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

   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 }