1 /* 2 * Copyright (C) 2019 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 17 package com.android.settings.wfd; 18 19 import android.content.Context; 20 import android.media.MediaRouter; 21 import android.media.MediaRouter.RouteInfo; 22 import android.text.TextUtils; 23 24 import androidx.preference.Preference; 25 import androidx.preference.PreferenceScreen; 26 27 import com.android.settings.R; 28 import com.android.settings.core.BasePreferenceController; 29 import com.android.settingslib.core.lifecycle.LifecycleObserver; 30 import com.android.settingslib.core.lifecycle.events.OnStart; 31 import com.android.settingslib.core.lifecycle.events.OnStop; 32 33 public class WifiDisplayPreferenceController extends BasePreferenceController implements 34 LifecycleObserver, OnStart, OnStop { 35 36 private final MediaRouter mRouter; 37 private Preference mPreference; 38 private final MediaRouter.Callback mRouterCallback = new MediaRouter.SimpleCallback() { 39 @Override 40 public void onRouteSelected(MediaRouter router, int type, RouteInfo info) { 41 refreshSummary(mPreference); 42 } 43 44 @Override 45 public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) { 46 refreshSummary(mPreference); 47 } 48 49 @Override 50 public void onRouteAdded(MediaRouter router, RouteInfo info) { 51 refreshSummary(mPreference); 52 } 53 54 @Override 55 public void onRouteRemoved(MediaRouter router, RouteInfo info) { 56 refreshSummary(mPreference); 57 } 58 59 @Override 60 public void onRouteChanged(MediaRouter router, RouteInfo info) { 61 refreshSummary(mPreference); 62 } 63 }; 64 WifiDisplayPreferenceController(Context context, String key)65 public WifiDisplayPreferenceController(Context context, String key) { 66 super(context, key); 67 mRouter = context.getSystemService(MediaRouter.class); 68 } 69 70 @Override getAvailabilityStatus()71 public int getAvailabilityStatus() { 72 return WifiDisplaySettings.isAvailable(mContext) ? AVAILABLE : UNSUPPORTED_ON_DEVICE; 73 } 74 75 @Override displayPreference(PreferenceScreen screen)76 public void displayPreference(PreferenceScreen screen) { 77 super.displayPreference(screen); 78 mPreference = screen.findPreference(getPreferenceKey()); 79 } 80 81 @Override getSummary()82 public CharSequence getSummary() { 83 CharSequence summary = mContext.getString(R.string.disconnected); 84 85 final int routeCount = mRouter.getRouteCount(); 86 for (int i = 0; i < routeCount; i++) { 87 final MediaRouter.RouteInfo route = mRouter.getRouteAt(i); 88 if (route.matchesTypes(MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY) 89 && route.isSelected() && !route.isConnecting()) { 90 CharSequence status = route.getStatus(); 91 if (!TextUtils.isEmpty(status)) { 92 summary = status; 93 } else { 94 summary = mContext.getString(R.string.wifi_display_status_connected); 95 } 96 break; 97 } 98 } 99 return summary; 100 } 101 102 @Override onStart()103 public void onStart() { 104 mRouter.addCallback(MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY, mRouterCallback); 105 } 106 107 @Override onStop()108 public void onStop() { 109 mRouter.removeCallback(mRouterCallback); 110 } 111 } 112