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/****************************************************************************
**
** Copyright (C) Qxt Foundation. Some rights reserved.
**
** This file is part of the QxtGui module of the Qxt library.
**
** This library is free software; you can redistribute it and/or modify it
** under the terms of the Common Public License, version 1.0, as published
** by IBM, and/or under the terms of the GNU Lesser General Public License,
** version 2.1, as published by the Free Software Foundation.
**
** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
** FITNESS FOR A PARTICULAR PURPOSE.
**
** You should have received a copy of the CPL and the LGPL along with this
** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
** included with the source distribution for more information.
** If you did not receive a copy of the licenses, contact the Qxt Foundation.
**
** <http://libqxt.org> <foundation@libqxt.org>
**
****************************************************************************/
#include "qxtwindowsystem.h"
#include <QLibrary>
#include <QX11Info>
#include <X11/Xutil.h>
static void qxt_getWindowProperty(Window wid, Atom prop, int maxlen, Window** data, int* count)
{
Atom type = 0;
int format = 0;
unsigned long after = 0;
XGetWindowProperty(QX11Info::display(), wid, prop, 0, maxlen / 4, False, AnyPropertyType,
&type, &format, (unsigned long*) count, &after, (unsigned char**) data);
}
static QRect qxt_getWindowRect(Window wid)
{
QRect rect;
XWindowAttributes attr;
if (XGetWindowAttributes(QX11Info::display(), wid, &attr))
{
rect = QRect(attr.x, attr.y, attr.width, attr.height);
}
return rect;
}
WindowList QxtWindowSystem::windows()
{
static Atom net_clients = 0;
if (!net_clients)
net_clients = XInternAtom(QX11Info::display(), "_NET_CLIENT_LIST_STACKING", True);
int count = 0;
Window* list = 0;
qxt_getWindowProperty(QX11Info::appRootWindow(), net_clients, 1024 * sizeof(Window), &list, &count);
WindowList res;
for (int i = 0; i < count; ++i)
res += list[i];
XFree(list);
return res;
}
WId QxtWindowSystem::activeWindow()
{
Window focus;
int revert = 0;
Display* display = QX11Info::display();
XGetInputFocus(display, &focus, &revert);
return focus;
}
WId QxtWindowSystem::findWindow(const QString& title)
{
Window result = 0;
WindowList list = windows();
foreach(const Window &wid, list)
{
if (windowTitle(wid) == title)
{
result = wid;
break;
}
}
return result;
}
WId QxtWindowSystem::windowAt(const QPoint& pos)
{
Window result = 0;
WindowList list = windows();
for (int i = list.size() - 1; i >= 0; --i)
{
WId wid = list.at(i);
if (windowGeometry(wid).contains(pos))
{
result = wid;
break;
}
}
return result;
}
QString QxtWindowSystem::windowTitle(WId window)
{
QString name;
char* str = 0;
if (XFetchName(QX11Info::display(), window, &str))
{
name = QString::fromLatin1(str);
}
XFree(str);
return name;
}
QRect QxtWindowSystem::windowGeometry(WId window)
{
QRect rect = qxt_getWindowRect(window);
Window root = 0;
Window parent = 0;
Window* children = 0;
unsigned int count = 0;
Display* display = QX11Info::display();
if (XQueryTree(display, window, &root, &parent, &children, &count))
{
window = parent; // exclude decoration
XFree(children);
while (window != 0 && XQueryTree(display, window, &root, &parent, &children, &count))
{
XWindowAttributes attr;
if (parent != 0 && XGetWindowAttributes(display, parent, &attr))
rect.translate(QRect(attr.x, attr.y, attr.width, attr.height).topLeft());
window = parent;
XFree(children);
}
}
return rect;
}
typedef struct {
Window window; /* screen saver window - may not exist */
int state; /* ScreenSaverOff, ScreenSaverOn, ScreenSaverDisabled*/
int kind; /* ScreenSaverBlanked, ...Internal, ...External */
unsigned long til_or_since; /* time til or since screen saver */
unsigned long idle; /* total time since last user input */
unsigned long eventMask; /* currently selected events for this client */
} XScreenSaverInfo;
typedef XScreenSaverInfo* (*XScreenSaverAllocInfo)();
typedef Status (*XScreenSaverQueryInfo)(Display* display, Drawable* drawable, XScreenSaverInfo* info);
static XScreenSaverAllocInfo _xScreenSaverAllocInfo = 0;
static XScreenSaverQueryInfo _xScreenSaverQueryInfo = 0;
uint QxtWindowSystem::idleTime()
{
static bool xssResolved = false;
if (!xssResolved) {
QLibrary xssLib(QLatin1String("Xss"), 1);
if (xssLib.load()) {
_xScreenSaverAllocInfo = (XScreenSaverAllocInfo) xssLib.resolve("XScreenSaverAllocInfo");
_xScreenSaverQueryInfo = (XScreenSaverQueryInfo) xssLib.resolve("XScreenSaverQueryInfo");
xssResolved = true;
}
}
uint idle = 0;
if (xssResolved)
{
XScreenSaverInfo* info = _xScreenSaverAllocInfo();
const int screen = QX11Info::appScreen();
Qt::HANDLE rootWindow = QX11Info::appRootWindow(screen);
_xScreenSaverQueryInfo(QX11Info::display(), (Drawable*) rootWindow, info);
idle = info->idle;
XFree(info);
}
return idle;
}
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