Posted by kmo on Aug 25, 2014; 9:10am
URL: https://forum.world.st/Phobos-Using-open-and-save-dialogs-tp4774528p4774537.html

It's Ok I think I've got it.

You can add a method like this to your main.js:

function doFileOpen() {
  /* See: http://developer.mozilla.org/en/docs/XUL_Tutorial:Open_and_Save_Dialogs */
 
  var nsIFilePicker = Components.interfaces.nsIFilePicker;
  var fp = Components.classes["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker);

  fp.init(window, "Open File", nsIFilePicker.modeOpen);
  fp.appendFilters(nsIFilePicker.filterText | nsIFilePicker.filterAll);
 
  var res = fp.show();
  if (res == nsIFilePicker.returnOK) {
    var thefile = fp.file;
    return(thefile.leafName);
    // --- do something with the file here ---
  }  
}

Then call it from pharo with an evaluateJS method - if you return the filename from the javascript method pharo can pick it up:

MyPhobosComponent>>getFilename
|res|

        res:= self evaluateJS:'doFileOpen();'.

Of course, you could build the entire javascript method as a string in pharo and call it using evaluteJS but it's simpler to put it into main.js as deaing with embedded quotes is fiddly.