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/*
* Copyright (C) 2014 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 org.kelar.inputmethod.latin.accounts;
import android.accounts.AccountManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.text.TextUtils;
import android.util.Log;
import org.kelar.inputmethod.annotations.UsedForTesting;
import org.kelar.inputmethod.latin.settings.LocalSettingsConstants;
/**
* {@link BroadcastReceiver} for {@link AccountManager#LOGIN_ACCOUNTS_CHANGED_ACTION}.
*/
public class AccountsChangedReceiver extends BroadcastReceiver {
static final String TAG = "AccountsChangedReceiver";
@Override
public void onReceive(Context context, Intent intent) {
if (!AccountManager.LOGIN_ACCOUNTS_CHANGED_ACTION.equals(intent.getAction())) {
Log.w(TAG, "Received unknown broadcast: " + intent);
return;
}
// Ideally the account preference could live in a different preferences file
// that wasn't being backed up and restored, however the preference fragments
// currently only deal with the default shared preferences which is why
// separating this out into a different file is not trivial currently.
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
final String currentAccount = prefs.getString(
LocalSettingsConstants.PREF_ACCOUNT_NAME, null);
removeUnknownAccountFromPreference(prefs, getAccountsForLogin(context), currentAccount);
}
/**
* Helper method to help test this receiver.
*/
@UsedForTesting
protected String[] getAccountsForLogin(Context context) {
return LoginAccountUtils.getAccountsForLogin(context);
}
/**
* Removes the currentAccount from preferences if it's not found
* in the list of current accounts.
*/
private static void removeUnknownAccountFromPreference(final SharedPreferences prefs,
final String[] accounts, final String currentAccount) {
if (currentAccount == null) {
return;
}
for (final String account : accounts) {
if (TextUtils.equals(currentAccount, account)) {
return;
}
}
Log.i(TAG, "The current account was removed from the system: " + currentAccount);
prefs.edit()
.remove(LocalSettingsConstants.PREF_ACCOUNT_NAME)
.apply();
}
}
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