1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* panel-shell.c: panel shell interface implementation
*
* Copyright (C) 2001 Ximian, Inc.
* Copyright (C) 2008 Red Hat, Inc.
* Copyright (C) 2008 Novell, Inc.
* Copyright (C) 2010 Carlos Garcia Campos <carlosgc@gnome.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Authors:
* Jacob Berkman <jacob@ximian.com>
* Colin Walters <walters@verbum.org>
* Vincent Untz <vuntz@gnome.org>
*/
#include <config.h>
#include <glib/gi18n.h>
#include <libpanel-util/panel-cleanup.h>
#include "panel-profile.h"
#include "panel-session.h"
#include "panel-shell.h"
#define PANEL_DBUS_SERVICE "org.mate.Panel"
static GDBusConnection *dbus_connection = NULL;
static void
panel_shell_on_name_lost (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
/* We lost our DBus name, and there is something replacing us.
* Tell the SM not to restart us automatically, then exit. */
g_printerr ("Panel leaving: a new panel shell is starting.\n");
panel_session_do_not_restart ();
panel_shell_quit ();
}
static void
panel_shell_cleanup (gpointer data)
{
if (dbus_connection != NULL) {
g_object_unref (dbus_connection);
dbus_connection = NULL;
}
}
gboolean
panel_shell_register (gboolean replace)
{
GBusNameOwnerFlags flags;
guint32 request_name_reply;
GVariant *result;
gboolean retval = FALSE;
GError *error = NULL;
if (dbus_connection != NULL)
return TRUE;
panel_cleanup_register (PANEL_CLEAN_FUNC (panel_shell_cleanup), NULL);
/* There isn't a sync version of g_bus_own_name, so we have to requeste
* the name manually here. There's no ui yet so it's safe to use this
* sync api */
dbus_connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (dbus_connection == NULL) {
g_warning ("Cannot register the panel shell: %s", error->message);
goto register_out;
}
flags = G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT;
if (replace)
flags |= G_BUS_NAME_OWNER_FLAGS_REPLACE;
result = g_dbus_connection_call_sync (dbus_connection,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"RequestName",
g_variant_new ("(su)",
PANEL_DBUS_SERVICE,
flags),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1, NULL, &error);
if (!result) {
g_warning ("Cannot register the panel shell: %s",
error->message);
g_error_free (error);
goto register_out;
}
g_variant_get (result, "(u)", &request_name_reply);
g_variant_unref (result);
switch (request_name_reply) {
case 1: /* DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER */
case 4: /* DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER */
retval = TRUE;
g_dbus_connection_signal_subscribe (dbus_connection,
"org.freedesktop.DBus",
"org.freedesktop.DBus",
"NameLost",
"/org/freedesktop/DBus",
PANEL_DBUS_SERVICE,
G_DBUS_SIGNAL_FLAGS_NONE,
(GDBusSignalCallback)panel_shell_on_name_lost,
NULL, NULL);
break;
case 2: /* DBUS_REQUEST_NAME_REPLY_IN_QUEUE */
case 3: /* DBUS_REQUEST_NAME_REPLY_EXISTS */
g_printerr ("Cannot register the panel shell: there is "
"already one running.\n");
break;
default:
g_warning ("Cannot register the panel shell: unhandled "
"reply %u from RequestName", request_name_reply);
}
register_out:
if (!retval) {
panel_session_do_not_restart ();
panel_shell_cleanup (NULL);
}
return retval;
}
void
panel_shell_quit (void)
{
GSList *toplevels_to_destroy, *l;
toplevels_to_destroy = g_slist_copy (panel_toplevel_list_toplevels ());
for (l = toplevels_to_destroy; l; l = l->next)
gtk_widget_destroy (l->data);
g_slist_free (toplevels_to_destroy);
gtk_main_quit ();
}
|
