Introduce SelectUsbConfigPreferenceController

- Create new SelectUsbConfigController
 - Create controller inside the DashboardFragment
 - Port logic from DevelopmentSettings into the controller

Bug: 34203528
Test: make RunSettingsRoboTests -j40
Change-Id: I8d6b4eb2e8a90adb7f8bdf4aeec0f5929e8165b2

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -280,7 +280,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         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));

src/com/android/settings/development/SelectUsbConfigPreferenceController.java

@@ -0,0 +1,139 @@
+/*
+ * 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);
+        }
+    }
+
+}

tests/robotests/src/com/android/settings/development/SelectUsbConfigPreferenceControllerTest.java

@@ -0,0 +1,162 @@
+/*
+ * 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());
+    }
+}