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 += "</div>";
 170
 171                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 172                                 if ($("content-frame")) {
 173                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 174                                 }
 175
 176                         }
 177
 178                         var limit = 30;
 179
 180                         var toolbar_form = document.forms["main_toolbar_form"];
 181
 182                         var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 183                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 184
 185                         var limit_qpart = "";
 186                         var strategy_qpart = "";
 187                         var mode_qpart = "";
 188                         var offset_qpart = "";
 189
 190                         if (limit != 0) {
 191                                 limit_qpart = "LIMIT " + limit;
 192                         }
 193
 194                         if (view_mode == "all_articles") {
 195                                 mode_qpart = "1";
 196                         } else if (view_mode == "adaptive") {
 197                                 if (is_cat && get_local_category_unread(feed_id) ||
 198                                         get_local_feed_unread(feed_id) > 0) {
 199                                                 mode_qpart = "unread = 1";
 200                                 } else {
 201                                         mode_qpart = "1";
 202                                 }
 203
 204                         } else if (view_mode == "marked") {
 205                                 mode_qpart = "marked = 1";
 206                         } else if (view_mode == "unread") {
 207                                 mode_qpart = "unread = 1";
 208                         } else {
 209                                 mode_qpart = "1";
 210                         }
 211
 212                         var ext_tables_qpart = "";
 213
 214                         if (is_cat) {
 215                                 if (feed_id >= 0) {
 216                                         strategy_qpart = "cat_id = " + feed_id;
 217                                 } else if (feed_id == -2) {
 218                                         strategy_qpart = "article_labels.id = articles.id";
 219                                         ext_tables_qpart = ",article_labels";
 220                                 }
 221                         } else if (feed_id > 0) {
 222                                 strategy_qpart = "feed_id = " + feed_id;
 223                         } else if (feed_id == -1) {
 224                                 strategy_qpart = "marked = 1";
 225                         } else if (feed_id == -4) {
 226                                 strategy_qpart = "1";
 227                         } else if (feed_id < -10) {
 228                                 var label_id = -11 - feed_id;
 229                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 230                                 ext_tables_qpart = ",article_labels";
 231                         }
 232
 233                         if (offset > 0) {
 234                                 offset_qpart = "OFFSET " + (offset*30);
 235                         } else {
 236                                 offset_qpart = "";
 237                         }
 238
 239                         var query = "SELECT *,feeds.title AS feed_title "+
 240                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 241                                 "WHERE " +
 242                                 "cat_id = categories.id AND " +
 243                                 "feed_id = feeds.id AND " +
 244                                 strategy_qpart +
 245                                 " AND " + mode_qpart +
 246                                 " ORDER BY updated DESC "+
 247                                 limit_qpart + " " +
 248                                 offset_qpart;
 249
 250                         var rs = db.execute(query);
 251
 252                         var line_num = offset*30;
 253
 254                         var real_feed_id = feed_id;
 255
 256                         while (rs.isValidRow()) {
 257
 258                                 var id = rs.fieldByName("id");
 259                                 var feed_id = rs.fieldByName("feed_id");
 260
 261                                 var entry_feed_title = false;
 262
 263                                 if (real_feed_id < 0 || is_cat) {
 264                                         entry_feed_title = rs.fieldByName("feed_title");
 265                                 }
 266
 267                                 var marked_pic;
 268
 269                                 var row_class = (line_num % 2) ? "even" : "odd";
 270
 271                                 if (rs.fieldByName("unread") == "1") {
 272                                         row_class += "Unread";
 273                                 }
 274
 275                                 var labels = get_local_article_labels(id);
 276
 277                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 278                                 labels_str += format_article_labels(labels, id);
 279                                 labels_str += "</span>";
 280
 281                                 if (rs.fieldByName("marked") == "1") {
 282                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 283                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 284                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 285                                 } else {
 286                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 287                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 288                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 289                                 }
 290
 291                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 292                                         "onmouseout='postMouseOut($id)'";
 293
 294                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 295                                                 100);
 296
 297                                 if ($("content-frame")) {
 298
 299                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 300
 301                                         tmp += "<td class='hlUpdPic'> </td>";
 302
 303                                         tmp += "<td class='hlSelectRow'>"+
 304                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 305
 306                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 307
 308                                         tmp += "<td onclick='view("+id+","+feed_id+")' "+
 309                                                 "class='hlContent' valign='middle'>";
 310
 311                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 312                                                 rs.fieldByName("link") + "\"" +
 313                                                 "onclick=\"return view("+id+","+feed_id+");\">"+
 314                                                 rs.fieldByName("title");
 315
 316                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 317
 318                                         tmp += "</a>";
 319
 320                                         tmp += labels_str;
 321
 322                                         if (entry_feed_title) {
 323                                                 tmp += " <span class=\"hlFeed\">"+
 324                                                         "(<a href='javascript:viewfeed("+feed_id+
 325                                                         ")'>"+entry_feed_title+"</a>)</span>";
 326                                         }
 327
 328                                         tmp += "</td>";
 329
 330                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
 331                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 332                                                 "</nobr></td>";
 333
 334                                         tmp += "</tr>";
 335                                 } else {
 336
 337                                         var add_class = "";
 338
 339                                         if (rs.fieldByName("unread") == "1") {
 340                                                 add_class = "Unread";
 341                                         }
 342
 343                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 344                                                 mouseover_attrs+"'>";
 345
 346                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 347                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 348                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 349                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 350
 351                                         tmp += "<div class=\"cdmHeader\">";
 352                                         tmp += "<div class=\"articleUpdated\">"+
 353                                                 rs.fieldByName("updated").substring(0,16)+
 354                                                 " "+cdm_feed_icon+"</div>";
 355
 356                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 357                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 358                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 359                                                 "\">"+rs.fieldByName("title")+"</a>";
 360
 361                                         tmp += labels_str;
 362
 363                                         if (entry_feed_title) {
 364                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 365                                                         ")'>"+entry_feed_title+"</a>)";
 366                                         }
 367
 368                                         tmp += "</span></div>";
 369
 370                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 371                                                 "id=\"CICD-"+id+"\">";
 372                                         tmp += rs.fieldByName("content");
 373                                         tmp += "<br clear='both'>"
 374                                         tmp += "</div>";
 375
 376                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 377                                         tmp += __("Select:")+
 378                                                 " <input type=\"checkbox\" "+
 379                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 380                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 381
 382                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 383
 384 /*                                      tmp += "<span class='s1'>"+
 385                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 386                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 387                                                 "</span>"; */
 388
 389                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 390                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 391                                                 "Unread</a></span>";
 392                                         tmp += "</div>";
 393
 394                                         tmp += "</div>";
 395                                 }
 396
 397                                 rs.next();
 398                                 line_num++;
 399                         }
 400
 401                         if (line_num - offset*30 < 30) {
 402                                 _infscroll_disable = 1;
 403                         }
 404
 405                         rs.close();
 406
 407                         if (offset == 0) {
 408                                 tmp += "</table>";
 409
 410                                 if (line_num - offset*30 == 0) {
 411                                         tmp += "<div class='whiteBox'>" +
 412                                                 __("No articles found to display.") +
 413                                                 "</div>";
 414                                 }
 415                                 tmp += "</div></div>";
 416                         }
 417
 418                         if (offset == 0) {
 419                                 var container = $("headlines-frame");
 420                                 container.innerHTML = tmp;
 421                         } else {
 422                                 var ids = getSelectedArticleIds2();
 423
 424                                 var container = $("headlinesList");
 425                                 container.innerHTML = container.innerHTML + tmp;
 426
 427                                 for (var i = 0; i < ids.length; i++) {
 428                                         markHeadline(ids[i]);
 429                                 }
 430                         }
 431                 }
 432
 433                 remove_splash();
 434
 435                 _infscroll_request_sent = 0;
 436
 437         } catch (e) {
 438                 exception_error("viewfeed_offline", e);
 439         }
 440 }
 441
 442 function render_offline_feedlist() {
 443         try {
 444                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 445
 446                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 447
 448                 var unread = get_local_feed_unread(-4);
 449
 450                 global_unread = unread;
 451                 updateTitle();
 452
 453                 if (cats_enabled) {
 454                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 455                 }
 456
 457                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 458                         "images/tag.png");
 459
 460                 var unread = get_local_feed_unread(-1);
 461
 462                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 463                         "images/mark_set.png");
 464
 465                 if (cats_enabled) {
 466                         tmp += "</ul></li>";
 467                 } else {
 468                         tmp += "<li><hr/></li>";
 469                 }
 470
 471                 if (cats_enabled) {
 472                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 473                 }
 474
 475                 var rs = db.execute("SELECT id,caption "+
 476                         "FROM labels "+
 477                         "ORDER BY caption");
 478
 479                 while (rs.isValidRow()) {
 480                         var id = -11 - parseInt(rs.field(0));
 481                         var caption = rs.field(1);
 482                         var unread = get_local_feed_unread(id);
 483
 484                         tmp += printFeedEntry(id, caption, "feed", unread,
 485                                 "images/label.png");
 486
 487                         rs.next();
 488                 }
 489
 490                 rs.close();
 491
 492                 if (cats_enabled) {
 493                         tmp += "</ul></li>";
 494                 } else {
 495                         tmp += "<li><hr/></li>";
 496                 }
 497
 498 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 499                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 500                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 501                         "ORDER BY feeds.title"); */
 502
 503                 var order_by = "feeds.title";
 504
 505                 if (cats_enabled) order_by = "categories.title," + order_by;
 506
 507                 var rs = db.execute("SELECT "+
 508                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 509                         "FROM feeds,categories WHERE cat_id = categories.id "+
 510                         "ORDER BY "+order_by);
 511
 512                 var tmp_cat_id = -1;
 513
 514                 while (rs.isValidRow()) {
 515
 516                         var id = rs.field(0);
 517                         var title = rs.field(1);
 518                         var has_icon = rs.field(2);
 519                         var unread = get_local_feed_unread(id);
 520                         var cat_id = rs.field(3);
 521                         var cat_hidden = rs.field(4);
 522
 523                         if (cat_id != tmp_cat_id && cats_enabled) {
 524                                 if (tmp_cat_id != -1) {
 525                                         tmp += "</ul></li>";
 526                                 }
 527                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 528                                 tmp_cat_id = cat_id;
 529                         }
 530
 531                         var icon = "";
 532
 533                         if (has_icon) {
 534                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 535                         }
 536
 537                         var feed_icon = "";
 538
 539                         var row_class = "feed";
 540
 541                         if (unread > 0) {
 542                                 row_class += "Unread";
 543                                 fctr_class = "feedCtrHasUnread";
 544                         } else {
 545                                 fctr_class = "feedCtrNoUnread";
 546                         }
 547
 548                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 549
 550                         rs.next();
 551                 }
 552
 553                 rs.close();
 554
 555                 if (cats_enabled) {
 556                         tmp += "</ul>";
 557                 }
 558
 559                 tmp += "</ul>";
 560
 561                 render_feedlist(tmp);
 562         } catch (e) {
 563                 exception_error("render_offline_feedlist", e);
 564         }
 565 }
 566
 567 function init_offline() {
 568         try {
 569                 offline_mode = true;
 570
 571                 Element.hide("dispSwitchPrompt");
 572                 Element.hide("feedBrowserPrompt");
 573
 574                 Element.hide("topLinksOnline");
 575                 Element.show("topLinksOffline");
 576
 577                 var tb_form = $("main_toolbar_form");
 578                 Element.hide(tb_form.update);
 579
 580                 var chooser = $("quickMenuChooser");
 581                 chooser.disabled = true;
 582
 583                 var rs = db.execute("SELECT key, value FROM init_params");
 584
 585                 while (rs.isValidRow()) {
 586                         init_params[rs.field(0)] = rs.field(1);
 587                         rs.next();
 588                 }
 589
 590                 rs.close();
 591
 592                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 593
 594                 var num_feeds = 0;
 595
 596                 if (rs.isValidRow()) {
 597                         num_feeds = rs.field(0);
 598                 }
 599
 600                 rs.close();
 601
 602                 if (num_feeds == 0) {
 603                         remove_splash();
 604                         return fatalError(0,
 605                                 __("Data for offline browsing has not been downloaded yet."));
 606                 }
 607
 608                 render_offline_feedlist();
 609                 init_second_stage();
 610                 window.setTimeout("viewfeed(-4)", 50);
 611
 612         } catch (e) {
 613                 exception_error("init_offline", e);
 614         }
 615 }
 616
 617 function offline_download_parse(stage, transport) {
 618         try {
 619                 if (transport.responseXML) {
 620
 621                         if (!sync_in_progress) return;
 622
 623                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 624
 625                         if (sync_ok.length > 0) {
 626                                 for (var i = 0; i < sync_ok.length; i++) {
 627                                         var id = sync_ok[i].getAttribute("id");
 628                                         if (id) {
 629                                                 debug("synced offline info for id " + id);
 630                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 631                                         }
 632                                 }
 633                         }
 634
 635                         if (stage == 0) {
 636
 637                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 638
 639                                 if (feeds.length > 0) {
 640                                         db.execute("DELETE FROM feeds");
 641                                 }
 642
 643                                 for (var i = 0; i < feeds.length; i++) {
 644                                         var id = feeds[i].getAttribute("id");
 645                                         var has_icon = feeds[i].getAttribute("has_icon");
 646                                         var title = feeds[i].firstChild.nodeValue;
 647                                         var cat_id = feeds[i].getAttribute("cat_id");
 648
 649                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 650                                                 "VALUES (?,?,?,?)",
 651                                                 [id, title, has_icon, cat_id]);
 652                                 }
 653
 654                                 var cats = transport.responseXML.getElementsByTagName("category");
 655
 656                                 if (feeds.length > 0) {
 657                                         db.execute("DELETE FROM categories");
 658                                 }
 659
 660                                 for (var i = 0; i < cats.length; i++) {
 661                                         var id = cats[i].getAttribute("id");
 662                                         var collapsed = cats[i].getAttribute("collapsed");
 663                                         var title = cats[i].firstChild.nodeValue;
 664
 665                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 666                                                 "VALUES (?,?,?)",
 667                                                 [id, title, collapsed]);
 668                                 }
 669
 670                                 var labels = transport.responseXML.getElementsByTagName("label");
 671
 672                                 if (labels.length > 0) {
 673                                         db.execute("DELETE FROM labels");
 674                                 }
 675
 676                                 for (var i = 0; i < labels.length; i++) {
 677                                         var id = labels[i].getAttribute("id");
 678                                         var fg_color = labels[i].getAttribute("fg_color");
 679                                         var bg_color = labels[i].getAttribute("bg_color");
 680                                         var caption = labels[i].firstChild.nodeValue;
 681
 682                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 683                                                 "VALUES (?,?,?,?)",
 684                                                 [id, caption, fg_color, bg_color]);
 685                                 }
 686
 687                                 sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 10*1000);
 688                         } else {
 689
 690                                 var articles = transport.responseXML.getElementsByTagName("article");
 691
 692                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 693
 694                                 if (limit) {
 695                                         limit = limit.getAttribute("value");
 696                                 } else {
 697                                         limit = 0;
 698                                 }
 699
 700                                 var articles_found = 0;
 701
 702                                 for (var i = 0; i < articles.length; i++) {
 703                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 704                                         articles_found++;
 705                                         if (a) {
 706
 707                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 708
 709                                                 db.execute("INSERT INTO articles "+
 710                                                 "(id, feed_id, title, link, guid, updated, content, "+
 711                                                         "unread, marked, tags, comments) "+
 712                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 713                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 714                                                                 a.content, a.unread, a.marked, a.tags,
 715                                                                 a.comments]);
 716
 717                                                 if (a.labels.length > 0) {
 718                                                         for (var j = 0; j < a.labels.length; j++) {
 719                                                                 label_local_add_article(a.id, a.labels[j][0]);
 720                                                         }
 721                                                 }
 722
 723                                         }
 724                                 }
 725
 726                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 727
 728                                 articles_synced += articles_found;
 729
 730                                 var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
 731
 732                                 $("offlineModeSyncMsg").innerHTML = msg;
 733
 734                                 var has_sync_data = has_local_sync_data();
 735
 736                                 if (articles_found >= limit || has_sync_data) {
 737                                         sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
 738                                                 5*1000);
 739                                         debug("<b>update_offline_data: done " + stage + " HSD: " +
 740                                                 has_sync_data + "</b>");
 741                                 } else {
 742                                         window.setTimeout("offlineDownloadStart()", 180*1000);
 743                                         debug("update_offline_data: finished");
 744
 745                                         var pic = $("offlineModePic");
 746
 747                                         if (pic) {
 748                                                 pic.src = "images/offline.png";
 749
 750                                                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
 751                                                 var last_sync = "";
 752
 753                                                 if (rs.isValidRow()) {
 754                                                         last_sync = rs.field(0).substring(0,16);
 755                                                 }
 756                                                 rs.close();
 757
 758                                                 var msg = __("Last sync: %s").replace("%s", last_sync);
 759
 760                                                 articles_synced = 0;
 761
 762                                                 $("offlineModeSyncMsg").innerHTML = msg;
 763                                         }
 764
 765                                         var hide_elems = $$("div.hideWhenSyncing");
 766
 767                                         for (var j = 0; j < hide_elems.length; j++) {
 768                                                 Element.show(hide_elems[j]);
 769                                         }
 770
 771                                         sync_in_progress = false;
 772
 773                                         db.execute("DELETE FROM articles WHERE "+
 774                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 775
 776                                 }
 777                         }
 778
 779                         update_local_sync_data();
 780
 781
 782 //                      notify('');
 783
 784                 } else {
 785                         sync_in_progress = false;
 786
 787                         var pic = $("offlineModePic");
 788
 789                         if (pic) {
 790                                 pic.src = "images/offline.png";
 791                                 var msg = __("Last sync: Error receiving data");
 792                                 articles_synced = 0;
 793                                 $("offlineModeSyncMsg").innerHTML = msg;
 794                         }
 795
 796                         var hide_elems = $$("div.hideWhenSyncing");
 797
 798                         for (var j = 0; j < hide_elems.length; j++) {
 799                                 Element.show(hide_elems[j]);
 800                         }
 801
 802                 }
 803
 804         } catch (e) {
 805                 exception_error("offline_download_parse", e);
 806         }
 807 }
 808
 809 function update_offline_data(stage) {
 810         try {
 811
 812                 if (!stage) stage = 0;
 813
 814                 if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
 815
 816 //              notify_progress("Updating offline data... (" + stage +")", true);
 817
 818                 var query = "backend.php?op=rpc&subop=download";
 819
 820                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 821
 822                 if (rs.isValidRow() && rs.field(0)) {
 823                         var offline_dl_max_id = rs.field(0);
 824                         var offline_dl_min_id = rs.field(1);
 825
 826                         query = query + "&cidt=" + offline_dl_max_id;
 827                         query = query + "&cidb=" + offline_dl_min_id;
 828
 829                         stage = 1;
 830                 }
 831
 832                 rs.close();
 833
 834                 debug("update_offline_data: stage " + stage);
 835
 836                 query = query + "&stage=" + stage;
 837
 838                 var to_sync = prepare_local_sync_data();
 839
 840                 if (to_sync != "") {
 841                         to_sync = "?sync=" + param_escape(to_sync);
 842                 }
 843
 844                 debug(query + "/" + to_sync);
 845
 846                 var pic = $("offlineModePic");
 847
 848                 if (pic) {
 849                         pic.src = "images/offline-sync.gif";
 850                         if (articles_synced == 0) {
 851                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
 852                         }
 853                 }
 854
 855                 var hide_elems = $$("div.hideWhenSyncing");
 856
 857                 for (var j = 0; j < hide_elems.length; j++) {
 858                         Element.hide(hide_elems[j]);
 859                 }
 860
 861                 sync_in_progress = true;
 862
 863                 new Ajax.Request(query, {
 864                         parameters: to_sync,
 865                         onComplete: function(transport) {
 866                                 offline_download_parse(stage, transport);
 867                         } });
 868
 869         } catch (e) {
 870                 exception_error("initiate_offline_download", e);
 871         }
 872 }
 873
 874 function set_feedlist_counter(id, ctr, is_cat) {
 875         try {
 876
 877                 var feedctr = $("FEEDCTR-" + id);
 878                 var feedu = $("FEEDU-" + id);
 879                 var feedr = $("FEEDR-" + id);
 880
 881                 if (is_cat) {
 882                         var catctr = $("FCATCTR-" + id);
 883                         if (catctr) {
 884                                 catctr.innerHTML = "(" + ctr + ")";
 885                                 if (ctr > 0) {
 886                                         catctr.className = "catCtrHasUnread";
 887                                 } else {
 888                                         catctr.className = "catCtrNoUnread";
 889                                 }
 890                         }
 891                 } else if (feedctr && feedu && feedr) {
 892
 893                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 894
 895                         feedu.innerHTML = ctr;
 896
 897                         if (ctr > 0) {
 898                                 feedctr.className = "feedCtrHasUnread";
 899                                 if (!feedr.className.match("Unread")) {
 900                                         var is_selected = feedr.className.match("Selected");
 901
 902                                         feedr.className = feedr.className.replace("Selected", "");
 903                                         feedr.className = feedr.className.replace("Unread", "");
 904
 905                                         feedr.className = feedr.className + "Unread";
 906
 907                                         if (is_selected) {
 908                                                 feedr.className = feedr.className + "Selected";
 909                                         }
 910
 911                                 }
 912
 913                                 if (row_needs_hl) {
 914                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 915                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 916                                 }
 917                         } else {
 918                                 feedctr.className = "feedCtrNoUnread";
 919                                 feedr.className = feedr.className.replace("Unread", "");
 920                         }
 921                 }
 922
 923         } catch (e) {
 924                 exception_error("set_feedlist_counter", e);
 925         }
 926 }
 927
 928 function update_local_feedlist_counters() {
 929         try {
 930                 if (!offline_mode || !db) return;
 931
 932 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 933                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 934                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 935                         "ORDER BY feeds.title"); */
 936
 937                 var rs = db.execute("SELECT id FROM feeds "+
 938                         "ORDER BY title");
 939
 940                 while (rs.isValidRow()) {
 941                         var id = rs.field(0);
 942                         var ctr = get_local_feed_unread(id);
 943                         set_feedlist_counter(id, ctr, false);
 944                         rs.next();
 945                 }
 946
 947                 rs.close();
 948
 949                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 950                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 951
 952                 while (rs.isValidRow()) {
 953                         var id = rs.field(0);
 954                         var ctr = rs.field(1);
 955                         set_feedlist_counter(id, ctr, true);
 956                         rs.next();
 957                 }
 958
 959                 rs.close();
 960
 961                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 962
 963                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 964                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 965
 966                 var rs = db.execute("SELECT id FROM labels");
 967
 968                 while (rs.isValidRow()) {
 969                         var id = -11 - rs.field(0);
 970                         var ctr = get_local_feed_unread(id);
 971                         set_feedlist_counter(id, ctr, false);
 972                         rs.next();
 973                 }
 974
 975                 rs.close();
 976
 977                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 978
 979                 global_unread = get_local_feed_unread(-4);
 980                 updateTitle();
 981
 982         } catch (e) {
 983                 exception_error("update_local_feedlist_counters", e);
 984         }
 985 }
 986
 987 function get_local_feed_unread(id) {
 988         try {
 989                 var rs;
 990
 991                 if (id == -4) {
 992                         rs = db.execute("SELECT SUM(unread) FROM articles");
 993                 } else if (id == -1) {
 994                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
 995                 } else if (id > 0) {
 996                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
 997                 } else if (id < -10) {
 998                         var label_id = -11 - id;
 999                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
1000                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
1001                 }
1002
1003                 var a = false;
1004
1005                 if (rs.isValidRow()) {
1006                         a = rs.field(0);
1007                 } else {
1008                         a = 0;
1009                 }
1010
1011                 rs.close();
1012
1013                 return a;
1014
1015         } catch (e) {
1016                 exception_error("get_local_feed_unread", e);
1017         }
1018 }
1019
1020 function enable_offline_reading() {
1021         try {
1022
1023                 if (db && getInitParam("offline_enabled") == "1") {
1024                         init_local_sync_data();
1025                         Element.show("offlineModePic");
1026                         offlineDownloadStart();
1027                 }
1028
1029         } catch (e) {
1030                 exception_error("enable_offline_reading", e);
1031         }
1032 }
1033
1034 function init_gears() {
1035         try {
1036
1037                 if (window.google && google.gears) {
1038                         localServer = google.gears.factory.create("beta.localserver");
1039                         store = localServer.createManagedStore("tt-rss");
1040                         store.manifestUrl = "manifest.json.php";
1041
1042                         db = google.gears.factory.create('beta.database');
1043                         db.open('tt-rss');
1044
1045                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1046
1047                         var rs = db.execute("SELECT schema_version FROM version");
1048
1049                         var version = "";
1050
1051                         if (rs.isValidRow()) {
1052                                 version = rs.field(0);
1053                         }
1054
1055                         rs.close();
1056
1057                         if (version != SCHEMA_VERSION) {
1058                                 db.execute("DROP TABLE IF EXISTS init_params");
1059                                 db.execute("DROP TABLE IF EXISTS cache");
1060                                 db.execute("DROP TABLE IF EXISTS feeds");
1061                                 db.execute("DROP TABLE IF EXISTS categories");
1062                                 db.execute("DROP TABLE IF EXISTS labels");
1063                                 db.execute("DROP TABLE IF EXISTS article_labels");
1064                                 db.execute("DROP TABLE IF EXISTS articles");
1065                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
1066                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
1067                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
1068                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
1069                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
1070                                 db.execute("DROP TABLE IF EXISTS version");
1071                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
1072                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
1073                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
1074                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1075                                 db.execute("DROP TABLE IF EXISTS syncdata");
1076                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
1077                                         [SCHEMA_VERSION]);
1078                         }
1079
1080                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
1081
1082                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
1083                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
1084                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
1085                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
1086                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
1087                         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)");
1088
1089                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
1090                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
1091                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
1092                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
1093                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
1094
1095                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
1096
1097                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1098
1099                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1100                                 "UPDATE OF unread ON articles "+
1101                                 "BEGIN "+
1102                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1103                                 "WHERE id = OLD.id AND "+
1104                                 "OLD.unread != NEW.unread;"+
1105                                 "END;");
1106
1107                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1108                                 "UPDATE OF marked ON articles "+
1109                                 "BEGIN "+
1110                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1111                                 "WHERE id = OLD.id;"+
1112                                 "END;");
1113
1114                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1115                                 "DELETE ON articles "+
1116                                 "BEGIN "+
1117                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1118                                 "END; ");
1119
1120                 }
1121
1122                 cache_expire();
1123
1124         } catch (e) {
1125                 exception_error("init_gears", e);
1126         }
1127 }
1128
1129 function gotoOffline() {
1130
1131 //      debug("[Local store] currentVersion = " + store.currentVersion);
1132
1133         if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
1134
1135                 store.checkForUpdate();
1136
1137                 notify_progress("Preparing offline mode...");
1138
1139                 var timerId = window.setInterval(function() {
1140                         if (store.currentVersion) {
1141                                 window.clearInterval(timerId);
1142                                 //debug("[Local store] sync complete: " + store.currentVersion);
1143                                 window.location.href = "tt-rss.php";
1144                         } else if (store.updateStatus == 3) {
1145                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1146                         } }, 500);
1147         }
1148 }
1149
1150 function gotoOnline() {
1151         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?"))) {
1152                 localServer.removeManagedStore("tt-rss");
1153                 window.location.href = "tt-rss.php";
1154         }
1155 }
1156
1157 function local_collapse_cat(id) {
1158         try {
1159                 if (db) {
1160                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1161                                 [id]);
1162                 }
1163         } catch (e) {
1164                 exception_error("local_collapse_cat", e);
1165         }
1166 }
1167
1168 function get_local_category_title(id) {
1169         try {
1170
1171                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1172                 var tmp = "";
1173
1174                 if (rs.isValidRow()) {
1175                         tmp = rs.field(0);
1176                 }
1177
1178                 rs.close();
1179
1180                 return tmp;
1181
1182         } catch (e) {
1183                 exception_error("get_local_category_title", e);
1184         }
1185 }
1186
1187 function get_local_category_unread(id) {
1188         try {
1189                 var rs = false;
1190
1191                 if (id >= 0) {
1192                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1193                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1194                 } else if (id == -2) {
1195                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1196                                 "where article_labels.id = articles.id");
1197                 } else {
1198                         return 0;
1199                 }
1200
1201                 var tmp = 0;
1202
1203                 if (rs.isValidRow()) {
1204                         tmp = rs.field(0);
1205                 }
1206
1207                 rs.close();
1208
1209                 return tmp;
1210
1211         } catch (e) {
1212                 exception_error("get_local_category_unread", e);
1213         }
1214 }
1215
1216 function printCategoryHeader(cat_id, hidden, can_browse) {
1217         try {
1218                 if (hidden == undefined) hidden = false;
1219                 if (can_browse == undefined) can_browse = false;
1220
1221                         var tmp_category = get_local_category_title(cat_id);
1222                         var tmp = "";
1223
1224                         var cat_unread = get_local_category_unread(cat_id);
1225
1226                         var holder_style = "";
1227                         var ellipsis = "";
1228
1229                         if (hidden) {
1230                                 holder_style = "display:none;";
1231                                 ellipsis = "…";
1232                         }
1233
1234                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1235
1236                         var browse_cat_link = "";
1237                         var inner_title_class = "catTitleNL";
1238
1239                         if (can_browse) {
1240                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1241                                 inner_title_class = "catTitle";
1242                         }
1243
1244                         var cat_class = "feedCat";
1245
1246                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1247                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1248                                         " title=\""+__('Click to collapse category')+"\""+
1249                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1250                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1251                                 "\">"+tmp_category+"</span>";
1252
1253                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1254
1255                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1256                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1257
1258                         tmp += "</span>";
1259
1260                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1261                                 "style='"+holder_style+"'>";
1262
1263                         return tmp;
1264         } catch (e) {
1265                 exception_error("printCategoryHeader", e);
1266         }
1267 }
1268
1269 function is_local_cat_collapsed(id) {
1270         try {
1271
1272                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1273                 var cat_hidden = 0;
1274
1275                 if (rs.isValidRow()) {
1276                         cat_hidden = rs.field(0);
1277                 }
1278
1279                 rs.close();
1280
1281                 return cat_hidden == "1";
1282
1283         } catch (e) {
1284                 exception_error("is_local_cat_collapsed", e);
1285         }
1286 }
1287
1288 function get_local_article_labels(id) {
1289         try {
1290                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1291                         "FROM labels, article_labels "+
1292                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1293
1294                 var tmp = new Array();
1295
1296                 while (rs.isValidRow()) {
1297                         var e = new Array();
1298
1299                         e[0] = rs.field(0);
1300                         e[1] = rs.field(1);
1301                         e[2] = rs.field(2);
1302                         e[3] = rs.field(3);
1303
1304                         tmp.push(e);
1305
1306                         rs.next();
1307                 }
1308
1309                 return tmp;
1310
1311         } catch (e) {
1312                 exception_error("get_local_article_labels", e);
1313         }
1314 }
1315
1316 function label_local_add_article(id, label_id) {
1317         try {
1318                 //debug("label_local_add_article " + id + " => " + label_id);
1319
1320                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1321                         "id = ? AND label_id = ?", [id, label_id]);
1322                 var check = rs.field(0);
1323
1324                 if (rs.isValidRow()) {
1325                         var check = rs.field(0);
1326                 }
1327                 rs.close();
1328
1329                 if (check == 0) {
1330                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1331                                 "(?,?)", [id, label_id]);
1332                 }
1333
1334         } catch (e) {
1335                 exception_error("label_local_add_article", e);
1336         }
1337 }
1338
1339 function get_local_feed_title(id) {
1340         try {
1341
1342                 var feed_title = "Unknown feed: " + id;
1343
1344                 if (id > 0) {
1345                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1346
1347                         if (rs.isValidRow()) {
1348                                 feed_title = rs.field(0);
1349                         }
1350
1351                         rs.close();
1352                 } else if (id == -1) {
1353                         feed_title = __("Starred articles");
1354                 } else if (id == -4) {
1355                         feed_title = __("All articles");
1356                 } else if (id < -10) {
1357
1358                         var label_id = -11 - id;
1359
1360                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1361
1362                         if (rs.isValidRow()) {
1363                                 feed_title = rs.field(0);
1364                         }
1365
1366                         rs.close();
1367                 }
1368
1369                 return feed_title;
1370
1371         } catch (e) {
1372                 exception_error("get_local_feed_title", e);
1373         }
1374 }
1375
1376 function format_article_labels(labels, id) {
1377         try {
1378
1379                 var labels_str = "";
1380
1381                 if (!labels) return "";
1382
1383                 for (var i = 0; i < labels.length; i++) {
1384                         var l = labels[i];
1385
1386                         labels_str += "<span class='hlLabelRef' "+
1387                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1388                 }
1389
1390                 return labels_str;
1391
1392         } catch (e) {
1393                 exception_error("format_article_labels", e);
1394         }
1395 }
1396
1397 function init_local_sync_data() {
1398         try {
1399
1400                 if (!db) return;
1401
1402                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1403                 var has_last_online = 0;
1404
1405                 if (rs.isValidRow()) {
1406                         has_last_online = rs.field(0);
1407                 }
1408
1409                 rs.close();
1410
1411                 if (!has_last_online) {
1412                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1413                 }
1414
1415         } catch (e) {
1416                 exception_error("init_local_sync_data", e);
1417
1418         }
1419 }
1420
1421 function has_local_sync_data() {
1422         try {
1423
1424                 var rs = db.execute("SELECT id FROM articles "+
1425                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1426                         "LIMIT 1");
1427
1428                 var tmp = 0;
1429
1430                 if (rs.isValidRow()) {
1431                         tmp = rs.field(0);
1432                 }
1433
1434                 rs.close();
1435
1436                 return tmp != 0;
1437
1438         } catch (e) {
1439                 exception_error("has_local_sync_data", e);
1440         }
1441 }
1442
1443 function prepare_local_sync_data() {
1444         try {
1445                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1446
1447                 var last_online = "";
1448
1449                 if (rs.isValidRow()) {
1450                         last_online = rs.field(0);
1451                 }
1452
1453                 rs.close();
1454
1455                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1456                         "WHERE modified > ? LIMIT 200", [last_online]);
1457
1458                 var tmp = last_online + ";";
1459
1460                 var entries = 0;
1461
1462                 while (rs.isValidRow()) {
1463                         var e = new Array();
1464
1465                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1466                         entries++;
1467
1468                         rs.next();
1469                 }
1470
1471                 rs.close();
1472
1473                 if (entries > 0) {
1474                         return tmp;
1475                 } else {
1476                         return '';
1477                 }
1478
1479         } catch (e) {
1480                 exception_error("prepare_local_sync_data", e);
1481         }
1482 }
1483
1484 function update_local_sync_data() {
1485         try {
1486                 if (db && !offline_mode) {
1487
1488                         var rs = db.execute("SELECT id FROM articles "+
1489                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1490                                         "key = 'last_online') LIMIT 1")
1491
1492                         var f_id = 0;
1493
1494                         if (rs.isValidRow()) {
1495                                 f_id = rs.field(0);
1496                         }
1497
1498                         rs.close();
1499
1500                         /* no pending articles to sync */
1501
1502                         if (f_id == 0) {
1503                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1504                                         "WHERE key = 'last_online'");
1505                         }
1506
1507                 }
1508         } catch (e) {
1509                 exception_error("update_local_sync_data", e);
1510         }
1511 }
1512
1513 function catchup_local_feed(id, is_cat) {
1514         try {
1515                 if (!db) return;
1516
1517                 if (!is_cat) {
1518                         if (id >= 0) {
1519                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1520                         } else if (id == -1) {
1521                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1522                         } else if (id == -4) {
1523                                 db.execute("UPDATE articles SET unread = 0");
1524                         } else if (id < -10) {
1525                                 var label_id = -11-id;
1526
1527                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1528                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1529                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1530                         }
1531                 }
1532
1533                 update_local_feedlist_counters();
1534
1535         } catch (e) {
1536                 exception_error("catchup_local_feed", e);
1537         }
1538 }
1539
1540 function toggleOfflineModeInfo() {
1541         try {
1542                 var e = $('offlineModeDrop');
1543                 var p = $('offlineModePic');
1544
1545                 if (Element.visible(e)) {
1546                         Element.hide(e);
1547                 } else {
1548                         Element.show(e);
1549                 }
1550
1551         } catch (e) {
1552                 exception_error("toggleOfflineModeInfo", e);
1553         }
1554 }
1555
1556 function offlineDownloadStart() {
1557         try {
1558                 if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
1559                         window.setTimeout("update_offline_data(0)", 100);
1560                 }
1561         } catch (e) {
1562                 exception_error("offlineDownloadStart", e);
1563         }
1564 }
1565
1566 function offlineDownloadStop() {
1567         try {
1568                 if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
1569                         window.clearTimeout(sync_timer);
1570                 }
1571         } catch (e) {
1572                 exception_error("offlineDownloadStart", e);
1573         }
1574 }
1575
1576 function offlineClearData() {
1577         try {
1578                 if (db) {
1579
1580                         if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
1581
1582                                 notify_progress("Removing offline data...");
1583
1584                                 localServer.removeManagedStore("tt-rss");
1585
1586                                 db.execute("DELETE FROM articles");
1587                                 db.execute("DELETE FROM article_labels");
1588                                 db.execute("DELETE FROM labels");
1589                                 db.execute("DELETE FROM feeds");
1590
1591                                 notify_info("Offline data removed.");
1592                         }
1593                 }
1594         } catch (e) {
1595                 exception_error("offlineClearData", e);
1596         }
1597 }
1598
1599 function offlineUpdateStore() {
1600         try {
1601
1602                 if (offline_mode) return;
1603
1604         } catch (e) {
1605                 exception_error("offlineUpdateStore", e);
1606         }
1607 }