Xtt crossreference window, segfault at double click fixed

src/msg/flow/src/flow_msg.msg

@@ -47,3 +47,4 @@ nonextsibling	<There is no next sibling>			/error
 destroyed       <Flow ctx is destroyed>                         /info
 no_propagate    <Don't propagate event handling>                /info
 fileopen        <Unable to open file>                           /error
+terminated      <Ctx is terminated>				/info

xtt/lib/flow/gtk/flow_draw_gtk.cpp

@@ -763,7 +763,10 @@ int FlowDrawGtk::event_handler( FlowCtx *ctx, GdkEvent event)
 	      sts = ctx->event_handler( flow_eEvent_MB1DoubleClickShiftCtrl, (int)event.button.x, (int)event.button.y, 0, 0);
 	    else
 	      sts = ctx->event_handler( flow_eEvent_MB1DoubleClick, (int)event.button.x, (int)event.button.y, 0, 0);
+	    if ( sts == FLOW__TERMINATED)
+	      return sts;
 	    click_sensitivity = 0;
+
 	    break;
 	  case 2: // Button2
 	    if ( (event.button.state & GDK_SHIFT_MASK) && 
@@ -2013,4 +2016,4 @@ FlowPrintDraw *FlowDrawGtk::print_draw_new( void *context, const char *title, in
   FlowPrintDrawGtk *pd = new FlowPrintDrawGtk( context, title, page, flow_ctx, 
 					       page_border, sts);
   return (FlowPrintDraw *)pd;
-}
+}
\ No newline at end of file

xtt/lib/xtt/src/xtt_xattnav.cpp

@@ -49,6 +49,7 @@
 #include "flow.h"
 #include "flow_browctx.h"
 #include "flow_browapi.h"
+#include "flow_msg.h"
 
 #include "xtt_xatt.h"
 #include "xtt_xattnav.h"
@@ -473,7 +474,7 @@ int XAttNav::brow_cb( FlowCtx *ctx, flow_tEvent event)
 				     ((ItemCrossref *)item)->ref_name);
 	  if ( xattnav->close_cb) {
 	    (xattnav->close_cb)( xattnav->parent_ctx);
-	    return 1;
+	    return FLOW__TERMINATED;
 	  }
 	}
 	break;
@@ -953,4 +954,4 @@ void XAttNav::zoom( double zoom_factor)
 void XAttNav::unzoom()
 {
   brow_UnZoom( brow->ctx);
-}
+}
\ No newline at end of file