#! /usr/dt/bin/dtksh

##########################################################################
#  (c) Copyright 1993, 1994 Hewlett-Packard Company	
#  (c) Copyright 1993, 1994 International Business Machines Corp.
#  (c) Copyright 1993, 1994 Sun Microsystems, Inc.
#  (c) Copyright 1993, 1994 Unix System Labs, Inc., a subsidiary of
#      Novell, Inc.
##########################################################################


#
# This sample shell script demonstrates the steps necessary for tying into
# session management.  To run, simply run this script, and then save the
# current session.  When the session is restored, this script should again
# restore to its previous state.
#


# This function is invoked when the user attempts to save the current session.
# It will save off its state information (whether it is iconified, and the
# list of workspaces it occupies) into a session file, and then tell the
# session manager how to reinvoke it when the session is restored.
SessionCallback()
{
#  Get the name of our session file
   if DtSessionSavePath $TOPLEVEL PATH SAVEFILE; then
      exec 9>$PATH

#     Save our iconification state
      if DtShellIsIconified $TOPLEVEL ; then
         print -u9 'Iconified'
      else
         print -u9 'Deiconified'
      fi

#     Save the list of workspace we occupy
      if DtWsmGetWorkspacesOccupied $(XtDisplay "-" $TOPLEVEL)                                     $(XtWindow "-" $TOPLEVEL)                                     CURRENT_WS_LIST ;
      then
         oldIFS=$IFS
         IFS=","
         for item in $CURRENT_WS_LIST; 
         do
            XmGetAtomName NAME $(XtDisplay "-" $TOPLEVEL) $item
            print -u9 $NAME
         done
         IFS=$oldIFS
      fi

      exec 9<&-

#     Tell the session manager how to restart us
      DtSetStartupCommand $TOPLEVEL 		   "/usr/dt/examples/dtksh/SessionTest $SAVEFILE"
   else
      echo "DtSessionSavePath FAILED!!"
      exit -3
   fi
}


# This function is invoked when we are restarted at session restore time.
# It is passed the name of the session file as $1.  It will extract our
# session information from the session file, and will restore our state
# accordingly.
RestoreSession()
{
#  Get the full path of our session file
   if DtSessionRestorePath $TOPLEVEL PATH $1; then
      exec 9<$PATH
      read -u9 ICONIFY

#     Restore our iconification state
      case $ICONIFY in
         Iconified) DtSetIconifyHint $TOPLEVEL True;;
         *)         DtSetIconifyHint $TOPLEVEL False;;
      esac

#     Place us into the indicated set of workspaces
      WS_LIST=""
      while read -u9 NAME
      do
         XmInternAtom ATOM $(XtDisplay "-" $TOPLEVEL) $NAME False
         if [ ${#WS_LIST} -gt 0 ]; then
            WS_LIST=$WS_LIST,$ATOM
         else
            WS_LIST=$ATOM
         fi
      done

      DtWsmSetWorkspacesOccupied $(XtDisplay "-" $TOPLEVEL)                                  $(XtWindow "-" $TOPLEVEL)                                  $WS_LIST

      exec 9<&-
   else
      echo "DtSessionRestorePath FAILED!!"
      exit -3
   fi
}



######################### Create the Main UI #################################

XtInitialize TOPLEVEL wmProtTest WmProtTest "$0" "$@"

XtCreateManagedWidget DA da XmDrawingArea $TOPLEVEL
XtSetValues $DA height:200 width:200

XmInternAtom SAVE_SESSION_ATOM $(XtDisplay "-" $TOPLEVEL) "WM_SAVE_YOURSELF" False


# If we are invoked with any command line parameters, then we will assume
# that it is the name of our session file, and will restore to the indicated
# state.
if (( $# > 0))
then
   XtSetValues $TOPLEVEL mappedWhenManaged:False
   XtRealizeWidget $TOPLEVEL
   XSync $(XtDisplay "-" $TOPLEVEL) False
   RestoreSession $1
   XtSetValues $TOPLEVEL mappedWhenManaged:True
   XtPopup $TOPLEVEL GrabNone
else
   XtRealizeWidget $TOPLEVEL
   XSync $(XtDisplay "-" $TOPLEVEL) False
fi

# Register our interest in participating in session management.
XmAddWMProtocols $TOPLEVEL $SAVE_SESSION_ATOM
XmAddWMProtocolCallback $TOPLEVEL $SAVE_SESSION_ATOM SessionCallback

XtMainLoop