| /* |
| * Copyright (C) 2021 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.car.am; |
| |
| import android.app.ActivityManager; |
| import android.car.Car; |
| import android.car.app.CarActivityManager; |
| import android.car.app.ICarActivityService; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.os.Binder; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.IndentingPrintWriter; |
| |
| import com.android.car.CarServiceBase; |
| import com.android.car.internal.ICarServiceHelper; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| /** |
| * Service responsible for Activities in Car. |
| */ |
| public final class CarActivityService extends ICarActivityService.Stub |
| implements CarServiceBase { |
| |
| private final Context mContext; |
| |
| private final Object mLock = new Object(); |
| |
| @GuardedBy("mLock") |
| ICarServiceHelper mICarServiceHelper; |
| |
| public CarActivityService(Context context) { |
| mContext = context; |
| } |
| |
| @Override |
| public void init() {} |
| |
| @Override |
| public void release() {} |
| |
| /** |
| * Sets {@code ICarServiceHelper}. |
| */ |
| public void setICarServiceHelper(ICarServiceHelper helper) { |
| synchronized (mLock) { |
| mICarServiceHelper = helper; |
| } |
| } |
| |
| @Override |
| public int setPersistentActivity(ComponentName activity, int displayId, int featureId) throws |
| RemoteException { |
| if (PackageManager.PERMISSION_GRANTED != mContext.checkCallingOrSelfPermission( |
| Car.PERMISSION_CONTROL_CAR_APP_LAUNCH)) { |
| throw new SecurityException("Requires " + Car.PERMISSION_CONTROL_CAR_APP_LAUNCH); |
| } |
| int caller = getCaller(); |
| if (caller != UserHandle.USER_SYSTEM && caller != ActivityManager.getCurrentUser()) { |
| return CarActivityManager.RESULT_INVALID_USER; |
| } |
| |
| ICarServiceHelper helper; |
| synchronized (mLock) { |
| helper = mICarServiceHelper; |
| } |
| if (helper == null) { |
| throw new IllegalStateException("ICarServiceHelper isn't connected yet"); |
| } |
| return helper.setPersistentActivity(activity, displayId, featureId); |
| } |
| |
| @VisibleForTesting |
| int getCaller() { // Non static for mocking. |
| return UserHandle.getUserId(Binder.getCallingUid()); |
| } |
| |
| @Override |
| public void dump(IndentingPrintWriter writer) {} |
| } |