Added export fonts information

ps-export-layers-to-png.jsx

#target photoshop
// $.level = 2;

/*
 *  Script by Tomek Cejner (tomek (at) japko dot info)
 *  based on work of Damien van Holten:
 *  http://www.damienvanholten.com/blog/export-groups-to-files-photoshop/
 *
 *  My version adds support of nested layer groups, 
 *  and exports single layers in addition to groups. 
 *
 *  added by Piotr Jaworski
 *  export fonts information to css file (not proper css but to easy close/open nodes in notepad++ )
 */
var fonts_family = {};
var fonts_size = {};
var fonts_color = {};
var fonts_color_error = {errors:[]};

var oldPath = activeDocument.path;

var outputFontsStat = new File(oldPath + "/out/" + activeDocument.name + "fonts_stat.css" );
outputFontsStat.open("w");

function main(){
	if(!documents.length) return;
	var doc = activeDocument;


	var outFolder = new Folder(oldPath + "/out");
	if (!outFolder.exists) {
		outFolder.create();
	}
	
    var outputFonts = new File(oldPath + "/out/" + activeDocument.name + "fonts.css" );
    outputFonts.open("w");

	scanLayerSets(doc);

	function scanLayerSets(el) {
		// find layer groups
		for(var a=0;a<el.layerSets.length;a++){
			var lname = el.layerSets[a].name;
				
			if (lname.substr(-4) == ".png") {
				saveLayer(el.layers.getByName(lname), lname, oldPath, true);
			} else {
				outputFonts.write( 
				"\n## START " + lname  + "##{\n");
				// recursive
				scanLayerSets(el.layerSets[a]);
				outputFonts.write( 
				"\n}## END " + lname  + "##\n");
			}
		}
		

		// find plain layers in current group whose names end with .png
		for(var j=0; j<el.artLayers.length; j++) {
			var name = el.artLayers[j].name;
			if (name.substr(-4) == ".png") {
				saveLayer(el.layers.getByName(name), name, oldPath, false);
			}
			doc.activeLayer = el.layers[j]
			if (doc.activeLayer.kind == LayerKind.TEXT)
			{
				try {
					if(typeof doc.activeLayer.textItem.color == 'undefined'){
						var colorTmp = "#undefined";
					}else{
						var colorTmp = "#" + doc.activeLayer.textItem.color.rgb.hexValue;
					}
					var error = false;
				}
				catch(err) {
					var colorTmp = "#error";
					var error = "color error:" + err.name + " " + err.message;
					fonts_color_error.errors.push(error);
				}
				

				outputFonts.write( 
				"\n/* " + 
				doc.activeLayer.textItem.contents + " */{\n" + 
				"font-family:  " + doc.activeLayer.textItem.font +";\n" +
				"font-size: " + doc.activeLayer.textItem.size +";\n" +
				"color: " + colorTmp + ";\n}\n");
				
				if(error){
					outputFonts.write(
					"\n/* ERROR */{\n" + 
					error + "\n}\n");
				}
				
				if(typeof fonts_family[doc.activeLayer.textItem.font] == 'undefined'){
					fonts_family[doc.activeLayer.textItem.font] = 0;
				}
				fonts_family[doc.activeLayer.textItem.font]++;
				
				if(typeof fonts_size[doc.activeLayer.textItem.size] == 'undefined'){
					fonts_size[doc.activeLayer.textItem.size] = 0;
				}
				fonts_size[doc.activeLayer.textItem.size]++;
				
				if(typeof fonts_color[colorTmp] == 'undefined'){
					fonts_color[colorTmp] = 0;
				}
				fonts_color[colorTmp]++;
			}
		}

	}

	function saveLayer(layer, lname, path, shouldMerge) {
		activeDocument.activeLayer = layer;
		dupLayers();
		if (shouldMerge === undefined || shouldMerge === true) {
			activeDocument.mergeVisibleLayers();
		}
		activeDocument.trim(TrimType.TRANSPARENT,true,true,true,true);
		var saveFile= File(path +"/out/"+lname);
		SavePNG(saveFile);
		app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
	}

};

main();

for (var key in fonts_family) {
  if (fonts_family.hasOwnProperty(key)){
    outputFontsStat.write("\n" + key + ": " + fonts_family[key]);
	}
}
outputFontsStat.write("\n");
for (var key in fonts_size) {
  if (fonts_size.hasOwnProperty(key)){
    outputFontsStat.write("\n" + key + ": " + fonts_size[key]);
	}
}
outputFontsStat.write("\n");
for (var key in fonts_color) {
  if (fonts_color.hasOwnProperty(key)){
    outputFontsStat.write("\n" + key + ": " + fonts_color[key]);
	}
}
outputFontsStat.write("\n");
for (var key in fonts_color_error.errors) {
  if (fonts_color_error.errors.hasOwnProperty(key)){
    outputFontsStat.write("\n" + key + ": " + fonts_color_error.errors[key]);
	}
}


function dupLayers() { 
    var desc143 = new ActionDescriptor();
        var ref73 = new ActionReference();
        ref73.putClass( charIDToTypeID('Dcmn') );
    desc143.putReference( charIDToTypeID('null'), ref73 );
    desc143.putString( charIDToTypeID('Nm  '), activeDocument.activeLayer.name );
        var ref74 = new ActionReference();
        ref74.putEnumerated( charIDToTypeID('Lyr '), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') );
    desc143.putReference( charIDToTypeID('Usng'), ref74 );
    executeAction( charIDToTypeID('Mk  '), desc143, DialogModes.NO );
};

function SavePNG(saveFile){
    var pngOpts = new PNGSaveOptions; 
	pngOpts.compression = 7; 
	pngOpts.interlaced = false; 
	activeDocument.saveAs(saveFile, pngOpts, true, Extension.LOWERCASE); 
}