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.content.ComponentName; 20 import android.content.DialogInterface; 21 import android.content.Intent; 22 import android.nfc.cardemulation.CardEmulation; 23 import android.os.Bundle; 24 import android.util.Log; 25 26 import com.android.internal.app.AlertActivity; 27 import com.android.internal.app.AlertController; 28 import com.android.settings.R; 29 import com.android.settings.nfc.PaymentBackend.PaymentAppInfo; 30 31 import java.util.List; 32 33 public final class PaymentDefaultDialog extends AlertActivity implements 34 DialogInterface.OnClickListener { 35 36 public static final String TAG = "PaymentDefaultDialog"; 37 private static final int PAYMENT_APP_MAX_CAPTION_LENGTH = 40; 38 39 private PaymentBackend mBackend; 40 private ComponentName mNewDefault; 41 42 @Override onCreate(Bundle savedInstanceState)43 protected void onCreate(Bundle savedInstanceState) { 44 super.onCreate(savedInstanceState); 45 mBackend = new PaymentBackend(this); 46 Intent intent = getIntent(); 47 ComponentName component = intent.getParcelableExtra( 48 CardEmulation.EXTRA_SERVICE_COMPONENT); 49 String category = intent.getStringExtra(CardEmulation.EXTRA_CATEGORY); 50 51 setResult(RESULT_CANCELED); 52 if (!buildDialog(component, category)) { 53 finish(); 54 } 55 56 } 57 58 @Override onClick(DialogInterface dialog, int which)59 public void onClick(DialogInterface dialog, int which) { 60 switch (which) { 61 case BUTTON_POSITIVE: 62 mBackend.setDefaultPaymentApp(mNewDefault); 63 setResult(RESULT_OK); 64 break; 65 case BUTTON_NEGATIVE: 66 break; 67 } 68 } 69 buildDialog(ComponentName component, String category)70 private boolean buildDialog(ComponentName component, String category) { 71 if (component == null || category == null) { 72 Log.e(TAG, "Component or category are null"); 73 return false; 74 } 75 76 if (!CardEmulation.CATEGORY_PAYMENT.equals(category)) { 77 Log.e(TAG, "Don't support defaults for category " + category); 78 return false; 79 } 80 81 // Check if passed in service exists 82 PaymentAppInfo requestedPaymentApp = null; 83 PaymentAppInfo defaultPaymentApp = null; 84 85 List<PaymentAppInfo> services = mBackend.getPaymentAppInfos(); 86 for (PaymentAppInfo service : services) { 87 if (component.equals(service.componentName)) { 88 requestedPaymentApp = service; 89 } 90 if (service.isDefault) { 91 defaultPaymentApp = service; 92 } 93 } 94 95 if (requestedPaymentApp == null) { 96 Log.e(TAG, "Component " + component + " is not a registered payment service."); 97 return false; 98 } 99 100 // Get current mode and default component 101 ComponentName defaultComponent = mBackend.getDefaultPaymentApp(); 102 if (defaultComponent != null && defaultComponent.equals(component)) { 103 Log.e(TAG, "Component " + component + " is already default."); 104 return false; 105 } 106 107 mNewDefault = component; 108 // Compose dialog; get 109 final AlertController.AlertParams p = mAlertParams; 110 p.mTitle = getString(R.string.nfc_payment_set_default_label); 111 if (defaultPaymentApp == null) { 112 String formatString = getString(R.string.nfc_payment_set_default); 113 String msg = String.format(formatString, 114 sanitizePaymentAppCaption(requestedPaymentApp.label.toString())); 115 p.mMessage = msg; 116 } else { 117 String formatString = getString(R.string.nfc_payment_set_default_instead_of); 118 String msg = String.format(formatString, 119 sanitizePaymentAppCaption(requestedPaymentApp.label.toString()), 120 sanitizePaymentAppCaption(defaultPaymentApp.label.toString())); 121 p.mMessage = msg; 122 } 123 p.mPositiveButtonText = getString(R.string.yes); 124 p.mNegativeButtonText = getString(R.string.no); 125 p.mPositiveButtonListener = this; 126 p.mNegativeButtonListener = this; 127 setupAlert(); 128 129 return true; 130 } 131 sanitizePaymentAppCaption(String input)132 private String sanitizePaymentAppCaption(String input) { 133 String sanitizedString = input.replace('\n', ' ').replace('\r', ' ').trim(); 134 135 136 if (sanitizedString.length() > PAYMENT_APP_MAX_CAPTION_LENGTH) { 137 return sanitizedString.substring(0, PAYMENT_APP_MAX_CAPTION_LENGTH); 138 } 139 140 return sanitizedString; 141 } 142 143 } 144