SVN commit 792196 by lunakl:

Make KDE4 applications restart in saved session using a wrapper script 'kde4'
if not running in a KDE4 session (http://lists.kde.org/?t=120569055200005&r=1&w=2).



 M  +2 -0      kdebase/runtime/CMakeLists.txt  
 AM            kdebase/runtime/kde4  
 M  +29 -0     kdelibs/kdeui/kernel/kapplication.cpp  


--- branches/KDE/4.0/kdebase/runtime/CMakeLists.txt #792195:792196
@@ -79,3 +79,5 @@
   macro_display_feature_log()
 endif(CMAKE_SOURCE_DIR STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}")
 
+########### install files ###############
+install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/kde4 DESTINATION ${BIN_INSTALL_DIR})
** branches/KDE/4.0/kdebase/runtime/kde4 #property svn:executable
   + *
--- branches/KDE/4.0/kdelibs/kdeui/kernel/kapplication.cpp #792195:792196
@@ -731,6 +731,34 @@
     d->session_save = false;
 }
 
+static void checkRestartVersion( QSessionManager& sm )
+{
+    Display* dpy = QX11Info::display();
+    Atom type;
+    int format;
+    unsigned long nitems, after;
+    unsigned char* data;
+    if( XGetWindowProperty( dpy, DefaultRootWindow( dpy ), XInternAtom( dpy, "KDE_SESSION_VERSION", False ),
+        0, 1, False, AnyPropertyType, &type, &format, &nitems, &after, &data ) == Success ) {
+        if( type == XA_INTEGER && format == 32 ) {
+            int version = *( long* ) data;
+            if( version == KDE_VERSION_MAJOR ) { // we run in our native session
+                XFree( data );
+                return; // no need to wrap
+            }
+        }
+        XFree( data );
+    }
+#define NUM_TO_STRING2( num ) #num
+#define NUM_TO_STRING( num ) NUM_TO_STRING2( num )
+    QString wrapper = KStandardDirs::findExe( "kde" NUM_TO_STRING( KDE_VERSION_MAJOR ) ); // "kde4", etc.
+#undef NUM_TO_STRING
+#undef NUM_TO_STRING2
+    QStringList restartCommand = sm.restartCommand();
+    restartCommand.prepend( wrapper );
+    sm.setRestartCommand( restartCommand );
+}
+
 void KApplication::saveState( QSessionManager& sm )
 {
     d->session_save = true;
@@ -784,6 +812,7 @@
         sm.setRestartCommand( restartCommand );
     }
 
+    checkRestartVersion( sm );
 
     // finally: do session management
     emit saveYourself(); // for compatibility