Export to txt a list of grouped objects and their coordinates in Adobe Indesign (tested on CS6)

export_grouped_objects_coordinates.jsx

//Download sample file: https://www.dropbox.com/s/2ng7oyjnfjk9pm2/indesign-coordinates-test-file.indd.zip?dl=0

app.activeDocument.viewPreferences.rulerOrigin = RulerOrigin.PAGE_ORIGIN; 

var myDocument = app.activeDocument;
var activeLayer = myDocument.activeLayer; 

if(!activeLayer.visible) {
  alert("The selected layer: '"+ activeLayer.name +"' is not visible." + '\n' + "Make it visible and try again."); exit();
} else {
  // duplicateLayer(activeLayer);
}

list = [];  

// Add first line. Useful when importing into Excel
list.push ('Project Name \t X Coord \t Y Coord');


// get all groups on the active layer. We will call them "post its"
postIts = activeLayer.groups.everyItem().getElements();


for (var i = 0; i < postIts.length; i++) {    

    //if the post-it is grouped twice whe need ungroup it first
    if (postIts[i].textFrames.length == 0) {      
      
      DoublePostIt = postIts[i];

      DoublePostIt.ungroup();
      
    } else {          
      getProperties(postIts[i]);
    }

}

function getProperties(item) {
    
    /*
    Geometric bounds and visible bounds are arrays containing four coordinates, 
    which define (in order) the top, left, bottom, and right edges of the object’s bounding box,  (y1, x1, y2, x2).
    */
   
    var top  = roundMe(item.geometricBounds[0]);
    var left  = roundMe(item.geometricBounds[1]);
    var bottom  = roundMe(item.geometricBounds[2]);
    var right  = roundMe(item.geometricBounds[3]);
    
    var x  = roundMe([right - left]/2 + left);
    var y  = roundMe([bottom - top]/2 + top);

    list.push ( item.textFrames[0].contents + '\t' + x +'\t'+ y);
  
}

if(list.length < postIts.length) { //if there is post-its remaining to be processed
  
  alert("You need to run the script again." + '\n' + "There are post-its grouped twice on the layer: '"+ activeLayer.name);
  
  exit();

} else {
  exportFile(); 
  // alert(list);
}

function exportFile() {
  defaultFile = new File (Folder.myDocuments+"/"+app.activeDocument.name.replace(/\.indd$/i, '')+".txt");  

  if (File.fs == "Windows")
  writeFile = defaultFile.saveDlg( 'Save report', "Plain text file:*.txt;All files:*.*" );
  else
  writeFile = defaultFile.saveDlg( 'Save report');

  if (writeFile != null) {  
    if (writeFile.open("w")) 
      if (File.fs == "Windows") writeFile.encoding = "utf8";
      else writeFile.encoding = "Western"; // so Excel get the accents right
      //write list contents
      writeFile.write (list.join("\r")+"\r");  
      writeFile.close();
  }  
}

/*------------------------------
  UTILITIES
------------------------------*/
function roundMe(val,to)  { 
  //round with 'to' decimal places
  // default zero
  var t = 1;  
  while (to-- > 0) t *= 10;  
  return Math.round(val*t)/t;  
}