ExportXML.js

function exportXML(layer, file_path){

  //initialize the root xml element
  var root = [NSXMLElement elementWithName:@"document"];
  //initialize the xml object with the root element
  var xmlObj = [[NSXMLDocument document] initWithRootElement:root];

  //create the variables
  var layerName = layer.name();
  var layerFrame = layer.absoluteRect();
  var layerXpos = String(layerFrame.x());
  var layerYpos = String(layerFrame.y());
  var layerHeight = String(layerFrame.height());
  var layerWidth = String(layerFrame.width());

  //create the first child element and add it to the root
  var layerElement = [NSXMLElement elementWithName:@"layer"];
  [root addChild:layerElement];

  //add elements based on variables to the first child
  var layerNameElement = [NSXMLElement elementWithName:@"name" stringValue:layerName];
  [layerElement addChild:layerNameElement];

  var layerXPosElement = [NSXMLElement elementWithName:@"xPos" stringValue:layerXpos];
  [layerElement addChild:layerXPosElement];

  var layerYPosElement = [NSXMLElement elementWithName:@"yPos" stringValue:layerYpos];
  [layerElement addChild:layerYPosElement];

  var layerHeightElement = [NSXMLElement elementWithName:@"height" stringValue:layerHeight];
  [layerElement addChild:layerHeightElement];

  var layerWidthElement = [NSXMLElement elementWithName:@"width" stringValue:layerWidth];
  [layerElement addChild:layerWidthElement];

  //create the xml file
  var xmlData = [xmlObj XMLDataWithOptions:NSXMLNodePrettyPrint];

  //name the xml file the name of the layer and save it to the folder
  [xmlData writeToFile:file_path+layerName+".xml"];
  var alertMessage = layerName+".xml saved to: " + file_path;

  alert("Layer XML Exported!", alertMessage);

}