From 3cdd111ed38efc487b72b26339f96aa6a8b2b5aa Mon Sep 17 00:00:00 2001
From: Yiyi Shen <yiyishen@google.com>
Date: Tue, 16 Jan 2024 15:52:09 +0800
Subject: [PATCH] [Audiosharing] Add toggle to improve sharing compatibility.

Test: manual
Bug: 305620450
Bug: 292538935
Change-Id: I8df92323c606cc3375a0f985d46c11caa12c6cfe
---
 res/xml/bluetooth_audio_sharing.xml           |   4 +
 ...ringCompatibilityPreferenceController.java | 173 ++++++++++++++++++
 2 files changed, 177 insertions(+)
 create mode 100644 src/com/android/settings/connecteddevice/audiosharing/AudioSharingCompatibilityPreferenceController.java

diff --git a/res/xml/bluetooth_audio_sharing.xml b/res/xml/bluetooth_audio_sharing.xml
index dc577f6af9d..d3aad228b07 100644
--- a/res/xml/bluetooth_audio_sharing.xml
+++ b/res/xml/bluetooth_audio_sharing.xml
@@ -48,6 +48,10 @@
             android:summary="********"
             android:title="Stream name"
             settings:controller="com.android.settings.connecteddevice.audiosharing.AudioSharingNamePreferenceController" />
+        <SwitchPreferenceCompat
+            android:key="audio_sharing_stream_compatibility"
+            android:title="Improve compatibility"
+            settings:controller="com.android.settings.connecteddevice.audiosharing.AudioSharingCompatibilityPreferenceController" />
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/src/com/android/settings/connecteddevice/audiosharing/AudioSharingCompatibilityPreferenceController.java b/src/com/android/settings/connecteddevice/audiosharing/AudioSharingCompatibilityPreferenceController.java
new file mode 100644
index 00000000000..9dda0a1bbf6
--- /dev/null
+++ b/src/com/android/settings/connecteddevice/audiosharing/AudioSharingCompatibilityPreferenceController.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2024 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.connecteddevice.audiosharing;
+
+import android.bluetooth.BluetoothLeBroadcast;
+import android.bluetooth.BluetoothLeBroadcastMetadata;
+import android.content.Context;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.DefaultLifecycleObserver;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.TwoStatePreference;
+
+import com.android.settings.bluetooth.Utils;
+import com.android.settings.core.TogglePreferenceController;
+import com.android.settingslib.bluetooth.LocalBluetoothLeBroadcast;
+import com.android.settingslib.bluetooth.LocalBluetoothManager;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+public class AudioSharingCompatibilityPreferenceController extends TogglePreferenceController
+        implements DefaultLifecycleObserver {
+
+    private static final String TAG = "AudioSharingCompatibilityPrefController";
+
+    private static final String PREF_KEY = "audio_sharing_stream_compatibility";
+    private static final String SHARING_OFF_SUMMARY =
+            "Helps some devices like hearing aids connect by reducing audio quality";
+    private static final String SHARING_ON_SUMMARY =
+            "Turns off the audio sharing to config the compatibility";
+
+    private final LocalBluetoothManager mBtManager;
+    private final Executor mExecutor;
+    private final LocalBluetoothLeBroadcast mBroadcast;
+    @Nullable private TwoStatePreference mPreference;
+
+    private final BluetoothLeBroadcast.Callback mBroadcastCallback =
+            new BluetoothLeBroadcast.Callback() {
+                @Override
+                public void onBroadcastStarted(int reason, int broadcastId) {
+                    Log.d(
+                            TAG,
+                            "onBroadcastStarted(), reason = "
+                                    + reason
+                                    + ", broadcastId = "
+                                    + broadcastId);
+                    updateEnabled();
+                }
+
+                @Override
+                public void onBroadcastStartFailed(int reason) {}
+
+                @Override
+                public void onBroadcastMetadataChanged(
+                        int broadcastId, @NonNull BluetoothLeBroadcastMetadata metadata) {}
+
+                @Override
+                public void onBroadcastStopped(int reason, int broadcastId) {
+                    Log.d(
+                            TAG,
+                            "onBroadcastStopped(), reason = "
+                                    + reason
+                                    + ", broadcastId = "
+                                    + broadcastId);
+                    updateEnabled();
+                }
+
+                @Override
+                public void onBroadcastStopFailed(int reason) {}
+
+                @Override
+                public void onBroadcastUpdated(int reason, int broadcastId) {}
+
+                @Override
+                public void onBroadcastUpdateFailed(int reason, int broadcastId) {}
+
+                @Override
+                public void onPlaybackStarted(int reason, int broadcastId) {}
+
+                @Override
+                public void onPlaybackStopped(int reason, int broadcastId) {}
+            };
+
+    public AudioSharingCompatibilityPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mBtManager = Utils.getLocalBtManager(context);
+        mBroadcast = mBtManager.getProfileManager().getLeAudioBroadcastProfile();
+        mExecutor = Executors.newSingleThreadExecutor();
+    }
+
+    @Override
+    public void onStart(@NonNull LifecycleOwner owner) {
+        if (mBroadcast != null) {
+            mBroadcast.registerServiceCallBack(mExecutor, mBroadcastCallback);
+        }
+    }
+
+    @Override
+    public void onStop(@NonNull LifecycleOwner owner) {
+        if (mBroadcast != null) {
+            mBroadcast.unregisterServiceCallBack(mBroadcastCallback);
+        }
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AudioSharingUtils.isFeatureEnabled() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+        updateEnabled();
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREF_KEY;
+    }
+
+    @Override
+    public boolean isChecked() {
+        // TODO: return real compatibility config.
+        return false;
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        if (mBroadcast == null) {
+            return false;
+        }
+        // TODO: set real compatibility config.
+        return true;
+    }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return 0;
+    }
+
+    private void updateEnabled() {
+        mContext.getMainExecutor()
+                .execute(
+                        () -> {
+                            if (mPreference != null) {
+                                boolean isBroadcasting =
+                                        AudioSharingUtils.isBroadcasting(mBtManager);
+                                mPreference.setEnabled(!isBroadcasting);
+                                mPreference.setSummary(
+                                        isBroadcasting ? SHARING_ON_SUMMARY : SHARING_OFF_SUMMARY);
+                            }
+                        });
+    }
+}