kdetrayproxy.cpp
/*
* Copyright (C) 2004 Lubos Lunak <l.lunak@kde.org>
*
* 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 "kdetrayproxy.h"
#include <kapplication.h>
#include <kdebug.h>
#include <netwm.h>
#include <X11/Xlib.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
KDETrayProxy::KDETrayProxy()
: selection( makeSelectionAtom())
{
connect( &selection, SIGNAL( newOwner( Window )), SLOT( newOwner( Window )));
connect( &module, SIGNAL( windowAdded( WId )), SLOT( windowAdded( WId )));
selection.owner();
for( QValueList< WId >::ConstIterator it = module.windows().begin();
it != module.windows().end();
++it )
windowAdded( *it );
kapp->installX11EventFilter( this ); // XSelectInput( StructureNotifyMask ) on windows is done by KWinModule
// kdDebug() << "Init done" << endl;
}
Atom KDETrayProxy::makeSelectionAtom()
{
return XInternAtom( qt_xdisplay(), "_NET_SYSTEM_TRAY_S" + QCString().setNum( qt_xscreen()), False );
}
extern Time qt_x_time;
void KDETrayProxy::windowAdded( WId w )
{
NETWinInfo ni( qt_xdisplay(), w, qt_xrootwin(), NET::WMKDESystemTrayWinFor );
WId trayWinFor = ni.kdeSystemTrayWinFor();
if ( !trayWinFor ) // not a KDE tray window
return;
// kdDebug() << "New tray window:" << w << endl;
if( !tray_windows.contains( w ))
tray_windows.append( w );
withdrawWindow( w );
// window will be removed from pending_windows when after docked
if( !pending_windows.contains( w ))
pending_windows.append( w );
docked_windows.remove( w );
Window owner = selection.owner();
if( owner == None ) // no tray owner, sorry
{
// kdDebug() << "No owner, left in pending" << endl;
return;
}
dockWindow( w, owner );
}
void KDETrayProxy::newOwner( Window owner )
{
// kdDebug() << "New owner:" << owner << endl;
for( QValueList< Window >::ConstIterator it = pending_windows.begin();
it != pending_windows.end();
++it )
dockWindow( *it, owner );
// remove from pending_windows only in windowRemoved(), after it's really docked
}
bool KDETrayProxy::x11Event( XEvent* e )
{
if( tray_windows.isEmpty())
return false;
if( e->type == DestroyNotify && tray_windows.contains( e->xdestroywindow.window ))
{
tray_windows.remove( e->xdestroywindow.window );
pending_windows.remove( e->xdestroywindow.window );
docked_windows.remove( e->xdestroywindow.window );
}
if( e->type == ReparentNotify && tray_windows.contains( e->xreparent.window ))
{
if( e->xreparent.parent == qt_xrootwin())
{
if( !docked_windows.contains( e->xreparent.window ) || e->xreparent.serial >= docked_windows[ e->xreparent.window ] )
{
// kdDebug() << "Window released:" << e->xreparent.window << endl;
docked_windows.remove( e->xreparent.window );
if( !pending_windows.contains( e->xreparent.window ))
pending_windows.append( e->xreparent.window );
}
}
else
{
// kdDebug() << "Window away:" << e->xreparent.window << ":" << e->xreparent.parent << endl;
pending_windows.remove( e->xreparent.window );
}
}
if( e->type == UnmapNotify && tray_windows.contains( e->xunmap.window ))
{
if( docked_windows.contains( e->xunmap.window ) && e->xunmap.serial >= docked_windows[ e->xunmap.window ] )
{
// kdDebug() << "Window unmapped:" << e->xunmap.window << endl;
XReparentWindow( qt_xdisplay(), e->xunmap.window, qt_xrootwin(), 0, 0 );
// ReparentNotify will take care of the rest
}
}
return false;
}
void KDETrayProxy::dockWindow( Window w, Window owner )
{
// kdDebug() << "Docking " << w << " into " << owner << endl;
docked_windows[ w ] = XNextRequest( qt_xdisplay());
static Atom prop = XInternAtom( qt_xdisplay(), "_XEMBED_INFO", False );
long data[ 2 ] = { 0, 1 };
XChangeProperty( qt_xdisplay(), w, prop, prop, 32, PropModeReplace, (unsigned char*)data, 2 );
XSizeHints hints;
hints.flags = PMinSize | PMaxSize;
hints.min_width = 24;
hints.max_width = 24;
hints.min_height = 24;
hints.max_height = 24;
XSetWMNormalHints( qt_xdisplay(), w, &hints );
// kxerrorhandler ?
XEvent ev;
memset(&ev, 0, sizeof( ev ));
static Atom atom = XInternAtom( qt_xdisplay(), "_NET_SYSTEM_TRAY_OPCODE", False );
ev.xclient.type = ClientMessage;
ev.xclient.window = owner;
ev.xclient.message_type = atom;
ev.xclient.format = 32;
ev.xclient.data.l[ 0 ] = qt_x_time;
ev.xclient.data.l[ 1 ] = 0; // SYSTEM_TRAY_REQUEST_DOCK
ev.xclient.data.l[ 2 ] = w;
ev.xclient.data.l[ 3 ] = 0; // unused
ev.xclient.data.l[ 4 ] = 0; // unused
XSendEvent( qt_xdisplay(), owner, False, NoEventMask, &ev );
}
void KDETrayProxy::withdrawWindow( Window w )
{
XWithdrawWindow( qt_xdisplay(), w, qt_xscreen());
static Atom wm_state = XInternAtom( qt_xdisplay(), "WM_STATE", False );
for(;;)
{
Atom type;
int format;
unsigned long length, after;
unsigned char *data;
int r = XGetWindowProperty( qt_xdisplay(), w, wm_state, 0, 2,
False, AnyPropertyType, &type, &format,
&length, &after, &data );
bool withdrawn = true;
if ( r == Success && data && format == 32 )
{
withdrawn = ( *( long* )data == WithdrawnState );
XFree( (char *)data );
}
if( withdrawn )
return; // --->
struct timeval tm;
tm.tv_sec = 0;
tm.tv_usec = 10 * 1000; // 10ms
select(0, NULL, NULL, NULL, &tm);
}
}
#include "kdetrayproxy.moc"
#if 0
#include <kcmdlineargs.h>
int main( int argc, char* argv[] )
{
KCmdLineArgs::init( argc, argv, "a", "b", "c", "d" );
KApplication app( false ); // no styles
app.disableSessionManagement();
KDETrayProxy proxy;
return app.exec();
}
#endif
KApplication
KCmdLineArgs::init
static void init(int _argc, char **_argv, const char *_appname, const char *programName, const char *_description, const char *_version, bool noKApp=false)

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