Update UI for Wifi Direct settings

- Change the launching preference from using an intent to directly a
fragemnt
- Partially convert WifiP2pSettings to a DashboardFragment
- Add a controller to control each pref category, when they have no
child, hide.
- Add a controller to control device's own AP name.

Change-Id: I23685c4d4a85f80ceab5a576005e693e6f8b7cc4
Fix: 36859626
Test: make RunSettingsRoboTests

tests/robotests/src/com/android/settings/wifi/p2p/P2pCategoryPreferenceControllerTest.java

@@ -0,0 +1,97 @@
+/*
+ * 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.wifi.p2p;
+
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceCategory;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.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.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class P2pCategoryPreferenceControllerTest {
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    @Mock
+    private PreferenceCategory mCategory;
+    private P2pCategoryPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        when(mPreferenceScreen.findPreference(anyString())).thenReturn(mCategory);
+
+        mController = new P2pCategoryPreferenceController(RuntimeEnvironment.application) {
+
+            @Override
+            public String getPreferenceKey() {
+                return "test_key";
+            }
+        };
+        mController.displayPreference(mPreferenceScreen);
+    }
+
+    @Test
+    public void isAlwaysAvailable() {
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+
+    @Test
+    public void removeAllChildren_shouldRemove() {
+        mController.removeAllChildren();
+
+        verify(mCategory).removeAll();
+        verify(mCategory).setVisible(false);
+    }
+
+    @Test
+    public void addChild_shouldAdd() {
+        final Preference pref = new Preference(RuntimeEnvironment.application);
+        mController.addChild(pref);
+
+        verify(mCategory).addPreference(pref);
+        verify(mCategory).setVisible(true);
+    }
+
+    @Test
+    public void shouldToggleEnable() {
+        mController.setEnabled(false);
+
+        verify(mCategory).setEnabled(false);
+
+        mController.setEnabled(true);
+
+        verify(mCategory).setEnabled(true);
+    }
+}

tests/robotests/src/com/android/settings/wifi/p2p/P2pThisDevicePreferenceControllerTest.java

@@ -0,0 +1,82 @@
+/*
+ * 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.wifi.p2p;
+
+
+import android.net.wifi.p2p.WifiP2pDevice;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.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.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.when;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class P2pThisDevicePreferenceControllerTest {
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    private Preference mPreference;
+    private P2pThisDevicePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mPreference = new Preference(RuntimeEnvironment.application);
+        when(mPreferenceScreen.findPreference(anyString())).thenReturn(mPreference);
+
+        mController = new P2pThisDevicePreferenceController(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void isAlwaysAvailable() {
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+    @Test
+    public void updateDeviceName_emptyName_shouldUseIpAddress() {
+        WifiP2pDevice device = new WifiP2pDevice();
+        device.deviceAddress = "address";
+        mController.displayPreference(mPreferenceScreen);
+        mController.updateDeviceName(device);
+
+        assertThat(mPreference.getTitle()).isEqualTo(device.deviceAddress);
+    }
+
+    @Test
+    public void updateDeviceName_hasName_shouldUseName() {
+        WifiP2pDevice device = new WifiP2pDevice();
+        device.deviceAddress = "address";
+        device.deviceName = "name";
+        mController.displayPreference(mPreferenceScreen);
+        mController.updateDeviceName(device);
+
+        assertThat(mPreference.getTitle()).isEqualTo(device.deviceName);
+    }
+}