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      1 /*
      2  * Copyright (C) 2017 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 package com.android.settings.bluetooth;
     17 
     18 import android.content.Context;
     19 import android.view.View;
     20 
     21 import com.android.internal.annotations.VisibleForTesting;
     22 import com.android.internal.logging.nano.MetricsProto;
     23 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
     24 import com.android.settings.R;
     25 import com.android.settings.core.SubSettingLauncher;
     26 import com.android.settings.location.ScanningSettings;
     27 import com.android.settings.overlay.FeatureFactory;
     28 import com.android.settings.utils.AnnotationSpan;
     29 import com.android.settings.widget.SwitchWidgetController;
     30 import com.android.settingslib.bluetooth.LocalBluetoothAdapter;
     31 import com.android.settingslib.bluetooth.LocalBluetoothManager;
     32 import com.android.settingslib.core.lifecycle.LifecycleObserver;
     33 import com.android.settingslib.core.lifecycle.events.OnStart;
     34 import com.android.settingslib.core.lifecycle.events.OnStop;
     35 import com.android.settingslib.widget.FooterPreference;
     36 
     37 /**
     38  * PreferenceController to update of bluetooth state. All behavior except managing the footer text
     39  * is delegated to the SwitchWidgetController it uses.
     40  */
     41 public class BluetoothSwitchPreferenceController
     42         implements LifecycleObserver, OnStart, OnStop,
     43         SwitchWidgetController.OnSwitchChangeListener, View.OnClickListener {
     44 
     45     @VisibleForTesting
     46     LocalBluetoothAdapter mBluetoothAdapter;
     47 
     48     private LocalBluetoothManager mBluetoothManager;
     49     private BluetoothEnabler mBluetoothEnabler;
     50     private RestrictionUtils mRestrictionUtils;
     51     private SwitchWidgetController mSwitch;
     52     private Context mContext;
     53     private FooterPreference mFooterPreference;
     54 
     55     public BluetoothSwitchPreferenceController(Context context,
     56             SwitchWidgetController switchController,
     57             FooterPreference footerPreference) {
     58         this(context, Utils.getLocalBtManager(context), new RestrictionUtils(), switchController,
     59                 footerPreference);
     60     }
     61 
     62     @VisibleForTesting
     63     public BluetoothSwitchPreferenceController(Context context,
     64             LocalBluetoothManager bluetoothManager, RestrictionUtils restrictionUtils,
     65             SwitchWidgetController switchController, FooterPreference footerPreference) {
     66         mBluetoothManager = bluetoothManager;
     67         mRestrictionUtils = restrictionUtils;
     68         mSwitch = switchController;
     69         mContext = context;
     70         mFooterPreference = footerPreference;
     71 
     72         mSwitch.setupView();
     73         updateText(mSwitch.isChecked());
     74 
     75         if (mBluetoothManager != null) {
     76             mBluetoothAdapter = mBluetoothManager.getBluetoothAdapter();
     77         }
     78         mBluetoothEnabler = new BluetoothEnabler(context,
     79                 switchController,
     80                 FeatureFactory.getFactory(context).getMetricsFeatureProvider(), mBluetoothManager,
     81                 MetricsEvent.ACTION_SETTINGS_MASTER_SWITCH_BLUETOOTH_TOGGLE,
     82                 mRestrictionUtils);
     83         mBluetoothEnabler.setToggleCallback(this);
     84     }
     85 
     86     @Override
     87     public void onStart() {
     88         mBluetoothEnabler.resume(mContext);
     89         if (mSwitch != null) {
     90             updateText(mSwitch.isChecked());
     91         }
     92     }
     93 
     94     @Override
     95     public void onStop() {
     96         mBluetoothEnabler.pause();
     97     }
     98 
     99     @Override
    100     public boolean onSwitchToggled(boolean isChecked) {
    101         updateText(isChecked);
    102         return true;
    103     }
    104 
    105     @Override
    106     public void onClick(View v) {
    107         // send users to scanning settings if they click on the link in the summary text
    108         new SubSettingLauncher(mContext)
    109                 .setDestination(ScanningSettings.class.getName())
    110                 .setSourceMetricsCategory(MetricsProto.MetricsEvent.BLUETOOTH_FRAGMENT)
    111                 .launch();
    112     }
    113 
    114     @VisibleForTesting void updateText(boolean isChecked) {
    115         if (!isChecked
    116                 && Utils.isBluetoothScanningEnabled(mContext)) {
    117             AnnotationSpan.LinkInfo info = new AnnotationSpan.LinkInfo(
    118                     AnnotationSpan.LinkInfo.DEFAULT_ANNOTATION, this);
    119             CharSequence text = AnnotationSpan.linkify(
    120                     mContext.getText(R.string.bluetooth_scanning_on_info_message), info);
    121             mFooterPreference.setTitle(text);
    122         } else {
    123             mFooterPreference.setTitle(R.string.bluetooth_empty_list_bluetooth_off);
    124         }
    125     }
    126 }