Merge "Show warning dialog in a multiuser system when adding a new account." into jb-mr1-dev

AndroidManifest.xml

@@ -1377,7 +1377,7 @@
         </activity>
 
         <activity android:name="com.android.settings.accounts.AddAccountSettings"
-            android:theme="@android:style/Theme.Translucent.NoTitleBar"
+            android:theme="@android:style/Theme.Holo.Panel"
             android:configChanges="orientation|keyboardHidden|screenSize"
             android:label="@string/header_add_an_account"
             android:taskAffinity="com.android.settings"

res/values/strings.xml

@@ -3744,7 +3744,10 @@
     <string name="background_data_dialog_message">Disabling background data extends battery life and lowers data use. Some apps may still use the background data connection.</string>
     <!-- Title for a checkbox that enables data synchronization in the account and sync screen [CHAR LIMIT=35] -->
     <string name="sync_automatically">Auto-sync app data</string>
-
+    <!-- Account creation warning in multi-user tablets [CHAR LIMIT=none] -->
+    <string name="add_account_shared_system_warning" product="tablet">Reminder: As with any shared computer, there is some risk that other users may find a way to access your data on this tablet.</string>
+    <!-- Account creation warning in multi-user phones[CHAR LIMIT=none] -->
+    <string name="add_account_shared_system_warning" product="default">Reminder: As with any shared computer, there is some risk that other users may find a way to access your data on this phone.</string>
     <!-- Sync status messages on Accounts & Synchronization settings --><skip />
     <!-- Sync status shown when sync is enabled [CHAR LIMIT=25] -->
     <string name="sync_enabled">Sync is ON</string>

src/com/android/settings/accounts/AddAccountSettings.java

@@ -22,16 +22,25 @@ import android.accounts.AccountManagerFuture;
 import android.accounts.AuthenticatorException;
 import android.accounts.OperationCanceledException;
 import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
 import android.app.PendingIntent;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
 
+import com.android.settings.Utils;
+import com.android.settings.R;
+
 import java.io.IOException;
 
 /**
  * Entry point Actiivty for account setup. Works as follows
- *
+ * 0) If it is a multi-user system with multiple users, it shows a warning dialog first.
+ *    If the user accepts this warning, it moves on to step 1.
  * 1) When the other Activities launch this Activity, it launches {@link ChooseAccountActivity}
  *    without showing anything.
  * 2) After receiving an account type from ChooseAccountActivity, this Activity launches the
@@ -56,6 +65,7 @@ public class AddAccountSettings extends Activity {
      * application.
      */
     private static final String KEY_CALLER_IDENTITY = "pendingIntent";
+    private static final String KEY_SHOWED_WARNING = "showedWarning";
 
     private static final String TAG = "AccountSettings";
 
@@ -63,6 +73,8 @@ public class AddAccountSettings extends Activity {
 
     private static final int CHOOSE_ACCOUNT_REQUEST = 1;
 
+    private static final int DLG_MULTIUSER_WARNING = 1;
+
     private PendingIntent mPendingIntent;
 
     private AccountManagerCallback<Bundle> mCallback = new AccountManagerCallback<Bundle>() {
@@ -90,21 +102,57 @@ public class AddAccountSettings extends Activity {
     };
 
     private boolean mAddAccountCalled = false;
+    private boolean mShowedMultiuserWarning;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         if (savedInstanceState != null) {
+            mShowedMultiuserWarning = savedInstanceState.getBoolean(KEY_SHOWED_WARNING);
             mAddAccountCalled = savedInstanceState.getBoolean(KEY_ADD_CALLED);
             if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "restored");
         }
 
-        if (mAddAccountCalled) {
-            // We already called add account - maybe the callback was lost.
-            finish();
-            return;
+        if (!Utils.hasMultipleUsers(this)) {
+            mShowedMultiuserWarning = true;
         }
+
+        // Show the multiuser warning dialog first. If that was already shown and accepted,
+        // then show the account type chooser.
+        if (!mShowedMultiuserWarning) {
+            showMultiuserWarning();
+        } else {
+            if (mAddAccountCalled) {
+                // We already called add account - maybe the callback was lost.
+                finish();
+                return;
+            }
+            showChooseAccount();
+        }
+    }
+
+    private void showMultiuserWarning() {
+        showDialog(DLG_MULTIUSER_WARNING);
+    }
+
+    public Dialog onCreateDialog(int dlgId) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setMessage(R.string.add_account_shared_system_warning);
+        builder.setPositiveButton(android.R.string.ok, mDialogClickListener);
+        builder.setNegativeButton(android.R.string.cancel, mDialogClickListener);
+        builder.setOnDismissListener(new OnDismissListener() {
+            public void onDismiss(DialogInterface di) {
+                if (!mShowedMultiuserWarning) {
+                    setResult(RESULT_CANCELED);
+                    finish();
+                }
+            }
+        });
+        return builder.create();
+    }
+
+    private void showChooseAccount() {
         final String[] authorities =
                 getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
         final String[] accountTypes =
@@ -137,6 +185,7 @@ public class AddAccountSettings extends Activity {
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
         outState.putBoolean(KEY_ADD_CALLED, mAddAccountCalled);
+        outState.putBoolean(KEY_SHOWED_WARNING, mShowedMultiuserWarning);
         if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "saved");
     }
 
@@ -154,4 +203,17 @@ public class AddAccountSettings extends Activity {
                 null /* handler */);
         mAddAccountCalled  = true;
     }
+
+    private OnClickListener mDialogClickListener = new OnClickListener() {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+            if (which == Dialog.BUTTON_POSITIVE) {
+                mShowedMultiuserWarning = true;
+                showChooseAccount();
+            } else if (which == Dialog.BUTTON_NEGATIVE) {
+                setResult(RESULT_CANCELED);
+                finish();
+            }
+        }
+    };
 }