Ubuntu", SessionList.get_badge ("ubuntu"));
+ }
+ else
+ {
+ foreach (var session in LightDM.get_sessions ())
+ {
+ debug ("Adding session %s (%s)", session.key, session.name);
+ box.add_item (session.key, session.name, SessionList.get_badge (session.key));
+ }
+ }
+
+ box.notify["selected-key"].connect (selected_cb);
+ box.show ();
+
+ attach_item (box);
+ }
+
+ private void selected_cb ()
+ {
+ respond ({ box.selected_key });
+ }
+}
+
+public class SessionList : GreeterList
+{
+ public signal void session_clicked (string session);
+ public string session { get; construct; }
+ public string default_session { get; construct; }
+
+ private SessionPrompt prompt;
+
+ public SessionList (Background bg, MenuBar mb, string? session, string? default_session)
+ {
+ Object (background: bg, menubar: mb, session: session, default_session: default_session);
+ }
+
+ construct
+ {
+ prompt = add_session_prompt ("session");
+ }
+
+ private SessionPrompt add_session_prompt (string id)
+ {
+ var e = new SessionPrompt (id, session, default_session);
+ e.respond.connect ((responses) => { session_clicked (responses[0]); });
+ add_entry (e);
+ return e;
+ }
+
+ protected override void add_manual_entry () {}
+ public override void show_authenticated (bool successful = true) {}
+
+ private static string? get_badge_name (string session)
+ {
+ switch (session)
+ {
+ case "ubuntu":
+ case "ubuntu-2d":
+ return "ubuntu_badge.png";
+ case "gnome-classic":
+ case "gnome-flashback-compiz":
+ case "gnome-flashback":
+ case "gnome-fallback-compiz":
+ case "gnome-fallback":
+ case "gnome-shell":
+ case "gnome":
+ return "gnome_badge.png";
+ case "kde":
+ case "kde-plasma":
+ return "kde_badge.png";
+ case "xterm":
+ return "recovery_console_badge.png";
+ case "remote-login":
+ return "remote_login_help.png";
+ default:
+ return null;
+ }
+ }
+
+ private static HashTable<string, Gdk.Pixbuf> badges; /* cache of badges */
+ public static Gdk.Pixbuf? get_badge (string session)
+ {
+ var name = get_badge_name (session);
+
+ if (name == null)
+ {
+ /* Not a known name, but let's see if we have a custom badge before
+ giving up entirely and using the unknown badget. */
+ var maybe_name = "custom_%s_badge.png".printf (session);
+ var maybe_path = Path.build_filename (Config.PKGDATADIR, maybe_name, null);
+ if (FileUtils.test (maybe_path, FileTest.EXISTS))
+ name = maybe_name;
+ else
+ name = "unknown_badge.png";
+ }
+
+ if (badges == null)
+ badges = new HashTable<string, Gdk.Pixbuf> (str_hash, str_equal);
+
+ var pixbuf = badges.lookup (name);
+ if (pixbuf == null)
+ {
+ try
+ {
+ pixbuf = new Gdk.Pixbuf.from_file (Path.build_filename (Config.PKGDATADIR, name, null));
+ badges.insert (name, pixbuf);
+ }
+ catch (Error e)
+ {
+ debug ("Error loading badge %s: %s", name, e.message);
+ }
+ }
+
+ return pixbuf;
+ }
+}