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1 /*
2  * Copyright (C) 2013 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.nfc;
18 
19 import android.app.settings.SettingsEnums;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.content.pm.PackageManager;
23 import android.content.pm.UserInfo;
24 import android.os.Bundle;
25 import android.os.UserHandle;
26 import android.os.UserManager;
27 import android.view.Menu;
28 import android.view.MenuInflater;
29 import android.view.MenuItem;
30 import android.view.View;
31 import android.view.ViewGroup;
32 
33 import androidx.annotation.VisibleForTesting;
34 import androidx.preference.Preference;
35 import androidx.preference.PreferenceScreen;
36 
37 import com.android.settings.R;
38 import com.android.settings.dashboard.DashboardFragment;
39 import com.android.settings.search.BaseSearchIndexProvider;
40 import com.android.settingslib.search.SearchIndexable;
41 
42 
43 @SearchIndexable
44 public class PaymentSettings extends DashboardFragment {
45     public static final String TAG = "PaymentSettings";
46 
47     private PaymentBackend mPaymentBackend;
48 
49     @Override
getLogTag()50     protected String getLogTag() {
51         return TAG;
52     }
53 
54     @Override
getMetricsCategory()55     public int getMetricsCategory() {
56         return SettingsEnums.NFC_PAYMENT;
57     }
58 
59     @Override
getPreferenceScreenResId()60     protected int getPreferenceScreenResId() {
61         return R.xml.nfc_payment_settings;
62     }
63 
64     @Override
onAttach(Context context)65     public void onAttach(Context context) {
66         super.onAttach(context);
67         mPaymentBackend = new PaymentBackend(getActivity());
68         setHasOptionsMenu(true);
69 
70         use(NfcPaymentPreferenceController.class).setPaymentBackend(mPaymentBackend);
71         use(NfcForegroundPreferenceController.class).setPaymentBackend(mPaymentBackend);
72     }
73 
74     @Override
onViewCreated(View view, Bundle savedInstanceState)75     public void onViewCreated(View view, Bundle savedInstanceState) {
76         super.onViewCreated(view, savedInstanceState);
77         if (isShowEmptyImage(getPreferenceScreen())) {
78             View emptyView = getActivity().getLayoutInflater().inflate(
79                     R.layout.nfc_payment_empty, null, false);
80             ((ViewGroup) view.findViewById(android.R.id.list_container)).addView(emptyView);
81         }
82     }
83 
84     @Override
onResume()85     public void onResume() {
86         super.onResume();
87         mPaymentBackend.onResume();
88     }
89 
90     @Override
onPause()91     public void onPause() {
92         super.onPause();
93         mPaymentBackend.onPause();
94     }
95 
96     @Override
onCreateOptionsMenu(Menu menu, MenuInflater inflater)97     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
98         super.onCreateOptionsMenu(menu, inflater);
99         MenuItem menuItem = menu.add(R.string.nfc_payment_how_it_works);
100         Intent howItWorksIntent = new Intent(getActivity(), HowItWorks.class);
101         menuItem.setIntent(howItWorksIntent);
102         menuItem.setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_NEVER);
103     }
104 
105     @VisibleForTesting
isShowEmptyImage(PreferenceScreen screen)106     boolean isShowEmptyImage(PreferenceScreen screen) {
107         for (int i = 0; i < screen.getPreferenceCount(); i++) {
108             final Preference preference = screen.getPreference(i);
109             if(preference.isVisible()) {
110                 return false;
111             }
112         }
113         return true;
114     }
115 
116     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
117             new BaseSearchIndexProvider(R.xml.nfc_payment_settings) {
118 
119                 @Override
120                 protected boolean isPageSearchEnabled(Context context) {
121                     final UserManager userManager = context.getSystemService(UserManager.class);
122                     final UserInfo myUserInfo = userManager.getUserInfo(UserHandle.myUserId());
123                     if (myUserInfo.isGuest()) {
124                         return false;
125                     }
126                     final PackageManager pm = context.getPackageManager();
127                     return pm.hasSystemFeature(PackageManager.FEATURE_NFC);
128                 }
129             };
130 }