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