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 */
16package android.support.v4.media.session;
17
18import android.graphics.Bitmap;
19import android.media.MediaMetadataEditor;
20import android.media.Rating;
21import android.media.RemoteControlClient;
22import android.os.Bundle;
23
24public class MediaSessionCompatApi19 {
25    /***** MediaMetadata keys ********/
26    private static final String METADATA_KEY_ART = "android.media.metadata.ART";
27    private static final String METADATA_KEY_ALBUM_ART = "android.media.metadata.ALBUM_ART";
28    private static final String METADATA_KEY_USER_RATING = "android.media.metadata.USER_RATING";
29    private static final String METADATA_KEY_RATING = "android.media.metadata.RATING";
30
31    public static Object createMetadataUpdateListener(MediaSessionCompatApi14.Callback callback) {
32        return new OnMetadataUpdateListener<MediaSessionCompatApi14.Callback>(callback);
33    }
34
35    public static void setMetadata(Object rccObj, Bundle metadata, boolean supportRating) {
36        RemoteControlClient.MetadataEditor editor = ((RemoteControlClient) rccObj).editMetadata(
37                true);
38        MediaSessionCompatApi14.buildOldMetadata(metadata, editor);
39        addNewMetadata(metadata, editor);
40        if (supportRating && android.os.Build.VERSION.SDK_INT > 19) {
41            editor.addEditableKey(RemoteControlClient.MetadataEditor.RATING_KEY_BY_USER);
42        }
43        editor.apply();
44    }
45
46    public static void setOnMetadataUpdateListener(Object rccObj, Object onMetadataUpdateObj) {
47        ((RemoteControlClient) rccObj).setMetadataUpdateListener(
48                (RemoteControlClient.OnMetadataUpdateListener) onMetadataUpdateObj);
49    }
50
51    static void addNewMetadata(Bundle metadata, RemoteControlClient.MetadataEditor editor) {
52        if (metadata.containsKey(METADATA_KEY_RATING)) {
53            editor.putObject(MediaMetadataEditor.RATING_KEY_BY_OTHERS,
54                    metadata.getParcelable(METADATA_KEY_RATING));
55        }
56        if (metadata.containsKey(METADATA_KEY_USER_RATING)) {
57            editor.putObject(MediaMetadataEditor.RATING_KEY_BY_USER,
58                    metadata.getParcelable(METADATA_KEY_USER_RATING));
59        }
60        if (metadata.containsKey(METADATA_KEY_ART)) {
61            Bitmap art = metadata.getParcelable(METADATA_KEY_ART);
62            editor.putBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, art);
63        } else if (metadata.containsKey(METADATA_KEY_ALBUM_ART)) {
64            // Fall back to album art if the track art wasn't available
65            Bitmap art = metadata.getParcelable(METADATA_KEY_ALBUM_ART);
66            editor.putBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, art);
67        }
68    }
69
70    static class OnMetadataUpdateListener<T extends MediaSessionCompatApi14.Callback> implements
71            RemoteControlClient.OnMetadataUpdateListener {
72        protected final T mCallback;
73
74        public OnMetadataUpdateListener(T callback) {
75            mCallback = callback;
76        }
77
78        @Override
79        public void onMetadataUpdate(int key, Object newValue) {
80            if (key == MediaMetadataEditor.RATING_KEY_BY_USER && newValue instanceof Rating) {
81                mCallback.onSetRating(newValue);
82            }
83        }
84    }
85}