1 /* 2 * Copyright (C) 2009 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; 18 19 import android.content.AsyncQueryHandler; 20 import android.content.ContentResolver; 21 import android.content.Context; 22 import android.database.Cursor; 23 import android.net.Uri; 24 import android.provider.Calendar.Attendees; 25 import android.provider.Calendar.Calendars; 26 import android.provider.Calendar.Instances; 27 import android.text.format.DateUtils; 28 import android.text.format.Time; 29 import android.util.Log; 30 import android.view.LayoutInflater; 31 import android.view.View; 32 import android.view.View.OnClickListener; 33 import android.view.ViewGroup; 34 import android.widget.BaseAdapter; 35 import android.widget.TextView; 36 37 import java.util.Iterator; 38 import java.util.LinkedList; 39 import java.util.concurrent.ConcurrentLinkedQueue; 40 41 /* 42 Bugs Bugs Bugs: 43 - At rotation and launch time, the initial position is not set properly. This code is calling 44 listview.setSelection() in 2 rapid secessions but it dropped or didn't process the first one. 45 - Scroll using trackball isn't repositioning properly after a new adapter is added. 46 - Track ball clicks at the header/footer doesn't work. 47 - Potential ping pong effect if the prefetch window is big and data is limited 48 - Add index in calendar provider 49 50 ToDo ToDo ToDo: 51 Get design of header and footer from designer 52 53 Make scrolling smoother. 54 Test for correctness 55 Loading speed 56 Check for leaks and excessive allocations 57 */ 58 59 public class AgendaWindowAdapter extends BaseAdapter { 60 61 static final boolean BASICLOG = false; 62 static final boolean DEBUGLOG = false; 63 private static String TAG = "AgendaWindowAdapter"; 64 65 private static final String AGENDA_SORT_ORDER = "startDay ASC, begin ASC, title ASC"; 66 public static final int INDEX_TITLE = 1; 67 public static final int INDEX_EVENT_LOCATION = 2; 68 public static final int INDEX_ALL_DAY = 3; 69 public static final int INDEX_HAS_ALARM = 4; 70 public static final int INDEX_COLOR = 5; 71 public static final int INDEX_RRULE = 6; 72 public static final int INDEX_BEGIN = 7; 73 public static final int INDEX_END = 8; 74 public static final int INDEX_EVENT_ID = 9; 75 public static final int INDEX_START_DAY = 10; 76 public static final int INDEX_END_DAY = 11; 77 public static final int INDEX_SELF_ATTENDEE_STATUS = 12; 78 79 private static final String[] PROJECTION = new String[] { 80 Instances._ID, // 0 81 Instances.TITLE, // 1 82 Instances.EVENT_LOCATION, // 2 83 Instances.ALL_DAY, // 3 84 Instances.HAS_ALARM, // 4 85 Instances.COLOR, // 5 86 Instances.RRULE, // 6 87 Instances.BEGIN, // 7 88 Instances.END, // 8 89 Instances.EVENT_ID, // 9 90 Instances.START_DAY, // 10 Julian start day 91 Instances.END_DAY, // 11 Julian end day 92 Instances.SELF_ATTENDEE_STATUS, // 12 93 }; 94 95 // Listview may have a bug where the index/position is not consistent when there's a header. 96 // TODO Need to look into this. 97 private static final int OFF_BY_ONE_BUG = 1; 98 99 private static final int MAX_NUM_OF_ADAPTERS = 5; 100 101 private static final int IDEAL_NUM_OF_EVENTS = 50; 102 103 private static final int MIN_QUERY_DURATION = 7; // days 104 105 private static final int MAX_QUERY_DURATION = 60; // days 106 107 private static final int PREFETCH_BOUNDARY = 1; 108 109 // Times to auto-expand/retry query after getting no data 110 private static final int RETRIES_ON_NO_DATA = 0; 111 112 private Context mContext; 113 114 private QueryHandler mQueryHandler; 115 116 private AgendaListView mAgendaListView; 117 118 private int mRowCount; // The sum of the rows in all the adapters 119 120 private int mEmptyCursorCount; 121 122 private DayAdapterInfo mLastUsedInfo; // Cached value of the last used adapter. 123 124 private LinkedList<DayAdapterInfo> mAdapterInfos = new LinkedList<DayAdapterInfo>(); 125 126 private ConcurrentLinkedQueue<QuerySpec> mQueryQueue = new ConcurrentLinkedQueue<QuerySpec>(); 127 128 private TextView mHeaderView; 129 130 private TextView mFooterView; 131 132 private boolean mDoneSettingUpHeaderFooter = false; 133 134 /* 135 * When the user scrolled to the top, a query will be made for older events 136 * and this will be incremented. Don't make more requests if 137 * mOlderRequests > mOlderRequestsProcessed. 138 */ 139 private int mOlderRequests; 140 141 // Number of "older" query that has been processed. 142 private int mOlderRequestsProcessed; 143 144 /* 145 * When the user scrolled to the bottom, a query will be made for newer 146 * events and this will be incremented. Don't make more requests if 147 * mNewerRequests > mNewerRequestsProcessed. 148 */ 149 private int mNewerRequests; 150 151 // Number of "newer" query that has been processed. 152 private int mNewerRequestsProcessed; 153 154 private boolean mShuttingDown; 155 private boolean mHideDeclined; 156 157 // Types of Query 158 private static final int QUERY_TYPE_OLDER = 0; // Query for older events 159 private static final int QUERY_TYPE_NEWER = 1; // Query for newer events 160 private static final int QUERY_TYPE_CLEAN = 2; // Delete everything and query around a date 161 162 // Placeholder if we need some code for updating the tz later. 163 private Runnable mUpdateTZ = null; 164 165 private static class QuerySpec { 166 long queryStartMillis; 167 168 Time goToTime; 169 170 int start; 171 172 int end; 173 174 int queryType; 175 176 public QuerySpec(int queryType) { 177 this.queryType = queryType; 178 } 179 180 @Override 181 public int hashCode() { 182 final int prime = 31; 183 int result = 1; 184 result = prime * result + end; 185 result = prime * result + (int) (queryStartMillis ^ (queryStartMillis >>> 32)); 186 result = prime * result + queryType; 187 result = prime * result + start; 188 if (goToTime != null) { 189 long goToTimeMillis = goToTime.toMillis(false); 190 result = prime * result + (int) (goToTimeMillis ^ (goToTimeMillis >>> 32)); 191 } 192 return result; 193 } 194 195 @Override 196 public boolean equals(Object obj) { 197 if (this == obj) return true; 198 if (obj == null) return false; 199 if (getClass() != obj.getClass()) return false; 200 QuerySpec other = (QuerySpec) obj; 201 if (end != other.end || queryStartMillis != other.queryStartMillis 202 || queryType != other.queryType || start != other.start) { 203 return false; 204 } 205 if (goToTime != null) { 206 if (goToTime.toMillis(false) != other.goToTime.toMillis(false)) { 207 return false; 208 } 209 } else { 210 if (other.goToTime != null) { 211 return false; 212 } 213 } 214 return true; 215 } 216 } 217 218 static class EventInfo { 219 long begin; 220 221 long end; 222 223 long id; 224 225 boolean allday; 226 } 227 228 static class DayAdapterInfo { 229 Cursor cursor; 230 231 AgendaByDayAdapter dayAdapter; 232 233 int start; // start day of the cursor's coverage 234 235 int end; // end day of the cursor's coverage 236 237 int offset; // offset in position in the list view 238 239 int size; // dayAdapter.getCount() 240 241 public DayAdapterInfo(Context context) { 242 dayAdapter = new AgendaByDayAdapter(context); 243 } 244 245 @Override 246 public String toString() { 247 Time time = new Time(); 248 StringBuilder sb = new StringBuilder(); 249 time.setJulianDay(start); 250 time.normalize(false); 251 sb.append("Start:").append(time.toString()); 252 time.setJulianDay(end); 253 time.normalize(false); 254 sb.append(" End:").append(time.toString()); 255 sb.append(" Offset:").append(offset); 256 sb.append(" Size:").append(size); 257 return sb.toString(); 258 } 259 } 260 261 public AgendaWindowAdapter(AgendaActivity agendaActivity, 262 AgendaListView agendaListView) { 263 mContext = agendaActivity; 264 mAgendaListView = agendaListView; 265 mQueryHandler = new QueryHandler(agendaActivity.getContentResolver()); 266 267 LayoutInflater inflater = (LayoutInflater) agendaActivity 268 .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 269 mHeaderView = (TextView)inflater.inflate(R.layout.agenda_header_footer, null); 270 mFooterView = (TextView)inflater.inflate(R.layout.agenda_header_footer, null); 271 mHeaderView.setText(R.string.loading); 272 mAgendaListView.addHeaderView(mHeaderView); 273 } 274 275 // Method in Adapter 276 @Override 277 public int getViewTypeCount() { 278 return AgendaByDayAdapter.TYPE_LAST; 279 } 280 281 // Method in BaseAdapter 282 @Override 283 public boolean areAllItemsEnabled() { 284 return false; 285 } 286 287 // Method in Adapter 288 @Override 289 public int getItemViewType(int position) { 290 DayAdapterInfo info = getAdapterInfoByPosition(position); 291 if (info != null) { 292 return info.dayAdapter.getItemViewType(position - info.offset); 293 } else { 294 return -1; 295 } 296 } 297 298 // Method in BaseAdapter 299 @Override 300 public boolean isEnabled(int position) { 301 DayAdapterInfo info = getAdapterInfoByPosition(position); 302 if (info != null) { 303 return info.dayAdapter.isEnabled(position - info.offset); 304 } else { 305 return false; 306 } 307 } 308 309 // Abstract Method in BaseAdapter 310 public int getCount() { 311 return mRowCount; 312 } 313 314 // Abstract Method in BaseAdapter 315 public Object getItem(int position) { 316 DayAdapterInfo info = getAdapterInfoByPosition(position); 317 if (info != null) { 318 return info.dayAdapter.getItem(position - info.offset); 319 } else { 320 return null; 321 } 322 } 323 324 // Method in BaseAdapter 325 @Override 326 public boolean hasStableIds() { 327 return true; 328 } 329 330 // Abstract Method in BaseAdapter 331 public long getItemId(int position) { 332 DayAdapterInfo info = getAdapterInfoByPosition(position); 333 if (info != null) { 334 return ((position - info.offset) << 20) + info.start ; 335 } else { 336 return -1; 337 } 338 } 339 340 // Abstract Method in BaseAdapter 341 public View getView(int position, View convertView, ViewGroup parent) { 342 if (position >= (mRowCount - PREFETCH_BOUNDARY) 343 && mNewerRequests <= mNewerRequestsProcessed) { 344 if (DEBUGLOG) Log.e(TAG, "queryForNewerEvents: "); 345 mNewerRequests++; 346 queueQuery(new QuerySpec(QUERY_TYPE_NEWER)); 347 } 348 349 if (position < PREFETCH_BOUNDARY 350 && mOlderRequests <= mOlderRequestsProcessed) { 351 if (DEBUGLOG) Log.e(TAG, "queryForOlderEvents: "); 352 mOlderRequests++; 353 queueQuery(new QuerySpec(QUERY_TYPE_OLDER)); 354 } 355 356 View v; 357 DayAdapterInfo info = getAdapterInfoByPosition(position); 358 if (info != null) { 359 v = info.dayAdapter.getView(position - info.offset, convertView, 360 parent); 361 } else { 362 //TODO 363 Log.e(TAG, "BUG: getAdapterInfoByPosition returned null!!! " + position); 364 TextView tv = new TextView(mContext); 365 tv.setText("Bug! " + position); 366 v = tv; 367 } 368 369 if (DEBUGLOG) { 370 Log.e(TAG, "getView " + position + " = " + getViewTitle(v)); 371 } 372 return v; 373 } 374 375 private int findDayPositionNearestTime(Time time) { 376 if (DEBUGLOG) Log.e(TAG, "findDayPositionNearestTime " + time); 377 378 DayAdapterInfo info = getAdapterInfoByTime(time); 379 if (info != null) { 380 return info.offset + info.dayAdapter.findDayPositionNearestTime(time); 381 } else { 382 return -1; 383 } 384 } 385 386 private DayAdapterInfo getAdapterInfoByPosition(int position) { 387 synchronized (mAdapterInfos) { 388 if (mLastUsedInfo != null && mLastUsedInfo.offset <= position 389 && position < (mLastUsedInfo.offset + mLastUsedInfo.size)) { 390 return mLastUsedInfo; 391 } 392 for (DayAdapterInfo info : mAdapterInfos) { 393 if (info.offset <= position 394 && position < (info.offset + info.size)) { 395 mLastUsedInfo = info; 396 return info; 397 } 398 } 399 } 400 return null; 401 } 402 403 private DayAdapterInfo getAdapterInfoByTime(Time time) { 404 if (DEBUGLOG) Log.e(TAG, "getAdapterInfoByTime " + time.toString()); 405 406 Time tmpTime = new Time(time); 407 long timeInMillis = tmpTime.normalize(true); 408 int day = Time.getJulianDay(timeInMillis, tmpTime.gmtoff); 409 synchronized (mAdapterInfos) { 410 for (DayAdapterInfo info : mAdapterInfos) { 411 if (info.start <= day && day < info.end) { 412 return info; 413 } 414 } 415 } 416 return null; 417 } 418 419 public EventInfo getEventByPosition(int position) { 420 if (DEBUGLOG) Log.e(TAG, "getEventByPosition " + position); 421 422 EventInfo event = new EventInfo(); 423 position -= OFF_BY_ONE_BUG; 424 DayAdapterInfo info = getAdapterInfoByPosition(position); 425 if (info == null) { 426 return null; 427 } 428 429 position = info.dayAdapter.getCursorPosition(position - info.offset); 430 if (position == Integer.MIN_VALUE) { 431 return null; 432 } 433 434 boolean isDayHeader = false; 435 if (position < 0) { 436 position = -position; 437 isDayHeader = true; 438 } 439 440 if (position < info.cursor.getCount()) { 441 info.cursor.moveToPosition(position); 442 event.begin = info.cursor.getLong(AgendaWindowAdapter.INDEX_BEGIN); 443 boolean allDay = info.cursor.getInt(AgendaWindowAdapter.INDEX_ALL_DAY) != 0; 444 445 event.allday = allDay; 446 if (!isDayHeader) { 447 event.end = info.cursor.getLong(AgendaWindowAdapter.INDEX_END); 448 event.id = info.cursor.getLong(AgendaWindowAdapter.INDEX_EVENT_ID); 449 } 450 if (allDay) { // UTC 451 Time time = new Time(Utils.getTimeZone(mContext, mUpdateTZ)); 452 time.setJulianDay(Time.getJulianDay(event.begin, 0)); 453 event.begin = time.toMillis(true /* use isDst */); 454 if (!isDayHeader) { 455 time.setJulianDay(Time.getJulianDay(event.end, 0)); 456 event.end = time.toMillis(true); 457 } 458 } else if (isDayHeader) { // Trim to midnight. 459 Time time = new Time(Utils.getTimeZone(mContext, mUpdateTZ)); 460 time.set(event.begin); 461 time.hour = 0; 462 time.minute = 0; 463 time.second = 0; 464 event.begin = time.toMillis(false /* use isDst */); 465 } 466 467 return event; 468 } 469 return null; 470 } 471 472 public void refresh(Time goToTime, boolean forced) { 473 if (DEBUGLOG) { 474 Log.e(TAG, "refresh " + goToTime.toString() + (forced ? " forced" : " not forced")); 475 } 476 477 int startDay = Time.getJulianDay(goToTime.toMillis(false), goToTime.gmtoff); 478 479 if (!forced && isInRange(startDay, startDay)) { 480 // No need to requery 481 mAgendaListView.setSelection(findDayPositionNearestTime(goToTime) + OFF_BY_ONE_BUG); 482 return; 483 } 484 485 // Query for a total of MIN_QUERY_DURATION days 486 int endDay = startDay + MIN_QUERY_DURATION; 487 488 queueQuery(startDay, endDay, goToTime, QUERY_TYPE_CLEAN); 489 } 490 491 public void close() { 492 mShuttingDown = true; 493 pruneAdapterInfo(QUERY_TYPE_CLEAN); 494 if (mQueryHandler != null) { 495 mQueryHandler.cancelOperation(0); 496 } 497 } 498 499 private DayAdapterInfo pruneAdapterInfo(int queryType) { 500 synchronized (mAdapterInfos) { 501 DayAdapterInfo recycleMe = null; 502 if (!mAdapterInfos.isEmpty()) { 503 if (mAdapterInfos.size() >= MAX_NUM_OF_ADAPTERS) { 504 if (queryType == QUERY_TYPE_NEWER) { 505 recycleMe = mAdapterInfos.removeFirst(); 506 } else if (queryType == QUERY_TYPE_OLDER) { 507 recycleMe = mAdapterInfos.removeLast(); 508 // Keep the size only if the oldest items are removed. 509 recycleMe.size = 0; 510 } 511 if (recycleMe != null) { 512 if (recycleMe.cursor != null) { 513 recycleMe.cursor.close(); 514 } 515 return recycleMe; 516 } 517 } 518 519 if (mRowCount == 0 || queryType == QUERY_TYPE_CLEAN) { 520 mRowCount = 0; 521 int deletedRows = 0; 522 DayAdapterInfo info; 523 do { 524 info = mAdapterInfos.poll(); 525 if (info != null) { 526 info.cursor.close(); 527 deletedRows += info.size; 528 recycleMe = info; 529 } 530 } while (info != null); 531 532 if (recycleMe != null) { 533 recycleMe.cursor = null; 534 recycleMe.size = deletedRows; 535 } 536 } 537 } 538 return recycleMe; 539 } 540 } 541 542 private String buildQuerySelection() { 543 // Respect the preference to show/hide declined events 544 545 if (mHideDeclined) { 546 return Calendars.SELECTED + "=1 AND " 547 + Instances.SELF_ATTENDEE_STATUS + "!=" 548 + Attendees.ATTENDEE_STATUS_DECLINED; 549 } else { 550 return Calendars.SELECTED + "=1"; 551 } 552 } 553 554 private Uri buildQueryUri(int start, int end) { 555 StringBuilder path = new StringBuilder(); 556 path.append(start); 557 path.append('/'); 558 path.append(end); 559 Uri uri = Uri.withAppendedPath(Instances.CONTENT_BY_DAY_URI, path.toString()); 560 return uri; 561 } 562 563 private boolean isInRange(int start, int end) { 564 synchronized (mAdapterInfos) { 565 if (mAdapterInfos.isEmpty()) { 566 return false; 567 } 568 return mAdapterInfos.getFirst().start <= start && end <= mAdapterInfos.getLast().end; 569 } 570 } 571 572 private int calculateQueryDuration(int start, int end) { 573 int queryDuration = MAX_QUERY_DURATION; 574 if (mRowCount != 0) { 575 queryDuration = IDEAL_NUM_OF_EVENTS * (end - start + 1) / mRowCount; 576 } 577 578 if (queryDuration > MAX_QUERY_DURATION) { 579 queryDuration = MAX_QUERY_DURATION; 580 } else if (queryDuration < MIN_QUERY_DURATION) { 581 queryDuration = MIN_QUERY_DURATION; 582 } 583 584 return queryDuration; 585 } 586 587 private boolean queueQuery(int start, int end, Time goToTime, int queryType) { 588 QuerySpec queryData = new QuerySpec(queryType); 589 queryData.goToTime = goToTime; 590 queryData.start = start; 591 queryData.end = end; 592 return queueQuery(queryData); 593 } 594 595 private boolean queueQuery(QuerySpec queryData) { 596 Boolean queuedQuery; 597 synchronized (mQueryQueue) { 598 queuedQuery = false; 599 Boolean doQueryNow = mQueryQueue.isEmpty(); 600 mQueryQueue.add(queryData); 601 queuedQuery = true; 602 if (doQueryNow) { 603 doQuery(queryData); 604 } 605 } 606 return queuedQuery; 607 } 608 609 private void doQuery(QuerySpec queryData) { 610 if (!mAdapterInfos.isEmpty()) { 611 int start = mAdapterInfos.getFirst().start; 612 int end = mAdapterInfos.getLast().end; 613 int queryDuration = calculateQueryDuration(start, end); 614 switch(queryData.queryType) { 615 case QUERY_TYPE_OLDER: 616 queryData.end = start - 1; 617 queryData.start = queryData.end - queryDuration; 618 break; 619 case QUERY_TYPE_NEWER: 620 queryData.start = end + 1; 621 queryData.end = queryData.start + queryDuration; 622 break; 623 } 624 } 625 626 if (BASICLOG) { 627 Time time = new Time(Utils.getTimeZone(mContext, mUpdateTZ)); 628 time.setJulianDay(queryData.start); 629 Time time2 = new Time(Utils.getTimeZone(mContext, mUpdateTZ)); 630 time2.setJulianDay(queryData.end); 631 Log.v(TAG, "startQuery: " + time.toString() + " to " 632 + time2.toString() + " then go to " + queryData.goToTime); 633 } 634 635 mQueryHandler.cancelOperation(0); 636 if (BASICLOG) queryData.queryStartMillis = System.nanoTime(); 637 mQueryHandler.startQuery(0, queryData, buildQueryUri( 638 queryData.start, queryData.end), PROJECTION, 639 buildQuerySelection(), null, AGENDA_SORT_ORDER); 640 } 641 642 private String formatDateString(int julianDay) { 643 Time time = new Time(Utils.getTimeZone(mContext, mUpdateTZ)); 644 time.setJulianDay(julianDay); 645 long millis = time.toMillis(false); 646 return Utils.formatDateRange(mContext, millis, millis, 647 DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_DATE 648 | DateUtils.FORMAT_ABBREV_MONTH).toString(); 649 } 650 651 private void updateHeaderFooter(final int start, final int end) { 652 mHeaderView.setText(mContext.getString(R.string.show_older_events, 653 formatDateString(start))); 654 mFooterView.setText(mContext.getString(R.string.show_newer_events, 655 formatDateString(end))); 656 } 657 658 private class QueryHandler extends AsyncQueryHandler { 659 660 public QueryHandler(ContentResolver cr) { 661 super(cr); 662 } 663 664 @Override 665 protected void onQueryComplete(int token, Object cookie, Cursor cursor) { 666 QuerySpec data = (QuerySpec)cookie; 667 if (BASICLOG) { 668 long queryEndMillis = System.nanoTime(); 669 Log.e(TAG, "Query time(ms): " 670 + (queryEndMillis - data.queryStartMillis) / 1000000 671 + " Count: " + cursor.getCount()); 672 } 673 674 if (mShuttingDown) { 675 cursor.close(); 676 return; 677 } 678 679 // Notify Listview of changes and update position 680 int cursorSize = cursor.getCount(); 681 if (cursorSize > 0 || mAdapterInfos.isEmpty() || data.queryType == QUERY_TYPE_CLEAN) { 682 final int listPositionOffset = processNewCursor(data, cursor); 683 if (data.goToTime == null) { // Typical Scrolling type query 684 notifyDataSetChanged(); 685 if (listPositionOffset != 0) { 686 mAgendaListView.shiftSelection(listPositionOffset); 687 } 688 } else { // refresh() called. Go to the designated position 689 final Time goToTime = data.goToTime; 690 notifyDataSetChanged(); 691 int newPosition = findDayPositionNearestTime(goToTime); 692 if (newPosition >= 0) { 693 mAgendaListView.setSelection(newPosition + OFF_BY_ONE_BUG); 694 } 695 if (DEBUGLOG) { 696 Log.e(TAG, "Setting listview to " + 697 "findDayPositionNearestTime: " + (newPosition + OFF_BY_ONE_BUG)); 698 } 699 } 700 } else { 701 cursor.close(); 702 } 703 704 // Update header and footer 705 if (!mDoneSettingUpHeaderFooter) { 706 OnClickListener headerFooterOnClickListener = new OnClickListener() { 707 public void onClick(View v) { 708 if (v == mHeaderView) { 709 queueQuery(new QuerySpec(QUERY_TYPE_OLDER)); 710 } else { 711 queueQuery(new QuerySpec(QUERY_TYPE_NEWER)); 712 } 713 }}; 714 mHeaderView.setOnClickListener(headerFooterOnClickListener); 715 mFooterView.setOnClickListener(headerFooterOnClickListener); 716 mAgendaListView.addFooterView(mFooterView); 717 mDoneSettingUpHeaderFooter = true; 718 } 719 synchronized (mQueryQueue) { 720 int totalAgendaRangeStart = -1; 721 int totalAgendaRangeEnd = -1; 722 723 if (cursorSize != 0) { 724 // Remove the query that just completed 725 QuerySpec x = mQueryQueue.poll(); 726 if (BASICLOG && !x.equals(data)) { 727 Log.e(TAG, "onQueryComplete - cookie != head of queue"); 728 } 729 mEmptyCursorCount = 0; 730 if (data.queryType == QUERY_TYPE_NEWER) { 731 mNewerRequestsProcessed++; 732 } else if (data.queryType == QUERY_TYPE_OLDER) { 733 mOlderRequestsProcessed++; 734 } 735 736 totalAgendaRangeStart = mAdapterInfos.getFirst().start; 737 totalAgendaRangeEnd = mAdapterInfos.getLast().end; 738 } else { // CursorSize == 0 739 QuerySpec querySpec = mQueryQueue.peek(); 740 741 // Update Adapter Info with new start and end date range 742 if (!mAdapterInfos.isEmpty()) { 743 DayAdapterInfo first = mAdapterInfos.getFirst(); 744 DayAdapterInfo last = mAdapterInfos.getLast(); 745 746 if (first.start - 1 <= querySpec.end && querySpec.start < first.start) { 747 first.start = querySpec.start; 748 } 749 750 if (querySpec.start <= last.end + 1 && last.end < querySpec.end) { 751 last.end = querySpec.end; 752 } 753 754 totalAgendaRangeStart = first.start; 755 totalAgendaRangeEnd = last.end; 756 } else { 757 totalAgendaRangeStart = querySpec.start; 758 totalAgendaRangeEnd = querySpec.end; 759 } 760 761 // Update query specification with expanded search range 762 // and maybe rerun query 763 switch (querySpec.queryType) { 764 case QUERY_TYPE_OLDER: 765 totalAgendaRangeStart = querySpec.start; 766 querySpec.start -= MAX_QUERY_DURATION; 767 break; 768 case QUERY_TYPE_NEWER: 769 totalAgendaRangeEnd = querySpec.end; 770 querySpec.end += MAX_QUERY_DURATION; 771 break; 772 case QUERY_TYPE_CLEAN: 773 totalAgendaRangeStart = querySpec.start; 774 totalAgendaRangeEnd = querySpec.end; 775 querySpec.start -= MAX_QUERY_DURATION / 2; 776 querySpec.end += MAX_QUERY_DURATION / 2; 777 break; 778 } 779 780 if (++mEmptyCursorCount > RETRIES_ON_NO_DATA) { 781 // Nothing in the cursor again. Dropping query 782 mQueryQueue.poll(); 783 } 784 } 785 786 updateHeaderFooter(totalAgendaRangeStart, totalAgendaRangeEnd); 787 788 // Fire off the next query if any 789 Iterator<QuerySpec> it = mQueryQueue.iterator(); 790 while (it.hasNext()) { 791 QuerySpec queryData = it.next(); 792 if (!isInRange(queryData.start, queryData.end)) { 793 // Query accepted 794 if (DEBUGLOG) Log.e(TAG, "Query accepted. QueueSize:" + mQueryQueue.size()); 795 doQuery(queryData); 796 break; 797 } else { 798 // Query rejected 799 it.remove(); 800 if (DEBUGLOG) Log.e(TAG, "Query rejected. QueueSize:" + mQueryQueue.size()); 801 } 802 } 803 } 804 if (BASICLOG) { 805 for (DayAdapterInfo info3 : mAdapterInfos) { 806 Log.e(TAG, "> " + info3.toString()); 807 } 808 } 809 } 810 811 /* 812 * Update the adapter info array with a the new cursor. Close out old 813 * cursors as needed. 814 * 815 * @return number of rows removed from the beginning 816 */ 817 private int processNewCursor(QuerySpec data, Cursor cursor) { 818 synchronized (mAdapterInfos) { 819 // Remove adapter info's from adapterInfos as needed 820 DayAdapterInfo info = pruneAdapterInfo(data.queryType); 821 int listPositionOffset = 0; 822 if (info == null) { 823 info = new DayAdapterInfo(mContext); 824 } else { 825 if (DEBUGLOG) 826 Log.e(TAG, "processNewCursor listPositionOffsetA=" 827 + -info.size); 828 listPositionOffset = -info.size; 829 } 830 831 // Setup adapter info 832 info.start = data.start; 833 info.end = data.end; 834 info.cursor = cursor; 835 info.dayAdapter.changeCursor(info); 836 info.size = info.dayAdapter.getCount(); 837 838 // Insert into adapterInfos 839 if (mAdapterInfos.isEmpty() 840 || data.end <= mAdapterInfos.getFirst().start) { 841 mAdapterInfos.addFirst(info); 842 listPositionOffset += info.size; 843 } else if (BASICLOG && data.start < mAdapterInfos.getLast().end) { 844 mAdapterInfos.addLast(info); 845 for (DayAdapterInfo info2 : mAdapterInfos) { 846 Log.e("========== BUG ==", info2.toString()); 847 } 848 } else { 849 mAdapterInfos.addLast(info); 850 } 851 852 // Update offsets in adapterInfos 853 mRowCount = 0; 854 for (DayAdapterInfo info3 : mAdapterInfos) { 855 info3.offset = mRowCount; 856 mRowCount += info3.size; 857 } 858 mLastUsedInfo = null; 859 860 return listPositionOffset; 861 } 862 } 863 } 864 865 static String getViewTitle(View x) { 866 String title = ""; 867 if (x != null) { 868 Object yy = x.getTag(); 869 if (yy instanceof AgendaAdapter.ViewHolder) { 870 TextView tv = ((AgendaAdapter.ViewHolder) yy).title; 871 if (tv != null) { 872 title = (String) tv.getText(); 873 } 874 } else if (yy != null) { 875 TextView dateView = ((AgendaByDayAdapter.ViewHolder) yy).dateView; 876 if (dateView != null) { 877 title = (String) dateView.getText(); 878 } 879 } 880 } 881 return title; 882 } 883 884 public void setHideDeclinedEvents(boolean hideDeclined) { 885 mHideDeclined = hideDeclined; 886 } 887 } 888
