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) {
  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, 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                 Form.enable("main_toolbar_form");
 114
 115                 var f = $("headlines-frame");
 116                 try {
 117                         if (reply.offset == 0) {
 118                                 console.log("resetting headlines scrollTop");
 119                                 f.scrollTop = 0;
 120                         }
 121                 } catch (e) { };
 122
 123
 124                 var tmp = "";
 125                 var feed_title = "";
 126
 127                 if (is_cat) {
 128                         feed_title = get_local_category_title(feed_id);
 129                 } else {
 130                         feed_title = get_local_feed_title(feed_id);
 131                 }
 132
 133                 if (feed_title) {
 134
 135                         if (offset == 0) {
 136                                 tmp += "<div id=\"headlinesContainer\">";
 137
 138                                 tmp += "<div class=\"headlinesSubToolbar\">";
 139                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 140                                 tmp += feed_title;
 141                                 tmp += "</div>";
 142
 143                                 var catchup_feed_link = "javascript:catchupCurrentFeed()";
 144                                 var catchup_sel_link = "javascript:catchupSelection()";
 145
 146                                 var sel_all_link = "javascript:selectArticles('all')";
 147                                 var sel_unread_link = "javascript:selectArticles('unread')";
 148                                 var sel_none_link = "javascript:selectArticles('none')";
 149                                 var sel_inv_link = "javascript:invertHeadlineSelection()";
 150
 151                                 var tog_unread_link = "javascript:selectionToggleUnread()";
 152                                 var tog_marked_link = "javascript:selectionToggleMarked()";
 153
 154                                 tmp += __('Select:')+
 155                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 156                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 157                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 158                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 159
 160                                 tmp += "&nbsp;&nbsp;";
 161
 162                                 tmp += "<span onmouseover=\"enable_selection(false)\" "+
 163                                         "onmouseout=\"enable_selection(true) \"" +
 164                                         "onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">" +
 165                                         __("Actions...") + "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">" +
 166                                 "</span>";
 167
 168                                 tmp += "<ul id=\"headlineActionsBody\" style=\"display : none\">";
 169
 170                                 tmp += "<li class=\"insensitive\">"+__('Selection toggle:')+"</li>"+
 171                                 "<li onclick=\""+tog_unread_link+"\">&nbsp;&nbsp;"+__('Unread')+"</li>"+
 172                                 "<li onclick=\""+tog_marked_link+"\">&nbsp;&nbsp;"+__('Starred')+"</li>"+
 173                                 "<li class=\"insensitive\">"+__('Mark as read:')+"</li>"+
 174                                 "<li onclick=\""+catchup_sel_link+"\">&nbsp;&nbsp;"+__('Selection')+"</li>";
 175
 176                                 tmp += "<li onclick=\""+catchup_feed_link+"\">&nbsp;&nbsp;"+__('Entire feed')+
 177                                         "</li>";
 178
 179                                 tmp += "</ul>";
 180
 181                                 tmp += "</div>";
 182
 183                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 184                                 if ($("content-frame")) {
 185                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 186                                 }
 187
 188                         }
 189
 190                         var limit = 30;
 191
 192                         var toolbar_form = document.forms["main_toolbar_form"];
 193
 194                         //var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 195                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 196
 197                         var limit_qpart = "";
 198                         var strategy_qpart = "";
 199                         var mode_qpart = "";
 200                         var offset_qpart = "";
 201
 202                         if (limit != 0) {
 203                                 limit_qpart = "LIMIT " + limit;
 204                         }
 205
 206                         if (view_mode == "all_articles") {
 207                                 mode_qpart = "1";
 208                         } else if (view_mode == "adaptive") {
 209                                 if (is_cat && get_local_category_unread(feed_id) ||
 210                                         get_local_feed_unread(feed_id) > 0) {
 211                                                 mode_qpart = "unread = 1";
 212                                 } else {
 213                                         mode_qpart = "1";
 214                                 }
 215
 216                         } else if (view_mode == "marked") {
 217                                 mode_qpart = "marked = 1";
 218                         } else if (view_mode == "unread") {
 219                                 mode_qpart = "unread = 1";
 220                         } else {
 221                                 mode_qpart = "1";
 222                         }
 223
 224                         var ext_tables_qpart = "";
 225
 226                         if (is_cat) {
 227                                 if (feed_id >= 0) {
 228                                         strategy_qpart = "cat_id = " + feed_id;
 229                                 } else if (feed_id == -2) {
 230                                         strategy_qpart = "article_labels.id = articles.id";
 231                                         ext_tables_qpart = ",article_labels";
 232                                 }
 233                         } else if (feed_id > 0) {
 234                                 strategy_qpart = "feed_id = " + feed_id;
 235                         } else if (feed_id == -1) {
 236                                 strategy_qpart = "marked = 1";
 237                         } else if (feed_id == -4) {
 238                                 strategy_qpart = "1";
 239                         } else if (feed_id < -10) {
 240                                 var label_id = -11 - feed_id;
 241                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 242                                 ext_tables_qpart = ",article_labels";
 243                         }
 244
 245                         if (offset > 0) {
 246                                 offset_qpart = "OFFSET " + (offset*30);
 247                         } else {
 248                                 offset_qpart = "";
 249                         }
 250
 251                         var query = "SELECT *,feeds.title AS feed_title "+
 252                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 253                                 "WHERE " +
 254                                 "cat_id = categories.id AND " +
 255                                 "feed_id = feeds.id AND " +
 256                                 strategy_qpart +
 257                                 " AND " + mode_qpart +
 258                                 " ORDER BY updated DESC "+
 259                                 limit_qpart + " " +
 260                                 offset_qpart;
 261
 262                         var rs = db.execute(query);
 263
 264                         var line_num = offset*30;
 265
 266                         var real_feed_id = feed_id;
 267
 268                         while (rs.isValidRow()) {
 269
 270                                 var id = rs.fieldByName("id");
 271                                 var feed_id = rs.fieldByName("feed_id");
 272
 273                                 var entry_feed_title = false;
 274
 275                                 if (real_feed_id < 0 || is_cat) {
 276                                         entry_feed_title = rs.fieldByName("feed_title");
 277                                 }
 278
 279                                 var marked_pic;
 280
 281                                 var row_class = (line_num % 2) ? "even" : "odd";
 282
 283                                 if (rs.fieldByName("unread") == "1") {
 284                                         row_class += "Unread";
 285                                 }
 286
 287                                 var labels = get_local_article_labels(id);
 288
 289                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 290                                 labels_str += format_article_labels(labels, id);
 291                                 labels_str += "</span>";
 292
 293                                 if (rs.fieldByName("marked") == "1") {
 294                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 295                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 296                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 297                                 } else {
 298                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 299                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 300                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 301                                 }
 302
 303                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 304                                         "onmouseout='postMouseOut($id)'";
 305
 306                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 307                                                 100);
 308
 309                                 if ($("content-frame")) {
 310
 311                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 312
 313                                         tmp += "<td class='hlUpdPic'> </td>";
 314
 315                                         tmp += "<td class='hlSelectRow'>"+
 316                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 317
 318                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 319
 320                                         tmp += "<td onclick='view("+id+")' "+
 321                                                 "class='hlContent' valign='middle'>";
 322
 323                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 324                                                 rs.fieldByName("link") + "\"" +
 325                                                 "onclick=\"return view("+id+");\">"+
 326                                                 rs.fieldByName("title");
 327
 328                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 329
 330                                         tmp += "</a>";
 331
 332                                         tmp += labels_str;
 333
 334                                         if (entry_feed_title) {
 335                                                 tmp += " <span class=\"hlFeed\">"+
 336                                                         "(<a href='javascript:viewfeed("+feed_id+
 337                                                         ")'>"+entry_feed_title+"</a>)</span>";
 338                                         }
 339
 340                                         tmp += "</td>";
 341
 342                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+")'>"+
 343                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 344                                                 "</nobr></td>";
 345
 346                                         tmp += "</tr>";
 347                                 } else {
 348
 349                                         var add_class = "";
 350
 351                                         if (rs.fieldByName("unread") == "1") {
 352                                                 add_class = "Unread";
 353                                         }
 354
 355                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 356                                                 mouseover_attrs+"'>";
 357
 358                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 359                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 360                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 361                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 362
 363                                         tmp += "<div class=\"cdmHeader\">";
 364                                         tmp += "<div class=\"articleUpdated\">"+
 365                                                 rs.fieldByName("updated").substring(0,16)+
 366                                                 " "+cdm_feed_icon+"</div>";
 367
 368                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 369                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 370                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 371                                                 "\">"+rs.fieldByName("title")+"</a>";
 372
 373                                         tmp += labels_str;
 374
 375                                         if (entry_feed_title) {
 376                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 377                                                         ")'>"+entry_feed_title+"</a>)";
 378                                         }
 379
 380                                         tmp += "</span></div>";
 381
 382                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 383                                                 "id=\"CICD-"+id+"\">";
 384                                         tmp += rs.fieldByName("content");
 385                                         tmp += "<br clear='both'>"
 386                                         tmp += "</div>";
 387
 388                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 389                                         tmp += __("Select:")+
 390                                                 " <input type=\"checkbox\" "+
 391                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 392                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 393
 394                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 395
 396 /*                                      tmp += "<span class='s1'>"+
 397                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 398                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 399                                                 "</span>"; */
 400
 401                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 402                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 403                                                 "Unread</a></span>";
 404                                         tmp += "</div>";
 405
 406                                         tmp += "</div>";
 407                                 }
 408
 409                                 rs.next();
 410                                 line_num++;
 411                         }
 412
 413                         if (line_num - offset*30 < 30) {
 414                                 _infscroll_disable = 1;
 415                         }
 416
 417                         rs.close();
 418
 419                         if (offset == 0) {
 420                                 tmp += "</table>";
 421
 422                                 if (line_num - offset*30 == 0) {
 423                                         tmp += "<div class='whiteBox'>" +
 424                                                 __("No articles found to display.") +
 425                                                 "</div>";
 426                                 }
 427                                 tmp += "</div></div>";
 428                         }
 429
 430                         if (offset == 0) {
 431                                 var container = $("headlines-frame");
 432                                 container.innerHTML = tmp;
 433                         } else {
 434                                 var ids = getSelectedArticleIds2();
 435
 436                                 var container = $("headlinesList");
 437                                 container.innerHTML = container.innerHTML + tmp;
 438
 439                                 for (var i = 0; i < ids.length; i++) {
 440                                         markHeadline(ids[i]);
 441                                 }
 442                         }
 443                 }
 444
 445                 remove_splash();
 446
 447                 _infscroll_request_sent = 0;
 448
 449         } catch (e) {
 450                 exception_error("viewfeed_offline", e);
 451         }
 452 }
 453
 454 function render_offline_feedlist() {
 455         try {
 456                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 457
 458                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 459
 460                 var unread = get_local_feed_unread(-4);
 461
 462                 global_unread = unread;
 463                 updateTitle();
 464
 465                 if (cats_enabled) {
 466                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 467                 }
 468
 469                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 470                         "images/tag.png");
 471
 472                 var unread = get_local_feed_unread(-1);
 473
 474                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 475                         "images/mark_set.png");
 476
 477                 if (cats_enabled) {
 478                         tmp += "</ul></li>";
 479                 } else {
 480                         tmp += "<li><hr/></li>";
 481                 }
 482
 483                 if (cats_enabled) {
 484                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 485                 }
 486
 487                 var rs = db.execute("SELECT id,caption "+
 488                         "FROM labels "+
 489                         "ORDER BY caption");
 490
 491                 while (rs.isValidRow()) {
 492                         var id = -11 - parseInt(rs.field(0));
 493                         var caption = rs.field(1);
 494                         var unread = get_local_feed_unread(id);
 495
 496                         tmp += printFeedEntry(id, caption, "feed", unread,
 497                                 "images/label.png");
 498
 499                         rs.next();
 500                 }
 501
 502                 rs.close();
 503
 504                 if (cats_enabled) {
 505                         tmp += "</ul></li>";
 506                 } else {
 507                         tmp += "<li><hr/></li>";
 508                 }
 509
 510 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 511                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 512                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 513                         "ORDER BY feeds.title"); */
 514
 515                 var order_by = "feeds.title";
 516
 517                 if (cats_enabled) order_by = "categories.title," + order_by;
 518
 519                 var rs = db.execute("SELECT "+
 520                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 521                         "FROM feeds,categories WHERE cat_id = categories.id "+
 522                         "ORDER BY "+order_by);
 523
 524                 var tmp_cat_id = -1;
 525
 526                 while (rs.isValidRow()) {
 527
 528                         var id = rs.field(0);
 529                         var title = rs.field(1);
 530                         var has_icon = rs.field(2);
 531                         var unread = get_local_feed_unread(id);
 532                         var cat_id = rs.field(3);
 533                         var cat_hidden = rs.field(4);
 534
 535                         if (cat_id != tmp_cat_id && cats_enabled) {
 536                                 if (tmp_cat_id != -1) {
 537                                         tmp += "</ul></li>";
 538                                 }
 539                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 540                                 tmp_cat_id = cat_id;
 541                         }
 542
 543                         var icon = "";
 544
 545                         if (has_icon) {
 546                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 547                         }
 548
 549                         var feed_icon = "";
 550
 551                         var row_class = "feed";
 552
 553                         if (unread > 0) {
 554                                 row_class += "Unread";
 555                                 fctr_class = "feedCtrHasUnread";
 556                         } else {
 557                                 fctr_class = "feedCtrNoUnread";
 558                         }
 559
 560                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 561
 562                         rs.next();
 563                 }
 564
 565                 rs.close();
 566
 567                 if (cats_enabled) {
 568                         tmp += "</ul>";
 569                 }
 570
 571                 tmp += "</ul>";
 572
 573                 render_feedlist(tmp);
 574         } catch (e) {
 575                 exception_error("render_offline_feedlist", e);
 576         }
 577 }
 578
 579 function init_offline() {
 580         try {
 581                 offline_mode = true;
 582                 store.enabled = true;
 583
 584                 Element.hide("dispSwitchPrompt");
 585
 586                 Element.hide("topLinksOnline");
 587                 Element.show("topLinksOffline");
 588
 589                 var tb_form = $("main_toolbar_form");
 590                 Element.hide(tb_form.update);
 591
 592                 var chooser = $("quickMenuChooser");
 593                 chooser.disabled = true;
 594
 595                 var rs = db.execute("SELECT key, value FROM init_params");
 596
 597                 while (rs.isValidRow()) {
 598                         init_params[rs.field(0)] = rs.field(1);
 599                         rs.next();
 600                 }
 601
 602                 rs.close();
 603
 604                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 605
 606                 var num_feeds = 0;
 607
 608                 if (rs.isValidRow()) {
 609                         num_feeds = rs.field(0);
 610                 }
 611
 612                 rs.close();
 613
 614                 if (num_feeds == 0) {
 615                         remove_splash();
 616                         return fatalError(0,
 617                                 __("Data for offline browsing has not been downloaded yet."));
 618                 }
 619
 620                 render_offline_feedlist();
 621                 init_second_stage();
 622                 window.setTimeout("viewfeed(-4)", 50);
 623
 624         } catch (e) {
 625                 exception_error("init_offline", e);
 626         }
 627 }
 628
 629 function offline_download_parse(stage, transport) {
 630         try {
 631                 if (transport.responseXML) {
 632
 633                         if (!sync_in_progress) return;
 634
 635                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 636
 637                         if (sync_ok.length > 0) {
 638                                 for (var i = 0; i < sync_ok.length; i++) {
 639                                         var id = sync_ok[i].getAttribute("id");
 640                                         var unread = sync_ok[i].getAttribute("unread");
 641                                         var marked = sync_ok[i].getAttribute("marked");
 642
 643                                         if (id) {
 644                                                 console.log("synced offline info for id " + id);
 645
 646                                                 if (unread != undefined && marked != undefined) {
 647                                                         db.execute("UPDATE articles SET "+
 648                                                                 "unread = ?, marked = ? WHERE id = ?", [unread, marked, id]);
 649
 650                                                 }
 651                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 652                                         }
 653                                 }
 654                         }
 655
 656                         if (stage == 0) {
 657
 658                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing feeds...");
 659
 660                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 661
 662                                 if (feeds.length > 0) {
 663                                         db.execute("DELETE FROM feeds");
 664                                 }
 665
 666                                 for (var i = 0; i < feeds.length; i++) {
 667                                         var id = feeds[i].getAttribute("id");
 668                                         var has_icon = feeds[i].getAttribute("has_icon");
 669                                         var title = feeds[i].firstChild.nodeValue;
 670                                         var cat_id = feeds[i].getAttribute("cat_id");
 671
 672                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 673                                                 "VALUES (?,?,?,?)",
 674                                                 [id, title, has_icon, cat_id]);
 675                                 }
 676
 677                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing categories...");
 678
 679                                 var cats = transport.responseXML.getElementsByTagName("category");
 680
 681                                 if (feeds.length > 0) {
 682                                         db.execute("DELETE FROM categories");
 683                                 }
 684
 685                                 for (var i = 0; i < cats.length; i++) {
 686                                         var id = cats[i].getAttribute("id");
 687                                         var collapsed = cats[i].getAttribute("collapsed");
 688                                         var title = cats[i].firstChild.nodeValue;
 689
 690                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 691                                                 "VALUES (?,?,?)",
 692                                                 [id, title, collapsed]);
 693                                 }
 694
 695                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing labels...");
 696
 697                                 var labels = transport.responseXML.getElementsByTagName("label");
 698
 699                                 if (labels.length > 0) {
 700                                         db.execute("DELETE FROM labels");
 701                                 }
 702
 703                                 for (var i = 0; i < labels.length; i++) {
 704                                         var id = labels[i].getAttribute("id");
 705                                         var fg_color = labels[i].getAttribute("fg_color");
 706                                         var bg_color = labels[i].getAttribute("bg_color");
 707                                         var caption = labels[i].firstChild.nodeValue;
 708
 709                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 710                                                 "VALUES (?,?,?,?)",
 711                                                 [id, caption, fg_color, bg_color]);
 712                                 }
 713
 714                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing articles...");
 715
 716                                 sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 2*1000);
 717                         } else {
 718
 719                                 var articles = transport.responseXML.getElementsByTagName("article");
 720
 721                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 722
 723                                 if (limit) {
 724                                         limit = limit.getAttribute("value");
 725                                 } else {
 726                                         limit = 0;
 727                                 }
 728
 729                                 var articles_found = 0;
 730
 731                                 for (var i = 0; i < articles.length; i++) {
 732                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 733                                         articles_found++;
 734                                         if (a) {
 735
 736                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 737
 738                                                 db.execute("INSERT INTO articles "+
 739                                                 "(id, feed_id, title, link, guid, updated, content, "+
 740                                                         "unread, marked, tags, comments) "+
 741                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 742                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 743                                                                 a.content, a.unread, a.marked, a.tags,
 744                                                                 a.comments]);
 745
 746                                                 if (a.labels.length > 0) {
 747                                                         for (var j = 0; j < a.labels.length; j++) {
 748                                                                 label_local_add_article(a.id, a.labels[j][0]);
 749                                                         }
 750                                                 }
 751
 752                                         }
 753                                 }
 754
 755                                 console.log("downloaded articles: " + articles_found + " limit: " + limit);
 756
 757                                 articles_synced += articles_found;
 758
 759                                 var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
 760
 761                                 $("offlineModeSyncMsg").innerHTML = msg;
 762
 763                                 var has_sync_data = has_local_sync_data();
 764
 765                                 if (articles_found >= limit || has_sync_data) {
 766                                         sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
 767                                                 3*1000);
 768                                         console.log("<b>update_offline_data: done " + stage + " HSD: " +
 769                                                 has_sync_data + "</b>");
 770                                 } else {
 771                                         window.setTimeout("offlineDownloadStart()", 180*1000);
 772                                         console.log("update_offline_data: finished");
 773
 774                                         var pic = $("offlineModePic");
 775
 776                                         if (pic) {
 777                                                 pic.src = "images/offline.png";
 778
 779                                                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
 780                                                 var last_sync = "";
 781
 782                                                 if (rs.isValidRow()) {
 783                                                         last_sync = rs.field(0).substring(0,16);
 784                                                 }
 785                                                 rs.close();
 786
 787                                                 var msg = __("Last sync: %s").replace("%s", last_sync);
 788
 789                                                 articles_synced = 0;
 790
 791                                                 $("offlineModeSyncMsg").innerHTML = msg;
 792                                         }
 793
 794                                         offlineSyncShowHideElems(false);
 795
 796                                         sync_in_progress = false;
 797
 798                                         db.execute("DELETE FROM articles WHERE "+
 799                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 800
 801                                 }
 802                         }
 803
 804                         update_local_sync_data();
 805
 806
 807 //                      notify('');
 808
 809                 } else {
 810                         sync_in_progress = false;
 811
 812                         var pic = $("offlineModePic");
 813
 814                         if (pic) {
 815                                 pic.src = "images/offline.png";
 816                                 var msg = __("Last sync: Error receiving data.");
 817                                 articles_synced = 0;
 818                                 $("offlineModeSyncMsg").innerHTML = msg;
 819                         }
 820
 821                         offlineSyncShowHideElems(false);
 822                 }
 823
 824         } catch (e) {
 825                 exception_error("offline_download_parse", e);
 826         }
 827 }
 828
 829 function update_offline_data(stage) {
 830         try {
 831
 832                 if (!stage) stage = 0;
 833
 834                 if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
 835
 836                 var query = "?op=rpc&subop=download";
 837
 838                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 839
 840                 if (rs.isValidRow() && rs.field(0)) {
 841                         var offline_dl_max_id = rs.field(0);
 842                         var offline_dl_min_id = rs.field(1);
 843
 844                         query = query + "&cidt=" + offline_dl_max_id;
 845                         query = query + "&cidb=" + offline_dl_min_id;
 846
 847                         if (stage > 0) stage = 1;
 848                 }
 849
 850                 rs.close();
 851
 852                 console.log("update_offline_data: stage " + stage);
 853
 854                 query = query + "&stage=" + stage;
 855
 856                 var to_sync = prepare_local_sync_data();
 857
 858                 if (to_sync != "") {
 859                         to_sync = "&sync=" + param_escape(to_sync);
 860                 }
 861
 862                 query = query + to_sync;
 863
 864                 var pic = $("offlineModePic");
 865
 866                 if (pic) {
 867                         pic.src = "images/offline-sync.gif";
 868                         if (articles_synced == 0) {
 869                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
 870                         }
 871                 }
 872
 873                 offlineSyncShowHideElems(true);
 874                 offlineUpdateStore();
 875
 876                 sync_in_progress = true;
 877
 878                 console.log(query);
 879
 880                 new Ajax.Request("backend.php", {
 881                         parameters: query,
 882                         onComplete: function(transport) {
 883                                 offline_download_parse(stage, transport);
 884                         } });
 885
 886         } catch (e) {
 887                 exception_error("initiate_offline_download", e);
 888         }
 889 }
 890
 891 function set_feedlist_counter(id, ctr, is_cat) {
 892         try {
 893
 894                 var feedctr = $("FEEDCTR-" + id);
 895                 var feedu = $("FEEDU-" + id);
 896                 var feedr = $("FEEDR-" + id);
 897
 898                 if (is_cat) {
 899                         var catctr = $("FCATCTR-" + id);
 900                         if (catctr) {
 901                                 catctr.innerHTML = "(" + ctr + ")";
 902                                 if (ctr > 0) {
 903                                         catctr.className = "catCtrHasUnread";
 904                                 } else {
 905                                         catctr.className = "catCtrNoUnread";
 906                                 }
 907                         }
 908                 } else if (feedctr && feedu && feedr) {
 909
 910                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 911
 912                         feedu.innerHTML = ctr;
 913
 914                         if (ctr > 0) {
 915                                 feedctr.className = "feedCtrHasUnread";
 916                                 if (!feedr.className.match("Unread")) {
 917                                         var is_selected = feedr.className.match("Selected");
 918
 919                                         feedr.className = feedr.className.replace("Selected", "");
 920                                         feedr.className = feedr.className.replace("Unread", "");
 921
 922                                         feedr.className = feedr.className + "Unread";
 923
 924                                         if (is_selected) {
 925                                                 feedr.className = feedr.className + "Selected";
 926                                         }
 927
 928                                 }
 929
 930                                 if (row_needs_hl) {
 931                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 932                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 933                                 }
 934                         } else {
 935                                 feedctr.className = "feedCtrNoUnread";
 936                                 feedr.className = feedr.className.replace("Unread", "");
 937                         }
 938                 }
 939
 940         } catch (e) {
 941                 exception_error("set_feedlist_counter", e);
 942         }
 943 }
 944
 945 function update_local_feedlist_counters() {
 946         try {
 947                 if (!offline_mode || !db) return;
 948
 949 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 950                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 951                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 952                         "ORDER BY feeds.title"); */
 953
 954                 var rs = db.execute("SELECT id FROM feeds "+
 955                         "ORDER BY title");
 956
 957                 while (rs.isValidRow()) {
 958                         var id = rs.field(0);
 959                         var ctr = get_local_feed_unread(id);
 960                         set_feedlist_counter(id, ctr, false);
 961                         rs.next();
 962                 }
 963
 964                 rs.close();
 965
 966                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 967                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 968
 969                 while (rs.isValidRow()) {
 970                         var id = rs.field(0);
 971                         var ctr = rs.field(1);
 972                         set_feedlist_counter(id, ctr, true);
 973                         rs.next();
 974                 }
 975
 976                 rs.close();
 977
 978                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 979
 980                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 981                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 982
 983                 var rs = db.execute("SELECT id FROM labels");
 984
 985                 while (rs.isValidRow()) {
 986                         var id = -11 - rs.field(0);
 987                         var ctr = get_local_feed_unread(id);
 988                         set_feedlist_counter(id, ctr, false);
 989                         rs.next();
 990                 }
 991
 992                 rs.close();
 993
 994                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 995
 996                 global_unread = get_local_feed_unread(-4);
 997                 updateTitle();
 998
 999         } catch (e) {
1000                 exception_error("update_local_feedlist_counters", e);
1001         }
1002 }
1003
1004 function get_local_feed_unread(id) {
1005         try {
1006                 var rs;
1007
1008                 if (id == -4) {
1009                         rs = db.execute("SELECT SUM(unread) FROM articles");
1010                 } else if (id == -1) {
1011                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
1012                 } else if (id > 0) {
1013                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
1014                 } else if (id < -10) {
1015                         var label_id = -11 - id;
1016                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
1017                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
1018                 }
1019
1020                 var a = false;
1021
1022                 if (rs.isValidRow()) {
1023                         a = rs.field(0);
1024                 } else {
1025                         a = 0;
1026                 }
1027
1028                 rs.close();
1029
1030                 return a;
1031
1032         } catch (e) {
1033                 exception_error("get_local_feed_unread", e);
1034         }
1035 }
1036
1037 function enable_offline_reading() {
1038         try {
1039
1040                 if (db && getInitParam("offline_enabled") == "1") {
1041                         init_local_sync_data();
1042                         Element.show("offlineModePic");
1043                         offlineDownloadStart();
1044                 }
1045
1046         } catch (e) {
1047                 exception_error("enable_offline_reading", e);
1048         }
1049 }
1050
1051 function init_gears() {
1052         try {
1053
1054                 if (window.google && google.gears) {
1055
1056                         try {
1057                                 localServer = google.gears.factory.create("beta.localserver");
1058                         } catch (e) {
1059                                 return;
1060                         }
1061
1062                         store = localServer.createManagedStore("tt-rss");
1063                         store.manifestUrl = "manifest.json.php";
1064                         store.enabled = false;
1065
1066                         db = google.gears.factory.create('beta.database');
1067                         db.open('tt-rss');
1068
1069                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1070
1071                         var rs = db.execute("SELECT schema_version FROM version");
1072
1073                         var version = "";
1074
1075                         if (rs.isValidRow()) {
1076                                 version = rs.field(0);
1077                         }
1078
1079                         rs.close();
1080
1081                         if (version != SCHEMA_VERSION) {
1082                                 db.execute("DROP TABLE IF EXISTS init_params");
1083                                 db.execute("DROP TABLE IF EXISTS cache");
1084                                 db.execute("DROP TABLE IF EXISTS feeds");
1085                                 db.execute("DROP TABLE IF EXISTS categories");
1086                                 db.execute("DROP TABLE IF EXISTS labels");
1087                                 db.execute("DROP TABLE IF EXISTS article_labels");
1088                                 db.execute("DROP TABLE IF EXISTS articles");
1089                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
1090                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
1091                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
1092                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
1093                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
1094                                 db.execute("DROP TABLE IF EXISTS version");
1095                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
1096                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
1097                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
1098                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1099                                 db.execute("DROP TABLE IF EXISTS syncdata");
1100                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
1101                                         [SCHEMA_VERSION]);
1102                         }
1103
1104                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
1105
1106                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
1107                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
1108                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
1109                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
1110                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
1111                         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)");
1112
1113                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
1114                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
1115                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
1116                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
1117                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
1118
1119                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
1120
1121                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1122
1123                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1124                                 "UPDATE OF unread ON articles "+
1125                                 "BEGIN "+
1126                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1127                                 "WHERE id = OLD.id AND "+
1128                                 "OLD.unread != NEW.unread;"+
1129                                 "END;");
1130
1131                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1132                                 "UPDATE OF marked ON articles "+
1133                                 "BEGIN "+
1134                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1135                                 "WHERE id = OLD.id;"+
1136                                 "END;");
1137
1138                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1139                                 "DELETE ON articles "+
1140                                 "BEGIN "+
1141                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1142                                 "END; ");
1143
1144                 }
1145
1146                 cache_expire();
1147
1148         } catch (e) {
1149                 exception_error("init_gears", e);
1150         }
1151 }
1152
1153 function offlineArticlesStored() {
1154
1155         var rs = db.execute("SELECT COUNT(*) FROM articles");
1156         var count = 0;
1157         if (rs.isValidRow()) {
1158                 count = rs.field(0);
1159         }
1160
1161         rs.close();
1162
1163         return count;
1164 }
1165
1166 function gotoOffline() {
1167
1168 //      console.log("[Local store] currentVersion = " + store.currentVersion);
1169
1170
1171         if (offlineArticlesStored() == 0) {
1172                 notify_error("You have to synchronize some articles before going into offline mode.");
1173                 return;
1174         }
1175
1176         if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
1177
1178                 store.enabled = true;
1179                 store.checkForUpdate();
1180
1181                 notify_progress("Preparing offline mode...", true);
1182
1183                 var timerId = window.setInterval(function() {
1184                         if (store.currentVersion) {
1185                                 window.clearInterval(timerId);
1186                                 console.log("[Local store] sync complete: " + store.currentVersion);
1187
1188                                 //window.location.href = "tt-rss.php";
1189
1190                                 offlineDownloadStop();
1191                                 init_offline();
1192
1193                                 notify_info("Tiny Tiny RSS is in offline mode.");
1194
1195                         } else if (store.updateStatus == 3) {
1196                                 console.log("[Local store] sync error: " + store.lastErrorMessage);
1197                                 notify_error(store.lastErrorMessage, true);
1198                         } }, 500);
1199         }
1200 }
1201
1202 function gotoOnline() {
1203 //      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?"))) {
1204         if (confirm(__("Tiny Tiny RSS will reload. Go online?"))) {
1205                 //localServer.removeManagedStore("tt-rss");
1206                 window.location.href = "tt-rss.php?online=1";
1207         }
1208 }
1209
1210 function local_collapse_cat(id) {
1211         try {
1212                 if (db) {
1213                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1214                                 [id]);
1215                 }
1216         } catch (e) {
1217                 exception_error("local_collapse_cat", e);
1218         }
1219 }
1220
1221 function get_local_category_title(id) {
1222         try {
1223
1224                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1225                 var tmp = "";
1226
1227                 if (rs.isValidRow()) {
1228                         tmp = rs.field(0);
1229                 }
1230
1231                 rs.close();
1232
1233                 return tmp;
1234
1235         } catch (e) {
1236                 exception_error("get_local_category_title", e);
1237         }
1238 }
1239
1240 function get_local_category_unread(id) {
1241         try {
1242                 var rs = false;
1243
1244                 if (id >= 0) {
1245                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1246                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1247                 } else if (id == -2) {
1248                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1249                                 "where article_labels.id = articles.id");
1250                 } else {
1251                         return 0;
1252                 }
1253
1254                 var tmp = 0;
1255
1256                 if (rs.isValidRow()) {
1257                         tmp = rs.field(0);
1258                 }
1259
1260                 rs.close();
1261
1262                 return tmp;
1263
1264         } catch (e) {
1265                 exception_error("get_local_category_unread", e);
1266         }
1267 }
1268
1269 function printCategoryHeader(cat_id, hidden, can_browse) {
1270         try {
1271                 if (hidden == undefined) hidden = false;
1272                 if (can_browse == undefined) can_browse = false;
1273
1274                         var tmp_category = get_local_category_title(cat_id);
1275                         var tmp = "";
1276
1277                         var cat_unread = get_local_category_unread(cat_id);
1278
1279                         var holder_style = "";
1280                         var ellipsis = "";
1281
1282                         if (hidden) {
1283                                 holder_style = "display:none;";
1284                                 ellipsis = "…";
1285                         }
1286
1287                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1288
1289                         var browse_cat_link = "";
1290                         var inner_title_class = "catTitleNL";
1291
1292                         if (can_browse) {
1293                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1294                                 inner_title_class = "catTitle";
1295                         }
1296
1297                         var cat_class = "feedCat";
1298
1299                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1300                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1301                                         " title=\""+__('Click to collapse category')+"\""+
1302                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1303                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1304                                 "\">"+tmp_category+"</span>";
1305
1306                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1307
1308                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1309                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1310
1311                         tmp += "</span>";
1312
1313                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1314                                 "style='"+holder_style+"'>";
1315
1316                         return tmp;
1317         } catch (e) {
1318                 exception_error("printCategoryHeader", e);
1319         }
1320 }
1321
1322 function is_local_cat_collapsed(id) {
1323         try {
1324
1325                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1326                 var cat_hidden = 0;
1327
1328                 if (rs.isValidRow()) {
1329                         cat_hidden = rs.field(0);
1330                 }
1331
1332                 rs.close();
1333
1334                 return cat_hidden == "1";
1335
1336         } catch (e) {
1337                 exception_error("is_local_cat_collapsed", e);
1338         }
1339 }
1340
1341 function get_local_article_labels(id) {
1342         try {
1343                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1344                         "FROM labels, article_labels "+
1345                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1346
1347                 var tmp = new Array();
1348
1349                 while (rs.isValidRow()) {
1350                         var e = new Array();
1351
1352                         e[0] = rs.field(0);
1353                         e[1] = rs.field(1);
1354                         e[2] = rs.field(2);
1355                         e[3] = rs.field(3);
1356
1357                         tmp.push(e);
1358
1359                         rs.next();
1360                 }
1361
1362                 return tmp;
1363
1364         } catch (e) {
1365                 exception_error("get_local_article_labels", e);
1366         }
1367 }
1368
1369 function label_local_add_article(id, label_id) {
1370         try {
1371                 //console.log("label_local_add_article " + id + " => " + label_id);
1372
1373                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1374                         "id = ? AND label_id = ?", [id, label_id]);
1375                 var check = rs.field(0);
1376
1377                 if (rs.isValidRow()) {
1378                         var check = rs.field(0);
1379                 }
1380                 rs.close();
1381
1382                 if (check == 0) {
1383                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1384                                 "(?,?)", [id, label_id]);
1385                 }
1386
1387         } catch (e) {
1388                 exception_error("label_local_add_article", e);
1389         }
1390 }
1391
1392 function get_local_feed_title(id) {
1393         try {
1394
1395                 var feed_title = "Unknown feed: " + id;
1396
1397                 if (id > 0) {
1398                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1399
1400                         if (rs.isValidRow()) {
1401                                 feed_title = rs.field(0);
1402                         }
1403
1404                         rs.close();
1405                 } else if (id == -1) {
1406                         feed_title = __("Starred articles");
1407                 } else if (id == -4) {
1408                         feed_title = __("All articles");
1409                 } else if (id < -10) {
1410
1411                         var label_id = -11 - id;
1412
1413                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1414
1415                         if (rs.isValidRow()) {
1416                                 feed_title = rs.field(0);
1417                         }
1418
1419                         rs.close();
1420                 }
1421
1422                 return feed_title;
1423
1424         } catch (e) {
1425                 exception_error("get_local_feed_title", e);
1426         }
1427 }
1428
1429 function format_article_labels(labels, id) {
1430         try {
1431
1432                 var labels_str = "";
1433
1434                 if (!labels) return "";
1435
1436                 for (var i = 0; i < labels.length; i++) {
1437                         var l = labels[i];
1438
1439                         labels_str += "<span class='hlLabelRef' "+
1440                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1441                 }
1442
1443                 return labels_str;
1444
1445         } catch (e) {
1446                 exception_error("format_article_labels", e);
1447         }
1448 }
1449
1450 function init_local_sync_data() {
1451         try {
1452
1453                 if (!db) return;
1454
1455                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1456                 var has_last_online = 0;
1457
1458                 if (rs.isValidRow()) {
1459                         has_last_online = rs.field(0);
1460                 }
1461
1462                 rs.close();
1463
1464                 if (!has_last_online) {
1465                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1466                 }
1467
1468         } catch (e) {
1469                 exception_error("init_local_sync_data", e);
1470
1471         }
1472 }
1473
1474 function has_local_sync_data() {
1475         try {
1476
1477                 var rs = db.execute("SELECT id FROM articles "+
1478                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1479                         "LIMIT 1");
1480
1481                 var tmp = 0;
1482
1483                 if (rs.isValidRow()) {
1484                         tmp = rs.field(0);
1485                 }
1486
1487                 rs.close();
1488
1489                 return tmp != 0;
1490
1491         } catch (e) {
1492                 exception_error("has_local_sync_data", e);
1493         }
1494 }
1495
1496 function prepare_local_sync_data() {
1497         try {
1498                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1499
1500                 var last_online = "";
1501
1502                 if (rs.isValidRow()) {
1503                         last_online = rs.field(0);
1504                 }
1505
1506                 rs.close();
1507
1508                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1509                         "WHERE modified > ? LIMIT 200", [last_online]);
1510
1511                 var tmp = last_online + ";";
1512
1513                 var entries = 0;
1514
1515                 while (rs.isValidRow()) {
1516                         var e = new Array();
1517
1518                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1519                         entries++;
1520
1521                         rs.next();
1522                 }
1523
1524                 rs.close();
1525
1526                 if (entries > 0) {
1527                         return tmp;
1528                 } else {
1529                         return '';
1530                 }
1531
1532         } catch (e) {
1533                 exception_error("prepare_local_sync_data", e);
1534         }
1535 }
1536
1537 function update_local_sync_data() {
1538         try {
1539                 if (db && !offline_mode) {
1540
1541                         var rs = db.execute("SELECT id FROM articles "+
1542                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1543                                         "key = 'last_online') LIMIT 1")
1544
1545                         var f_id = 0;
1546
1547                         if (rs.isValidRow()) {
1548                                 f_id = rs.field(0);
1549                         }
1550
1551                         rs.close();
1552
1553                         /* no pending articles to sync */
1554
1555                         if (f_id == 0) {
1556                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1557                                         "WHERE key = 'last_online'");
1558                         }
1559
1560                 }
1561         } catch (e) {
1562                 exception_error("update_local_sync_data", e);
1563         }
1564 }
1565
1566 function catchup_local_feed(id, is_cat) {
1567         try {
1568                 if (!db) return;
1569
1570                 if (!is_cat) {
1571                         if (id >= 0) {
1572                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1573                         } else if (id == -1) {
1574                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1575                         } else if (id == -4) {
1576                                 db.execute("UPDATE articles SET unread = 0");
1577                         } else if (id < -10) {
1578                                 var label_id = -11-id;
1579
1580                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1581                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1582                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1583                         }
1584                 }
1585
1586                 update_local_feedlist_counters();
1587
1588         } catch (e) {
1589                 exception_error("catchup_local_feed", e);
1590         }
1591 }
1592
1593 function toggleOfflineModeInfo() {
1594         try {
1595                 var e = $('offlineModeDrop');
1596                 var p = $('offlineModePic');
1597
1598                 if (Element.visible(e)) {
1599                         Element.hide(e);
1600                 } else {
1601                         Element.show(e);
1602                 }
1603
1604         } catch (e) {
1605                 exception_error("toggleOfflineModeInfo", e);
1606         }
1607 }
1608
1609 function offlineDownloadStart(stage) {
1610         try {
1611                 if (!stage) stage = 0;
1612
1613                 if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
1614                         window.setTimeout("update_offline_data("+stage+")", 100);
1615                 }
1616         } catch (e) {
1617                 exception_error("offlineDownloadStart", e);
1618         }
1619 }
1620
1621 function offlineDownloadStop() {
1622         try {
1623                 if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
1624
1625                         sync_in_progress = false;
1626
1627                         if (sync_timer) {
1628                                 window.clearTimeout(sync_timer);
1629                                 sync_timer = false;
1630                         }
1631
1632                         var pic = $("offlineModePic");
1633
1634                         if (pic) {
1635                                 pic.src = "images/offline.png";
1636                                 var msg = __("Last sync: Cancelled.");
1637                                 articles_synced = 0;
1638                                 $("offlineModeSyncMsg").innerHTML = msg;
1639                         }
1640
1641                         offlineSyncShowHideElems(false);
1642
1643                 }
1644         } catch (e) {
1645                 exception_error("offlineDownloadStart", e);
1646         }
1647 }
1648
1649 function offlineClearData() {
1650         try {
1651                 if (db) {
1652
1653                         if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
1654
1655                                 notify_progress("Removing offline data...");
1656
1657                                 localServer.removeManagedStore("tt-rss");
1658
1659                                 db.execute("DELETE FROM articles");
1660                                 db.execute("DELETE FROM article_labels");
1661                                 db.execute("DELETE FROM labels");
1662                                 db.execute("DELETE FROM feeds");
1663                                 db.execute("DELETE FROM cache");
1664
1665                                 notify_info("Local data removed.");
1666                         }
1667                 }
1668         } catch (e) {
1669                 exception_error("offlineClearData", e);
1670         }
1671 }
1672
1673 function offlineUpdateStore() {
1674         try {
1675                 if (offline_mode || !store) return;
1676
1677                 store.checkForUpdate();
1678
1679                 var timerId = window.setInterval(function() {
1680                         if (store.currentVersion) {
1681                                 window.clearInterval(timerId);
1682                                 console.log("[Local store] sync complete: " + store.currentVersion);
1683                         } else if (store.updateStatus == 3) {
1684                                 console.log("[Local store] sync error: " + store.lastErrorMessage);
1685                         } }, 500);
1686
1687         } catch (e) {
1688                 exception_error("offlineUpdateStore", e);
1689         }
1690 }
1691
1692 function offlineSyncShowHideElems(syncing) {
1693         try {
1694
1695                 var elems = $$("div.hideWhenSyncing");
1696
1697                 for (var j = 0; j < elems.length; j++) {
1698                         if (syncing) {
1699                                 Element.hide(elems[j]);
1700                         } else {
1701                                 Element.show(elems[j]);
1702                         }
1703                 }
1704
1705                 var elems = $$("div.showWhenSyncing");
1706
1707                 for (var j = 0; j < elems.length; j++) {
1708                         if (syncing) {
1709                                 Element.show(elems[j]);
1710                         } else {
1711                                 Element.hide(elems[j]);
1712                         }
1713                 }
1714
1715         } catch (e) {
1716                 exception_error("offlineSyncShowHideElems", e);
1717         }
1718 }
1719
1720 function offlineConfirmModeChange() {
1721         try {
1722
1723                 if (db && getInitParam("offline_enabled") == "1" && offlineArticlesStored() > 0) {
1724                         var ok = confirm(__("Tiny Tiny RSS has trouble accessing its server. Would you like to go offline?"));
1725
1726                         if (ok) {
1727                                 init_offline();
1728                         }
1729                 }
1730
1731         } catch (e) {
1732                 exception_error("offlineConfirmModeChange", e);
1733         }
1734 }
1735
1736 function printFeedEntry(id, title, row_class, unread, icon) {
1737
1738         var tmp = "";
1739         var fctr_class = "";
1740         var feed_icon = "";
1741
1742         if (unread > 0) {
1743                 row_class += "Unread";
1744                 fctr_class = "feedCtrHasUnread";
1745         } else {
1746                 fctr_class = "feedCtrNoUnread";
1747         }
1748
1749         if (icon) {
1750                 feed_icon = "<img id='FIMG-"+id+"' src='" + icon + "'>";
1751         } else {
1752                 feed_icon = "<img id='FIMG-"+id+"' src='images/blank_icon.gif'>";
1753         }
1754
1755         var link = "<a title=\"FIXME\" id=\"FEEDL-"+id+"\""+
1756                 "href=\"javascript:viewfeed('"+id+"', '', false, '', false, 0);\">"+
1757                 title + "</a>";
1758
1759         tmp += "<li id='FEEDR-"+id+"' class="+row_class+">" + feed_icon +
1760                 "<span id=\"FEEDN-"+id+"\">" + link + "</span>";
1761
1762         tmp += " <span class='"+fctr_class+"' id=\"FEEDCTR-"+id+"\">" +
1763            "(<span id=\"FEEDU-"+id+"\">"+unread+"</span>)</span>";
1764
1765         tmp += "</li>";
1766
1767         return tmp;
1768 }
1769
1770