84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
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/*
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* Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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**/
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#include "grab-x11.h"
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#include <QX11Info>
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#include <X11/Xlib.h>
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#include <xcb/xcb.h>
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class XServerGraber{
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public:
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XServerGraber() {
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xcb_grab_server(QX11Info::connection());
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}
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~XServerGraber() {
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xcb_ungrab_server(QX11Info::connection());
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xcb_flush(QX11Info::connection());
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}
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};
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static bool grabKeyboard()
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{
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int rv = XGrabKeyboard(QX11Info::display(), QX11Info::appRootWindow(),
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True, GrabModeAsync, GrabModeAsync, CurrentTime);
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return (rv == GrabSuccess);
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}
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static bool grabMouse()
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{
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#define GRABEVENTS ButtonPressMask | ButtonReleaseMask | PointerMotionMask | \
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EnterWindowMask | LeaveWindowMask | KeyPressMask | KeyReleaseMask
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int rv = XGrabPointer(QX11Info::display(), QX11Info::appRootWindow(),
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True, GRABEVENTS, GrabModeAsync, GrabModeAsync, None,
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None, CurrentTime);
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#undef GRABEVENTS
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return (rv == GrabSuccess);
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}
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bool establishGrab()
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{
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XSync(QX11Info::display(), False);
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XServerGraber xserverGraber;
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Q_UNUSED(xserverGraber);
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if(!grabKeyboard())
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return false;
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if(!grabMouse()) {
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XUngrabKeyboard(QX11Info::display(), CurrentTime);
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XFlush(QX11Info::display());
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return false;
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}
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return true;
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}
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bool closeGrab()
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{
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XSync(QX11Info::display(), False);
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XServerGraber xserverGraber;
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Q_UNUSED(xserverGraber);
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XUngrabKeyboard(QX11Info::display(), CurrentTime);
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XUngrabPointer(QX11Info::display(), CurrentTime);
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XFlush(QX11Info::display());
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return true;
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}
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