Initial callback support in libvlc + example on how to use in the java bindings

[vlc] / bindings / java / org / videolan / jvlc / Audio.java

diff --git a/bindings/java/org/videolan/jvlc/Audio.java b/bindings/java/org/videolan/jvlc/Audio.java
index a0c53a65d98c9dcaefcbada5f7ce31078bb817ef..3e83f7d70cc8aa8fc045e66753633ae4e8e70136 100644 (file)
--- a/bindings/java/org/videolan/jvlc/Audio.java
+++ b/bindings/java/org/videolan/jvlc/Audio.java
@@ -1,41 +1,111 @@
 package org.videolan.jvlc;
 
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
 public class Audio implements AudioIntf {
-    
+
        private long libvlcInstance;
 
-       private native boolean  _getMute();
-    private native void                _setMute( boolean value );
-    private native void                _toggleMute();
-    private native int         _getVolume();
-    private native void                _setVolume( int volume );
-    
-    public Audio( long instance ) {
-       this.libvlcInstance = instance;
-    }
-    
-    public boolean getMute() throws VLCException {
-        return _getMute();
-    }
-
-    public void setMute(boolean value) throws VLCException {
-        _setMute( value );
-        
-    }
-    
-    public void toggleMute() throws VLCException {
-       _toggleMute();
-    }
-
-    public int getVolume() throws VLCException {
-        return _getVolume();        
-    }
-
-    public void setVolume(int volume) throws VLCException {
-        _setVolume( volume );
-        
-    }
-    
+       private native int _getTrack();
+
+       private native void _setTrack(int track);
+
+       private native int _getChannel();
+
+       private native void _setChannel(int channel);
+
+       private native boolean _getMute();
+
+       private native void _setMute(boolean value);
+
+       private native void _toggleMute();
+
+       private native int _getVolume();
+
+       private native void _setVolume(int volume);
+
+       private native void _install_callback();
+
+       private static Map objListeners = new HashMap();
+
+       public Audio(long instance) {
+               this.libvlcInstance = instance;
+               install_callaback();
+       }
+
+       private void install_callaback() {
+               objListeners.put(this, new HashSet());
+               _install_callback();
+       }
+
+       public int getTrack() throws VLCException {
+               return _getTrack();
+       }
+
+       public void setTrack(int track) throws VLCException {
+               _setTrack(track);
+       }
+
+       public int getChannel() throws VLCException {
+               return _getChannel();
+       }
+
+       public void setChannel(int channel) throws VLCException {
+               _setChannel(channel);
+       }
+
+       public boolean getMute() throws VLCException {
+               return _getMute();
+       }
+
+       public void setMute(boolean value) throws VLCException {
+               _setMute(value);
+
+       }
+
+       public void toggleMute() throws VLCException {
+               _toggleMute();
+       }
+
+       public int getVolume() throws VLCException {
+               return _getVolume();
+       }
+
+       public void setVolume(int volume) throws VLCException {
+               _setVolume(volume);
+       }
+
+       public boolean addVolumeListener(VolumeListener listener) {
+               HashSet listeners = (HashSet) objListeners.get(this);
+               return listeners.add(listener);
+       }
+
+       public boolean removeVolumeListener(VolumeListener listener) {
+               HashSet listeners = (HashSet) objListeners.get(this);
+               return listeners.remove(listener);
+       }
+
+       // this method is invoked natively
+       private static void wakeupListeners() {
+               Set audioObjects = objListeners.keySet();
+               Iterator audioObjectsIterator = audioObjects.iterator();
+               
+               while (audioObjectsIterator.hasNext()) {
+                       Audio audioObject = (Audio) audioObjectsIterator.next();
+                       HashSet listeners = (HashSet) objListeners.get(audioObject);
+
+                       Iterator listenerIterator = listeners.iterator();
+                       while (listenerIterator.hasNext()) {
+                               VolumeListener listener = (VolumeListener) listenerIterator.next();
+                               listener.volumeChanged();
+                       }
+               }
+       }
+
        public long getInstance() {
                return libvlcInstance;
        }