2 * Copyright (C) 2012-2013 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This program is free software: you can redistribute it and/or modify it under
6 * the terms of the GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option) any later
8 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
15 #include <glib/gstdio.h>
17 #include "seat-unity.h"
18 #include "configuration.h"
19 #include "unity-system-compositor.h"
20 #include "x-server-local.h"
21 #include "mir-server.h"
25 struct SeatUnityPrivate
27 /* System compositor */
28 UnitySystemCompositor *compositor;
30 /* X server being used for XDMCP */
31 XServerLocal *xdmcp_x_server;
33 /* Next Mir ID to use for a Mir sessions, X server and greeters */
35 gint next_x_server_id;
38 /* The currently visible session */
39 Session *active_session;
40 DisplayServer *active_display_server;
43 G_DEFINE_TYPE (SeatUnity, seat_unity, SEAT_TYPE);
45 static XServerLocal *create_x_server (Seat *seat);
48 seat_unity_setup (Seat *seat)
50 seat_set_supports_multi_session (seat, TRUE);
51 SEAT_CLASS (seat_unity_parent_class)->setup (seat);
55 check_stopped (SeatUnity *seat)
57 if (!seat->priv->compositor && !seat->priv->xdmcp_x_server)
58 SEAT_CLASS (seat_unity_parent_class)->stop (SEAT (seat));
62 xdmcp_x_server_stopped_cb (DisplayServer *display_server, Seat *seat)
64 l_debug (seat, "XDMCP X server stopped");
66 g_signal_handlers_disconnect_matched (SEAT_UNITY (seat)->priv->xdmcp_x_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
67 SEAT_UNITY (seat)->priv->xdmcp_x_server = NULL;
69 g_object_unref (display_server);
71 if (seat_get_is_stopping (seat))
72 check_stopped (SEAT_UNITY (seat));
78 compositor_ready_cb (UnitySystemCompositor *compositor, SeatUnity *seat)
80 const gchar *xdmcp_manager = NULL;
82 l_debug (seat, "Compositor ready");
84 /* If running as an XDMCP client then just start an X server */
85 xdmcp_manager = seat_get_string_property (SEAT (seat), "xdmcp-manager");
88 const gchar *key_name = NULL;
91 seat->priv->xdmcp_x_server = create_x_server (SEAT (seat));
92 x_server_local_set_xdmcp_server (seat->priv->xdmcp_x_server, xdmcp_manager);
93 port = seat_get_integer_property (SEAT (seat), "xdmcp-port");
95 x_server_local_set_xdmcp_port (seat->priv->xdmcp_x_server, port);
96 key_name = seat_get_string_property (SEAT (seat), "xdmcp-key");
102 GError *error = NULL;
104 path = g_build_filename (config_get_directory (config_get_instance ()), "keys.conf", NULL);
106 keys = g_key_file_new ();
107 result = g_key_file_load_from_file (keys, path, G_KEY_FILE_NONE, &error);
109 l_debug (seat, "Error getting key %s", error->message);
110 g_clear_error (&error);
116 if (g_key_file_has_key (keys, "keyring", key_name, NULL))
117 key = g_key_file_get_string (keys, "keyring", key_name, NULL);
119 l_debug (seat, "Key %s not defined", key_name);
122 x_server_local_set_xdmcp_key (seat->priv->xdmcp_x_server, key);
127 g_key_file_free (keys);
130 g_signal_connect (seat->priv->xdmcp_x_server, DISPLAY_SERVER_SIGNAL_STOPPED, G_CALLBACK (xdmcp_x_server_stopped_cb), seat);
131 if (!display_server_start (DISPLAY_SERVER (seat->priv->xdmcp_x_server)))
132 seat_stop (SEAT (seat));
135 SEAT_CLASS (seat_unity_parent_class)->start (SEAT (seat));
139 compositor_stopped_cb (UnitySystemCompositor *compositor, SeatUnity *seat)
141 l_debug (seat, "Compositor stopped");
143 g_clear_object (&seat->priv->compositor);
145 if (seat_get_is_stopping (SEAT (seat)))
146 check_stopped (seat);
148 seat_stop (SEAT (seat));
152 seat_unity_start (Seat *seat)
157 /* Replace Plymouth if it is running */
158 if (plymouth_get_is_active () && plymouth_has_active_vt ())
160 gint active_vt = vt_get_active ();
161 if (active_vt >= vt_get_min ())
164 plymouth_quit (TRUE);
167 l_debug (seat, "Plymouth is running on VT %d, but this is less than the configured minimum of %d so not replacing it", active_vt, vt_get_min ());
169 if (plymouth_get_is_active ())
170 plymouth_quit (FALSE);
172 vt = vt_can_multi_seat () ? vt_get_unused () : 0;
175 l_debug (seat, "Failed to get a VT to run on");
179 timeout = seat_get_integer_property (SEAT (seat), "unity-compositor-timeout");
183 SEAT_UNITY (seat)->priv->compositor = unity_system_compositor_new ();
184 g_signal_connect (SEAT_UNITY (seat)->priv->compositor, DISPLAY_SERVER_SIGNAL_READY, G_CALLBACK (compositor_ready_cb), seat);
185 g_signal_connect (SEAT_UNITY (seat)->priv->compositor, DISPLAY_SERVER_SIGNAL_STOPPED, G_CALLBACK (compositor_stopped_cb), seat);
186 unity_system_compositor_set_command (SEAT_UNITY (seat)->priv->compositor, seat_get_string_property (SEAT (seat), "unity-compositor-command"));
187 unity_system_compositor_set_vt (SEAT_UNITY (seat)->priv->compositor, vt);
188 unity_system_compositor_set_timeout (SEAT_UNITY (seat)->priv->compositor, timeout);
190 return display_server_start (DISPLAY_SERVER (SEAT_UNITY (seat)->priv->compositor));
193 static XServerLocal *
194 create_x_server (Seat *seat)
196 XServerLocal *x_server;
197 const gchar *command = NULL, *layout = NULL, *config_file = NULL;
201 l_debug (seat, "Starting X server on Unity compositor");
203 x_server = x_server_local_new ();
205 command = seat_get_string_property (seat, "xmir-command");
206 /* Fall back to using X if Xmir is not available as this was the previous way XMir worked */
207 if (strcmp (command, "Xmir") == 0 && !g_find_program_in_path ("Xmir"))
208 command = seat_get_string_property (seat, "xserver-command");
209 x_server_local_set_command (x_server, command);
211 id = g_strdup_printf ("x-%d", SEAT_UNITY (seat)->priv->next_x_server_id);
212 SEAT_UNITY (seat)->priv->next_x_server_id++;
213 x_server_local_set_mir_id (x_server, id);
214 x_server_local_set_mir_socket (x_server, unity_system_compositor_get_socket (SEAT_UNITY (seat)->priv->compositor));
217 layout = seat_get_string_property (seat, "xserver-layout");
219 x_server_local_set_layout (x_server, layout);
221 x_server_local_set_xdg_seat (x_server, seat_get_name (seat));
223 config_file = seat_get_string_property (seat, "xserver-config");
225 x_server_local_set_config (x_server, config_file);
227 allow_tcp = seat_get_boolean_property (seat, "xserver-allow-tcp");
228 x_server_local_set_allow_tcp (x_server, allow_tcp);
233 static DisplayServer *
234 create_mir_server (Seat *seat)
236 MirServer *mir_server;
238 mir_server = mir_server_new ();
239 mir_server_set_parent_socket (mir_server, unity_system_compositor_get_socket (SEAT_UNITY (seat)->priv->compositor));
241 return DISPLAY_SERVER (mir_server);
244 static DisplayServer *
245 seat_unity_create_display_server (Seat *seat, Session *session)
247 const gchar *session_type;
249 session_type = session_get_session_type (session);
250 if (strcmp (session_type, "x") == 0)
251 return DISPLAY_SERVER (create_x_server (seat));
252 else if (strcmp (session_type, "mir") == 0)
253 return create_mir_server (seat);
256 l_warning (seat, "Can't create unsupported display server '%s'", session_type);
262 seat_unity_create_greeter_session (Seat *seat)
264 Greeter *greeter_session;
268 greeter_session = SEAT_CLASS (seat_unity_parent_class)->create_greeter_session (seat);
269 session_set_env (SESSION (greeter_session), "XDG_SEAT", seat_get_name (seat));
271 id = g_strdup_printf ("greeter-%d", SEAT_UNITY (seat)->priv->next_greeter_id);
272 SEAT_UNITY (seat)->priv->next_greeter_id++;
273 session_set_env (SESSION (greeter_session), "MIR_SERVER_NAME", id);
276 vt = display_server_get_vt (DISPLAY_SERVER (SEAT_UNITY (seat)->priv->compositor));
279 gchar *value = g_strdup_printf ("%d", vt);
280 session_set_env (SESSION (greeter_session), "XDG_VTNR", value);
284 return greeter_session;
288 seat_unity_create_session (Seat *seat)
294 session = SEAT_CLASS (seat_unity_parent_class)->create_session (seat);
295 session_set_env (session, "XDG_SEAT", seat_get_name (seat));
297 id = g_strdup_printf ("session-%d", SEAT_UNITY (seat)->priv->next_session_id);
298 SEAT_UNITY (seat)->priv->next_session_id++;
299 session_set_env (session, "MIR_SERVER_NAME", id);
302 vt = display_server_get_vt (DISPLAY_SERVER (SEAT_UNITY (seat)->priv->compositor));
305 gchar *value = g_strdup_printf ("%d", vt);
306 session_set_env (SESSION (session), "XDG_VTNR", value);
314 seat_unity_set_active_session (Seat *seat, Session *session)
316 DisplayServer *display_server;
318 if (session == SEAT_UNITY (seat)->priv->active_session)
320 SEAT_UNITY (seat)->priv->active_session = g_object_ref (session);
322 display_server = session_get_display_server (session);
323 if (SEAT_UNITY (seat)->priv->active_display_server != display_server)
325 const gchar *id = NULL;
327 SEAT_UNITY (seat)->priv->active_display_server = g_object_ref (display_server);
329 if (IS_X_SERVER_LOCAL (display_server))
330 id = x_server_local_get_mir_id (X_SERVER_LOCAL (display_server));
332 id = session_get_env (session, "MIR_SERVER_NAME");
336 l_debug (seat, "Switching to Mir session %s", id);
337 unity_system_compositor_set_active_session (SEAT_UNITY (seat)->priv->compositor, id);
340 l_warning (seat, "Failed to work out session ID");
343 SEAT_CLASS (seat_unity_parent_class)->set_active_session (seat, session);
347 seat_unity_get_active_session (Seat *seat)
349 return SEAT_UNITY (seat)->priv->active_session;
353 seat_unity_set_next_session (Seat *seat, Session *session)
355 DisplayServer *display_server;
356 const gchar *id = NULL;
361 display_server = session_get_display_server (session);
363 if (IS_X_SERVER_LOCAL (display_server))
364 id = x_server_local_get_mir_id (X_SERVER_LOCAL (display_server));
366 id = session_get_env (session, "MIR_SERVER_NAME");
370 l_debug (seat, "Marking Mir session %s as the next session", id);
371 unity_system_compositor_set_next_session (SEAT_UNITY (seat)->priv->compositor, id);
375 l_debug (seat, "Failed to work out session ID to mark");
378 SEAT_CLASS (seat_unity_parent_class)->set_next_session (seat, session);
382 seat_unity_run_script (Seat *seat, DisplayServer *display_server, Process *script)
384 if (IS_X_SERVER_LOCAL (display_server))
386 XServerLocal *x_server;
389 x_server = X_SERVER_LOCAL (display_server);
390 path = x_server_local_get_authority_file_path (x_server);
391 process_set_env (script, "DISPLAY", x_server_get_address (X_SERVER (x_server)));
392 process_set_env (script, "XAUTHORITY", path);
395 SEAT_CLASS (seat_unity_parent_class)->run_script (seat, display_server, script);
399 seat_unity_stop (Seat *seat)
401 /* Stop the compositor first */
402 if (SEAT_UNITY (seat)->priv->compositor)
403 display_server_stop (DISPLAY_SERVER (SEAT_UNITY (seat)->priv->compositor));
405 /* Stop the XDMCP X server first */
406 if (SEAT_UNITY (seat)->priv->xdmcp_x_server)
407 display_server_stop (DISPLAY_SERVER (SEAT_UNITY (seat)->priv->xdmcp_x_server));
409 check_stopped (SEAT_UNITY (seat));
413 seat_unity_init (SeatUnity *seat)
415 seat->priv = G_TYPE_INSTANCE_GET_PRIVATE (seat, SEAT_UNITY_TYPE, SeatUnityPrivate);
419 seat_unity_finalize (GObject *object)
421 SeatUnity *seat = SEAT_UNITY (object);
423 g_clear_object (&seat->priv->compositor);
424 if (seat->priv->xdmcp_x_server)
426 g_signal_handlers_disconnect_matched (seat->priv->xdmcp_x_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
427 g_object_unref (seat->priv->xdmcp_x_server);
429 g_clear_object (&seat->priv->active_session);
430 g_clear_object (&seat->priv->active_display_server);
432 G_OBJECT_CLASS (seat_unity_parent_class)->finalize (object);
436 seat_unity_class_init (SeatUnityClass *klass)
438 GObjectClass *object_class = G_OBJECT_CLASS (klass);
439 SeatClass *seat_class = SEAT_CLASS (klass);
441 object_class->finalize = seat_unity_finalize;
442 seat_class->setup = seat_unity_setup;
443 seat_class->start = seat_unity_start;
444 seat_class->create_display_server = seat_unity_create_display_server;
445 seat_class->create_greeter_session = seat_unity_create_greeter_session;
446 seat_class->create_session = seat_unity_create_session;
447 seat_class->set_active_session = seat_unity_set_active_session;
448 seat_class->get_active_session = seat_unity_get_active_session;
449 seat_class->set_next_session = seat_unity_set_next_session;
450 seat_class->run_script = seat_unity_run_script;
451 seat_class->stop = seat_unity_stop;
453 g_type_class_add_private (klass, sizeof (SeatUnityPrivate));