1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.settingslib; 16 17 import android.content.BroadcastReceiver; 18 import android.content.ComponentName; 19 import android.content.ContentProvider; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.IntentFilter; 23 import android.net.Uri; 24 import android.os.Process; 25 import android.os.UserHandle; 26 import android.util.ArraySet; 27 import android.util.Log; 28 29 import java.util.Set; 30 31 /** 32 * Utility class that allows Settings to use SystemUI to relay broadcasts related to pinned slices. 33 */ 34 public class SliceBroadcastRelay { 35 36 public static final String ACTION_REGISTER 37 = "com.android.settingslib.action.REGISTER_SLICE_RECEIVER"; 38 public static final String ACTION_UNREGISTER 39 = "com.android.settingslib.action.UNREGISTER_SLICE_RECEIVER"; 40 public static final String SYSTEMUI_PACKAGE = "com.android.systemui"; 41 42 public static final String EXTRA_URI = "uri"; 43 public static final String EXTRA_RECEIVER = "receiver"; 44 public static final String EXTRA_FILTER = "filter"; 45 private static final String TAG = "SliceBroadcastRelay"; 46 47 private static final Set<Uri> sRegisteredUris = new ArraySet<>(); 48 49 /** 50 * Associate intent filter/sliceUri with corresponding receiver. 51 */ 52 public static void registerReceiver(Context context, Uri sliceUri, 53 Class<? extends BroadcastReceiver> receiver, IntentFilter filter) { 54 55 Log.d(TAG, "Registering Uri for broadcast relay: " + sliceUri); 56 sRegisteredUris.add(sliceUri); 57 58 Intent registerBroadcast = new Intent(ACTION_REGISTER); 59 registerBroadcast.setPackage(SYSTEMUI_PACKAGE); 60 registerBroadcast.putExtra(EXTRA_URI, ContentProvider.maybeAddUserId(sliceUri, 61 Process.myUserHandle().getIdentifier())); 62 registerBroadcast.putExtra(EXTRA_RECEIVER, 63 new ComponentName(context.getPackageName(), receiver.getName())); 64 registerBroadcast.putExtra(EXTRA_FILTER, filter); 65 66 context.sendBroadcastAsUser(registerBroadcast, UserHandle.SYSTEM); 67 } 68 69 /** 70 * Unregisters all receivers for a given slice uri. 71 */ 72 73 public static void unregisterReceivers(Context context, Uri sliceUri) { 74 if (!sRegisteredUris.contains(sliceUri)) { 75 return; 76 } 77 Log.d(TAG, "Unregistering uri broadcast relay: " + sliceUri); 78 final Intent registerBroadcast = new Intent(ACTION_UNREGISTER); 79 registerBroadcast.setPackage(SYSTEMUI_PACKAGE); 80 registerBroadcast.putExtra(EXTRA_URI, ContentProvider.maybeAddUserId(sliceUri, 81 Process.myUserHandle().getIdentifier())); 82 83 context.sendBroadcastAsUser(registerBroadcast, UserHandle.SYSTEM); 84 sRegisteredUris.remove(sliceUri); 85 } 86 } 87
