<window id="devWindow" apply="test.EntryComposer"
	title="ZK Version: ${desktop.webApp.version}">

	<div>
		Fileupload: <button id="upload" label="Upload" />
	</div>	
</window>

package test;

import java.util.logging.Logger;

import org.zkoss.util.media.Media;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.ui.event.SerializableEventListener;
import org.zkoss.zk.ui.event.UploadEvent;
import org.zkoss.zk.ui.util.GenericForwardComposer;
import org.zkoss.zul.Fileupload;
import org.zkoss.zul.Window;

public class EntryComposer extends GenericForwardComposer {

	private final static long serialVersionUID = -6886252025064558162L;
	private Window devWindow;
    
	@Override
	public void doAfterCompose(Component comp) throws Exception {
		super.doAfterCompose(comp);

		devWindow.addEventListener(Events.ON_UPLOAD, new SerializableEventListener() {
			private static final long serialVersionUID = -4371040477798783952L;

			public void onEvent(Event event) throws Exception {
				handleFileUpload((UploadEvent)event);
			}
		});
	}

	public void onClick$upload() {
		try {
			int maxFiles = 3; 
			int maxSize = 104857600; 
			boolean alwaysNative = true;
			
			// always returns null, handle UploadEvent in listener 
			Fileupload.get("message", "title", maxFiles, maxSize, alwaysNative);
		} catch (Exception e) {
			System.out.println("{} Upload failed onClick$upload()");			
		} 
	}
		
	public void handleFileUpload(UploadEvent event)  {
		try {
			Media[] multiMedia = event.getMedias();
			
			for (Media uploadedMedia : multiMedia) {				
				System.out.println("{} Media inMemory? {} handleFileUpload()"+ uploadedMedia.inMemory());			
				System.out.println("{} Media isBinary? {} handleFileUpload()"+ uploadedMedia.isBinary());			
			}
		} catch (Exception e) {
		} 
	}
}