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      1 /*
      2  * Copyright (C) 2018 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.wifi;
     17 
     18 import android.app.Activity;
     19 import android.app.AlertDialog;
     20 import android.app.Dialog;
     21 import android.content.ActivityNotFoundException;
     22 import android.content.ContentResolver;
     23 import android.content.Context;
     24 import android.content.DialogInterface;
     25 import android.content.Intent;
     26 import android.os.Bundle;
     27 import android.provider.Settings;
     28 import android.support.annotation.VisibleForTesting;
     29 import android.text.TextUtils;
     30 import android.util.Log;
     31 import android.widget.Toast;
     32 
     33 import com.android.internal.logging.nano.MetricsProto;
     34 import com.android.settings.R;
     35 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
     36 import com.android.settingslib.HelpUtils;
     37 
     38 public class WifiScanningRequiredFragment extends InstrumentedDialogFragment implements
     39         DialogInterface.OnClickListener {
     40 
     41     private static final String TAG = "WifiScanReqFrag";
     42 
     43     public static WifiScanningRequiredFragment newInstance() {
     44         WifiScanningRequiredFragment fragment = new WifiScanningRequiredFragment();
     45         return fragment;
     46     }
     47 
     48     @Override
     49     public Dialog onCreateDialog(Bundle savedInstanceState) {
     50         AlertDialog.Builder builder = new AlertDialog.Builder(getContext())
     51                 .setTitle(R.string.wifi_settings_scanning_required_title)
     52                 .setView(R.layout.wifi_settings_scanning_required_view)
     53                 .setPositiveButton(R.string.wifi_settings_scanning_required_turn_on, this)
     54                 .setNegativeButton(R.string.cancel, null);
     55         addButtonIfNeeded(builder);
     56 
     57         return builder.create();
     58     }
     59 
     60     @Override
     61     public int getMetricsCategory() {
     62         return MetricsProto.MetricsEvent.WIFI_SCANNING_NEEDED_DIALOG;
     63     }
     64 
     65     @Override
     66     public void onClick(DialogInterface dialog, int which) {
     67         Context context = getContext();
     68         ContentResolver contentResolver = context.getContentResolver();
     69         switch(which) {
     70             case DialogInterface.BUTTON_POSITIVE:
     71                 Settings.Global.putInt(contentResolver,
     72                         Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 1);
     73                 Toast.makeText(
     74                         context,
     75                         context.getString(R.string.wifi_settings_scanning_required_enabled),
     76                         Toast.LENGTH_SHORT).show();
     77                 getTargetFragment().onActivityResult(
     78                         getTargetRequestCode(),
     79                         Activity.RESULT_OK,
     80                         null);
     81                 break;
     82             case DialogInterface.BUTTON_NEUTRAL:
     83                 openHelpPage();
     84                 break;
     85             case DialogInterface.BUTTON_NEGATIVE:
     86             default:
     87                 // do nothing
     88         }
     89     }
     90 
     91     void addButtonIfNeeded(AlertDialog.Builder builder) {
     92         // Only show "learn more" if there is a help page to show
     93         if (!TextUtils.isEmpty(getContext().getString(R.string.help_uri_wifi_scanning_required))) {
     94             builder.setNeutralButton(R.string.learn_more, this);
     95         }
     96     }
     97 
     98     private void openHelpPage() {
     99         Intent intent = getHelpIntent(getContext());
    100         if (intent != null) {
    101             try {
    102                 startActivity(intent);
    103             } catch (ActivityNotFoundException e) {
    104                 Log.e(TAG, "Activity was not found for intent, " + intent.toString());
    105             }
    106         }
    107     }
    108 
    109     @VisibleForTesting
    110     Intent getHelpIntent(Context context) {
    111         return HelpUtils.getHelpIntent(
    112                     context,
    113                     context.getString(R.string.help_uri_wifi_scanning_required),
    114                     context.getClass().getName());
    115     }
    116 }
    117