digest.js

   1 var last_feeds = [];
   2 var init_params = {};
   3
   4 var _active_feed_id = false;
   5 var _update_timeout = false;
   6 var _view_update_timeout = false;
   7 var _feedlist_expanded = false;
   8 var _update_seq = 1;
   9
  10 function article_appear(article_id) {
  11         try {
  12                 new Effect.Appear('A-' + article_id);
  13         } catch (e) {
  14                 exception_error("article_appear", e);
  15         }
  16 }
  17
  18 function catchup_feed(feed_id, callback) {
  19         try {
  20
  21                 var fn = find_feed(last_feeds, feed_id).title;
  22
  23                 if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
  24
  25                         var is_cat = "";
  26
  27                         if (feed_id < 0) is_cat = "true"; // KLUDGE
  28
  29                         var query = "?op=rpc&subop=catchupFeed&feed_id=" +
  30                                 feed_id + "&is_cat=" + is_cat;
  31
  32                         new Ajax.Request("backend.php", {
  33                                 parameters: query,
  34                                 onComplete: function(transport) {
  35                                         if (callback) callback(transport);
  36
  37                                         update();
  38                                 } });
  39                 }
  40
  41         } catch (e) {
  42                 exception_error("catchup_article", e);
  43         }
  44 }
  45
  46 function get_visible_article_ids() {
  47         try {
  48                 var elems = $("headlines-content").getElementsByTagName("LI");
  49                 var ids = [];
  50
  51                 for (var i = 0; i < elems.length; i++) {
  52                         if (elems[i].id && elems[i].id.match("A-")) {
  53                         ids.push(elems[i].id.replace("A-", ""));
  54                         }
  55                 }
  56
  57                 return ids;
  58
  59         } catch (e) {
  60                 exception_error("get_visible_article_ids", e);
  61         }
  62 }
  63
  64 function catchup_visible_articles(callback) {
  65         try {
  66
  67                 var ids = get_visible_article_ids();
  68
  69                 if (confirm(__("Mark %d displayed articles as read?").replace("%d", ids.length))) {
  70
  71                         var query = "?op=rpc&subop=catchupSelected" +
  72                                 "&cmode=0&ids=" + param_escape(ids);
  73
  74                         new Ajax.Request("backend.php", {
  75                                 parameters: query,
  76                                 onComplete: function(transport) {
  77                                         if (callback) callback(transport);
  78
  79                                         viewfeed(_active_feed_id, 0);
  80                                 } });
  81
  82                         }
  83
  84         } catch (e) {
  85                 exception_error("catchup_visible_articles", e);
  86         }
  87 }
  88
  89 function catchup_article(article_id, callback) {
  90         try {
  91                 var query = "?op=rpc&subop=catchupSelected" +
  92                         "&cmode=0&ids=" + article_id;
  93
  94                 new Ajax.Request("backend.php", {
  95                         parameters: query,
  96                         onComplete: function(transport) {
  97                                 if (callback) callback(transport);
  98                         } });
  99
 100         } catch (e) {
 101                 exception_error("catchup_article", e);
 102         }
 103 }
 104
 105 function set_selected_article(article_id) {
 106         try {
 107                 $$("#headlines-content > li[id*=A-]").each(function(article) {
 108                                 var id = article.id.replace("A-", "");
 109
 110                                 var cb = article.getElementsByTagName("INPUT")[0];
 111
 112                                 if (id == article_id) {
 113                                         article.addClassName("selected");
 114                                         cb.checked = true;
 115                                 } else {
 116                                         article.removeClassName("selected");
 117                                         cb.checked = false;
 118                                 }
 119
 120                 });
 121
 122         } catch (e) {
 123                 exception_error("mark_selected_feed", e);
 124         }
 125 }
 126
 127
 128 function set_selected_feed(feed_id) {
 129         try {
 130                 var feeds = $("feeds-content").getElementsByTagName("LI");
 131
 132                 for (var i = 0; i < feeds.length; i++) {
 133                         if (feeds[i].id == "F-" + feed_id)
 134                                 feeds[i].className = "selected";
 135                         else
 136                                 feeds[i].className = "";
 137                 }
 138
 139                 _active_feed_id = feed_id;
 140
 141         } catch (e) {
 142                 exception_error("mark_selected_feed", e);
 143         }
 144 }
 145
 146 function load_more() {
 147         try {
 148                 var pr = $("H-LOADING-IMG");
 149
 150                 if (pr) Element.show(pr);
 151
 152                 var offset = $$("#headlines-content > li[id*=A-][class*=fresh],li[id*=A-][class*=unread]").length;
 153
 154                 viewfeed(false, offset, false, false, true,
 155                         function() {
 156                                 var pr = $("H-LOADING-IMG");
 157
 158                                 if (pr) Element.hide(pr);
 159                         });
 160         } catch (e) {
 161                 exception_error("load_more", e);
 162         }
 163 }
 164
 165 function update(callback) {
 166         try {
 167                 console.log('updating feeds...');
 168
 169                 window.clearTimeout(_update_timeout);
 170
 171                 new Ajax.Request("backend.php", {
 172                         parameters: "?op=rpc&subop=digest-init",
 173                         onComplete: function(transport) {
 174                                 fatal_error_check(transport);
 175                                 parse_feeds(transport);
 176                                 set_selected_feed(_active_feed_id);
 177
 178                                 if (callback) callback(transport);
 179                                 } });
 180
 181                 _update_timeout = window.setTimeout('update()', 5*1000);
 182         } catch (e) {
 183                 exception_error("update", e);
 184         }
 185 }
 186
 187 function remove_headline_entry(article_id) {
 188         try {
 189                 var elem = $('A-' + article_id);
 190
 191                 if (elem) {
 192                         elem.parentNode.removeChild(elem);
 193                 }
 194
 195         } catch (e) {
 196                 exception_error("remove_headline_entry", e);
 197         }
 198 }
 199
 200 function view_update() {
 201         try {
 202                 viewfeed(_active_feed_id, _active_feed_offset, false, true, true);
 203                 update();
 204         } catch (e) {
 205                 exception_error("view_update", e);
 206         }
 207 }
 208
 209 function view(article_id) {
 210         try {
 211                 $("content").addClassName("move");
 212
 213                 var a = $("A-" + article_id);
 214                 var h = $("headlines");
 215
 216                 setTimeout(function() {
 217                         // below or above viewport, reposition headline
 218                         if (a.offsetTop > h.scrollTop + h.offsetHeight || a.offsetTop+a.offsetHeight < h.scrollTop+a.offsetHeight)
 219                                 h.scrollTop = a.offsetTop - (h.offsetHeight/2 - a.offsetHeight/2);
 220                         }, 500);
 221
 222                 new Ajax.Request("backend.php", {
 223                         parameters: "?op=rpc&subop=digest-get-contents&article_id=" +
 224                                 article_id,
 225                         onComplete: function(transport) {
 226                                 fatal_error_check(transport);
 227
 228                                 var reply = JSON.parse(transport.responseText);
 229
 230                                 if (reply) {
 231                                         var article = reply['article'];
 232
 233                                         var mark_part = "";
 234                                         var publ_part = "";
 235
 236                                         var tags_part = "";
 237
 238                                         if (article.tags.length > 0) {
 239                                                 tags_part = " " + __("in") + " ";
 240
 241                                                 for (var i = 0; i < Math.min(5, article.tags.length); i++) {
 242                                                         //tags_part += "<a href=\"#\" onclick=\"viewfeed('" +
 243                                                         //              article.tags[i] + "')\">" +
 244                                                         //      article.tags[i] + "</a>, ";
 245
 246                                                         tags_part += article.tags[i] + ", ";
 247                                                 }
 248
 249                                                 tags_part = tags_part.replace(/, $/, "");
 250                                                 tags_part = "<span class=\"tags\">" + tags_part + "</span>";
 251
 252                                         }
 253
 254                                         if (article.marked)
 255                                                 mark_part = "<img title='"+ __("Unstar article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_set.png'>";
 256                                         else
 257                                                 mark_part =     "<img title='"+__("Star article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_unset.png'>";
 258
 259                                         if (article.published)
 260                                                 publ_part = "<img title='"+__("Unpublish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_set.png'>";
 261                                         else
 262                                                 publ_part =     "<img title='"+__("Publish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_unset.png'>";
 263
 264                                         var tmp = "<div id=\"toolbar\">" +
 265                                                 "<a target=\"_blank\" href=\""+article.url+"\">" + __("Original article") + "</a>" +
 266                                                 "<div style=\"float : right\"><a href=\"#\" onclick=\"close_article()\">" +
 267                                                 __("Close this panel") + "</a></div></div>" +
 268                                                 "<div id=\"inner\">" +
 269                                                 "<div id=\"ops\">" +
 270                                                 mark_part +
 271                                                 publ_part +
 272                                                 "</div>" +
 273                                                 "<h1>" + article.title + "</h1>" +
 274                                                 "<div id=\"tags\">" +
 275                                                 tags_part +
 276                                                 "</div>" +
 277                                                 article.content + "</div>";
 278
 279                                         $("article-content").innerHTML = tmp;
 280                                         $("article").addClassName("visible");
 281
 282                                         set_selected_article(article.id);
 283
 284                                         catchup_article(article_id,
 285                                                 function() {
 286                                                         $("A-" + article_id).addClassName("read");
 287                                         });
 288
 289                                 } else {
 290                                         elem.innerHTML = __("Error: unable to load article.");
 291                                 }
 292                         }
 293                 });
 294
 295
 296                 return false;
 297         } catch (e) {
 298                 exception_error("view", e);
 299         }
 300 }
 301
 302 function close_article() {
 303         $("content").removeClassName("move");
 304         $("article").removeClassName("visible");
 305 }
 306
 307 function viewfeed(feed_id, offset, replace, no_effects, no_indicator, callback) {
 308         try {
 309
 310                 if (!feed_id) feed_id = _active_feed_id;
 311                 if (offset == undefined) offset = 0;
 312                 if (replace == undefined) replace = (offset == 0);
 313
 314                 _update_seq = _update_seq + 1;
 315
 316                 if (!offset) $("headlines").scrollTop = 0;
 317
 318                 var query = "backend.php?op=rpc&subop=digest-update&feed_id=" +
 319                                 param_escape(feed_id) + "&offset=" + offset +
 320                                 "&seq=" + _update_seq;
 321
 322                 console.log(query);
 323
 324                 var img = false;
 325
 326                 if ($("F-" + feed_id)) {
 327                         img = $("F-" + feed_id).getElementsByTagName("IMG")[0];
 328
 329                         if (img && !no_indicator) {
 330                                 img.setAttribute("orig_src", img.src);
 331                                 img.src = 'images/indicator_tiny.gif';
 332                         }
 333                 }
 334
 335                 new Ajax.Request("backend.php", {
 336                         parameters: query,
 337                         onComplete: function(transport) {
 338                                 Element.hide("overlay");
 339
 340                                 fatal_error_check(transport);
 341                                 parse_headlines(transport, replace, no_effects);
 342                                 set_selected_feed(feed_id);
 343                                 _active_feed_offset = offset;
 344
 345                                 if (img && !no_indicator)
 346                                         img.src = img.getAttribute("orig_src");
 347
 348                                 if (callback) callback(transport);
 349
 350                         } });
 351
 352         } catch (e) {
 353                 exception_error("view", e);
 354         }
 355 }
 356
 357 function find_article(articles, article_id) {
 358         try {
 359                 for (var i = 0; i < articles.length; i++) {
 360                         if (articles[i].id == article_id)
 361                                 return articles[i];
 362                 }
 363
 364                 return false;
 365
 366         } catch (e) {
 367                 exception_error("find_article", e);
 368         }
 369 }
 370
 371 function find_feed(feeds, feed_id) {
 372         try {
 373                 for (var i = 0; i < feeds.length; i++) {
 374                         if (feeds[i].id == feed_id)
 375                                 return feeds[i];
 376                 }
 377
 378                 return false;
 379
 380         } catch (e) {
 381                 exception_error("find_feed", e);
 382         }
 383 }
 384
 385 function get_feed_icon(feed) {
 386         try {
 387                 if (feed.has_icon)
 388                         return getInitParam('icons_url') + "/" + feed.id + '.ico';
 389
 390                 if (feed.id == -1)
 391                         return 'images/mark_set.png';
 392
 393                 if (feed.id == -2)
 394                         return 'images/pub_set.png';
 395
 396                 if (feed.id == -3)
 397                         return 'images/fresh.png';
 398
 399                 if (feed.id == -4)
 400                         return 'images/tag.png';
 401
 402                 if (feed.id < -10)
 403                         return 'images/label.png';
 404
 405                 return 'images/blank_icon.gif';
 406
 407         } catch (e) {
 408                 exception_error("get_feed_icon", e);
 409         }
 410 }
 411
 412 function add_feed_entry(feed) {
 413         try {
 414                 var icon_part = "";
 415
 416                 icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
 417
 418                 var tmp_html = "<li id=\"F-"+feed.id+"\" onclick=\"viewfeed("+feed.id+")\">" +
 419                         icon_part + feed.title +
 420                         "<div class='unread-ctr'>" + "<span class=\"unread\">" + feed.unread + "</span>" +
 421                         "</div>" + "</li>";
 422
 423                 $("feeds-content").innerHTML += tmp_html;
 424
 425
 426         } catch (e) {
 427                 exception_error("add_feed_entry", e);
 428         }
 429 }
 430
 431 function add_headline_entry(article, feed, no_effects) {
 432         try {
 433
 434                 var icon_part = "";
 435
 436                 icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
 437
 438
 439                 var style = "";
 440
 441                 //if (!no_effects) style = "style=\"display : none\"";
 442
 443                 if (article.excerpt.trim() == "")
 444                         article.excerpt = __("Click to expand article.");
 445
 446                 var li_class = "unread";
 447
 448                 var fresh_max = getInitParam("fresh_article_max_age") * 60 * 60;
 449                 var d = new Date();
 450
 451                 if (d.getTime() / 1000 - article.updated < fresh_max)
 452                         li_class = "fresh";
 453
 454                 //"<img title='" + __("Share on Twitter") + "' onclick=\"tweet_article("+article.id+", true)\" src='images/art-tweet.png'>" +
 455
 456                 //"<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
 457
 458                 var checkbox_part = "<input type=\"checkbox\" class=\"cb\" onclick=\"toggle_select_article(this)\"/>";
 459
 460                 var date = new Date(article.updated * 1000);
 461
 462                 var date_part = date.toString().substring(0,21);
 463
 464                 var tmp_html = "<li id=\"A-"+article.id+"\" "+style+" class=\""+li_class+"\">" +
 465                         checkbox_part +
 466                         icon_part +
 467                         "<a target=\"_blank\" href=\""+article.link+"\""+
 468                                 "onclick=\"return view("+article.id+")\" class='title'>" +
 469                                 article.title + "</a>" +
 470                         "<div class='body'>" +
 471                         "<div onclick=\"view("+article.id+")\" class='excerpt'>" +
 472                                 article.excerpt + "</div>" +
 473                         "<div class='info'>";
 474
 475 /*              tmp_html += "<a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
 476                                         feed.title + "</a> " + " @ "; */
 477
 478                 tmp_html += date_part + "</div>" +
 479                         "</div></li>";
 480
 481                 $("headlines-content").innerHTML += tmp_html;
 482
 483                 if (!no_effects)
 484                         window.setTimeout('article_appear(' + article.id + ')', 100);
 485
 486         } catch (e) {
 487                 exception_error("add_headline_entry", e);
 488         }
 489 }
 490
 491 function expand_feeds() {
 492         try {
 493                 _feedlist_expanded = true;
 494
 495                 redraw_feedlist(last_feeds);
 496
 497         } catch (e) {
 498                 exception_error("expand_feeds", e);
 499         }
 500 }
 501
 502 function redraw_feedlist(feeds) {
 503         try {
 504
 505                 $('feeds-content').innerHTML = "";
 506
 507                 var limit = 10;
 508
 509                 if (_feedlist_expanded) limit = feeds.length;
 510
 511                 for (var i = 0; i < Math.min(limit, feeds.length); i++) {
 512                         add_feed_entry(feeds[i]);
 513                 }
 514
 515                 if (feeds.length > limit) {
 516                         $('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
 517                                 "<img src='images/blank_icon.gif'>" +
 518                                 "<a href=\"#\" onclick=\"expand_feeds()\">" +
 519                                 __("%d more...").replace("%d", feeds.length-10) +
 520                                 "</a>" + "</li>";
 521                 }
 522
 523                 if (feeds.length == 0) {
 524                         $('feeds-content').innerHTML =
 525                                 "<div class='insensitive' style='text-align : center'>" +
 526                                         __("No unread feeds.") + "</div>";
 527                 }
 528
 529                 if (_active_feed_id)
 530                         set_selected_feed(_active_feed_id);
 531
 532         } catch (e) {
 533                 exception_error("redraw_feedlist", e);
 534         }
 535 }
 536
 537 function parse_feeds(transport) {
 538         try {
 539                 var reply = JSON.parse(transport.responseText);
 540
 541                 if (!reply) return;
 542
 543                 var feeds = reply['feeds'];
 544
 545                 if (feeds) {
 546
 547                         feeds.sort( function (a,b)
 548                                 {
 549                                         if (b.unread != a.unread)
 550                                                 return (b.unread - a.unread);
 551                                         else
 552                                                 if (a.title > b.title)
 553                                                         return 1;
 554                                                 else if (a.title < b.title)
 555                                                         return -1;
 556                                                 else
 557                                                         return 0;
 558                                 });
 559
 560                         var all_articles = find_feed(feeds, -4);
 561
 562                         update_title(all_articles.unread);
 563
 564                         last_feeds = feeds;
 565
 566                         redraw_feedlist(feeds);
 567                 }
 568
 569         } catch (e) {
 570                 exception_error("parse_feeds", e);
 571         }
 572 }
 573
 574 function parse_headlines(transport, replace, no_effects) {
 575         try {
 576                 var reply = JSON.parse(transport.responseText);
 577                 if (!reply) return;
 578
 579                 var seq = reply['seq'];
 580
 581                 if (seq) {
 582                         if (seq != _update_seq) {
 583                                 console.log("parse_headlines: wrong sequence received.");
 584                                 return;
 585                         }
 586                 } else {
 587                         return;
 588                 }
 589
 590                 var headlines = reply['headlines']['content'];
 591                 var headlines_title = reply['headlines']['title'];
 592
 593                 if (headlines && headlines_title) {
 594
 595                         if (replace) {
 596                                 $('headlines-content').innerHTML = '';
 597                         }
 598
 599                         var pr = $('H-MORE-PROMPT');
 600
 601                         if (pr) pr.parentNode.removeChild(pr);
 602
 603                         var inserted = false;
 604
 605                         for (var i = 0; i < headlines.length; i++) {
 606
 607                                 if (!$('A-' + headlines[i].id)) {
 608                                         add_headline_entry(headlines[i],
 609                                                         find_feed(last_feeds, headlines[i].feed_id), !no_effects);
 610
 611                                 }
 612                         }
 613
 614                         console.log(inserted.id);
 615
 616                         var ids = get_visible_article_ids();
 617
 618                         if (ids.length > 0) {
 619                                 if (pr) {
 620                                         $('headlines-content').appendChild(pr);
 621
 622                                 } else {
 623                                         $('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
 624                                                 "<div class='body'>" +
 625                                                 "<a href=\"#\" onclick=\"catchup_visible_articles()\">" +
 626                                                 __("Mark as read") + "</a> | " +
 627                                                 "<a href=\"javascript:load_more()\">" +
 628                                                 __("Load more...") + "</a>" +
 629                                                 "<img style=\"display : none\" "+
 630                                                 "id=\"H-LOADING-IMG\" src='images/indicator_tiny.gif'>" +
 631                                                 "</div></li>";
 632                                 }
 633                         } else {
 634                                 // FIXME : display some kind of "nothing to see here" prompt here
 635                         }
 636
 637 //                      if (replace && !no_effects)
 638 //                              new Effect.Appear('headlines-content', {duration : 0.3});
 639
 640                         //new Effect.Appear('headlines-content');
 641                 }
 642
 643         } catch (e) {
 644                 exception_error("parse_headlines", e);
 645         }
 646 }
 647
 648 function init_second_stage() {
 649         try {
 650                 new Ajax.Request("backend.php", {
 651                         parameters: "backend.php?op=rpc&subop=digest-init",
 652                         onComplete: function(transport) {
 653                                 parse_feeds(transport);
 654                                 Element.hide("overlay");
 655
 656                                 window.setTimeout('viewfeed(-4)', 100);
 657                                 _update_timeout = window.setTimeout('update()', 5*1000);
 658                                 } });
 659
 660         } catch (e) {
 661                 exception_error("init_second_stage", e);
 662         }
 663 }
 664
 665 function init() {
 666         try {
 667                 dojo.require("dijit.Dialog");
 668
 669                 new Ajax.Request("backend.php", {
 670                         parameters: "?op=rpc&subop=sanityCheck",
 671                         onComplete: function(transport) {
 672                                 backend_sanity_check_callback(transport);
 673                         } });
 674
 675         } catch (e) {
 676                 exception_error("digest_init", e);
 677         }
 678 }
 679
 680 function toggle_mark(img, id) {
 681
 682         try {
 683
 684                 var query = "?op=rpc&id=" + id + "&subop=mark";
 685
 686                 if (!img) return;
 687
 688                 if (img.src.match("mark_unset")) {
 689                         img.src = img.src.replace("mark_unset", "mark_set");
 690                         img.alt = __("Unstar article");
 691                         query = query + "&mark=1";
 692                 } else {
 693                         img.src = img.src.replace("mark_set", "mark_unset");
 694                         img.alt = __("Star article");
 695                         query = query + "&mark=0";
 696                 }
 697
 698                 new Ajax.Request("backend.php", {
 699                         parameters: query,
 700                         onComplete: function(transport) {
 701                                 update();
 702                         } });
 703
 704         } catch (e) {
 705                 exception_error("toggle_mark", e);
 706         }
 707 }
 708
 709 function toggle_pub(img, id, note) {
 710
 711         try {
 712
 713                 var query = "?op=rpc&id=" + id + "&subop=publ";
 714
 715                 if (note != undefined) {
 716                         query = query + "&note=" + param_escape(note);
 717                 } else {
 718                         query = query + "&note=undefined";
 719                 }
 720
 721                 if (!img) return;
 722
 723                 if (img.src.match("pub_unset") || note != undefined) {
 724                         img.src = img.src.replace("pub_unset", "pub_set");
 725                         img.alt = __("Unpublish article");
 726                         query = query + "&pub=1";
 727
 728                 } else {
 729                         img.src = img.src.replace("pub_set", "pub_unset");
 730                         img.alt = __("Publish article");
 731                         query = query + "&pub=0";
 732                 }
 733
 734                 new Ajax.Request("backend.php", {
 735                         parameters: query,
 736                         onComplete: function(transport) {
 737                                 update();
 738                         } });
 739
 740         } catch (e) {
 741                 exception_error("toggle_pub", e);
 742         }
 743 }
 744
 745 function fatal_error(code, msg) {
 746         try {
 747
 748                 if (code == 6) {
 749                         window.location.href = "digest.php";
 750                 } else if (code == 5) {
 751                         window.location.href = "db-updater.php";
 752                 } else {
 753
 754                         if (msg == "") msg = "Unknown error";
 755
 756                         console.error("Fatal error: " + code + "\n" +
 757                                 msg);
 758
 759                 }
 760
 761         } catch (e) {
 762                 exception_error("fatalError", e);
 763         }
 764 }
 765
 766 function fatal_error_check(transport) {
 767         try {
 768                 if (transport.responseXML) {
 769                         var error = transport.responseXML.getElementsByTagName("error")[0];
 770
 771                         if (error) {
 772                                 var code = error.getAttribute("error-code");
 773                                 var msg = error.getAttribute("error-msg");
 774                                 if (code != 0) {
 775                                         fatal_error(code, msg);
 776                                         return false;
 777                                 }
 778                         }
 779                 }
 780         } catch (e) {
 781                 exception_error("fatal_error_check", e);
 782         }
 783         return true;
 784 }
 785
 786 function update_title(unread) {
 787         try {
 788                 document.title = "Tiny Tiny RSS";
 789
 790                 if (unread > 0)
 791                         document.title += " (" + unread + ")";
 792
 793         } catch (e) {
 794                 exception_error("update_title", e);
 795         }
 796 }
 797
 798 function tweet_article(id) {
 799         try {
 800
 801                 var query = "?op=rpc&subop=getTweetInfo&id=" + param_escape(id);
 802
 803                 console.log(query);
 804
 805                 var d = new Date();
 806       var ts = d.getTime();
 807
 808                 var w = window.open('backend.php?op=loading', 'ttrss_tweet',
 809                         "status=0,toolbar=0,location=0,width=500,height=400,scrollbars=1,menubar=0");
 810
 811                 new Ajax.Request("backend.php", {
 812                         parameters: query,
 813                         onComplete: function(transport) {
 814                                 var ti = JSON.parse(transport.responseText);
 815
 816                                 var share_url = "http://twitter.com/share?_=" + ts +
 817                                         "&text=" + param_escape(ti.title) +
 818                                         "&url=" + param_escape(ti.link);
 819
 820                                 w.location.href = share_url;
 821
 822                         } });
 823
 824         } catch (e) {
 825                 exception_error("tweet_article", e);
 826         }
 827 }
 828
 829 function toggle_select_article(elem) {
 830         try {
 831                 var article = elem.parentNode;
 832
 833                 if (article.hasClassName("selected"))
 834                         article.removeClassName("selected");
 835                 else
 836                         article.addClassName("selected");
 837
 838         } catch (e) {
 839                 exception_error("toggle_select_article", e);
 840         }
 841 }