Add ADB enable/disable PreferenceController

Bug: 34203528
Test: EnableAdbControllerTest
Change-Id: I6bff5fccf4a299df3da46a593bc36447945571c3

packages/SettingsLib/src/com/android/settingslib/development/AbstractEnableAdbPreferenceController.java

@@ -0,0 +1,116 @@
+/*
+ * 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.settingslib.development;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.UserManager;
+import android.provider.Settings;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v4.content.LocalBroadcastManager;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+import android.support.v7.preference.TwoStatePreference;
+import android.text.TextUtils;
+
+import com.android.settingslib.core.AbstractPreferenceController;
+
+public abstract class AbstractEnableAdbPreferenceController extends AbstractPreferenceController {
+    private static final String KEY_ENABLE_ADB = "enable_adb";
+    public static final String ACTION_ENABLE_ADB_STATE_CHANGED =
+            "com.android.settingslib.development.AbstractEnableAdbController."
+                    + "ENABLE_ADB_STATE_CHANGED";
+
+    private SwitchPreference mPreference;
+
+    public AbstractEnableAdbPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        if (isAvailable()) {
+            mPreference = (SwitchPreference) screen.findPreference(KEY_ENABLE_ADB);
+        }
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return mContext.getSystemService(UserManager.class).isAdminUser();
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_ENABLE_ADB;
+    }
+
+    private boolean isAdbEnabled() {
+        final ContentResolver cr = mContext.getContentResolver();
+        return Settings.Global.getInt(cr, Settings.Global.ADB_ENABLED, 0) != 0;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        ((TwoStatePreference)preference).setChecked(isAdbEnabled());
+    }
+
+    public void enablePreference(boolean enabled) {
+        if (isAvailable()) {
+            mPreference.setEnabled(enabled);
+        }
+    }
+
+    public void resetPreference() {
+        if (mPreference.isChecked()) {
+            mPreference.setChecked(false);
+            handlePreferenceTreeClick(mPreference);
+        }
+    }
+
+    public boolean haveDebugSettings() {
+        return isAdbEnabled();
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (TextUtils.equals(KEY_ENABLE_ADB, preference.getKey())) {
+            if (!isAdbEnabled()) {
+                showConfirmationDialog((SwitchPreference) preference);
+            } else {
+                writeAdbSetting(false);
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    protected void writeAdbSetting(boolean enabled) {
+        Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_ENABLED, enabled ? 1 : 0);
+        notifyStateChanged();
+    }
+
+    protected void notifyStateChanged() {
+        LocalBroadcastManager.getInstance(mContext)
+                .sendBroadcast(new Intent(ACTION_ENABLE_ADB_STATE_CHANGED));
+    }
+
+    public abstract void showConfirmationDialog(SwitchPreference preference);
+}

packages/SettingsLib/tests/robotests/src/com/android/settingslib/development/EnableAdbPreferenceControllerTest.java

@@ -0,0 +1,158 @@
+/*
+ * 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.settingslib.development;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Answers.RETURNS_DEEP_STUBS;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.UserManager;
+import android.provider.Settings;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settingslib.SettingLibRobolectricTestRunner;
+import com.android.settingslib.TestConfig;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+@RunWith(SettingLibRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class EnableAdbPreferenceControllerTest {
+    @Mock(answer = RETURNS_DEEP_STUBS)
+    private PreferenceScreen mScreen;
+    @Mock
+    private UserManager mUserManager;
+    @Mock
+    private PackageManager mPackageManager;
+
+    private Context mContext;
+    private SwitchPreference mPreference;
+    private ConcreteEnableAdbPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        ShadowApplication shadowContext = ShadowApplication.getInstance();
+        shadowContext.setSystemService(Context.USER_SERVICE, mUserManager);
+        mContext = spy(shadowContext.getApplicationContext());
+        when(mContext.getPackageManager()).thenReturn(mPackageManager);
+        mPreference = new SwitchPreference(mContext);
+        when(mScreen.findPreference(anyString())).thenReturn(mPreference);
+        mController = new ConcreteEnableAdbPreferenceController(mContext);
+        mPreference.setKey(mController.getPreferenceKey());
+    }
+
+    @Test
+    public void displayPreference_isNotAdmin_shouldRemovePreference() {
+        when(mUserManager.isAdminUser()).thenReturn(false);
+        when(mScreen.getPreferenceCount()).thenReturn(1);
+        when(mScreen.getPreference(0)).thenReturn(mPreference);
+
+        mController.displayPreference(mScreen);
+
+        verify(mScreen).removePreference(any(Preference.class));
+    }
+
+    @Test
+    public void displayPreference_isAdmin_shouldNotRemovePreference() {
+        when(mUserManager.isAdminUser()).thenReturn(true);
+
+        mController.displayPreference(mScreen);
+
+        verify(mScreen, never()).removePreference(any(Preference.class));
+    }
+
+
+    @Test
+    public void resetPreference_shouldUncheck() {
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        mController.displayPreference(mScreen);
+        mPreference.setChecked(true);
+
+        mController.resetPreference();
+
+        assertThat(mPreference.isChecked()).isFalse();
+    }
+
+    @Test
+    public void handlePreferenceTreeClick_shouldUpdateSettings() {
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_ENABLED, 1);
+        mPreference.setChecked(true);
+        mController.displayPreference(mScreen);
+
+        mController.handlePreferenceTreeClick(mPreference);
+
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Global.ADB_ENABLED, 0)).isEqualTo(0);
+    }
+
+    @Test
+    public void updateState_settingsOn_shouldCheck() {
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_ENABLED, 1);
+        mPreference.setChecked(false);
+        mController.displayPreference(mScreen);
+
+        mController.updateState(mPreference);
+
+        assertThat(mPreference.isChecked()).isTrue();
+    }
+
+    @Test
+    public void updateState_settingsOff_shouldUncheck() {
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_ENABLED, 0);
+        mPreference.setChecked(true);
+        mController.displayPreference(mScreen);
+
+        mController.updateState(mPreference);
+
+        assertThat(mPreference.isChecked()).isFalse();
+    }
+
+    class ConcreteEnableAdbPreferenceController extends AbstractEnableAdbPreferenceController {
+        public ConcreteEnableAdbPreferenceController(Context context) {
+            super(context);
+        }
+
+        @Override
+        public void showConfirmationDialog(SwitchPreference preference) {
+            // Don't show a dialog, just set setting.
+            writeAdbSetting(true);
+        }
+    }
+}