1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package android.support.v4.media.session; 17 18 import android.media.MediaMetadataEditor; 19 import android.media.MediaMetadataRetriever; 20 import android.media.Rating; 21 import android.media.RemoteControlClient; 22 import android.os.Bundle; 23 24 class MediaSessionCompatApi19 { 25 /***** PlaybackState actions *****/ 26 private static final long ACTION_SET_RATING = 1 << 7; 27 28 /***** MediaMetadata keys ********/ 29 private static final String METADATA_KEY_USER_RATING = "android.media.metadata.USER_RATING"; 30 private static final String METADATA_KEY_RATING = "android.media.metadata.RATING"; 31 private static final String METADATA_KEY_YEAR = "android.media.metadata.YEAR"; 32 setTransportControlFlags(Object rccObj, long actions)33 public static void setTransportControlFlags(Object rccObj, long actions) { 34 ((RemoteControlClient) rccObj).setTransportControlFlags( 35 getRccTransportControlFlagsFromActions(actions)); 36 } 37 createMetadataUpdateListener(Callback callback)38 public static Object createMetadataUpdateListener(Callback callback) { 39 return new OnMetadataUpdateListener<Callback>(callback); 40 } 41 setMetadata(Object rccObj, Bundle metadata, long actions)42 public static void setMetadata(Object rccObj, Bundle metadata, long actions) { 43 RemoteControlClient.MetadataEditor editor = ((RemoteControlClient) rccObj).editMetadata( 44 true); 45 MediaSessionCompatApi14.buildOldMetadata(metadata, editor); 46 addNewMetadata(metadata, editor); 47 if ((actions & ACTION_SET_RATING) != 0) { 48 editor.addEditableKey(RemoteControlClient.MetadataEditor.RATING_KEY_BY_USER); 49 } 50 editor.apply(); 51 } 52 setOnMetadataUpdateListener(Object rccObj, Object onMetadataUpdateObj)53 public static void setOnMetadataUpdateListener(Object rccObj, Object onMetadataUpdateObj) { 54 ((RemoteControlClient) rccObj).setMetadataUpdateListener( 55 (RemoteControlClient.OnMetadataUpdateListener) onMetadataUpdateObj); 56 } 57 getRccTransportControlFlagsFromActions(long actions)58 static int getRccTransportControlFlagsFromActions(long actions) { 59 int transportControlFlags = 60 MediaSessionCompatApi18.getRccTransportControlFlagsFromActions(actions); 61 if ((actions & ACTION_SET_RATING) != 0) { 62 transportControlFlags |= RemoteControlClient.FLAG_KEY_MEDIA_RATING; 63 } 64 return transportControlFlags; 65 } 66 addNewMetadata(Bundle metadata, RemoteControlClient.MetadataEditor editor)67 static void addNewMetadata(Bundle metadata, RemoteControlClient.MetadataEditor editor) { 68 if (metadata == null) { 69 return; 70 } 71 if (metadata.containsKey(METADATA_KEY_YEAR)) { 72 editor.putLong(MediaMetadataRetriever.METADATA_KEY_YEAR, 73 metadata.getLong(METADATA_KEY_YEAR)); 74 } 75 if (metadata.containsKey(METADATA_KEY_RATING)) { 76 editor.putObject(MediaMetadataEditor.RATING_KEY_BY_OTHERS, 77 metadata.getParcelable(METADATA_KEY_RATING)); 78 } 79 if (metadata.containsKey(METADATA_KEY_USER_RATING)) { 80 editor.putObject(MediaMetadataEditor.RATING_KEY_BY_USER, 81 metadata.getParcelable(METADATA_KEY_USER_RATING)); 82 } 83 } 84 85 static class OnMetadataUpdateListener<T extends Callback> implements 86 RemoteControlClient.OnMetadataUpdateListener { 87 protected final T mCallback; 88 OnMetadataUpdateListener(T callback)89 public OnMetadataUpdateListener(T callback) { 90 mCallback = callback; 91 } 92 93 @Override onMetadataUpdate(int key, Object newValue)94 public void onMetadataUpdate(int key, Object newValue) { 95 if (key == MediaMetadataEditor.RATING_KEY_BY_USER && newValue instanceof Rating) { 96 mCallback.onSetRating(newValue); 97 } 98 } 99 } 100 101 interface Callback extends MediaSessionCompatApi18.Callback { onSetRating(Object ratingObj)102 public void onSetRating(Object ratingObj); 103 } 104 } 105