offline.js

   1 var SCHEMA_VERSION = 10;
   2
   3 var offline_mode = false;
   4 var store = false;
   5 var localServer = false;
   6 var db = false;
   7
   8 function view_offline(id, feed_id) {
   9         try {
  10
  11                 enableHotkeys();
  12                 showArticleInHeadlines(id);
  13
  14                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
  15
  16                 var rs = db.execute("SELECT * FROM articles WHERE id = ?", [id]);
  17
  18                 if (rs.isValidRow()) {
  19
  20                         var tmp = "<div class=\"postReply\">";
  21
  22                         tmp += "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" "+
  23                                 "onmouseout=\"enable_resize(false)\">";
  24
  25                         tmp += "<div class=\"postDate\">"+rs.fieldByName("updated")+"</div>";
  26
  27                         if (rs.fieldByName("link") != "") {
  28                                 tmp += "<div clear='both'><a target=\"_blank\" "+
  29                                         "href=\"" + rs.fieldByName("link") + "\">" +
  30                                         rs.fieldByName("title") + "</a></div>";
  31                         } else {
  32                                 tmp += "<div clear='both'>" + rs.fieldByName("title") + "</div>";
  33                         }
  34
  35 /*                      tmp += "<div style='float : right'> "+
  36                                 "<img src='images/tag.png' class='tagsPic' alt='Tags' title='Tags'>";
  37                         tmp += rs.fieldByName("tags");
  38                         tmp += "</div>"; */
  39
  40 /*                      tmp += "<div clear='both'>"+
  41                                 "<a target=\"_blank\" "+
  42                                         "href=\"" + rs.fieldByName("comments") + "\">" +
  43                                         __("comments") + "</a></div>"; */
  44
  45                         tmp += "</div>";
  46
  47                         tmp += "<div class=\"postContent\">"
  48                         tmp += rs.fieldByName("content");
  49                         tmp += "</div>";
  50
  51                         tmp += "</div>";
  52
  53                         render_article(tmp);
  54                         update_local_feedlist_counters();
  55                 }
  56
  57                 rs.close();
  58
  59                 return false;
  60
  61         } catch (e) {
  62                 exception_error("view_offline", e);
  63         }
  64 }
  65
  66 function viewfeed_offline(feed_id, subop, is_cat, subop_param, skip_history, offset) {
  67         try {
  68                 notify('');
  69
  70                 if (!offset) offset = 0;
  71
  72                 if (offset > 0) {
  73                         _feed_cur_page = parseInt(offset);
  74                         if (_infscroll_request_sent) {
  75                                 return;
  76                         }
  77                 } else {
  78                         _feed_cur_page = 0;
  79                         _infscroll_disable = 0;
  80                 }
  81
  82                 if (getActiveFeedId() != feed_id) {
  83                         _feed_cur_page = 0;
  84                         active_post_id = 0;
  85                         _infscroll_disable = 0;
  86                 }
  87
  88                 loading_set_progress(100);
  89
  90                 clean_feed_selections();
  91
  92                 setActiveFeedId(feed_id, is_cat);
  93
  94                 if (!is_cat) {
  95                         var feedr = document.getElementById("FEEDR-" + feed_id);
  96                         if (feedr && !feedr.className.match("Selected")) {
  97                                 feedr.className = feedr.className + "Selected";
  98                         }
  99                 } else {
 100                         var feedr = document.getElementById("FCAT-" + feed_id);
 101                         if (feedr && !feedr.className.match("Selected")) {
 102                                 feedr.className = feedr.className + "Selected";
 103                         }
 104                 }
 105
 106                 if (subop == "MarkAllRead") {
 107                         catchup_local_feed(feed_id, is_cat);
 108                 }
 109
 110                 disableContainerChildren("headlinesToolbar", false);
 111                 Form.enable("main_toolbar_form");
 112
 113                 var f = document.getElementById("headlines-frame");
 114                 try {
 115                         if (reply.offset == 0) {
 116                                 debug("resetting headlines scrollTop");
 117                                 f.scrollTop = 0;
 118                         }
 119                 } catch (e) { };
 120
 121
 122                 var tmp = "";
 123                 var feed_title = "";
 124
 125                 if (is_cat) {
 126                         feed_title = get_local_category_title(feed_id);
 127                 } else {
 128                         feed_title = get_local_feed_title(feed_id);
 129                 }
 130
 131                 if (feed_title) {
 132
 133                         if (offset == 0) {
 134                                 tmp += "<div id=\"headlinesContainer\">";
 135
 136                                 tmp += "<div class=\"headlinesSubToolbar\">";
 137                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 138                                 tmp += feed_title;
 139                                 tmp += "</div>";
 140
 141                                 var sel_all_link;
 142                                 var sel_unread_link;
 143                                 var sel_none_link;
 144                                 var sel_inv_link;
 145
 146                                 if (document.getElementById("content-frame")) {
 147                                         sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
 148                                         sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
 149                                         sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
 150                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 151                                 } else {
 152                                         sel_all_link = "javascript:cdmSelectArticles('all')";
 153                                         sel_unread_link = "javascript:cdmSelectArticles('unread')";
 154                                         sel_none_link = "javascript:cdmSelectArticles('none')";
 155                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 156                                 }
 157
 158                                 tmp += __('Select:')+
 159                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 160                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 161                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 162                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 163
 164                                 tmp += "&nbsp;&nbsp;";
 165
 166                                 tmp += "</div>";
 167
 168                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 169                                 if (document.getElementById("content-frame")) {
 170                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 171                                 }
 172
 173                         }
 174
 175                         var limit = 30;
 176
 177                         var toolbar_form = document.forms["main_toolbar_form"];
 178
 179                         var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 180                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 181
 182                         var limit_qpart = "";
 183                         var strategy_qpart = "";
 184                         var mode_qpart = "";
 185                         var offset_qpart = "";
 186
 187                         if (limit != 0) {
 188                                 limit_qpart = "LIMIT " + limit;
 189                         }
 190
 191                         if (view_mode == "all_articles") {
 192                                 mode_qpart = "1";
 193                         } else if (view_mode == "adaptive") {
 194                                 if (is_cat && get_local_category_unread(feed_id) ||
 195                                         get_local_feed_unread(feed_id) > 0) {
 196                                                 mode_qpart = "unread = 1";
 197                                 } else {
 198                                         mode_qpart = "1";
 199                                 }
 200
 201                         } else if (view_mode == "marked") {
 202                                 mode_qpart = "marked = 1";
 203                         } else if (view_mode == "unread") {
 204                                 mode_qpart = "unread = 1";
 205                         } else {
 206                                 mode_qpart = "1";
 207                         }
 208
 209                         var ext_tables_qpart = "";
 210
 211                         if (is_cat) {
 212                                 if (feed_id >= 0) {
 213                                         strategy_qpart = "cat_id = " + feed_id;
 214                                 } else if (feed_id == -2) {
 215                                         strategy_qpart = "article_labels.id = articles.id";
 216                                         ext_tables_qpart = ",article_labels";
 217                                 }
 218                         } else if (feed_id > 0) {
 219                                 strategy_qpart = "feed_id = " + feed_id;
 220                         } else if (feed_id == -1) {
 221                                 strategy_qpart = "marked = 1";
 222                         } else if (feed_id == -4) {
 223                                 strategy_qpart = "1";
 224                         } else if (feed_id < -10) {
 225                                 var label_id = -11 - feed_id;
 226                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 227                                 ext_tables_qpart = ",article_labels";
 228                         }
 229
 230                         if (offset > 0) {
 231                                 offset_qpart = "OFFSET " + (offset*30);
 232                         } else {
 233                                 offset_qpart = "";
 234                         }
 235
 236                         var query = "SELECT *,feeds.title AS feed_title "+
 237                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 238                                 "WHERE " +
 239                                 "cat_id = categories.id AND " +
 240                                 "feed_id = feeds.id AND " +
 241                                 strategy_qpart +
 242                                 " AND " + mode_qpart +
 243                                 " ORDER BY updated DESC "+
 244                                 limit_qpart + " " +
 245                                 offset_qpart;
 246
 247                         var rs = db.execute(query);
 248
 249                         var line_num = offset*30;
 250
 251                         var real_feed_id = feed_id;
 252
 253                         while (rs.isValidRow()) {
 254
 255                                 var id = rs.fieldByName("id");
 256                                 var feed_id = rs.fieldByName("feed_id");
 257
 258                                 var entry_feed_title = false;
 259
 260                                 if (real_feed_id < 0 || is_cat) {
 261                                         entry_feed_title = rs.fieldByName("feed_title");
 262                                 }
 263
 264                                 var marked_pic;
 265
 266                                 var row_class = (line_num % 2) ? "even" : "odd";
 267
 268                                 if (rs.fieldByName("unread") == "1") {
 269                                         row_class += "Unread";
 270                                 }
 271
 272                                 var labels = get_local_article_labels(id);
 273
 274                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 275                                 labels_str += format_article_labels(labels, id);
 276                                 labels_str += "</span>";
 277
 278                                 if (rs.fieldByName("marked") == "1") {
 279                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 280                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 281                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 282                                 } else {
 283                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 284                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 285                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 286                                 }
 287
 288                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 289                                         "onmouseout='postMouseOut($id)'";
 290
 291                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 292                                                 100);
 293
 294                                 if (document.getElementById("content-frame")) {
 295
 296                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 297
 298                                         tmp += "<td class='hlUpdPic'> </td>";
 299
 300                                         tmp += "<td class='hlSelectRow'>"+
 301                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 302
 303                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 304
 305                                         tmp += "<td onclick='view("+id+","+feed_id+")' "+
 306                                                 "class='hlContent' valign='middle'>";
 307
 308                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 309                                                 rs.fieldByName("link") + "\"" +
 310                                                 "onclick=\"return view("+id+","+feed_id+");\">"+
 311                                                 rs.fieldByName("title");
 312
 313                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 314
 315                                         tmp += "</a>";
 316
 317                                         tmp += labels_str;
 318
 319                                         if (entry_feed_title) {
 320                                                 tmp += " <span class=\"hlFeed\">"+
 321                                                         "(<a href='javascript:viewfeed("+feed_id+
 322                                                         ")'>"+entry_feed_title+"</a>)</span>";
 323                                         }
 324
 325                                         tmp += "</td>";
 326
 327                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
 328                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 329                                                 "</nobr></td>";
 330
 331                                         tmp += "</tr>";
 332                                 } else {
 333
 334                                         var add_class = "";
 335
 336                                         if (rs.fieldByName("unread") == "1") {
 337                                                 add_class = "Unread";
 338                                         }
 339
 340                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 341                                                 mouseover_attrs+"'>";
 342
 343                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 344                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 345                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 346                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 347
 348                                         tmp += "<div class=\"cdmHeader\">";
 349                                         tmp += "<div class=\"articleUpdated\">"+
 350                                                 rs.fieldByName("updated").substring(0,16)+
 351                                                 " "+cdm_feed_icon+"</div>";
 352
 353                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 354                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 355                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 356                                                 "\">"+rs.fieldByName("title")+"</a>";
 357
 358                                         tmp += labels_str;
 359
 360                                         if (entry_feed_title) {
 361                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 362                                                         ")'>"+entry_feed_title+"</a>)";
 363                                         }
 364
 365                                         tmp += "</span></div>";
 366
 367                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 368                                                 "id=\"CICD-"+id+"\">";
 369                                         tmp += rs.fieldByName("content");
 370                                         tmp += "<br clear='both'>"
 371                                         tmp += "</div>";
 372
 373                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 374                                         tmp += __("Select:")+
 375                                                 " <input type=\"checkbox\" "+
 376                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 377                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 378
 379                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 380
 381 /*                                      tmp += "<span class='s1'>"+
 382                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 383                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 384                                                 "</span>"; */
 385
 386                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 387                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 388                                                 "Unread</a></span>";
 389                                         tmp += "</div>";
 390
 391                                         tmp += "</div>";
 392                                 }
 393
 394                                 rs.next();
 395                                 line_num++;
 396                         }
 397
 398                         if (line_num - offset*30 < 30) {
 399                                 _infscroll_disable = 1;
 400                         }
 401
 402                         rs.close();
 403
 404                         if (offset == 0) {
 405                                 tmp += "</table>";
 406
 407                                 if (line_num - offset*30 == 0) {
 408                                         tmp += "<div class='whiteBox'>" +
 409                                                 __("No articles found to display.") +
 410                                                 "</div>";
 411                                 }
 412                                 tmp += "</div></div>";
 413                         }
 414
 415                         if (offset == 0) {
 416                                 var container = document.getElementById("headlines-frame");
 417                                 container.innerHTML = tmp;
 418                         } else {
 419                                 var ids = getSelectedArticleIds2();
 420
 421                                 var container = document.getElementById("headlinesList");
 422                                 container.innerHTML = container.innerHTML + tmp;
 423
 424                                 for (var i = 0; i < ids.length; i++) {
 425                                         markHeadline(ids[i]);
 426                                 }
 427                         }
 428                 }
 429
 430                 remove_splash();
 431
 432                 _infscroll_request_sent = 0;
 433
 434         } catch (e) {
 435                 exception_error("viewfeed_offline", e);
 436         }
 437 }
 438
 439 function render_offline_feedlist() {
 440         try {
 441                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 442
 443                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 444
 445                 var unread = get_local_feed_unread(-4);
 446
 447                 global_unread = unread;
 448                 updateTitle();
 449
 450                 if (cats_enabled) {
 451                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 452                 }
 453
 454                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 455                         "images/tag.png");
 456
 457                 var unread = get_local_feed_unread(-1);
 458
 459                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 460                         "images/mark_set.png");
 461
 462                 if (cats_enabled) {
 463                         tmp += "</ul></li>";
 464                 } else {
 465                         tmp += "<li><hr/></li>";
 466                 }
 467
 468                 if (cats_enabled) {
 469                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 470                 }
 471
 472                 var rs = db.execute("SELECT id,caption "+
 473                         "FROM labels "+
 474                         "ORDER BY caption");
 475
 476                 while (rs.isValidRow()) {
 477                         var id = -11 - parseInt(rs.field(0));
 478                         var caption = rs.field(1);
 479                         var unread = get_local_feed_unread(id);
 480
 481                         tmp += printFeedEntry(id, caption, "feed", unread,
 482                                 "images/label.png");
 483
 484                         rs.next();
 485                 }
 486
 487                 rs.close();
 488
 489                 if (cats_enabled) {
 490                         tmp += "</ul></li>";
 491                 } else {
 492                         tmp += "<li><hr/></li>";
 493                 }
 494
 495 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 496                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 497                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 498                         "ORDER BY feeds.title"); */
 499
 500                 var order_by = "feeds.title";
 501
 502                 if (cats_enabled) order_by = "categories.title," + order_by;
 503
 504                 var rs = db.execute("SELECT "+
 505                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 506                         "FROM feeds,categories WHERE cat_id = categories.id "+
 507                         "ORDER BY "+order_by);
 508
 509                 var tmp_cat_id = -1;
 510
 511                 while (rs.isValidRow()) {
 512
 513                         var id = rs.field(0);
 514                         var title = rs.field(1);
 515                         var has_icon = rs.field(2);
 516                         var unread = get_local_feed_unread(id);
 517                         var cat_id = rs.field(3);
 518                         var cat_hidden = rs.field(4);
 519
 520                         if (cat_id != tmp_cat_id && cats_enabled) {
 521                                 if (tmp_cat_id != -1) {
 522                                         tmp += "</ul></li>";
 523                                 }
 524                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 525                                 tmp_cat_id = cat_id;
 526                         }
 527
 528                         var icon = "";
 529
 530                         if (has_icon) {
 531                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 532                         }
 533
 534                         var feed_icon = "";
 535
 536                         var row_class = "feed";
 537
 538                         if (unread > 0) {
 539                                 row_class += "Unread";
 540                                 fctr_class = "feedCtrHasUnread";
 541                         } else {
 542                                 fctr_class = "feedCtrNoUnread";
 543                         }
 544
 545                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 546
 547                         rs.next();
 548                 }
 549
 550                 rs.close();
 551
 552                 if (cats_enabled) {
 553                         tmp += "</ul>";
 554                 }
 555
 556                 tmp += "</ul>";
 557
 558                 render_feedlist(tmp);
 559         } catch (e) {
 560                 exception_error("render_offline_feedlist", e);
 561         }
 562 }
 563
 564 function init_offline() {
 565         try {
 566                 offline_mode = true;
 567
 568                 Element.hide("dispSwitchPrompt");
 569                 Element.hide("feedBrowserPrompt");
 570
 571                 Element.hide("topLinksOnline");
 572                 Element.show("topLinksOffline");
 573
 574                 var tb_form = document.getElementById("main_toolbar_form");
 575                 Element.hide(tb_form.update);
 576
 577                 var chooser = document.getElementById("quickMenuChooser");
 578                 chooser.disabled = true;
 579
 580                 var rs = db.execute("SELECT key, value FROM init_params");
 581
 582                 while (rs.isValidRow()) {
 583                         init_params[rs.field(0)] = rs.field(1);
 584                         rs.next();
 585                 }
 586
 587                 rs.close();
 588
 589                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 590
 591                 var num_feeds = 0;
 592
 593                 if (rs.isValidRow()) {
 594                         num_feeds = rs.field(0);
 595                 }
 596
 597                 rs.close();
 598
 599                 if (num_feeds == 0) {
 600                         remove_splash();
 601                         return fatalError(0,
 602                                 __("Data for offline browsing has not been downloaded yet."));
 603                 }
 604
 605                 render_offline_feedlist();
 606                 init_second_stage();
 607                 window.setTimeout("viewfeed(-4)", 50);
 608
 609         } catch (e) {
 610                 exception_error("init_offline", e);
 611         }
 612 }
 613
 614 function offline_download_parse(stage, transport) {
 615         try {
 616                 if (transport.responseXML) {
 617
 618                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 619
 620                         if (sync_ok.length > 0) {
 621                                 for (var i = 0; i < sync_ok.length; i++) {
 622                                         var id = sync_ok[i].getAttribute("id");
 623                                         if (id) {
 624                                                 debug("synced offline info for id " + id);
 625                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 626                                         }
 627                                 }
 628                         }
 629
 630                         if (stage == 0) {
 631
 632                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 633
 634                                 if (feeds.length > 0) {
 635                                         db.execute("DELETE FROM feeds");
 636                                 }
 637
 638                                 for (var i = 0; i < feeds.length; i++) {
 639                                         var id = feeds[i].getAttribute("id");
 640                                         var has_icon = feeds[i].getAttribute("has_icon");
 641                                         var title = feeds[i].firstChild.nodeValue;
 642                                         var cat_id = feeds[i].getAttribute("cat_id");
 643
 644                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 645                                                 "VALUES (?,?,?,?)",
 646                                                 [id, title, has_icon, cat_id]);
 647                                 }
 648
 649                                 var cats = transport.responseXML.getElementsByTagName("category");
 650
 651                                 if (feeds.length > 0) {
 652                                         db.execute("DELETE FROM categories");
 653                                 }
 654
 655                                 for (var i = 0; i < cats.length; i++) {
 656                                         var id = cats[i].getAttribute("id");
 657                                         var collapsed = cats[i].getAttribute("collapsed");
 658                                         var title = cats[i].firstChild.nodeValue;
 659
 660                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 661                                                 "VALUES (?,?,?)",
 662                                                 [id, title, collapsed]);
 663                                 }
 664
 665                                 var labels = transport.responseXML.getElementsByTagName("label");
 666
 667                                 if (labels.length > 0) {
 668                                         db.execute("DELETE FROM labels");
 669                                 }
 670
 671                                 for (var i = 0; i < labels.length; i++) {
 672                                         var id = labels[i].getAttribute("id");
 673                                         var fg_color = labels[i].getAttribute("fg_color");
 674                                         var bg_color = labels[i].getAttribute("bg_color");
 675                                         var caption = labels[i].firstChild.nodeValue;
 676
 677                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 678                                                 "VALUES (?,?,?,?)",
 679                                                 [id, caption, fg_color, bg_color]);
 680                                 }
 681
 682                                 window.setTimeout("update_offline_data("+(stage+1)+")", 10*1000);
 683                         } else {
 684
 685                                 var articles = transport.responseXML.getElementsByTagName("article");
 686
 687                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 688
 689                                 if (limit) {
 690                                         limit = limit.getAttribute("value");
 691                                 } else {
 692                                         limit = 0;
 693                                 }
 694
 695                                 var articles_found = 0;
 696
 697                                 for (var i = 0; i < articles.length; i++) {
 698                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 699                                         articles_found++;
 700                                         if (a) {
 701
 702                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 703
 704                                                 db.execute("INSERT INTO articles "+
 705                                                 "(id, feed_id, title, link, guid, updated, content, "+
 706                                                         "unread, marked, tags, comments) "+
 707                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 708                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 709                                                                 a.content, a.unread, a.marked, a.tags,
 710                                                                 a.comments]);
 711
 712                                                 if (a.labels.length > 0) {
 713                                                         for (var j = 0; j < a.labels.length; j++) {
 714                                                                 label_local_add_article(a.id, a.labels[j][0]);
 715                                                         }
 716                                                 }
 717
 718                                         }
 719                                 }
 720
 721                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 722
 723                                 var has_sync_data = has_local_sync_data();
 724
 725                                 if (articles_found >= limit || has_sync_data) {
 726                                         window.setTimeout("update_offline_data("+(stage+1)+")", 10*1000);
 727                                         debug("<b>update_offline_data: done " + stage + " HSD: " +
 728                                                 has_sync_data + "</b>");
 729                                 } else {
 730                                         window.setTimeout("update_offline_data(0)", 180*1000);
 731                                         debug("update_offline_data: finished");
 732
 733                                         db.execute("DELETE FROM articles WHERE "+
 734                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 735
 736                                 }
 737                         }
 738
 739                         update_local_sync_data();
 740
 741 //                      notify('');
 742
 743                 }
 744         } catch (e) {
 745                 exception_error("offline_download_parse", e);
 746         }
 747 }
 748
 749 function update_offline_data(stage) {
 750         try {
 751
 752                 if (!stage) stage = 0;
 753                 if (offline_mode) return;
 754
 755                 debug("update_offline_data: stage " + stage);
 756
 757 //              notify_progress("Updating offline data... (" + stage +")", true);
 758
 759                 var query = "backend.php?op=rpc&subop=download&stage=" + stage;
 760
 761                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 762
 763                 if (rs.isValidRow() && rs.field(0)) {
 764                         var offline_dl_max_id = rs.field(0);
 765                         var offline_dl_min_id = rs.field(1);
 766
 767                         query = query + "&cidt=" + offline_dl_max_id;
 768                         query = query + "&cidb=" + offline_dl_min_id;
 769                 }
 770
 771                 rs.close();
 772
 773                 var to_sync = prepare_local_sync_data();
 774
 775                 if (to_sync != "") {
 776                         to_sync = "?sync=" + param_escape(to_sync);
 777                 }
 778
 779                 debug(query + "/" + to_sync);
 780
 781                 new Ajax.Request(query, {
 782                         parameters: to_sync,
 783                         onComplete: function(transport) {
 784                                 offline_download_parse(stage, transport);
 785                         } });
 786
 787         } catch (e) {
 788                 exception_error("initiate_offline_download", e);
 789         }
 790 }
 791
 792 function set_feedlist_counter(id, ctr, is_cat) {
 793         try {
 794
 795                 var feedctr = document.getElementById("FEEDCTR-" + id);
 796                 var feedu = document.getElementById("FEEDU-" + id);
 797                 var feedr = document.getElementById("FEEDR-" + id);
 798
 799                 if (is_cat) {
 800                         var catctr = document.getElementById("FCATCTR-" + id);
 801                         if (catctr) {
 802                                 catctr.innerHTML = "(" + ctr + ")";
 803                                 if (ctr > 0) {
 804                                         catctr.className = "catCtrHasUnread";
 805                                 } else {
 806                                         catctr.className = "catCtrNoUnread";
 807                                 }
 808                         }
 809                 } else if (feedctr && feedu && feedr) {
 810
 811                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 812
 813                         feedu.innerHTML = ctr;
 814
 815                         if (ctr > 0) {
 816                                 feedctr.className = "feedCtrHasUnread";
 817                                 if (!feedr.className.match("Unread")) {
 818                                         var is_selected = feedr.className.match("Selected");
 819
 820                                         feedr.className = feedr.className.replace("Selected", "");
 821                                         feedr.className = feedr.className.replace("Unread", "");
 822
 823                                         feedr.className = feedr.className + "Unread";
 824
 825                                         if (is_selected) {
 826                                                 feedr.className = feedr.className + "Selected";
 827                                         }
 828
 829                                 }
 830
 831                                 if (row_needs_hl) {
 832                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 833                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 834                                 }
 835                         } else {
 836                                 feedctr.className = "feedCtrNoUnread";
 837                                 feedr.className = feedr.className.replace("Unread", "");
 838                         }
 839                 }
 840
 841         } catch (e) {
 842                 exception_error("set_feedlist_counter", e);
 843         }
 844 }
 845
 846 function update_local_feedlist_counters() {
 847         try {
 848                 if (!offline_mode || !db) return;
 849
 850 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 851                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 852                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 853                         "ORDER BY feeds.title"); */
 854
 855                 var rs = db.execute("SELECT id FROM feeds "+
 856                         "ORDER BY title");
 857
 858                 while (rs.isValidRow()) {
 859                         var id = rs.field(0);
 860                         var ctr = get_local_feed_unread(id);
 861                         set_feedlist_counter(id, ctr, false);
 862                         rs.next();
 863                 }
 864
 865                 rs.close();
 866
 867                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 868                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 869
 870                 while (rs.isValidRow()) {
 871                         var id = rs.field(0);
 872                         var ctr = rs.field(1);
 873                         set_feedlist_counter(id, ctr, true);
 874                         rs.next();
 875                 }
 876
 877                 rs.close();
 878
 879                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 880
 881                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 882                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 883
 884                 var rs = db.execute("SELECT id FROM labels");
 885
 886                 while (rs.isValidRow()) {
 887                         var id = -11 - rs.field(0);
 888                         var ctr = get_local_feed_unread(id);
 889                         set_feedlist_counter(id, ctr, false);
 890                         rs.next();
 891                 }
 892
 893                 rs.close();
 894
 895                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 896
 897                 global_unread = get_local_feed_unread(-4);
 898                 updateTitle();
 899
 900         } catch (e) {
 901                 exception_error("update_local_feedlist_counters", e);
 902         }
 903 }
 904
 905 function get_local_feed_unread(id) {
 906         try {
 907                 var rs;
 908
 909                 if (id == -4) {
 910                         rs = db.execute("SELECT SUM(unread) FROM articles");
 911                 } else if (id == -1) {
 912                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
 913                 } else if (id > 0) {
 914                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
 915                 } else if (id < -10) {
 916                         var label_id = -11 - id;
 917                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
 918                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
 919                 }
 920
 921                 var a = false;
 922
 923                 if (rs.isValidRow()) {
 924                         a = rs.field(0);
 925                 } else {
 926                         a = 0;
 927                 }
 928
 929                 rs.close();
 930
 931                 return a;
 932
 933         } catch (e) {
 934                 exception_error("get_local_feed_unread", e);
 935         }
 936 }
 937
 938 function init_gears() {
 939         try {
 940
 941                 if (window.google && google.gears) {
 942                         localServer = google.gears.factory.create("beta.localserver");
 943                         store = localServer.createManagedStore("tt-rss");
 944                         db = google.gears.factory.create('beta.database');
 945                         db.open('tt-rss');
 946
 947                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
 948
 949                         var rs = db.execute("SELECT schema_version FROM version");
 950
 951                         var version = "";
 952
 953                         if (rs.isValidRow()) {
 954                                 version = rs.field(0);
 955                         }
 956
 957                         rs.close();
 958
 959                         if (version != SCHEMA_VERSION) {
 960                                 db.execute("DROP TABLE IF EXISTS init_params");
 961                                 db.execute("DROP TABLE IF EXISTS cache");
 962                                 db.execute("DROP TABLE IF EXISTS feeds");
 963                                 db.execute("DROP TABLE IF EXISTS categories");
 964                                 db.execute("DROP TABLE IF EXISTS labels");
 965                                 db.execute("DROP TABLE IF EXISTS article_labels");
 966                                 db.execute("DROP TABLE IF EXISTS articles");
 967                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
 968                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
 969                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
 970                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
 971                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
 972                                 db.execute("DROP TABLE IF EXISTS version");
 973                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
 974                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
 975                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
 976                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
 977                                 db.execute("DROP TABLE IF EXISTS syncdata");
 978                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
 979                                         [SCHEMA_VERSION]);
 980                         }
 981
 982                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
 983
 984                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
 985                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
 986                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
 987                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
 988                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
 989                         db.execute("CREATE TABLE IF NOT EXISTS articles (id integer, feed_id integer, title text, link text, guid text, updated timestamp, content text, tags text, unread integer, marked integer, added text, modified timestamp, comments text)");
 990
 991                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
 992                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
 993                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
 994                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
 995                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
 996
 997                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
 998
 999                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1000
1001                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1002                                 "UPDATE OF unread ON articles "+
1003                                 "BEGIN "+
1004                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1005                                 "WHERE id = OLD.id AND "+
1006                                 "OLD.unread != NEW.unread;"+
1007                                 "END;");
1008
1009                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1010                                 "UPDATE OF marked ON articles "+
1011                                 "BEGIN "+
1012                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1013                                 "WHERE id = OLD.id;"+
1014                                 "END;");
1015
1016                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1017                                 "DELETE ON articles "+
1018                                 "BEGIN "+
1019                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1020                                 "END; ");
1021
1022                         init_local_sync_data();
1023
1024                         Element.show("restartOfflinePic");
1025
1026                 }
1027
1028                 cache_expire();
1029
1030         } catch (e) {
1031                 exception_error("init_gears", e);
1032         }
1033 }
1034
1035 function gotoOffline() {
1036         window.location.href = "tt-rss.php?offline=1";
1037 }
1038
1039 function gotoOnline() {
1040         window.location.href = "tt-rss.php";
1041 }
1042
1043 function local_collapse_cat(id) {
1044         try {
1045                 if (db) {
1046                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1047                                 [id]);
1048                 }
1049         } catch (e) {
1050                 exception_error("local_collapse_cat", e);
1051         }
1052 }
1053
1054 function get_local_category_title(id) {
1055         try {
1056
1057                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1058                 var tmp = "";
1059
1060                 if (rs.isValidRow()) {
1061                         tmp = rs.field(0);
1062                 }
1063
1064                 rs.close();
1065
1066                 return tmp;
1067
1068         } catch (e) {
1069                 exception_error("get_local_category_title", e);
1070         }
1071 }
1072
1073 function get_local_category_unread(id) {
1074         try {
1075                 var rs = false;
1076
1077                 if (id >= 0) {
1078                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1079                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1080                 } else if (id == -2) {
1081                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1082                                 "where article_labels.id = articles.id");
1083                 } else {
1084                         return 0;
1085                 }
1086
1087                 var tmp = 0;
1088
1089                 if (rs.isValidRow()) {
1090                         tmp = rs.field(0);
1091                 }
1092
1093                 rs.close();
1094
1095                 return tmp;
1096
1097         } catch (e) {
1098                 exception_error("get_local_category_unread", e);
1099         }
1100 }
1101
1102 function printCategoryHeader(cat_id, hidden, can_browse) {
1103         try {
1104                 if (hidden == undefined) hidden = false;
1105                 if (can_browse == undefined) can_browse = false;
1106
1107                         var tmp_category = get_local_category_title(cat_id);
1108                         var tmp = "";
1109
1110                         var cat_unread = get_local_category_unread(cat_id);
1111
1112                         var holder_style = "";
1113                         var ellipsis = "";
1114
1115                         if (hidden) {
1116                                 holder_style = "display:none;";
1117                                 ellipsis = "…";
1118                         }
1119
1120                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1121
1122                         var browse_cat_link = "";
1123                         var inner_title_class = "catTitleNL";
1124
1125                         if (can_browse) {
1126                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1127                                 inner_title_class = "catTitle";
1128                         }
1129
1130                         var cat_class = "feedCat";
1131
1132                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1133                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1134                                         " title=\""+__('Click to collapse category')+"\""+
1135                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1136                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1137                                 "\">"+tmp_category+"</span>";
1138
1139                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1140
1141                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1142                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1143
1144                         tmp += "</span>";
1145
1146                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1147                                 "style='"+holder_style+"'>";
1148
1149                         return tmp;
1150         } catch (e) {
1151                 exception_error("printCategoryHeader", e);
1152         }
1153 }
1154
1155 function is_local_cat_collapsed(id) {
1156         try {
1157
1158                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1159                 var cat_hidden = 0;
1160
1161                 if (rs.isValidRow()) {
1162                         cat_hidden = rs.field(0);
1163                 }
1164
1165                 rs.close();
1166
1167                 return cat_hidden == "1";
1168
1169         } catch (e) {
1170                 exception_error("is_local_cat_collapsed", e);
1171         }
1172 }
1173
1174 function get_local_article_labels(id) {
1175         try {
1176                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1177                         "FROM labels, article_labels "+
1178                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1179
1180                 var tmp = new Array();
1181
1182                 while (rs.isValidRow()) {
1183                         var e = new Array();
1184
1185                         e[0] = rs.field(0);
1186                         e[1] = rs.field(1);
1187                         e[2] = rs.field(2);
1188                         e[3] = rs.field(3);
1189
1190                         tmp.push(e);
1191
1192                         rs.next();
1193                 }
1194
1195                 return tmp;
1196
1197         } catch (e) {
1198                 exception_error("get_local_article_labels", e);
1199         }
1200 }
1201
1202 function label_local_add_article(id, label_id) {
1203         try {
1204                 //debug("label_local_add_article " + id + " => " + label_id);
1205
1206                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1207                         "id = ? AND label_id = ?", [id, label_id]);
1208                 var check = rs.field(0);
1209
1210                 if (rs.isValidRow()) {
1211                         var check = rs.field(0);
1212                 }
1213                 rs.close();
1214
1215                 if (check == 0) {
1216                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1217                                 "(?,?)", [id, label_id]);
1218                 }
1219
1220         } catch (e) {
1221                 exception_error("label_local_add_article", e);
1222         }
1223 }
1224
1225 function get_local_feed_title(id) {
1226         try {
1227
1228                 var feed_title = "Unknown feed: " + id;
1229
1230                 if (id > 0) {
1231                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1232
1233                         if (rs.isValidRow()) {
1234                                 feed_title = rs.field(0);
1235                         }
1236
1237                         rs.close();
1238                 } else if (id == -1) {
1239                         feed_title = __("Starred articles");
1240                 } else if (id == -4) {
1241                         feed_title = __("All articles");
1242                 } else if (id < -10) {
1243
1244                         var label_id = -11 - id;
1245
1246                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1247
1248                         if (rs.isValidRow()) {
1249                                 feed_title = rs.field(0);
1250                         }
1251
1252                         rs.close();
1253                 }
1254
1255                 return feed_title;
1256
1257         } catch (e) {
1258                 exception_error("get_local_feed_title", e);
1259         }
1260 }
1261
1262 function format_article_labels(labels, id) {
1263         try {
1264
1265                 var labels_str = "";
1266
1267                 if (!labels) return "";
1268
1269                 for (var i = 0; i < labels.length; i++) {
1270                         var l = labels[i];
1271
1272                         labels_str += "<span class='hlLabelRef' "+
1273                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1274                 }
1275
1276                 return labels_str;
1277
1278         } catch (e) {
1279                 exception_error("format_article_labels", e);
1280         }
1281 }
1282
1283 function init_local_sync_data() {
1284         try {
1285                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1286                 var has_last_online = 0;
1287
1288                 if (rs.isValidRow()) {
1289                         has_last_online = rs.field(0);
1290                 }
1291
1292                 rs.close();
1293
1294                 if (!has_last_online) {
1295                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1296                 }
1297
1298         } catch (e) {
1299                 exception_error("init_local_sync_data", e);
1300
1301         }
1302 }
1303
1304 function has_local_sync_data() {
1305         try {
1306
1307                 var rs = db.execute("SELECT id FROM articles "+
1308                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1309                         "LIMIT 1");
1310
1311                 var tmp = 0;
1312
1313                 if (rs.isValidRow()) {
1314                         tmp = rs.field(0);
1315                 }
1316
1317                 rs.close();
1318
1319                 return tmp != 0;
1320
1321         } catch (e) {
1322                 exception_error("has_local_sync_data", e);
1323         }
1324 }
1325
1326 function prepare_local_sync_data() {
1327         try {
1328                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1329
1330                 var last_online = "";
1331
1332                 if (rs.isValidRow()) {
1333                         last_online = rs.field(0);
1334                 }
1335
1336                 rs.close();
1337
1338                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1339                         "WHERE modified > ? LIMIT 200", [last_online]);
1340
1341                 var tmp = last_online + ";";
1342
1343                 var entries = 0;
1344
1345                 while (rs.isValidRow()) {
1346                         var e = new Array();
1347
1348                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1349                         entries++;
1350
1351                         rs.next();
1352                 }
1353
1354                 rs.close();
1355
1356                 if (entries > 0) {
1357                         return tmp;
1358                 } else {
1359                         return '';
1360                 }
1361
1362         } catch (e) {
1363                 exception_error("prepare_local_sync_data", e);
1364         }
1365 }
1366
1367 function update_local_sync_data() {
1368         try {
1369                 if (db && !offline_mode) {
1370
1371                         var rs = db.execute("SELECT id FROM articles "+
1372                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1373                                         "key = 'last_online') LIMIT 1")
1374
1375                         var f_id = 0;
1376
1377                         if (rs.isValidRow()) {
1378                                 f_id = rs.field(0);
1379                         }
1380
1381                         rs.close();
1382
1383                         /* no pending articles to sync */
1384
1385                         if (f_id == 0) {
1386                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1387                                         "WHERE key = 'last_online'");
1388                         }
1389
1390                 }
1391         } catch (e) {
1392                 exception_error("update_local_sync_data", e);
1393         }
1394 }
1395
1396 function catchup_local_feed(id, is_cat) {
1397         try {
1398                 if (!db) return;
1399
1400                 if (!is_cat) {
1401                         if (id >= 0) {
1402                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1403                         } else if (id == -1) {
1404                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1405                         } else if (id == -4) {
1406                                 db.execute("UPDATE articles SET unread = 0");
1407                         } else if (id < -10) {
1408                                 var label_id = -11-id;
1409
1410                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1411                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1412                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1413                         }
1414                 }
1415
1416                 update_local_feedlist_counters();
1417
1418         } catch (e) {
1419                 exception_error("catchup_local_feed", e);
1420         }
1421 }