Add toggle to show/hide the Per Device Enable LE Audio Toggle in Device details

Bug: 280020008
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioDeviceDetailsPreferenceControllerTest
Change-Id: I559f34f2b0764c4f566fe1e0c1357929e2c88fb6

res/values/strings.xml

@@ -221,14 +221,17 @@
     <!-- UI debug setting: Disable Bluetooth hardware offload [CHAR LIMIT=none] -->
     <string name="bluetooth_disable_hw_offload_dialog_cancel">Cancel</string>
 
-    <!-- Setting Checkbox title for disabling Bluetooth LE Audio feature. [CHAR LIMIT=40] -->
+    <!-- Setting toggle title for disabling Bluetooth LE Audio feature. [CHAR LIMIT=40] -->
     <string name="bluetooth_disable_leaudio">Disable Bluetooth LE audio</string>
-    <!-- Summary of checkbox for disabling Bluetooth LE audio [CHAR LIMIT=none]-->
+    <!-- Summary of toggle for disabling Bluetooth LE audio [CHAR LIMIT=none]-->
     <string name="bluetooth_disable_leaudio_summary">Disables Bluetooth LE audio feature if the device supports LE audio hardware capabilities.</string>
 
-    <!-- Setting Checkbox title for enabling Bluetooth LE Audio Allow List. [CHAR LIMIT=none] -->
+    <!-- Setting toggle title for enabling Bluetooth LE Audio toggle in Device Details. [CHAR LIMIT=40] -->
+    <string name="bluetooth_show_leaudio_device_details">Show LE audio toggle in Device Details</string>
+
+    <!-- Setting toggle title for enabling Bluetooth LE Audio Allow List. [CHAR LIMIT=none] -->
     <string name="bluetooth_enable_leaudio_allow_list">Enable Bluetooth LE audio Allow List</string>
-    <!-- Summary of checkbox for enabling Bluetooth LE audio Allow List [CHAR LIMIT=none]-->
+    <!-- Summary of toggle for enabling Bluetooth LE audio Allow List [CHAR LIMIT=none]-->
     <string name="bluetooth_enable_leaudio_allow_list_summary">Enable Bluetooth LE audio allow list feature.</string>
 
     <!-- Title for Bluetooth device group with media capability group [CHAR LIMIT=none]-->

res/xml/development_settings.xml

@@ -350,6 +350,10 @@
             android:title="@string/bluetooth_disable_leaudio"
             android:summary="@string/bluetooth_disable_leaudio_summary" />
 
+        <SwitchPreference
+            android:key="bluetooth_show_leaudio_device_details"
+            android:title="@string/bluetooth_show_leaudio_device_details"/>
+
         <SwitchPreference
             android:key="bluetooth_enable_leaudio_allow_list"
             android:title="@string/bluetooth_enable_leaudio_allow_list"

src/com/android/settings/core/SettingsUIDeviceConfig.java

@@ -42,4 +42,9 @@ public class SettingsUIDeviceConfig {
      * {@code true} whether or not event_log for generic actions is enabled. Default is true.
      */
     public static final String GENERIC_EVENT_LOGGING_ENABLED = "event_logging_enabled";
+    /**
+     * {@code true} whether to show LE Audio toggle in device detail page. Default is false.
+     */
+    public static final String BT_LE_AUDIO_DEVICE_DETAIL_ENABLED =
+            "bt_le_audio_device_detail_enabled";
 }

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

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2023 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.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothManager;
+import android.bluetooth.BluetoothStatusCodes;
+import android.content.Context;
+import android.provider.DeviceConfig;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.core.SettingsUIDeviceConfig;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference controller to control whether display Bluetooth LE audio toggle in device detail
+ * settings page or not.
+ */
+public class BluetoothLeAudioDeviceDetailsPreferenceController
+        extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
+
+    private static final String PREFERENCE_KEY = "bluetooth_show_leaudio_device_details";
+    static int sLeAudioSupportedStateCache = BluetoothStatusCodes.ERROR_UNKNOWN;
+
+    @VisibleForTesting
+    BluetoothAdapter mBluetoothAdapter;
+
+    public BluetoothLeAudioDeviceDetailsPreferenceController(Context context) {
+        super(context);
+        mBluetoothAdapter = context.getSystemService(BluetoothManager.class).getAdapter();
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREFERENCE_KEY;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (sLeAudioSupportedStateCache == BluetoothStatusCodes.ERROR_UNKNOWN
+                && mBluetoothAdapter != null) {
+            int isLeAudioSupported = mBluetoothAdapter.isLeAudioSupported();
+            if (isLeAudioSupported != BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED) {
+                sLeAudioSupportedStateCache = isLeAudioSupported;
+            }
+        }
+
+        // Display the option only if LE Audio is supported
+        return (sLeAudioSupportedStateCache == BluetoothStatusCodes.FEATURE_SUPPORTED);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        DeviceConfig.setProperty(
+                DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED,
+                isEnabled ? "true" : "false", false);
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        if (!isAvailable()) {
+            return;
+        }
+
+        final boolean leAudioDeviceDetailEnabled = DeviceConfig.getBoolean(
+                DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, false);
+
+        ((SwitchPreference) mPreference).setChecked(leAudioDeviceDetailEnabled);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        // Reset the toggle to null when the developer option is disabled
+        DeviceConfig.setProperty(
+                DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, "null", false);
+    }
+}

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

@@ -660,6 +660,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new BluetoothAvrcpVersionPreferenceController(context));
         controllers.add(new BluetoothMapVersionPreferenceController(context));
         controllers.add(new BluetoothLeAudioPreferenceController(context, fragment));
+        controllers.add(new BluetoothLeAudioDeviceDetailsPreferenceController(context));
         controllers.add(new BluetoothLeAudioAllowListPreferenceController(context, fragment));
         controllers.add(new BluetoothA2dpHwOffloadPreferenceController(context, fragment));
         controllers.add(new BluetoothLeAudioHwOffloadPreferenceController(context, fragment));

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

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2023 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 com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothStatusCodes;
+import android.content.Context;
+import android.provider.DeviceConfig;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.SettingsUIDeviceConfig;
+import com.android.settings.testutils.shadow.ShadowDeviceConfig;
+
+import org.junit.After;
+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;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = {ShadowDeviceConfig.class})
+public class BluetoothLeAudioDeviceDetailsPreferenceControllerTest {
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    @Mock
+    private BluetoothAdapter mBluetoothAdapter;
+    @Mock
+    private SwitchPreference mPreference;
+
+    private Context mContext;
+    private BluetoothLeAudioDeviceDetailsPreferenceController mController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mController = spy(new BluetoothLeAudioDeviceDetailsPreferenceController(mContext));
+        when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
+            .thenReturn(mPreference);
+        mController.mBluetoothAdapter = mBluetoothAdapter;
+        mController.displayPreference(mPreferenceScreen);
+    }
+
+    @After
+    public void tearDown() {
+        ShadowDeviceConfig.reset();
+    }
+
+    @Test
+    public void onPreferenceChanged_settingEnabled_shouldTurnOnLeAudioDeviceDetailSetting() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.FEATURE_SUPPORTED;
+        mController.onPreferenceChange(mPreference, true /* new value */);
+        final boolean isEnabled = DeviceConfig.getBoolean(
+                DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, false);
+
+        assertThat(isEnabled).isTrue();
+    }
+
+    @Test
+    public void onPreferenceChanged_settingDisabled_shouldTurnOffLeAudioDeviceDetailSetting() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.FEATURE_SUPPORTED;
+        mController.onPreferenceChange(mPreference, false /* new value */);
+        final boolean isEnabled = DeviceConfig.getBoolean(
+                DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, false);
+
+        assertThat(isEnabled).isFalse();
+    }
+
+    @Test
+    public void updateState_settingEnabled_preferenceShouldBeChecked() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.FEATURE_SUPPORTED;
+        DeviceConfig.setProperty(DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, "true", false);
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(true);
+    }
+
+    @Test
+    public void updateState_settingDisabled_preferenceShouldNotBeChecked() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.FEATURE_SUPPORTED;
+        DeviceConfig.setProperty(DeviceConfig.NAMESPACE_SETTINGS_UI,
+                SettingsUIDeviceConfig.BT_LE_AUDIO_DEVICE_DETAIL_ENABLED, "false", false);
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    public void isAvailable_leAudioSupported() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.ERROR_UNKNOWN;
+        when(mBluetoothAdapter.isLeAudioSupported())
+                .thenReturn(BluetoothStatusCodes.FEATURE_SUPPORTED);
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+    @Test
+    public void isAvailable_leAudioNotSupported() {
+        mController.sLeAudioSupportedStateCache = BluetoothStatusCodes.ERROR_UNKNOWN;
+        when(mBluetoothAdapter.isLeAudioSupported())
+                .thenReturn(BluetoothStatusCodes.FEATURE_NOT_SUPPORTED);
+        assertThat(mController.isAvailable()).isFalse();
+    }
+}