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 var articles_synced = 0;
   8 var sync_in_progress = false;
   9 var sync_timer = false;
  10
  11 function view_offline(id, feed_id) {
  12         try {
  13
  14                 enableHotkeys();
  15                 showArticleInHeadlines(id);
  16
  17                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
  18
  19                 var rs = db.execute("SELECT * FROM articles WHERE id = ?", [id]);
  20
  21                 if (rs.isValidRow()) {
  22
  23                         var tmp = "<div class=\"postReply\">";
  24
  25                         tmp += "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" "+
  26                                 "onmouseout=\"enable_resize(false)\">";
  27
  28                         tmp += "<div class=\"postDate\">"+rs.fieldByName("updated")+"</div>";
  29
  30                         if (rs.fieldByName("link") != "") {
  31                                 tmp += "<div clear='both'><a target=\"_blank\" "+
  32                                         "href=\"" + rs.fieldByName("link") + "\">" +
  33                                         rs.fieldByName("title") + "</a></div>";
  34                         } else {
  35                                 tmp += "<div clear='both'>" + rs.fieldByName("title") + "</div>";
  36                         }
  37
  38 /*                      tmp += "<div style='float : right'> "+
  39                                 "<img src='images/tag.png' class='tagsPic' alt='Tags' title='Tags'>";
  40                         tmp += rs.fieldByName("tags");
  41                         tmp += "</div>"; */
  42
  43 /*                      tmp += "<div clear='both'>"+
  44                                 "<a target=\"_blank\" "+
  45                                         "href=\"" + rs.fieldByName("comments") + "\">" +
  46                                         __("comments") + "</a></div>"; */
  47
  48                         tmp += "</div>";
  49
  50                         tmp += "<div class=\"postContent\">"
  51                         tmp += rs.fieldByName("content");
  52                         tmp += "</div>";
  53
  54                         tmp += "</div>";
  55
  56                         render_article(tmp);
  57                         update_local_feedlist_counters();
  58                 }
  59
  60                 rs.close();
  61
  62                 return false;
  63
  64         } catch (e) {
  65                 exception_error("view_offline", e);
  66         }
  67 }
  68
  69 function viewfeed_offline(feed_id, subop, is_cat, subop_param, skip_history, offset) {
  70         try {
  71                 notify('');
  72
  73                 if (!offset) offset = 0;
  74
  75                 if (offset > 0) {
  76                         _feed_cur_page = parseInt(offset);
  77                         if (_infscroll_request_sent) {
  78                                 return;
  79                         }
  80                 } else {
  81                         _feed_cur_page = 0;
  82                         _infscroll_disable = 0;
  83                 }
  84
  85                 if (getActiveFeedId() != feed_id) {
  86                         _feed_cur_page = 0;
  87                         active_post_id = 0;
  88                         _infscroll_disable = 0;
  89                 }
  90
  91                 loading_set_progress(100);
  92
  93                 clean_feed_selections();
  94
  95                 setActiveFeedId(feed_id, is_cat);
  96
  97                 if (!is_cat) {
  98                         var feedr = $("FEEDR-" + feed_id);
  99                         if (feedr && !feedr.className.match("Selected")) {
 100                                 feedr.className = feedr.className + "Selected";
 101                         }
 102                 } else {
 103                         var feedr = $("FCAT-" + feed_id);
 104                         if (feedr && !feedr.className.match("Selected")) {
 105                                 feedr.className = feedr.className + "Selected";
 106                         }
 107                 }
 108
 109                 if (subop == "MarkAllRead") {
 110                         catchup_local_feed(feed_id, is_cat);
 111                 }
 112
 113                 disableContainerChildren("headlinesToolbar", false);
 114                 Form.enable("main_toolbar_form");
 115
 116                 var f = $("headlines-frame");
 117                 try {
 118                         if (reply.offset == 0) {
 119                                 debug("resetting headlines scrollTop");
 120                                 f.scrollTop = 0;
 121                         }
 122                 } catch (e) { };
 123
 124
 125                 var tmp = "";
 126                 var feed_title = "";
 127
 128                 if (is_cat) {
 129                         feed_title = get_local_category_title(feed_id);
 130                 } else {
 131                         feed_title = get_local_feed_title(feed_id);
 132                 }
 133
 134                 if (feed_title) {
 135
 136                         if (offset == 0) {
 137                                 tmp += "<div id=\"headlinesContainer\">";
 138
 139                                 tmp += "<div class=\"headlinesSubToolbar\">";
 140                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 141                                 tmp += feed_title;
 142                                 tmp += "</div>";
 143
 144                                 var sel_all_link;
 145                                 var sel_unread_link;
 146                                 var sel_none_link;
 147                                 var sel_inv_link;
 148
 149                                 if ($("content-frame")) {
 150                                         sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
 151                                         sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
 152                                         sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
 153                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 154                                 } else {
 155                                         sel_all_link = "javascript:cdmSelectArticles('all')";
 156                                         sel_unread_link = "javascript:cdmSelectArticles('unread')";
 157                                         sel_none_link = "javascript:cdmSelectArticles('none')";
 158                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 159                                 }
 160
 161                                 tmp += __('Select:')+
 162                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 163                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 164                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 165                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 166
 167                                 tmp += "&nbsp;&nbsp;";
 168
 169                                 tmp += "<span onmouseover=\"enable_selection(false)\" "+
 170                                         "onmouseout=\"enable_selection(true) \"" +
 171                                         "onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">" +
 172                                         __("Actions...") + "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">" +
 173                                 "</span>";
 174
 175                                 tmp += "<ul id=\"headlineActionsBody\" style=\"display : none\">";
 176
 177                                 var tog_unread_link = "";
 178                                 var tog_marked_link = "";
 179                                 var catchup_sel_link = "";
 180                                 var catchup_feed_link = "";
 181
 182                                 tmp += "<li class=\"insensitive\">"+__('Selection toggle:')+"</li>"+
 183                                 "<li onclick=\""+tog_unread_link+"\">&nbsp;&nbsp;"+__('Unread')+"</li>"+
 184                                 "<li onclick=\""+tog_marked_link+"\">&nbsp;&nbsp;"+__('Starred')+"</li>"+
 185                                 "<li class=\"insensitive\">"+__('Mark as read:')+"</li>"+
 186                                 "<li onclick=\""+catchup_sel_link+"\">&nbsp;&nbsp;"+__('Selection')+"</li>";
 187
 188                                 tmp += "<li onclick=\""+catchup_feed_link+"\">&nbsp;&nbsp;"+__('Entire feed')+
 189                                         "</li>";
 190
 191                                 tmp += "</ul>";
 192
 193                                 tmp += "</div>";
 194
 195                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 196                                 if ($("content-frame")) {
 197                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 198                                 }
 199
 200                         }
 201
 202                         var limit = 30;
 203
 204                         var toolbar_form = document.forms["main_toolbar_form"];
 205
 206                         var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 207                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 208
 209                         var limit_qpart = "";
 210                         var strategy_qpart = "";
 211                         var mode_qpart = "";
 212                         var offset_qpart = "";
 213
 214                         if (limit != 0) {
 215                                 limit_qpart = "LIMIT " + limit;
 216                         }
 217
 218                         if (view_mode == "all_articles") {
 219                                 mode_qpart = "1";
 220                         } else if (view_mode == "adaptive") {
 221                                 if (is_cat && get_local_category_unread(feed_id) ||
 222                                         get_local_feed_unread(feed_id) > 0) {
 223                                                 mode_qpart = "unread = 1";
 224                                 } else {
 225                                         mode_qpart = "1";
 226                                 }
 227
 228                         } else if (view_mode == "marked") {
 229                                 mode_qpart = "marked = 1";
 230                         } else if (view_mode == "unread") {
 231                                 mode_qpart = "unread = 1";
 232                         } else {
 233                                 mode_qpart = "1";
 234                         }
 235
 236                         var ext_tables_qpart = "";
 237
 238                         if (is_cat) {
 239                                 if (feed_id >= 0) {
 240                                         strategy_qpart = "cat_id = " + feed_id;
 241                                 } else if (feed_id == -2) {
 242                                         strategy_qpart = "article_labels.id = articles.id";
 243                                         ext_tables_qpart = ",article_labels";
 244                                 }
 245                         } else if (feed_id > 0) {
 246                                 strategy_qpart = "feed_id = " + feed_id;
 247                         } else if (feed_id == -1) {
 248                                 strategy_qpart = "marked = 1";
 249                         } else if (feed_id == -4) {
 250                                 strategy_qpart = "1";
 251                         } else if (feed_id < -10) {
 252                                 var label_id = -11 - feed_id;
 253                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 254                                 ext_tables_qpart = ",article_labels";
 255                         }
 256
 257                         if (offset > 0) {
 258                                 offset_qpart = "OFFSET " + (offset*30);
 259                         } else {
 260                                 offset_qpart = "";
 261                         }
 262
 263                         var query = "SELECT *,feeds.title AS feed_title "+
 264                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 265                                 "WHERE " +
 266                                 "cat_id = categories.id AND " +
 267                                 "feed_id = feeds.id AND " +
 268                                 strategy_qpart +
 269                                 " AND " + mode_qpart +
 270                                 " ORDER BY updated DESC "+
 271                                 limit_qpart + " " +
 272                                 offset_qpart;
 273
 274                         var rs = db.execute(query);
 275
 276                         var line_num = offset*30;
 277
 278                         var real_feed_id = feed_id;
 279
 280                         while (rs.isValidRow()) {
 281
 282                                 var id = rs.fieldByName("id");
 283                                 var feed_id = rs.fieldByName("feed_id");
 284
 285                                 var entry_feed_title = false;
 286
 287                                 if (real_feed_id < 0 || is_cat) {
 288                                         entry_feed_title = rs.fieldByName("feed_title");
 289                                 }
 290
 291                                 var marked_pic;
 292
 293                                 var row_class = (line_num % 2) ? "even" : "odd";
 294
 295                                 if (rs.fieldByName("unread") == "1") {
 296                                         row_class += "Unread";
 297                                 }
 298
 299                                 var labels = get_local_article_labels(id);
 300
 301                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 302                                 labels_str += format_article_labels(labels, id);
 303                                 labels_str += "</span>";
 304
 305                                 if (rs.fieldByName("marked") == "1") {
 306                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 307                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 308                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 309                                 } else {
 310                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 311                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 312                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 313                                 }
 314
 315                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 316                                         "onmouseout='postMouseOut($id)'";
 317
 318                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 319                                                 100);
 320
 321                                 if ($("content-frame")) {
 322
 323                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 324
 325                                         tmp += "<td class='hlUpdPic'> </td>";
 326
 327                                         tmp += "<td class='hlSelectRow'>"+
 328                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 329
 330                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 331
 332                                         tmp += "<td onclick='view("+id+","+feed_id+")' "+
 333                                                 "class='hlContent' valign='middle'>";
 334
 335                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 336                                                 rs.fieldByName("link") + "\"" +
 337                                                 "onclick=\"return view("+id+","+feed_id+");\">"+
 338                                                 rs.fieldByName("title");
 339
 340                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 341
 342                                         tmp += "</a>";
 343
 344                                         tmp += labels_str;
 345
 346                                         if (entry_feed_title) {
 347                                                 tmp += " <span class=\"hlFeed\">"+
 348                                                         "(<a href='javascript:viewfeed("+feed_id+
 349                                                         ")'>"+entry_feed_title+"</a>)</span>";
 350                                         }
 351
 352                                         tmp += "</td>";
 353
 354                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
 355                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 356                                                 "</nobr></td>";
 357
 358                                         tmp += "</tr>";
 359                                 } else {
 360
 361                                         var add_class = "";
 362
 363                                         if (rs.fieldByName("unread") == "1") {
 364                                                 add_class = "Unread";
 365                                         }
 366
 367                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 368                                                 mouseover_attrs+"'>";
 369
 370                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 371                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 372                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 373                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 374
 375                                         tmp += "<div class=\"cdmHeader\">";
 376                                         tmp += "<div class=\"articleUpdated\">"+
 377                                                 rs.fieldByName("updated").substring(0,16)+
 378                                                 " "+cdm_feed_icon+"</div>";
 379
 380                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 381                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 382                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 383                                                 "\">"+rs.fieldByName("title")+"</a>";
 384
 385                                         tmp += labels_str;
 386
 387                                         if (entry_feed_title) {
 388                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 389                                                         ")'>"+entry_feed_title+"</a>)";
 390                                         }
 391
 392                                         tmp += "</span></div>";
 393
 394                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 395                                                 "id=\"CICD-"+id+"\">";
 396                                         tmp += rs.fieldByName("content");
 397                                         tmp += "<br clear='both'>"
 398                                         tmp += "</div>";
 399
 400                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 401                                         tmp += __("Select:")+
 402                                                 " <input type=\"checkbox\" "+
 403                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 404                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 405
 406                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 407
 408 /*                                      tmp += "<span class='s1'>"+
 409                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 410                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 411                                                 "</span>"; */
 412
 413                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 414                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 415                                                 "Unread</a></span>";
 416                                         tmp += "</div>";
 417
 418                                         tmp += "</div>";
 419                                 }
 420
 421                                 rs.next();
 422                                 line_num++;
 423                         }
 424
 425                         if (line_num - offset*30 < 30) {
 426                                 _infscroll_disable = 1;
 427                         }
 428
 429                         rs.close();
 430
 431                         if (offset == 0) {
 432                                 tmp += "</table>";
 433
 434                                 if (line_num - offset*30 == 0) {
 435                                         tmp += "<div class='whiteBox'>" +
 436                                                 __("No articles found to display.") +
 437                                                 "</div>";
 438                                 }
 439                                 tmp += "</div></div>";
 440                         }
 441
 442                         if (offset == 0) {
 443                                 var container = $("headlines-frame");
 444                                 container.innerHTML = tmp;
 445                         } else {
 446                                 var ids = getSelectedArticleIds2();
 447
 448                                 var container = $("headlinesList");
 449                                 container.innerHTML = container.innerHTML + tmp;
 450
 451                                 for (var i = 0; i < ids.length; i++) {
 452                                         markHeadline(ids[i]);
 453                                 }
 454                         }
 455                 }
 456
 457                 remove_splash();
 458
 459                 _infscroll_request_sent = 0;
 460
 461         } catch (e) {
 462                 exception_error("viewfeed_offline", e);
 463         }
 464 }
 465
 466 function render_offline_feedlist() {
 467         try {
 468                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 469
 470                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 471
 472                 var unread = get_local_feed_unread(-4);
 473
 474                 global_unread = unread;
 475                 updateTitle();
 476
 477                 if (cats_enabled) {
 478                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 479                 }
 480
 481                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 482                         "images/tag.png");
 483
 484                 var unread = get_local_feed_unread(-1);
 485
 486                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 487                         "images/mark_set.png");
 488
 489                 if (cats_enabled) {
 490                         tmp += "</ul></li>";
 491                 } else {
 492                         tmp += "<li><hr/></li>";
 493                 }
 494
 495                 if (cats_enabled) {
 496                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 497                 }
 498
 499                 var rs = db.execute("SELECT id,caption "+
 500                         "FROM labels "+
 501                         "ORDER BY caption");
 502
 503                 while (rs.isValidRow()) {
 504                         var id = -11 - parseInt(rs.field(0));
 505                         var caption = rs.field(1);
 506                         var unread = get_local_feed_unread(id);
 507
 508                         tmp += printFeedEntry(id, caption, "feed", unread,
 509                                 "images/label.png");
 510
 511                         rs.next();
 512                 }
 513
 514                 rs.close();
 515
 516                 if (cats_enabled) {
 517                         tmp += "</ul></li>";
 518                 } else {
 519                         tmp += "<li><hr/></li>";
 520                 }
 521
 522 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 523                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 524                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 525                         "ORDER BY feeds.title"); */
 526
 527                 var order_by = "feeds.title";
 528
 529                 if (cats_enabled) order_by = "categories.title," + order_by;
 530
 531                 var rs = db.execute("SELECT "+
 532                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 533                         "FROM feeds,categories WHERE cat_id = categories.id "+
 534                         "ORDER BY "+order_by);
 535
 536                 var tmp_cat_id = -1;
 537
 538                 while (rs.isValidRow()) {
 539
 540                         var id = rs.field(0);
 541                         var title = rs.field(1);
 542                         var has_icon = rs.field(2);
 543                         var unread = get_local_feed_unread(id);
 544                         var cat_id = rs.field(3);
 545                         var cat_hidden = rs.field(4);
 546
 547                         if (cat_id != tmp_cat_id && cats_enabled) {
 548                                 if (tmp_cat_id != -1) {
 549                                         tmp += "</ul></li>";
 550                                 }
 551                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 552                                 tmp_cat_id = cat_id;
 553                         }
 554
 555                         var icon = "";
 556
 557                         if (has_icon) {
 558                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 559                         }
 560
 561                         var feed_icon = "";
 562
 563                         var row_class = "feed";
 564
 565                         if (unread > 0) {
 566                                 row_class += "Unread";
 567                                 fctr_class = "feedCtrHasUnread";
 568                         } else {
 569                                 fctr_class = "feedCtrNoUnread";
 570                         }
 571
 572                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 573
 574                         rs.next();
 575                 }
 576
 577                 rs.close();
 578
 579                 if (cats_enabled) {
 580                         tmp += "</ul>";
 581                 }
 582
 583                 tmp += "</ul>";
 584
 585                 render_feedlist(tmp);
 586         } catch (e) {
 587                 exception_error("render_offline_feedlist", e);
 588         }
 589 }
 590
 591 function init_offline() {
 592         try {
 593                 offline_mode = true;
 594                 store.enabled = true;
 595
 596                 Element.hide("dispSwitchPrompt");
 597                 Element.hide("feedBrowserPrompt");
 598
 599                 Element.hide("topLinksOnline");
 600                 Element.show("topLinksOffline");
 601
 602                 var tb_form = $("main_toolbar_form");
 603                 Element.hide(tb_form.update);
 604
 605                 var chooser = $("quickMenuChooser");
 606                 chooser.disabled = true;
 607
 608                 var rs = db.execute("SELECT key, value FROM init_params");
 609
 610                 while (rs.isValidRow()) {
 611                         init_params[rs.field(0)] = rs.field(1);
 612                         rs.next();
 613                 }
 614
 615                 rs.close();
 616
 617                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 618
 619                 var num_feeds = 0;
 620
 621                 if (rs.isValidRow()) {
 622                         num_feeds = rs.field(0);
 623                 }
 624
 625                 rs.close();
 626
 627                 if (num_feeds == 0) {
 628                         remove_splash();
 629                         return fatalError(0,
 630                                 __("Data for offline browsing has not been downloaded yet."));
 631                 }
 632
 633                 render_offline_feedlist();
 634                 init_second_stage();
 635                 window.setTimeout("viewfeed(-4)", 50);
 636
 637         } catch (e) {
 638                 exception_error("init_offline", e);
 639         }
 640 }
 641
 642 function offline_download_parse(stage, transport) {
 643         try {
 644                 if (transport.responseXML) {
 645
 646                         if (!sync_in_progress) return;
 647
 648                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 649
 650                         if (sync_ok.length > 0) {
 651                                 for (var i = 0; i < sync_ok.length; i++) {
 652                                         var id = sync_ok[i].getAttribute("id");
 653                                         if (id) {
 654                                                 debug("synced offline info for id " + id);
 655                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 656                                         }
 657                                 }
 658                         }
 659
 660                         if (stage == 0) {
 661
 662                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing feeds...");
 663
 664                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 665
 666                                 if (feeds.length > 0) {
 667                                         db.execute("DELETE FROM feeds");
 668                                 }
 669
 670                                 for (var i = 0; i < feeds.length; i++) {
 671                                         var id = feeds[i].getAttribute("id");
 672                                         var has_icon = feeds[i].getAttribute("has_icon");
 673                                         var title = feeds[i].firstChild.nodeValue;
 674                                         var cat_id = feeds[i].getAttribute("cat_id");
 675
 676                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 677                                                 "VALUES (?,?,?,?)",
 678                                                 [id, title, has_icon, cat_id]);
 679                                 }
 680
 681                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing categories...");
 682
 683                                 var cats = transport.responseXML.getElementsByTagName("category");
 684
 685                                 if (feeds.length > 0) {
 686                                         db.execute("DELETE FROM categories");
 687                                 }
 688
 689                                 for (var i = 0; i < cats.length; i++) {
 690                                         var id = cats[i].getAttribute("id");
 691                                         var collapsed = cats[i].getAttribute("collapsed");
 692                                         var title = cats[i].firstChild.nodeValue;
 693
 694                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 695                                                 "VALUES (?,?,?)",
 696                                                 [id, title, collapsed]);
 697                                 }
 698
 699                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing labels...");
 700
 701                                 var labels = transport.responseXML.getElementsByTagName("label");
 702
 703                                 if (labels.length > 0) {
 704                                         db.execute("DELETE FROM labels");
 705                                 }
 706
 707                                 for (var i = 0; i < labels.length; i++) {
 708                                         var id = labels[i].getAttribute("id");
 709                                         var fg_color = labels[i].getAttribute("fg_color");
 710                                         var bg_color = labels[i].getAttribute("bg_color");
 711                                         var caption = labels[i].firstChild.nodeValue;
 712
 713                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 714                                                 "VALUES (?,?,?,?)",
 715                                                 [id, caption, fg_color, bg_color]);
 716                                 }
 717
 718                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing articles...");
 719
 720                                 sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 2*1000);
 721                         } else {
 722
 723                                 var articles = transport.responseXML.getElementsByTagName("article");
 724
 725                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 726
 727                                 if (limit) {
 728                                         limit = limit.getAttribute("value");
 729                                 } else {
 730                                         limit = 0;
 731                                 }
 732
 733                                 var articles_found = 0;
 734
 735                                 for (var i = 0; i < articles.length; i++) {
 736                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 737                                         articles_found++;
 738                                         if (a) {
 739
 740                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 741
 742                                                 db.execute("INSERT INTO articles "+
 743                                                 "(id, feed_id, title, link, guid, updated, content, "+
 744                                                         "unread, marked, tags, comments) "+
 745                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 746                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 747                                                                 a.content, a.unread, a.marked, a.tags,
 748                                                                 a.comments]);
 749
 750                                                 if (a.labels.length > 0) {
 751                                                         for (var j = 0; j < a.labels.length; j++) {
 752                                                                 label_local_add_article(a.id, a.labels[j][0]);
 753                                                         }
 754                                                 }
 755
 756                                         }
 757                                 }
 758
 759                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 760
 761                                 articles_synced += articles_found;
 762
 763                                 var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
 764
 765                                 $("offlineModeSyncMsg").innerHTML = msg;
 766
 767                                 var has_sync_data = has_local_sync_data();
 768
 769                                 if (articles_found >= limit || has_sync_data) {
 770                                         sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
 771                                                 3*1000);
 772                                         debug("<b>update_offline_data: done " + stage + " HSD: " +
 773                                                 has_sync_data + "</b>");
 774                                 } else {
 775                                         window.setTimeout("offlineDownloadStart()", 180*1000);
 776                                         debug("update_offline_data: finished");
 777
 778                                         var pic = $("offlineModePic");
 779
 780                                         if (pic) {
 781                                                 pic.src = "images/offline.png";
 782
 783                                                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
 784                                                 var last_sync = "";
 785
 786                                                 if (rs.isValidRow()) {
 787                                                         last_sync = rs.field(0).substring(0,16);
 788                                                 }
 789                                                 rs.close();
 790
 791                                                 var msg = __("Last sync: %s").replace("%s", last_sync);
 792
 793                                                 articles_synced = 0;
 794
 795                                                 $("offlineModeSyncMsg").innerHTML = msg;
 796                                         }
 797
 798                                         offlineSyncShowHideElems(false);
 799
 800                                         sync_in_progress = false;
 801
 802                                         db.execute("DELETE FROM articles WHERE "+
 803                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 804
 805                                 }
 806                         }
 807
 808                         update_local_sync_data();
 809
 810
 811 //                      notify('');
 812
 813                 } else {
 814                         sync_in_progress = false;
 815
 816                         var pic = $("offlineModePic");
 817
 818                         if (pic) {
 819                                 pic.src = "images/offline.png";
 820                                 var msg = __("Last sync: Error receiving data.");
 821                                 articles_synced = 0;
 822                                 $("offlineModeSyncMsg").innerHTML = msg;
 823                         }
 824
 825                         offlineSyncShowHideElems(false);
 826                 }
 827
 828         } catch (e) {
 829                 exception_error("offline_download_parse", e);
 830         }
 831 }
 832
 833 function update_offline_data(stage) {
 834         try {
 835
 836                 if (!stage) stage = 0;
 837
 838                 if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
 839
 840 //              notify_progress("Updating offline data... (" + stage +")", true);
 841
 842                 var query = "backend.php?op=rpc&subop=download";
 843
 844                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 845
 846                 if (rs.isValidRow() && rs.field(0)) {
 847                         var offline_dl_max_id = rs.field(0);
 848                         var offline_dl_min_id = rs.field(1);
 849
 850                         query = query + "&cidt=" + offline_dl_max_id;
 851                         query = query + "&cidb=" + offline_dl_min_id;
 852
 853                         stage = 1;
 854                 }
 855
 856                 rs.close();
 857
 858                 debug("update_offline_data: stage " + stage);
 859
 860                 query = query + "&stage=" + stage;
 861
 862                 var to_sync = prepare_local_sync_data();
 863
 864                 if (to_sync != "") {
 865                         to_sync = "?sync=" + param_escape(to_sync);
 866                 }
 867
 868                 debug(query + "/" + to_sync);
 869
 870                 var pic = $("offlineModePic");
 871
 872                 if (pic) {
 873                         pic.src = "images/offline-sync.gif";
 874                         if (articles_synced == 0) {
 875                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
 876                         }
 877                 }
 878
 879                 offlineSyncShowHideElems(true);
 880                 offlineUpdateStore();
 881
 882                 sync_in_progress = true;
 883
 884                 new Ajax.Request(query, {
 885                         parameters: to_sync,
 886                         onComplete: function(transport) {
 887                                 offline_download_parse(stage, transport);
 888                         } });
 889
 890         } catch (e) {
 891                 exception_error("initiate_offline_download", e);
 892         }
 893 }
 894
 895 function set_feedlist_counter(id, ctr, is_cat) {
 896         try {
 897
 898                 var feedctr = $("FEEDCTR-" + id);
 899                 var feedu = $("FEEDU-" + id);
 900                 var feedr = $("FEEDR-" + id);
 901
 902                 if (is_cat) {
 903                         var catctr = $("FCATCTR-" + id);
 904                         if (catctr) {
 905                                 catctr.innerHTML = "(" + ctr + ")";
 906                                 if (ctr > 0) {
 907                                         catctr.className = "catCtrHasUnread";
 908                                 } else {
 909                                         catctr.className = "catCtrNoUnread";
 910                                 }
 911                         }
 912                 } else if (feedctr && feedu && feedr) {
 913
 914                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 915
 916                         feedu.innerHTML = ctr;
 917
 918                         if (ctr > 0) {
 919                                 feedctr.className = "feedCtrHasUnread";
 920                                 if (!feedr.className.match("Unread")) {
 921                                         var is_selected = feedr.className.match("Selected");
 922
 923                                         feedr.className = feedr.className.replace("Selected", "");
 924                                         feedr.className = feedr.className.replace("Unread", "");
 925
 926                                         feedr.className = feedr.className + "Unread";
 927
 928                                         if (is_selected) {
 929                                                 feedr.className = feedr.className + "Selected";
 930                                         }
 931
 932                                 }
 933
 934                                 if (row_needs_hl) {
 935                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 936                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 937                                 }
 938                         } else {
 939                                 feedctr.className = "feedCtrNoUnread";
 940                                 feedr.className = feedr.className.replace("Unread", "");
 941                         }
 942                 }
 943
 944         } catch (e) {
 945                 exception_error("set_feedlist_counter", e);
 946         }
 947 }
 948
 949 function update_local_feedlist_counters() {
 950         try {
 951                 if (!offline_mode || !db) return;
 952
 953 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 954                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 955                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 956                         "ORDER BY feeds.title"); */
 957
 958                 var rs = db.execute("SELECT id FROM feeds "+
 959                         "ORDER BY title");
 960
 961                 while (rs.isValidRow()) {
 962                         var id = rs.field(0);
 963                         var ctr = get_local_feed_unread(id);
 964                         set_feedlist_counter(id, ctr, false);
 965                         rs.next();
 966                 }
 967
 968                 rs.close();
 969
 970                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 971                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 972
 973                 while (rs.isValidRow()) {
 974                         var id = rs.field(0);
 975                         var ctr = rs.field(1);
 976                         set_feedlist_counter(id, ctr, true);
 977                         rs.next();
 978                 }
 979
 980                 rs.close();
 981
 982                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 983
 984                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 985                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 986
 987                 var rs = db.execute("SELECT id FROM labels");
 988
 989                 while (rs.isValidRow()) {
 990                         var id = -11 - rs.field(0);
 991                         var ctr = get_local_feed_unread(id);
 992                         set_feedlist_counter(id, ctr, false);
 993                         rs.next();
 994                 }
 995
 996                 rs.close();
 997
 998                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 999
1000                 global_unread = get_local_feed_unread(-4);
1001                 updateTitle();
1002
1003         } catch (e) {
1004                 exception_error("update_local_feedlist_counters", e);
1005         }
1006 }
1007
1008 function get_local_feed_unread(id) {
1009         try {
1010                 var rs;
1011
1012                 if (id == -4) {
1013                         rs = db.execute("SELECT SUM(unread) FROM articles");
1014                 } else if (id == -1) {
1015                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
1016                 } else if (id > 0) {
1017                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
1018                 } else if (id < -10) {
1019                         var label_id = -11 - id;
1020                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
1021                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
1022                 }
1023
1024                 var a = false;
1025
1026                 if (rs.isValidRow()) {
1027                         a = rs.field(0);
1028                 } else {
1029                         a = 0;
1030                 }
1031
1032                 rs.close();
1033
1034                 return a;
1035
1036         } catch (e) {
1037                 exception_error("get_local_feed_unread", e);
1038         }
1039 }
1040
1041 function enable_offline_reading() {
1042         try {
1043
1044                 if (db && getInitParam("offline_enabled") == "1") {
1045                         init_local_sync_data();
1046                         Element.show("offlineModePic");
1047                         offlineDownloadStart();
1048                 }
1049
1050         } catch (e) {
1051                 exception_error("enable_offline_reading", e);
1052         }
1053 }
1054
1055 function init_gears() {
1056         try {
1057
1058                 if (window.google && google.gears) {
1059
1060                         try {
1061                                 localServer = google.gears.factory.create("beta.localserver");
1062                         } catch (e) {
1063                                 return;
1064                         }
1065
1066                         store = localServer.createManagedStore("tt-rss");
1067                         store.manifestUrl = "manifest.json.php";
1068                         store.enabled = false;
1069
1070                         db = google.gears.factory.create('beta.database');
1071                         db.open('tt-rss');
1072
1073                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1074
1075                         var rs = db.execute("SELECT schema_version FROM version");
1076
1077                         var version = "";
1078
1079                         if (rs.isValidRow()) {
1080                                 version = rs.field(0);
1081                         }
1082
1083                         rs.close();
1084
1085                         if (version != SCHEMA_VERSION) {
1086                                 db.execute("DROP TABLE IF EXISTS init_params");
1087                                 db.execute("DROP TABLE IF EXISTS cache");
1088                                 db.execute("DROP TABLE IF EXISTS feeds");
1089                                 db.execute("DROP TABLE IF EXISTS categories");
1090                                 db.execute("DROP TABLE IF EXISTS labels");
1091                                 db.execute("DROP TABLE IF EXISTS article_labels");
1092                                 db.execute("DROP TABLE IF EXISTS articles");
1093                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
1094                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
1095                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
1096                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
1097                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
1098                                 db.execute("DROP TABLE IF EXISTS version");
1099                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
1100                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
1101                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
1102                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1103                                 db.execute("DROP TABLE IF EXISTS syncdata");
1104                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
1105                                         [SCHEMA_VERSION]);
1106                         }
1107
1108                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
1109
1110                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
1111                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
1112                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
1113                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
1114                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
1115                         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)");
1116
1117                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
1118                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
1119                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
1120                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
1121                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
1122
1123                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
1124
1125                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1126
1127                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1128                                 "UPDATE OF unread ON articles "+
1129                                 "BEGIN "+
1130                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1131                                 "WHERE id = OLD.id AND "+
1132                                 "OLD.unread != NEW.unread;"+
1133                                 "END;");
1134
1135                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1136                                 "UPDATE OF marked ON articles "+
1137                                 "BEGIN "+
1138                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1139                                 "WHERE id = OLD.id;"+
1140                                 "END;");
1141
1142                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1143                                 "DELETE ON articles "+
1144                                 "BEGIN "+
1145                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1146                                 "END; ");
1147
1148                 }
1149
1150                 cache_expire();
1151
1152         } catch (e) {
1153                 exception_error("init_gears", e);
1154         }
1155 }
1156
1157 function offlineArticlesStored() {
1158
1159         var rs = db.execute("SELECT COUNT(*) FROM articles");
1160         var count = 0;
1161         if (rs.isValidRow()) {
1162                 count = rs.field(0);
1163         }
1164
1165         rs.close();
1166
1167         return count;
1168 }
1169
1170 function gotoOffline() {
1171
1172 //      debug("[Local store] currentVersion = " + store.currentVersion);
1173
1174
1175         if (offlineArticlesStored() == 0) {
1176                 notify_error("You have to synchronize some articles before going into offline mode.");
1177                 return;
1178         }
1179
1180         if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
1181
1182                 store.enabled = true;
1183                 store.checkForUpdate();
1184
1185                 notify_progress("Preparing offline mode...", true);
1186
1187                 var timerId = window.setInterval(function() {
1188                         if (store.currentVersion) {
1189                                 window.clearInterval(timerId);
1190                                 debug("[Local store] sync complete: " + store.currentVersion);
1191
1192                                 //window.location.href = "tt-rss.php";
1193
1194                                 offlineDownloadStop();
1195                                 init_offline();
1196
1197                                 notify_info("Tiny Tiny RSS is in offline mode.");
1198
1199                         } else if (store.updateStatus == 3) {
1200                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1201                                 notify_error(store.lastErrorMessage, true);
1202                         } }, 500);
1203         }
1204 }
1205
1206 function gotoOnline() {
1207 //      if (confirm(__("You won't be able to access offline version of Tiny Tiny RSS until you switch it into offline mode again. Go online?"))) {
1208         if (confirm(__("Tiny Tiny RSS will reload. Go online?"))) {
1209                 //localServer.removeManagedStore("tt-rss");
1210                 window.location.href = "tt-rss.php";
1211         }
1212 }
1213
1214 function local_collapse_cat(id) {
1215         try {
1216                 if (db) {
1217                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1218                                 [id]);
1219                 }
1220         } catch (e) {
1221                 exception_error("local_collapse_cat", e);
1222         }
1223 }
1224
1225 function get_local_category_title(id) {
1226         try {
1227
1228                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1229                 var tmp = "";
1230
1231                 if (rs.isValidRow()) {
1232                         tmp = rs.field(0);
1233                 }
1234
1235                 rs.close();
1236
1237                 return tmp;
1238
1239         } catch (e) {
1240                 exception_error("get_local_category_title", e);
1241         }
1242 }
1243
1244 function get_local_category_unread(id) {
1245         try {
1246                 var rs = false;
1247
1248                 if (id >= 0) {
1249                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1250                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1251                 } else if (id == -2) {
1252                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1253                                 "where article_labels.id = articles.id");
1254                 } else {
1255                         return 0;
1256                 }
1257
1258                 var tmp = 0;
1259
1260                 if (rs.isValidRow()) {
1261                         tmp = rs.field(0);
1262                 }
1263
1264                 rs.close();
1265
1266                 return tmp;
1267
1268         } catch (e) {
1269                 exception_error("get_local_category_unread", e);
1270         }
1271 }
1272
1273 function printCategoryHeader(cat_id, hidden, can_browse) {
1274         try {
1275                 if (hidden == undefined) hidden = false;
1276                 if (can_browse == undefined) can_browse = false;
1277
1278                         var tmp_category = get_local_category_title(cat_id);
1279                         var tmp = "";
1280
1281                         var cat_unread = get_local_category_unread(cat_id);
1282
1283                         var holder_style = "";
1284                         var ellipsis = "";
1285
1286                         if (hidden) {
1287                                 holder_style = "display:none;";
1288                                 ellipsis = "…";
1289                         }
1290
1291                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1292
1293                         var browse_cat_link = "";
1294                         var inner_title_class = "catTitleNL";
1295
1296                         if (can_browse) {
1297                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1298                                 inner_title_class = "catTitle";
1299                         }
1300
1301                         var cat_class = "feedCat";
1302
1303                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1304                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1305                                         " title=\""+__('Click to collapse category')+"\""+
1306                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1307                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1308                                 "\">"+tmp_category+"</span>";
1309
1310                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1311
1312                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1313                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1314
1315                         tmp += "</span>";
1316
1317                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1318                                 "style='"+holder_style+"'>";
1319
1320                         return tmp;
1321         } catch (e) {
1322                 exception_error("printCategoryHeader", e);
1323         }
1324 }
1325
1326 function is_local_cat_collapsed(id) {
1327         try {
1328
1329                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1330                 var cat_hidden = 0;
1331
1332                 if (rs.isValidRow()) {
1333                         cat_hidden = rs.field(0);
1334                 }
1335
1336                 rs.close();
1337
1338                 return cat_hidden == "1";
1339
1340         } catch (e) {
1341                 exception_error("is_local_cat_collapsed", e);
1342         }
1343 }
1344
1345 function get_local_article_labels(id) {
1346         try {
1347                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1348                         "FROM labels, article_labels "+
1349                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1350
1351                 var tmp = new Array();
1352
1353                 while (rs.isValidRow()) {
1354                         var e = new Array();
1355
1356                         e[0] = rs.field(0);
1357                         e[1] = rs.field(1);
1358                         e[2] = rs.field(2);
1359                         e[3] = rs.field(3);
1360
1361                         tmp.push(e);
1362
1363                         rs.next();
1364                 }
1365
1366                 return tmp;
1367
1368         } catch (e) {
1369                 exception_error("get_local_article_labels", e);
1370         }
1371 }
1372
1373 function label_local_add_article(id, label_id) {
1374         try {
1375                 //debug("label_local_add_article " + id + " => " + label_id);
1376
1377                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1378                         "id = ? AND label_id = ?", [id, label_id]);
1379                 var check = rs.field(0);
1380
1381                 if (rs.isValidRow()) {
1382                         var check = rs.field(0);
1383                 }
1384                 rs.close();
1385
1386                 if (check == 0) {
1387                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1388                                 "(?,?)", [id, label_id]);
1389                 }
1390
1391         } catch (e) {
1392                 exception_error("label_local_add_article", e);
1393         }
1394 }
1395
1396 function get_local_feed_title(id) {
1397         try {
1398
1399                 var feed_title = "Unknown feed: " + id;
1400
1401                 if (id > 0) {
1402                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1403
1404                         if (rs.isValidRow()) {
1405                                 feed_title = rs.field(0);
1406                         }
1407
1408                         rs.close();
1409                 } else if (id == -1) {
1410                         feed_title = __("Starred articles");
1411                 } else if (id == -4) {
1412                         feed_title = __("All articles");
1413                 } else if (id < -10) {
1414
1415                         var label_id = -11 - id;
1416
1417                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1418
1419                         if (rs.isValidRow()) {
1420                                 feed_title = rs.field(0);
1421                         }
1422
1423                         rs.close();
1424                 }
1425
1426                 return feed_title;
1427
1428         } catch (e) {
1429                 exception_error("get_local_feed_title", e);
1430         }
1431 }
1432
1433 function format_article_labels(labels, id) {
1434         try {
1435
1436                 var labels_str = "";
1437
1438                 if (!labels) return "";
1439
1440                 for (var i = 0; i < labels.length; i++) {
1441                         var l = labels[i];
1442
1443                         labels_str += "<span class='hlLabelRef' "+
1444                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1445                 }
1446
1447                 return labels_str;
1448
1449         } catch (e) {
1450                 exception_error("format_article_labels", e);
1451         }
1452 }
1453
1454 function init_local_sync_data() {
1455         try {
1456
1457                 if (!db) return;
1458
1459                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1460                 var has_last_online = 0;
1461
1462                 if (rs.isValidRow()) {
1463                         has_last_online = rs.field(0);
1464                 }
1465
1466                 rs.close();
1467
1468                 if (!has_last_online) {
1469                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1470                 }
1471
1472         } catch (e) {
1473                 exception_error("init_local_sync_data", e);
1474
1475         }
1476 }
1477
1478 function has_local_sync_data() {
1479         try {
1480
1481                 var rs = db.execute("SELECT id FROM articles "+
1482                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1483                         "LIMIT 1");
1484
1485                 var tmp = 0;
1486
1487                 if (rs.isValidRow()) {
1488                         tmp = rs.field(0);
1489                 }
1490
1491                 rs.close();
1492
1493                 return tmp != 0;
1494
1495         } catch (e) {
1496                 exception_error("has_local_sync_data", e);
1497         }
1498 }
1499
1500 function prepare_local_sync_data() {
1501         try {
1502                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1503
1504                 var last_online = "";
1505
1506                 if (rs.isValidRow()) {
1507                         last_online = rs.field(0);
1508                 }
1509
1510                 rs.close();
1511
1512                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1513                         "WHERE modified > ? LIMIT 200", [last_online]);
1514
1515                 var tmp = last_online + ";";
1516
1517                 var entries = 0;
1518
1519                 while (rs.isValidRow()) {
1520                         var e = new Array();
1521
1522                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1523                         entries++;
1524
1525                         rs.next();
1526                 }
1527
1528                 rs.close();
1529
1530                 if (entries > 0) {
1531                         return tmp;
1532                 } else {
1533                         return '';
1534                 }
1535
1536         } catch (e) {
1537                 exception_error("prepare_local_sync_data", e);
1538         }
1539 }
1540
1541 function update_local_sync_data() {
1542         try {
1543                 if (db && !offline_mode) {
1544
1545                         var rs = db.execute("SELECT id FROM articles "+
1546                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1547                                         "key = 'last_online') LIMIT 1")
1548
1549                         var f_id = 0;
1550
1551                         if (rs.isValidRow()) {
1552                                 f_id = rs.field(0);
1553                         }
1554
1555                         rs.close();
1556
1557                         /* no pending articles to sync */
1558
1559                         if (f_id == 0) {
1560                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1561                                         "WHERE key = 'last_online'");
1562                         }
1563
1564                 }
1565         } catch (e) {
1566                 exception_error("update_local_sync_data", e);
1567         }
1568 }
1569
1570 function catchup_local_feed(id, is_cat) {
1571         try {
1572                 if (!db) return;
1573
1574                 if (!is_cat) {
1575                         if (id >= 0) {
1576                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1577                         } else if (id == -1) {
1578                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1579                         } else if (id == -4) {
1580                                 db.execute("UPDATE articles SET unread = 0");
1581                         } else if (id < -10) {
1582                                 var label_id = -11-id;
1583
1584                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1585                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1586                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1587                         }
1588                 }
1589
1590                 update_local_feedlist_counters();
1591
1592         } catch (e) {
1593                 exception_error("catchup_local_feed", e);
1594         }
1595 }
1596
1597 function toggleOfflineModeInfo() {
1598         try {
1599                 var e = $('offlineModeDrop');
1600                 var p = $('offlineModePic');
1601
1602                 if (Element.visible(e)) {
1603                         Element.hide(e);
1604                 } else {
1605                         Element.show(e);
1606                 }
1607
1608         } catch (e) {
1609                 exception_error("toggleOfflineModeInfo", e);
1610         }
1611 }
1612
1613 function offlineDownloadStart() {
1614         try {
1615                 if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
1616                         window.setTimeout("update_offline_data(0)", 100);
1617                 }
1618         } catch (e) {
1619                 exception_error("offlineDownloadStart", e);
1620         }
1621 }
1622
1623 function offlineDownloadStop() {
1624         try {
1625                 if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
1626
1627                         sync_in_progress = false;
1628
1629                         if (sync_timer) {
1630                                 window.clearTimeout(sync_timer);
1631                                 sync_timer = false;
1632                         }
1633
1634                         var pic = $("offlineModePic");
1635
1636                         if (pic) {
1637                                 pic.src = "images/offline.png";
1638                                 var msg = __("Last sync: Cancelled.");
1639                                 articles_synced = 0;
1640                                 $("offlineModeSyncMsg").innerHTML = msg;
1641                         }
1642
1643                         offlineSyncShowHideElems(false);
1644
1645                 }
1646         } catch (e) {
1647                 exception_error("offlineDownloadStart", e);
1648         }
1649 }
1650
1651 function offlineClearData() {
1652         try {
1653                 if (db) {
1654
1655                         if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
1656
1657                                 notify_progress("Removing offline data...");
1658
1659                                 localServer.removeManagedStore("tt-rss");
1660
1661                                 db.execute("DELETE FROM articles");
1662                                 db.execute("DELETE FROM article_labels");
1663                                 db.execute("DELETE FROM labels");
1664                                 db.execute("DELETE FROM feeds");
1665                                 db.execute("DELETE FROM cache");
1666
1667                                 notify_info("Local data removed.");
1668                         }
1669                 }
1670         } catch (e) {
1671                 exception_error("offlineClearData", e);
1672         }
1673 }
1674
1675 function offlineUpdateStore() {
1676         try {
1677                 if (offline_mode || !store) return;
1678
1679                 store.checkForUpdate();
1680
1681                 var timerId = window.setInterval(function() {
1682                         if (store.currentVersion) {
1683                                 window.clearInterval(timerId);
1684                                 debug("[Local store] sync complete: " + store.currentVersion);
1685                         } else if (store.updateStatus == 3) {
1686                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1687                         } }, 500);
1688
1689         } catch (e) {
1690                 exception_error("offlineUpdateStore", e);
1691         }
1692 }
1693
1694 function offlineSyncShowHideElems(syncing) {
1695         try {
1696
1697                 var elems = $$("div.hideWhenSyncing");
1698
1699                 for (var j = 0; j < elems.length; j++) {
1700                         if (syncing) {
1701                                 Element.hide(elems[j]);
1702                         } else {
1703                                 Element.show(elems[j]);
1704                         }
1705                 }
1706
1707                 var elems = $$("div.showWhenSyncing");
1708
1709                 for (var j = 0; j < elems.length; j++) {
1710                         if (syncing) {
1711                                 Element.show(elems[j]);
1712                         } else {
1713                                 Element.hide(elems[j]);
1714                         }
1715                 }
1716
1717         } catch (e) {
1718                 exception_error("offlineSyncShowHideElems", e);
1719         }
1720 }
1721
1722 function offlineConfirmModeChange() {
1723         try {
1724
1725                 if (db && getInitParam("offline_enabled") == "1" && offlineArticlesStored() > 0) {
1726                         var ok = confirm(__("Tiny Tiny RSS has trouble accessing its server. Would you like to go offline?"));
1727
1728                         if (ok) {
1729                                 init_offline();
1730                         }
1731                 }
1732
1733         } catch (e) {
1734                 exception_error("offlineConfirmModeChange", e);
1735         }
1736 }