Refactor Clank cast code to use MediaNotificationManager

chrome/android/java/src/org/chromium/chrome/browser/media/remote/LockScreenTransportControlV16.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/remote/LockScreenTransportControlV16.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/remote/LockScreenTransportControlV16.java b/chrome/android/java/src/org/chromium/chrome/browser/media/remote/LockScreenTransportControlV16.java
deleted file mode 100644
index ecbbb23832320f18fc2a511ee9f4c38c7fcd43d0..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/media/remote/LockScreenTransportControlV16.java
+++ /dev/null
@@ -1,236 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser.media.remote;
-
-import android.annotation.TargetApi;
-import android.app.PendingIntent;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.media.AudioManager;
-import android.media.AudioManager.OnAudioFocusChangeListener;
-import android.media.MediaMetadataRetriever;
-import android.os.Build;
-import android.support.v7.media.MediaRouter;
-import android.util.Log;
-
-import org.chromium.base.CommandLine;
-import org.chromium.chrome.browser.ChromeSwitches;
-import org.chromium.chrome.browser.media.remote.RemoteVideoInfo.PlayerState;
-
-/**
- * An implementation of {@link LockScreenTransportControl} targeting platforms with an API greater
- * than 15 (Jelly Bean, the minimum API version supported by Chrome).
- */
-@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
-//TODO(aberent) This whole class is based upon RemoteControlClient, which is deprecated in
-//the Android L SDK. It, however, still seems to be the only way of controlling the
-//lock screen wallpaper. We need to investigate whether there is an alternative. See
-//LockScreenTransportControl.java.
-@SuppressWarnings("deprecation")
-class LockScreenTransportControlV16 extends LockScreenTransportControl {
-
-    private final MediaRouter mMediaRouter;
-    private final AudioManager mAudioManager;
-    private final PendingIntent mMediaPendingIntent;
-    private final ComponentName mMediaEventReceiver;
-    private final AudioFocusListener mAudioFocusListener;
-    private android.media.RemoteControlClient mRemoteControlClient;
-    private boolean mIsPlaying;
-
-    private boolean mDebug;
-    private static final String TAG = "LockScreenTransportControlV14";
-
-    static class AudioFocusListener implements OnAudioFocusChangeListener {
-        @Override
-        public void onAudioFocusChange(int focusChange) {
-            // Do nothing, the listener is only used to later abandon audio focus.
-        }
-    }
-
-    LockScreenTransportControlV16(Context context) {
-        mDebug = CommandLine.getInstance().hasSwitch(ChromeSwitches.ENABLE_CAST_DEBUG_LOGS);
-
-        mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
-        mMediaEventReceiver = new ComponentName(context.getPackageName(),
-                MediaButtonIntentReceiver.class.getName());
-        Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
-        mediaButtonIntent.setComponent(mMediaEventReceiver);
-        mMediaPendingIntent = PendingIntent.getBroadcast(context.getApplicationContext(), 0,
-                mediaButtonIntent, 0);
-        mAudioFocusListener = new AudioFocusListener();
-        mMediaRouter = MediaRouter.getInstance(context);
-    }
-
-    @Override
-    public void onErrorChanged() {
-        if (hasError()) updatePlaybackState(android.media.RemoteControlClient.PLAYSTATE_ERROR);
-    }
-
-    @Override
-    public void onLockScreenPlaybackStateChanged(PlayerState oldState, PlayerState newState) {
-        if (mDebug) Log.d(TAG, "onLockScreenPlaybackStateChanged - new state: " + newState);
-        int playbackState = android.media.RemoteControlClient.PLAYSTATE_STOPPED;
-        boolean shouldBeRegistered = false;
-        if (newState != null) {
-            mIsPlaying = false;
-            shouldBeRegistered = true;
-            switch (newState) {
-                case PAUSED:
-                    playbackState = android.media.RemoteControlClient.PLAYSTATE_PAUSED;
-                    break;
-                case ERROR:
-                    playbackState = android.media.RemoteControlClient.PLAYSTATE_ERROR;
-                    break;
-                case PLAYING:
-                    playbackState = android.media.RemoteControlClient.PLAYSTATE_PLAYING;
-                    mIsPlaying = true;
-                    break;
-                case LOADING:
-                    playbackState = android.media.RemoteControlClient.PLAYSTATE_BUFFERING;
-                    break;
-                default:
-                    shouldBeRegistered = false;
-                    break;
-            }
-        }
-
-        boolean registered = (mRemoteControlClient != null);
-        if (registered != shouldBeRegistered) {
-            if (shouldBeRegistered) {
-                register();
-                onVideoInfoChanged();
-                onPosterBitmapChanged();
-            } else {
-                unregister();
-            }
-        }
-
-        updatePlaybackState(playbackState);
-    }
-
-    @Override
-    public void onVideoInfoChanged() {
-        if (mRemoteControlClient == null) return;
-
-        RemoteVideoInfo videoInfo = getVideoInfo();
-
-        String title = null;
-        long duration = 0;
-        if (videoInfo != null) {
-            title = videoInfo.title;
-            duration = videoInfo.durationMillis;
-        }
-
-        android.media.RemoteControlClient.MetadataEditor editor = mRemoteControlClient.editMetadata(
-                true);
-        editor.putString(MediaMetadataRetriever.METADATA_KEY_TITLE, title);
-        editor.putLong(MediaMetadataRetriever.METADATA_KEY_DURATION, duration);
-        updateBitmap(editor);
-        editor.apply();
-    }
-
-    @Override
-    public void onPosterBitmapChanged() {
-        if (mRemoteControlClient == null) return;
-
-        android.media.RemoteControlClient.MetadataEditor editor = mRemoteControlClient.editMetadata(
-                false);
-        updateBitmap(editor);
-        editor.apply();
-    }
-
-    private void updateBitmap(android.media.RemoteControlClient.MetadataEditor editor) {
-        // RemoteControlClient likes to recycle bitmaps that have been passed to it through
-        // BITMAP_KEY_ARTWORK. We can't go recycling bitmaps like this since they are also used by
-        // {@link ExpandedControllerActivity} and their life cycle is controller by
-        // {@link RemoteMediaPlayerController}. See crbug.com/356612
-        Bitmap src = getPosterBitmap();
-        Bitmap copy = src != null ? src.copy(src.getConfig(), true) : null;
-        editor.putBitmap(android.media.RemoteControlClient.MetadataEditor.BITMAP_KEY_ARTWORK, copy);
-    }
-
-    protected final android.media.RemoteControlClient getRemoteControlClient() {
-        return mRemoteControlClient;
-    }
-
-    protected void register() {
-        if (mDebug) Log.d(TAG, "register called");
-        mRemoteControlClient = new android.media.RemoteControlClient(mMediaPendingIntent);
-        mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.USE_DEFAULT_STREAM_TYPE,
-                AudioManager.AUDIOFOCUS_GAIN);
-        mAudioManager.registerMediaButtonEventReceiver(mMediaEventReceiver);
-        mAudioManager.registerRemoteControlClient(mRemoteControlClient);
-        mRemoteControlClient.setTransportControlFlags(getTransportControlFlags());
-        mMediaRouter.addRemoteControlClient(getRemoteControlClient());
-    }
-
-    protected void unregister() {
-        if (mDebug) Log.d(TAG, "unregister called");
-        mMediaRouter.removeRemoteControlClient(getRemoteControlClient());
-        mRemoteControlClient.editMetadata(true).apply();
-        mRemoteControlClient.setTransportControlFlags(0);
-        mAudioManager.abandonAudioFocus(mAudioFocusListener);
-        mAudioManager.unregisterMediaButtonEventReceiver(mMediaEventReceiver);
-        mAudioManager.unregisterRemoteControlClient(mRemoteControlClient);
-        mRemoteControlClient = null;
-    }
-
-    protected void updatePlaybackState(int state) {
-        if (mRemoteControlClient != null) mRemoteControlClient.setPlaybackState(state);
-    }
-
-    protected int getTransportControlFlags() {
-        return android.media.RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE
-                | android.media.RemoteControlClient.FLAG_KEY_MEDIA_STOP;
-    }
-
-    @Override
-    public void onRouteSelected(String name, MediaRouteController mediaRouteController) {
-        setScreenName(name);
-    }
-
-    @Override
-    public void onRouteUnselected(MediaRouteController mediaRouteController) {
-        hide();
-    }
-
-    @Override
-    public void onPrepared(MediaRouteController mediaRouteController) {
-    }
-
-    @Override
-    public void onError(int error, String errorMessage) {
-        // Stop the session for all errors
-        hide();
-    }
-
-    @Override
-    public void onDurationUpdated(long durationMillis) {
-        RemoteVideoInfo videoInfo = new RemoteVideoInfo(getVideoInfo());
-        videoInfo.durationMillis = durationMillis;
-        setVideoInfo(videoInfo);
-    }
-
-    @Override
-    public void onPositionChanged(long positionMillis) {
-        RemoteVideoInfo videoInfo = new RemoteVideoInfo(getVideoInfo());
-        videoInfo.currentTimeMillis = positionMillis;
-        setVideoInfo(videoInfo);
-    }
-
-    @Override
-    public void onTitleChanged(String title) {
-        RemoteVideoInfo videoInfo = new RemoteVideoInfo(getVideoInfo());
-        videoInfo.title = title;
-        setVideoInfo(videoInfo);
-    }
-
-    @Override
-    protected boolean isPlaying() {
-        return mIsPlaying;
-    }
-}