| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the |
| * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| */ |
| |
| package com.android.settingslib; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentProvider; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.net.Uri; |
| import android.os.Process; |
| import android.os.UserHandle; |
| import android.util.ArraySet; |
| import android.util.Log; |
| |
| import java.util.Set; |
| |
| /** |
| * Utility class that allows Settings to use SystemUI to relay broadcasts related to pinned slices. |
| */ |
| public class SliceBroadcastRelay { |
| |
| public static final String ACTION_REGISTER |
| = "com.android.settingslib.action.REGISTER_SLICE_RECEIVER"; |
| public static final String ACTION_UNREGISTER |
| = "com.android.settingslib.action.UNREGISTER_SLICE_RECEIVER"; |
| public static final String SYSTEMUI_PACKAGE = "com.android.systemui"; |
| |
| public static final String EXTRA_URI = "uri"; |
| public static final String EXTRA_RECEIVER = "receiver"; |
| public static final String EXTRA_FILTER = "filter"; |
| private static final String TAG = "SliceBroadcastRelay"; |
| |
| private static final Set<Uri> sRegisteredUris = new ArraySet<>(); |
| |
| /** |
| * Associate intent filter/sliceUri with corresponding receiver. |
| */ |
| public static void registerReceiver(Context context, Uri sliceUri, |
| Class<? extends BroadcastReceiver> receiver, IntentFilter filter) { |
| |
| Log.d(TAG, "Registering Uri for broadcast relay: " + sliceUri); |
| sRegisteredUris.add(sliceUri); |
| |
| Intent registerBroadcast = new Intent(ACTION_REGISTER); |
| registerBroadcast.setPackage(SYSTEMUI_PACKAGE); |
| registerBroadcast.putExtra(EXTRA_URI, ContentProvider.maybeAddUserId(sliceUri, |
| Process.myUserHandle().getIdentifier())); |
| registerBroadcast.putExtra(EXTRA_RECEIVER, |
| new ComponentName(context.getPackageName(), receiver.getName())); |
| registerBroadcast.putExtra(EXTRA_FILTER, filter); |
| |
| context.sendBroadcastAsUser(registerBroadcast, UserHandle.SYSTEM); |
| } |
| |
| /** |
| * Unregisters all receivers for a given slice uri. |
| */ |
| |
| public static void unregisterReceivers(Context context, Uri sliceUri) { |
| if (!sRegisteredUris.contains(sliceUri)) { |
| return; |
| } |
| Log.d(TAG, "Unregistering uri broadcast relay: " + sliceUri); |
| final Intent registerBroadcast = new Intent(ACTION_UNREGISTER); |
| registerBroadcast.setPackage(SYSTEMUI_PACKAGE); |
| registerBroadcast.putExtra(EXTRA_URI, ContentProvider.maybeAddUserId(sliceUri, |
| Process.myUserHandle().getIdentifier())); |
| |
| context.sendBroadcastAsUser(registerBroadcast, UserHandle.SYSTEM); |
| sRegisteredUris.remove(sliceUri); |
| } |
| } |