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1 office 1 /*
2 * Copyright © 2013 Lars Uebernickel
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 *
17 * Authors: Lars Uebernickel <lars@uebernic.de>
18 */
19  
20 #include "config.h"
21 #include "gnotificationbackend.h"
22  
23 #include "giomodule-priv.h"
24 #include "gdbusconnection.h"
25 #include "gapplication.h"
26 #include "gnotification-private.h"
27  
28 #define G_TYPE_GTK_NOTIFICATION_BACKEND (g_gtk_notification_backend_get_type ())
29 #define G_GTK_NOTIFICATION_BACKEND(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_GTK_NOTIFICATION_BACKEND, GGtkNotificationBackend))
30  
31 typedef struct _GGtkNotificationBackend GGtkNotificationBackend;
32 typedef GNotificationBackendClass GGtkNotificationBackendClass;
33  
34 struct _GGtkNotificationBackend
35 {
36 GNotificationBackend parent;
37 };
38  
39 GType g_gtk_notification_backend_get_type (void);
40  
41 G_DEFINE_TYPE_WITH_CODE (GGtkNotificationBackend, g_gtk_notification_backend, G_TYPE_NOTIFICATION_BACKEND,
42 _g_io_modules_ensure_extension_points_registered ();
43 g_io_extension_point_implement (G_NOTIFICATION_BACKEND_EXTENSION_POINT_NAME,
44 g_define_type_id, "gtk", 100))
45  
46 static gboolean
47 g_gtk_notification_backend_is_supported (void)
48 {
49 GDBusConnection *session_bus;
50 GVariant *reply;
51  
52 /* Find out if the notification server is running. This is a
53 * synchronous call because gio extension points don't support asnyc
54 * backend verification. This is only run once and only contacts the
55 * dbus daemon. */
56  
57 session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
58 if (session_bus == NULL)
59 return FALSE;
60  
61 reply = g_dbus_connection_call_sync (session_bus, "org.freedesktop.DBus", "/", "org.freedesktop.DBus",
62 "GetNameOwner", g_variant_new ("(s)", "org.gtk.Notifications"),
63 G_VARIANT_TYPE ("(s)"), G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL);
64  
65 g_object_unref (session_bus);
66  
67 if (reply)
68 {
69 g_variant_unref (reply);
70 return TRUE;
71 }
72 else
73 return FALSE;
74 }
75  
76 static void
77 g_gtk_notification_backend_send_notification (GNotificationBackend *backend,
78 const gchar *id,
79 GNotification *notification)
80 {
81 GVariant *params;
82  
83 params = g_variant_new ("(ss@a{sv})", g_application_get_application_id (backend->application),
84 id,
85 g_notification_serialize (notification));
86  
87 g_dbus_connection_call (backend->dbus_connection,
88 "org.gtk.Notifications", "/org/gtk/Notifications",
89 "org.gtk.Notifications", "AddNotification", params,
90 G_VARIANT_TYPE_UNIT,
91 G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
92 }
93  
94 static void
95 g_gtk_notification_backend_withdraw_notification (GNotificationBackend *backend,
96 const gchar *id)
97 {
98 GVariant *params;
99  
100 params = g_variant_new ("(ss)", g_application_get_application_id (backend->application), id);
101  
102 g_dbus_connection_call (backend->dbus_connection, "org.gtk.Notifications",
103 "/org/gtk/Notifications", "org.gtk.Notifications",
104 "RemoveNotification", params, G_VARIANT_TYPE_UNIT,
105 G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
106 }
107  
108 static void
109 g_gtk_notification_backend_init (GGtkNotificationBackend *backend)
110 {
111 }
112  
113 static void
114 g_gtk_notification_backend_class_init (GGtkNotificationBackendClass *class)
115 {
116 GNotificationBackendClass *backend_class = G_NOTIFICATION_BACKEND_CLASS (class);
117  
118 backend_class->is_supported = g_gtk_notification_backend_is_supported;
119 backend_class->send_notification = g_gtk_notification_backend_send_notification;
120 backend_class->withdraw_notification = g_gtk_notification_backend_withdraw_notification;
121 }