1 files changed, 196 insertions, 0 deletions
diff --git a/kdeui/kdetrayproxy/kdetrayproxy.cpp b/kdeui/kdetrayproxy/kdetrayproxy.cpp
new file mode 100644
index 000000000..b41b337b3
--- /dev/null
+++ b/kdeui/kdetrayproxy/kdetrayproxy.cpp
@@ -0,0 +1,196 @@
+/*
+ *   Copyright (C) 2004 Lubos Lunak <[email protected]>
+ *
+ *   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