Add account change receiver to handle account removal

Also cleanup the manifest to group similar components together.
Moving LoginAccountUtils to its own package

Bug: 17464068
Change-Id: Iad7928855531d58334b1e4039bb45b97dde75462

3 files changed, 77 insertions, 1 deletions

diff --git a/java/src/com/android/inputmethod/latin/accounts/AccountsChangedReceiver.java b/java/src/com/android/inputmethod/latin/accounts/AccountsChangedReceiver.java
new file mode 100644
index 000000000..9445ce4c3
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/accounts/AccountsChangedReceiver.java
@@ -0,0 +1,72 @@
+/*
+ * 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 com.android.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 com.android.inputmethod.annotations.UsedForTesting;
+import com.android.inputmethod.latin.settings.Settings;
+
+/**
+ * {@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;
+        }
+
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        final String currentAccount = prefs.getString(Settings.PREF_ACCOUNT_NAME, null);
+        if (currentAccount != null) {
+            final String[] accounts = getAccountsForLogin(context);
+            boolean accountFound = false;
+            for (String account : accounts) {
+                if (TextUtils.equals(currentAccount, account)) {
+                    accountFound = true;
+                    break;
+                }
+            }
+            // The current account was not found in the list of accounts, remove it.
+            if (!accountFound) {
+                Log.i(TAG, "The current account was removed from the system: " + currentAccount);
+                prefs.edit()
+                        .remove(Settings.PREF_ACCOUNT_NAME)
+                        .apply();
+            }
+        }
+    }
+
+    /**
+     * Helper method to help test this receiver.
+     */
+    @UsedForTesting
+    protected String[] getAccountsForLogin(Context context) {
+        return LoginAccountUtils.getAccountsForLogin(context);
+    }
+}
diff --git a/java/src/com/android/inputmethod/latin/settings/AccountsSettingsFragment.java b/java/src/com/android/inputmethod/latin/settings/AccountsSettingsFragment.java
index 06ab1e2d2..ffb0ad7bf 100644
--- a/java/src/com/android/inputmethod/latin/settings/AccountsSettingsFragment.java
+++ b/java/src/com/android/inputmethod/latin/settings/AccountsSettingsFragment.java
@@ -30,8 +30,8 @@ import android.widget.Toast;
 
 import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.SubtypeSwitcher;
+import com.android.inputmethod.latin.accounts.LoginAccountUtils;
 import com.android.inputmethod.latin.define.ProductionFlags;
-import com.android.inputmethod.latin.utils.LoginAccountUtils;
 
 import javax.annotation.Nullable;
 
diff --git a/java/src/com/android/inputmethod/latin/settings/SettingsValues.java b/java/src/com/android/inputmethod/latin/settings/SettingsValues.java
index 3339ab57f..964d5ce33 100644
--- a/java/src/com/android/inputmethod/latin/settings/SettingsValues.java
+++ b/java/src/com/android/inputmethod/latin/settings/SettingsValues.java
@@ -64,6 +64,7 @@ public class SettingsValues {
     public final boolean mSoundOn;
     public final boolean mKeyPreviewPopupOn;
     public final boolean mShowsVoiceInputKey;
+    public final String mAccountName;
     public final boolean mIncludesOtherImesInLanguageSwitchList;
     public final boolean mShowsLanguageSwitchKey;
     public final boolean mUseContactsDict;
@@ -140,6 +141,7 @@ public class SettingsValues {
         mShowsVoiceInputKey = needsToShowVoiceInputKey(prefs, res)
                 && mInputAttributes.mShouldShowVoiceInputKey
                 && SubtypeSwitcher.getInstance().isShortcutImeEnabled();
+        mAccountName = prefs.getString(Settings.PREF_ACCOUNT_NAME, null);
         final String autoCorrectionThresholdRawValue = prefs.getString(
                 Settings.PREF_AUTO_CORRECTION_THRESHOLD,
                 res.getString(R.string.auto_correction_threshold_mode_index_modest));
@@ -383,6 +385,8 @@ public class SettingsValues {
         sb.append("" + mKeyPreviewPopupOn);
         sb.append("\n   mShowsVoiceInputKey = ");
         sb.append("" + mShowsVoiceInputKey);
+        sb.append("\n   mAccountName = ");
+        sb.append("" + mAccountName);
         sb.append("\n   mIncludesOtherImesInLanguageSwitchList = ");
         sb.append("" + mIncludesOtherImesInLanguageSwitchList);
         sb.append("\n   mShowsLanguageSwitchKey = ");