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#ifndef __APPLE__
#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) {
qWarning() << "grab key error for" << "keycode" << keycode;
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());
}
#endif
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