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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/*
* Copyright 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*/
#include <notifications/awake.h>
#include <notifications/dbus-shared.h>
#include <gio/gio.h>
#include <limits>
namespace unity {
namespace indicator {
namespace notifications {
/***
****
***/
class Awake::Impl
{
public:
Impl(const std::string& app_name):
m_app_name(app_name),
m_cancellable(g_cancellable_new())
{
g_bus_get(G_BUS_TYPE_SYSTEM, m_cancellable, on_system_bus_ready, this);
}
~Impl()
{
g_cancellable_cancel (m_cancellable);
g_object_unref (m_cancellable);
if (m_system_bus != nullptr)
{
unforce_awake ();
unforce_screen ();
g_object_unref (m_system_bus);
}
}
private:
static void on_system_bus_ready (GObject *,
GAsyncResult *res,
gpointer gself)
{
GError * error;
GDBusConnection * system_bus;
error = nullptr;
system_bus = g_bus_get_finish (res, &error);
if (error != nullptr)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("Unable to get bus: %s", error->message);
g_error_free (error);
}
else if (system_bus != nullptr)
{
auto self = static_cast<Impl*>(gself);
self->m_system_bus = G_DBUS_CONNECTION (g_object_ref (system_bus));
// ask powerd to keep the system awake
static constexpr int32_t POWERD_SYS_STATE_ACTIVE = 1;
g_dbus_connection_call (system_bus,
BUS_POWERD_NAME,
BUS_POWERD_PATH,
BUS_POWERD_INTERFACE,
"requestSysState",
g_variant_new("(si)", self->m_app_name.c_str(), POWERD_SYS_STATE_ACTIVE),
G_VARIANT_TYPE("(s)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
self->m_cancellable,
on_force_awake_response,
self);
// ask unity-system-compositor to turn on the screen
g_dbus_connection_call (system_bus,
BUS_SCREEN_NAME,
BUS_SCREEN_PATH,
BUS_SCREEN_INTERFACE,
"keepDisplayOn",
nullptr,
G_VARIANT_TYPE("(i)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
self->m_cancellable,
on_force_screen_response,
self);
g_object_unref (system_bus);
}
}
static void on_force_awake_response (GObject * connection,
GAsyncResult * res,
gpointer gself)
{
GError * error;
GVariant * args;
error = nullptr;
args = g_dbus_connection_call_finish (G_DBUS_CONNECTION(connection),
res,
&error);
if (error != nullptr)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
!g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_SERVICE_UNKNOWN))
{
g_warning ("Unable to inhibit sleep: %s", error->message);
}
g_error_free (error);
}
else
{
auto self = static_cast<Impl*>(gself);
g_clear_pointer (&self->m_awake_cookie, g_free);
g_variant_get (args, "(s)", &self->m_awake_cookie);
g_debug ("m_awake_cookie is now '%s'", self->m_awake_cookie);
g_variant_unref (args);
}
}
static void on_force_screen_response (GObject * connection,
GAsyncResult * res,
gpointer gself)
{
GError * error;
GVariant * args;
error = nullptr;
args = g_dbus_connection_call_finish (G_DBUS_CONNECTION(connection),
res,
&error);
if (error != nullptr)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
!g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_SERVICE_UNKNOWN))
{
g_warning ("Unable to turn on the screen: %s", error->message);
}
g_error_free (error);
}
else
{
auto self = static_cast<Impl*>(gself);
self->m_screen_cookie = NO_SCREEN_COOKIE;
g_variant_get (args, "(i)", &self->m_screen_cookie);
g_debug ("m_screen_cookie is now '%d'", self->m_screen_cookie);
g_variant_unref (args);
}
}
void unforce_awake ()
{
g_return_if_fail (G_IS_DBUS_CONNECTION(m_system_bus));
if (m_awake_cookie != nullptr)
{
g_dbus_connection_call (m_system_bus,
BUS_POWERD_NAME,
BUS_POWERD_PATH,
BUS_POWERD_INTERFACE,
"clearSysState",
g_variant_new("(s)", m_awake_cookie),
nullptr,
G_DBUS_CALL_FLAGS_NONE,
-1,
nullptr,
nullptr,
nullptr);
g_clear_pointer (&m_awake_cookie, g_free);
}
}
void unforce_screen ()
{
g_return_if_fail (G_IS_DBUS_CONNECTION(m_system_bus));
if (m_screen_cookie != NO_SCREEN_COOKIE)
{
g_dbus_connection_call (m_system_bus,
BUS_SCREEN_NAME,
BUS_SCREEN_PATH,
BUS_SCREEN_INTERFACE,
"removeDisplayOnRequest",
g_variant_new("(i)", m_screen_cookie),
nullptr,
G_DBUS_CALL_FLAGS_NONE,
-1,
nullptr,
nullptr,
nullptr);
m_screen_cookie = NO_SCREEN_COOKIE;
}
}
const std::string m_app_name;
GCancellable * m_cancellable = nullptr;
GDBusConnection * m_system_bus = nullptr;
char * m_awake_cookie = nullptr;
int32_t m_screen_cookie = NO_SCREEN_COOKIE;
static constexpr int32_t NO_SCREEN_COOKIE { std::numeric_limits<int32_t>::min() };
};
/***
****
***/
Awake::Awake(const std::string& app_name):
impl(new Impl (app_name))
{
}
Awake::~Awake()
{
}
/***
****
***/
} // namespace datetime
} // namespace indicator
} // namespace unity
|
