| /* |
| * 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.launcher3.hybridhotseat; |
| |
| import static com.android.launcher3.LauncherSettings.Favorites.HYBRID_HOTSEAT_BACKUP_TABLE; |
| import static com.android.launcher3.provider.LauncherDbUtils.tableExists; |
| import static com.android.launcher3.util.Executors.MODEL_EXECUTOR; |
| |
| import com.android.launcher3.InvariantDeviceProfile; |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.LauncherSettings; |
| import com.android.launcher3.model.GridBackupTable; |
| import com.android.launcher3.provider.LauncherDbUtils; |
| |
| /** |
| * A helper class to manage migration revert restoration for hybrid hotseat |
| */ |
| public class HotseatRestoreHelper { |
| private final Launcher mLauncher; |
| private boolean mBackupRestored = false; |
| |
| HotseatRestoreHelper(Launcher context) { |
| mLauncher = context; |
| } |
| |
| /** |
| * Creates a snapshot backup of Favorite table for future restoration use. |
| */ |
| public void createBackup() { |
| MODEL_EXECUTOR.execute(() -> { |
| try (LauncherDbUtils.SQLiteTransaction transaction = (LauncherDbUtils.SQLiteTransaction) |
| LauncherSettings.Settings.call( |
| mLauncher.getContentResolver(), |
| LauncherSettings.Settings.METHOD_NEW_TRANSACTION) |
| .getBinder(LauncherSettings.Settings.EXTRA_VALUE)) { |
| InvariantDeviceProfile idp = mLauncher.getDeviceProfile().inv; |
| GridBackupTable backupTable = new GridBackupTable(mLauncher, |
| transaction.getDb(), idp.numHotseatIcons, idp.numColumns, |
| idp.numRows); |
| backupTable.createCustomBackupTable(HYBRID_HOTSEAT_BACKUP_TABLE); |
| transaction.commit(); |
| LauncherSettings.Settings.call(mLauncher.getContentResolver(), |
| LauncherSettings.Settings.METHOD_REFRESH_HOTSEAT_RESTORE_TABLE); |
| } |
| }); |
| } |
| |
| /** |
| * Finds and restores a previously saved snapshow of Favorites table |
| */ |
| public void restoreBackup() { |
| if (mBackupRestored) return; |
| MODEL_EXECUTOR.execute(() -> { |
| try (LauncherDbUtils.SQLiteTransaction transaction = (LauncherDbUtils.SQLiteTransaction) |
| LauncherSettings.Settings.call( |
| mLauncher.getContentResolver(), |
| LauncherSettings.Settings.METHOD_NEW_TRANSACTION) |
| .getBinder(LauncherSettings.Settings.EXTRA_VALUE)) { |
| if (!tableExists(transaction.getDb(), HYBRID_HOTSEAT_BACKUP_TABLE)) { |
| return; |
| } |
| InvariantDeviceProfile idp = mLauncher.getDeviceProfile().inv; |
| GridBackupTable backupTable = new GridBackupTable(mLauncher, |
| transaction.getDb(), idp.numHotseatIcons, idp.numColumns, |
| idp.numRows); |
| backupTable.restoreFromCustomBackupTable(HYBRID_HOTSEAT_BACKUP_TABLE, true); |
| transaction.commit(); |
| mBackupRestored = true; |
| mLauncher.getModel().forceReload(); |
| } |
| }); |
| } |
| } |