| /* |
| * Copyright (C) 2017 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.server.wm; |
| |
| import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM; |
| import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| |
| import android.app.IAssistDataReceiver; |
| import android.graphics.Bitmap; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import com.android.server.am.AssistDataRequester.AssistDataRequesterCallbacks; |
| |
| /** |
| * Proxies assist data to the given receiver, skipping all callbacks if the receiver dies. |
| */ |
| class AssistDataReceiverProxy implements AssistDataRequesterCallbacks, |
| Binder.DeathRecipient { |
| |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "AssistDataReceiverProxy" : TAG_ATM; |
| |
| private String mCallerPackage; |
| private IAssistDataReceiver mReceiver; |
| |
| public AssistDataReceiverProxy(IAssistDataReceiver receiver, String callerPackage) { |
| mReceiver = receiver; |
| mCallerPackage = callerPackage; |
| linkToDeath(); |
| } |
| |
| @Override |
| public boolean canHandleReceivedAssistDataLocked() { |
| // We are forwarding, so we can always receive this data |
| return true; |
| } |
| |
| @Override |
| public void onAssistDataReceivedLocked(Bundle data, int activityIndex, int activityCount) { |
| if (mReceiver != null) { |
| try { |
| mReceiver.onHandleAssistData(data); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to proxy assist data to receiver in package=" |
| + mCallerPackage, e); |
| } |
| } |
| } |
| |
| @Override |
| public void onAssistScreenshotReceivedLocked(Bitmap screenshot) { |
| if (mReceiver != null) { |
| try { |
| mReceiver.onHandleAssistScreenshot(screenshot); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to proxy assist screenshot to receiver in package=" |
| + mCallerPackage, e); |
| } |
| } |
| } |
| |
| @Override |
| public void onAssistRequestCompleted() { |
| unlinkToDeath(); |
| } |
| |
| @Override |
| public void binderDied() { |
| unlinkToDeath(); |
| } |
| |
| private void linkToDeath() { |
| try { |
| mReceiver.asBinder().linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Could not link to client death", e); |
| } |
| } |
| |
| private void unlinkToDeath() { |
| if (mReceiver != null) { |
| mReceiver.asBinder().unlinkToDeath(this, 0); |
| } |
| mReceiver = null; |
| } |
| } |