anchor.diff:        '<div id="header">'                && gc_newline &&
         '<h1>Stage</h1>'                   && gc_newline &&
         '<a href="sapevent:back">Back</a>' && gc_newline &&
  -      '<a href="sapevent:refresh">Refresh</a>' && gc_newline &&
         '</div>'                           && gc_newline &&
         '<div id="toc">'                   && gc_newline &&
         'Local:<br>' && gc_newline.
  
positive.code:     CASE iv_action.
        WHEN 'back'.
          lcl_gui=>back( ).
        WHEN 'refresh'.
          refresh( ).
          lcl_gui=>render( ).
        WHEN 'add'.
          ls_file = file_decode( iv_getdata ).
          mo_stage->add( ls_file ).
  
negative.code:     FIELD-SYMBOLS: <ls_file>  LIKE LINE OF lt_files,
                     <ls_tadir> LIKE LINE OF lt_tadir.
  
  
      IF lines( mt_local ) > 0.
        rt_files = mt_local.
        RETURN.
      ENDIF.
  
      lt_tadir = lcl_tadir=>read( get_package( ) ).
      LOOP AT lt_tadir ASSIGNING <ls_tadir>.
  