/*
* Created on Jun 27, 2005
*/
package org.flexdock.demos.raw.jmf;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Label;
import java.awt.Panel;
import java.awt.TextArea;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import javax.media.ControllerEvent;
import javax.media.ControllerListener;
import javax.media.EndOfMediaEvent;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;
import javax.media.Time;
import org.flexdock.docking.DockingStub;
import org.flexdock.util.ResourceManager;
/**
* @author Christopher Butler
*/
public class MediaPanel extends Panel implements DockingStub {
private Player player;
private Label titlebar;
private String dockingId;
public MediaPanel(String id, String title, String mediaFileName) {
dockingId = id;
setLayout(new BorderLayout());
titlebar = new Label(title);
titlebar.setBackground(new Color(183, 201, 217));
add(titlebar, BorderLayout.NORTH);
player = createPlayer(mediaFileName);
if (player != null) {
Component viewscreen = player.getVisualComponent();
Component controls = player.getControlPanelComponent();
if (viewscreen != null) {
add(viewscreen, BorderLayout.CENTER);
} else {
TextArea ta = new TextArea("No JMF video playback support for '" + mediaFileName + "'");
ta.setEditable(false);
add(ta, BorderLayout.CENTER);
}
if (controls != null)
add(controls, BorderLayout.SOUTH);
} else {
TextArea ta = new TextArea("No JMF decoder support for '" + mediaFileName + "'");
ta.setEditable(false);
add(ta, BorderLayout.CENTER);
}
}
private static synchronized Player createPlayer(String mediaUri) {
try {
URL url = replaceJarUrlWithFileUrl(ResourceManager.getResource(mediaUri), mediaUri);
MediaLocator locator = new MediaLocator(url);
final Player mediaPlayer = Manager.createRealizedPlayer(locator);
// add a listener to put us in an infinite loop
mediaPlayer.addControllerListener(new ControllerListener() {
public void controllerUpdate(ControllerEvent evt) {
if(evt instanceof EndOfMediaEvent) {
mediaPlayer.setMediaTime(new Time(0));
mediaPlayer.start();
}
}
});
return mediaPlayer;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
private static HashMap jarUrlToTempFileCache = new HashMap();
/**
* JMF doesn't realize a player/viewer for URLs pointing to resources inside jars.
* To workaround this problem, the jar resource will be written to a temp file
* and the URL replaced with an url pointing to the temp file.
* I'd promote this into ResourceManager, but it appears to be isolated to JMF, so it'll stay here for now.
*
* @param url url with jar in i
* @param mediaUri name of the original resource in t
* @return
* @throws IOException
*/
private static URL replaceJarUrlWithFileUrl(URL url, String mediaUri) throws IOException {
if(!url.getProtocol().equals("jar"))
return url;
File f;
synchronized(jarUrlToTempFileCache) {
f = (File)jarUrlToTempFileCache.get(url);
if(f != null && f.exists() && f.isFile() && f.canRead())
return f.toURL();
f = File.createTempFile("flexdock-", mediaUri);
f.deleteOnExit();
FileOutputStream fos = new FileOutputStream(f);
BufferedOutputStream bos = new BufferedOutputStream(fos);
byte[] b = new byte[4096];
URLConnection conn = url.openConnection();
InputStream is = conn.getInputStream();
int read;
while((read=is.read(b, 0, b.length)) != -1)
bos.write(b, 0, read);
bos.close();
jarUrlToTempFileCache.put(url, f);
}
return f.toURL();
}
protected void finalize() {
if(player!=null) {
player.stop();
player.close();
player = null;
}
}
public Component getDragSource() {
return titlebar;
}
public Component getFrameDragSource() {
return titlebar;
}
public String getPersistentId() {
return dockingId;
}
public String getTabText() {
return titlebar.getText();
}
}