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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "keymonitorthread.h"
#include <X11/Xlibint.h>
KeyMonitorThread::KeyMonitorThread(QObject *parent) :
QThread(parent)
{
display = XOpenDisplay(0);
if (display == 0) {
qCritical("unable to open display\n");
return;
}
}
KeyMonitorThread::~KeyMonitorThread()
{
}
void KeyMonitorThread::run(){
// Display* display = XOpenDisplay(0);
// if (display == 0) {
// fprintf(stderr, "unable to open display\n");
// return;
// }
// Receive from ALL clients, including future clients.
XRecordClientSpec clients = XRecordAllClients;
XRecordRange* range = XRecordAllocRange();
if (range == 0) {
qCritical("unable to allocate XRecordRange\n");
return;
}
// Receive KeyPress, KeyRelease, ButtonPress, ButtonRelease and MotionNotify events.
memset(range, 0, sizeof(XRecordRange));
range->device_events.first = KeyPress;
range->device_events.last = MotionNotify;
// And create the XRECORD context.
XRecordContext context = XRecordCreateContext(display, 0, &clients, 1, &range, 1);
if (context == 0) {
qCritical("XRecordCreateContext failed\n");
return;
}
XFree(range);
XSync(display, True);
Display* display_datalink = XOpenDisplay(0);
if (display_datalink == 0) {
qCritical("unable to open second display\n");
return;
}
if (!XRecordEnableContext(display_datalink, context, callback, (XPointer) this)) {
qCritical("XRecordEnableContext() failed\n");
return;
}
}
void KeyMonitorThread::callback(XPointer ptr, XRecordInterceptData* data)
{
((KeyMonitorThread *) ptr)->handleRecordEvent(data);
}
void KeyMonitorThread::handleRecordEvent(XRecordInterceptData* data)
{
if (data->category == XRecordFromServer) {
xEvent * event = (xEvent *)data->data;
KeySym keySym = XKeycodeToKeysym(display, event->u.u.detail, 0);
KeyCode keyCode = XKeysymToKeycode(display, keySym);
switch (event->u.u.type) {
case ButtonPress:
if (filterWheelEvent(event->u.u.detail)) {
emit buttonPress(
event->u.keyButtonPointer.rootX,
event->u.keyButtonPointer.rootY);
}
break;
// case MotionNotify:
// if (isPress) {
// emit buttonDrag(
// event->u.keyButtonPointer.rootX,
// event->u.keyButtonPointer.rootY);
// }
// break;
// case ButtonRelease:
// if (filterWheelEvent(event->u.u.detail)) {
// isPress = false;
// emit buttonRelease(
// event->u.keyButtonPointer.rootX,
// event->u.keyButtonPointer.rootY);
// }
// break;
case KeyPress:
// emit keyPress(((unsigned char*) data->data)[1]);
emit keyPress(keySym, keyCode);
break;
case KeyRelease:
// emit keyRelease(((unsigned char*) data->data)[1]);
emit keyRelease(keySym, keyCode);
break;
default:
break;
}
}
fflush(stdout);
XRecordFreeData(data);
}
bool KeyMonitorThread::filterWheelEvent(int detail)
{
return detail != WheelUp && detail != WheelDown && detail != WheelLeft && detail != WheelRight;
}
void KeyMonitorThread::callJobComplete(){
emit jobComplete();
}
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