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
|
#include "mainwindow.h"
#include <QGuiApplication>
#include <QScreen>
#include <QWindow>
#include <QtCore>
#include <QVBoxLayout>
#include <cstdlib>
namespace {
const char * const TextPrompt = "Double-click this text area to invoke virtual keyboard ...";
const QString serverName("maliit-server"); //TODO: when maliit and example application is split out, look up in .pc file
bool enableFullScreenMode()
{
return (qApp->arguments().contains("-fullscreen"));
}
} // namespace
class MyTextEdit
: public QTextEdit
{
private:
bool was_focused;
public:
MyTextEdit()
: QTextEdit(TextPrompt)
, was_focused(false)
{}
protected:
void focusInEvent(QFocusEvent *e)
{
toPlainText();
// On first text edit, clear pre-set TextPrompt:
if (not was_focused && toPlainText() == QString(TextPrompt)) {
was_focused = true;
setText("");
}
QTextEdit::focusInEvent(e);
}
};
MainWindow::MainWindow()
: QMainWindow()
, m_server_process(new QProcess(this))
, m_orientation_index(0)
, m_grid_row(0)
, m_grid(new QGridLayout)
, m_start_server(new QPushButton)
, m_rotate_keyboard(new QPushButton("Rotate input method"))
{
m_server_process->setProcessChannelMode(QProcess::ForwardedChannels);
connect(m_server_process, SIGNAL(stateChanged(QProcess::ProcessState)),
this, SLOT(onServerStateChanged()));
connect(m_start_server, SIGNAL(clicked()),
this, SLOT(onStartServerClicked()));
connect(m_rotate_keyboard, SIGNAL(clicked()),
this, SLOT(onRotateKeyboardClicked()));
initUI();
onServerStateChanged();
// Work around a bug in maliit input method support where primary orientation is always portrait
windowHandle()->reportContentOrientationChange(windowHandle()->screen()->primaryOrientation());
}
void MainWindow::initUI()
{
setWindowTitle("Maliit test application");
m_grid_row = 0;
QHBoxLayout *buttons = new QHBoxLayout;
buttons->addWidget(m_start_server);
buttons->addWidget(m_rotate_keyboard);
// Clicking the button will steal focus from the text edit, thus hiding
// the virtual keyboard:
buttons->addWidget(new QPushButton("Dismiss input method"));
m_grid->addLayout(buttons, m_grid_row, 1);
++m_grid_row;
// multi line:
QLabel *label = 0;
QTextEdit *entry = 0;
m_grid->addWidget(label = new QLabel("multi line"), m_grid_row, 0);
m_grid->addWidget(entry = new QTextEdit, m_grid_row, 1);
++m_grid_row;
label->setToolTip("Qt::ImhNone");
entry->setInputMethodHints(Qt::ImhNone);
entry->installEventFilter(this);
// single line, emulating content types via Qt::InputMethodHints:
insertIntoGrid("single line", Qt::ImhNone,
"Qt::ImhNone");
insertIntoGrid("password", Qt::ImhHiddenText|Qt::ImhNoPredictiveText,
"Qt::ImhHiddenText|Qt::ImhNoPredictiveText");
insertIntoGrid("numbers only", Qt::ImhFormattedNumbersOnly,
"Qt::ImhFormattedNumbersOnly");
insertIntoGrid("dialer input", Qt::ImhDialableCharactersOnly,
"Qt::ImhDialableCharactersOnly");
insertIntoGrid("symbol view", Qt::ImhPreferNumbers,
"Qt::ImhPreferNumbers");
insertIntoGrid("e-mail", Qt::ImhEmailCharactersOnly,
"Qt::ImhEmailCharactersOnly");
insertIntoGrid("website", Qt::ImhUrlCharactersOnly,
"Qt::ImhUrlCharactersOnly");
// Don't want other buttons to steal focus:
m_start_server->setFocusPolicy(Qt::NoFocus);
m_rotate_keyboard->setFocusPolicy(Qt::NoFocus);
QPushButton *close_app = new QPushButton("Close application");
m_grid->addWidget(close_app, m_grid_row, 1);
++m_grid_row;
connect(close_app, SIGNAL(clicked()),
this, SLOT(close()));
setCentralWidget(new QWidget);
centralWidget()->setLayout(m_grid);
if (enableFullScreenMode()) {
showFullScreen();
} else {
show();
}
}
void MainWindow::insertIntoGrid(const QString &description,
const Qt::InputMethodHints &hints,
const QString &tooltip)
{
QLabel *label = 0;
QLineEdit *entry = 0;
m_grid->addWidget(label = new QLabel(description), m_grid_row, 0);
m_grid->addWidget(entry = new QLineEdit, m_grid_row, 1);
++m_grid_row;
label->setToolTip(tooltip);
entry->setInputMethodHints(hints);
entry->installEventFilter(this);
}
MainWindow::~MainWindow()
{
m_server_process->terminate();
}
bool MainWindow::eventFilter(QObject *watched,
QEvent *event)
{
Q_UNUSED(watched)
// Let the input method show up on focus-in, not on second click:
if (event->type() == QFocusEvent::FocusIn) {
qApp->inputMethod()->show();
}
return false;
}
void MainWindow::onStartServerClicked()
{
if (m_server_process->state() != QProcess::NotRunning) {
m_server_process->terminate();
} else {
m_server_process->start(serverName, QStringList());
}
}
void MainWindow::onServerStateChanged()
{
switch (m_server_process->state()) {
case QProcess::Running:
m_start_server->setText("(running) Stop input method server");
break;
case QProcess::Starting:
m_start_server->setText("(starting) Stop input method server");
break;
case QProcess::NotRunning:
m_start_server->setText("(stopped) Start input method server");
break;
default:
break;
}
}
void MainWindow::onRotateKeyboardClicked()
{
++m_orientation_index;
static const Qt::ScreenOrientation orientations[] = {
Qt::LandscapeOrientation,
Qt::PortraitOrientation,
Qt::InvertedLandscapeOrientation,
Qt::InvertedPortraitOrientation
};
windowHandle()->reportContentOrientationChange(orientations[m_orientation_index % 4]);
}
|
