1 /* 2 * Copyright (C) 2011 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.server.telecom; 18 19 // TODO: Needed for move to system service: import com.android.internal.R; 20 import android.app.Activity; 21 import android.app.PendingIntent; 22 import android.content.BroadcastReceiver; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.IntentFilter; 26 import android.content.SharedPreferences; 27 import android.content.res.Resources; 28 import android.telecom.Connection; 29 import android.telecom.Log; 30 import android.telecom.Response; 31 import android.telephony.PhoneNumberUtils; 32 import android.telephony.SmsManager; 33 import android.telephony.SubscriptionManager; 34 import android.text.Spannable; 35 import android.text.SpannableString; 36 import android.text.TextUtils; 37 import android.widget.Toast; 38 39 import java.util.ArrayList; 40 import java.util.List; 41 42 /** 43 * Helper class to manage the "Respond via Message" feature for incoming calls. 44 */ 45 public class RespondViaSmsManager extends CallsManagerListenerBase { 46 private static final String ACTION_MESSAGE_SENT = "com.android.server.telecom.MESSAGE_SENT"; 47 48 private static final class MessageSentReceiver extends BroadcastReceiver { 49 private final String mContactName; 50 private final int mNumMessageParts; 51 private int mNumMessagesSent = 0; MessageSentReceiver(String contactName, int numMessageParts)52 MessageSentReceiver(String contactName, int numMessageParts) { 53 mContactName = contactName; 54 mNumMessageParts = numMessageParts; 55 } 56 57 @Override onReceive(Context context, Intent intent)58 public void onReceive(Context context, Intent intent) { 59 if (getResultCode() == Activity.RESULT_OK) { 60 mNumMessagesSent++; 61 if (mNumMessagesSent == mNumMessageParts) { 62 showMessageResultToast(mContactName, context, true); 63 context.unregisterReceiver(this); 64 } 65 } else { 66 context.unregisterReceiver(this); 67 showMessageResultToast(mContactName, context, false); 68 Log.w(RespondViaSmsManager.class.getSimpleName(), 69 "Message failed with error %s", getResultCode()); 70 } 71 } 72 } 73 74 private final CallsManager mCallsManager; 75 private final TelecomSystem.SyncRoot mLock; 76 RespondViaSmsManager(CallsManager callsManager, TelecomSystem.SyncRoot lock)77 public RespondViaSmsManager(CallsManager callsManager, TelecomSystem.SyncRoot lock) { 78 mCallsManager = callsManager; 79 mLock = lock; 80 } 81 82 /** 83 * Read the (customizable) canned responses from SharedPreferences, 84 * or from defaults if the user has never actually brought up 85 * the Settings UI. 86 * 87 * The interface of this method is asynchronous since it does disk I/O. 88 * 89 * @param response An object to receive an async reply, which will be called from 90 * the main thread. 91 * @param context The context. 92 */ loadCannedTextMessages(final Response<Void, List<String>> response, final Context context)93 public void loadCannedTextMessages(final Response<Void, List<String>> response, 94 final Context context) { 95 new Thread() { 96 @Override 97 public void run() { 98 Log.d(RespondViaSmsManager.this, "loadCannedResponses() starting"); 99 100 // This function guarantees that QuickResponses will be in our 101 // SharedPreferences with the proper values considering there may be 102 // old QuickResponses in Telephony pre L. 103 QuickResponseUtils.maybeMigrateLegacyQuickResponses(context); 104 105 final SharedPreferences prefs = context.getSharedPreferences( 106 QuickResponseUtils.SHARED_PREFERENCES_NAME, 107 Context.MODE_PRIVATE | Context.MODE_MULTI_PROCESS); 108 final Resources res = context.getResources(); 109 110 final ArrayList<String> textMessages = new ArrayList<>( 111 QuickResponseUtils.NUM_CANNED_RESPONSES); 112 113 // Where the user has changed a quick response back to the same text as the 114 // original text, clear the shared pref. This ensures we always load the resource 115 // in the current active language. 116 QuickResponseUtils.maybeResetQuickResponses(context, prefs); 117 118 // Note the default values here must agree with the corresponding 119 // android:defaultValue attributes in respond_via_sms_settings.xml. 120 textMessages.add(0, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_1, 121 res.getString(R.string.respond_via_sms_canned_response_1))); 122 textMessages.add(1, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_2, 123 res.getString(R.string.respond_via_sms_canned_response_2))); 124 textMessages.add(2, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_3, 125 res.getString(R.string.respond_via_sms_canned_response_3))); 126 textMessages.add(3, prefs.getString(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_4, 127 res.getString(R.string.respond_via_sms_canned_response_4))); 128 129 Log.d(RespondViaSmsManager.this, 130 "loadCannedResponses() completed, found responses: %s", 131 textMessages.toString()); 132 133 synchronized (mLock) { 134 response.onResult(null, textMessages); 135 } 136 } 137 }.start(); 138 } 139 140 @Override onIncomingCallRejected(Call call, boolean rejectWithMessage, String textMessage)141 public void onIncomingCallRejected(Call call, boolean rejectWithMessage, String textMessage) { 142 if (rejectWithMessage 143 && call.getHandle() != null 144 && !call.can(Connection.CAPABILITY_CAN_SEND_RESPONSE_VIA_CONNECTION)) { 145 int subId = mCallsManager.getPhoneAccountRegistrar().getSubscriptionIdForPhoneAccount( 146 call.getTargetPhoneAccount()); 147 rejectCallWithMessage(call.getContext(), call.getHandle().getSchemeSpecificPart(), 148 textMessage, subId, call.getName()); 149 } 150 } 151 showMessageResultToast(final String phoneNumber, final Context context, boolean success)152 private static void showMessageResultToast(final String phoneNumber, 153 final Context context, boolean success) { 154 // ...and show a brief confirmation to the user (since 155 // otherwise it's hard to be sure that anything actually 156 // happened.) 157 final Resources res = context.getResources(); 158 final String formatString = res.getString(success 159 ? R.string.respond_via_sms_confirmation_format 160 : R.string.respond_via_sms_failure_format); 161 final String confirmationMsg = String.format(formatString, phoneNumber); 162 int startingPosition = confirmationMsg.indexOf(phoneNumber); 163 int endingPosition = startingPosition + phoneNumber.length(); 164 165 Spannable styledConfirmationMsg = new SpannableString(confirmationMsg); 166 PhoneNumberUtils.addTtsSpan(styledConfirmationMsg, startingPosition, endingPosition); 167 Toast.makeText(context, styledConfirmationMsg, 168 Toast.LENGTH_LONG).show(); 169 170 // TODO: If the device is locked, this toast won't actually ever 171 // be visible! (That's because we're about to dismiss the call 172 // screen, which means that the device will return to the 173 // keyguard. But toasts aren't visible on top of the keyguard.) 174 // Possible fixes: 175 // (1) Is it possible to allow a specific Toast to be visible 176 // on top of the keyguard? 177 // (2) Artificially delay the dismissCallScreen() call by 3 178 // seconds to allow the toast to be seen? 179 // (3) Don't use a toast at all; instead use a transient state 180 // of the InCallScreen (perhaps via the InCallUiState 181 // progressIndication feature), and have that state be 182 // visible for 3 seconds before calling dismissCallScreen(). 183 } 184 185 /** 186 * Reject the call with the specified message. If message is null this call is ignored. 187 */ rejectCallWithMessage(Context context, String phoneNumber, String textMessage, int subId, String contactName)188 private void rejectCallWithMessage(Context context, String phoneNumber, String textMessage, 189 int subId, String contactName) { 190 if (TextUtils.isEmpty(textMessage)) { 191 Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: empty text message. "); 192 return; 193 } 194 if (!SubscriptionManager.isValidSubscriptionId(subId)) { 195 Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: Invalid SubId: " + 196 subId); 197 return; 198 } 199 200 SmsManager smsManager = SmsManager.getSmsManagerForSubscriptionId(subId); 201 try { 202 ArrayList<String> messageParts = smsManager.divideMessage(textMessage); 203 ArrayList<PendingIntent> sentIntents = new ArrayList<>(messageParts.size()); 204 for (int i = 0; i < messageParts.size(); i++) { 205 Intent intent = new Intent(ACTION_MESSAGE_SENT); 206 PendingIntent pendingIntent = PendingIntent.getBroadcast(context, i, intent, 207 PendingIntent.FLAG_ONE_SHOT); 208 sentIntents.add(pendingIntent); 209 } 210 MessageSentReceiver receiver = new MessageSentReceiver( 211 !TextUtils.isEmpty(contactName) ? contactName : phoneNumber, 212 messageParts.size()); 213 context.registerReceiver(receiver, new IntentFilter(ACTION_MESSAGE_SENT)); 214 smsManager.sendMultipartTextMessage(phoneNumber, null, messageParts, 215 sentIntents/*sentIntent*/, null /*deliveryIntent*/, context.getOpPackageName(), 216 context.getAttributionTag()); 217 } catch (IllegalArgumentException e) { 218 Log.w(RespondViaSmsManager.this, "Couldn't send SMS message: " + 219 e.getMessage()); 220 } 221 } 222 } 223