[DO NOT MERGE] Modify Wi-Fi details settings to restricted style

import android.os.Bundle;

import android.os.Handler;

import android.os.Looper;

import android.os.UserManager;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import androidx.annotation.VisibleForTesting;

import com.android.settings.R;

import com.android.settings.dashboard.DashboardFragment;

import com.android.settings.dashboard.RestrictedDashboardFragment;

import com.android.settings.wifi.WifiConfigUiBase;

import com.android.settings.wifi.WifiDialog;

import com.android.settingslib.RestrictedLockUtils;

 * <p>The AccessPoint should be saved to the intent Extras when launching this class via

 * {@link AccessPoint#saveWifiState(Bundle)} in order to properly render this page.

 */

public class WifiNetworkDetailsFragment extends DashboardFragment implements

public class WifiNetworkDetailsFragment extends RestrictedDashboardFragment implements

        WifiDialog.WifiDialogListener {

    private static final String TAG = "WifiNetworkDetailsFrg";

    @VisibleForTesting

    boolean mIsUiRestricted;

    private AccessPoint mAccessPoint;

    private WifiDetailPreferenceController mWifiDetailPreferenceController;

    private List<WifiDialog.WifiDialogListener> mWifiDialogListeners = new ArrayList<>();

    public WifiNetworkDetailsFragment() {

        super(UserManager.DISALLOW_CONFIG_WIFI);

    }

    @Override

    public void onCreate(Bundle icicle) {

        super.onCreate(icicle);

        setIfOnlyAvailableForAdmins(true);

        mIsUiRestricted = isUiRestricted();

    }

    @Override

    public void onStart() {

        super.onStart();

        if (mIsUiRestricted) {

            restrictUi();

        }

    }

    @VisibleForTesting

    void restrictUi() {

        if (!isUiRestrictedByOnlyAdmin()) {

            getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted);

        }

        getPreferenceScreen().removeAll();

    }

    @Override

    public void onAttach(Context context) {

        mAccessPoint = new AccessPoint(context, getArguments());

    @Override

    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {

        if (!mIsUiRestricted) {

            MenuItem item = menu.add(0, Menu.FIRST, 0, R.string.wifi_modify);

            item.setIcon(com.android.internal.R.drawable.ic_mode_edit);

            item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);

        }

        super.onCreateOptionsMenu(menu, inflater);

    }

/*

 * Copyright (C) 2021 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.settings.wifi.details;

import static org.mockito.ArgumentMatchers.anyInt;

import static org.mockito.ArgumentMatchers.eq;

import static org.mockito.Mockito.doReturn;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.never;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.verify;

import android.view.Menu;

import android.view.MenuInflater;

import android.widget.TextView;

import androidx.preference.PreferenceScreen;

import com.android.settings.R;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.RobolectricTestRunner;

@RunWith(RobolectricTestRunner.class)

public class WifiNetworkDetailsFragmentTest {

    @Mock

    Menu mMenu;

    private WifiNetworkDetailsFragment mFragment;

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mFragment = new WifiNetworkDetailsFragment();

    }

    @Test

    public void onCreateOptionsMenu_uiRestricted_shouldNotAddEditMenu() {

        mFragment.mIsUiRestricted = true;

        mFragment.onCreateOptionsMenu(mMenu, mock(MenuInflater.class));

        verify(mMenu, never()).add(anyInt(), anyInt(), anyInt(), eq(R.string.wifi_modify));

    }

    @Test

    public void restrictUi_shouldShowRestrictedText() {

        final WifiNetworkDetailsFragmentTest.FakeFragment

                fragment = spy(new WifiNetworkDetailsFragmentTest.FakeFragment());

        final PreferenceScreen screen = mock(PreferenceScreen.class);

        final TextView restrictedText = mock(TextView.class);

        doReturn(screen).when(fragment).getPreferenceScreen();

        doReturn(false).when(fragment).isUiRestrictedByOnlyAdmin();

        doReturn(restrictedText).when(fragment).getEmptyTextView();

        fragment.restrictUi();

        verify(restrictedText).setText(anyInt());

    }

    @Test

    public void restrictUi_shouldRemoveAllPreferences() {

        final WifiNetworkDetailsFragmentTest.FakeFragment

                fragment = spy(new WifiNetworkDetailsFragmentTest.FakeFragment());

        final PreferenceScreen screen = mock(PreferenceScreen.class);

        doReturn(screen).when(fragment).getPreferenceScreen();

        doReturn(true).when(fragment).isUiRestrictedByOnlyAdmin();

        fragment.restrictUi();

        verify(screen).removeAll();

    }

    // Fake WifiNetworkDetailsFragment to override the protected method as public.

    public class FakeFragment extends WifiNetworkDetailsFragment {

        @Override

        public boolean isUiRestrictedByOnlyAdmin() {

            return super.isUiRestrictedByOnlyAdmin();

        }

    }

}

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