src/main/java/sbu/javafx/MusicController.java

@@ -19,7 +19,8 @@ public class MusicController {
     @FXML private ListView<String> lvSongs;
     @FXML private Label lblStatus;
     @FXML private Button btnPlayStop;
-    @FXML private Button btnViewPlaylist;
+
+    private int previousSongIndex = -1;
 
     private MediaPlayer mediaPlayer;
 
@@ -41,7 +42,7 @@ public class MusicController {
         String songName = "";
         if (a == 0) songName = "Arcade";
         else if (a == 1) songName = "How i love you";
-        else if (a == 2) songName = "Memmories";
+        else if (a == 2) songName = "Memories";
         else if (a == 3) songName = "Night Changes";
         else songName = "Careless Whisper";
 
@@ -52,65 +53,74 @@ public class MusicController {
     public void handlePlayAction()
     {
         String selectedSong = lvSongs.getSelectionModel().getSelectedItem();
+        int newSongIndex = lvSongs.getSelectionModel().getSelectedIndex();
+        boolean isNewSong = (newSongIndex != previousSongIndex);
+
         if (selectedSong == null)
         {
             lblStatus.setText("Please choose a song");
             return;
         }
 
-        String filePath = "src/main/resources/sbu.javafx/songs/" + songName(lvSongs.getSelectionModel().getSelectedIndex()) + ".mp3";
-        File file = new File(filePath);
+        if (isNewSong)
+        {
+            if (mediaPlayer != null)
+            {
+                mediaPlayer.dispose();
+                mediaPlayer = null;
+            }
 
-        boolean isPlayingOrPaused = (mediaPlayer != null &&
-                (mediaPlayer.getStatus() == MediaPlayer.Status.PLAYING ||
-                        mediaPlayer.getStatus() == MediaPlayer.Status.PAUSED));
+            String filePath = "src/main/resources/sbu/javafx/songs/" + songName(lvSongs.getSelectionModel().getSelectedIndex()) + ".mp3";
+            File file = new File(filePath);
 
-        if (isPlayingOrPaused)
+            try {
+                Media media = new Media(file.toURI().toString());
+                mediaPlayer = new MediaPlayer(media);
+
+                mediaPlayer.setOnEndOfMedia(new Runnable() {
+                    @Override
+                    public void run() {
+                        mediaPlayer.stop();
+                        btnPlayStop.setText("Play ▶");
+                        lblStatus.setText("Finished");
+                    }
+                });
+
+                mediaPlayer.play();
+                btnPlayStop.setText("Paused ⏸");
+                lblStatus.setText("Playing : " + songName(lvSongs.getSelectionModel().getSelectedIndex()));
+                previousSongIndex = newSongIndex;
+
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+        else
         {
             if (mediaPlayer.getStatus() == MediaPlayer.Status.PLAYING)
             {
                 mediaPlayer.pause();
-                btnPlayStop.setText("Paused ⏸");
-                lblStatus.setText("Playing : " + songName(lvSongs.getSelectionModel().getSelectedIndex()));
-                return;
+                btnPlayStop.setText("Play ▶");
+                lblStatus.setText("Paused");
             }
             else if (mediaPlayer.getStatus() == MediaPlayer.Status.PAUSED)
             {
                 mediaPlayer.play();
-                btnPlayStop.setText("Play ▶");
-                lblStatus.setText("Paused");
-                return;
+                btnPlayStop.setText("Pause ⏸");
+                lblStatus.setText("Playing: " + songName(lvSongs.getSelectionModel().getSelectedIndex()));
+            }
+            else
+            {
+                mediaPlayer.play();
+                btnPlayStop.setText("Pause ⏸");
+                lblStatus.setText("Playing: " + songName(lvSongs.getSelectionModel().getSelectedIndex()));
             }
-        }
-
-        if (mediaPlayer != null)
-        {
-            mediaPlayer.dispose();
-            mediaPlayer = null;
-        }
-
-        try {
-            Media media = new Media(file.toURI().toString());
-            mediaPlayer = new MediaPlayer(media);
-
-            mediaPlayer.setOnEndOfMedia(new Runnable() {
-                @Override
-                public void run() {
-                    mediaPlayer.stop();
-                    btnPlayStop.setText("Play ▶");
-                }
-            });
-
-            mediaPlayer.play();
-            btnPlayStop.setText("Paused ⏸");
-            lblStatus.setText("Playing : " + songName(lvSongs.getSelectionModel().getSelectedIndex()));
-        } catch (Exception e) {
-            throw new RuntimeException(e);
         }
     }
 
     //TODO: Logic to add a specific song to the user's playlist.
 
+    @FXML
     public void addToPlaylist()
     {
         String selectedSong = lvSongs.getSelectionModel().getSelectedItem();