src/wayland-session.c

   1 /*
   2  * Copyright (C) 2015 Canonical Ltd.
   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 "wayland-session.h"
  13 #include "vt.h"
  14
  15 struct WaylandSessionPrivate
  16 {
  17     /* VT to run on */
  18     gint vt;
  19     gboolean have_vt_ref;
  20 };
  21
  22 G_DEFINE_TYPE (WaylandSession, wayland_session, DISPLAY_SERVER_TYPE);
  23
  24 WaylandSession *
  25 wayland_session_new (void)
  26 {
  27     return g_object_new (WAYLAND_SESSION_TYPE, NULL);
  28 }
  29
  30 void
  31 wayland_session_set_vt (WaylandSession *session, gint vt)
  32 {
  33     g_return_if_fail (session != NULL);
  34
  35     if (session->priv->have_vt_ref)
  36         vt_unref (session->priv->vt);
  37     session->priv->have_vt_ref = FALSE;
  38     session->priv->vt = vt;
  39     if (vt > 0)
  40     {
  41         vt_ref (vt);
  42         session->priv->have_vt_ref = TRUE;
  43     }
  44 }
  45
  46 static gint
  47 wayland_session_get_vt (DisplayServer *server)
  48 {
  49     g_return_val_if_fail (server != NULL, 0);
  50     return WAYLAND_SESSION (server)->priv->vt;
  51 }
  52
  53 static void
  54 wayland_session_connect_session (DisplayServer *display_server, Session *session)
  55 {
  56     WaylandSession *wayland_session = WAYLAND_SESSION (display_server);
  57
  58     session_set_env (session, "XDG_SESSION_TYPE", "wayland");
  59
  60     if (wayland_session->priv->vt >= 0)
  61     {
  62         gchar *value = g_strdup_printf ("%d", wayland_session->priv->vt);
  63         session_set_env (session, "XDG_VTNR", value);
  64         g_free (value);
  65     }
  66 }
  67
  68 static void
  69 wayland_session_disconnect_session (DisplayServer *display_server, Session *session)
  70 {
  71     session_unset_env (session, "XDG_SESSION_TYPE");
  72     session_unset_env (session, "XDG_VTNR");
  73 }
  74
  75 static void
  76 wayland_session_init (WaylandSession *session)
  77 {
  78     session->priv = G_TYPE_INSTANCE_GET_PRIVATE (session, WAYLAND_SESSION_TYPE, WaylandSessionPrivate);
  79 }
  80
  81 static void
  82 wayland_session_finalize (GObject *object)
  83 {
  84     WaylandSession *self = WAYLAND_SESSION (object);
  85
  86     if (self->priv->have_vt_ref)
  87         vt_unref (self->priv->vt);
  88
  89     G_OBJECT_CLASS (wayland_session_parent_class)->finalize (object);
  90 }
  91
  92 static void
  93 wayland_session_class_init (WaylandSessionClass *klass)
  94 {
  95     GObjectClass *object_class = G_OBJECT_CLASS (klass);
  96     DisplayServerClass *display_server_class = DISPLAY_SERVER_CLASS (klass);
  97
  98     display_server_class->get_vt = wayland_session_get_vt;
  99     display_server_class->connect_session = wayland_session_connect_session;
 100     display_server_class->disconnect_session = wayland_session_disconnect_session;
 101     object_class->finalize = wayland_session_finalize;
 102
 103     g_type_class_add_private (klass, sizeof (WaylandSessionPrivate));
 104 }