Add a screen to show OEM backup settings.
Moves the backup settings logic to BackupSettingsHelper and
BackupSettingsActivity:
- If the manufacturer provides the intent and the label for their backup
settings in the config.xml, a new intermediate fragment is shown for
Backup settings to let the user pick either standard backup settings or
OEM provided backup settings.
- If config.xml doesn't contain the intent, BackupSettingsActivity is
used as a trampoline activity to launch backup settings provided by the
backup transport of the default backup settings activity, i.e.
PrivacySettingsActivity.
Bug: 34700410
Bug: 33655074
Bug: 33654991
Test: make RunSettingsRoboTests
Change-Id: I78e340fbf926b2a9dc2c4e3942f9337c3c7a933c
diff --git a/src/com/android/settings/backup/BackupSettingsHelper.java b/src/com/android/settings/backup/BackupSettingsHelper.java
new file mode 100644
index 0000000..b0d6cf8
--- /dev/null
+++ b/src/com/android/settings/backup/BackupSettingsHelper.java
@@ -0,0 +1,237 @@
+/*
+ * 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.backup;
+
+
+import android.app.backup.BackupManager;
+import android.app.backup.IBackupManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.UserHandle;
+import android.util.Log;
+
+import android.support.annotation.VisibleForTesting;
+
+import com.android.settings.R;
+import com.android.settings.Settings.PrivacySettingsActivity;
+import com.android.settingslib.drawer.SettingsDrawerActivity;
+import java.net.URISyntaxException;
+
+/**
+ * Helper class for {@link BackupSettingsActivity} that interacts with {@link IBackupManager}.
+ */
+public class BackupSettingsHelper {
+ private static final String TAG = "BackupSettingsHelper";
+
+ private IBackupManager mBackupManager = IBackupManager.Stub.asInterface(
+ ServiceManager.getService(Context.BACKUP_SERVICE));
+
+ private Context mContext;
+
+ public BackupSettingsHelper(Context context) {
+ mContext = context;
+ }
+
+ /**
+ * Returns an intent to launch backup settings from backup transport if the intent was provided
+ * by the transport. Otherwise returns the intent to launch the default backup settings screen.
+ *
+ * @return Intent for launching backup settings
+ */
+ public Intent getIntentForBackupSettings() {
+ Intent intent;
+ if (isIntentProvidedByTransport()) {
+ intent = getIntentForBackupSettingsFromTransport();
+ } else {
+ Log.e(TAG, "Backup transport has not provided an intent"
+ + " or the component for the intent is not found!");
+ intent = getIntentForDefaultBackupSettings();
+ }
+ return intent;
+ }
+
+ /**
+ * Returns a label for the settings item that will point to the backup settings provided by
+ * the transport. If no label was provided by transport, returns the default string.
+ *
+ * @return Label for the backup settings item.
+ */
+ public String getLabelForBackupSettings() {
+ String label = getLabelFromBackupTransport();
+ if (label == null || label.isEmpty()) {
+ label = mContext.getString(R.string.privacy_settings_title);
+ }
+ return label;
+ }
+
+ /**
+ * Returns a summary string for the settings item that will point to the backup settings
+ * provided by the transport. If no summary was provided by transport, returns the default
+ * string.
+ *
+ * @return Summary for the backup settings item.
+ */
+ public String getSummaryForBackupSettings() {
+ String summary = getSummaryFromBackupTransport();
+ if (summary == null) {
+ summary = mContext.getString(R.string.backup_configure_account_default_summary);
+ }
+ return summary;
+ }
+
+
+ /**
+ * Checks if the manufacturer provided an intent to launch its backup settings screen
+ * in the config file.
+ */
+ public boolean isBackupProvidedByManufacturer() {
+ if (Log.isLoggable(TAG, Log.DEBUG)) {
+ Log.d(TAG, "Checking if intent provided by manufacturer");
+ }
+ String intentString =
+ mContext.getResources().getString(R.string.config_backup_settings_intent);
+
+ return intentString != null && !intentString.isEmpty();
+ }
+
+ /**
+ * Returns the label for the backup settings item provided by the manufacturer.
+ */
+ public String getLabelProvidedByManufacturer() {
+ return mContext.getResources().getString(R.string.config_backup_settings_label);
+ }
+
+ /**
+ * Returns the intent to the backup settings screen provided by the manufacturer.
+ */
+ public Intent getIntentProvidedByManufacturer() {
+ if (Log.isLoggable(TAG, Log.DEBUG)) {
+ Log.d(TAG, "Getting a backup settings intent provided by manufacturer");
+ }
+ String intentString =
+ mContext.getResources().getString(R.string.config_backup_settings_intent);
+ if (intentString != null && !intentString.isEmpty()) {
+ try {
+ return Intent.parseUri(intentString, 0);
+ } catch (URISyntaxException e) {
+ Log.e(TAG, "Invalid intent provided by the manufacturer.", e);
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Gets the intent from Backup transport and adds the extra depending on whether the user has
+ * rights to see backup settings.
+ *
+ * @return Intent to launch Backup settings provided by the Backup transport.
+ */
+ @VisibleForTesting
+ Intent getIntentForBackupSettingsFromTransport() {
+ Intent intent = getIntentFromBackupTransport();
+ if (intent != null) {
+ intent.putExtra(BackupManager.EXTRA_BACKUP_SERVICES_AVAILABLE, isBackupServiceActive());
+ }
+ return intent;
+ }
+
+ private Intent getIntentForDefaultBackupSettings() {
+ // Extra needed by {@link SettingsDrawerActivity} to show the back button navigation.
+ return new Intent(mContext, PrivacySettingsActivity.class)
+ .putExtra(SettingsDrawerActivity.EXTRA_SHOW_MENU, true);
+ }
+
+ /**
+ * Checks if the transport provided the intent to launch the backup settings and if that
+ * intent resolves to an activity.
+ */
+ @VisibleForTesting
+ boolean isIntentProvidedByTransport() {
+ Intent intent = getIntentFromBackupTransport();
+ return intent != null && intent.resolveActivity(mContext.getPackageManager()) != null;
+ }
+
+ /**
+ * Gets an intent to launch the backup settings from the current transport using
+ * {@link com.android.internal.backup.IBackupTransport#dataManagementIntent()} API.
+ *
+ * @return intent provided by transport or null if no intent was provided.
+ */
+ private Intent getIntentFromBackupTransport() {
+ try {
+ Intent intent =
+ mBackupManager.getDataManagementIntent(mBackupManager.getCurrentTransport());
+ if (Log.isLoggable(TAG, Log.DEBUG)) {
+ if (intent != null) {
+ Log.d(TAG, "Parsed intent from backup transport: " + intent.toString());
+ } else {
+ Log.d(TAG, "Received a null intent from backup transport");
+ }
+ }
+ return intent;
+ } catch (RemoteException e) {
+ Log.e(TAG, "Error getting data management intent", e);
+ }
+ return null;
+ }
+
+ /** Checks if backup service is enabled for this user. */
+ private boolean isBackupServiceActive() {
+ boolean backupOkay;
+ try {
+ backupOkay = mBackupManager.isBackupServiceActive(UserHandle.myUserId());
+ } catch (Exception e) {
+ // things go wrong talking to the backup system => ignore and
+ // pass the default 'false' as the "backup is a thing?" state.
+ backupOkay = false;
+ }
+ return backupOkay;
+ }
+
+ @VisibleForTesting
+ String getLabelFromBackupTransport() {
+ try {
+ String label =
+ mBackupManager.getDataManagementLabel(mBackupManager.getCurrentTransport());
+ if (Log.isLoggable(TAG, Log.DEBUG)) {
+ Log.d(TAG, "Received the backup settings label from backup transport: " + label);
+ }
+ return label;
+ } catch (RemoteException e) {
+ Log.e(TAG, "Error getting data management label", e);
+ }
+ return null;
+ }
+
+ @VisibleForTesting
+ String getSummaryFromBackupTransport() {
+ try {
+ String summary =
+ mBackupManager.getDestinationString(mBackupManager.getCurrentTransport());
+ if (Log.isLoggable(TAG, Log.DEBUG)) {
+ Log.d(TAG,
+ "Received the backup settings summary from backup transport: " + summary);
+ }
+ return summary;
+ } catch (RemoteException e) {
+ Log.e(TAG, "Error getting data management summary", e);
+ }
+ return null;
+ }
+}