Merge "Add developer option for bluetooth Gabeldorche feature"
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index ac2cce7..af10957 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -283,6 +283,11 @@
             android:summary="@string/bluetooth_disable_absolute_volume_summary" />
 
         <SwitchPreference
+            android:key="bluetooth_gabeldorsche_enable"
+            android:title="@string/bluetooth_enable_gabeldorsche"
+            android:summary="@string/bluetooth_enable_gabeldorsche_summary" />
+
+        <SwitchPreference
             android:key="bluetooth_disable_a2dp_hw_offload"
             android:title="@string/bluetooth_disable_a2dp_hw_offload" />
 
diff --git a/src/com/android/settings/development/BluetoothGabeldorschePreferenceController.java b/src/com/android/settings/development/BluetoothGabeldorschePreferenceController.java
new file mode 100644
index 0000000..48a3e95
--- /dev/null
+++ b/src/com/android/settings/development/BluetoothGabeldorschePreferenceController.java
@@ -0,0 +1,72 @@
+/*
+ * 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.development;
+
+import android.content.Context;
+import android.os.SystemProperties;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference controller for Bluetooth Gabeldorche feature
+ */
+public class BluetoothGabeldorschePreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
+        PreferenceControllerMixin {
+
+    private static final String BLUETOOTH_GABELDORSCHE_KEY =
+            "bluetooth_gabeldorsche_enable";
+    @VisibleForTesting
+    static final String BLUETOOTH_GABELDORSCHE_PROPERTY =
+            "bluetooth.gd.enabled";
+
+    public BluetoothGabeldorschePreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return BLUETOOTH_GABELDORSCHE_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        SystemProperties.set(BLUETOOTH_GABELDORSCHE_PROPERTY,
+                isEnabled ? "true" : "false");
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final boolean isEnabled = SystemProperties.getBoolean(
+                BLUETOOTH_GABELDORSCHE_PROPERTY, false /* default */);
+        ((SwitchPreference) mPreference).setChecked(isEnabled);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        SystemProperties.set(BLUETOOTH_GABELDORSCHE_PROPERTY, "false");
+        ((SwitchPreference) mPreference).setChecked(false);
+    }
+}
diff --git a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
index dd9dd2a..9387d52 100644
--- a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
+++ b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
@@ -463,6 +463,7 @@
         controllers.add(new TetheringHardwareAccelPreferenceController(context));
         controllers.add(new BluetoothDeviceNoNamePreferenceController(context));
         controllers.add(new BluetoothAbsoluteVolumePreferenceController(context));
+        controllers.add(new BluetoothGabeldorschePreferenceController(context));
         controllers.add(new BluetoothAvrcpVersionPreferenceController(context));
         controllers.add(new BluetoothA2dpHwOffloadPreferenceController(context, fragment));
         controllers.add(new BluetoothMaxConnectedAudioDevicesPreferenceController(context));