/***************************************************************************
* Based on Licq *
* Copyright (C) 2006-2009 Licq developers *
* Copyright (C) 2011-2016 Ilya Kotov *
* *
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "windowsystem.h"
#include <QCoreApplication>
#ifdef Q_WS_X11
#include <QX11Info>
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#endif
#ifdef Q_WS_X11
void WindowSystem::ghostWindow(WId win)
{
Display* dsp = QX11Info::display();
Window root = DefaultRootWindow(dsp);
Atom win_state = XInternAtom(dsp, "_NET_WM_STATE", False);
Atom win_state_add = XInternAtom(dsp, "_NET_WM_STATE_ADD", False);
Atom win_state_settings[] =
{
XInternAtom(dsp, "_NET_WM_STATE_SKIP_TASKBAR", False),
XInternAtom(dsp, "_NET_WM_STATE_SKIP_PAGER", False)
};
XChangeProperty(dsp, win, win_state, XA_ATOM, 32, PropModeReplace,
reinterpret_cast<unsigned char*>(&win_state_settings), 2);
XEvent xev;
xev.type = ClientMessage;
xev.xclient.type = ClientMessage;
xev.xclient.display = dsp;
xev.xclient.window = win;
xev.xclient.message_type = win_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = win_state_add;
xev.xclient.data.l[1] = win_state_settings[0];
xev.xclient.data.l[2] = win_state_settings[1];
XSendEvent(dsp, root, false,
SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}
QString WindowSystem::netWindowManagerName()
{
Display* dsp = QX11Info::display();
WId root = DefaultRootWindow(dsp);
unsigned char* retValue1 = getWindowProperty(root, "_NET_SUPPORTING_WM_CHECK");
if (retValue1 == NULL)
return QString();
WId win = *(reinterpret_cast<unsigned long*>(retValue1));
unsigned char* retValue2 = getWindowProperty(win, "_NET_SUPPORTING_WM_CHECK");
if (retValue2 == NULL)
{
XFree(retValue1);
return QString();
}
if (win != *(reinterpret_cast<unsigned long*>(retValue2)))
{
XFree(retValue1);
XFree(retValue2);
return QString();
}
XFree(retValue2);
retValue2 = getWindowProperty(win, "_NET_WM_NAME");
XFree(retValue1);
if (retValue2 == NULL)
return QString();
QString name = QString((char *)retValue2);
XFree(retValue2);
return name;
}
void WindowSystem::changeWinSticky(WId win, bool stick)
{
qDebug("WindowSystem: setting sticky state of window 0x%lx to %s.",
static_cast<unsigned long>(win), stick ? "true" : "false");
Display* dsp = QX11Info::display();
Window root = DefaultRootWindow(dsp);
unsigned long desktop = ~(0UL);
if (!stick)
{
unsigned char* tmp = getWindowProperty(root, "_NET_CURRENT_DESKTOP");
if (tmp == NULL)
qWarning("WindowSystem: error reading current desktop property.");
else
{
desktop = *(reinterpret_cast<unsigned long*>(tmp));
XFree(tmp);
}
}
XEvent xev;
xev.type = ClientMessage;
xev.xclient.type = ClientMessage;
xev.xclient.display = dsp;
xev.xclient.window = win;
xev.xclient.message_type = XInternAtom(dsp, "_NET_WM_DESKTOP", False);
xev.xclient.format = 32;
xev.xclient.data.l[0] = desktop;
XSendEvent(dsp, root, False,
SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}
void WindowSystem::setWinHint(WId win, const char *res_name, const char *res_class)
{
Display* dsp = QX11Info::display();
XClassHint hint;
hint.res_name = strdup(res_name);
hint.res_class = strdup(res_class);
XSetClassHint(dsp, win, &hint);
free(hint.res_name);
free(hint.res_class);
}
unsigned char* WindowSystem::getWindowProperty(WId win, const char* prop)
{
Display* dsp = QX11Info::display();
// We inhibit new Atom creation since if you request for it
// then such Atom most probably exists already.
// Otherwise, no surprise we return NULL here.
Atom reqAtom = XInternAtom(dsp, prop, True);
if (reqAtom == None)
return NULL;
Atom retType = None;
int retFormat = 0;
unsigned long retItems = 0UL;
unsigned long retMoreBytes = 0UL;
unsigned char* retValue = NULL;
// Check if the property exists and calculate its length.
int retCheck = XGetWindowProperty(dsp, win,
reqAtom, 0L, 0L, False, AnyPropertyType,
&retType, &retFormat, &retItems, &retMoreBytes, &retValue);
// The value is most probably empty, since we requested to read
// only 0L length, thus, it's just useless...
if (retValue != NULL)
{
XFree(retValue);
retValue = NULL;
}
if (retCheck != Success ||
retType == None ||
retMoreBytes == 0)
return NULL;
// These are not needed for now.
retCheck = None;
retFormat = 0;
retItems = 0UL;
// Convert the byte length into 32bit multiples.
if (retMoreBytes % 4 != 0)
retMoreBytes += 4 - retMoreBytes % 4;
retMoreBytes /= 4;
// Now request the actual property value with correct length and type.
retCheck = XGetWindowProperty(dsp, win,
reqAtom, 0L, retMoreBytes, False, retType,
&retType, &retFormat, &retItems, &retMoreBytes, &retValue);
if (retCheck != Success ||
retMoreBytes != 0)
{
if (retValue != NULL)
XFree(retValue);
return NULL;
}
return retValue;
}
//On RTL locales Qt sets flag NorthEastGravity for windows.
//This function reverts these changes.
void WindowSystem::revertGravity(WId win)
{
Display* dsp = QX11Info::display();
XSizeHints sh;
memset(&sh, 0, sizeof(sh));
long unused;
XGetWMNormalHints(dsp, win, &sh, &unused);
sh.flags |= PWinGravity;
if(sh.win_gravity == NorthEastGravity)
sh.win_gravity = NorthWestGravity;
else
return;
sh.win_gravity = NorthWestGravity;
XSetWMNormalHints(dsp, win, &sh);
XSetWindowAttributes xs;
memset(&xs, 0, sizeof(xs));
xs.bit_gravity = NorthWestGravity;
XChangeWindowAttributes(dsp, win, CWBitGravity, &xs);
}
#endif
