| /* |
| * 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.settings.development; |
| |
| import android.content.Context; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.storage.IStorageManager; |
| import android.text.TextUtils; |
| import android.sysprop.CryptoProperties; |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.development.DeveloperOptionsPreferenceController; |
| |
| public class FileEncryptionPreferenceController extends DeveloperOptionsPreferenceController |
| implements PreferenceControllerMixin { |
| |
| private static final String KEY_CONVERT_FBE = "convert_to_file_encryption"; |
| private static final String KEY_STORAGE_MANAGER = "mount"; |
| |
| private final IStorageManager mStorageManager; |
| |
| public FileEncryptionPreferenceController(Context context) { |
| super(context); |
| |
| mStorageManager = getStorageManager(); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| if (mStorageManager == null) { |
| return false; |
| } |
| |
| try { |
| return mStorageManager.isConvertibleToFBE(); |
| } catch (RemoteException e) { |
| return false; |
| } |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return KEY_CONVERT_FBE; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| if (CryptoProperties.type().orElse(CryptoProperties.type_values.NONE) != |
| CryptoProperties.type_values.FILE) { |
| return; |
| } |
| |
| mPreference.setEnabled(false); |
| mPreference.setSummary( |
| mContext.getResources().getString(R.string.convert_to_file_encryption_done)); |
| } |
| |
| private IStorageManager getStorageManager() { |
| try { |
| return IStorageManager.Stub.asInterface( |
| ServiceManager.getService(KEY_STORAGE_MANAGER)); |
| } catch (VerifyError e) { |
| // Used for tests since Robolectric cannot initialize this class. |
| return null; |
| } |
| } |
| } |