Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.server.am; |
| 18 | |
| 19 | import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; |
| 20 | import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| 21 | |
Winson Chung | e210468 | 2017-11-08 17:31:14 -0800 | [diff] [blame] | 22 | import android.app.IAssistDataReceiver; |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 23 | import android.graphics.Bitmap; |
| 24 | import android.os.Binder; |
| 25 | import android.os.Bundle; |
| 26 | import android.os.RemoteException; |
| 27 | import android.util.Log; |
| 28 | |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 29 | import com.android.server.am.AssistDataRequester.AssistDataRequesterCallbacks; |
| 30 | |
| 31 | /** |
| 32 | * Proxies assist data to the given receiver, skipping all callbacks if the receiver dies. |
| 33 | */ |
| 34 | class AssistDataReceiverProxy implements AssistDataRequesterCallbacks, |
| 35 | Binder.DeathRecipient { |
| 36 | |
| 37 | private static final String TAG = TAG_WITH_CLASS_NAME ? "AssistDataReceiverProxy" : TAG_AM; |
| 38 | |
| 39 | private String mCallerPackage; |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 40 | private IAssistDataReceiver mReceiver; |
| 41 | |
| 42 | public AssistDataReceiverProxy(IAssistDataReceiver receiver, String callerPackage) { |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 43 | mReceiver = receiver; |
| 44 | mCallerPackage = callerPackage; |
Winson Chung | 397967f | 2017-11-01 16:21:35 -0700 | [diff] [blame] | 45 | linkToDeath(); |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 46 | } |
| 47 | |
| 48 | @Override |
| 49 | public boolean canHandleReceivedAssistDataLocked() { |
| 50 | // We are forwarding, so we can always receive this data |
| 51 | return true; |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public void onAssistDataReceivedLocked(Bundle data, int activityIndex, int activityCount) { |
Winson Chung | 397967f | 2017-11-01 16:21:35 -0700 | [diff] [blame] | 56 | if (mReceiver != null) { |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 57 | try { |
| 58 | mReceiver.onHandleAssistData(data); |
| 59 | } catch (RemoteException e) { |
| 60 | Log.w(TAG, "Failed to proxy assist data to receiver in package=" |
| 61 | + mCallerPackage, e); |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public void onAssistScreenshotReceivedLocked(Bitmap screenshot) { |
Winson Chung | 397967f | 2017-11-01 16:21:35 -0700 | [diff] [blame] | 68 | if (mReceiver != null) { |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 69 | try { |
| 70 | mReceiver.onHandleAssistScreenshot(screenshot); |
| 71 | } catch (RemoteException e) { |
| 72 | Log.w(TAG, "Failed to proxy assist screenshot to receiver in package=" |
| 73 | + mCallerPackage, e); |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | @Override |
Winson Chung | 397967f | 2017-11-01 16:21:35 -0700 | [diff] [blame] | 79 | public void onAssistRequestCompleted() { |
| 80 | unlinkToDeath(); |
| 81 | } |
| 82 | |
| 83 | @Override |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 84 | public void binderDied() { |
Winson Chung | 397967f | 2017-11-01 16:21:35 -0700 | [diff] [blame] | 85 | unlinkToDeath(); |
| 86 | } |
| 87 | |
| 88 | private void linkToDeath() { |
| 89 | try { |
| 90 | mReceiver.asBinder().linkToDeath(this, 0); |
| 91 | } catch (RemoteException e) { |
| 92 | Log.w(TAG, "Could not link to client death", e); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | private void unlinkToDeath() { |
| 97 | if (mReceiver != null) { |
| 98 | mReceiver.asBinder().unlinkToDeath(this, 0); |
| 99 | } |
| 100 | mReceiver = null; |
Winson Chung | ec1ef09 | 2017-10-25 16:22:34 -0700 | [diff] [blame] | 101 | } |
| 102 | } |