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
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include <QMetaObject>
#include <QTimer>
#include <QVBoxLayout>
#include <QWidget>
#include <QLineEdit>
#include <QPushButton>
#include <QProcess>
#include <QDateTime>
#include <QLabel>
#include <qservice.h>
#include <qservicemanager.h>
#if defined (Q_OS_SYMBIAN) || defined(Q_OS_WINCE) || defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
#include "ui_sfwecho_client_mobile.h"
#else
#include "ui_sfwecho_client.h"
#endif
QTM_USE_NAMESPACE
class EchoClient : public QMainWindow, public Ui_EchoClient
{
Q_OBJECT
public:
EchoClient(QWidget *parent = 0, Qt::WindowFlags flags = 0)
: QMainWindow(parent, flags)
{
setupUi(this);
globalEcho = 0;
privateEcho = 0;
echo = 0;
// Set default connection to the echo global server
on_globalChat_toggled(true);
}
~EchoClient()
{
}
public slots:
void on_sendButton_clicked()
{
QString message = userName->text() + ": " + messageEdit->text();
messageEdit->setText("");
// Send the instant message to the echo server
QMetaObject::invokeMethod(echo, "sendMessage", Q_ARG(QString, message));
}
void on_globalChat_toggled(bool checked)
{
privateChat->setChecked(!checked);
if (checked) {
if (!connectToChat())
echoBox->append("**Unable to connect to global Echo Chat server**");
else
echoBox->append("**Connected to global Echo Chat server**");
}
}
void on_privateChat_toggled(bool checked)
{
globalChat->setChecked(!checked);
if (checked) {
if (!connectToChat())
echoBox->append("**Unable to connect to private Echo Chat server**");
else
echoBox->append("**Connected to private Echo Chat server**");
}
}
void receivedMessage(const QString &msg, const QDateTime &ts)
{
QString newMsg = "[" + ts.toString("hh:mm") + "]" + " " + msg;
echoBox->append(newMsg);
}
void errorIPC(QService::UnrecoverableIPCError error)
{
QDateTime ts = QDateTime::currentDateTime();
QString newMsg = "[" + ts.toString("hh:mm") + "]" + " " + "IPC Error! ";
if (error == QService::ErrorServiceNoLongerAvailable)
newMsg += "Service no longer available";
echoBox->append(newMsg);
}
private:
QObject *globalEcho;
QObject *privateEcho;
QObject *echo;
bool connectToChat()
{
// 0 for private and 1 for global
int version = 0;
if (globalChat->isChecked())
version = 1;
// Set to private server if it previously existed
if (privateEcho && version == 0) {
echo = privateEcho;
return true;
}
// Set to global server if it previously existed
if (globalEcho && version == 1) {
echo = globalEcho;
return true;
}
// No connection established yet
QServiceManager manager;
QList<QServiceInterfaceDescriptor> list = manager.findInterfaces("EchoService");
if(list.count() < version+1){
echoBox->append("**Unable to find a registered service**");
return false;
}
QServiceInterfaceDescriptor desc = list[version];
if (!desc.isValid()) {
qWarning() << "EchoService interface not found";
return false;
}
QObject *service = manager.loadInterface(desc);
if (!service) {
qWarning() << "EchoService unable to connect";
return false;
}
if (version == 0) {
privateEcho = service;
echo = privateEcho;
} else {
globalEcho = service;
echo = globalEcho;
}
echo->setParent(this);
// Connect echo message broadcasts
QObject::connect(echo, SIGNAL(broadcastMessage(QString,QDateTime)),
this, SLOT(receivedMessage(QString,QDateTime)));
// Connect IPC errors
QObject::connect(echo, SIGNAL(errorUnrecoverableIPCFault(QService::UnrecoverableIPCError)),
this, SLOT(errorIPC(QService::UnrecoverableIPCError)));
return true;
}
};
int main(int argc, char **argv)
{
QApplication app(argc, argv);
EchoClient dialog;
#ifdef Q_OS_SYMBIAN
dialog.showMaximized();
#else
dialog.show();
#endif
return app.exec();
}
#include "main.moc"
|
