Output Android Assets.jsx

// Output Android Assets.jsx
// 2012 Jacopo Labardi www.facebook.com/jacopo.labardi
// License: none (public domain)
// v1.1
//
// The Original script is made by Todd Linkner, but I found it quite buggy
// I modified it to correct some bugs
//
// This scrip is for Photoshop CS6 only (32 & 64bit).
// It outputs Android XHDPI, HDPI, MDPI, and LDPI PNG assets
// from XHDPI source files in psd or png format. 
// The resulting PNGs will be placed in sub-folders within your target folder.

// My XHDPI all screen format is: 720x1280 320ppi

/*
// BEGIN__HARVEST_EXCEPTION_ZSTRING
<javascriptresource>
<name>$$$/JavaScripts/OutputAndroidAssets/MenuAlt=Output Android Assets</name>
<category>mobile</category>
</javascriptresource>
// END__HARVEST_EXCEPTION_ZSTRING
*/

// open Photoshop
#target "photoshop"

main();

function main() {
    // Ask user for source deletion
    var cleanup = confirm("This script outputs Android \r\r"
                        + " ->  XXHDPI, XXXHDPI, XHDPI, XHDPI, HDPI, TVDPI, MDPI, and LDPI <-\r\r"
                        + "PNG assets from XHDPI source files.\r\r"
                        + "Do you want to delete your original files when complete?");
    if (cleanup) {
       var cleanup2 = confirm("Are you REALLY sure you want to delete"
                        + "your .PSD SOURCE files?"); }
    
    // Ask user which format for source files
    var sformat = confirm("which is the extension of the source files? \r\r"
                                     +"Yes = psd\r"
                                     +"No = png")
    
    // Ask user for input folder
	var inputFolder = Folder.selectDialog("Select a folder to process");
	if (inputFolder == null) {
       alert ("No folder selected. Exting script.","Error!");
       return (0);
       }

	// get all PSD files in the input folder
    if (sformat) var fileList = inputFolder.getFiles("*.psd");
    else var fileList = inputFolder.getFiles("*.png")

	// Make output folders
	var dirxxxhdpi = Folder(inputFolder+"/drawable-xxxhdpi");
	if(!dirxxxhdpi.exists) dirxxxhdpi.create();
	
	var dirxxhdpi = Folder(inputFolder+"/drawable-xxhdpi");
	if(!dirxxhdpi.exists) dirxxhdpi.create();
	
	var dirxhdpi = Folder(inputFolder+"/drawable-xhdpi");
	if(!dirxhdpi.exists) dirxhdpi.create();
	
	var dirhdpi = Folder(inputFolder+"/drawable-hdpi");
	if(!dirhdpi.exists) dirhdpi.create();
	
	var dirtvdpi = Folder(inputFolder+"/drawable-tvdpi");
	if(!dirtvdpi.exists) dirtvdpi.create();
	
	var dirmdpi = Folder(inputFolder+"/drawable-mdpi");
	if(!dirmdpi.exists) dirmdpi.create();
	
	var dirldpi = Folder(inputFolder+"/drawable-ldpi");
	if(!dirldpi.exists) dirldpi.create();

	//	ldpi | mdpi | tvdpi | hdpi | xhdpi | xxhdpi | xxxhdpi
	//	0.75 | 1    | 1.33  | 1.5  | 2     | 3      | 4

	// Open each file in turn
	for (var i = 0; i < fileList.length; i++) {
		// Open file
		open(fileList[i]);
		
		// Make XXXHDPI
		resize(dirxxxhdpi);
		// Make XXHDPI
		resize(dirxxhdpi, '75%');
		// Make XHDPI
		resize(dirxhdpi, '50%');
		// Make HDPI
		resize(dirhdpi,'37.5%');
		// Make TVDPI
		resize(dirtvdpi,'33.25%');
		// Make MDPI
		resize(dirmdpi,'25%');
		// Make LDPI
		resize(dirldpi,'18.75%');
		
		// Close and do not save
		app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
		
		// Delete the original if required
		if (cleanup2) fileList[i].remove();
	}
    alert("Job Done!","Success");
}

function resize(dir,percent) {
    
    var ShowExtension = "n"; 
    // Setup file name
    var fname = app.activeDocument.name.replace(/\s+/g, '_').replace(/([a-z\d])([A-Z])/g, '$1_$2').toLowerCase();
    di=(fname).indexOf(".");
    fname2 = (fname).substr(0, di); 
    //use extension if set 
    if ( ShowExtension == "y" ) 
    { 
        fname2 = fname 
    } 

    // Set export options
    var opts, file;
    opts = new ExportOptionsSaveForWeb();
    opts.format = SaveDocumentType.PNG
    opts.transparency = true;
    opts.blur = 0.0
    opts.interlaced = false;
    opts.optimized = true;
    opts.includeProfile = false;
    opts.quality = 100 
    opts.PNG8 = false; 


    // Duplicate, resize and export
    var tempfile = app.activeDocument.duplicate();
    if (percent != undefined) tempfile.resizeImage(percent,percent);
    file = new File(dir+"/"+fname2+".png");
    tempfile.exportDocument(file, ExportType.SAVEFORWEB, opts);
    tempfile.close(SaveOptions.DONOTSAVECHANGES);
}