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     /* TRUE when the display server has stopped */
  32     gboolean stopped;
  33 };
  34
  35 G_DEFINE_TYPE (DisplayServer, display_server, G_TYPE_OBJECT);
  36
  37 void
  38 display_server_set_name (DisplayServer *server, const gchar *name)
  39 {
  40     g_return_if_fail (server != NULL);
  41     g_free (server->priv->name);
  42     server->priv->name = g_strdup (name);
  43 }
  44
  45 const gchar *
  46 display_server_get_name (DisplayServer *server)
  47 {
  48     g_return_val_if_fail (server != NULL, NULL);
  49     return server->priv->name;
  50 }
  51
  52 void
  53 display_server_set_start_local_sessions (DisplayServer *server, gboolean start_local_sessions)
  54 {
  55     g_return_if_fail (server != NULL);
  56     server->priv->start_local_sessions = start_local_sessions;
  57 }
  58
  59 gboolean
  60 display_server_get_start_local_sessions (DisplayServer *server)
  61 {
  62     g_return_val_if_fail (server != NULL, FALSE);
  63     return server->priv->start_local_sessions;
  64 }
  65
  66 gboolean
  67 display_server_start (DisplayServer *server)
  68 {
  69     g_return_val_if_fail (server != NULL, FALSE);
  70     return DISPLAY_SERVER_GET_CLASS (server)->start (server);
  71 }
  72
  73 static gboolean
  74 display_server_real_start (DisplayServer *server)
  75 {
  76     g_signal_emit (server, signals[READY], 0);
  77     return TRUE;
  78 }
  79
  80 void
  81 display_server_stop (DisplayServer *server)
  82 {
  83     g_return_if_fail (server != NULL);
  84     DISPLAY_SERVER_GET_CLASS (server)->stop (server);
  85 }
  86
  87 gboolean
  88 display_server_get_is_stopped (DisplayServer *server)
  89 {
  90     g_return_val_if_fail (server != NULL, TRUE);
  91     return server->priv->stopped;
  92 }
  93
  94 static void
  95 display_server_real_stop (DisplayServer *server)
  96 {
  97     server->priv->stopped = TRUE;
  98     g_signal_emit (server, signals[STOPPED], 0);
  99 }
 100
 101 static gboolean
 102 display_server_real_get_is_stopped (DisplayServer *server)
 103 {
 104     return server->priv->stopped;
 105 }
 106
 107 static void
 108 display_server_init (DisplayServer *server)
 109 {
 110     server->priv = G_TYPE_INSTANCE_GET_PRIVATE (server, DISPLAY_SERVER_TYPE, DisplayServerPrivate);
 111     server->priv->start_local_sessions = TRUE;
 112 }
 113
 114 static void
 115 display_server_class_init (DisplayServerClass *klass)
 116 {
 117     klass->start = display_server_real_start;
 118     klass->stop = display_server_real_stop;
 119
 120     g_type_class_add_private (klass, sizeof (DisplayServerPrivate));
 121
 122     signals[READY] =
 123         g_signal_new ("ready",
 124                       G_TYPE_FROM_CLASS (klass),
 125                       G_SIGNAL_RUN_LAST,
 126                       G_STRUCT_OFFSET (DisplayServerClass, ready),
 127                       NULL, NULL,
 128                       g_cclosure_marshal_VOID__VOID,
 129                       G_TYPE_NONE, 0);
 130     signals[STOPPED] =
 131         g_signal_new ("stopped",
 132                       G_TYPE_FROM_CLASS (klass),
 133                       G_SIGNAL_RUN_LAST,
 134                       G_STRUCT_OFFSET (DisplayServerClass, stopped),
 135                       NULL, NULL,
 136                       g_cclosure_marshal_VOID__VOID,
 137                       G_TYPE_NONE, 0);
 138 }