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
165
166
|
/*
* dbus-spy.c - A gobject subclass to watch dbus for org.freedesktop.Notification.Notify messages.
*/
#include "dbus-spy.h"
enum {
MESSAGE_RECEIVED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
static void dbus_spy_class_init(DBusSpyClass *klass);
static void dbus_spy_init(DBusSpy *self);
static void dbus_spy_dispose(GObject *object);
static void add_filter(DBusSpy *self);
static void bus_get_cb(GObject *source_object, GAsyncResult *res, gpointer user_data);
static GDBusMessage *message_filter(GDBusConnection *connection, GDBusMessage *message,
gboolean incoming, gpointer user_data);
#define MATCH_STRING "type='method_call',interface='org.freedesktop.Notifications',member='Notify'"
G_DEFINE_TYPE (DBusSpy, dbus_spy, G_TYPE_OBJECT);
static void
dbus_spy_class_init(DBusSpyClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
g_type_class_add_private(klass, sizeof(DBusSpyPrivate));
object_class->dispose = dbus_spy_dispose;
signals[MESSAGE_RECEIVED] =
g_signal_new(DBUS_SPY_SIGNAL_MESSAGE_RECEIVED,
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET(DBusSpyClass, message_received),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE,
1, NOTIFICATION_TYPE);
}
static void
bus_get_cb(GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
GDBusConnection *connection = g_bus_get_finish(res, &error);
if(error != NULL) {
g_warning("Could not get a connection to the dbus session bus: %s\n", error->message);
g_error_free(error);
return;
}
DBusSpy *self = DBUS_SPY(user_data);
g_return_if_fail(self != NULL);
if(self->priv->connection_cancel != NULL) {
g_object_unref(self->priv->connection_cancel);
self->priv->connection_cancel = NULL;
}
self->priv->connection = connection;
add_filter(self);
}
static void
add_filter(DBusSpy *self)
{
GDBusMessage *message;
GVariant *body;
GError *error = NULL;
message = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
"org.freedesktop.DBus", "AddMatch");
body = g_variant_new_parsed("(%s,)", MATCH_STRING);
g_dbus_message_set_body(message, body);
g_dbus_connection_send_message(self->priv->connection,
message,
G_DBUS_SEND_MESSAGE_FLAGS_NONE,
NULL,
&error);
if(error != NULL) {
g_warning("Failed to send AddMatch message: %s\n", error->message);
g_error_free(error);
return;
}
g_dbus_connection_add_filter(self->priv->connection, message_filter, self, NULL);
}
static GDBusMessage*
message_filter(GDBusConnection *connection, GDBusMessage *message, gboolean incoming, gpointer user_data)
{
if(!incoming) return message;
GDBusMessageType type = g_dbus_message_get_message_type(message);
const gchar *interface = g_dbus_message_get_interface(message);
const gchar *member = g_dbus_message_get_member(message);
if((type == G_DBUS_MESSAGE_TYPE_METHOD_CALL)
&& (g_strcmp0(interface, "org.freedesktop.Notifications") == 0)
&& (g_strcmp0(member, "Notify") == 0))
{
DBusSpy *spy = DBUS_SPY(user_data);
Notification *note = notification_new_from_dbus_message(message);
g_signal_emit(spy, signals[MESSAGE_RECEIVED], 0, note);
g_object_unref(note);
g_object_unref(message);
message = NULL;
}
return message;
}
static void
dbus_spy_init(DBusSpy *self)
{
self->priv = DBUS_SPY_GET_PRIVATE(self);
self->priv->connection = NULL;
self->priv->connection_cancel = g_cancellable_new();
g_bus_get(G_BUS_TYPE_SESSION,
self->priv->connection_cancel,
bus_get_cb,
self);
}
static void
dbus_spy_dispose(GObject *object)
{
DBusSpy *self = DBUS_SPY(object);
if(self->priv->connection_cancel != NULL) {
g_cancellable_cancel(self->priv->connection_cancel);
g_object_unref(self->priv->connection_cancel);
self->priv->connection_cancel = NULL;
}
if(self->priv->connection != NULL) {
g_dbus_connection_close(self->priv->connection, NULL, NULL, NULL);
g_object_unref(self->priv->connection);
self->priv->connection = NULL;
}
G_OBJECT_CLASS(dbus_spy_parent_class)->dispose(object);
}
DBusSpy*
dbus_spy_new(void)
{
return DBUS_SPY(g_object_new(DBUS_SPY_TYPE, NULL));
}
|
