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      1 /*
      2  * Copyright 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.development;
     18 
     19 import android.content.Context;
     20 import android.os.SystemProperties;
     21 import android.support.annotation.VisibleForTesting;
     22 import android.support.v14.preference.SwitchPreference;
     23 import android.support.v7.preference.Preference;
     24 
     25 import com.android.settings.core.PreferenceControllerMixin;
     26 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
     27 
     28 public class BluetoothA2dpHwOffloadPreferenceController extends DeveloperOptionsPreferenceController
     29         implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
     30 
     31     private static final String PREFERENCE_KEY = "bluetooth_disable_a2dp_hw_offload";
     32     private final DevelopmentSettingsDashboardFragment mFragment;
     33 
     34     static final String A2DP_OFFLOAD_DISABLED_PROPERTY = "persist.bluetooth.a2dp_offload.disabled";
     35     static final String A2DP_OFFLOAD_SUPPORTED_PROPERTY = "ro.bluetooth.a2dp_offload.supported";
     36 
     37     public BluetoothA2dpHwOffloadPreferenceController(Context context,
     38             DevelopmentSettingsDashboardFragment fragment) {
     39         super(context);
     40         mFragment = fragment;
     41     }
     42 
     43     @Override
     44     public String getPreferenceKey() {
     45         return PREFERENCE_KEY;
     46     }
     47 
     48     @Override
     49     public boolean onPreferenceChange(Preference preference, Object newValue) {
     50         BluetoothA2dpHwOffloadRebootDialog.show(mFragment, this);
     51         return false;
     52     }
     53 
     54     @Override
     55     public void updateState(Preference preference) {
     56         super.updateState(preference);
     57         final boolean offloadSupported =
     58                 SystemProperties.getBoolean(A2DP_OFFLOAD_SUPPORTED_PROPERTY, false);
     59         if (offloadSupported) {
     60             final boolean offloadDisabled =
     61                     SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
     62             ((SwitchPreference) mPreference).setChecked(offloadDisabled);
     63         } else {
     64             mPreference.setEnabled(false);
     65             ((SwitchPreference) mPreference).setChecked(true);
     66         }
     67     }
     68 
     69     @Override
     70     protected void onDeveloperOptionsSwitchDisabled() {
     71         super.onDeveloperOptionsSwitchDisabled();
     72         final boolean offloadSupported =
     73                 SystemProperties.getBoolean(A2DP_OFFLOAD_SUPPORTED_PROPERTY, false);
     74         if (offloadSupported) {
     75             ((SwitchPreference) mPreference).setChecked(false);
     76             SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, "false");
     77         } else {
     78             ((SwitchPreference) mPreference).setChecked(true);
     79             SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, "true");
     80         }
     81     }
     82 
     83     public void onA2dpHwDialogConfirmed() {
     84         final boolean offloadDisabled =
     85                 SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
     86         SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(!offloadDisabled));
     87     }
     88 
     89 }
     90