Exporting layer names but only visible layer

[marior90336416]

Hello all. What is wrong with this script that it doesn't export visible layer names?

// Bring application forward
app.bringToFront();

// Set active Document variable and decode name for output
var docRef = app.activeDocument;
var docName = decodeURI(activeDocument.name);

// Define pixels as unit of measurement
var defaultRulerUnits = preferences.rulerUnits;
preferences.rulerUnits = Units.PIXELS;

// Define variable for the number of layers in the active document
var layerNum = app.activeDocument.artLayers.length;

// Define variable for the active layer in the active document
var layerRef = app.activeDocument.activeLayer;

// Define a variable for layer names
var layerNames = "";

function pad(num, size) {
  var s = num+"";
  while (s.length < size) s = "0" + s;
  return s;
}

// Loop to iterate through all layers
function recurseLayers(currLayers) {
  for ( var i = currLayers.layers.length - 1; i >= 0; i-- ) {
    layerRef = currLayers.layers[i];
	
	// test if layer is visible
	if (layerRef.visible) {
    var name = layerRef.name.replace(/_/g, " ");
    name = name.charAt(0).toUpperCase() + name.slice(1);
    layerNames += name + "\n";
	 }

    //test if it's a layer set
    if ( isLayerSet(currLayers.layers[i]) ) {
      recurseLayers(currLayers.layers[i]);
    }
  }
}

//a test for a layer set
function isLayerSet(layer) {
  try {
    if ( layer.layers.length > 0 ) {
      return true;
    }
  }

  catch(err) {
    return false;
  }
}

// Ask the user for the folder to export to
var FPath = Folder.selectDialog("Save exported layer names to");

// Detect line feed type
if ( $.os.search(/windows/i) !== -1 ) {
  fileLineFeed = "Windows";
}
else {
  fileLineFeed = "Macintosh";
}

// Export to txt files
function writeFiles(info, fileName) {
  try {
    var f = new File(FPath + "/" + fileName + ".txt");
    f.remove();
    f.open('a');
    f.lineFeed = fileLineFeed;
    f.write(info);
    f.close();
  }
  catch(e){}
}

// Run the functions
recurseLayers(docRef);
preferences.rulerUnits = defaultRulerUnits;

// Set preferences back to user's defaults
writeFiles(layerNames, "layername");

// Show results
if ( FPath == null ) {
  alert("Export aborted", "Canceled");
}
else {
  alert("Exported " + layerNum + " layer names to " + FPath + "/layername.txt " + "using " + fileLineFeed + " line feeds.", "Success!");
}

 Any help is appreciated.

Thanks 

[marior90336416 · Accepted solution]

hmm the scripts work as intended when comment out the lines 9,10,85 which refers to preferences, units etc.

// Bring application forward
app.bringToFront();

// Set active Document variable and decode name for output
var docRef = app.activeDocument;
var docName = decodeURI(activeDocument.name);

// Define pixels as unit of measurement
//var defaultRulerUnits = preferences.rulerUnits;
//preferences.rulerUnits = Units.PIXELS;

// Define variable for the number of layers in the active document
var layerNum = app.activeDocument.artLayers.length;

// Define variable for the active layer in the active document
var layerRef = app.activeDocument.activeLayer;

// Define a variable for layer names
var layerNames = "";

function pad(num, size) {
  var s = num+"";
  while (s.length < size) s = "0" + s;
  return s;
}

// Loop to iterate through all layers
function recurseLayers(currLayers) {
  for ( var i = currLayers.layers.length - 1; i >= 0; i-- ) {
    layerRef = currLayers.layers[i];
	
	// test if layer is visible
	if (layerRef.visible) {
    var name = layerRef.name.replace(/_/g, " ");
    name = name.charAt(0).toUpperCase() + name.slice(1);
    layerNames += name + "\n";
	 }

    //test if it's a layer set
    if ( isLayerSet(currLayers.layers[i]) ) {
      recurseLayers(currLayers.layers[i]);
    }
  }
}

//a test for a layer set
function isLayerSet(layer) {
  try {
    if ( layer.layers.length > 0 ) {
      return true;
    }
  }

  catch(err) {
    return false;
  }
}

// Ask the user for the folder to export to
var FPath = Folder.selectDialog("Save exported layer names to");

// Detect line feed type
if ( $.os.search(/windows/i) !== -1 ) {
  fileLineFeed = "Windows";
}
else {
  fileLineFeed = "Macintosh";
}

// Export to txt files
function writeFiles(info, fileName) {
  try {
    var f = new File(FPath + "/" + fileName + ".txt");
    f.remove();
    f.open('a');
    f.lineFeed = fileLineFeed;
    f.write(info);
    f.close();
  }
  catch(e){}
}

// Run the functions
recurseLayers(docRef);
//preferences.rulerUnits = defaultRulerUnits;

// Set preferences back to user's defaults
writeFiles(layerNames, "layername");

// Show results
if ( FPath == null ) {
  alert("Export aborted", "Canceled");
}
else {
  alert("Exported " + layerNum + " layer names to " + FPath + "/layername.txt " + "using " + fileLineFeed + " line feeds.", "Success!");
}