| /* |
| * Copyright (C) 2020 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.pm; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.app.role.RoleManager; |
| import android.os.Binder; |
| import android.os.UserHandle; |
| import android.util.Slog; |
| |
| import com.android.internal.infra.AndroidFuture; |
| import com.android.internal.util.CollectionUtils; |
| import com.android.server.FgThread; |
| |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.function.Consumer; |
| import java.util.function.Supplier; |
| |
| /** |
| * Interacts with {@link RoleManager} to provide and manage default apps. |
| */ |
| public class DefaultAppProvider { |
| @NonNull |
| private final Supplier<RoleManager> mRoleManagerSupplier; |
| @NonNull |
| private final Supplier<UserManagerInternal> mUserManagerInternalSupplier; |
| |
| /** |
| * Create a new instance of this class |
| * |
| * @param roleManagerSupplier the supplier for {@link RoleManager} |
| */ |
| public DefaultAppProvider(@NonNull Supplier<RoleManager> roleManagerSupplier, |
| @NonNull Supplier<UserManagerInternal> userManagerInternalSupplier) { |
| mRoleManagerSupplier = roleManagerSupplier; |
| mUserManagerInternalSupplier = userManagerInternalSupplier; |
| } |
| |
| /** |
| * Get the package name of the default browser. |
| * |
| * @param userId the user ID |
| * @return the package name of the default browser, or {@code null} if none |
| */ |
| @Nullable |
| public String getDefaultBrowser(@UserIdInt int userId) { |
| return getRoleHolder(RoleManager.ROLE_BROWSER, userId); |
| } |
| |
| /** |
| * Set the package name of the default browser. |
| * |
| * @param packageName package name of the default browser, or {@code null} to unset |
| * @param async whether the operation should be asynchronous |
| * @param userId the user ID |
| * @return whether the default browser was successfully set. |
| */ |
| public boolean setDefaultBrowser(@Nullable String packageName, boolean async, |
| @UserIdInt int userId) { |
| if (userId == UserHandle.USER_ALL) { |
| return false; |
| } |
| final RoleManager roleManager = mRoleManagerSupplier.get(); |
| if (roleManager == null) { |
| return false; |
| } |
| final UserHandle user = UserHandle.of(userId); |
| final Executor executor = FgThread.getExecutor(); |
| final AndroidFuture<Void> future = new AndroidFuture<>(); |
| final Consumer<Boolean> callback = successful -> { |
| if (successful) { |
| future.complete(null); |
| } else { |
| future.completeExceptionally(new RuntimeException()); |
| } |
| }; |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| if (packageName != null) { |
| roleManager.addRoleHolderAsUser(RoleManager.ROLE_BROWSER, packageName, 0, user, |
| executor, callback); |
| } else { |
| roleManager.clearRoleHoldersAsUser(RoleManager.ROLE_BROWSER, 0, user, executor, |
| callback); |
| } |
| if (!async) { |
| try { |
| future.get(5, TimeUnit.SECONDS); |
| } catch (InterruptedException | ExecutionException | TimeoutException e) { |
| Slog.e(PackageManagerService.TAG, "Exception while setting default browser: " |
| + packageName, e); |
| return false; |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| return true; |
| } |
| |
| /** |
| * Get the package name of the default dialer. |
| * |
| * @param userId the user ID |
| * @return the package name of the default dialer, or {@code null} if none |
| */ |
| @Nullable |
| public String getDefaultDialer(@NonNull int userId) { |
| return getRoleHolder(RoleManager.ROLE_DIALER, userId); |
| } |
| |
| /** |
| * Get the package name of the default home. |
| * |
| * @param userId the user ID |
| * @return the package name of the default home, or {@code null} if none |
| */ |
| @Nullable |
| public String getDefaultHome(@NonNull int userId) { |
| return getRoleHolder(RoleManager.ROLE_HOME, |
| mUserManagerInternalSupplier.get().getProfileParentId(userId)); |
| } |
| |
| /** |
| * Set the package name of the default home. |
| * |
| * @param packageName package name of the default home |
| * @param userId the user ID |
| * @param executor the {@link Executor} to execute callback on |
| * @param callback the callback made after the default home as been updated |
| * @return whether the default home was set |
| */ |
| public boolean setDefaultHome(@NonNull String packageName, @UserIdInt int userId, |
| @NonNull Executor executor, @NonNull Consumer<Boolean> callback) { |
| final RoleManager roleManager = mRoleManagerSupplier.get(); |
| if (roleManager == null) { |
| return false; |
| } |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| roleManager.addRoleHolderAsUser(RoleManager.ROLE_HOME, packageName, 0, |
| UserHandle.of(userId), executor, callback); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| return true; |
| } |
| |
| @Nullable |
| private String getRoleHolder(@NonNull String roleName, @NonNull int userId) { |
| final RoleManager roleManager = mRoleManagerSupplier.get(); |
| if (roleManager == null) { |
| return null; |
| } |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| return CollectionUtils.firstOrNull(roleManager.getRoleHoldersAsUser(roleName, |
| UserHandle.of(userId))); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } |
| } |