1 /* 2 * Copyright 2018 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 com.android.settingslib.media; 17 18 import android.app.Notification; 19 import android.content.Context; 20 import android.util.Log; 21 22 import androidx.mediarouter.media.MediaRouteSelector; 23 import androidx.mediarouter.media.MediaRouter; 24 25 import com.android.internal.annotations.VisibleForTesting; 26 27 /** 28 * InfoMediaManager provide interface to get InfoMediaDevice list. 29 */ 30 public class InfoMediaManager extends MediaManager { 31 32 private static final String TAG = "InfoMediaManager"; 33 34 @VisibleForTesting 35 final MediaRouterCallback mMediaRouterCallback = new MediaRouterCallback(); 36 @VisibleForTesting 37 MediaRouteSelector mSelector; 38 @VisibleForTesting 39 MediaRouter mMediaRouter; 40 41 private String mPackageName; 42 43 InfoMediaManager(Context context, String packageName, Notification notification) { 44 super(context, notification); 45 46 mMediaRouter = MediaRouter.getInstance(context); 47 mPackageName = packageName; 48 mSelector = new MediaRouteSelector.Builder() 49 .addControlCategory(getControlCategoryByPackageName(mPackageName)) 50 .build(); 51 } 52 53 @Override 54 public void startScan() { 55 mMediaDevices.clear(); 56 mMediaRouter.addCallback(mSelector, mMediaRouterCallback, 57 MediaRouter.CALLBACK_FLAG_REQUEST_DISCOVERY); 58 } 59 60 @VisibleForTesting 61 String getControlCategoryByPackageName(String packageName) { 62 //TODO(b/117129183): Use package name to get ControlCategory. 63 //Since api not ready, return fixed ControlCategory for prototype. 64 return "com.google.android.gms.cast.CATEGORY_CAST/4F8B3483"; 65 } 66 67 @Override 68 public void stopScan() { 69 mMediaRouter.removeCallback(mMediaRouterCallback); 70 } 71 72 class MediaRouterCallback extends MediaRouter.Callback { 73 @Override 74 public void onRouteAdded(MediaRouter router, MediaRouter.RouteInfo route) { 75 MediaDevice mediaDevice = findMediaDevice(MediaDeviceUtils.getId(route)); 76 if (mediaDevice == null) { 77 mediaDevice = new InfoMediaDevice(mContext, route); 78 Log.d(TAG, "onRouteAdded() route : " + route.getName()); 79 mMediaDevices.add(mediaDevice); 80 dispatchDeviceAdded(mediaDevice); 81 } 82 } 83 84 @Override 85 public void onRouteRemoved(MediaRouter router, MediaRouter.RouteInfo route) { 86 final MediaDevice mediaDevice = findMediaDevice(MediaDeviceUtils.getId(route)); 87 if (mediaDevice != null) { 88 Log.d(TAG, "onRouteRemoved() route : " + route.getName()); 89 mMediaDevices.remove(mediaDevice); 90 dispatchDeviceRemoved(mediaDevice); 91 } 92 } 93 } 94 } 95
