Settings user restriction changes: wireless & networks changes.

Bug: 14081992
Change-Id: I32b0f06da7e7ff9bd8303ce26be2584e6cddbedc

res/layout/apn_disallowed_preference_screen.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * 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.
+ */
+-->
+<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/apn_settings_not_available"
+                android:textAppearance="?android:attr/textAppearanceMedium" />
+</FrameLayout>

res/values/strings.xml

@@ -3126,6 +3126,12 @@
     <!-- Setting checkbox title for Whether to enable USB debugging support on the phone. -->
     <!-- Error message for users that aren't allowed to modify developer options [CHAR LIMIT=none] -->
     <string name="development_settings_not_available">Developer options are not available for this user</string>
+    <!-- Error message for users that aren't allowed to modify VPN settings [CHAR LIMIT=none] -->
+    <string name="vpn_settings_not_available">VPN settings are not available for this user</string>
+    <!-- Error message for users that aren't allowed to modify Tethering settings [CHAR LIMIT=none] -->
+    <string name="tethering_settings_not_available">Tethering settings are not available for this user</string>
+    <!-- Error message for users that aren't allowed to modify Access Point Names settings [CHAR LIMIT=none] -->
+    <string name="apn_settings_not_available">Access Point Name settings are not available for this user</string>
     <string name="enable_adb">USB debugging</string>
     <!-- Setting checkbox summary for Whether to enable USB debugging support on the phone -->
     <string name="enable_adb_summary">Debug mode when USB is connected</string>

src/com/android/settings/ApnSettings.java

@@ -32,6 +32,7 @@ import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
 import android.os.Message;
+import android.os.UserManager;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceGroup;
@@ -83,10 +84,14 @@ public class ApnSettings extends PreferenceActivity implements
     private RestoreApnProcessHandler mRestoreApnProcessHandler;
     private HandlerThread mRestoreDefaultApnThread;
 
+    private UserManager mUm;
+
     private String mSelectedKey;
 
     private IntentFilter mMobileStateFilter;
 
+    private boolean mUnavailable;
+
     private final BroadcastReceiver mMobileStateReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
@@ -119,6 +124,14 @@ public class ApnSettings extends PreferenceActivity implements
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
+        mUm = (UserManager) getSystemService(Context.USER_SERVICE);
+
+        if (mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS)) {
+            mUnavailable = true;
+            setContentView(R.layout.apn_disallowed_preference_screen);
+            return;
+        }
+
         addPreferencesFromResource(R.xml.apn_settings);
         getListView().setItemsCanFocus(true);
 
@@ -130,6 +143,10 @@ public class ApnSettings extends PreferenceActivity implements
     protected void onResume() {
         super.onResume();
 
+        if (mUnavailable) {
+            return;
+        }
+
         registerReceiver(mMobileStateReceiver, mMobileStateFilter);
 
         if (!mRestoreDefaultApnMode) {
@@ -143,6 +160,10 @@ public class ApnSettings extends PreferenceActivity implements
     protected void onPause() {
         super.onPause();
 
+        if (mUnavailable) {
+            return;
+        }
+
         unregisterReceiver(mMobileStateReceiver);
     }
 

src/com/android/settings/DevelopmentSettings.java

@@ -465,6 +465,9 @@ public class DevelopmentSettings extends SettingsPreferenceFragment
     public void onPause() {
         super.onPause();
 
+        if (mUnavailable) {
+            return;
+        }
         mSwitchBar.removeOnSwitchChangeListener(this);
         mSwitchBar.hide();
     }

src/com/android/settings/TetherSettings.java

@@ -47,6 +47,7 @@ import android.text.TextUtils;
 import android.view.ViewGroup;
 import android.view.ViewParent;
 import android.webkit.WebView;
+import android.widget.TextView;
 
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -92,6 +93,7 @@ public class TetherSettings extends SettingsPreferenceFragment
     private WifiApDialog mDialog;
     private WifiManager mWifiManager;
     private WifiConfiguration mWifiConfig = null;
+    private UserManager mUm;
 
     private boolean mUsbConnected;
     private boolean mMassStorageActive;
@@ -110,11 +112,21 @@ public class TetherSettings extends SettingsPreferenceFragment
     private String[] mProvisionApp;
     private static final int PROVISION_REQUEST = 0;
 
+    private boolean mUnavailable;
+
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         addPreferencesFromResource(R.xml.tether_prefs);
 
+        mUm = (UserManager) getSystemService(Context.USER_SERVICE);
+
+        if (mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING)) {
+            mUnavailable = true;
+            setPreferenceScreen(new PreferenceScreen(getActivity(), null));
+            return;
+        }
+
         final Activity activity = getActivity();
         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
         if (adapter != null) {
@@ -264,6 +276,15 @@ public class TetherSettings extends SettingsPreferenceFragment
     public void onStart() {
         super.onStart();
 
+        if (mUnavailable) {
+            TextView emptyView = (TextView) getView().findViewById(android.R.id.empty);
+            getListView().setEmptyView(emptyView);
+            if (emptyView != null) {
+                emptyView.setText(R.string.tethering_settings_not_available);
+            }
+            return;
+        }
+
         final Activity activity = getActivity();
 
         mMassStorageActive = Environment.MEDIA_SHARED.equals(Environment.getExternalStorageState());
@@ -297,6 +318,10 @@ public class TetherSettings extends SettingsPreferenceFragment
     @Override
     public void onStop() {
         super.onStop();
+
+        if (mUnavailable) {
+            return;
+        }
         getActivity().unregisterReceiver(mTetherChangeReceiver);
         mTetherChangeReceiver = null;
         if (mWifiApEnabler != null) {

src/com/android/settings/WirelessSettings.java

@@ -33,6 +33,7 @@ import android.nfc.NfcAdapter;
 import android.os.Bundle;
 import android.os.SystemProperties;
 import android.os.UserHandle;
+import android.os.UserManager;
 import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceChangeListener;
@@ -79,6 +80,7 @@ public class WirelessSettings extends RestrictedSettingsFragment
     private ConnectivityManager mCm;
     private TelephonyManager mTm;
     private PackageManager mPm;
+    private UserManager mUm;
 
     private static final int MANAGE_MOBILE_PLAN_DIALOG_ID = 1;
     private static final String SAVED_MANAGE_MOBILE_PLAN_MSG = "mManageMobilePlanMessage";
@@ -244,6 +246,7 @@ public class WirelessSettings extends RestrictedSettingsFragment
         mCm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
         mTm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
         mPm = getPackageManager();
+        mUm = (UserManager) getSystemService(Context.USER_SERVICE);
 
         addPreferencesFromResource(R.xml.wireless_settings);
 
@@ -289,10 +292,11 @@ public class WirelessSettings extends RestrictedSettingsFragment
         if (toggleable == null || !toggleable.contains(Settings.Global.RADIO_WIFI)) {
             findPreference(KEY_VPN_SETTINGS).setDependency(KEY_TOGGLE_AIRPLANE);
         }
-        if (isSecondaryUser) { // Disable VPN
+        // Disable VPN.
+        if (isSecondaryUser || mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_VPN)) {
             removePreference(KEY_VPN_SETTINGS);
         }
-        protectByRestrictions(KEY_VPN_SETTINGS);
+
         // Manually set dependencies for Bluetooth when not toggleable.
         if (toggleable == null || !toggleable.contains(Settings.Global.RADIO_BLUETOOTH)) {
             // No bluetooth-dependent items in the list. Code kept in case one is added later.
@@ -312,8 +316,10 @@ public class WirelessSettings extends RestrictedSettingsFragment
             mNfcEnabler = null;
         }
 
-        // Remove Mobile Network Settings and Manage Mobile Plan if it's a wifi-only device.
+        // Remove Mobile Network Settings and Manage Mobile Plan for secondary users,
-        if (isSecondaryUser || Utils.isWifiOnly(getActivity())) {
+        // if it's a wifi-only device, or if the settings are restricted.
+        if (isSecondaryUser || Utils.isWifiOnly(getActivity())
+                || mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS)) {
             removePreference(KEY_MOBILE_NETWORK_SETTINGS);
             removePreference(KEY_MANAGE_MOBILE_PLAN);
         }
@@ -327,8 +333,6 @@ public class WirelessSettings extends RestrictedSettingsFragment
                 removePreference(KEY_MANAGE_MOBILE_PLAN);
             }
         }
-        protectByRestrictions(KEY_MOBILE_NETWORK_SETTINGS);
-        protectByRestrictions(KEY_MANAGE_MOBILE_PLAN);
 
         // Remove SMS Application if the device does not support SMS
         if (!isSmsSupported()) {
@@ -351,13 +355,13 @@ public class WirelessSettings extends RestrictedSettingsFragment
         // Disable Tethering if it's not allowed or if it's a wifi-only device
         ConnectivityManager cm =
                 (ConnectivityManager) activity.getSystemService(Context.CONNECTIVITY_SERVICE);
-        if (isSecondaryUser || !cm.isTetheringSupported()) {
+        if (isSecondaryUser || !cm.isTetheringSupported()
+                || mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING)) {
             getPreferenceScreen().removePreference(findPreference(KEY_TETHER_SETTINGS));
         } else {
             Preference p = findPreference(KEY_TETHER_SETTINGS);
             p.setTitle(Utils.getTetheringLabel(cm));
         }
-        protectByRestrictions(KEY_TETHER_SETTINGS);
 
         // Enable link to CMAS app settings depending on the value in config.xml.
         boolean isCellBroadcastAppLinkEnabled = this.getResources().getBoolean(
@@ -372,12 +376,12 @@ public class WirelessSettings extends RestrictedSettingsFragment
         } catch (IllegalArgumentException ignored) {
             isCellBroadcastAppLinkEnabled = false;  // CMAS app not installed
         }
-        if (isSecondaryUser || !isCellBroadcastAppLinkEnabled) {
+        if (isSecondaryUser || !isCellBroadcastAppLinkEnabled
+                || mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS)) {
             PreferenceScreen root = getPreferenceScreen();
             Preference ps = findPreference(KEY_CELL_BROADCAST_SETTINGS);
             if (ps != null) root.removePreference(ps);
         }
-        protectByRestrictions(KEY_CELL_BROADCAST_SETTINGS);
     }
 
     @Override

src/com/android/settings/vpn2/VpnSettings.java

@@ -29,8 +29,10 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
+import android.os.UserManager;
 import android.preference.Preference;
 import android.preference.PreferenceGroup;
+import android.preference.PreferenceScreen;
 import android.security.Credentials;
 import android.security.KeyStore;
 import android.text.TextUtils;
@@ -45,6 +47,7 @@ import android.view.View;
 import android.widget.AdapterView.AdapterContextMenuInfo;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import com.android.internal.net.LegacyVpnInfo;
@@ -80,14 +83,25 @@ public class VpnSettings extends SettingsPreferenceFragment implements
 
     private Handler mUpdater;
     private LegacyVpnInfo mInfo;
+    private UserManager mUm;
 
     // The key of the profile for the current ContextMenu.
     private String mSelectedKey;
 
+    private boolean mUnavailable;
+
     @Override
     public void onCreate(Bundle savedState) {
         super.onCreate(savedState);
 
+        mUm = (UserManager) getSystemService(Context.USER_SERVICE);
+
+        if (mUm.hasUserRestriction(UserManager.DISALLOW_CONFIG_VPN)) {
+            mUnavailable = true;
+            setPreferenceScreen(new PreferenceScreen(getActivity(), null));
+            return;
+        }
+
         setHasOptionsMenu(true);
         addPreferencesFromResource(R.xml.vpn_settings2);
 
@@ -156,6 +170,15 @@ public class VpnSettings extends SettingsPreferenceFragment implements
     public void onResume() {
         super.onResume();
 
+        if (mUnavailable) {
+            TextView emptyView = (TextView) getView().findViewById(android.R.id.empty);
+            getListView().setEmptyView(emptyView);
+            if (emptyView != null) {
+                emptyView.setText(R.string.vpn_settings_not_available);
+            }
+            return;
+        }
+
         final boolean pickLockdown = getActivity()
                 .getIntent().getBooleanExtra(EXTRA_PICK_LOCKDOWN, false);
         if (pickLockdown) {
@@ -214,6 +237,10 @@ public class VpnSettings extends SettingsPreferenceFragment implements
     public void onPause() {
         super.onPause();
 
+        if (mUnavailable) {
+            return;
+        }
+
         // Hide the dialog if there is one.
         if (mDialog != null) {
             mDialog.setOnDismissListener(null);