From 001c59c6374a171a0bd3bd969744be6a4318efce Mon Sep 17 00:00:00 2001
From: RoboErik <epastern@google.com>
Date: Mon, 26 Jan 2015 15:53:51 -0800
Subject: Route volume keys directly to the audio system on TVs

This routes volume and mute keys directly to the audio system when
on a television instead of letting apps or sessions intercept them.

Change-Id: I2af47e30c7842aca96d045a6cc9ca025b94e546a
---
 media/java/android/media/AudioService.java         | 36 ++++++++++++++--------
 .../media/session/MediaSessionLegacyHelper.java    |  2 +-
 2 files changed, 25 insertions(+), 13 deletions(-)

(limited to 'media')

diff --git a/media/java/android/media/AudioService.java b/media/java/android/media/AudioService.java
index d96fee6..98a43a8 100644
--- a/media/java/android/media/AudioService.java
+++ b/media/java/android/media/AudioService.java
@@ -153,11 +153,11 @@ public class AudioService extends IAudioService.Stub {
     private final AppOpsManager mAppOps;
 
     // the platform has no specific capabilities
-    private static final int PLATFORM_DEFAULT = 0;
+    public static final int PLATFORM_DEFAULT = 0;
     // the platform is voice call capable (a phone)
-    private static final int PLATFORM_VOICE = 1;
+    public static final int PLATFORM_VOICE = 1;
     // the platform is a television or a set-top box
-    private static final int PLATFORM_TELEVISION = 2;
+    public static final int PLATFORM_TELEVISION = 2;
     // the platform type affects volume and silent mode behavior
     private final int mPlatformType;
 
@@ -546,15 +546,7 @@ public class AudioService extends IAudioService.Stub {
         mContentResolver = context.getContentResolver();
         mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
 
-        if (mContext.getResources().getBoolean(
-                com.android.internal.R.bool.config_voice_capable)) {
-            mPlatformType = PLATFORM_VOICE;
-        } else if (context.getPackageManager().hasSystemFeature(
-                                                            PackageManager.FEATURE_LEANBACK)) {
-            mPlatformType = PLATFORM_TELEVISION;
-        } else {
-            mPlatformType = PLATFORM_DEFAULT;
-        }
+        mPlatformType = getPlatformType(context);
 
         PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
         mAudioEventWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "handleAudioEvent");
@@ -667,6 +659,26 @@ public class AudioService extends IAudioService.Stub {
         LocalServices.addService(AudioManagerInternal.class, new AudioServiceInternal());
     }
 
+    /**
+     * Return the platform type that this is running on. One of:
+     * <ul>
+     * <li>{@link #PLATFORM_VOICE}</li>
+     * <li>{@link #PLATFORM_TELEVISION}</li>
+     * <li>{@link #PLATFORM_DEFAULT}</li>
+     * </ul>
+     */
+    public static int getPlatformType(Context context) {
+        if (context.getResources().getBoolean(
+                com.android.internal.R.bool.config_voice_capable)) {
+            return PLATFORM_VOICE;
+        } else if (context.getPackageManager().hasSystemFeature(
+                                                            PackageManager.FEATURE_LEANBACK)) {
+            return PLATFORM_TELEVISION;
+        } else {
+            return PLATFORM_DEFAULT;
+        }
+    }
+
     public void systemReady() {
         sendMsg(mAudioHandler, MSG_SYSTEM_READY, SENDMSG_QUEUE,
                 0, 0, null, 0);
diff --git a/media/java/android/media/session/MediaSessionLegacyHelper.java b/media/java/android/media/session/MediaSessionLegacyHelper.java
index 9954de5..4ea22f9 100644
--- a/media/java/android/media/session/MediaSessionLegacyHelper.java
+++ b/media/java/android/media/session/MediaSessionLegacyHelper.java
@@ -221,7 +221,7 @@ public class MediaSessionLegacyHelper {
                 mSessionManager.dispatchAdjustVolume(AudioManager.USE_DEFAULT_STREAM_TYPE,
                         direction, flags);
             } else if (isMute) {
-                if (down) {
+                if (down && keyEvent.getRepeatCount() == 0) {
                     mSessionManager.dispatchAdjustVolume(AudioManager.USE_DEFAULT_STREAM_TYPE,
                             AudioManager.ADJUST_TOGGLE_MUTE, flags);
                 }
-- 
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