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, 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                 Form.enable("main_toolbar_form");
 114
 115                 var f = $("headlines-frame");
 116                 try {
 117                         if (reply.offset == 0) {
 118                                 debug("resetting headlines scrollTop");
 119                                 f.scrollTop = 0;
 120                         }
 121                 } catch (e) { };
 122
 123
 124                 var tmp = "";
 125                 var feed_title = "";
 126
 127                 if (is_cat) {
 128                         feed_title = get_local_category_title(feed_id);
 129                 } else {
 130                         feed_title = get_local_feed_title(feed_id);
 131                 }
 132
 133                 if (feed_title) {
 134
 135                         if (offset == 0) {
 136                                 tmp += "<div id=\"headlinesContainer\">";
 137
 138                                 tmp += "<div class=\"headlinesSubToolbar\">";
 139                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 140                                 tmp += feed_title;
 141                                 tmp += "</div>";
 142
 143                                 var sel_all_link;
 144                                 var sel_unread_link;
 145                                 var sel_none_link;
 146                                 var sel_inv_link;
 147
 148                                 var catchup_feed_link = "javascript:catchupCurrentFeed()";
 149                                 var catchup_sel_link = "javascript:catchupSelection()";
 150
 151                                 var tog_unread_link;
 152                                 var tog_marked_link;
 153
 154                                 if ($("content-frame")) {
 155                                         sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
 156                                         sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
 157                                         sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
 158                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 159
 160                                         tog_unread_link = "javascript:selectionToggleUnread()";
 161                                         tog_marked_link = "javascript:selectionToggleMarked()";
 162
 163                                 } else {
 164                                         sel_all_link = "javascript:cdmSelectArticles('all')";
 165                                         sel_unread_link = "javascript:cdmSelectArticles('unread')";
 166                                         sel_none_link = "javascript:cdmSelectArticles('none')";
 167                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 168
 169                                         tog_unread_link = "javascript:selectionToggleUnread(true)";
 170                                         tog_marked_link = "javascript:selectionToggleMarked(true)";
 171                                 }
 172
 173                                 tmp += __('Select:')+
 174                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 175                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 176                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 177                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 178
 179                                 tmp += "&nbsp;&nbsp;";
 180
 181                                 tmp += "<span onmouseover=\"enable_selection(false)\" "+
 182                                         "onmouseout=\"enable_selection(true) \"" +
 183                                         "onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">" +
 184                                         __("Actions...") + "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">" +
 185                                 "</span>";
 186
 187                                 tmp += "<ul id=\"headlineActionsBody\" style=\"display : none\">";
 188
 189                                 tmp += "<li class=\"insensitive\">"+__('Selection toggle:')+"</li>"+
 190                                 "<li onclick=\""+tog_unread_link+"\">&nbsp;&nbsp;"+__('Unread')+"</li>"+
 191                                 "<li onclick=\""+tog_marked_link+"\">&nbsp;&nbsp;"+__('Starred')+"</li>"+
 192                                 "<li class=\"insensitive\">"+__('Mark as read:')+"</li>"+
 193                                 "<li onclick=\""+catchup_sel_link+"\">&nbsp;&nbsp;"+__('Selection')+"</li>";
 194
 195                                 tmp += "<li onclick=\""+catchup_feed_link+"\">&nbsp;&nbsp;"+__('Entire feed')+
 196                                         "</li>";
 197
 198                                 tmp += "</ul>";
 199
 200                                 tmp += "</div>";
 201
 202                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 203                                 if ($("content-frame")) {
 204                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 205                                 }
 206
 207                         }
 208
 209                         var limit = 30;
 210
 211                         var toolbar_form = document.forms["main_toolbar_form"];
 212
 213                         //var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 214                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 215
 216                         var limit_qpart = "";
 217                         var strategy_qpart = "";
 218                         var mode_qpart = "";
 219                         var offset_qpart = "";
 220
 221                         if (limit != 0) {
 222                                 limit_qpart = "LIMIT " + limit;
 223                         }
 224
 225                         if (view_mode == "all_articles") {
 226                                 mode_qpart = "1";
 227                         } else if (view_mode == "adaptive") {
 228                                 if (is_cat && get_local_category_unread(feed_id) ||
 229                                         get_local_feed_unread(feed_id) > 0) {
 230                                                 mode_qpart = "unread = 1";
 231                                 } else {
 232                                         mode_qpart = "1";
 233                                 }
 234
 235                         } else if (view_mode == "marked") {
 236                                 mode_qpart = "marked = 1";
 237                         } else if (view_mode == "unread") {
 238                                 mode_qpart = "unread = 1";
 239                         } else {
 240                                 mode_qpart = "1";
 241                         }
 242
 243                         var ext_tables_qpart = "";
 244
 245                         if (is_cat) {
 246                                 if (feed_id >= 0) {
 247                                         strategy_qpart = "cat_id = " + feed_id;
 248                                 } else if (feed_id == -2) {
 249                                         strategy_qpart = "article_labels.id = articles.id";
 250                                         ext_tables_qpart = ",article_labels";
 251                                 }
 252                         } else if (feed_id > 0) {
 253                                 strategy_qpart = "feed_id = " + feed_id;
 254                         } else if (feed_id == -1) {
 255                                 strategy_qpart = "marked = 1";
 256                         } else if (feed_id == -4) {
 257                                 strategy_qpart = "1";
 258                         } else if (feed_id < -10) {
 259                                 var label_id = -11 - feed_id;
 260                                 strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
 261                                 ext_tables_qpart = ",article_labels";
 262                         }
 263
 264                         if (offset > 0) {
 265                                 offset_qpart = "OFFSET " + (offset*30);
 266                         } else {
 267                                 offset_qpart = "";
 268                         }
 269
 270                         var query = "SELECT *,feeds.title AS feed_title "+
 271                                 "FROM articles,feeds,categories"+ext_tables_qpart+" "+
 272                                 "WHERE " +
 273                                 "cat_id = categories.id AND " +
 274                                 "feed_id = feeds.id AND " +
 275                                 strategy_qpart +
 276                                 " AND " + mode_qpart +
 277                                 " ORDER BY updated DESC "+
 278                                 limit_qpart + " " +
 279                                 offset_qpart;
 280
 281                         var rs = db.execute(query);
 282
 283                         var line_num = offset*30;
 284
 285                         var real_feed_id = feed_id;
 286
 287                         while (rs.isValidRow()) {
 288
 289                                 var id = rs.fieldByName("id");
 290                                 var feed_id = rs.fieldByName("feed_id");
 291
 292                                 var entry_feed_title = false;
 293
 294                                 if (real_feed_id < 0 || is_cat) {
 295                                         entry_feed_title = rs.fieldByName("feed_title");
 296                                 }
 297
 298                                 var marked_pic;
 299
 300                                 var row_class = (line_num % 2) ? "even" : "odd";
 301
 302                                 if (rs.fieldByName("unread") == "1") {
 303                                         row_class += "Unread";
 304                                 }
 305
 306                                 var labels = get_local_article_labels(id);
 307
 308                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 309                                 labels_str += format_article_labels(labels, id);
 310                                 labels_str += "</span>";
 311
 312                                 if (rs.fieldByName("marked") == "1") {
 313                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 314                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 315                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 316                                 } else {
 317                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 318                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 319                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 320                                 }
 321
 322                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 323                                         "onmouseout='postMouseOut($id)'";
 324
 325                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 326                                                 100);
 327
 328                                 if ($("content-frame")) {
 329
 330                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 331
 332                                         tmp += "<td class='hlUpdPic'> </td>";
 333
 334                                         tmp += "<td class='hlSelectRow'>"+
 335                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 336
 337                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 338
 339                                         tmp += "<td onclick='view("+id+")' "+
 340                                                 "class='hlContent' valign='middle'>";
 341
 342                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 343                                                 rs.fieldByName("link") + "\"" +
 344                                                 "onclick=\"return view("+id+");\">"+
 345                                                 rs.fieldByName("title");
 346
 347                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 348
 349                                         tmp += "</a>";
 350
 351                                         tmp += labels_str;
 352
 353                                         if (entry_feed_title) {
 354                                                 tmp += " <span class=\"hlFeed\">"+
 355                                                         "(<a href='javascript:viewfeed("+feed_id+
 356                                                         ")'>"+entry_feed_title+"</a>)</span>";
 357                                         }
 358
 359                                         tmp += "</td>";
 360
 361                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+")'>"+
 362                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 363                                                 "</nobr></td>";
 364
 365                                         tmp += "</tr>";
 366                                 } else {
 367
 368                                         var add_class = "";
 369
 370                                         if (rs.fieldByName("unread") == "1") {
 371                                                 add_class = "Unread";
 372                                         }
 373
 374                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 375                                                 mouseover_attrs+"'>";
 376
 377                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 378                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 379                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 380                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 381
 382                                         tmp += "<div class=\"cdmHeader\">";
 383                                         tmp += "<div class=\"articleUpdated\">"+
 384                                                 rs.fieldByName("updated").substring(0,16)+
 385                                                 " "+cdm_feed_icon+"</div>";
 386
 387                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 388                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 389                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 390                                                 "\">"+rs.fieldByName("title")+"</a>";
 391
 392                                         tmp += labels_str;
 393
 394                                         if (entry_feed_title) {
 395                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 396                                                         ")'>"+entry_feed_title+"</a>)";
 397                                         }
 398
 399                                         tmp += "</span></div>";
 400
 401                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 402                                                 "id=\"CICD-"+id+"\">";
 403                                         tmp += rs.fieldByName("content");
 404                                         tmp += "<br clear='both'>"
 405                                         tmp += "</div>";
 406
 407                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 408                                         tmp += __("Select:")+
 409                                                 " <input type=\"checkbox\" "+
 410                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 411                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 412
 413                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 414
 415 /*                                      tmp += "<span class='s1'>"+
 416                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 417                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 418                                                 "</span>"; */
 419
 420                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 421                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 422                                                 "Unread</a></span>";
 423                                         tmp += "</div>";
 424
 425                                         tmp += "</div>";
 426                                 }
 427
 428                                 rs.next();
 429                                 line_num++;
 430                         }
 431
 432                         if (line_num - offset*30 < 30) {
 433                                 _infscroll_disable = 1;
 434                         }
 435
 436                         rs.close();
 437
 438                         if (offset == 0) {
 439                                 tmp += "</table>";
 440
 441                                 if (line_num - offset*30 == 0) {
 442                                         tmp += "<div class='whiteBox'>" +
 443                                                 __("No articles found to display.") +
 444                                                 "</div>";
 445                                 }
 446                                 tmp += "</div></div>";
 447                         }
 448
 449                         if (offset == 0) {
 450                                 var container = $("headlines-frame");
 451                                 container.innerHTML = tmp;
 452                         } else {
 453                                 var ids = getSelectedArticleIds2();
 454
 455                                 var container = $("headlinesList");
 456                                 container.innerHTML = container.innerHTML + tmp;
 457
 458                                 for (var i = 0; i < ids.length; i++) {
 459                                         markHeadline(ids[i]);
 460                                 }
 461                         }
 462                 }
 463
 464                 remove_splash();
 465
 466                 _infscroll_request_sent = 0;
 467
 468         } catch (e) {
 469                 exception_error("viewfeed_offline", e);
 470         }
 471 }
 472
 473 function render_offline_feedlist() {
 474         try {
 475                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 476
 477                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 478
 479                 var unread = get_local_feed_unread(-4);
 480
 481                 global_unread = unread;
 482                 updateTitle();
 483
 484                 if (cats_enabled) {
 485                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 486                 }
 487
 488                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 489                         "images/tag.png");
 490
 491                 var unread = get_local_feed_unread(-1);
 492
 493                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 494                         "images/mark_set.png");
 495
 496                 if (cats_enabled) {
 497                         tmp += "</ul></li>";
 498                 } else {
 499                         tmp += "<li><hr/></li>";
 500                 }
 501
 502                 if (cats_enabled) {
 503                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 504                 }
 505
 506                 var rs = db.execute("SELECT id,caption "+
 507                         "FROM labels "+
 508                         "ORDER BY caption");
 509
 510                 while (rs.isValidRow()) {
 511                         var id = -11 - parseInt(rs.field(0));
 512                         var caption = rs.field(1);
 513                         var unread = get_local_feed_unread(id);
 514
 515                         tmp += printFeedEntry(id, caption, "feed", unread,
 516                                 "images/label.png");
 517
 518                         rs.next();
 519                 }
 520
 521                 rs.close();
 522
 523                 if (cats_enabled) {
 524                         tmp += "</ul></li>";
 525                 } else {
 526                         tmp += "<li><hr/></li>";
 527                 }
 528
 529 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 530                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 531                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 532                         "ORDER BY feeds.title"); */
 533
 534                 var order_by = "feeds.title";
 535
 536                 if (cats_enabled) order_by = "categories.title," + order_by;
 537
 538                 var rs = db.execute("SELECT "+
 539                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 540                         "FROM feeds,categories WHERE cat_id = categories.id "+
 541                         "ORDER BY "+order_by);
 542
 543                 var tmp_cat_id = -1;
 544
 545                 while (rs.isValidRow()) {
 546
 547                         var id = rs.field(0);
 548                         var title = rs.field(1);
 549                         var has_icon = rs.field(2);
 550                         var unread = get_local_feed_unread(id);
 551                         var cat_id = rs.field(3);
 552                         var cat_hidden = rs.field(4);
 553
 554                         if (cat_id != tmp_cat_id && cats_enabled) {
 555                                 if (tmp_cat_id != -1) {
 556                                         tmp += "</ul></li>";
 557                                 }
 558                                 tmp += printCategoryHeader(cat_id, cat_hidden, true);
 559                                 tmp_cat_id = cat_id;
 560                         }
 561
 562                         var icon = "";
 563
 564                         if (has_icon) {
 565                                 icon = getInitParam("icons_url") + "/" + id + ".ico";
 566                         }
 567
 568                         var feed_icon = "";
 569
 570                         var row_class = "feed";
 571
 572                         if (unread > 0) {
 573                                 row_class += "Unread";
 574                                 fctr_class = "feedCtrHasUnread";
 575                         } else {
 576                                 fctr_class = "feedCtrNoUnread";
 577                         }
 578
 579                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 580
 581                         rs.next();
 582                 }
 583
 584                 rs.close();
 585
 586                 if (cats_enabled) {
 587                         tmp += "</ul>";
 588                 }
 589
 590                 tmp += "</ul>";
 591
 592                 render_feedlist(tmp);
 593         } catch (e) {
 594                 exception_error("render_offline_feedlist", e);
 595         }
 596 }
 597
 598 function init_offline() {
 599         try {
 600                 offline_mode = true;
 601                 store.enabled = true;
 602
 603                 Element.hide("dispSwitchPrompt");
 604
 605                 Element.hide("topLinksOnline");
 606                 Element.show("topLinksOffline");
 607
 608                 var tb_form = $("main_toolbar_form");
 609                 Element.hide(tb_form.update);
 610
 611                 var chooser = $("quickMenuChooser");
 612                 chooser.disabled = true;
 613
 614                 var rs = db.execute("SELECT key, value FROM init_params");
 615
 616                 while (rs.isValidRow()) {
 617                         init_params[rs.field(0)] = rs.field(1);
 618                         rs.next();
 619                 }
 620
 621                 rs.close();
 622
 623                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 624
 625                 var num_feeds = 0;
 626
 627                 if (rs.isValidRow()) {
 628                         num_feeds = rs.field(0);
 629                 }
 630
 631                 rs.close();
 632
 633                 if (num_feeds == 0) {
 634                         remove_splash();
 635                         return fatalError(0,
 636                                 __("Data for offline browsing has not been downloaded yet."));
 637                 }
 638
 639                 render_offline_feedlist();
 640                 init_second_stage();
 641                 window.setTimeout("viewfeed(-4)", 50);
 642
 643         } catch (e) {
 644                 exception_error("init_offline", e);
 645         }
 646 }
 647
 648 function offline_download_parse(stage, transport) {
 649         try {
 650                 if (transport.responseXML) {
 651
 652                         if (!sync_in_progress) return;
 653
 654                         var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
 655
 656                         if (sync_ok.length > 0) {
 657                                 for (var i = 0; i < sync_ok.length; i++) {
 658                                         var id = sync_ok[i].getAttribute("id");
 659                                         var unread = sync_ok[i].getAttribute("unread");
 660                                         var marked = sync_ok[i].getAttribute("marked");
 661
 662                                         if (id) {
 663                                                 debug("synced offline info for id " + id);
 664
 665                                                 if (unread != undefined && marked != undefined) {
 666                                                         db.execute("UPDATE articles SET "+
 667                                                                 "unread = ?, marked = ? WHERE id = ?", [unread, marked, id]);
 668
 669                                                 }
 670                                                 db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
 671                                         }
 672                                 }
 673                         }
 674
 675                         if (stage == 0) {
 676
 677                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing feeds...");
 678
 679                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 680
 681                                 if (feeds.length > 0) {
 682                                         db.execute("DELETE FROM feeds");
 683                                 }
 684
 685                                 for (var i = 0; i < feeds.length; i++) {
 686                                         var id = feeds[i].getAttribute("id");
 687                                         var has_icon = feeds[i].getAttribute("has_icon");
 688                                         var title = feeds[i].firstChild.nodeValue;
 689                                         var cat_id = feeds[i].getAttribute("cat_id");
 690
 691                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 692                                                 "VALUES (?,?,?,?)",
 693                                                 [id, title, has_icon, cat_id]);
 694                                 }
 695
 696                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing categories...");
 697
 698                                 var cats = transport.responseXML.getElementsByTagName("category");
 699
 700                                 if (feeds.length > 0) {
 701                                         db.execute("DELETE FROM categories");
 702                                 }
 703
 704                                 for (var i = 0; i < cats.length; i++) {
 705                                         var id = cats[i].getAttribute("id");
 706                                         var collapsed = cats[i].getAttribute("collapsed");
 707                                         var title = cats[i].firstChild.nodeValue;
 708
 709                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 710                                                 "VALUES (?,?,?)",
 711                                                 [id, title, collapsed]);
 712                                 }
 713
 714                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing labels...");
 715
 716                                 var labels = transport.responseXML.getElementsByTagName("label");
 717
 718                                 if (labels.length > 0) {
 719                                         db.execute("DELETE FROM labels");
 720                                 }
 721
 722                                 for (var i = 0; i < labels.length; i++) {
 723                                         var id = labels[i].getAttribute("id");
 724                                         var fg_color = labels[i].getAttribute("fg_color");
 725                                         var bg_color = labels[i].getAttribute("bg_color");
 726                                         var caption = labels[i].firstChild.nodeValue;
 727
 728                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 729                                                 "VALUES (?,?,?,?)",
 730                                                 [id, caption, fg_color, bg_color]);
 731                                 }
 732
 733                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing articles...");
 734
 735                                 sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 2*1000);
 736                         } else {
 737
 738                                 var articles = transport.responseXML.getElementsByTagName("article");
 739
 740                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 741
 742                                 if (limit) {
 743                                         limit = limit.getAttribute("value");
 744                                 } else {
 745                                         limit = 0;
 746                                 }
 747
 748                                 var articles_found = 0;
 749
 750                                 for (var i = 0; i < articles.length; i++) {
 751                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 752                                         articles_found++;
 753                                         if (a) {
 754
 755                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 756
 757                                                 db.execute("INSERT INTO articles "+
 758                                                 "(id, feed_id, title, link, guid, updated, content, "+
 759                                                         "unread, marked, tags, comments) "+
 760                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 761                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 762                                                                 a.content, a.unread, a.marked, a.tags,
 763                                                                 a.comments]);
 764
 765                                                 if (a.labels.length > 0) {
 766                                                         for (var j = 0; j < a.labels.length; j++) {
 767                                                                 label_local_add_article(a.id, a.labels[j][0]);
 768                                                         }
 769                                                 }
 770
 771                                         }
 772                                 }
 773
 774                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 775
 776                                 articles_synced += articles_found;
 777
 778                                 var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
 779
 780                                 $("offlineModeSyncMsg").innerHTML = msg;
 781
 782                                 var has_sync_data = has_local_sync_data();
 783
 784                                 if (articles_found >= limit || has_sync_data) {
 785                                         sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
 786                                                 3*1000);
 787                                         debug("<b>update_offline_data: done " + stage + " HSD: " +
 788                                                 has_sync_data + "</b>");
 789                                 } else {
 790                                         window.setTimeout("offlineDownloadStart()", 180*1000);
 791                                         debug("update_offline_data: finished");
 792
 793                                         var pic = $("offlineModePic");
 794
 795                                         if (pic) {
 796                                                 pic.src = "images/offline.png";
 797
 798                                                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
 799                                                 var last_sync = "";
 800
 801                                                 if (rs.isValidRow()) {
 802                                                         last_sync = rs.field(0).substring(0,16);
 803                                                 }
 804                                                 rs.close();
 805
 806                                                 var msg = __("Last sync: %s").replace("%s", last_sync);
 807
 808                                                 articles_synced = 0;
 809
 810                                                 $("offlineModeSyncMsg").innerHTML = msg;
 811                                         }
 812
 813                                         offlineSyncShowHideElems(false);
 814
 815                                         sync_in_progress = false;
 816
 817                                         db.execute("DELETE FROM articles WHERE "+
 818                                                 "updated < DATETIME('NOW', 'localtime', '-31 days')");
 819
 820                                 }
 821                         }
 822
 823                         update_local_sync_data();
 824
 825
 826 //                      notify('');
 827
 828                 } else {
 829                         sync_in_progress = false;
 830
 831                         var pic = $("offlineModePic");
 832
 833                         if (pic) {
 834                                 pic.src = "images/offline.png";
 835                                 var msg = __("Last sync: Error receiving data.");
 836                                 articles_synced = 0;
 837                                 $("offlineModeSyncMsg").innerHTML = msg;
 838                         }
 839
 840                         offlineSyncShowHideElems(false);
 841                 }
 842
 843         } catch (e) {
 844                 exception_error("offline_download_parse", e);
 845         }
 846 }
 847
 848 function update_offline_data(stage) {
 849         try {
 850
 851                 if (!stage) stage = 0;
 852
 853                 if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
 854
 855                 var query = "?op=rpc&subop=download";
 856
 857                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 858
 859                 if (rs.isValidRow() && rs.field(0)) {
 860                         var offline_dl_max_id = rs.field(0);
 861                         var offline_dl_min_id = rs.field(1);
 862
 863                         query = query + "&cidt=" + offline_dl_max_id;
 864                         query = query + "&cidb=" + offline_dl_min_id;
 865
 866                         if (stage > 0) stage = 1;
 867                 }
 868
 869                 rs.close();
 870
 871                 debug("update_offline_data: stage " + stage);
 872
 873                 query = query + "&stage=" + stage;
 874
 875                 var to_sync = prepare_local_sync_data();
 876
 877                 if (to_sync != "") {
 878                         to_sync = "&sync=" + param_escape(to_sync);
 879                 }
 880
 881                 query = query + to_sync;
 882
 883                 var pic = $("offlineModePic");
 884
 885                 if (pic) {
 886                         pic.src = "images/offline-sync.gif";
 887                         if (articles_synced == 0) {
 888                                 $("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
 889                         }
 890                 }
 891
 892                 offlineSyncShowHideElems(true);
 893                 offlineUpdateStore();
 894
 895                 sync_in_progress = true;
 896
 897                 debug(query);
 898
 899                 new Ajax.Request("backend.php", {
 900                         parameters: query,
 901                         onComplete: function(transport) {
 902                                 offline_download_parse(stage, transport);
 903                         } });
 904
 905         } catch (e) {
 906                 exception_error("initiate_offline_download", e);
 907         }
 908 }
 909
 910 function set_feedlist_counter(id, ctr, is_cat) {
 911         try {
 912
 913                 var feedctr = $("FEEDCTR-" + id);
 914                 var feedu = $("FEEDU-" + id);
 915                 var feedr = $("FEEDR-" + id);
 916
 917                 if (is_cat) {
 918                         var catctr = $("FCATCTR-" + id);
 919                         if (catctr) {
 920                                 catctr.innerHTML = "(" + ctr + ")";
 921                                 if (ctr > 0) {
 922                                         catctr.className = "catCtrHasUnread";
 923                                 } else {
 924                                         catctr.className = "catCtrNoUnread";
 925                                 }
 926                         }
 927                 } else if (feedctr && feedu && feedr) {
 928
 929                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 930
 931                         feedu.innerHTML = ctr;
 932
 933                         if (ctr > 0) {
 934                                 feedctr.className = "feedCtrHasUnread";
 935                                 if (!feedr.className.match("Unread")) {
 936                                         var is_selected = feedr.className.match("Selected");
 937
 938                                         feedr.className = feedr.className.replace("Selected", "");
 939                                         feedr.className = feedr.className.replace("Unread", "");
 940
 941                                         feedr.className = feedr.className + "Unread";
 942
 943                                         if (is_selected) {
 944                                                 feedr.className = feedr.className + "Selected";
 945                                         }
 946
 947                                 }
 948
 949                                 if (row_needs_hl) {
 950                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 951                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 952                                 }
 953                         } else {
 954                                 feedctr.className = "feedCtrNoUnread";
 955                                 feedr.className = feedr.className.replace("Unread", "");
 956                         }
 957                 }
 958
 959         } catch (e) {
 960                 exception_error("set_feedlist_counter", e);
 961         }
 962 }
 963
 964 function update_local_feedlist_counters() {
 965         try {
 966                 if (!offline_mode || !db) return;
 967
 968 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 969                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 970                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 971                         "ORDER BY feeds.title"); */
 972
 973                 var rs = db.execute("SELECT id FROM feeds "+
 974                         "ORDER BY title");
 975
 976                 while (rs.isValidRow()) {
 977                         var id = rs.field(0);
 978                         var ctr = get_local_feed_unread(id);
 979                         set_feedlist_counter(id, ctr, false);
 980                         rs.next();
 981                 }
 982
 983                 rs.close();
 984
 985                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 986                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 987
 988                 while (rs.isValidRow()) {
 989                         var id = rs.field(0);
 990                         var ctr = rs.field(1);
 991                         set_feedlist_counter(id, ctr, true);
 992                         rs.next();
 993                 }
 994
 995                 rs.close();
 996
 997                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 998
 999                 set_feedlist_counter(-4, get_local_feed_unread(-4));
1000                 set_feedlist_counter(-1, get_local_feed_unread(-1));
1001
1002                 var rs = db.execute("SELECT id FROM labels");
1003
1004                 while (rs.isValidRow()) {
1005                         var id = -11 - rs.field(0);
1006                         var ctr = get_local_feed_unread(id);
1007                         set_feedlist_counter(id, ctr, false);
1008                         rs.next();
1009                 }
1010
1011                 rs.close();
1012
1013                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
1014
1015                 global_unread = get_local_feed_unread(-4);
1016                 updateTitle();
1017
1018         } catch (e) {
1019                 exception_error("update_local_feedlist_counters", e);
1020         }
1021 }
1022
1023 function get_local_feed_unread(id) {
1024         try {
1025                 var rs;
1026
1027                 if (id == -4) {
1028                         rs = db.execute("SELECT SUM(unread) FROM articles");
1029                 } else if (id == -1) {
1030                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
1031                 } else if (id > 0) {
1032                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
1033                 } else if (id < -10) {
1034                         var label_id = -11 - id;
1035                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
1036                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
1037                 }
1038
1039                 var a = false;
1040
1041                 if (rs.isValidRow()) {
1042                         a = rs.field(0);
1043                 } else {
1044                         a = 0;
1045                 }
1046
1047                 rs.close();
1048
1049                 return a;
1050
1051         } catch (e) {
1052                 exception_error("get_local_feed_unread", e);
1053         }
1054 }
1055
1056 function enable_offline_reading() {
1057         try {
1058
1059                 if (db && getInitParam("offline_enabled") == "1") {
1060                         init_local_sync_data();
1061                         Element.show("offlineModePic");
1062                         offlineDownloadStart();
1063                 }
1064
1065         } catch (e) {
1066                 exception_error("enable_offline_reading", e);
1067         }
1068 }
1069
1070 function init_gears() {
1071         try {
1072
1073                 if (window.google && google.gears) {
1074
1075                         try {
1076                                 localServer = google.gears.factory.create("beta.localserver");
1077                         } catch (e) {
1078                                 return;
1079                         }
1080
1081                         store = localServer.createManagedStore("tt-rss");
1082                         store.manifestUrl = "manifest.json.php";
1083                         store.enabled = false;
1084
1085                         db = google.gears.factory.create('beta.database');
1086                         db.open('tt-rss');
1087
1088                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1089
1090                         var rs = db.execute("SELECT schema_version FROM version");
1091
1092                         var version = "";
1093
1094                         if (rs.isValidRow()) {
1095                                 version = rs.field(0);
1096                         }
1097
1098                         rs.close();
1099
1100                         if (version != SCHEMA_VERSION) {
1101                                 db.execute("DROP TABLE IF EXISTS init_params");
1102                                 db.execute("DROP TABLE IF EXISTS cache");
1103                                 db.execute("DROP TABLE IF EXISTS feeds");
1104                                 db.execute("DROP TABLE IF EXISTS categories");
1105                                 db.execute("DROP TABLE IF EXISTS labels");
1106                                 db.execute("DROP TABLE IF EXISTS article_labels");
1107                                 db.execute("DROP TABLE IF EXISTS articles");
1108                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
1109                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
1110                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
1111                                 db.execute("DROP INDEX IF EXISTS articles_id_idx");
1112                                 db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
1113                                 db.execute("DROP TABLE IF EXISTS version");
1114                                 db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
1115                                 db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
1116                                 db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
1117                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
1118                                 db.execute("DROP TABLE IF EXISTS syncdata");
1119                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
1120                                         [SCHEMA_VERSION]);
1121                         }
1122
1123                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
1124
1125                         db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
1126                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
1127                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
1128                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
1129                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
1130                         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)");
1131
1132                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
1133                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
1134                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
1135                         db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
1136                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
1137
1138                         db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
1139
1140                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
1141
1142                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
1143                                 "UPDATE OF unread ON articles "+
1144                                 "BEGIN "+
1145                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1146                                 "WHERE id = OLD.id AND "+
1147                                 "OLD.unread != NEW.unread;"+
1148                                 "END;");
1149
1150                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
1151                                 "UPDATE OF marked ON articles "+
1152                                 "BEGIN "+
1153                                 "UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
1154                                 "WHERE id = OLD.id;"+
1155                                 "END;");
1156
1157                         db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
1158                                 "DELETE ON articles "+
1159                                 "BEGIN "+
1160                                 "DELETE FROM article_labels WHERE id = OLD.id; "+
1161                                 "END; ");
1162
1163                 }
1164
1165                 cache_expire();
1166
1167         } catch (e) {
1168                 exception_error("init_gears", e);
1169         }
1170 }
1171
1172 function offlineArticlesStored() {
1173
1174         var rs = db.execute("SELECT COUNT(*) FROM articles");
1175         var count = 0;
1176         if (rs.isValidRow()) {
1177                 count = rs.field(0);
1178         }
1179
1180         rs.close();
1181
1182         return count;
1183 }
1184
1185 function gotoOffline() {
1186
1187 //      debug("[Local store] currentVersion = " + store.currentVersion);
1188
1189
1190         if (offlineArticlesStored() == 0) {
1191                 notify_error("You have to synchronize some articles before going into offline mode.");
1192                 return;
1193         }
1194
1195         if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
1196
1197                 store.enabled = true;
1198                 store.checkForUpdate();
1199
1200                 notify_progress("Preparing offline mode...", true);
1201
1202                 var timerId = window.setInterval(function() {
1203                         if (store.currentVersion) {
1204                                 window.clearInterval(timerId);
1205                                 debug("[Local store] sync complete: " + store.currentVersion);
1206
1207                                 //window.location.href = "tt-rss.php";
1208
1209                                 offlineDownloadStop();
1210                                 init_offline();
1211
1212                                 notify_info("Tiny Tiny RSS is in offline mode.");
1213
1214                         } else if (store.updateStatus == 3) {
1215                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1216                                 notify_error(store.lastErrorMessage, true);
1217                         } }, 500);
1218         }
1219 }
1220
1221 function gotoOnline() {
1222 //      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?"))) {
1223         if (confirm(__("Tiny Tiny RSS will reload. Go online?"))) {
1224                 //localServer.removeManagedStore("tt-rss");
1225                 window.location.href = "tt-rss.php?online=1";
1226         }
1227 }
1228
1229 function local_collapse_cat(id) {
1230         try {
1231                 if (db) {
1232                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
1233                                 [id]);
1234                 }
1235         } catch (e) {
1236                 exception_error("local_collapse_cat", e);
1237         }
1238 }
1239
1240 function get_local_category_title(id) {
1241         try {
1242
1243                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
1244                 var tmp = "";
1245
1246                 if (rs.isValidRow()) {
1247                         tmp = rs.field(0);
1248                 }
1249
1250                 rs.close();
1251
1252                 return tmp;
1253
1254         } catch (e) {
1255                 exception_error("get_local_category_title", e);
1256         }
1257 }
1258
1259 function get_local_category_unread(id) {
1260         try {
1261                 var rs = false;
1262
1263                 if (id >= 0) {
1264                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1265                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1266                 } else if (id == -2) {
1267                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1268                                 "where article_labels.id = articles.id");
1269                 } else {
1270                         return 0;
1271                 }
1272
1273                 var tmp = 0;
1274
1275                 if (rs.isValidRow()) {
1276                         tmp = rs.field(0);
1277                 }
1278
1279                 rs.close();
1280
1281                 return tmp;
1282
1283         } catch (e) {
1284                 exception_error("get_local_category_unread", e);
1285         }
1286 }
1287
1288 function printCategoryHeader(cat_id, hidden, can_browse) {
1289         try {
1290                 if (hidden == undefined) hidden = false;
1291                 if (can_browse == undefined) can_browse = false;
1292
1293                         var tmp_category = get_local_category_title(cat_id);
1294                         var tmp = "";
1295
1296                         var cat_unread = get_local_category_unread(cat_id);
1297
1298                         var holder_style = "";
1299                         var ellipsis = "";
1300
1301                         if (hidden) {
1302                                 holder_style = "display:none;";
1303                                 ellipsis = "…";
1304                         }
1305
1306                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1307
1308                         var browse_cat_link = "";
1309                         var inner_title_class = "catTitleNL";
1310
1311                         if (can_browse) {
1312                                 browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
1313                                 inner_title_class = "catTitle";
1314                         }
1315
1316                         var cat_class = "feedCat";
1317
1318                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1319                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1320                                         " title=\""+__('Click to collapse category')+"\""+
1321                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1322                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1323                                 "\">"+tmp_category+"</span>";
1324
1325                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1326
1327                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1328                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1329
1330                         tmp += "</span>";
1331
1332                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1333                                 "style='"+holder_style+"'>";
1334
1335                         return tmp;
1336         } catch (e) {
1337                 exception_error("printCategoryHeader", e);
1338         }
1339 }
1340
1341 function is_local_cat_collapsed(id) {
1342         try {
1343
1344                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1345                 var cat_hidden = 0;
1346
1347                 if (rs.isValidRow()) {
1348                         cat_hidden = rs.field(0);
1349                 }
1350
1351                 rs.close();
1352
1353                 return cat_hidden == "1";
1354
1355         } catch (e) {
1356                 exception_error("is_local_cat_collapsed", e);
1357         }
1358 }
1359
1360 function get_local_article_labels(id) {
1361         try {
1362                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1363                         "FROM labels, article_labels "+
1364                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1365
1366                 var tmp = new Array();
1367
1368                 while (rs.isValidRow()) {
1369                         var e = new Array();
1370
1371                         e[0] = rs.field(0);
1372                         e[1] = rs.field(1);
1373                         e[2] = rs.field(2);
1374                         e[3] = rs.field(3);
1375
1376                         tmp.push(e);
1377
1378                         rs.next();
1379                 }
1380
1381                 return tmp;
1382
1383         } catch (e) {
1384                 exception_error("get_local_article_labels", e);
1385         }
1386 }
1387
1388 function label_local_add_article(id, label_id) {
1389         try {
1390                 //debug("label_local_add_article " + id + " => " + label_id);
1391
1392                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1393                         "id = ? AND label_id = ?", [id, label_id]);
1394                 var check = rs.field(0);
1395
1396                 if (rs.isValidRow()) {
1397                         var check = rs.field(0);
1398                 }
1399                 rs.close();
1400
1401                 if (check == 0) {
1402                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1403                                 "(?,?)", [id, label_id]);
1404                 }
1405
1406         } catch (e) {
1407                 exception_error("label_local_add_article", e);
1408         }
1409 }
1410
1411 function get_local_feed_title(id) {
1412         try {
1413
1414                 var feed_title = "Unknown feed: " + id;
1415
1416                 if (id > 0) {
1417                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1418
1419                         if (rs.isValidRow()) {
1420                                 feed_title = rs.field(0);
1421                         }
1422
1423                         rs.close();
1424                 } else if (id == -1) {
1425                         feed_title = __("Starred articles");
1426                 } else if (id == -4) {
1427                         feed_title = __("All articles");
1428                 } else if (id < -10) {
1429
1430                         var label_id = -11 - id;
1431
1432                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1433
1434                         if (rs.isValidRow()) {
1435                                 feed_title = rs.field(0);
1436                         }
1437
1438                         rs.close();
1439                 }
1440
1441                 return feed_title;
1442
1443         } catch (e) {
1444                 exception_error("get_local_feed_title", e);
1445         }
1446 }
1447
1448 function format_article_labels(labels, id) {
1449         try {
1450
1451                 var labels_str = "";
1452
1453                 if (!labels) return "";
1454
1455                 for (var i = 0; i < labels.length; i++) {
1456                         var l = labels[i];
1457
1458                         labels_str += "<span class='hlLabelRef' "+
1459                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1460                 }
1461
1462                 return labels_str;
1463
1464         } catch (e) {
1465                 exception_error("format_article_labels", e);
1466         }
1467 }
1468
1469 function init_local_sync_data() {
1470         try {
1471
1472                 if (!db) return;
1473
1474                 var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
1475                 var has_last_online = 0;
1476
1477                 if (rs.isValidRow()) {
1478                         has_last_online = rs.field(0);
1479                 }
1480
1481                 rs.close();
1482
1483                 if (!has_last_online) {
1484                         db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
1485                 }
1486
1487         } catch (e) {
1488                 exception_error("init_local_sync_data", e);
1489
1490         }
1491 }
1492
1493 function has_local_sync_data() {
1494         try {
1495
1496                 var rs = db.execute("SELECT id FROM articles "+
1497                         "WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
1498                         "LIMIT 1");
1499
1500                 var tmp = 0;
1501
1502                 if (rs.isValidRow()) {
1503                         tmp = rs.field(0);
1504                 }
1505
1506                 rs.close();
1507
1508                 return tmp != 0;
1509
1510         } catch (e) {
1511                 exception_error("has_local_sync_data", e);
1512         }
1513 }
1514
1515 function prepare_local_sync_data() {
1516         try {
1517                 var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
1518
1519                 var last_online = "";
1520
1521                 if (rs.isValidRow()) {
1522                         last_online = rs.field(0);
1523                 }
1524
1525                 rs.close();
1526
1527                 var rs = db.execute("SELECT id,unread,marked FROM articles "+
1528                         "WHERE modified > ? LIMIT 200", [last_online]);
1529
1530                 var tmp = last_online + ";";
1531
1532                 var entries = 0;
1533
1534                 while (rs.isValidRow()) {
1535                         var e = new Array();
1536
1537                         tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
1538                         entries++;
1539
1540                         rs.next();
1541                 }
1542
1543                 rs.close();
1544
1545                 if (entries > 0) {
1546                         return tmp;
1547                 } else {
1548                         return '';
1549                 }
1550
1551         } catch (e) {
1552                 exception_error("prepare_local_sync_data", e);
1553         }
1554 }
1555
1556 function update_local_sync_data() {
1557         try {
1558                 if (db && !offline_mode) {
1559
1560                         var rs = db.execute("SELECT id FROM articles "+
1561                                 "WHERE modified > (SELECT value FROM syncdata WHERE "+
1562                                         "key = 'last_online') LIMIT 1")
1563
1564                         var f_id = 0;
1565
1566                         if (rs.isValidRow()) {
1567                                 f_id = rs.field(0);
1568                         }
1569
1570                         rs.close();
1571
1572                         /* no pending articles to sync */
1573
1574                         if (f_id == 0) {
1575                                 db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
1576                                         "WHERE key = 'last_online'");
1577                         }
1578
1579                 }
1580         } catch (e) {
1581                 exception_error("update_local_sync_data", e);
1582         }
1583 }
1584
1585 function catchup_local_feed(id, is_cat) {
1586         try {
1587                 if (!db) return;
1588
1589                 if (!is_cat) {
1590                         if (id >= 0) {
1591                                 db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
1592                         } else if (id == -1) {
1593                                 db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
1594                         } else if (id == -4) {
1595                                 db.execute("UPDATE articles SET unread = 0");
1596                         } else if (id < -10) {
1597                                 var label_id = -11-id;
1598
1599                                 db.execute("UPDATE articles SET unread = 0 WHERE "+
1600                                         "(SELECT COUNT(*) FROM article_labels WHERE "+
1601                                         "article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
1602                         }
1603                 }
1604
1605                 update_local_feedlist_counters();
1606
1607         } catch (e) {
1608                 exception_error("catchup_local_feed", e);
1609         }
1610 }
1611
1612 function toggleOfflineModeInfo() {
1613         try {
1614                 var e = $('offlineModeDrop');
1615                 var p = $('offlineModePic');
1616
1617                 if (Element.visible(e)) {
1618                         Element.hide(e);
1619                 } else {
1620                         Element.show(e);
1621                 }
1622
1623         } catch (e) {
1624                 exception_error("toggleOfflineModeInfo", e);
1625         }
1626 }
1627
1628 function offlineDownloadStart(stage) {
1629         try {
1630                 if (!stage) stage = 0;
1631
1632                 if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
1633                         window.setTimeout("update_offline_data("+stage+")", 100);
1634                 }
1635         } catch (e) {
1636                 exception_error("offlineDownloadStart", e);
1637         }
1638 }
1639
1640 function offlineDownloadStop() {
1641         try {
1642                 if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
1643
1644                         sync_in_progress = false;
1645
1646                         if (sync_timer) {
1647                                 window.clearTimeout(sync_timer);
1648                                 sync_timer = false;
1649                         }
1650
1651                         var pic = $("offlineModePic");
1652
1653                         if (pic) {
1654                                 pic.src = "images/offline.png";
1655                                 var msg = __("Last sync: Cancelled.");
1656                                 articles_synced = 0;
1657                                 $("offlineModeSyncMsg").innerHTML = msg;
1658                         }
1659
1660                         offlineSyncShowHideElems(false);
1661
1662                 }
1663         } catch (e) {
1664                 exception_error("offlineDownloadStart", e);
1665         }
1666 }
1667
1668 function offlineClearData() {
1669         try {
1670                 if (db) {
1671
1672                         if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
1673
1674                                 notify_progress("Removing offline data...");
1675
1676                                 localServer.removeManagedStore("tt-rss");
1677
1678                                 db.execute("DELETE FROM articles");
1679                                 db.execute("DELETE FROM article_labels");
1680                                 db.execute("DELETE FROM labels");
1681                                 db.execute("DELETE FROM feeds");
1682                                 db.execute("DELETE FROM cache");
1683
1684                                 notify_info("Local data removed.");
1685                         }
1686                 }
1687         } catch (e) {
1688                 exception_error("offlineClearData", e);
1689         }
1690 }
1691
1692 function offlineUpdateStore() {
1693         try {
1694                 if (offline_mode || !store) return;
1695
1696                 store.checkForUpdate();
1697
1698                 var timerId = window.setInterval(function() {
1699                         if (store.currentVersion) {
1700                                 window.clearInterval(timerId);
1701                                 debug("[Local store] sync complete: " + store.currentVersion);
1702                         } else if (store.updateStatus == 3) {
1703                                 debug("[Local store] sync error: " + store.lastErrorMessage);
1704                         } }, 500);
1705
1706         } catch (e) {
1707                 exception_error("offlineUpdateStore", e);
1708         }
1709 }
1710
1711 function offlineSyncShowHideElems(syncing) {
1712         try {
1713
1714                 var elems = $$("div.hideWhenSyncing");
1715
1716                 for (var j = 0; j < elems.length; j++) {
1717                         if (syncing) {
1718                                 Element.hide(elems[j]);
1719                         } else {
1720                                 Element.show(elems[j]);
1721                         }
1722                 }
1723
1724                 var elems = $$("div.showWhenSyncing");
1725
1726                 for (var j = 0; j < elems.length; j++) {
1727                         if (syncing) {
1728                                 Element.show(elems[j]);
1729                         } else {
1730                                 Element.hide(elems[j]);
1731                         }
1732                 }
1733
1734         } catch (e) {
1735                 exception_error("offlineSyncShowHideElems", e);
1736         }
1737 }
1738
1739 function offlineConfirmModeChange() {
1740         try {
1741
1742                 if (db && getInitParam("offline_enabled") == "1" && offlineArticlesStored() > 0) {
1743                         var ok = confirm(__("Tiny Tiny RSS has trouble accessing its server. Would you like to go offline?"));
1744
1745                         if (ok) {
1746                                 init_offline();
1747                         }
1748                 }
1749
1750         } catch (e) {
1751                 exception_error("offlineConfirmModeChange", e);
1752         }
1753 }
1754
1755 function printFeedEntry(id, title, row_class, unread, icon) {
1756
1757         var tmp = "";
1758         var fctr_class = "";
1759         var feed_icon = "";
1760
1761         if (unread > 0) {
1762                 row_class += "Unread";
1763                 fctr_class = "feedCtrHasUnread";
1764         } else {
1765                 fctr_class = "feedCtrNoUnread";
1766         }
1767
1768         if (icon) {
1769                 feed_icon = "<img id='FIMG-"+id+"' src='" + icon + "'>";
1770         } else {
1771                 feed_icon = "<img id='FIMG-"+id+"' src='images/blank_icon.gif'>";
1772         }
1773
1774         var link = "<a title=\"FIXME\" id=\"FEEDL-"+id+"\""+
1775                 "href=\"javascript:viewfeed('"+id+"', '', false, '', false, 0);\">"+
1776                 title + "</a>";
1777
1778         tmp += "<li id='FEEDR-"+id+"' class="+row_class+">" + feed_icon +
1779                 "<span id=\"FEEDN-"+id+"\">" + link + "</span>";
1780
1781         tmp += " <span class='"+fctr_class+"' id=\"FEEDCTR-"+id+"\">" +
1782            "(<span id=\"FEEDU-"+id+"\">"+unread+"</span>)</span>";
1783
1784         tmp += "</li>";
1785
1786         return tmp;
1787 }
1788
1789