sclass G22LAScriptIDE<A extends G22LAScript> {
  settable G22Utils g22utils;
  settable S noScriptSelectedMsg = "Please select or create a script to edit it";
  
  A script;
  
  SingleComponentPanel scp;
  JLeftArrowScriptIDE ide;
  
  *(G22Utils *g22utils) {}
  
  visualize {
    if (scp == null) scp = singleComponentPanel();
    loadScript(script);
    ret scp;
  }
  
  void setScript(A script) {
    if (this.script != script)
      loadScript(script);
  }
  
  void loadScript(A script) {
    this.script = script;
    if (scp == null) ret;
    if (script == null)
      scp.set(jcenteredlabel(noScriptSelectedMsg()));
    else {
      ide = g22utils.leftArrowIDE();
      modifyIDE(ide);
      ide.lvScript(varWithNotifyToLiveValue(S.class, script.varEditingText()));
      scp.set(wrapIDE(ide));
    }
  }
  
  swappable JComponent wrapIDE(JLeftArrowScriptIDE ide) {
    ret ide.visualize();
  }
  
  event settingUpIDE(JLeftArrowScriptIDE ide);
  
  swappable void modifyIDE(JLeftArrowScriptIDE ide) {
    ide.showTitle(false);
    settingUpIDE(ide);
  }
}

Began life as a copy of #1034345