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
|
// Copyright (C) 2012 Red Hat, Inc.
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// This library 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
// Lesser General Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
using Custom;
namespace SpiceCtrl {
public class ForeignMenu: Object {
public Menu menu { get; private set; }
public string title { get; private set; }
public signal void client_connected ();
private int nclients;
private List<IOStream> clients;
public ForeignMenu() {
menu = new Menu ();
}
public void menu_item_click_msg (int32 item_id) {
debug ("clicked id: %d".printf (item_id));
var msg = SpiceProtocol.ForeignMenu.Event ();
msg.base.size = (uint32)sizeof (SpiceProtocol.ForeignMenu.Event);
msg.base.id = SpiceProtocol.ForeignMenu.MsgId.ITEM_EVENT;
msg.id = item_id;
msg.action = SpiceProtocol.ForeignMenu.EventType.CLICK;
unowned uint8[] p = ((uint8[])(&msg))[0:msg.base.size];
send_msg.begin (p);
}
public void menu_item_checked_msg (int32 item_id, bool checked = true) {
debug ("%schecked id: %d".printf (checked ? "" : "un", item_id));
var msg = SpiceProtocol.ForeignMenu.Event ();
msg.base.size = (uint32)sizeof (SpiceProtocol.ForeignMenu.Event);
msg.base.id = SpiceProtocol.ForeignMenu.MsgId.ITEM_EVENT;
msg.id = item_id;
msg.action = checked ?
SpiceProtocol.ForeignMenu.EventType.CHECKED :
SpiceProtocol.ForeignMenu.EventType.UNCHECKED;
unowned uint8[] p = ((uint8[])(&msg))[0:msg.base.size];
send_msg.begin (p);
}
public void app_activated_msg (bool activated = true) {
var msg = SpiceProtocol.ForeignMenu.Msg ();
msg.size = (uint32)sizeof (SpiceProtocol.ForeignMenu.Event);
msg.id = activated ?
SpiceProtocol.ForeignMenu.MsgId.APP_ACTIVATED :
SpiceProtocol.ForeignMenu.MsgId.APP_DEACTIVATED;
unowned uint8[] p = ((uint8[])(&msg))[0:msg.size];
send_msg.begin (p);
}
public async bool send_msg (owned uint8[] p) throws GLib.Error {
// vala FIXME: pass Controller.Msg instead
// vala doesn't keep reference on the struct in async methods
// it copies only base, which is not enough to transmit the whole
// message.
try {
foreach (var c in clients) {
yield output_stream_write (c.output_stream, p);
}
} catch (GLib.Error e) {
warning (e.message);
}
return true;
}
SpiceProtocol.Controller.MenuFlags get_menu_flags (uint32 type) {
SpiceProtocol.Controller.MenuFlags flags = 0;
if ((SpiceProtocol.ForeignMenu.MenuFlags.CHECKED & type) != 0)
flags |= SpiceProtocol.Controller.MenuFlags.CHECKED;
if ((SpiceProtocol.ForeignMenu.MenuFlags.DIM & type) != 0)
flags |= SpiceProtocol.Controller.MenuFlags.GRAYED;
return flags;
}
private bool handle_message (SpiceProtocol.ForeignMenu.Msg* msg) {
switch (msg.id) {
case SpiceProtocol.ForeignMenu.MsgId.SET_TITLE:
var t = (SpiceProtocol.ForeignMenu.SetTitle*)(msg);
title = t.string;
break;
case SpiceProtocol.ForeignMenu.MsgId.ADD_ITEM:
var i = (SpiceProtocol.ForeignMenu.AddItem*)(msg);
debug ("add id:%u type:%u position:%u title:%s", i.id, i.type, i.position, i.string);
menu.items.append (new MenuItem ((int)i.id, i.string, get_menu_flags (i.type)));
notify_property ("menu");
break;
case SpiceProtocol.ForeignMenu.MsgId.MODIFY_ITEM:
debug ("deprecated: modify item");
break;
case SpiceProtocol.ForeignMenu.MsgId.REMOVE_ITEM:
var i = (SpiceProtocol.ForeignMenu.RmItem*)(msg);
debug ("not implemented: remove id:%u".printf (i.id));
break;
case SpiceProtocol.ForeignMenu.MsgId.CLEAR:
menu = new Menu ();
break;
default:
warn_if_reached ();
return false;
}
return true;
}
private async void handle_client (IOStream c) throws GLib.Error {
debug ("new socket client, reading init header");
var p = new uint8[sizeof(SpiceProtocol.ForeignMenu.InitHeader)];
var header = (SpiceProtocol.ForeignMenu.InitHeader*)p;
yield input_stream_read (c.input_stream, p);
if (warn_if (header.magic != SpiceProtocol.ForeignMenu.MAGIC))
return;
if (warn_if (header.version != SpiceProtocol.ForeignMenu.VERSION))
return;
if (warn_if (header.size < sizeof (SpiceProtocol.ForeignMenu.Init)))
return;
var cp = new uint8[sizeof(uint64)];
yield input_stream_read (c.input_stream, cp);
uint64 credentials = *(uint64*)cp;
if (warn_if (credentials != 0))
return;
var title_size = header.size - sizeof(SpiceProtocol.ForeignMenu.Init);
var title = new uint8[title_size + 1];
yield c.input_stream.read_async (title[0:title_size]);
this.title = (string)title;
client_connected ();
for (;;) {
var t = new uint8[sizeof(SpiceProtocol.ForeignMenu.Msg)];
yield input_stream_read (c.input_stream, t);
var msg = (SpiceProtocol.ForeignMenu.Msg*)t;
debug ("new message " + msg.id.to_string () + "size " + msg.size.to_string ());
if (warn_if (msg.size < sizeof (SpiceProtocol.ForeignMenu.Msg)))
break;
if (msg.size > sizeof (SpiceProtocol.ForeignMenu.Msg)) {
t.resize ((int)msg.size);
msg = (SpiceProtocol.ForeignMenu.Msg*)t;
yield input_stream_read (c.input_stream, t[sizeof(SpiceProtocol.ForeignMenu.Msg):msg.size]);
}
handle_message (msg);
}
}
public async void listen (string? addr = null) throws GLib.Error, SpiceCtrl.Error
{
var listener = Spice.ForeignMenuListener.new_listener (addr);
for (;;) {
var c = yield listener.accept_async ();
nclients += 1;
clients.append (c);
try {
yield handle_client (c);
} catch (GLib.Error e) {
warning (e.message);
}
c.close ();
clients.remove (c);
nclients -= 1;
}
}
}
} // SpiceCtrl
|
