From 5e3cbfbb1a84a45a011b9d450e708b410d88fb2e Mon Sep 17 00:00:00 2001
From: Christopher Eby <kreed@kreed.org>
Date: Mon, 22 Feb 2010 19:06:20 -0600
Subject: [PATCH] Heed to phone calls

---
 AndroidManifest.xml                        |  1 +
 src/org/kreed/vanilla/PlaybackService.java | 42 ++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9fc37532..4b08c87f 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -26,4 +26,5 @@
 	</application>
 	<uses-sdk android:minSdkVersion="3"/>
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
+	<uses-permission android:name="android.permission.READ_PHONE_STATE" />
 </manifest>
\ No newline at end of file
diff --git a/src/org/kreed/vanilla/PlaybackService.java b/src/org/kreed/vanilla/PlaybackService.java
index 44e890c3..40daa200 100644
--- a/src/org/kreed/vanilla/PlaybackService.java
+++ b/src/org/kreed/vanilla/PlaybackService.java
@@ -29,6 +29,8 @@ import android.os.PowerManager;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
 import android.preference.PreferenceManager;
+import android.telephony.PhoneStateListener;
+import android.telephony.TelephonyManager;
 import android.util.Log;
 import android.widget.RemoteViews;
 import android.widget.Toast;
@@ -219,6 +221,27 @@ public class PlaybackService extends Service implements Runnable, MediaPlayer.On
 		}
 	};
 
+	private PhoneStateListener mCallListener = new PhoneStateListener() {
+		@Override
+		public void onCallStateChanged(int state, String incomingNumber)
+		{
+			int inCall = -1;
+
+			switch (state) {
+			case TelephonyManager.CALL_STATE_RINGING:
+			case TelephonyManager.CALL_STATE_OFFHOOK:
+				inCall = 1;
+				break;
+			case TelephonyManager.CALL_STATE_IDLE:
+				inCall = 0;
+				break;
+			}
+
+			if (mHandler != null)
+				mHandler.sendMessage(mHandler.obtainMessage(CALL, inCall, 0));
+		}
+	};
+
 	public void onSharedPreferenceChanged(SharedPreferences settings, String key)
 	{
 		if (mHandler != null)
@@ -243,6 +266,7 @@ public class PlaybackService extends Service implements Runnable, MediaPlayer.On
 	private int mQueuePos = 0;
 	private boolean mPlugged = true;
 	private int mState = STATE_NORMAL;
+	private boolean mPlayingBeforeCall;
 
 	private static final int SET_SONG = 0;
 	private static final int PLAY_PAUSE = 1;
@@ -254,6 +278,7 @@ public class PlaybackService extends Service implements Runnable, MediaPlayer.On
 	private static final int HANDLE_PLAY = 7;
 	private static final int HANDLE_PAUSE = 8;
 	private static final int RETRIEVE_SONGS = 9;
+	private static final int CALL = 10;
 
 	public void run()
 	{
@@ -319,6 +344,20 @@ public class PlaybackService extends Service implements Runnable, MediaPlayer.On
 				case RETRIEVE_SONGS:
 					retrieveSongs();
 					break;
+				case CALL:
+					boolean inCall = message.arg1 == 1;
+					if (inCall) {
+						if (mState == STATE_PLAYING) {
+							mPlayingBeforeCall = true;
+							pause();
+						}
+					} else {
+						if (mPlayingBeforeCall) {
+							play();
+							mPlayingBeforeCall = false;
+						}
+					}
+					break;
 				}
 			}
 		};
@@ -332,6 +371,9 @@ public class PlaybackService extends Service implements Runnable, MediaPlayer.On
 		PowerManager powerManager = (PowerManager)getSystemService(POWER_SERVICE);
 		mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VanillaMusicSongChangeLock");
 
+		TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
+		telephonyManager.listen(mCallListener, PhoneStateListener.LISTEN_CALL_STATE);
+
 		mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
 		mMediaPlayer.setWakeMode(this, PowerManager.PARTIAL_WAKE_LOCK);
 		mMediaPlayer.setOnCompletionListener(this);