RESTRICT AUTOMERGE Implement Spatial Audio and Head Tracking option in bluetooth settings

Implemented the Spatial Audio and Head Tracking options, make these
features could be controlled in bluetooth detail settings.

Bug: 218960300
Test: make -j64 RunSettingsRoboTests
Change-Id: I880cc7a10fc5e2fa5d1052fff5a7b589a4ff60df
(cherry picked from commit bc2f30ca67)

src/com/android/settings/bluetooth/BluetoothDetailsSpatialAudioController.java

@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2022 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.bluetooth;
+
+import android.content.Context;
+import android.media.AudioDeviceAttributes;
+import android.media.AudioDeviceInfo;
+import android.media.AudioManager;
+import android.media.Spatializer;
+import android.text.TextUtils;
+import android.util.Log;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.R;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+/**
+ * The controller of the Spatial audio setting in the bluetooth detail settings.
+ */
+public class BluetoothDetailsSpatialAudioController extends BluetoothDetailsController
+        implements Preference.OnPreferenceClickListener {
+
+    private static final String TAG = "BluetoothSpatialAudioController";
+    private static final String KEY_SPATIAL_AUDIO_GROUP = "spatial_audio_group";
+    private static final String KEY_SPATIAL_AUDIO = "spatial_audio";
+    private static final String KEY_HEAD_TRACKING = "head_tracking";
+
+    private final Spatializer mSpatializer;
+
+    @VisibleForTesting
+    PreferenceCategory mProfilesContainer;
+    @VisibleForTesting
+    AudioDeviceAttributes mAudioDevice;
+
+    public BluetoothDetailsSpatialAudioController(
+            Context context,
+            PreferenceFragmentCompat fragment,
+            CachedBluetoothDevice device,
+            Lifecycle lifecycle) {
+        super(context, fragment, device, lifecycle);
+        AudioManager audioManager = context.getSystemService(AudioManager.class);
+        mSpatializer = audioManager.getSpatializer();
+        mAudioDevice = new AudioDeviceAttributes(
+                AudioDeviceAttributes.ROLE_OUTPUT,
+                AudioDeviceInfo.TYPE_BLUETOOTH_A2DP,
+                mCachedDevice.getAddress());
+
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return mSpatializer.isAvailableForDevice(mAudioDevice) ? true : false;
+    }
+
+    @Override
+    public boolean onPreferenceClick(Preference preference) {
+        SwitchPreference switchPreference = (SwitchPreference) preference;
+        String key = switchPreference.getKey();
+        if (TextUtils.equals(key, KEY_SPATIAL_AUDIO)) {
+            if (switchPreference.isChecked()) {
+                mSpatializer.addCompatibleAudioDevice(mAudioDevice);
+            } else {
+                mSpatializer.removeCompatibleAudioDevice(mAudioDevice);
+            }
+            refresh();
+            return true;
+        } else if (TextUtils.equals(key, KEY_HEAD_TRACKING)) {
+            mSpatializer.setHeadTrackerEnabled(switchPreference.isChecked(), mAudioDevice);
+            return true;
+        } else {
+            Log.w(TAG, "invalid key name.");
+            return false;
+        }
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_SPATIAL_AUDIO_GROUP;
+    }
+
+    @Override
+    protected void init(PreferenceScreen screen) {
+        mProfilesContainer = screen.findPreference(getPreferenceKey());
+        mProfilesContainer.setLayoutResource(R.layout.preference_bluetooth_profile_category);
+        refresh();
+    }
+
+    @Override
+    protected void refresh() {
+        SwitchPreference spatialAudioPref = mProfilesContainer.findPreference(KEY_SPATIAL_AUDIO);
+        if (spatialAudioPref == null) {
+            spatialAudioPref = createSpatialAudioPreference(mProfilesContainer.getContext());
+            mProfilesContainer.addPreference(spatialAudioPref);
+        }
+
+        boolean isSpatialAudioOn = mSpatializer.getCompatibleAudioDevices().contains(mAudioDevice);
+        Log.d(TAG, "refresh() isSpatialAudioOn : " + isSpatialAudioOn);
+        spatialAudioPref.setChecked(isSpatialAudioOn);
+
+        SwitchPreference headTrackingPref = mProfilesContainer.findPreference(KEY_HEAD_TRACKING);
+        if (headTrackingPref == null) {
+            headTrackingPref = createHeadTrackingPreference(mProfilesContainer.getContext());
+            mProfilesContainer.addPreference(headTrackingPref);
+        }
+
+        boolean isHeadTrackingAvailable =
+                isSpatialAudioOn && mSpatializer.hasHeadTracker(mAudioDevice);
+        Log.d(TAG, "refresh() has head tracker : " + mSpatializer.hasHeadTracker(mAudioDevice));
+        headTrackingPref.setVisible(isHeadTrackingAvailable);
+        if (isHeadTrackingAvailable) {
+            headTrackingPref.setChecked(mSpatializer.isHeadTrackerEnabled(mAudioDevice));
+        }
+    }
+
+    @VisibleForTesting
+    SwitchPreference createSpatialAudioPreference(Context context) {
+        SwitchPreference pref = new SwitchPreference(context);
+        pref.setKey(KEY_SPATIAL_AUDIO);
+        pref.setTitle(context.getString(R.string.bluetooth_details_spatial_audio_title));
+        pref.setSummary(context.getString(R.string.bluetooth_details_spatial_audio_summary));
+        pref.setOnPreferenceClickListener(this);
+        return pref;
+    }
+
+    @VisibleForTesting
+    SwitchPreference createHeadTrackingPreference(Context context) {
+        SwitchPreference pref = new SwitchPreference(context);
+        pref.setKey(KEY_HEAD_TRACKING);
+        pref.setTitle(context.getString(R.string.bluetooth_details_head_tracking_title));
+        pref.setSummary(context.getString(R.string.bluetooth_details_head_tracking_summary));
+        pref.setOnPreferenceClickListener(this);
+        return pref;
+    }
+}

src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java

@@ -187,6 +187,8 @@ public class BluetoothDeviceDetailsFragment extends RestrictedDashboardFragment
                     lifecycle));
             controllers.add(new BluetoothDetailsCompanionAppsController(context, this,
                     mCachedDevice, lifecycle));
+            controllers.add(new BluetoothDetailsSpatialAudioController(context, this, mCachedDevice,
+                    lifecycle));
             controllers.add(new BluetoothDetailsProfilesController(context, this, mManager,
                     mCachedDevice, lifecycle));
             controllers.add(new BluetoothDetailsMacAddressController(context, this, mCachedDevice,