src/display-server.c

   1 /*
   2  * Copyright (C) 2010-2011 Robert Ancell.
   3  * Author: Robert Ancell <robert.ancell@canonical.com>
   4  *
   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
   9  * license.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "display-server.h"
  15
  16 enum {
  17     READY,
  18     STOPPED,
  19     LAST_SIGNAL
  20 };
  21 static guint signals[LAST_SIGNAL] = { 0 };
  22
  23 struct DisplayServerPrivate
  24 {
  25     /* Unique name for this display server */
  26     gchar *name;
  27
  28     /* TRUE if sessions should be automatically started on this display server */
  29     gboolean start_local_sessions;
  30 };
  31
  32 G_DEFINE_TYPE (DisplayServer, display_server, G_TYPE_OBJECT);
  33
  34 void
  35 display_server_set_name (DisplayServer *server, const gchar *name)
  36 {
  37     g_return_if_fail (server != NULL);
  38     g_free (server->priv->name);
  39     server->priv->name = g_strdup (name);
  40 }
  41
  42 const gchar *
  43 display_server_get_name (DisplayServer *server)
  44 {
  45     g_return_val_if_fail (server != NULL, NULL);
  46     return server->priv->name;
  47 }
  48
  49 void
  50 display_server_set_start_local_sessions (DisplayServer *server, gboolean start_local_sessions)
  51 {
  52     g_return_if_fail (server != NULL);
  53     server->priv->start_local_sessions = start_local_sessions;
  54 }
  55
  56 gboolean
  57 display_server_get_start_local_sessions (DisplayServer *server)
  58 {
  59     g_return_val_if_fail (server != NULL, FALSE);
  60     return server->priv->start_local_sessions;
  61 }
  62
  63 static gboolean
  64 display_server_real_start (DisplayServer *server)
  65 {
  66     g_signal_emit (server, signals[READY], 0);
  67     return TRUE;
  68 }
  69
  70 gboolean
  71 display_server_start (DisplayServer *server)
  72 {
  73     g_return_val_if_fail (server != NULL, FALSE);
  74     return DISPLAY_SERVER_GET_CLASS (server)->start (server);
  75 }
  76
  77 static void
  78 display_server_real_stop (DisplayServer *server)
  79 {
  80     g_signal_emit (server, signals[STOPPED], 0);
  81 }
  82
  83 void
  84 display_server_stop (DisplayServer *server)
  85 {
  86     g_return_if_fail (server != NULL);
  87     DISPLAY_SERVER_GET_CLASS (server)->stop (server);
  88 }
  89
  90 static void
  91 display_server_init (DisplayServer *server)
  92 {
  93     server->priv = G_TYPE_INSTANCE_GET_PRIVATE (server, DISPLAY_SERVER_TYPE, DisplayServerPrivate);
  94     server->priv->start_local_sessions = TRUE;
  95 }
  96
  97 static void
  98 display_server_class_init (DisplayServerClass *klass)
  99 {
 100     klass->start = display_server_real_start;
 101     klass->stop = display_server_real_stop;
 102
 103     g_type_class_add_private (klass, sizeof (DisplayServerPrivate));
 104
 105     signals[READY] =
 106         g_signal_new ("ready",
 107                       G_TYPE_FROM_CLASS (klass),
 108                       G_SIGNAL_RUN_LAST,
 109                       G_STRUCT_OFFSET (DisplayServerClass, ready),
 110                       NULL, NULL,
 111                       g_cclosure_marshal_VOID__VOID,
 112                       G_TYPE_NONE, 0);
 113     signals[STOPPED] =
 114         g_signal_new ("stopped",
 115                       G_TYPE_FROM_CLASS (klass),
 116                       G_SIGNAL_RUN_LAST,
 117                       G_STRUCT_OFFSET (DisplayServerClass, stopped),
 118                       NULL, NULL,
 119                       g_cclosure_marshal_VOID__VOID,
 120                       G_TYPE_NONE, 0);
 121 }