Question

Is it possible to ‘chain’ functions? Say, I have a serverclickhandler and then would like to invoke another function after it right away. How do I go about it?

Thanks.

Answer 1

To have a second handler executed after the first one you just need to call it directly from your first handler, e.g.

var app = null;
function firstHandler(e) {
  if( app == null )
    app = UiApp.getActiveApplication();
  //do your thing

  //now, instead "return app;" you return the second handler
  return secondHandler(e);
}

function secondHandler(e) {
  if( app == null )
    app = UiApp.getActiveApplication();
  //do your job
  return app;
}

I placed the app var on a global scope so you can get it only when necessary (sharing it between the functions without explicit passing it), saving a possibly costly and unknown behavior (to me at least) of a second getActiveApplication() call.