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 = $("headlines-frame");
 117                 try {
 118                         if (reply.offset == 0) {
 119                                 debug("resetting headlines scrollTop");
 120                                 f.scrollTop = 0;
 121                         }
 122                 } catch (e) { };
 123
 124
 125                 var tmp = "";
 126                 var feed_title = "";
 127
 128                 if (is_cat) {
 129                         feed_title = get_local_category_title(feed_id);
 130                 } else {
 131                         feed_title = get_local_feed_title(feed_id);
 132                 }
 133
 134                 if (feed_title) {
 135
 136                         if (offset == 0) {
 137                                 tmp += "<div id=\"headlinesContainer\">";
 138
 139                                 tmp += "<div class=\"headlinesSubToolbar\">";
 140                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 141                                 tmp += feed_title;
 142                                 tmp += "</div>";
 143
 144                                 var sel_all_link;
 145                                 var sel_unread_link;
 146                                 var sel_none_link;
 147                                 var sel_inv_link;
 148
 149                                 var catchup_feed_link = "javascript:catchupCurrentFeed()";
 150                                 var catchup_sel_link = "javascript:catchupSelection()";
 151
 152                                 var tog_unread_link;
 153                                 var tog_marked_link;
 154
 155                                 if ($("content-frame")) {
 156                                         sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
 157                                         sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
 158                                         sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
 159                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 160
 161                                         tog_unread_link = "javascript:selectionToggleUnread()";
 162                                         tog_marked_link = "javascript:selectionToggleMarked()";
 163
 164                                 } else {
 165                                         sel_all_link = "javascript:cdmSelectArticles('all')";
 166                                         sel_unread_link = "javascript:cdmSelectArticles('unread')";
 167                                         sel_none_link = "javascript:cdmSelectArticles('none')";
 168                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 169
 170                                         tog_unread_link = "javascript:selectionToggleUnread(true)";
 171                                         tog_marked_link = "javascript:selectionToggleMarked(true)";
 172                                 }
 173
 174                                 tmp += __('Select:')+
 175                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 176                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 177                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 178                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 179
 180                                 tmp += "&nbsp;&nbsp;";
 181
 182                                 tmp += "<span onmouseover=\"enable_selection(false)\" "+
 183                                         "onmouseout=\"enable_selection(true) \"" +
 184                                         "onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">" +
 185                                         __("Actions...") + "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">" +
 186                                 "</span>";
 187
 188                                 tmp += "<ul id=\"headlineActionsBody\" style=\"display : none\">";
 189
 190                                 tmp += "<li class=\"insensitive\">"+__('Selection toggle:')+"</li>"+
 191                                 "<li onclick=\""+tog_unread_link+"\">&nbsp;&nbsp;"+__('Unread')+"</li>"+
 192                                 "<li onclick=\""+tog_marked_link+"\">&nbsp;&nbsp;"+__('Starred')+"</li>"+
 193                                 "<li class=\"insensitive\">"+__('Mark as read:')+"</li>"+
 194                                 "<li onclick=\""+catchup_sel_link+"\">&nbsp;&nbsp;"+__('Selection')+"</li>";
 195
 196                                 tmp += "<li onclick=\""+catchup_feed_link+"\">&nbsp;&nbsp;"+__('Entire feed')+
 197                                         "</li>";
 198
 199                                 tmp += "</ul>";
 200
 201                                 tmp += "</div>";
 202
 203                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 204                                 if ($("content-frame")) {
 205                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 206                                 }
 207
 208                         }
 209
 210                         var limit = 30;
 211
 212                         var toolbar_form = document.forms["main_toolbar_form"];
 213
 214                         var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 215                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 216
 217                         var limit_qpart = "";
 218                         var strategy_qpart = "";
 219                         var mode_qpart = "";
 220                         var offset_qpart = "";
 221
 222                         if (limit != 0) {
 223                                 limit_qpart = "LIMIT " + limit;
 224                         }
 225
 226                         if (view_mode == "all_articles") {
 227                                 mode_qpart = "1";
 228                         } else if (view_mode == "adaptive") {
 229                                 if (is_cat && get_local_category_unread(feed_id) ||
 230                                         get_local_feed_unread(feed_id) > 0) {
 231                                                 mode_qpart = "unread = 1";
 232                                 } else {
 233                                         mode_qpart = "1";
 234                                 }
 235
 236                         } else if (view_mode == "marked") {
 237                                 mode_qpart = "marked = 1";
 238                         } else if (view_mode == "unread") {
 239                                 mode_qpart = "unread = 1";
 240                         } else {
 241                                 mode_qpart = "1";
 242                         }
 243
 244                         var ext_tables_qpart = "";
 245
 246                         if (is_cat) {
 247                                 if (feed_id >= 0) {
 248                                         strategy_qpart = "cat_id = " + feed_id;
 249                                 } else if (feed_id == -2) {
 250                                         strategy_qpart = "article_labels.id = articles.id";
 251                                         ext_tables_qpart = ",article_labels";
 252                                 }
 253                         } else if (feed_id > 0) {
 254                                 strategy_qpart = "feed_id = " + feed_id;
 255                         } else if (feed_id == -1) {
 256                                 strategy_qpart = "marked = 1";
 257                         } else if (feed_id == -4) {
 258                                 strategy_qpart = "1";
 259                         } else if (feed_id < -10) {
 260                                 var label_id = -11 - feed_id;
 261                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 262                                 ext_tables_qpart = ",article_labels";
 263                         }
 264
 265                         if (offset > 0) {
 266                                 offset_qpart = "OFFSET " + (offset*30);
 267                         } else {
 268                                 offset_qpart = "";
 269                         }
 270
 271                         var query = "SELECT *,feeds.title AS feed_title "+
 272                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 273                                 "WHERE " +
 274                                 "cat_id = categories.id AND " +
 275                                 "feed_id = feeds.id AND " +
 276                                 strategy_qpart +
 277                                 " AND " + mode_qpart +
 278                                 " ORDER BY updated DESC "+
 279                                 limit_qpart + " " +
 280                                 offset_qpart;
 281
 282                         var rs = db.execute(query);
 283
 284                         var line_num = offset*30;
 285
 286                         var real_feed_id = feed_id;
 287
 288                         while (rs.isValidRow()) {
 289
 290                                 var id = rs.fieldByName("id");
 291                                 var feed_id = rs.fieldByName("feed_id");
 292
 293                                 var entry_feed_title = false;
 294
 295                                 if (real_feed_id < 0 || is_cat) {
 296                                         entry_feed_title = rs.fieldByName("feed_title");
 297                                 }
 298
 299                                 var marked_pic;
 300
 301                                 var row_class = (line_num % 2) ? "even" : "odd";
 302
 303                                 if (rs.fieldByName("unread") == "1") {
 304                                         row_class += "Unread";
 305                                 }
 306
 307                                 var labels = get_local_article_labels(id);
 308
 309                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 310                                 labels_str += format_article_labels(labels, id);
 311                                 labels_str += "</span>";
 312
 313                                 if (rs.fieldByName("marked") == "1") {
 314                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 315                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 316                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 317                                 } else {
 318                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 319                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 320                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 321                                 }
 322
 323                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 324                                         "onmouseout='postMouseOut($id)'";
 325
 326                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 327                                                 100);
 328
 329                                 if ($("content-frame")) {
 330
 331                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 332
 333                                         tmp += "<td class='hlUpdPic'> </td>";
 334
 335                                         tmp += "<td class='hlSelectRow'>"+
 336                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 337
 338                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 339
 340                                         tmp += "<td onclick='view("+id+","+feed_id+")' "+
 341                                                 "class='hlContent' valign='middle'>";
 342
 343                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 344                                                 rs.fieldByName("link") + "\"" +
 345                                                 "onclick=\"return view("+id+","+feed_id+");\">"+
 346                                                 rs.fieldByName("title");
 347
 348                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 349
 350                                         tmp += "</a>";
 351
 352                                         tmp += labels_str;
 353
 354                                         if (entry_feed_title) {
 355                                                 tmp += " <span class=\"hlFeed\">"+
 356                                                         "(<a href='javascript:viewfeed("+feed_id+
 357                                                         ")'>"+entry_feed_title+"</a>)</span>";
 358                                         }
 359
 360                                         tmp += "</td>";
 361
 362                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
 363                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 364                                                 "</nobr></td>";
 365
 366                                         tmp += "</tr>";
 367                                 } else {
 368
 369                                         var add_class = "";
 370
 371                                         if (rs.fieldByName("unread") == "1") {
 372                                                 add_class = "Unread";
 373                                         }
 374
 375                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 376                                                 mouseover_attrs+"'>";
 377
 378                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 379                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 380                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 381                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 382
 383                                         tmp += "<div class=\"cdmHeader\">";
 384                                         tmp += "<div class=\"articleUpdated\">"+
 385                                                 rs.fieldByName("updated").substring(0,16)+
 386                                                 " "+cdm_feed_icon+"</div>";
 387
 388                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 389                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 390                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 391                                                 "\">"+rs.fieldByName("title")+"</a>";
 392
 393                                         tmp += labels_str;
 394
 395                                         if (entry_feed_title) {
 396                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 397                                                         ")'>"+entry_feed_title+"</a>)";
 398                                         }
 399
 400                                         tmp += "</span></div>";
 401
 402                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 403                                                 "id=\"CICD-"+id+"\">";
 404                                         tmp += rs.fieldByName("content");
 405                                         tmp += "<br clear='both'>"
 406                                         tmp += "</div>";
 407
 408                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 409                                         tmp += __("Select:")+
 410                                                 " <input type=\"checkbox\" "+
 411                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 412                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 413
 414                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 415
 416 /*                                      tmp += "<span class='s1'>"+
 417                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 418                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 419                                                 "</span>"; */
 420
 421                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 422                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 423                                                 "Unread</a></span>";
 424                                         tmp += "</div>";
 425
 426                                         tmp += "</div>";
 427                                 }
 428
 429                                 rs.next();
 430                                 line_num++;
 431                         }
 432
 433                         if (line_num - offset*30 < 30) {
 434                                 _infscroll_disable = 1;
 435                         }
 436
 437                         rs.close();
 438
 439                         if (offset == 0) {
 440                                 tmp += "</table>";
 441
 442                                 if (line_num - offset*30 == 0) {
 443                                         tmp += "<div class='whiteBox'>" +
 444                                                 __("No articles found to display.") +
 445                                                 "</div>";
 446                                 }
 447                                 tmp += "</div></div>";
 448                         }
 449
 450                         if (offset == 0) {
 451                                 var container = $("headlines-frame");
 452                                 container.innerHTML = tmp;
 453                         } else {
 454                                 var ids = getSelectedArticleIds2();
 455
 456                                 var container = $("headlinesList");
 457                                 container.innerHTML = container.innerHTML + tmp;
 458
 459                                 for (var i = 0; i < ids.length; i++) {
 460                                         markHeadline(ids[i]);
 461                                 }
 462                         }
 463                 }
 464
 465                 remove_splash();
 466
 467                 _infscroll_request_sent = 0;
 468
 469         } catch (e) {
 470                 exception_error("viewfeed_offline", e);
 471         }
 472 }
 473
 474 function render_offline_feedlist() {
 475         try {
 476                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 477
 478                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 479
 480                 var unread = get_local_feed_unread(-4);
 481
 482                 global_unread = unread;
 483                 updateTitle();
 484
 485                 if (cats_enabled) {
 486                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 487                 }
 488
 489                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 490                         "images/tag.png");
 491
 492                 var unread = get_local_feed_unread(-1);
 493
 494                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 495                         "images/mark_set.png");
 496
 497                 if (cats_enabled) {
 498                         tmp += "</ul></li>";
 499                 } else {
 500                         tmp += "<li><hr/></li>";
 501                 }
 502
 503                 if (cats_enabled) {
 504                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 505                 }
 506
 507                 var rs = db.execute("SELECT id,caption "+
 508                         "FROM labels "+
 509                         "ORDER BY caption");
 510
 511                 while (rs.isValidRow()) {
 512                         var id = -11 - parseInt(rs.field(0));
 513                         var caption = rs.field(1);
 514                         var unread = get_local_feed_unread(id);
 515
 516                         tmp += printFeedEntry(id, caption, "feed", unread,
 517                                 "images/label.png");
 518
 519                         rs.next();
 520                 }
 521
 522                 rs.close();
 523
 524                 if (cats_enabled) {
 525                         tmp += "</ul></li>";
 526                 } else {
 527                         tmp += "<li><hr/></li>";
 528                 }
 529
 530 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 531                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 532                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 533                         "ORDER BY feeds.title"); */
 534
 535                 var order_by = "feeds.title";
 536
 537                 if (cats_enabled) order_by = "categories.title," + order_by;
 538
 539                 var rs = db.execute("SELECT "+
 540                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 541                         "FROM feeds,categories WHERE cat_id = categories.id "+
 542                         "ORDER BY "+order_by);
 543
 544                 var tmp_cat_id = -1;
 545
 546                 while (rs.isValidRow()) {
 547
 548                         var id = rs.field(0);
 549                         var title = rs.field(1);
 550                         var has_icon = rs.field(2);
 551                         var unread = get_local_feed_unread(id);
 552                         var cat_id = rs.field(3);
 553                         var cat_hidden = rs.field(4);
 554
 555                         if (cat_id != tmp_cat_id && cats_enabled) {
 556                                 if (tmp_cat_id != -1) {
 557                                         tmp += "</ul></li>";
 558                                 }
 559                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 560                                 tmp_cat_id = cat_id;
 561                         }
 562
 563                         var icon = "";
 564
 565                         if (has_icon) {
 566                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 567                         }
 568
 569                         var feed_icon = "";
 570
 571                         var row_class = "feed";
 572
 573                         if (unread > 0) {
 574                                 row_class += "Unread";
 575                                 fctr_class = "feedCtrHasUnread";
 576                         } else {
 577                                 fctr_class = "feedCtrNoUnread";
 578                         }
 579
 580                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 581
 582                         rs.next();
 583                 }
 584
 585                 rs.close();
 586
 587                 if (cats_enabled) {
 588                         tmp += "</ul>";
 589                 }
 590
 591                 tmp += "</ul>";
 592
 593                 render_feedlist(tmp);
 594         } catch (e) {
 595                 exception_error("render_offline_feedlist", e);
 596         }
 597 }
 598
 599 function init_offline() {
 600         try {
 601                 offline_mode = true;
 602                 store.enabled = true;
 603
 604                 Element.hide("dispSwitchPrompt");
 605                 Element.hide("feedBrowserPrompt");
 606
 607                 Element.hide("topLinksOnline");
 608                 Element.show("topLinksOffline");
 609
 610                 var tb_form = $("main_toolbar_form");
 611                 Element.hide(tb_form.update);
 612
 613                 var chooser = $("quickMenuChooser");
 614                 chooser.disabled = true;
 615
 616                 var rs = db.execute("SELECT key, value FROM init_params");
 617
 618                 while (rs.isValidRow()) {
 619                         init_params[rs.field(0)] = rs.field(1);
 620                         rs.next();
 621                 }
 622
 623                 rs.close();
 624
 625                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 626
 627                 var num_feeds = 0;
 628
 629                 if (rs.isValidRow()) {
 630                         num_feeds = rs.field(0);
 631                 }
 632
 633                 rs.close();
 634
 635                 if (num_feeds == 0) {
 636                         remove_splash();
 637                         return fatalError(0,
 638                                 __("Data for offline browsing has not been downloaded yet."));
 639                 }
 640
 641                 render_offline_feedlist();
 642                 init_second_stage();
 643                 window.setTimeout("viewfeed(-4)", 50);
 644
 645         } catch (e) {
 646                 exception_error("init_offline", e);
 647         }
 648 }
 649
 650 function offline_download_parse(stage, transport) {
 651         try {
 652                 if (transport.responseXML) {
 653
 654                         if (!sync_in_progress) return;
 655
 656                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 657
 658                         if (sync_ok.length > 0) {
 659                                 for (var i = 0; i < sync_ok.length; i++) {
 660                                         var id = sync_ok[i].getAttribute("id");
 661                                         if (id) {
 662                                                 debug("synced offline info for id " + id);
 663                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 664                                         }
 665                                 }
 666                         }
 667
 668                         if (stage == 0) {
 669
 670                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing feeds...");
 671
 672                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 673
 674                                 if (feeds.length > 0) {
 675                                         db.execute("DELETE FROM feeds");
 676                                 }
 677
 678                                 for (var i = 0; i < feeds.length; i++) {
 679                                         var id = feeds[i].getAttribute("id");
 680                                         var has_icon = feeds[i].getAttribute("has_icon");
 681                                         var title = feeds[i].firstChild.nodeValue;
 682                                         var cat_id = feeds[i].getAttribute("cat_id");
 683
 684                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 685                                                 "VALUES (?,?,?,?)",
 686                                                 [id, title, has_icon, cat_id]);
 687                                 }
 688
 689                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing categories...");
 690
 691                                 var cats = transport.responseXML.getElementsByTagName("category");
 692
 693                                 if (feeds.length > 0) {
 694                                         db.execute("DELETE FROM categories");
 695                                 }
 696
 697                                 for (var i = 0; i < cats.length; i++) {
 698                                         var id = cats[i].getAttribute("id");
 699                                         var collapsed = cats[i].getAttribute("collapsed");
 700                                         var title = cats[i].firstChild.nodeValue;
 701
 702                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 703                                                 "VALUES (?,?,?)",
 704                                                 [id, title, collapsed]);
 705                                 }
 706
 707                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing labels...");
 708
 709                                 var labels = transport.responseXML.getElementsByTagName("label");
 710
 711                                 if (labels.length > 0) {
 712                                         db.execute("DELETE FROM labels");
 713                                 }
 714
 715                                 for (var i = 0; i < labels.length; i++) {
 716                                         var id = labels[i].getAttribute("id");
 717                                         var fg_color = labels[i].getAttribute("fg_color");
 718                                         var bg_color = labels[i].getAttribute("bg_color");
 719                                         var caption = labels[i].firstChild.nodeValue;
 720
 721                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 722                                                 "VALUES (?,?,?,?)",
 723                                                 [id, caption, fg_color, bg_color]);
 724                                 }
 725
 726                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing articles...");
 727
 728                                 sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 2*1000);
 729                         } else {
 730
 731                                 var articles = transport.responseXML.getElementsByTagName("article");
 732
 733                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 734
 735                                 if (limit) {
 736                                         limit = limit.getAttribute("value");
 737                                 } else {
 738                                         limit = 0;
 739                                 }
 740
 741                                 var articles_found = 0;
 742
 743                                 for (var i = 0; i < articles.length; i++) {
 744                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 745                                         articles_found++;
 746                                         if (a) {
 747
 748                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 749
 750                                                 db.execute("INSERT INTO articles "+
 751                                                 "(id, feed_id, title, link, guid, updated, content, "+
 752                                                         "unread, marked, tags, comments) "+
 753                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 754                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 755                                                                 a.content, a.unread, a.marked, a.tags,
 756                                                                 a.comments]);
 757
 758                                                 if (a.labels.length > 0) {
 759                                                         for (var j = 0; j < a.labels.length; j++) {
 760                                                                 label_local_add_article(a.id, a.labels[j][0]);
 761                                                         }
 762                                                 }
 763
 764                                         }
 765                                 }
 766
 767                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 768
 769                                 articles_synced += articles_found;
 770
 771                                 var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
 772
 773                                 $("offlineModeSyncMsg").innerHTML = msg;
 774
 775                                 var has_sync_data = has_local_sync_data();
 776
 777                                 if (articles_found >= limit || has_sync_data) {
 778                                         sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
 779                                                 3*1000);
 780                                         debug("<b>update_offline_data: done " + stage + " HSD: " +
 781                                                 has_sync_data + "</b>");
 782                                 } else {
 783                                         window.setTimeout("offlineDownloadStart()", 180*1000);
 784                                         debug("update_offline_data: finished");
 785
 786                                         var pic = $("offlineModePic");
 787
 788                                         if (pic) {
 789                                                 pic.src = "images/offline.png";
 790
 791                                                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
 792                                                 var last_sync = "";
 793
 794                                                 if (rs.isValidRow()) {
 795                                                         last_sync = rs.field(0).substring(0,16);
 796                                                 }
 797                                                 rs.close();
 798
 799                                                 var msg = __("Last sync: %s").replace("%s", last_sync);
 800
 801                                                 articles_synced = 0;
 802
 803                                                 $("offlineModeSyncMsg").innerHTML = msg;
 804                                         }
 805
 806                                         offlineSyncShowHideElems(false);
 807
 808                                         sync_in_progress = false;
 809
 810                                         db.execute("DELETE FROM articles WHERE "+
 811                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 812
 813                                 }
 814                         }
 815
 816                         update_local_sync_data();
 817
 818
 819 //                      notify('');
 820
 821                 } else {
 822                         sync_in_progress = false;
 823
 824                         var pic = $("offlineModePic");
 825
 826                         if (pic) {
 827                                 pic.src = "images/offline.png";
 828                                 var msg = __("Last sync: Error receiving data.");
 829                                 articles_synced = 0;
 830                                 $("offlineModeSyncMsg").innerHTML = msg;
 831                         }
 832
 833                         offlineSyncShowHideElems(false);
 834                 }
 835
 836         } catch (e) {
 837                 exception_error("offline_download_parse", e);
 838         }
 839 }
 840
 841 function update_offline_data(stage) {
 842         try {
 843
 844                 if (stage) stage = 0;
 845
 846                 if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
 847
 848 //              notify_progress("Updating offline data... (" + stage +")", true);
 849
 850                 var query = "backend.php?op=rpc&subop=download";
 851
 852                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 853
 854                 if (rs.isValidRow() && rs.field(0)) {
 855                         var offline_dl_max_id = rs.field(0);
 856                         var offline_dl_min_id = rs.field(1);
 857
 858                         query = query + "&cidt=" + offline_dl_max_id;
 859                         query = query + "&cidb=" + offline_dl_min_id;
 860
 861                         if (stage > 1) stage = 1;
 862                 }
 863
 864                 rs.close();
 865
 866                 debug("update_offline_data: stage " + stage);
 867
 868                 query = query + "&stage=" + stage;
 869
 870                 var to_sync = prepare_local_sync_data();
 871
 872                 if (to_sync != "") {
 873                         to_sync = "?sync=" + param_escape(to_sync);
 874                 }
 875
 876                 debug(query + "/" + to_sync);
 877
 878                 var pic = $("offlineModePic");
 879
 880                 if (pic) {
 881                         pic.src = "images/offline-sync.gif";
 882                         if (articles_synced == 0) {
 883                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
 884                         }
 885                 }
 886
 887                 offlineSyncShowHideElems(true);
 888                 offlineUpdateStore();
 889
 890                 sync_in_progress = true;
 891
 892                 new Ajax.Request(query, {
 893                         parameters: to_sync,
 894                         onComplete: function(transport) {
 895                                 offline_download_parse(stage, transport);
 896                         } });
 897
 898         } catch (e) {
 899                 exception_error("initiate_offline_download", e);
 900         }
 901 }
 902
 903 function set_feedlist_counter(id, ctr, is_cat) {
 904         try {
 905
 906                 var feedctr = $("FEEDCTR-" + id);
 907                 var feedu = $("FEEDU-" + id);
 908                 var feedr = $("FEEDR-" + id);
 909
 910                 if (is_cat) {
 911                         var catctr = $("FCATCTR-" + id);
 912                         if (catctr) {
 913                                 catctr.innerHTML = "(" + ctr + ")";
 914                                 if (ctr > 0) {
 915                                         catctr.className = "catCtrHasUnread";
 916                                 } else {
 917                                         catctr.className = "catCtrNoUnread";
 918                                 }
 919                         }
 920                 } else if (feedctr && feedu && feedr) {
 921
 922                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 923
 924                         feedu.innerHTML = ctr;
 925
 926                         if (ctr > 0) {
 927                                 feedctr.className = "feedCtrHasUnread";
 928                                 if (!feedr.className.match("Unread")) {
 929                                         var is_selected = feedr.className.match("Selected");
 930
 931                                         feedr.className = feedr.className.replace("Selected", "");
 932                                         feedr.className = feedr.className.replace("Unread", "");
 933
 934                                         feedr.className = feedr.className + "Unread";
 935
 936                                         if (is_selected) {
 937                                                 feedr.className = feedr.className + "Selected";
 938                                         }
 939
 940                                 }
 941
 942                                 if (row_needs_hl) {
 943                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 944                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 945                                 }
 946                         } else {
 947                                 feedctr.className = "feedCtrNoUnread";
 948                                 feedr.className = feedr.className.replace("Unread", "");
 949                         }
 950                 }
 951
 952         } catch (e) {
 953                 exception_error("set_feedlist_counter", e);
 954         }
 955 }
 956
 957 function update_local_feedlist_counters() {
 958         try {
 959                 if (!offline_mode || !db) return;
 960
 961 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 962                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 963                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 964                         "ORDER BY feeds.title"); */
 965
 966                 var rs = db.execute("SELECT id FROM feeds "+
 967                         "ORDER BY title");
 968
 969                 while (rs.isValidRow()) {
 970                         var id = rs.field(0);
 971                         var ctr = get_local_feed_unread(id);
 972                         set_feedlist_counter(id, ctr, false);
 973                         rs.next();
 974                 }
 975
 976                 rs.close();
 977
 978                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 979                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 980
 981                 while (rs.isValidRow()) {
 982                         var id = rs.field(0);
 983                         var ctr = rs.field(1);
 984                         set_feedlist_counter(id, ctr, true);
 985                         rs.next();
 986                 }
 987
 988                 rs.close();
 989
 990                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 991
 992                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 993                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 994
 995                 var rs = db.execute("SELECT id FROM labels");
 996
 997                 while (rs.isValidRow()) {
 998                         var id = -11 - rs.field(0);
 999                         var ctr = get_local_feed_unread(id);
1000                         set_feedlist_counter(id, ctr, false);
1001                         rs.next();
1002                 }
1003
1004                 rs.close();
1005
1006                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
1007
1008                 global_unread = get_local_feed_unread(-4);
1009                 updateTitle();
1010
1011         } catch (e) {
1012                 exception_error("update_local_feedlist_counters", e);
1013         }
1014 }
1015
1016 function get_local_feed_unread(id) {
1017         try {
1018                 var rs;
1019
1020                 if (id == -4) {
1021                         rs = db.execute("SELECT SUM(unread) FROM articles");
1022                 } else if (id == -1) {
1023                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
1024                 } else if (id > 0) {
1025                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
1026                 } else if (id < -10) {
1027                         var label_id = -11 - id;
1028                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
1029                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
1030                 }
1031
1032                 var a = false;
1033
1034                 if (rs.isValidRow()) {
1035                         a = rs.field(0);
1036                 } else {
1037                         a = 0;
1038                 }
1039
1040                 rs.close();
1041
1042                 return a;
1043
1044         } catch (e) {
1045                 exception_error("get_local_feed_unread", e);
1046         }
1047 }
1048
1049 function enable_offline_reading() {
1050         try {
1051
1052                 if (db && getInitParam("offline_enabled") == "1") {
1053                         init_local_sync_data();
1054                         Element.show("offlineModePic");
1055                         offlineDownloadStart();
1056                 }
1057
1058         } catch (e) {
1059                 exception_error("enable_offline_reading", e);
1060         }
1061 }
1062
1063 function init_gears() {
1064         try {
1065
1066                 if (window.google && google.gears) {
1067
1068                         try {
1069                                 localServer = google.gears.factory.create("beta.localserver");
1070                         } catch (e) {
1071                                 return;
1072                         }
1073
1074                         store = localServer.createManagedStore("tt-rss");
1075                         store.manifestUrl = "manifest.json.php";
1076                         store.enabled = false;
1077
1078                         db = google.gears.factory.create('beta.database');
1079                         db.open('tt-rss');
1080
1081                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1082
1083                         var rs = db.execute("SELECT schema_version FROM version");
1084
1085                         var version = "";
1086
1087                         if (rs.isValidRow()) {
1088                                 version = rs.field(0);
1089                         }
1090
1091                         rs.close();
1092
1093                         if (version != SCHEMA_VERSION) {
1094                                 db.execute("DROP TABLE IF EXISTS init_params");
1095                                 db.execute("DROP TABLE IF EXISTS cache");
1096                                 db.execute("DROP TABLE IF EXISTS feeds");
1097                                 db.execute("DROP TABLE IF EXISTS categories");
1098                                 db.execute("DROP TABLE IF EXISTS labels");
1099                                 db.execute("DROP TABLE IF EXISTS article_labels");
1100                                 db.execute("DROP TABLE IF EXISTS articles");
1101                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
1102                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
1103                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
1104                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
1105                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
1106                                 db.execute("DROP TABLE IF EXISTS version");
1107                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
1108                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
1109                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
1110                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1111                                 db.execute("DROP TABLE IF EXISTS syncdata");
1112                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
1113                                         [SCHEMA_VERSION]);
1114                         }
1115
1116                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
1117
1118                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
1119                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
1120                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
1121                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
1122                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
1123                         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)");
1124
1125                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
1126                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
1127                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
1128                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
1129                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
1130
1131                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
1132
1133                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1134
1135                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1136                                 "UPDATE OF unread ON articles "+
1137                                 "BEGIN "+
1138                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1139                                 "WHERE id = OLD.id AND "+
1140                                 "OLD.unread != NEW.unread;"+
1141                                 "END;");
1142
1143                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1144                                 "UPDATE OF marked ON articles "+
1145                                 "BEGIN "+
1146                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1147                                 "WHERE id = OLD.id;"+
1148                                 "END;");
1149
1150                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1151                                 "DELETE ON articles "+
1152                                 "BEGIN "+
1153                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1154                                 "END; ");
1155
1156                 }
1157
1158                 cache_expire();
1159
1160         } catch (e) {
1161                 exception_error("init_gears", e);
1162         }
1163 }
1164
1165 function offlineArticlesStored() {
1166
1167         var rs = db.execute("SELECT COUNT(*) FROM articles");
1168         var count = 0;
1169         if (rs.isValidRow()) {
1170                 count = rs.field(0);
1171         }
1172
1173         rs.close();
1174
1175         return count;
1176 }
1177
1178 function gotoOffline() {
1179
1180 //      debug("[Local store] currentVersion = " + store.currentVersion);
1181
1182
1183         if (offlineArticlesStored() == 0) {
1184                 notify_error("You have to synchronize some articles before going into offline mode.");
1185                 return;
1186         }
1187
1188         if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
1189
1190                 store.enabled = true;
1191                 store.checkForUpdate();
1192
1193                 notify_progress("Preparing offline mode...", true);
1194
1195                 var timerId = window.setInterval(function() {
1196                         if (store.currentVersion) {
1197                                 window.clearInterval(timerId);
1198                                 debug("[Local store] sync complete: " + store.currentVersion);
1199
1200                                 //window.location.href = "tt-rss.php";
1201
1202                                 offlineDownloadStop();
1203                                 init_offline();
1204
1205                                 notify_info("Tiny Tiny RSS is in offline mode.");
1206
1207                         } else if (store.updateStatus == 3) {
1208                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1209                                 notify_error(store.lastErrorMessage, true);
1210                         } }, 500);
1211         }
1212 }
1213
1214 function gotoOnline() {
1215 //      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?"))) {
1216         if (confirm(__("Tiny Tiny RSS will reload. Go online?"))) {
1217                 //localServer.removeManagedStore("tt-rss");
1218                 window.location.href = "tt-rss.php";
1219         }
1220 }
1221
1222 function local_collapse_cat(id) {
1223         try {
1224                 if (db) {
1225                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1226                                 [id]);
1227                 }
1228         } catch (e) {
1229                 exception_error("local_collapse_cat", e);
1230         }
1231 }
1232
1233 function get_local_category_title(id) {
1234         try {
1235
1236                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1237                 var tmp = "";
1238
1239                 if (rs.isValidRow()) {
1240                         tmp = rs.field(0);
1241                 }
1242
1243                 rs.close();
1244
1245                 return tmp;
1246
1247         } catch (e) {
1248                 exception_error("get_local_category_title", e);
1249         }
1250 }
1251
1252 function get_local_category_unread(id) {
1253         try {
1254                 var rs = false;
1255
1256                 if (id >= 0) {
1257                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1258                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1259                 } else if (id == -2) {
1260                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1261                                 "where article_labels.id = articles.id");
1262                 } else {
1263                         return 0;
1264                 }
1265
1266                 var tmp = 0;
1267
1268                 if (rs.isValidRow()) {
1269                         tmp = rs.field(0);
1270                 }
1271
1272                 rs.close();
1273
1274                 return tmp;
1275
1276         } catch (e) {
1277                 exception_error("get_local_category_unread", e);
1278         }
1279 }
1280
1281 function printCategoryHeader(cat_id, hidden, can_browse) {
1282         try {
1283                 if (hidden == undefined) hidden = false;
1284                 if (can_browse == undefined) can_browse = false;
1285
1286                         var tmp_category = get_local_category_title(cat_id);
1287                         var tmp = "";
1288
1289                         var cat_unread = get_local_category_unread(cat_id);
1290
1291                         var holder_style = "";
1292                         var ellipsis = "";
1293
1294                         if (hidden) {
1295                                 holder_style = "display:none;";
1296                                 ellipsis = "…";
1297                         }
1298
1299                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1300
1301                         var browse_cat_link = "";
1302                         var inner_title_class = "catTitleNL";
1303
1304                         if (can_browse) {
1305                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1306                                 inner_title_class = "catTitle";
1307                         }
1308
1309                         var cat_class = "feedCat";
1310
1311                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1312                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1313                                         " title=\""+__('Click to collapse category')+"\""+
1314                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1315                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1316                                 "\">"+tmp_category+"</span>";
1317
1318                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1319
1320                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1321                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1322
1323                         tmp += "</span>";
1324
1325                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1326                                 "style='"+holder_style+"'>";
1327
1328                         return tmp;
1329         } catch (e) {
1330                 exception_error("printCategoryHeader", e);
1331         }
1332 }
1333
1334 function is_local_cat_collapsed(id) {
1335         try {
1336
1337                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1338                 var cat_hidden = 0;
1339
1340                 if (rs.isValidRow()) {
1341                         cat_hidden = rs.field(0);
1342                 }
1343
1344                 rs.close();
1345
1346                 return cat_hidden == "1";
1347
1348         } catch (e) {
1349                 exception_error("is_local_cat_collapsed", e);
1350         }
1351 }
1352
1353 function get_local_article_labels(id) {
1354         try {
1355                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1356                         "FROM labels, article_labels "+
1357                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1358
1359                 var tmp = new Array();
1360
1361                 while (rs.isValidRow()) {
1362                         var e = new Array();
1363
1364                         e[0] = rs.field(0);
1365                         e[1] = rs.field(1);
1366                         e[2] = rs.field(2);
1367                         e[3] = rs.field(3);
1368
1369                         tmp.push(e);
1370
1371                         rs.next();
1372                 }
1373
1374                 return tmp;
1375
1376         } catch (e) {
1377                 exception_error("get_local_article_labels", e);
1378         }
1379 }
1380
1381 function label_local_add_article(id, label_id) {
1382         try {
1383                 //debug("label_local_add_article " + id + " => " + label_id);
1384
1385                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1386                         "id = ? AND label_id = ?", [id, label_id]);
1387                 var check = rs.field(0);
1388
1389                 if (rs.isValidRow()) {
1390                         var check = rs.field(0);
1391                 }
1392                 rs.close();
1393
1394                 if (check == 0) {
1395                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1396                                 "(?,?)", [id, label_id]);
1397                 }
1398
1399         } catch (e) {
1400                 exception_error("label_local_add_article", e);
1401         }
1402 }
1403
1404 function get_local_feed_title(id) {
1405         try {
1406
1407                 var feed_title = "Unknown feed: " + id;
1408
1409                 if (id > 0) {
1410                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1411
1412                         if (rs.isValidRow()) {
1413                                 feed_title = rs.field(0);
1414                         }
1415
1416                         rs.close();
1417                 } else if (id == -1) {
1418                         feed_title = __("Starred articles");
1419                 } else if (id == -4) {
1420                         feed_title = __("All articles");
1421                 } else if (id < -10) {
1422
1423                         var label_id = -11 - id;
1424
1425                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1426
1427                         if (rs.isValidRow()) {
1428                                 feed_title = rs.field(0);
1429                         }
1430
1431                         rs.close();
1432                 }
1433
1434                 return feed_title;
1435
1436         } catch (e) {
1437                 exception_error("get_local_feed_title", e);
1438         }
1439 }
1440
1441 function format_article_labels(labels, id) {
1442         try {
1443
1444                 var labels_str = "";
1445
1446                 if (!labels) return "";
1447
1448                 for (var i = 0; i < labels.length; i++) {
1449                         var l = labels[i];
1450
1451                         labels_str += "<span class='hlLabelRef' "+
1452                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1453                 }
1454
1455                 return labels_str;
1456
1457         } catch (e) {
1458                 exception_error("format_article_labels", e);
1459         }
1460 }
1461
1462 function init_local_sync_data() {
1463         try {
1464
1465                 if (!db) return;
1466
1467                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1468                 var has_last_online = 0;
1469
1470                 if (rs.isValidRow()) {
1471                         has_last_online = rs.field(0);
1472                 }
1473
1474                 rs.close();
1475
1476                 if (!has_last_online) {
1477                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1478                 }
1479
1480         } catch (e) {
1481                 exception_error("init_local_sync_data", e);
1482
1483         }
1484 }
1485
1486 function has_local_sync_data() {
1487         try {
1488
1489                 var rs = db.execute("SELECT id FROM articles "+
1490                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1491                         "LIMIT 1");
1492
1493                 var tmp = 0;
1494
1495                 if (rs.isValidRow()) {
1496                         tmp = rs.field(0);
1497                 }
1498
1499                 rs.close();
1500
1501                 return tmp != 0;
1502
1503         } catch (e) {
1504                 exception_error("has_local_sync_data", e);
1505         }
1506 }
1507
1508 function prepare_local_sync_data() {
1509         try {
1510                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1511
1512                 var last_online = "";
1513
1514                 if (rs.isValidRow()) {
1515                         last_online = rs.field(0);
1516                 }
1517
1518                 rs.close();
1519
1520                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1521                         "WHERE modified > ? LIMIT 200", [last_online]);
1522
1523                 var tmp = last_online + ";";
1524
1525                 var entries = 0;
1526
1527                 while (rs.isValidRow()) {
1528                         var e = new Array();
1529
1530                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1531                         entries++;
1532
1533                         rs.next();
1534                 }
1535
1536                 rs.close();
1537
1538                 if (entries > 0) {
1539                         return tmp;
1540                 } else {
1541                         return '';
1542                 }
1543
1544         } catch (e) {
1545                 exception_error("prepare_local_sync_data", e);
1546         }
1547 }
1548
1549 function update_local_sync_data() {
1550         try {
1551                 if (db && !offline_mode) {
1552
1553                         var rs = db.execute("SELECT id FROM articles "+
1554                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1555                                         "key = 'last_online') LIMIT 1")
1556
1557                         var f_id = 0;
1558
1559                         if (rs.isValidRow()) {
1560                                 f_id = rs.field(0);
1561                         }
1562
1563                         rs.close();
1564
1565                         /* no pending articles to sync */
1566
1567                         if (f_id == 0) {
1568                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1569                                         "WHERE key = 'last_online'");
1570                         }
1571
1572                 }
1573         } catch (e) {
1574                 exception_error("update_local_sync_data", e);
1575         }
1576 }
1577
1578 function catchup_local_feed(id, is_cat) {
1579         try {
1580                 if (!db) return;
1581
1582                 if (!is_cat) {
1583                         if (id >= 0) {
1584                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1585                         } else if (id == -1) {
1586                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1587                         } else if (id == -4) {
1588                                 db.execute("UPDATE articles SET unread = 0");
1589                         } else if (id < -10) {
1590                                 var label_id = -11-id;
1591
1592                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1593                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1594                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1595                         }
1596                 }
1597
1598                 update_local_feedlist_counters();
1599
1600         } catch (e) {
1601                 exception_error("catchup_local_feed", e);
1602         }
1603 }
1604
1605 function toggleOfflineModeInfo() {
1606         try {
1607                 var e = $('offlineModeDrop');
1608                 var p = $('offlineModePic');
1609
1610                 if (Element.visible(e)) {
1611                         Element.hide(e);
1612                 } else {
1613                         Element.show(e);
1614                 }
1615
1616         } catch (e) {
1617                 exception_error("toggleOfflineModeInfo", e);
1618         }
1619 }
1620
1621 function offlineDownloadStart() {
1622         try {
1623                 if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
1624                         window.setTimeout("update_offline_data(0)", 100);
1625                 }
1626         } catch (e) {
1627                 exception_error("offlineDownloadStart", e);
1628         }
1629 }
1630
1631 function offlineDownloadStop() {
1632         try {
1633                 if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
1634
1635                         sync_in_progress = false;
1636
1637                         if (sync_timer) {
1638                                 window.clearTimeout(sync_timer);
1639                                 sync_timer = false;
1640                         }
1641
1642                         var pic = $("offlineModePic");
1643
1644                         if (pic) {
1645                                 pic.src = "images/offline.png";
1646                                 var msg = __("Last sync: Cancelled.");
1647                                 articles_synced = 0;
1648                                 $("offlineModeSyncMsg").innerHTML = msg;
1649                         }
1650
1651                         offlineSyncShowHideElems(false);
1652
1653                 }
1654         } catch (e) {
1655                 exception_error("offlineDownloadStart", e);
1656         }
1657 }
1658
1659 function offlineClearData() {
1660         try {
1661                 if (db) {
1662
1663                         if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
1664
1665                                 notify_progress("Removing offline data...");
1666
1667                                 localServer.removeManagedStore("tt-rss");
1668
1669                                 db.execute("DELETE FROM articles");
1670                                 db.execute("DELETE FROM article_labels");
1671                                 db.execute("DELETE FROM labels");
1672                                 db.execute("DELETE FROM feeds");
1673                                 db.execute("DELETE FROM cache");
1674
1675                                 notify_info("Local data removed.");
1676                         }
1677                 }
1678         } catch (e) {
1679                 exception_error("offlineClearData", e);
1680         }
1681 }
1682
1683 function offlineUpdateStore() {
1684         try {
1685                 if (offline_mode || !store) return;
1686
1687                 store.checkForUpdate();
1688
1689                 var timerId = window.setInterval(function() {
1690                         if (store.currentVersion) {
1691                                 window.clearInterval(timerId);
1692                                 debug("[Local store] sync complete: " + store.currentVersion);
1693                         } else if (store.updateStatus == 3) {
1694                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1695                         } }, 500);
1696
1697         } catch (e) {
1698                 exception_error("offlineUpdateStore", e);
1699         }
1700 }
1701
1702 function offlineSyncShowHideElems(syncing) {
1703         try {
1704
1705                 var elems = $$("div.hideWhenSyncing");
1706
1707                 for (var j = 0; j < elems.length; j++) {
1708                         if (syncing) {
1709                                 Element.hide(elems[j]);
1710                         } else {
1711                                 Element.show(elems[j]);
1712                         }
1713                 }
1714
1715                 var elems = $$("div.showWhenSyncing");
1716
1717                 for (var j = 0; j < elems.length; j++) {
1718                         if (syncing) {
1719                                 Element.show(elems[j]);
1720                         } else {
1721                                 Element.hide(elems[j]);
1722                         }
1723                 }
1724
1725         } catch (e) {
1726                 exception_error("offlineSyncShowHideElems", e);
1727         }
1728 }
1729
1730 function offlineConfirmModeChange() {
1731         try {
1732
1733                 if (db && getInitParam("offline_enabled") == "1" && offlineArticlesStored() > 0) {
1734                         var ok = confirm(__("Tiny Tiny RSS has trouble accessing its server. Would you like to go offline?"));
1735
1736                         if (ok) {
1737                                 init_offline();
1738                         }
1739                 }
1740
1741         } catch (e) {
1742                 exception_error("offlineConfirmModeChange", e);
1743         }
1744 }