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
|
/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "qlibinputkeyboard_p.h"
#include <QtCore/QLoggingCategory>
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/private/qinputdevicemanager_p.h>
#include <qpa/qwindowsysteminterface.h>
#include <libinput.h>
#if QT_CONFIG(xkbcommon)
#include <xkbcommon/xkbcommon-keysyms.h>
#include <xkbcommon/xkbcommon-names.h>
#include <QtGui/private/qxkbcommon_p.h>
#endif
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(qLcLibInput)
const int REPEAT_DELAY = 500;
const int REPEAT_RATE = 100;
QLibInputKeyboard::QLibInputKeyboard()
{
#if QT_CONFIG(xkbcommon)
qCDebug(qLcLibInput) << "Using xkbcommon for key mapping";
m_ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if (!m_ctx) {
qWarning("Failed to create xkb context");
return;
}
m_keymap = xkb_keymap_new_from_names(m_ctx, nullptr, XKB_KEYMAP_COMPILE_NO_FLAGS);
if (!m_keymap) {
qCWarning(qLcLibInput, "Failed to compile keymap");
return;
}
m_state = xkb_state_new(m_keymap);
if (!m_state) {
qCWarning(qLcLibInput, "Failed to create xkb state");
return;
}
m_repeatTimer.setSingleShot(true);
connect(&m_repeatTimer, &QTimer::timeout, this, &QLibInputKeyboard::handleRepeat);
#else
qCWarning(qLcLibInput) << "xkbcommon not available, not performing key mapping";
#endif
}
QLibInputKeyboard::~QLibInputKeyboard()
{
#if QT_CONFIG(xkbcommon)
if (m_state)
xkb_state_unref(m_state);
if (m_keymap)
xkb_keymap_unref(m_keymap);
if (m_ctx)
xkb_context_unref(m_ctx);
#endif
}
void QLibInputKeyboard::processKey(libinput_event_keyboard *e)
{
#if QT_CONFIG(xkbcommon)
if (!m_ctx || !m_keymap || !m_state)
return;
const uint32_t keycode = libinput_event_keyboard_get_key(e) + 8;
const xkb_keysym_t sym = xkb_state_key_get_one_sym(m_state, keycode);
const bool pressed = libinput_event_keyboard_get_key_state(e) == LIBINPUT_KEY_STATE_PRESSED;
// Modifiers here is the modifier state before the event, i.e. not
// including the current key in case it is a modifier. See the XOR
// logic in QKeyEvent::modifiers(). ### QTBUG-73826
Qt::KeyboardModifiers modifiers = QXkbCommon::modifiers(m_state);
const QString text = QXkbCommon::lookupString(m_state, keycode);
const int qtkey = QXkbCommon::keysymToQtKey(sym, modifiers, m_state, keycode);
xkb_state_update_key(m_state, keycode, pressed ? XKB_KEY_DOWN : XKB_KEY_UP);
Qt::KeyboardModifiers modifiersAfterStateChange = QXkbCommon::modifiers(m_state);
QGuiApplicationPrivate::inputDeviceManager()->setKeyboardModifiers(modifiersAfterStateChange);
QWindowSystemInterface::handleExtendedKeyEvent(nullptr,
pressed ? QEvent::KeyPress : QEvent::KeyRelease,
qtkey, modifiers, keycode, sym, modifiers, text);
if (pressed && xkb_keymap_key_repeats(m_keymap, keycode)) {
m_repeatData.qtkey = qtkey;
m_repeatData.mods = modifiers;
m_repeatData.nativeScanCode = keycode;
m_repeatData.virtualKey = sym;
m_repeatData.nativeMods = modifiers;
m_repeatData.unicodeText = text;
m_repeatData.repeatCount = 1;
m_repeatTimer.setInterval(REPEAT_DELAY);
m_repeatTimer.start();
} else if (m_repeatTimer.isActive()) {
m_repeatTimer.stop();
}
#else
Q_UNUSED(e);
#endif
}
#if QT_CONFIG(xkbcommon)
void QLibInputKeyboard::handleRepeat()
{
QWindowSystemInterface::handleExtendedKeyEvent(nullptr, QEvent::KeyPress,
m_repeatData.qtkey, m_repeatData.mods,
m_repeatData.nativeScanCode, m_repeatData.virtualKey, m_repeatData.nativeMods,
m_repeatData.unicodeText, true, m_repeatData.repeatCount);
m_repeatData.repeatCount += 1;
m_repeatTimer.setInterval(REPEAT_RATE);
m_repeatTimer.start();
}
#endif
QT_END_NAMESPACE
|