Network Reset should have a lockdown like Factory Reset.

bug:20332322
Change-Id: I645ad0d226869042c11225630e4de5968ebb7a0d

res/layout/network_reset_disallowed_screen.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2015 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.
+ */
+-->
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             android:id="@+id/listContainer"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent">
+
+        <ListView android:id="@android:id/list"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:drawSelectorOnTop="false"
+                android:scrollbarStyle="insideOverlay"
+                android:background="@android:color/white"
+                android:cacheColorHint="@android:color/white"
+                android:fadingEdgeLength="16dip" />
+
+        <TextView android:id="@android:id/empty"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:gravity="center"
+                android:text="@string/network_reset_not_available"
+                android:textAppearance="?android:attr/textAppearanceMedium" />
+</FrameLayout>

res/values/strings.xml

@@ -2557,6 +2557,8 @@
     <string name="reset_network_final_button_text">Reset settings</string>
     <!-- Reset settings confirmation screen title [CHAR LIMIT=30] -->
     <string name="reset_network_confirm_title">Reset?</string>
+    <!-- Error message for users that aren't allowed to reset network settings [CHAR LIMIT=none] -->
+    <string name="network_reset_not_available">Network reset is not available for this user</string>
     <!-- Reset settings complete toast text [CHAR LIMIT=75] -->
     <string name="reset_network_complete_toast">Network settings have been reset</string>
 
@@ -5858,6 +5860,7 @@
     <string name="keywords_voice_input">recognizer input speech speak language hands-free hand free recognition offensive word audio history bluetooth headset</string>
     <string name="keywords_text_to_speech_output">rate language default speak speaking tts accessibility reader blind</string>
     <string name="keywords_date_and_time">clock military</string>
+    <string name="keywords_network_reset">reset restore factory</string>
     <string name="keywords_factory_data_reset">wipe delete restore clear remove</string>
     <string name="keywords_printing">printer</string>
     <string name="keywords_sounds_and_notifications">speaker beep</string>

res/xml/privacy_settings.xml

@@ -48,7 +48,9 @@
 
     <!-- Network reset -->
     <PreferenceScreen
+        android:key="network_reset"
         android:title="@string/reset_network_title"
+        settings:keywords="@string/keywords_network_reset"
         android:fragment="com.android.settings.ResetNetwork" />
 
     <!-- Factory reset -->

src/com/android/settings/PrivacySettings.java

@@ -54,6 +54,7 @@ public class PrivacySettings extends SettingsPreferenceFragment implements Index
     private static final String AUTO_RESTORE = "auto_restore";
     private static final String CONFIGURE_ACCOUNT = "configure_account";
     private static final String BACKUP_INACTIVE = "backup_inactive";
+    private static final String NETWORK_RESET = "network_reset";
     private static final String FACTORY_RESET = "factory_reset";
     private static final String TAG = "PrivacySettings";
     private IBackupManager mBackupManager;
@@ -244,5 +245,9 @@ public class PrivacySettings extends SettingsPreferenceFragment implements Index
                 UserManager.DISALLOW_FACTORY_RESET)) {
             nonVisibleKeys.add(FACTORY_RESET);
         }
+        if (UserManager.get(context).hasUserRestriction(
+                UserManager.DISALLOW_NETWORK_RESET)) {
+            nonVisibleKeys.add(NETWORK_RESET);
+        }
     }
 }

src/com/android/settings/ResetNetwork.java

@@ -26,6 +26,7 @@ import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.SystemProperties;
+import android.os.Process;
 import android.os.UserManager;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
@@ -191,6 +192,12 @@ public class ResetNetwork extends InstrumentedFragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
+        if (!Process.myUserHandle().isOwner()
+                || UserManager.get(getActivity()).hasUserRestriction(
+                UserManager.DISALLOW_NETWORK_RESET)) {
+            return inflater.inflate(R.layout.network_reset_disallowed_screen, null);
+        }
+
         mContentView = inflater.inflate(R.layout.reset_network, null);
 
         establishInitialState();

src/com/android/settings/ResetNetworkConfirm.java

@@ -22,6 +22,7 @@ import android.net.ConnectivityManager;
 import android.net.NetworkPolicyManager;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
+import android.os.UserManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.view.LayoutInflater;
@@ -108,6 +109,10 @@ public class ResetNetworkConfirm extends InstrumentedFragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
+        if (UserManager.get(getActivity()).hasUserRestriction(
+                UserManager.DISALLOW_NETWORK_RESET)) {
+            return inflater.inflate(R.layout.network_reset_disallowed_screen, null);
+        }
         mContentView = inflater.inflate(R.layout.reset_network_confirm, null);
         establishFinalConfirmationState();
         return mContentView;