1 /*
2  * Copyright (C) 2020 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.gestures;
18 
19 import android.content.Context;
20 import android.net.Uri;
21 
22 import androidx.preference.Preference;
23 import androidx.preference.PreferenceScreen;
24 
25 import com.android.settings.R;
26 import com.android.settings.core.BasePreferenceController;
27 import com.android.settingslib.core.lifecycle.LifecycleObserver;
28 import com.android.settingslib.core.lifecycle.events.OnStart;
29 import com.android.settingslib.core.lifecycle.events.OnStop;
30 
31 /**
32  * Preference controller for One-handed mode shortcut settings
33  */
34 public class OneHandedEnablePreferenceController extends BasePreferenceController
35         implements OneHandedSettingsUtils.TogglesCallback, LifecycleObserver, OnStart, OnStop {
36 
37     private final OneHandedSettingsUtils mUtils;
38     private Preference mPreference;
39 
OneHandedEnablePreferenceController(Context context, String preferenceKey)40     public OneHandedEnablePreferenceController(Context context, String preferenceKey) {
41         super(context, preferenceKey);
42         mUtils = new OneHandedSettingsUtils(context);
43     }
44 
45     @Override
getAvailabilityStatus()46     public int getAvailabilityStatus() {
47         return OneHandedSettingsUtils.isSupportOneHandedMode() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
48     }
49 
50     @Override
getSummary()51     public CharSequence getSummary() {
52         return mContext.getText(
53                 OneHandedSettingsUtils.isOneHandedModeEnabled(mContext)
54                         ? R.string.gesture_setting_on : R.string.gesture_setting_off);
55     }
56 
57     @Override
displayPreference(PreferenceScreen screen)58     public void displayPreference(PreferenceScreen screen) {
59         super.displayPreference(screen);
60         mPreference = screen.findPreference(getPreferenceKey());
61     }
62 
63     @Override
onStart()64     public void onStart() {
65         mUtils.registerToggleAwareObserver(this);
66     }
67 
68     @Override
onStop()69     public void onStop() {
70         mUtils.unregisterToggleAwareObserver();
71     }
72 
73     @Override
onChange(Uri uri)74     public void onChange(Uri uri) {
75         if (mPreference == null) {
76             return;
77         }
78         if (uri.equals(OneHandedSettingsUtils.ONE_HANDED_MODE_ENABLED_URI)) {
79             refreshSummary(mPreference);
80         }
81     }
82 }
83