Merge "Introduce SelectUsbConfigPreferenceController"

        controllers.add(new WifiRoamScansPreferenceController(context));

        controllers.add(new MobileDataAlwaysOnPreferenceController(context));

        controllers.add(new TetheringHardwareAccelPreferenceController(context));

        // select usb configuration

        controllers.add(new SelectUsbConfigPreferenceController(context, lifecycle));

        controllers.add(new BluetoothDeviceNoNamePreferenceController(context));

        controllers.add(new BluetoothAbsoluteVolumePreferenceController(context));

        controllers.add(new BluetoothInbandRingingPreferenceController(context));

/*

 * Copyright (C) 2017 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.development;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.hardware.usb.UsbManager;

import android.os.Bundle;

import android.support.annotation.VisibleForTesting;

import android.support.v7.preference.ListPreference;

import android.support.v7.preference.Preference;

import android.support.v7.preference.PreferenceScreen;

import android.text.TextUtils;

import com.android.settings.R;

import com.android.settingslib.core.lifecycle.Lifecycle;

import com.android.settingslib.core.lifecycle.LifecycleObserver;

import com.android.settingslib.core.lifecycle.events.OnCreate;

import com.android.settingslib.core.lifecycle.events.OnDestroy;

public class SelectUsbConfigPreferenceController extends

        DeveloperOptionsPreferenceController implements

        Preference.OnPreferenceChangeListener, LifecycleObserver, OnCreate, OnDestroy {

    private static final String USB_CONFIGURATION_KEY = "select_usb_configuration";

    private final String[] mListValues;

    private final String[] mListSummaries;

    private final UsbManager mUsbManager;

    private BroadcastReceiver mUsbReceiver;

    private ListPreference mPreference;

    public SelectUsbConfigPreferenceController(Context context, Lifecycle lifecycle) {

        super(context);

        mListValues = context.getResources().getStringArray(R.array.usb_configuration_values);

        mListSummaries = context.getResources().getStringArray(R.array.usb_configuration_titles);

        mUsbManager = (UsbManager) context.getSystemService(Context.USB_SERVICE);

        mUsbReceiver = new BroadcastReceiver() {

            @Override

            public void onReceive(Context context, Intent intent) {

                if (mPreference != null) {

                    updateUsbConfigurationValues();

                }

            }

        };

        if (lifecycle != null) {

            lifecycle.addObserver(this);

        }

    }

    @Override

    public void onCreate(Bundle savedInstanceState) {

        IntentFilter filter = new IntentFilter();

        filter.addAction(UsbManager.ACTION_USB_STATE);

        mContext.registerReceiver(mUsbReceiver, filter);

    }

    @Override

    public String getPreferenceKey() {

        return USB_CONFIGURATION_KEY;

    }

    @Override

    public void displayPreference(PreferenceScreen screen) {

        super.displayPreference(screen);

        mPreference = (ListPreference) screen.findPreference(getPreferenceKey());

    }

    @Override

    public boolean onPreferenceChange(Preference preference, Object newValue) {

        writeUsbConfigurationOption(newValue.toString());

        updateUsbConfigurationValues();

        return true;

    }

    @Override

    public void updateState(Preference preference) {

        updateUsbConfigurationValues();

    }

    @Override

    public void onDestroy() {

        mContext.unregisterReceiver(mUsbReceiver);

    }

    @Override

    protected void onDeveloperOptionsSwitchEnabled() {

        mPreference.setEnabled(true);

    }

    @Override

    protected void onDeveloperOptionsSwitchDisabled() {

        mPreference.setEnabled(false);

    }

    @VisibleForTesting

    void setCurrentFunction(String newValue, boolean usbDataUnlocked) {

        mUsbManager.setCurrentFunction(newValue, usbDataUnlocked);

    }

    private void updateUsbConfigurationValues() {

        int index = 0;

        for (int i = 0; i < mListValues.length; i++) {

            if (mUsbManager.isFunctionEnabled(mListValues[i])) {

                index = i;

                break;

            }

        }

        mPreference.setValue(mListValues[index]);

        mPreference.setSummary(mListSummaries[index]);

    }

    private void writeUsbConfigurationOption(String newValue) {

        if (TextUtils.equals(newValue, "none")) {

            setCurrentFunction(newValue, false);

        } else {

            setCurrentFunction(newValue, true);

        }

    }

}

/*

 * Copyright (C) 2017 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.development;

import static org.mockito.ArgumentMatchers.any;

import static org.mockito.ArgumentMatchers.anyBoolean;

import static org.mockito.ArgumentMatchers.anyString;

import static org.mockito.Mockito.doNothing;

import static org.mockito.Mockito.doReturn;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

import android.content.Context;

import android.hardware.usb.UsbManager;

import android.support.v7.preference.ListPreference;

import android.support.v7.preference.PreferenceScreen;

import com.android.settings.R;

import com.android.settings.TestConfig;

import com.android.settings.testutils.SettingsRobolectricTestRunner;

import com.android.settingslib.core.lifecycle.Lifecycle;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.RuntimeEnvironment;

import org.robolectric.annotation.Config;

@RunWith(SettingsRobolectricTestRunner.class)

@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)

public class SelectUsbConfigPreferenceControllerTest {

    @Mock

    private ListPreference mPreference;

    @Mock

    private PreferenceScreen mScreen;

    @Mock

    private UsbManager mUsbManager;

    private Context mContext;

    private Lifecycle mLifecycle;

    private SelectUsbConfigPreferenceController mController;

    /**

     * Array Values Key

     *

     * 0: Charging

     * 1: MTP

     * 2: PTP

     * 3: RNDIS

     * 4: Audio Source

     * 5: MIDI

     */

    private String[] mValues;

    private String[] mSummaries;

    @Before

    public void setup() {

        MockitoAnnotations.initMocks(this);

        mLifecycle = new Lifecycle();

        mContext = spy(RuntimeEnvironment.application);

        doReturn(mUsbManager).when(mContext).getSystemService(Context.USB_SERVICE);

        mValues = mContext.getResources().getStringArray(R.array.usb_configuration_values);

        mSummaries = mContext.getResources().getStringArray(R.array.usb_configuration_titles);

        mController = spy(new SelectUsbConfigPreferenceController(mContext, mLifecycle));

        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);

        mController.displayPreference(mScreen);

    }

    @Test

    public void onPreferenceChange_setCharging_shouldEnableCharging() {

        when(mUsbManager.isFunctionEnabled(mValues[0])).thenReturn(true);

        doNothing().when(mController).setCurrentFunction(anyString(), anyBoolean());

        mController.onPreferenceChange(mPreference, mValues[0]);

        verify(mController).setCurrentFunction(mValues[0], false /* usb data unlock */);

    }

    @Test

    public void onPreferenceChange_setMtp_shouldEnableMtp() {

        when(mUsbManager.isFunctionEnabled(mValues[1])).thenReturn(true);

        doNothing().when(mController).setCurrentFunction(anyString(), anyBoolean());

        mController.onPreferenceChange(mPreference, mValues[1]);

        verify(mController).setCurrentFunction(mValues[1], true /* usb data unlock */);

    }

    @Test

    public void updateState_chargingEnabled_shouldSetPreferenceToCharging() {

        when(mUsbManager.isFunctionEnabled(mValues[0])).thenReturn(true);

        mController.updateState(mPreference);

        verify(mPreference).setValue(mValues[0]);

        verify(mPreference).setSummary(mSummaries[0]);

    }

    @Test

    public void updateState_RndisEnabled_shouldEnableRndis() {

        when(mUsbManager.isFunctionEnabled(mValues[3])).thenReturn(true);

        mController.updateState(mPreference);

        verify(mPreference).setValue(mValues[3]);

        verify(mPreference).setSummary(mSummaries[3]);

    }

    @Test

    public void updateState_noValueSet_shouldEnableChargingAsDefault() {

        mController.updateState(mPreference);

        verify(mPreference).setValue(mValues[0]);

        verify(mPreference).setSummary(mSummaries[0]);

    }

    @Test

    public void onDeveloperOptionsSwitchDisabled_shouldDisablePreference() {

        mController.onDeveloperOptionsSwitchDisabled();

        verify(mPreference).setEnabled(false);

    }

    @Test

    public void onDeveloperOptionsSwitchEnabled_shouldEnablePreference() {

        mController.onDeveloperOptionsSwitchEnabled();

        verify(mPreference).setEnabled(true);

    }

    @Test

    public void onCreate_shouldRegisterReceiver() {

        mLifecycle.onCreate(null /* bundle */);

        verify(mContext).registerReceiver(any(), any());

    }

    @Test

    public void onDestroy_shouldUnregisterReceiver() {

        doNothing().when(mContext).unregisterReceiver(any());

        mLifecycle.onDestroy();

        verify(mContext).unregisterReceiver(any());

    }

}