The Tor Browser: comparison mobile/android/base/sync/config/activities/SelectEnginesActivity.java

--1:000000000000
+:dde71f01669f
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+package org.mozilla.gecko.sync.config.activities;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import org.mozilla.gecko.R;
+import org.mozilla.gecko.background.common.log.Logger;
+import org.mozilla.gecko.sync.SyncConfiguration;
+import org.mozilla.gecko.sync.ThreadPool;
+import org.mozilla.gecko.sync.setup.SyncAccounts;
+import org.mozilla.gecko.sync.syncadapter.SyncAdapter;
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnDismissListener;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.widget.ListView;
+import android.widget.Toast;
+/**
+* Provides a user-facing interface for selecting engines to sync. This activity
+* can be launched from the Sync Settings preferences screen, and will save the
+* selected engines to the
+* <code>SyncConfiguration.PREF_USER_SELECTED_ENGINES_TO_SYNC</code> pref.
+*
+* On launch, it displays the engines stored in the saved pref if it exists, or
+* <code>SyncConfiguration.enabledEngineNames()</code> if it doesn't, defaulting
+* to <code>SyncConfiguration.validEngineNames()</code> if neither exists.
+*
+* During a sync, the
+* <code>SyncConfiguration.PREF_USER_SELECTED_ENGINES_TO_SYNC</code> pref will
+* be cleared after the engine changes are applied to meta/global.
+*/
+public class SelectEnginesActivity extends Activity implements
+DialogInterface.OnClickListener, DialogInterface.OnMultiChoiceClickListener {
+public final static String LOG_TAG = "SelectEnginesAct";
+protected AccountManager mAccountManager;
+protected Context mContext;
+// Collections names corresponding to displayed (localized) engine options.
+final String[] _collectionsNames = new String[] {
+"bookmarks",
+"passwords",
+"history",
+"tabs"
+};
+// Engine names localized for display in Sync Settings.
+protected String[] _options;
+// Selection state of engines corresponding to _options array.
+final boolean[] _selections = new boolean[_collectionsNames.length];
+protected Account account;
+protected SharedPreferences accountPrefs;
+@Override
+public void onCreate(Bundle savedInstanceState) {
+super.onCreate(savedInstanceState);
+mContext = getApplicationContext();
+mAccountManager = AccountManager.get(mContext);
+_options = new String[] {
+getString(R.string.sync_configure_engines_title_bookmarks),
+getString(R.string.sync_configure_engines_title_passwords),
+getString(R.string.sync_configure_engines_title_history),
+getString(R.string.sync_configure_engines_title_tabs) };
+// Fetch account prefs for configuring engines.
+ThreadPool.run(new Runnable() {
+@Override
+public void run() {
+Account[] accounts = SyncAccounts.syncAccounts(mContext);
+if (accounts.length == 0) {
+Logger.error(LOG_TAG, "Failed to get account!");
+finish();
+return;
+} else {
+// Only supports one account per type.
+account = accounts[0];
+try {
+if (accountPrefs == null) {
+accountPrefs = SyncAccounts.blockingPrefsFromDefaultProfileV0(mContext, mAccountManager, account);
+}
+} catch (Exception e) {
+Logger.error(LOG_TAG, "Failed to get sync account info or shared preferences.", e);
+finish();
+}
+setSelectionsInArray(getEnginesToSelect(accountPrefs), _selections);
+}
+}
+});
+}
+@Override
+public void onResume() {
+super.onResume();
+if (accountPrefs != null) {
+setSelectionsInArray(getEnginesToSelect(accountPrefs), _selections);
+}
+AlertDialog dialog = new AlertDialog.Builder(this)
+.setTitle(R.string.sync_configure_engines_sync_my_title)
+.setMultiChoiceItems(_options, _selections, this)
+.setIcon(R.drawable.icon).setPositiveButton(android.R.string.ok, this)
+.setNegativeButton(android.R.string.cancel, this).create();
+dialog.setOnDismissListener(new OnDismissListener() {
+@Override
+public void onDismiss(DialogInterface dialog) {
+finish();
+}
+});
+dialog.show();
+}
+private static Set<String> getEnginesFromPrefs(SharedPreferences syncPrefs) {
+Set<String> engines = SyncConfiguration.getEnabledEngineNames(syncPrefs);
+if (engines == null) {
+engines = SyncConfiguration.validEngineNames();
+}
+return engines;
+}
+/**
+* Fetches the engine names that should be displayed as selected for syncing.
+* Check first for selected engines set by this activity, then the enabled
+* engines, and finally default to the set of valid engine names for Android
+* Sync if neither exists.
+*
+* @param syncPrefs
+*          <code>SharedPreferences</code> of Account being modified.
+* @return Set<String> of engine names to display as selected. Should never be
+*         null.
+*/
+public static Set<String> getEnginesToSelect(SharedPreferences syncPrefs) {
+Set<String> engines = getEnginesFromPrefs(syncPrefs);
+Map<String, Boolean> engineSelections = SyncConfiguration.getUserSelectedEngines(syncPrefs);
+if (engineSelections != null) {
+for (Entry<String, Boolean> pair : engineSelections.entrySet()) {
+if (pair.getValue()) {
+engines.add(pair.getKey());
+} else {
+engines.remove(pair.getKey());
+}
+}
+}
+return engines;
+}
+public void setSelectionsInArray(Set<String> selected, boolean[] array) {
+for (int i = 0; i < _collectionsNames.length; i++) {
+array[i] = selected.contains(_collectionsNames[i]);
+}
+}
+@Override
+public void onClick(DialogInterface dialog, int which) {
+if (which == DialogInterface.BUTTON_POSITIVE) {
+Logger.debug(LOG_TAG, "Saving selected engines.");
+saveSelections();
+setResult(RESULT_OK);
+Toast.makeText(this, R.string.sync_notification_savedprefs, Toast.LENGTH_SHORT).show();
+} else {
+setResult(RESULT_CANCELED);
+}
+finish();
+}
+@Override
+public void onClick(DialogInterface dialog, int which, boolean isChecked) {
+// Display multi-selection clicks in UI.
+_selections[which] = isChecked;
+ListView selectionsList = ((AlertDialog) dialog).getListView();
+selectionsList.setItemChecked(which, isChecked);
+}
+/**
+* Persists engine selection state to SharedPreferences if it has changed.
+*
+* @return true if changed, false otherwise.
+*/
+private void saveSelections() {
+boolean[] origSelections = new boolean[_options.length];
+setSelectionsInArray(getEnginesFromPrefs(accountPrefs), origSelections);
+Map<String, Boolean> engineSelections = new HashMap<String, Boolean>();
+for (int i = 0; i < _selections.length; i++) {
+if (_selections[i] != origSelections[i]) {
+engineSelections.put(_collectionsNames[i], _selections[i]);
+}
+}
+// No GlobalSession.config, so store directly to prefs.
+SyncConfiguration.storeSelectedEnginesToPrefs(accountPrefs, engineSelections);
+// Request immediate sync.
+SyncAdapter.requestImmediateSync(account, null);
+}
+}

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comparison: mobile/android/base/sync/config/activities/SelectEnginesActivity.java

mobile/android/base/sync/config/activities/SelectEnginesActivity.java