1 /* 2 * Copyright (C) 2008 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.calendar.alerts; 18 19 import android.app.Notification; 20 import android.app.NotificationManager; 21 import android.app.Service; 22 import android.content.ContentResolver; 23 import android.content.ContentUris; 24 import android.content.ContentValues; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.content.SharedPreferences; 28 import android.database.Cursor; 29 import android.net.Uri; 30 import android.os.Bundle; 31 import android.os.Handler; 32 import android.os.HandlerThread; 33 import android.os.IBinder; 34 import android.os.Looper; 35 import android.os.Message; 36 import android.os.Process; 37 import android.provider.CalendarContract; 38 import android.provider.CalendarContract.Attendees; 39 import android.provider.CalendarContract.CalendarAlerts; 40 import android.text.TextUtils; 41 import android.text.format.DateUtils; 42 import android.text.format.Time; 43 import android.util.Log; 44 45 import com.android.calendar.GeneralPreferences; 46 import com.android.calendar.OtherPreferences; 47 import com.android.calendar.R; 48 import com.android.calendar.Utils; 49 50 import java.util.ArrayList; 51 import java.util.HashMap; 52 import java.util.List; 53 import java.util.TimeZone; 54 55 /** 56 * This service is used to handle calendar event reminders. 57 */ 58 public class AlertService extends Service { 59 static final boolean DEBUG = true; 60 private static final String TAG = "AlertService"; 61 62 private volatile Looper mServiceLooper; 63 private volatile ServiceHandler mServiceHandler; 64 65 static final String[] ALERT_PROJECTION = new String[] { 66 CalendarAlerts._ID, // 0 67 CalendarAlerts.EVENT_ID, // 1 68 CalendarAlerts.STATE, // 2 69 CalendarAlerts.TITLE, // 3 70 CalendarAlerts.EVENT_LOCATION, // 4 71 CalendarAlerts.SELF_ATTENDEE_STATUS, // 5 72 CalendarAlerts.ALL_DAY, // 6 73 CalendarAlerts.ALARM_TIME, // 7 74 CalendarAlerts.MINUTES, // 8 75 CalendarAlerts.BEGIN, // 9 76 CalendarAlerts.END, // 10 77 CalendarAlerts.DESCRIPTION, // 11 78 }; 79 80 private static final int ALERT_INDEX_ID = 0; 81 private static final int ALERT_INDEX_EVENT_ID = 1; 82 private static final int ALERT_INDEX_STATE = 2; 83 private static final int ALERT_INDEX_TITLE = 3; 84 private static final int ALERT_INDEX_EVENT_LOCATION = 4; 85 private static final int ALERT_INDEX_SELF_ATTENDEE_STATUS = 5; 86 private static final int ALERT_INDEX_ALL_DAY = 6; 87 private static final int ALERT_INDEX_ALARM_TIME = 7; 88 private static final int ALERT_INDEX_MINUTES = 8; 89 private static final int ALERT_INDEX_BEGIN = 9; 90 private static final int ALERT_INDEX_END = 10; 91 private static final int ALERT_INDEX_DESCRIPTION = 11; 92 93 private static final String ACTIVE_ALERTS_SELECTION = "(" + CalendarAlerts.STATE + "=? OR " 94 + CalendarAlerts.STATE + "=?) AND " + CalendarAlerts.ALARM_TIME + "<="; 95 96 private static final String[] ACTIVE_ALERTS_SELECTION_ARGS = new String[] { 97 Integer.toString(CalendarAlerts.STATE_FIRED), 98 Integer.toString(CalendarAlerts.STATE_SCHEDULED) 99 }; 100 101 private static final String ACTIVE_ALERTS_SORT = "begin DESC, end DESC"; 102 103 private static final String DISMISS_OLD_SELECTION = CalendarAlerts.END + "<? AND " 104 + CalendarAlerts.STATE + "=?"; 105 106 private static final int MINUTE_MS = 60 * 1000; 107 108 // The grace period before changing a notification's priority bucket. 109 private static final int MIN_DEPRIORITIZE_GRACE_PERIOD_MS = 15 * MINUTE_MS; 110 111 // Hard limit to the number of notifications displayed. 112 public static final int MAX_NOTIFICATIONS = 20; 113 114 // Shared prefs key for storing whether the EVENT_REMINDER event from the provider 115 // was ever received. Some OEMs modified this provider broadcast, so we had to 116 // do the alarm scheduling here in the app, for the unbundled app's reminders to work. 117 // If the EVENT_REMINDER event was ever received, we know we can skip our secondary 118 // alarm scheduling. 119 private static final String PROVIDER_REMINDER_PREF_KEY = 120 "preference_received_provider_reminder_broadcast"; 121 private static Boolean sReceivedProviderReminderBroadcast = null; 122 123 // Added wrapper for testing 124 public static class NotificationWrapper { 125 Notification mNotification; 126 long mEventId; 127 long mBegin; 128 long mEnd; 129 ArrayList<NotificationWrapper> mNw; 130 131 public NotificationWrapper(Notification n, int notificationId, long eventId, 132 long startMillis, long endMillis, boolean doPopup) { 133 mNotification = n; 134 mEventId = eventId; 135 mBegin = startMillis; 136 mEnd = endMillis; 137 138 // popup? 139 // notification id? 140 } 141 142 public NotificationWrapper(Notification n) { 143 mNotification = n; 144 } 145 146 public void add(NotificationWrapper nw) { 147 if (mNw == null) { 148 mNw = new ArrayList<NotificationWrapper>(); 149 } 150 mNw.add(nw); 151 } 152 } 153 154 // Added wrapper for testing 155 public static class NotificationMgrWrapper extends NotificationMgr { 156 NotificationManager mNm; 157 158 public NotificationMgrWrapper(NotificationManager nm) { 159 mNm = nm; 160 } 161 162 @Override 163 public void cancel(int id) { 164 mNm.cancel(id); 165 } 166 167 @Override 168 public void notify(int id, NotificationWrapper nw) { 169 mNm.notify(id, nw.mNotification); 170 } 171 } 172 173 void processMessage(Message msg) { 174 Bundle bundle = (Bundle) msg.obj; 175 176 // On reboot, update the notification bar with the contents of the 177 // CalendarAlerts table. 178 String action = bundle.getString("action"); 179 if (DEBUG) { 180 Log.d(TAG, bundle.getLong(android.provider.CalendarContract.CalendarAlerts.ALARM_TIME) 181 + " Action = " + action); 182 } 183 184 // Some OEMs had changed the provider's EVENT_REMINDER broadcast to their own event, 185 // which broke our unbundled app's reminders. So we added backup alarm scheduling to the 186 // app, but we know we can turn it off if we ever receive the EVENT_REMINDER broadcast. 187 boolean providerReminder = action.equals( 188 android.provider.CalendarContract.ACTION_EVENT_REMINDER); 189 if (providerReminder) { 190 if (sReceivedProviderReminderBroadcast == null) { 191 sReceivedProviderReminderBroadcast = Utils.getSharedPreference(this, 192 PROVIDER_REMINDER_PREF_KEY, false); 193 } 194 195 if (!sReceivedProviderReminderBroadcast) { 196 sReceivedProviderReminderBroadcast = true; 197 Log.d(TAG, "Setting key " + PROVIDER_REMINDER_PREF_KEY + " to: true"); 198 Utils.setSharedPreference(this, PROVIDER_REMINDER_PREF_KEY, true); 199 } 200 } 201 202 if (providerReminder || 203 action.equals(Intent.ACTION_PROVIDER_CHANGED) || 204 action.equals(android.provider.CalendarContract.ACTION_EVENT_REMINDER) || 205 action.equals(AlertReceiver.EVENT_REMINDER_APP_ACTION) || 206 action.equals(Intent.ACTION_LOCALE_CHANGED)) { 207 208 // b/7652098: Add a delay after the provider-changed event before refreshing 209 // notifications to help issue with the unbundled app installed on HTC having 210 // stale notifications. 211 if (action.equals(Intent.ACTION_PROVIDER_CHANGED)) { 212 try { 213 Thread.sleep(5000); 214 } catch (Exception e) { 215 // Ignore. 216 } 217 } 218 219 updateAlertNotification(this); 220 } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { 221 // The provider usually initiates this setting up of alarms on startup, 222 // but there was a bug (b/7221716) where a race condition caused this step to be 223 // skipped, resulting in missed alarms. This is a stopgap to minimize this bug 224 // for devices that don't have the provider fix, by initiating this a 2nd time here. 225 // However, it would still theoretically be possible to hit the race condition 226 // the 2nd time and still miss alarms. 227 // 228 // TODO: Remove this when the provider fix is rolled out everywhere. 229 Intent intent = new Intent(); 230 intent.setClass(this, InitAlarmsService.class); 231 startService(intent); 232 } else if (action.equals(Intent.ACTION_TIME_CHANGED)) { 233 doTimeChanged(); 234 } else if (action.equals(AlertReceiver.ACTION_DISMISS_OLD_REMINDERS)) { 235 dismissOldAlerts(this); 236 } else { 237 Log.w(TAG, "Invalid action: " + action); 238 } 239 240 // Schedule the alarm for the next upcoming reminder, if not done by the provider. 241 if (sReceivedProviderReminderBroadcast == null || !sReceivedProviderReminderBroadcast) { 242 Log.d(TAG, "Scheduling next alarm with AlarmScheduler. " 243 + "sEventReminderReceived: " + sReceivedProviderReminderBroadcast); 244 AlarmScheduler.scheduleNextAlarm(this); 245 } 246 } 247 248 static void dismissOldAlerts(Context context) { 249 ContentResolver cr = context.getContentResolver(); 250 final long currentTime = System.currentTimeMillis(); 251 ContentValues vals = new ContentValues(); 252 vals.put(CalendarAlerts.STATE, CalendarAlerts.STATE_DISMISSED); 253 cr.update(CalendarAlerts.CONTENT_URI, vals, DISMISS_OLD_SELECTION, new String[] { 254 Long.toString(currentTime), Integer.toString(CalendarAlerts.STATE_SCHEDULED) 255 }); 256 } 257 258 static boolean updateAlertNotification(Context context) { 259 ContentResolver cr = context.getContentResolver(); 260 NotificationMgr nm = new NotificationMgrWrapper( 261 (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE)); 262 final long currentTime = System.currentTimeMillis(); 263 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 264 265 if (DEBUG) { 266 Log.d(TAG, "Beginning updateAlertNotification"); 267 } 268 269 if (!prefs.getBoolean(GeneralPreferences.KEY_ALERTS, true)) { 270 if (DEBUG) { 271 Log.d(TAG, "alert preference is OFF"); 272 } 273 274 // If we shouldn't be showing notifications cancel any existing ones 275 // and return. 276 nm.cancelAll(); 277 return true; 278 } 279 280 Cursor alertCursor = cr.query(CalendarAlerts.CONTENT_URI, ALERT_PROJECTION, 281 (ACTIVE_ALERTS_SELECTION + currentTime), ACTIVE_ALERTS_SELECTION_ARGS, 282 ACTIVE_ALERTS_SORT); 283 284 if (alertCursor == null || alertCursor.getCount() == 0) { 285 if (alertCursor != null) { 286 alertCursor.close(); 287 } 288 289 if (DEBUG) Log.d(TAG, "No fired or scheduled alerts"); 290 nm.cancelAll(); 291 return false; 292 } 293 294 return generateAlerts(context, nm, AlertUtils.createAlarmManager(context), prefs, 295 alertCursor, currentTime, MAX_NOTIFICATIONS); 296 } 297 298 public static boolean generateAlerts(Context context, NotificationMgr nm, 299 AlarmManagerInterface alarmMgr, SharedPreferences prefs, Cursor alertCursor, 300 final long currentTime, final int maxNotifications) { 301 if (DEBUG) { 302 Log.d(TAG, "alertCursor count:" + alertCursor.getCount()); 303 } 304 305 // Process the query results and bucketize events. 306 ArrayList<NotificationInfo> highPriorityEvents = new ArrayList<NotificationInfo>(); 307 ArrayList<NotificationInfo> mediumPriorityEvents = new ArrayList<NotificationInfo>(); 308 ArrayList<NotificationInfo> lowPriorityEvents = new ArrayList<NotificationInfo>(); 309 int numFired = processQuery(alertCursor, context, currentTime, highPriorityEvents, 310 mediumPriorityEvents, lowPriorityEvents); 311 312 if (highPriorityEvents.size() + mediumPriorityEvents.size() 313 + lowPriorityEvents.size() == 0) { 314 nm.cancelAll(); 315 return true; 316 } 317 318 long nextRefreshTime = Long.MAX_VALUE; 319 int currentNotificationId = 1; 320 NotificationPrefs notificationPrefs = new NotificationPrefs(context, prefs, 321 (numFired == 0)); 322 323 // If there are more high/medium priority events than we can show, bump some to 324 // the low priority digest. 325 redistributeBuckets(highPriorityEvents, mediumPriorityEvents, lowPriorityEvents, 326 maxNotifications); 327 328 // Post the individual higher priority events (future and recently started 329 // concurrent events). Order these so that earlier start times appear higher in 330 // the notification list. 331 for (int i = 0; i < highPriorityEvents.size(); i++) { 332 NotificationInfo info = highPriorityEvents.get(i); 333 String summaryText = AlertUtils.formatTimeLocation(context, info.startMillis, 334 info.allDay, info.location); 335 postNotification(info, summaryText, context, true, notificationPrefs, nm, 336 currentNotificationId++); 337 338 // Keep concurrent events high priority (to appear higher in the notification list) 339 // until 15 minutes into the event. 340 nextRefreshTime = Math.min(nextRefreshTime, getNextRefreshTime(info, currentTime)); 341 } 342 343 // Post the medium priority events (concurrent events that started a while ago). 344 // Order these so more recent start times appear higher in the notification list. 345 // 346 // TODO: Post these with the same notification priority level as the higher priority 347 // events, so that all notifications will be co-located together. 348 for (int i = mediumPriorityEvents.size() - 1; i >= 0; i--) { 349 NotificationInfo info = mediumPriorityEvents.get(i); 350 // TODO: Change to a relative time description like: "Started 40 minutes ago". 351 // This requires constant refreshing to the message as time goes. 352 String summaryText = AlertUtils.formatTimeLocation(context, info.startMillis, 353 info.allDay, info.location); 354 postNotification(info, summaryText, context, false, notificationPrefs, nm, 355 currentNotificationId++); 356 357 // Refresh when concurrent event ends so it will drop into the expired digest. 358 nextRefreshTime = Math.min(nextRefreshTime, getNextRefreshTime(info, currentTime)); 359 } 360 361 // Post the low priority events as 1 combined notification. 362 int numLowPriority = lowPriorityEvents.size(); 363 if (numLowPriority > 0) { 364 String expiredDigestTitle = getDigestTitle(lowPriorityEvents); 365 NotificationWrapper notification; 366 if (numLowPriority == 1) { 367 // If only 1 expired event, display an "old-style" basic alert. 368 NotificationInfo info = lowPriorityEvents.get(0); 369 String summaryText = AlertUtils.formatTimeLocation(context, info.startMillis, 370 info.allDay, info.location); 371 notification = AlertReceiver.makeBasicNotification(context, info.eventName, 372 summaryText, info.startMillis, info.endMillis, info.eventId, 373 AlertUtils.EXPIRED_GROUP_NOTIFICATION_ID, false, 374 Notification.PRIORITY_MIN); 375 } else { 376 // Multiple expired events are listed in a digest. 377 notification = AlertReceiver.makeDigestNotification(context, 378 lowPriorityEvents, expiredDigestTitle, false); 379 } 380 381 // Add options for a quiet update. 382 addNotificationOptions(notification, true, expiredDigestTitle, 383 notificationPrefs.getDefaultVibrate(), 384 notificationPrefs.getRingtoneAndSilence(), 385 false); /* Do not show the LED for the expired events. */ 386 387 if (DEBUG) { 388 Log.d(TAG, "Quietly posting digest alarm notification, numEvents:" + numLowPriority 389 + ", notificationId:" + AlertUtils.EXPIRED_GROUP_NOTIFICATION_ID); 390 } 391 392 // Post the new notification for the group. 393 nm.notify(AlertUtils.EXPIRED_GROUP_NOTIFICATION_ID, notification); 394 } else { 395 nm.cancel(AlertUtils.EXPIRED_GROUP_NOTIFICATION_ID); 396 if (DEBUG) { 397 Log.d(TAG, "No low priority events, canceling the digest notification."); 398 } 399 } 400 401 // Remove the notifications that are hanging around from the previous refresh. 402 if (currentNotificationId <= maxNotifications) { 403 nm.cancelAllBetween(currentNotificationId, maxNotifications); 404 if (DEBUG) { 405 Log.d(TAG, "Canceling leftover notification IDs " + currentNotificationId + "-" 406 + maxNotifications); 407 } 408 } 409 410 // Schedule the next silent refresh time so notifications will change 411 // buckets (eg. drop into expired digest, etc). 412 if (nextRefreshTime < Long.MAX_VALUE && nextRefreshTime > currentTime) { 413 AlertUtils.scheduleNextNotificationRefresh(context, alarmMgr, nextRefreshTime); 414 if (DEBUG) { 415 long minutesBeforeRefresh = (nextRefreshTime - currentTime) / MINUTE_MS; 416 Time time = new Time(); 417 time.set(nextRefreshTime); 418 String msg = String.format("Scheduling next notification refresh in %d min at: " 419 + "%d:%02d", minutesBeforeRefresh, time.hour, time.minute); 420 Log.d(TAG, msg); 421 } 422 } else if (nextRefreshTime < currentTime) { 423 Log.e(TAG, "Illegal state: next notification refresh time found to be in the past."); 424 } 425 426 // Flushes old fired alerts from internal storage, if needed. 427 AlertUtils.flushOldAlertsFromInternalStorage(context); 428 429 return true; 430 } 431 432 /** 433 * Redistributes events in the priority lists based on the max # of notifications we 434 * can show. 435 */ 436 static void redistributeBuckets(ArrayList<NotificationInfo> highPriorityEvents, 437 ArrayList<NotificationInfo> mediumPriorityEvents, 438 ArrayList<NotificationInfo> lowPriorityEvents, int maxNotifications) { 439 440 // If too many high priority alerts, shift the remaining high priority and all the 441 // medium priority ones to the low priority bucket. Note that order is important 442 // here; these lists are sorted by descending start time. Maintain that ordering 443 // so posted notifications are in the expected order. 444 if (highPriorityEvents.size() > maxNotifications) { 445 // Move mid-priority to the digest. 446 lowPriorityEvents.addAll(0, mediumPriorityEvents); 447 448 // Move the rest of the high priority ones (latest ones) to the digest. 449 List<NotificationInfo> itemsToMoveSublist = highPriorityEvents.subList( 450 0, highPriorityEvents.size() - maxNotifications); 451 // TODO: What order for high priority in the digest? 452 lowPriorityEvents.addAll(0, itemsToMoveSublist); 453 if (DEBUG) { 454 logEventIdsBumped(mediumPriorityEvents, itemsToMoveSublist); 455 } 456 mediumPriorityEvents.clear(); 457 // Clearing the sublist view removes the items from the highPriorityEvents list. 458 itemsToMoveSublist.clear(); 459 } 460 461 // Bump the medium priority events if necessary. 462 if (mediumPriorityEvents.size() + highPriorityEvents.size() > maxNotifications) { 463 int spaceRemaining = maxNotifications - highPriorityEvents.size(); 464 465 // Reached our max, move the rest to the digest. Since these are concurrent 466 // events, we move the ones with the earlier start time first since they are 467 // further in the past and less important. 468 List<NotificationInfo> itemsToMoveSublist = mediumPriorityEvents.subList( 469 spaceRemaining, mediumPriorityEvents.size()); 470 lowPriorityEvents.addAll(0, itemsToMoveSublist); 471 if (DEBUG) { 472 logEventIdsBumped(itemsToMoveSublist, null); 473 } 474 475 // Clearing the sublist view removes the items from the mediumPriorityEvents list. 476 itemsToMoveSublist.clear(); 477 } 478 } 479 480 private static void logEventIdsBumped(List<NotificationInfo> list1, 481 List<NotificationInfo> list2) { 482 StringBuilder ids = new StringBuilder(); 483 if (list1 != null) { 484 for (NotificationInfo info : list1) { 485 ids.append(info.eventId); 486 ids.append(","); 487 } 488 } 489 if (list2 != null) { 490 for (NotificationInfo info : list2) { 491 ids.append(info.eventId); 492 ids.append(","); 493 } 494 } 495 if (ids.length() > 0 && ids.charAt(ids.length() - 1) == ',') { 496 ids.setLength(ids.length() - 1); 497 } 498 if (ids.length() > 0) { 499 Log.d(TAG, "Reached max postings, bumping event IDs {" + ids.toString() 500 + "} to digest."); 501 } 502 } 503 504 private static long getNextRefreshTime(NotificationInfo info, long currentTime) { 505 long startAdjustedForAllDay = info.startMillis; 506 long endAdjustedForAllDay = info.endMillis; 507 if (info.allDay) { 508 Time t = new Time(); 509 startAdjustedForAllDay = Utils.convertAlldayUtcToLocal(t, info.startMillis, 510 Time.getCurrentTimezone()); 511 endAdjustedForAllDay = Utils.convertAlldayUtcToLocal(t, info.startMillis, 512 Time.getCurrentTimezone()); 513 } 514 515 // We change an event's priority bucket at 15 minutes into the event or 1/4 event duration. 516 long nextRefreshTime = Long.MAX_VALUE; 517 long gracePeriodCutoff = startAdjustedForAllDay + 518 getGracePeriodMs(startAdjustedForAllDay, endAdjustedForAllDay, info.allDay); 519 if (gracePeriodCutoff > currentTime) { 520 nextRefreshTime = Math.min(nextRefreshTime, gracePeriodCutoff); 521 } 522 523 // ... and at the end (so expiring ones drop into a digest). 524 if (endAdjustedForAllDay > currentTime && endAdjustedForAllDay > gracePeriodCutoff) { 525 nextRefreshTime = Math.min(nextRefreshTime, endAdjustedForAllDay); 526 } 527 return nextRefreshTime; 528 } 529 530 /** 531 * Processes the query results and bucketizes the alerts. 532 * 533 * @param highPriorityEvents This will contain future events, and concurrent events 534 * that started recently (less than the interval DEPRIORITIZE_GRACE_PERIOD_MS). 535 * @param mediumPriorityEvents This will contain concurrent events that started 536 * more than DEPRIORITIZE_GRACE_PERIOD_MS ago. 537 * @param lowPriorityEvents Will contain events that have ended. 538 * @return Returns the number of new alerts to fire. If this is 0, it implies 539 * a quiet update. 540 */ 541 static int processQuery(final Cursor alertCursor, final Context context, 542 final long currentTime, ArrayList<NotificationInfo> highPriorityEvents, 543 ArrayList<NotificationInfo> mediumPriorityEvents, 544 ArrayList<NotificationInfo> lowPriorityEvents) { 545 // Experimental reminder setting to only remind for events that have 546 // been responded to with "yes" or "maybe". 547 String skipRemindersPref = Utils.getSharedPreference(context, 548 OtherPreferences.KEY_OTHER_REMINDERS_RESPONDED, ""); 549 // Skip no-response events if the "Skip Reminders" preference has the second option, 550 // "If declined or not responded", is selected. 551 // Note that by default, the first option will be selected, so this will be false. 552 boolean remindRespondedOnly = skipRemindersPref.equals(context.getResources(). 553 getStringArray(R.array.preferences_skip_reminders_values)[1]); 554 // Experimental reminder setting to silence reminders when they are 555 // during the pre-defined quiet hours. 556 boolean useQuietHours = Utils.getSharedPreference(context, 557 OtherPreferences.KEY_OTHER_QUIET_HOURS, false); 558 // Note that the start time may be either before or after the end time, 559 // depending on whether quiet hours cross through midnight. 560 int quietHoursStartHour = 561 OtherPreferences.QUIET_HOURS_DEFAULT_START_HOUR; 562 int quietHoursStartMinute = 563 OtherPreferences.QUIET_HOURS_DEFAULT_START_MINUTE; 564 int quietHoursEndHour = 565 OtherPreferences.QUIET_HOURS_DEFAULT_END_HOUR; 566 int quietHoursEndMinute = 567 OtherPreferences.QUIET_HOURS_DEFAULT_END_MINUTE; 568 if (useQuietHours) { 569 quietHoursStartHour = Utils.getSharedPreference(context, 570 OtherPreferences.KEY_OTHER_QUIET_HOURS_START_HOUR, 571 OtherPreferences.QUIET_HOURS_DEFAULT_START_HOUR); 572 quietHoursStartMinute = Utils.getSharedPreference(context, 573 OtherPreferences.KEY_OTHER_QUIET_HOURS_START_MINUTE, 574 OtherPreferences.QUIET_HOURS_DEFAULT_START_MINUTE); 575 quietHoursEndHour = Utils.getSharedPreference(context, 576 OtherPreferences.KEY_OTHER_QUIET_HOURS_END_HOUR, 577 OtherPreferences.QUIET_HOURS_DEFAULT_END_HOUR); 578 quietHoursEndMinute = Utils.getSharedPreference(context, 579 OtherPreferences.KEY_OTHER_QUIET_HOURS_END_MINUTE, 580 OtherPreferences.QUIET_HOURS_DEFAULT_END_MINUTE); 581 } 582 Time time = new Time(); 583 584 ContentResolver cr = context.getContentResolver(); 585 HashMap<Long, NotificationInfo> eventIds = new HashMap<Long, NotificationInfo>(); 586 int numFired = 0; 587 try { 588 while (alertCursor.moveToNext()) { 589 final long alertId = alertCursor.getLong(ALERT_INDEX_ID); 590 final long eventId = alertCursor.getLong(ALERT_INDEX_EVENT_ID); 591 final int minutes = alertCursor.getInt(ALERT_INDEX_MINUTES); 592 final String eventName = alertCursor.getString(ALERT_INDEX_TITLE); 593 final String description = alertCursor.getString(ALERT_INDEX_DESCRIPTION); 594 final String location = alertCursor.getString(ALERT_INDEX_EVENT_LOCATION); 595 final int status = alertCursor.getInt(ALERT_INDEX_SELF_ATTENDEE_STATUS); 596 final boolean declined = status == Attendees.ATTENDEE_STATUS_DECLINED; 597 final boolean responded = status != Attendees.ATTENDEE_STATUS_NONE 598 && status != Attendees.ATTENDEE_STATUS_INVITED; 599 final long beginTime = alertCursor.getLong(ALERT_INDEX_BEGIN); 600 final long endTime = alertCursor.getLong(ALERT_INDEX_END); 601 final Uri alertUri = ContentUris 602 .withAppendedId(CalendarAlerts.CONTENT_URI, alertId); 603 final long alarmTime = alertCursor.getLong(ALERT_INDEX_ALARM_TIME); 604 boolean forceQuiet = false; 605 if (useQuietHours) { 606 // Quiet hours have been set. 607 time.set(alarmTime); 608 // Check whether the alarm will fire after the quiet hours 609 // start time and/or before the quiet hours end time. 610 boolean alarmAfterQuietHoursStart = 611 (time.hour > quietHoursStartHour || 612 (time.hour == quietHoursStartHour 613 && time.minute >= quietHoursStartMinute)); 614 boolean alarmBeforeQuietHoursEnd = 615 (time.hour < quietHoursEndHour || 616 (time.hour == quietHoursEndHour 617 && time.minute <= quietHoursEndMinute)); 618 // Check if quiet hours crosses through midnight, iff: 619 // start hour is after end hour, or 620 // start hour is equal to end hour, and start minute is 621 // after end minute. 622 // i.e. 22:30 - 06:45; 12:45 - 12:00 623 // 01:05 - 10:30; 05:00 - 05:30 624 boolean quietHoursCrossesMidnight = 625 quietHoursStartHour > quietHoursEndHour || 626 (quietHoursStartHour == quietHoursEndHour 627 && quietHoursStartMinute > quietHoursEndMinute); 628 if (quietHoursCrossesMidnight) { 629 // Quiet hours crosses midnight. Alarm should be quiet 630 // if it's after start time OR before end time. 631 if (alarmAfterQuietHoursStart || 632 alarmBeforeQuietHoursEnd) { 633 forceQuiet = true; 634 } 635 } else { 636 // Quiet hours doesn't cross midnight. Alarm should be 637 // quiet if it's after start time AND before end time. 638 if (alarmAfterQuietHoursStart && 639 alarmBeforeQuietHoursEnd) { 640 forceQuiet = true; 641 } 642 } 643 } 644 int state = alertCursor.getInt(ALERT_INDEX_STATE); 645 final boolean allDay = alertCursor.getInt(ALERT_INDEX_ALL_DAY) != 0; 646 647 // Use app local storage to keep track of fired alerts to fix problem of multiple 648 // installed calendar apps potentially causing missed alarms. 649 boolean newAlertOverride = false; 650 if (AlertUtils.BYPASS_DB && ((currentTime - alarmTime) / MINUTE_MS < 1)) { 651 // To avoid re-firing alerts, only fire if alarmTime is very recent. Otherwise 652 // we can get refires for non-dismissed alerts after app installation, or if the 653 // SharedPrefs was cleared too early. This means alerts that were timed while 654 // the phone was off may show up silently in the notification bar. 655 boolean alreadyFired = AlertUtils.hasAlertFiredInSharedPrefs(context, eventId, 656 beginTime, alarmTime); 657 if (!alreadyFired) { 658 newAlertOverride = true; 659 } 660 } 661 662 if (DEBUG) { 663 StringBuilder msgBuilder = new StringBuilder(); 664 msgBuilder.append("alertCursor result: alarmTime:").append(alarmTime) 665 .append(" alertId:").append(alertId) 666 .append(" eventId:").append(eventId) 667 .append(" state: ").append(state) 668 .append(" minutes:").append(minutes) 669 .append(" declined:").append(declined) 670 .append(" responded:").append(responded) 671 .append(" beginTime:").append(beginTime) 672 .append(" endTime:").append(endTime) 673 .append(" allDay:").append(allDay) 674 .append(" alarmTime:").append(alarmTime) 675 .append(" forceQuiet:").append(forceQuiet); 676 if (AlertUtils.BYPASS_DB) { 677 msgBuilder.append(" newAlertOverride: " + newAlertOverride); 678 } 679 Log.d(TAG, msgBuilder.toString()); 680 } 681 682 ContentValues values = new ContentValues(); 683 int newState = -1; 684 boolean newAlert = false; 685 686 // Uncomment for the behavior of clearing out alerts after the 687 // events ended. b/1880369 688 // 689 // if (endTime < currentTime) { 690 // newState = CalendarAlerts.DISMISSED; 691 // } else 692 693 // Remove declined events 694 boolean sendAlert = !declined; 695 // Check for experimental reminder settings. 696 if (remindRespondedOnly) { 697 // If the experimental setting is turned on, then only send 698 // the alert if you've responded to the event. 699 sendAlert = sendAlert && responded; 700 } 701 if (sendAlert) { 702 if (state == CalendarAlerts.STATE_SCHEDULED || newAlertOverride) { 703 newState = CalendarAlerts.STATE_FIRED; 704 numFired++; 705 // If quiet hours are forcing the alarm to be silent, 706 // keep newAlert as false so it will not make noise. 707 if (!forceQuiet) { 708 newAlert = true; 709 } 710 711 // Record the received time in the CalendarAlerts table. 712 // This is useful for finding bugs that cause alarms to be 713 // missed or delayed. 714 values.put(CalendarAlerts.RECEIVED_TIME, currentTime); 715 } 716 } else { 717 newState = CalendarAlerts.STATE_DISMISSED; 718 } 719 720 // Update row if state changed 721 if (newState != -1) { 722 values.put(CalendarAlerts.STATE, newState); 723 state = newState; 724 725 if (AlertUtils.BYPASS_DB) { 726 AlertUtils.setAlertFiredInSharedPrefs(context, eventId, beginTime, 727 alarmTime); 728 } 729 } 730 731 if (state == CalendarAlerts.STATE_FIRED) { 732 // Record the time posting to notification manager. 733 // This is used for debugging missed alarms. 734 values.put(CalendarAlerts.NOTIFY_TIME, currentTime); 735 } 736 737 // Write row to if anything changed 738 if (values.size() > 0) cr.update(alertUri, values, null, null); 739 740 if (state != CalendarAlerts.STATE_FIRED) { 741 continue; 742 } 743 744 // TODO: Prefer accepted events in case of ties. 745 NotificationInfo newInfo = new NotificationInfo(eventName, location, 746 description, beginTime, endTime, eventId, allDay, newAlert); 747 748 // Adjust for all day events to ensure the right bucket. Don't use the 1/4 event 749 // duration grace period for these. 750 long beginTimeAdjustedForAllDay = beginTime; 751 String tz = null; 752 if (allDay) { 753 tz = TimeZone.getDefault().getID(); 754 beginTimeAdjustedForAllDay = Utils.convertAlldayUtcToLocal(null, beginTime, 755 tz); 756 } 757 758 // Handle multiple alerts for the same event ID. 759 if (eventIds.containsKey(eventId)) { 760 NotificationInfo oldInfo = eventIds.get(eventId); 761 long oldBeginTimeAdjustedForAllDay = oldInfo.startMillis; 762 if (allDay) { 763 oldBeginTimeAdjustedForAllDay = Utils.convertAlldayUtcToLocal(null, 764 oldInfo.startMillis, tz); 765 } 766 767 // Determine whether to replace the previous reminder with this one. 768 // Query results are sorted so this one will always have a lower start time. 769 long oldStartInterval = oldBeginTimeAdjustedForAllDay - currentTime; 770 long newStartInterval = beginTimeAdjustedForAllDay - currentTime; 771 boolean dropOld; 772 if (newStartInterval < 0 && oldStartInterval > 0) { 773 // Use this reminder if this event started recently 774 dropOld = Math.abs(newStartInterval) < MIN_DEPRIORITIZE_GRACE_PERIOD_MS; 775 } else { 776 // ... or if this one has a closer start time. 777 dropOld = Math.abs(newStartInterval) < Math.abs(oldStartInterval); 778 } 779 780 if (dropOld) { 781 // This is a recurring event that has a more relevant start time, 782 // drop other reminder in favor of this one. 783 // 784 // It will only be present in 1 of these buckets; just remove from 785 // multiple buckets since this occurrence is rare enough that the 786 // inefficiency of multiple removals shouldn't be a big deal to 787 // justify a more complicated data structure. Expired events don't 788 // have individual notifications so we don't need to clean that up. 789 highPriorityEvents.remove(oldInfo); 790 mediumPriorityEvents.remove(oldInfo); 791 if (DEBUG) { 792 Log.d(TAG, "Dropping alert for recurring event ID:" + oldInfo.eventId 793 + ", startTime:" + oldInfo.startMillis 794 + " in favor of startTime:" + newInfo.startMillis); 795 } 796 } else { 797 // Skip duplicate reminders for the same event instance. 798 continue; 799 } 800 } 801 802 // TODO: Prioritize by "primary" calendar 803 eventIds.put(eventId, newInfo); 804 long highPriorityCutoff = currentTime - 805 getGracePeriodMs(beginTime, endTime, allDay); 806 807 if (beginTimeAdjustedForAllDay > highPriorityCutoff) { 808 // High priority = future events or events that just started 809 highPriorityEvents.add(newInfo); 810 } else if (allDay && tz != null && DateUtils.isToday(beginTimeAdjustedForAllDay)) { 811 // Medium priority = in progress all day events 812 mediumPriorityEvents.add(newInfo); 813 } else { 814 lowPriorityEvents.add(newInfo); 815 } 816 } 817 // TODO(cwren) add beginTime/startTime 818 GlobalDismissManager.processEventIds(context, eventIds.keySet()); 819 } finally { 820 if (alertCursor != null) { 821 alertCursor.close(); 822 } 823 } 824 return numFired; 825 } 826 827 /** 828 * High priority cutoff should be 1/4 event duration or 15 min, whichever is longer. 829 */ 830 private static long getGracePeriodMs(long beginTime, long endTime, boolean allDay) { 831 if (allDay) { 832 // We don't want all day events to be high priority for hours, so automatically 833 // demote these after 15 min. 834 return MIN_DEPRIORITIZE_GRACE_PERIOD_MS; 835 } else { 836 return Math.max(MIN_DEPRIORITIZE_GRACE_PERIOD_MS, ((endTime - beginTime) / 4)); 837 } 838 } 839 840 private static String getDigestTitle(ArrayList<NotificationInfo> events) { 841 StringBuilder digestTitle = new StringBuilder(); 842 for (NotificationInfo eventInfo : events) { 843 if (!TextUtils.isEmpty(eventInfo.eventName)) { 844 if (digestTitle.length() > 0) { 845 digestTitle.append(", "); 846 } 847 digestTitle.append(eventInfo.eventName); 848 } 849 } 850 return digestTitle.toString(); 851 } 852 853 private static void postNotification(NotificationInfo info, String summaryText, 854 Context context, boolean highPriority, NotificationPrefs prefs, 855 NotificationMgr notificationMgr, int notificationId) { 856 int priorityVal = Notification.PRIORITY_DEFAULT; 857 if (highPriority) { 858 priorityVal = Notification.PRIORITY_HIGH; 859 } 860 861 String tickerText = getTickerText(info.eventName, info.location); 862 NotificationWrapper notification = AlertReceiver.makeExpandingNotification(context, 863 info.eventName, summaryText, info.description, info.startMillis, 864 info.endMillis, info.eventId, notificationId, prefs.getDoPopup(), priorityVal); 865 866 boolean quietUpdate = true; 867 String ringtone = NotificationPrefs.EMPTY_RINGTONE; 868 if (info.newAlert) { 869 quietUpdate = prefs.quietUpdate; 870 871 // If we've already played a ringtone, don't play any more sounds so only 872 // 1 sound per group of notifications. 873 ringtone = prefs.getRingtoneAndSilence(); 874 } 875 addNotificationOptions(notification, quietUpdate, tickerText, 876 prefs.getDefaultVibrate(), ringtone, 877 true); /* Show the LED for these non-expired events */ 878 879 // Post the notification. 880 notificationMgr.notify(notificationId, notification); 881 882 if (DEBUG) { 883 Log.d(TAG, "Posting individual alarm notification, eventId:" + info.eventId 884 + ", notificationId:" + notificationId 885 + (TextUtils.isEmpty(ringtone) ? ", quiet" : ", LOUD") 886 + (highPriority ? ", high-priority" : "")); 887 } 888 } 889 890 private static String getTickerText(String eventName, String location) { 891 String tickerText = eventName; 892 if (!TextUtils.isEmpty(location)) { 893 tickerText = eventName + " - " + location; 894 } 895 return tickerText; 896 } 897 898 static class NotificationInfo { 899 String eventName; 900 String location; 901 String description; 902 long startMillis; 903 long endMillis; 904 long eventId; 905 boolean allDay; 906 boolean newAlert; 907 908 NotificationInfo(String eventName, String location, String description, long startMillis, 909 long endMillis, long eventId, boolean allDay, boolean newAlert) { 910 this.eventName = eventName; 911 this.location = location; 912 this.description = description; 913 this.startMillis = startMillis; 914 this.endMillis = endMillis; 915 this.eventId = eventId; 916 this.newAlert = newAlert; 917 this.allDay = allDay; 918 } 919 } 920 921 private static void addNotificationOptions(NotificationWrapper nw, boolean quietUpdate, 922 String tickerText, boolean defaultVibrate, String reminderRingtone, 923 boolean showLights) { 924 Notification notification = nw.mNotification; 925 if (showLights) { 926 notification.flags |= Notification.FLAG_SHOW_LIGHTS; 927 notification.defaults |= Notification.DEFAULT_LIGHTS; 928 } 929 930 // Quietly update notification bar. Nothing new. Maybe something just got deleted. 931 if (!quietUpdate) { 932 // Flash ticker in status bar 933 if (!TextUtils.isEmpty(tickerText)) { 934 notification.tickerText = tickerText; 935 } 936 937 // Generate either a pop-up dialog, status bar notification, or 938 // neither. Pop-up dialog and status bar notification may include a 939 // sound, an alert, or both. A status bar notification also includes 940 // a toast. 941 if (defaultVibrate) { 942 notification.defaults |= Notification.DEFAULT_VIBRATE; 943 } 944 945 // Possibly generate a sound. If 'Silent' is chosen, the ringtone 946 // string will be empty. 947 notification.sound = TextUtils.isEmpty(reminderRingtone) ? null : Uri 948 .parse(reminderRingtone); 949 } 950 } 951 952 /* package */ static class NotificationPrefs { 953 boolean quietUpdate; 954 private Context context; 955 private SharedPreferences prefs; 956 957 // These are lazily initialized, do not access any of the following directly; use getters. 958 private int doPopup = -1; 959 private int defaultVibrate = -1; 960 private String ringtone = null; 961 962 private static final String EMPTY_RINGTONE = ""; 963 964 NotificationPrefs(Context context, SharedPreferences prefs, boolean quietUpdate) { 965 this.context = context; 966 this.prefs = prefs; 967 this.quietUpdate = quietUpdate; 968 } 969 970 private boolean getDoPopup() { 971 if (doPopup < 0) { 972 if (prefs.getBoolean(GeneralPreferences.KEY_ALERTS_POPUP, false)) { 973 doPopup = 1; 974 } else { 975 doPopup = 0; 976 } 977 } 978 return doPopup == 1; 979 } 980 981 private boolean getDefaultVibrate() { 982 if (defaultVibrate < 0) { 983 defaultVibrate = Utils.getDefaultVibrate(context, prefs) ? 1 : 0; 984 } 985 return defaultVibrate == 1; 986 } 987 988 private String getRingtoneAndSilence() { 989 if (ringtone == null) { 990 if (quietUpdate) { 991 ringtone = EMPTY_RINGTONE; 992 } else { 993 ringtone = Utils.getRingTonePreference(context); 994 } 995 } 996 String retVal = ringtone; 997 ringtone = EMPTY_RINGTONE; 998 return retVal; 999 } 1000 } 1001 1002 private void doTimeChanged() { 1003 ContentResolver cr = getContentResolver(); 1004 // TODO Move this into Provider 1005 rescheduleMissedAlarms(cr, this, AlertUtils.createAlarmManager(this)); 1006 updateAlertNotification(this); 1007 } 1008 1009 private static final String SORT_ORDER_ALARMTIME_ASC = 1010 CalendarContract.CalendarAlerts.ALARM_TIME + " ASC"; 1011 1012 private static final String WHERE_RESCHEDULE_MISSED_ALARMS = 1013 CalendarContract.CalendarAlerts.STATE 1014 + "=" 1015 + CalendarContract.CalendarAlerts.STATE_SCHEDULED 1016 + " AND " 1017 + CalendarContract.CalendarAlerts.ALARM_TIME 1018 + "<?" 1019 + " AND " 1020 + CalendarContract.CalendarAlerts.ALARM_TIME 1021 + ">?" 1022 + " AND " 1023 + CalendarContract.CalendarAlerts.END + ">=?"; 1024 1025 /** 1026 * Searches the CalendarAlerts table for alarms that should have fired but 1027 * have not and then reschedules them. This method can be called at boot 1028 * time to restore alarms that may have been lost due to a phone reboot. 1029 * 1030 * @param cr the ContentResolver 1031 * @param context the Context 1032 * @param manager the AlarmManager 1033 */ 1034 private static final void rescheduleMissedAlarms(ContentResolver cr, Context context, 1035 AlarmManagerInterface manager) { 1036 // Get all the alerts that have been scheduled but have not fired 1037 // and should have fired by now and are not too old. 1038 long now = System.currentTimeMillis(); 1039 long ancient = now - DateUtils.DAY_IN_MILLIS; 1040 String[] projection = new String[] { 1041 CalendarContract.CalendarAlerts.ALARM_TIME, 1042 }; 1043 1044 // TODO: construct an explicit SQL query so that we can add 1045 // "GROUPBY" instead of doing a sort and de-dup 1046 Cursor cursor = cr.query(CalendarAlerts.CONTENT_URI, projection, 1047 WHERE_RESCHEDULE_MISSED_ALARMS, (new String[] { 1048 Long.toString(now), Long.toString(ancient), Long.toString(now) 1049 }), SORT_ORDER_ALARMTIME_ASC); 1050 if (cursor == null) { 1051 return; 1052 } 1053 1054 if (DEBUG) { 1055 Log.d(TAG, "missed alarms found: " + cursor.getCount()); 1056 } 1057 1058 try { 1059 long alarmTime = -1; 1060 1061 while (cursor.moveToNext()) { 1062 long newAlarmTime = cursor.getLong(0); 1063 if (alarmTime != newAlarmTime) { 1064 if (DEBUG) { 1065 Log.w(TAG, "rescheduling missed alarm. alarmTime: " + newAlarmTime); 1066 } 1067 AlertUtils.scheduleAlarm(context, manager, newAlarmTime); 1068 alarmTime = newAlarmTime; 1069 } 1070 } 1071 } finally { 1072 cursor.close(); 1073 } 1074 } 1075 1076 private final class ServiceHandler extends Handler { 1077 public ServiceHandler(Looper looper) { 1078 super(looper); 1079 } 1080 1081 @Override 1082 public void handleMessage(Message msg) { 1083 processMessage(msg); 1084 // NOTE: We MUST not call stopSelf() directly, since we need to 1085 // make sure the wake lock acquired by AlertReceiver is released. 1086 AlertReceiver.finishStartingService(AlertService.this, msg.arg1); 1087 } 1088 } 1089 1090 @Override 1091 public void onCreate() { 1092 HandlerThread thread = new HandlerThread("AlertService", 1093 Process.THREAD_PRIORITY_BACKGROUND); 1094 thread.start(); 1095 1096 mServiceLooper = thread.getLooper(); 1097 mServiceHandler = new ServiceHandler(mServiceLooper); 1098 1099 // Flushes old fired alerts from internal storage, if needed. 1100 AlertUtils.flushOldAlertsFromInternalStorage(getApplication()); 1101 } 1102 1103 @Override 1104 public int onStartCommand(Intent intent, int flags, int startId) { 1105 if (intent != null) { 1106 Message msg = mServiceHandler.obtainMessage(); 1107 msg.arg1 = startId; 1108 msg.obj = intent.getExtras(); 1109 mServiceHandler.sendMessage(msg); 1110 } 1111 return START_REDELIVER_INTENT; 1112 } 1113 1114 @Override 1115 public void onDestroy() { 1116 mServiceLooper.quit(); 1117 } 1118 1119 @Override 1120 public IBinder onBind(Intent intent) { 1121 return null; 1122 } 1123 } 1124