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
|
#include "../qxtglobalshortcut_p.h"
/****************************************************************************
** Copyright (c) 2006 - 2011, the LibQxt project.
** See the Qxt AUTHORS file for a list of authors and copyright holders.
** All rights reserved.
**
** 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 the LibQxt project 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 <COPYRIGHT HOLDER> 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.
**
** <http://libqxt.org> <foundation@libqxt.org>
*****************************************************************************/
#include <QVector>
#include <QApplication>
// include private header for great justice -sh 20131015
#include <X11/Xlib.h>
#include <xcb/xcb.h>
#include "qplatformnativeinterface.h"
namespace {
const QVector<quint32> maskModifiers = QVector<quint32>()
<< 0 << Mod2Mask << LockMask << (Mod2Mask | LockMask);
typedef int (*X11ErrorHandler)(Display *display, XErrorEvent *event);
class QxtX11ErrorHandler {
public:
static bool error;
static int qxtX11ErrorHandler(Display *display, XErrorEvent *event)
{
Q_UNUSED(display);
switch (event->error_code)
{
case BadAccess:
case BadValue:
case BadWindow:
if (event->request_code == 33 /* X_GrabKey */ ||
event->request_code == 34 /* X_UngrabKey */)
{
error = true;
//TODO:
//char errstr[256];
//XGetErrorText(dpy, err->error_code, errstr, 256);
}
}
return 0;
}
QxtX11ErrorHandler()
{
error = false;
m_previousErrorHandler = XSetErrorHandler(qxtX11ErrorHandler);
}
~QxtX11ErrorHandler()
{
XSetErrorHandler(m_previousErrorHandler);
}
private:
X11ErrorHandler m_previousErrorHandler;
};
bool QxtX11ErrorHandler::error = false;
class QxtX11Data {
public:
QxtX11Data()
{
#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
m_display = QX11Info::display();
#else
QPlatformNativeInterface *native = qApp->platformNativeInterface();
void *display = native->nativeResourceForScreen(QByteArray("display"),
QGuiApplication::primaryScreen());
m_display = reinterpret_cast<Display *>(display);
#endif
}
bool isValid()
{
return m_display != 0;
}
Display *display()
{
Q_ASSERT(isValid());
return m_display;
}
Window rootWindow()
{
return DefaultRootWindow(display());
}
bool grabKey(quint32 keycode, quint32 modifiers, Window window)
{
QxtX11ErrorHandler errorHandler;
for (int i = 0; !errorHandler.error && i < maskModifiers.size(); ++i) {
XGrabKey(display(), keycode, modifiers | maskModifiers[i], window, True,
GrabModeAsync, GrabModeAsync);
}
if (errorHandler.error) {
ungrabKey(keycode, modifiers, window);
return false;
}
return true;
}
bool ungrabKey(quint32 keycode, quint32 modifiers, Window window)
{
QxtX11ErrorHandler errorHandler;
foreach (quint32 maskMods, maskModifiers) {
XUngrabKey(display(), keycode, modifiers | maskMods, window);
}
return !errorHandler.error;
}
private:
Display *m_display;
};
} // namespace
#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
bool QxtGlobalShortcutPrivate::eventFilter(void *message)
{
XEvent *event = static_cast<XEvent *>(message);
if (event->type == KeyPress)
{
XKeyEvent *key = reinterpret_cast<XKeyEvent *>(event);
unsigned int keycode = key->keycode;
unsigned int keystate = key->state;
#else
bool QxtGlobalShortcutPrivate::nativeEventFilter(const QByteArray & eventType,
void *message, long *result)
{
Q_UNUSED(result);
xcb_key_press_event_t *kev = 0;
if (eventType == "xcb_generic_event_t") {
xcb_generic_event_t *ev = static_cast<xcb_generic_event_t *>(message);
if ((ev->response_type & 127) == XCB_KEY_PRESS)
kev = static_cast<xcb_key_press_event_t *>(message);
}
if (kev != 0) {
unsigned int keycode = kev->detail;
unsigned int keystate = 0;
if(kev->state & XCB_MOD_MASK_1)
keystate |= Mod1Mask;
if(kev->state & XCB_MOD_MASK_CONTROL)
keystate |= ControlMask;
if(kev->state & XCB_MOD_MASK_4)
keystate |= Mod4Mask;
if(kev->state & XCB_MOD_MASK_SHIFT)
keystate |= ShiftMask;
#endif
activateShortcut(keycode,
// Mod1Mask == Alt, Mod4Mask == Meta
keystate & (ShiftMask | ControlMask | Mod1Mask | Mod4Mask));
}
return false;
}
quint32 QxtGlobalShortcutPrivate::nativeModifiers(Qt::KeyboardModifiers modifiers)
{
// ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, and Mod5Mask
quint32 native = 0;
if (modifiers & Qt::ShiftModifier)
native |= ShiftMask;
if (modifiers & Qt::ControlModifier)
native |= ControlMask;
if (modifiers & Qt::AltModifier)
native |= Mod1Mask;
if (modifiers & Qt::MetaModifier)
native |= Mod4Mask;
// TODO: resolve these?
//if (modifiers & Qt::MetaModifier)
//if (modifiers & Qt::KeypadModifier)
//if (modifiers & Qt::GroupSwitchModifier)
return native;
}
quint32 QxtGlobalShortcutPrivate::nativeKeycode(Qt::Key key)
{
QxtX11Data x11;
if (!x11.isValid())
return 0;
KeySym keysym = XStringToKeysym(QKeySequence(key).toString().toLatin1().data());
if (keysym == NoSymbol)
keysym = static_cast<ushort>(key);
return XKeysymToKeycode(x11.display(), keysym);
}
bool QxtGlobalShortcutPrivate::registerShortcut(quint32 nativeKey, quint32 nativeMods)
{
QxtX11Data x11;
return x11.isValid() && x11.grabKey(nativeKey, nativeMods, x11.rootWindow());
}
bool QxtGlobalShortcutPrivate::unregisterShortcut(quint32 nativeKey, quint32 nativeMods)
{
QxtX11Data x11;
return x11.isValid() && x11.ungrabKey(nativeKey, nativeMods, x11.rootWindow());
}
|
