offline.js

   1 var SCHEMA_VERSION = 9;
   2
   3 var offline_mode = false;
   4 var store = false;
   5 var localServer = false;
   6 var db = false;
   7
   8 function view_offline(id, feed_id) {
   9         try {
  10
  11                 enableHotkeys();
  12                 showArticleInHeadlines(id);
  13
  14                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
  15
  16                 var rs = db.execute("SELECT * FROM articles WHERE id = ?", [id]);
  17
  18                 if (rs.isValidRow()) {
  19
  20                         var tmp = "<div class=\"postReply\">";
  21
  22                         tmp += "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" "+
  23                                 "onmouseout=\"enable_resize(false)\">";
  24
  25                         tmp += "<div class=\"postDate\">"+rs.fieldByName("updated")+"</div>";
  26
  27                         if (rs.fieldByName("link") != "") {
  28                                 tmp += "<div clear='both'><a target=\"_blank\" "+
  29                                         "href=\"" + rs.fieldByName("link") + "\">" +
  30                                         rs.fieldByName("title") + "</a></div>";
  31                         } else {
  32                                 tmp += "<div clear='both'>" + rs.fieldByName("title") + "</div>";
  33                         }
  34
  35 /*                      tmp += "<div style='float : right'> "+
  36                                 "<img src='images/tag.png' class='tagsPic' alt='Tags' title='Tags'>";
  37                         tmp += rs.fieldByName("tags");
  38                         tmp += "</div>"; */
  39
  40 /*                      tmp += "<div clear='both'>"+
  41                                 "<a target=\"_blank\" "+
  42                                         "href=\"" + rs.fieldByName("comments") + "\">" +
  43                                         __("comments") + "</a></div>"; */
  44
  45                         tmp += "</div>";
  46
  47                         tmp += "<div class=\"postContent\">"
  48                         tmp += rs.fieldByName("content");
  49                         tmp += "</div>";
  50
  51                         tmp += "</div>";
  52
  53                         render_article(tmp);
  54                         update_local_feedlist_counters();
  55                 }
  56
  57                 rs.close();
  58
  59                 return false;
  60
  61         } catch (e) {
  62                 exception_error("view_offline", e);
  63         }
  64 }
  65
  66 function viewfeed_offline(feed_id, subop, is_cat, subop_param, skip_history, offset) {
  67         try {
  68                 notify('');
  69
  70                 if (!offset) offset = 0;
  71
  72                 if (offset > 0) {
  73                         _feed_cur_page = parseInt(offset);
  74                         if (_infscroll_request_sent) {
  75                                 return;
  76                         }
  77                 } else {
  78                         _feed_cur_page = 0;
  79                         _infscroll_disable = 0;
  80                 }
  81
  82                 if (getActiveFeedId() != feed_id) {
  83                         _feed_cur_page = 0;
  84                         active_post_id = 0;
  85                         _infscroll_disable = 0;
  86                 }
  87
  88                 loading_set_progress(100);
  89
  90                 clean_feed_selections();
  91
  92                 setActiveFeedId(feed_id, is_cat);
  93
  94                 if (!is_cat) {
  95                         var feedr = document.getElementById("FEEDR-" + feed_id);
  96                         if (feedr && !feedr.className.match("Selected")) {
  97                                 feedr.className = feedr.className + "Selected";
  98                         }
  99                 } else {
 100                         var feedr = document.getElementById("FCAT-" + feed_id);
 101                         if (feedr && !feedr.className.match("Selected")) {
 102                                 feedr.className = feedr.className + "Selected";
 103                         }
 104                 }
 105
 106                 disableContainerChildren("headlinesToolbar", false);
 107                 Form.enable("main_toolbar_form");
 108
 109                 var f = document.getElementById("headlines-frame");
 110                 try {
 111                         if (reply.offset == 0) {
 112                                 debug("resetting headlines scrollTop");
 113                                 f.scrollTop = 0;
 114                         }
 115                 } catch (e) { };
 116
 117
 118                 var tmp = "";
 119
 120                 var feed_title = get_local_feed_title(feed_id);
 121
 122                 if (feed_title) {
 123
 124                         if (offset == 0) {
 125                                 tmp += "<div id=\"headlinesContainer\">";
 126
 127                                 tmp += "<div class=\"headlinesSubToolbar\">";
 128                                 tmp += "<div id=\"subtoolbar_ftitle\">";
 129                                 tmp += feed_title;
 130                                 tmp += "</div>";
 131
 132                                 var sel_all_link;
 133                                 var sel_unread_link;
 134                                 var sel_none_link;
 135                                 var sel_inv_link;
 136
 137                                 if (document.getElementById("content-frame")) {
 138                                         sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
 139                                         sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
 140                                         sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
 141                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 142                                 } else {
 143                                         sel_all_link = "javascript:cdmSelectArticles('all')";
 144                                         sel_unread_link = "javascript:cdmSelectArticles('unread')";
 145                                         sel_none_link = "javascript:cdmSelectArticles('none')";
 146                                         sel_inv_link = "javascript:invertHeadlineSelection()";
 147                                 }
 148
 149                                 tmp += __('Select:')+
 150                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
 151                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
 152                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
 153                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
 154
 155                                 tmp += "&nbsp;&nbsp;";
 156
 157                                 tmp += "</div>";
 158
 159                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
 160                                 if (document.getElementById("content-frame")) {
 161                                         tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
 162                                 }
 163
 164                         }
 165
 166                         var limit = 30;
 167
 168                         var toolbar_form = document.forms["main_toolbar_form"];
 169
 170                         var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
 171                         var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
 172
 173                         var limit_qpart = "";
 174                         var strategy_qpart = "";
 175                         var mode_qpart = "";
 176                         var offset_qpart = "";
 177
 178                         if (limit != 0) {
 179                                 limit_qpart = "LIMIT " + limit;
 180                         }
 181
 182                         if (view_mode == "all_articles") {
 183                                 mode_qpart = "1";
 184                         } else if (view_mode == "adaptive") {
 185                                 if (get_local_feed_unread(feed_id) > 0) {
 186                                         mode_qpart = "unread = 1";
 187                                 } else {
 188                                         mode_qpart = "1";
 189                                 }
 190                         } else if (view_mode == "marked") {
 191                                 mode_qpart = "marked = 1";
 192                         } else if (view_mode == "unread") {
 193                                 mode_qpart = "unread = 1";
 194                         } else {
 195                                 mode_qpart = "1";
 196                         }
 197
 198                         if (feed_id > 0) {
 199                                 strategy_qpart = "feed_id = " + feed_id;
 200                         } else if (feed_id == -1) {
 201                                 strategy_qpart = "marked = 1";
 202                         } else if (feed_id == -4) {
 203                                 strategy_qpart = "1";
 204                         } else if (feed_id < -10) {
 205                                 var label_id = -11 - feed_id;
 206                                 strategy_qpart = "label_id = " + label_id;
 207
 208                         }
 209
 210                         if (offset > 0) {
 211                                 offset_qpart = "OFFSET " + (offset*30);
 212                         } else {
 213                                 offset_qpart = "";
 214                         }
 215
 216                         var query = "SELECT *,feeds.title AS feed_title "+
 217                                 "FROM articles,feeds LEFT JOIN article_labels "+
 218                                         "ON (article_labels.id = articles.id) WHERE " +
 219                                 "feed_id = feeds.id AND " +
 220                                 strategy_qpart +
 221                                 " AND " + mode_qpart +
 222                                 " ORDER BY updated DESC "+
 223                                 limit_qpart + " " +
 224                                 offset_qpart;
 225
 226                         var rs = db.execute(query);
 227
 228                         var line_num = offset*30;
 229
 230                         var real_feed_id = feed_id;
 231
 232                         while (rs.isValidRow()) {
 233
 234                                 var id = rs.fieldByName("id");
 235                                 var feed_id = rs.fieldByName("feed_id");
 236
 237                                 var entry_feed_title = false;
 238
 239                                 if (real_feed_id < 0) {
 240                                         entry_feed_title = rs.fieldByName("feed_title");
 241                                 }
 242
 243                                 var marked_pic;
 244
 245                                 var row_class = (line_num % 2) ? "even" : "odd";
 246
 247                                 if (rs.fieldByName("unread") == "1") {
 248                                         row_class += "Unread";
 249                                 }
 250
 251                                 var labels = get_local_article_labels(id);
 252
 253                                 debug(labels);
 254
 255                                 var labels_str = "<span id=\"HLLCTR-"+id+"\">";
 256                                 labels_str += format_article_labels(labels, id);
 257                                 labels_str += "</span>";
 258
 259                                 if (rs.fieldByName("marked") == "1") {
 260                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 261                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
 262                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
 263                                 } else {
 264                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
 265                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
 266                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
 267                                 }
 268
 269                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
 270                                         "onmouseout='postMouseOut($id)'";
 271
 272                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
 273                                                 100);
 274
 275                                 if (document.getElementById("content-frame")) {
 276
 277                                         tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
 278
 279                                         tmp += "<td class='hlUpdPic'> </td>";
 280
 281                                         tmp += "<td class='hlSelectRow'>"+
 282                                                 "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
 283
 284                                         tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
 285
 286                                         tmp += "<td onclick='view("+id+","+feed_id+")' "+
 287                                                 "class='hlContent' valign='middle'>";
 288
 289                                         tmp += "<a target=\"_blank\" id=\"RTITLE-"+id+"\" href=\"" +
 290                                                 rs.fieldByName("link") + "\"" +
 291                                                 "onclick=\"return view("+id+","+feed_id+");\">"+
 292                                                 rs.fieldByName("title");
 293
 294                                         tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
 295
 296                                         tmp += "</a>";
 297
 298                                         tmp += labels_str;
 299
 300                                         if (entry_feed_title) {
 301                                                 tmp += " <span class=\"hlFeed\">"+
 302                                                         "(<a href='javascript:viewfeed("+feed_id+
 303                                                         ")'>"+entry_feed_title+"</a>)</span>";
 304                                         }
 305
 306                                         tmp += "</td>";
 307
 308                                         tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
 309                                                 "<nobr>"+rs.fieldByName("updated").substring(0,16)+
 310                                                 "</nobr></td>";
 311
 312                                         tmp += "</tr>";
 313                                 } else {
 314
 315                                         var add_class = "";
 316
 317                                         if (rs.fieldByName("unread") == "1") {
 318                                                 add_class = "Unread";
 319                                         }
 320
 321                                         tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
 322                                                 mouseover_attrs+"'>";
 323
 324                                         feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
 325                                                 getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
 326                                         cdm_feed_icon = "<span style=\"cursor : pointer\" "+
 327                                                 "onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
 328
 329                                         tmp += "<div class=\"cdmHeader\">";
 330                                         tmp += "<div class=\"articleUpdated\">"+
 331                                                 rs.fieldByName("updated").substring(0,16)+
 332                                                 " "+cdm_feed_icon+"</div>";
 333
 334                                         tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
 335                                                 "<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
 336                                                 "target=\"_blank\" href=\""+rs.fieldByName("link")+
 337                                                 "\">"+rs.fieldByName("title")+"</a>";
 338
 339                                         tmp += labels_str;
 340
 341                                         if (entry_feed_title) {
 342                                                 tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
 343                                                         ")'>"+entry_feed_title+"</a>)";
 344                                         }
 345
 346                                         tmp += "</span></div>";
 347
 348                                         tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
 349                                                 "id=\"CICD-"+id+"\">";
 350                                         tmp += rs.fieldByName("content");
 351                                         tmp += "<br clear='both'>"
 352                                         tmp += "</div>";
 353
 354                                         tmp += "<div class=\"cdmFooter\"><span class='s0'>";
 355                                         tmp += __("Select:")+
 356                                                 " <input type=\"checkbox\" "+
 357                                                 "onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
 358                                                 "class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
 359
 360                                         tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
 361
 362 /*                                      tmp += "<span class='s1'>"+
 363                                                 "<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
 364                                                 "<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
 365                                                 "</span>"; */
 366
 367                                         tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
 368                                                 "href=\"javascript:toggleUnread("+id+")\">"+
 369                                                 "Unread</a></span>";
 370                                         tmp += "</div>";
 371
 372                                         tmp += "</div>";
 373                                 }
 374
 375                                 rs.next();
 376                                 line_num++;
 377                         }
 378
 379                         if (line_num - offset*30 < 30) {
 380                                 _infscroll_disable = 1;
 381                         }
 382
 383                         rs.close();
 384
 385                         if (offset == 0) {
 386                                 tmp += "</table>";
 387
 388                                 if (line_num - offset*30 == 0) {
 389                                         tmp += "<div class='whiteBox'>" +
 390                                                 __("No articles found to display.") +
 391                                                 "</div>";
 392                                 }
 393                                 tmp += "</div></div>";
 394                         }
 395
 396                         if (offset == 0) {
 397                                 var container = document.getElementById("headlines-frame");
 398                                 container.innerHTML = tmp;
 399                         } else {
 400                                 var ids = getSelectedArticleIds2();
 401
 402                                 var container = document.getElementById("headlinesList");
 403                                 container.innerHTML = container.innerHTML + tmp;
 404
 405                                 for (var i = 0; i < ids.length; i++) {
 406                                         markHeadline(ids[i]);
 407                                 }
 408                         }
 409                 }
 410
 411                 remove_splash();
 412
 413                 _infscroll_request_sent = 0;
 414
 415         } catch (e) {
 416                 exception_error("viewfeed_offline", e);
 417         }
 418 }
 419
 420 function render_offline_feedlist() {
 421         try {
 422                 var cats_enabled = getInitParam("enable_feed_cats") == "1";
 423
 424                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
 425
 426                 var unread = get_local_feed_unread(-4);
 427
 428                 global_unread = unread;
 429                 updateTitle();
 430
 431                 if (cats_enabled) {
 432                         tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
 433                 }
 434
 435                 tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
 436                         "images/tag.png");
 437
 438                 var unread = get_local_feed_unread(-1);
 439
 440                 tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
 441                         "images/mark_set.png");
 442
 443                 if (cats_enabled) {
 444                         tmp += "</ul></li>";
 445                 } else {
 446                         tmp += "<li><hr/></li>";
 447                 }
 448
 449                 if (cats_enabled) {
 450                         tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
 451                 }
 452
 453                 var rs = db.execute("SELECT id,caption "+
 454                         "FROM labels "+
 455                         "ORDER BY caption");
 456
 457                 while (rs.isValidRow()) {
 458                         var id = -11 - parseInt(rs.field(0));
 459                         var caption = rs.field(1);
 460                         var unread = get_local_feed_unread(id);
 461
 462                         tmp += printFeedEntry(id, caption, "feed", unread,
 463                                 "images/label.png");
 464
 465                         rs.next();
 466                 }
 467
 468                 rs.close();
 469
 470                 if (cats_enabled) {
 471                         tmp += "</ul></li>";
 472                 } else {
 473                         tmp += "<li><hr/></li>";
 474                 }
 475
 476 /*              var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
 477                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 478                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 479                         "ORDER BY feeds.title"); */
 480
 481                 var order_by = "feeds.title";
 482
 483                 if (cats_enabled) order_by = "categories.title," + order_by;
 484
 485                 var rs = db.execute("SELECT "+
 486                         "feeds.id,feeds.title,has_icon,cat_id,collapsed "+
 487                         "FROM feeds,categories WHERE cat_id = categories.id "+
 488                         "ORDER BY "+order_by);
 489
 490                 var tmp_cat_id = -1;
 491
 492                 while (rs.isValidRow()) {
 493
 494                         var id = rs.field(0);
 495                         var title = rs.field(1);
 496                         var has_icon = rs.field(2);
 497                         var unread = get_local_feed_unread(id);
 498                         var cat_id = rs.field(3);
 499                         var cat_hidden = rs.field(4);
 500
 501                         if (cat_id != tmp_cat_id && cats_enabled) {
 502                                 if (tmp_cat_id != -1) {
 503                                         tmp += "</ul></li>";
 504                                 }
 505                                 tmp += printCategoryHeader(cat_id, cat_hidden, false);
 506                                 tmp_cat_id = cat_id;
 507                         }
 508
 509                         var icon = "";
 510
 511                         if (has_icon) {
 512                                 icon = "icons/" + id + ".ico";
 513                         }
 514
 515                         var feed_icon = "";
 516
 517                         var row_class = "feed";
 518
 519                         if (unread > 0) {
 520                                 row_class += "Unread";
 521                                 fctr_class = "feedCtrHasUnread";
 522                         } else {
 523                                 fctr_class = "feedCtrNoUnread";
 524                         }
 525
 526                         tmp += printFeedEntry(id, title, "feed", unread, icon);
 527
 528                         rs.next();
 529                 }
 530
 531                 rs.close();
 532
 533                 if (cats_enabled) {
 534                         tmp += "</ul>";
 535                 }
 536
 537                 tmp += "</ul>";
 538
 539                 render_feedlist(tmp);
 540         } catch (e) {
 541                 exception_error("render_offline_feedlist", e);
 542         }
 543 }
 544
 545 function init_offline() {
 546         try {
 547                 offline_mode = true;
 548
 549                 Element.hide("dispSwitchPrompt");
 550                 Element.hide("feedBrowserPrompt");
 551
 552                 Element.hide("topLinksOnline");
 553                 Element.show("topLinksOffline");
 554
 555                 var tb_form = document.getElementById("main_toolbar_form");
 556                 Element.hide(tb_form.update);
 557
 558                 var chooser = document.getElementById("quickMenuChooser");
 559                 chooser.disabled = true;
 560
 561                 var rs = db.execute("SELECT key, value FROM init_params");
 562
 563                 while (rs.isValidRow()) {
 564                         init_params[rs.field(0)] = rs.field(1);
 565                         rs.next();
 566                 }
 567
 568                 rs.close();
 569
 570                 var rs = db.execute("SELECT COUNT(*) FROM feeds");
 571
 572                 var num_feeds = 0;
 573
 574                 if (rs.isValidRow()) {
 575                         num_feeds = rs.field(0);
 576                 }
 577
 578                 rs.close();
 579
 580                 if (num_feeds == 0) {
 581                         remove_splash();
 582                         return fatalError(0,
 583                                 __("Data for offline browsing has not been downloaded yet."));
 584                 }
 585
 586                 render_offline_feedlist();
 587                 init_second_stage();
 588                 window.setTimeout("viewfeed(-4)", 50);
 589
 590         } catch (e) {
 591                 exception_error("init_offline", e);
 592         }
 593 }
 594
 595 function offline_download_parse(stage, transport) {
 596         try {
 597                 if (transport.responseXML) {
 598
 599                         if (stage == 0) {
 600
 601                                 var feeds = transport.responseXML.getElementsByTagName("feed");
 602
 603                                 if (feeds.length > 0) {
 604                                         db.execute("DELETE FROM feeds");
 605                                 }
 606
 607                                 for (var i = 0; i < feeds.length; i++) {
 608                                         var id = feeds[i].getAttribute("id");
 609                                         var has_icon = feeds[i].getAttribute("has_icon");
 610                                         var title = feeds[i].firstChild.nodeValue;
 611                                         var cat_id = feeds[i].getAttribute("cat_id");
 612
 613                                         db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
 614                                                 "VALUES (?,?,?,?)",
 615                                                 [id, title, has_icon, cat_id]);
 616                                 }
 617
 618                                 var cats = transport.responseXML.getElementsByTagName("category");
 619
 620                                 if (feeds.length > 0) {
 621                                         db.execute("DELETE FROM categories");
 622                                 }
 623
 624                                 for (var i = 0; i < cats.length; i++) {
 625                                         var id = cats[i].getAttribute("id");
 626                                         var collapsed = cats[i].getAttribute("collapsed");
 627                                         var title = cats[i].firstChild.nodeValue;
 628
 629                                         db.execute("INSERT INTO categories (id,title,collapsed)"+
 630                                                 "VALUES (?,?,?)",
 631                                                 [id, title, collapsed]);
 632                                 }
 633
 634                                 var labels = transport.responseXML.getElementsByTagName("label");
 635
 636                                 if (labels.length > 0) {
 637                                         db.execute("DELETE FROM labels");
 638                                 }
 639
 640                                 for (var i = 0; i < labels.length; i++) {
 641                                         var id = labels[i].getAttribute("id");
 642                                         var fg_color = labels[i].getAttribute("fg_color");
 643                                         var bg_color = labels[i].getAttribute("bg_color");
 644                                         var caption = labels[i].firstChild.nodeValue;
 645
 646                                         db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
 647                                                 "VALUES (?,?,?,?)",
 648                                                 [id, caption, fg_color, bg_color]);
 649                                 }
 650
 651                                 window.setTimeout("update_offline_data("+(stage+1)+")", 10*1000);
 652                         } else {
 653
 654                                 var articles = transport.responseXML.getElementsByTagName("article");
 655
 656                                 var limit = transport.responseXML.getElementsByTagName("limit")[0];
 657
 658                                 if (limit) {
 659                                         limit = limit.getAttribute("value");
 660                                 } else {
 661                                         limit = 0;
 662                                 }
 663
 664                                 var articles_found = 0;
 665
 666                                 for (var i = 0; i < articles.length; i++) {
 667                                         var a = eval("("+articles[i].firstChild.nodeValue+")");
 668                                         articles_found++;
 669                                         if (a) {
 670
 671                                                 var date = new Date();
 672                                                 var ts = Math.round(date.getTime() / 1000);
 673
 674                                                 db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
 675                                                 db.execute("DELETE FROM article_labels WHERE id = ?", [a.id]);
 676
 677                                                 db.execute("INSERT INTO articles "+
 678                                                 "(id, feed_id, title, link, guid, updated, content, "+
 679                                                         "unread, marked, tags, added, comments) "+
 680                                                 "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
 681                                                         [a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
 682                                                                 a.content, a.unread, a.marked, a.tags, ts,
 683                                                                 a.comments]);
 684
 685                                                 if (a.labels.length > 0) {
 686                                                         for (var j = 0; j < a.labels.length; j++) {
 687                                                                 label_local_add_article(a.id, a.labels[j][0]);
 688                                                         }
 689                                                 }
 690
 691                                         }
 692                                 }
 693
 694                                 debug("downloaded articles: " + articles_found + " limit: " + limit);
 695
 696                                 if (articles_found >= limit) {
 697                                         window.setTimeout("update_offline_data("+(stage+1)+")", 10*1000);
 698                                         debug("update_offline_data: done " + stage);
 699                                 } else {
 700                                         window.setTimeout("update_offline_data(0)", 1800*1000);
 701                                         debug("update_offline_data: finished");
 702
 703                                         var date = new Date();
 704                                         var ts = Math.round(date.getTime() / 1000);
 705
 706                                         db.execute("DELETE FROM articles WHERE added < ? - 2592000", [ts]);
 707
 708                                 }
 709                         }
 710
 711 //                      notify('');
 712
 713                 }
 714         } catch (e) {
 715                 exception_error("offline_download_parse", e);
 716         }
 717 }
 718
 719 function update_offline_data(stage) {
 720         try {
 721
 722                 if (!stage) stage = 0;
 723                 if (offline_mode) return;
 724
 725                 debug("update_offline_data: stage " + stage);
 726
 727 //              notify_progress("Updating offline data... (" + stage +")", true);
 728
 729                 var query = "backend.php?op=rpc&subop=download&stage=" + stage;
 730
 731                 var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
 732
 733                 if (rs.isValidRow() && rs.field(0)) {
 734                         var offline_dl_max_id = rs.field(0);
 735                         var offline_dl_min_id = rs.field(1);
 736
 737                         query = query + "&cidt=" + offline_dl_max_id;
 738                         query = query + "&cidb=" + offline_dl_min_id;
 739                 }
 740
 741                 rs.close();
 742
 743                 new Ajax.Request(query, {
 744                         onComplete: function(transport) {
 745                                 offline_download_parse(stage, transport);
 746                         } });
 747
 748         } catch (e) {
 749                 exception_error("initiate_offline_download", e);
 750         }
 751 }
 752
 753 function set_feedlist_counter(id, ctr, is_cat) {
 754         try {
 755
 756                 var feedctr = document.getElementById("FEEDCTR-" + id);
 757                 var feedu = document.getElementById("FEEDU-" + id);
 758                 var feedr = document.getElementById("FEEDR-" + id);
 759
 760                 if (is_cat) {
 761                         var catctr = document.getElementById("FCATCTR-" + id);
 762                         if (catctr) {
 763                                 catctr.innerHTML = "(" + ctr + ")";
 764                                 if (ctr > 0) {
 765                                         catctr.className = "catCtrHasUnread";
 766                                 } else {
 767                                         catctr.className = "catCtrNoUnread";
 768                                 }
 769                         }
 770                 } else if (feedctr && feedu && feedr) {
 771
 772                         var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 773
 774                         feedu.innerHTML = ctr;
 775
 776                         if (ctr > 0) {
 777                                 feedctr.className = "feedCtrHasUnread";
 778                                 if (!feedr.className.match("Unread")) {
 779                                         var is_selected = feedr.className.match("Selected");
 780
 781                                         feedr.className = feedr.className.replace("Selected", "");
 782                                         feedr.className = feedr.className.replace("Unread", "");
 783
 784                                         feedr.className = feedr.className + "Unread";
 785
 786                                         if (is_selected) {
 787                                                 feedr.className = feedr.className + "Selected";
 788                                         }
 789
 790                                 }
 791
 792                                 if (row_needs_hl) {
 793                                         new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 794                                                 queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 795                                 }
 796                         } else {
 797                                 feedctr.className = "feedCtrNoUnread";
 798                                 feedr.className = feedr.className.replace("Unread", "");
 799                         }
 800                 }
 801
 802         } catch (e) {
 803                 exception_error("set_feedlist_counter", e);
 804         }
 805 }
 806
 807 function update_local_feedlist_counters() {
 808         try {
 809                 if (!offline_mode) return;
 810
 811 /*              var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
 812                         "FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
 813                         "WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
 814                         "ORDER BY feeds.title"); */
 815
 816                 var rs = db.execute("SELECT id FROM feeds "+
 817                         "ORDER BY title");
 818
 819                 while (rs.isValidRow()) {
 820                         var id = rs.field(0);
 821                         var ctr = get_local_feed_unread(id);
 822                         set_feedlist_counter(id, ctr, false);
 823                         rs.next();
 824                 }
 825
 826                 rs.close();
 827
 828                 var rs = db.execute("SELECT cat_id,SUM(unread) "+
 829                         "FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
 830
 831                 while (rs.isValidRow()) {
 832                         var id = rs.field(0);
 833                         var ctr = rs.field(1);
 834                         set_feedlist_counter(id, ctr, true);
 835                         rs.next();
 836                 }
 837
 838                 rs.close();
 839
 840                 set_feedlist_counter(-2, get_local_category_unread(-2), true);
 841
 842                 set_feedlist_counter(-4, get_local_feed_unread(-4));
 843                 set_feedlist_counter(-1, get_local_feed_unread(-1));
 844
 845                 var rs = db.execute("SELECT id FROM labels");
 846
 847                 while (rs.isValidRow()) {
 848                         var id = -11 - rs.field(0);
 849                         var ctr = get_local_feed_unread(id);
 850                         set_feedlist_counter(id, ctr, false);
 851                         rs.next();
 852                 }
 853
 854                 rs.close();
 855
 856                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 857
 858                 global_unread = get_local_feed_unread(-4);
 859                 updateTitle();
 860
 861         } catch (e) {
 862                 exception_error("update_local_feedlist_counters", e);
 863         }
 864 }
 865
 866 function get_local_feed_unread(id) {
 867         try {
 868                 var rs;
 869
 870                 if (id == -4) {
 871                         rs = db.execute("SELECT SUM(unread) FROM articles");
 872                 } else if (id == -1) {
 873                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
 874                 } else if (id > 0) {
 875                         rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
 876                 } else if (id < -10) {
 877                         var label_id = -11 - id;
 878                         rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
 879                                 "WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
 880                 }
 881
 882                 var a = false;
 883
 884                 if (rs.isValidRow()) {
 885                         a = rs.field(0);
 886                 } else {
 887                         a = 0;
 888                 }
 889
 890                 rs.close();
 891
 892                 return a;
 893
 894         } catch (e) {
 895                 exception_error("get_local_feed_unread", e);
 896         }
 897 }
 898
 899 function init_gears() {
 900         try {
 901
 902                 if (window.google && google.gears) {
 903                         localServer = google.gears.factory.create("beta.localserver");
 904                         store = localServer.createManagedStore("tt-rss");
 905                         db = google.gears.factory.create('beta.database');
 906                         db.open('tt-rss');
 907
 908                         db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
 909
 910                         var rs = db.execute("SELECT schema_version FROM version");
 911
 912                         var version = "";
 913
 914                         if (rs.isValidRow()) {
 915                                 version = rs.field(0);
 916                         }
 917
 918                         rs.close();
 919
 920                         if (version != SCHEMA_VERSION) {
 921                                 db.execute("DROP TABLE IF EXISTS init_params");
 922                                 db.execute("DROP TABLE IF EXISTS cache");
 923                                 db.execute("DROP TABLE IF EXISTS feeds");
 924                                 db.execute("DROP TABLE IF EXISTS categories");
 925                                 db.execute("DROP TABLE IF EXISTS labels");
 926                                 db.execute("DROP TABLE IF EXISTS article_labels");
 927                                 db.execute("DROP TABLE IF EXISTS articles");
 928                                 db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
 929                                 db.execute("DROP INDEX IF EXISTS articles_unread_idx");
 930                                 db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
 931                                 db.execute("DROP TABLE IF EXISTS version");
 932                                 db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
 933                                 db.execute("INSERT INTO version (schema_version) VALUES (?)",
 934                                         [SCHEMA_VERSION]);
 935                         }
 936
 937                         db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
 938
 939                         db.execute("CREATE TABLE IF NOT EXISTS cache (id text, article text, param text, added text)");
 940                         db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
 941                         db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
 942                         db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
 943                         db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
 944                         db.execute("CREATE TABLE IF NOT EXISTS articles (id integer, feed_id integer, title text, link text, guid text, updated text, content text, tags text, unread text, marked text, added text, comments text)");
 945
 946                         db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
 947                         db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
 948                         db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
 949
 950                         db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
 951
 952                         Element.show("restartOfflinePic");
 953
 954                 }
 955
 956                 cache_expire();
 957
 958         } catch (e) {
 959                 exception_error("init_gears", e);
 960         }
 961 }
 962
 963 function gotoOffline() {
 964         window.location.href = "tt-rss.php?offline=1";
 965 }
 966
 967 function gotoOnline() {
 968         window.location.href = "tt-rss.php";
 969 }
 970
 971 function local_collapse_cat(id) {
 972         try {
 973                 if (db) {
 974                         db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
 975                                 [id]);
 976                 }
 977         } catch (e) {
 978                 exception_error("local_collapse_cat", e);
 979         }
 980 }
 981
 982 function get_local_category_title(id) {
 983         try {
 984                 var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
 985                 var tmp = "";
 986
 987                 if (rs.isValidRow()) {
 988                         tmp = rs.field(0);
 989                 }
 990
 991                 rs.close();
 992
 993                 return tmp;
 994
 995         } catch (e) {
 996                 exception_error("get_local_category_title", e);
 997         }
 998 }
 999
1000 function get_local_category_unread(id) {
1001         try {
1002                 var rs = false;
1003
1004                 if (id >= 0) {
1005                         rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
1006                                 "WHERE feeds.id = feed_id AND cat_id = ?", [id]);
1007                 } else if (id == -2) {
1008                         rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
1009                                 "where article_labels.id = articles.id");
1010                 } else {
1011                         return 0;
1012                 }
1013
1014                 var tmp = 0;
1015
1016                 if (rs.isValidRow()) {
1017                         tmp = rs.field(0);
1018                 }
1019
1020                 rs.close();
1021
1022                 return tmp;
1023
1024         } catch (e) {
1025                 exception_error("get_local_category_unread", e);
1026         }
1027 }
1028
1029 function printCategoryHeader(cat_id, hidden, can_browse) {
1030         try {
1031                 if (hidden == undefined) hidden = false;
1032                 if (can_browse == undefined) can_browse = false;
1033
1034                         var tmp_category = get_local_category_title(cat_id);
1035                         var tmp = "";
1036
1037                         var cat_unread = get_local_category_unread(cat_id);
1038
1039                         var holder_style = "";
1040                         var ellipsis = "";
1041
1042                         if (hidden) {
1043                                 holder_style = "display:none;";
1044                                 ellipsis = "…";
1045                         }
1046
1047                         var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
1048
1049                         var browse_cat_link = "";
1050                         var inner_title_class = "catTitleNL";
1051
1052                         if (can_browse) {
1053                                 browse_cat_link = "onclick=\"javascript:viewCategory($cat_id)\"";
1054                                 inner_title_class = "catTitle";
1055                         }
1056
1057                         var cat_class = "feedCat";
1058
1059                         tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
1060                                 "<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
1061                                         " title=\""+__('Click to collapse category')+"\""+
1062                                         " src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
1063                                         " id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
1064                                 "\">"+tmp_category+"</span>";
1065
1066                         tmp += "<span id=\"FCAP-"+cat_id+"\">";
1067
1068                         tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
1069                                 "class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
1070
1071                         tmp += "</span>";
1072
1073                         tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
1074                                 "style='"+holder_style+"'>";
1075
1076                         return tmp;
1077         } catch (e) {
1078                 exception_error("printCategoryHeader", e);
1079         }
1080 }
1081
1082 function is_local_cat_collapsed(id) {
1083         try {
1084
1085                 var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
1086                 var cat_hidden = 0;
1087
1088                 if (rs.isValidRow()) {
1089                         cat_hidden = rs.field(0);
1090                 }
1091
1092                 rs.close();
1093
1094                 return cat_hidden == "1";
1095
1096         } catch (e) {
1097                 exception_error("is_local_cat_collapsed", e);
1098         }
1099 }
1100
1101 function get_local_article_labels(id) {
1102         try {
1103                 var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
1104                         "FROM labels, article_labels "+
1105                         "WHERE labels.id = label_id AND article_labels.id = ?", [id]);
1106
1107                 var tmp = new Array();
1108
1109                 while (rs.isValidRow()) {
1110                         var e = new Array();
1111
1112                         e[0] = rs.field(0);
1113                         e[1] = rs.field(1);
1114                         e[2] = rs.field(2);
1115                         e[3] = rs.field(3);
1116
1117                         tmp.push(e);
1118
1119                         rs.next();
1120                 }
1121
1122                 return tmp;
1123
1124         } catch (e) {
1125                 exception_error("get_local_article_labels", e);
1126         }
1127 }
1128
1129 function label_local_add_article(id, label_id) {
1130         try {
1131                 debug("label_local_add_article " + id + " => " + label_id);
1132
1133                 var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
1134                         "id = ? AND label_id = ?", [id, label_id]);
1135                 var check = rs.field(0);
1136
1137                 if (rs.isValidRow()) {
1138                         var check = rs.field(0);
1139                 }
1140                 rs.close();
1141
1142                 if (check == 0) {
1143                         db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
1144                                 "(?,?)", [id, label_id]);
1145                 }
1146
1147         } catch (e) {
1148                 exception_error("label_local_add_article", e);
1149         }
1150 }
1151
1152 function get_local_feed_title(id) {
1153         try {
1154
1155                 var feed_title = "Unknown feed: " + id;
1156
1157                 if (id > 0) {
1158                         var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
1159
1160                         if (rs.isValidRow()) {
1161                                 feed_title = rs.field(0);
1162                         }
1163
1164                         rs.close();
1165                 } else if (id == -1) {
1166                         feed_title = __("Starred articles");
1167                 } else if (id == -4) {
1168                         feed_title = __("All articles");
1169                 } else if (id < -10) {
1170
1171                         var label_id = -11 - id;
1172
1173                         var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
1174
1175                         if (rs.isValidRow()) {
1176                                 feed_title = rs.field(0);
1177                         }
1178
1179                         rs.close();
1180                 }
1181
1182                 return feed_title;
1183
1184         } catch (e) {
1185                 exception_error("get_local_feed_title", e);
1186         }
1187 }
1188
1189 function format_article_labels(labels, id) {
1190         try {
1191
1192                 var labels_str = "";
1193
1194                 if (!labels) return "";
1195
1196                 for (var i = 0; i < labels.length; i++) {
1197                         var l = labels[i];
1198
1199                         labels_str += "<span class='hlLabelRef' "+
1200                                 "style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
1201                 }
1202
1203                 return labels_str;
1204
1205         } catch (e) {
1206                 exception_error("format_article_labels", e);
1207         }
1208 }
1209