digest.js

   1 var last_feeds = [];
   2 var init_params = {};
   3
   4 var _active_feed_id = false;
   5 var _active_feed_offset = false;
   6 var _update_timeout = false;
   7 var _view_update_timeout = false;
   8 var _feedlist_expanded = false;
   9 var _update_seq = 1;
  10
  11 function article_appear(article_id) {
  12         try {
  13                 new Effect.Appear('A-' + article_id);
  14         } catch (e) {
  15                 exception_error("article_appear", e);
  16         }
  17 }
  18
  19 function catchup_feed(feed_id, callback) {
  20         try {
  21
  22                 var fn = find_feed(last_feeds, feed_id).title;
  23
  24                 if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
  25
  26                         var is_cat = "";
  27
  28                         if (feed_id < 0) is_cat = "true"; // KLUDGE
  29
  30                         var query = "?op=rpc&subop=catchupFeed&feed_id=" +
  31                                 feed_id + "&is_cat=" + is_cat;
  32
  33                         new Ajax.Request("backend.php", {
  34                                 parameters: query,
  35                                 onComplete: function(transport) {
  36                                         if (callback) callback(transport);
  37
  38                                         update();
  39                                 } });
  40                 }
  41
  42         } catch (e) {
  43                 exception_error("catchup_article", e);
  44         }
  45 }
  46
  47 function get_visible_article_ids() {
  48         try {
  49                 var elems = $("headlines-content").getElementsByTagName("LI");
  50                 var ids = [];
  51
  52                 for (var i = 0; i < elems.length; i++) {
  53                         if (elems[i].id && elems[i].id.match("A-")) {
  54                         ids.push(elems[i].id.replace("A-", ""));
  55                         }
  56                 }
  57
  58                 return ids;
  59
  60         } catch (e) {
  61                 exception_error("get_visible_article_ids", e);
  62         }
  63 }
  64
  65 function catchup_visible_articles(callback) {
  66         try {
  67
  68                 var ids = get_visible_article_ids();
  69
  70                 if (confirm(__("Mark %d displayed articles as read?").replace("%d", ids.length))) {
  71
  72                         var query = "?op=rpc&subop=catchupSelected" +
  73                                 "&cmode=0&ids=" + param_escape(ids);
  74
  75                         new Ajax.Request("backend.php", {
  76                                 parameters: query,
  77                                 onComplete: function(transport) {
  78                                         if (callback) callback(transport);
  79
  80                                         viewfeed(_active_feed_id, 0);
  81                                 } });
  82
  83                         }
  84
  85         } catch (e) {
  86                 exception_error("catchup_visible_articles", e);
  87         }
  88 }
  89
  90 function catchup_article(article_id, callback) {
  91         try {
  92                 var query = "?op=rpc&subop=catchupSelected" +
  93                         "&cmode=0&ids=" + article_id;
  94
  95                 new Ajax.Request("backend.php", {
  96                         parameters: query,
  97                         onComplete: function(transport) {
  98                                 if (callback) callback(transport);
  99                         } });
 100
 101         } catch (e) {
 102                 exception_error("catchup_article", e);
 103         }
 104 }
 105
 106 function set_selected_feed(feed_id) {
 107         try {
 108                 var feeds = $("feeds-content").getElementsByTagName("LI");
 109
 110                 for (var i = 0; i < feeds.length; i++) {
 111                         if (feeds[i].id == "F-" + feed_id)
 112                                 feeds[i].className = "selected";
 113                         else
 114                                 feeds[i].className = "";
 115                 }
 116
 117                 _active_feed_id = feed_id;
 118
 119         } catch (e) {
 120                 exception_error("mark_selected_feed", e);
 121         }
 122 }
 123
 124 function zoom(elem, article_id) {
 125         try {
 126                 //alert(elem + "/" + article_id);
 127
 128                 elem.innerHTML = "<img src='images/indicator_tiny.gif'> " +
 129                         __("Loading, please wait...");
 130
 131                 new Ajax.Request("backend.php", {
 132                         parameters: "?op=rpc&subop=digest-get-contents&article_id=" +
 133                                 article_id,
 134                         onComplete: function(transport) {
 135                                 fatal_error_check(transport);
 136
 137                                 var reply = JSON.parse(transport.responseText);
 138
 139                                 if (reply) {
 140                                         var article = reply['article'];
 141
 142                                         elem.innerHTML = article.content;
 143
 144                                         new Effect.BlindDown(elem, {duration : 0.5});
 145
 146                                         elem.onclick = false;
 147                                         elem.style.cursor = "auto";
 148
 149                                         catchup_article(article_id,
 150                                                 function() {
 151                                                         window.clearTimeout(_view_update_timeout);
 152                                                         _view_update_timeout = window.setTimeout("view_update()", 500);
 153                                                         $("A-" + article_id).className = "read";
 154                                         });
 155
 156
 157                                 } else {
 158                                         elem.innerHTML = __("Error: unable to load article.");
 159                                 }
 160
 161                                 } });
 162
 163
 164         } catch (e) {
 165                 exception_error("zoom", e);
 166         }
 167 }
 168
 169 function load_more() {
 170         try {
 171                 var pr = $("H-LOADING-IMG");
 172
 173                 if (pr) Element.show(pr);
 174
 175                 viewfeed(_active_feed_id, _active_feed_offset + 10, false, false, true,
 176                         function() {
 177                                 var pr = $("H-LOADING-IMG");
 178
 179                                 if (pr) Element.hide(pr);
 180                         });
 181         } catch (e) {
 182                 exception_error("load_more", e);
 183         }
 184 }
 185
 186 function update(callback) {
 187         try {
 188                 console.log('updating feeds...');
 189
 190                 window.clearTimeout(_update_timeout);
 191
 192                 new Ajax.Request("backend.php", {
 193                         parameters: "?op=rpc&subop=digest-init",
 194                         onComplete: function(transport) {
 195                                 fatal_error_check(transport);
 196                                 parse_feeds(transport);
 197                                 set_selected_feed(_active_feed_id);
 198
 199                                 if (callback) callback(transport);
 200                                 } });
 201
 202                 _update_timeout = window.setTimeout('update()', 5*1000);
 203         } catch (e) {
 204                 exception_error("update", e);
 205         }
 206 }
 207
 208 function remove_headline_entry(article_id) {
 209         try {
 210                 var elem = $('A-' + article_id);
 211
 212                 if (elem) {
 213                         elem.parentNode.removeChild(elem);
 214                 }
 215
 216         } catch (e) {
 217                 exception_error("remove_headline_entry", e);
 218         }
 219 }
 220
 221 function view_update() {
 222         try {
 223                 viewfeed(_active_feed_id, _active_feed_offset, false, true, true);
 224                 update();
 225         } catch (e) {
 226                 exception_error("view_update", e);
 227         }
 228 }
 229
 230 function view(article_id, dismiss_only) {
 231         try {
 232                 remove_headline_entry(article_id);
 233
 234                 catchup_article(article_id,
 235                         function() {
 236                                 window.clearTimeout(_view_update_timeout);
 237                                 _view_update_timeout = window.setTimeout("view_update()", 500);
 238                         });
 239
 240                 return dismiss_only != true;
 241         } catch (e) {
 242                 exception_error("view", e);
 243         }
 244 }
 245
 246 function viewfeed(feed_id, offset, replace, no_effects, no_indicator, callback) {
 247         try {
 248
 249                 if (!feed_id) feed_id = _active_feed_id;
 250
 251                 if (!offset) {
 252                         offset = 0;
 253                 } else {
 254                         offset = _active_feed_offset + offset;
 255                 }
 256
 257                 if (replace == undefined) replace = (offset == 0);
 258
 259                 _update_seq = _update_seq + 1;
 260
 261                 var query = "backend.php?op=rpc&subop=digest-update&feed_id=" +
 262                                 param_escape(feed_id) + "&offset=" + offset +
 263                                 "&seq=" + _update_seq;
 264
 265                 console.log(query);
 266
 267                 if ($("F-" + feed_id)) {
 268                         var img = $("F-" + feed_id).getElementsByTagName("IMG")[0];
 269
 270                         if (img && !no_indicator) {
 271                                 img.setAttribute("orig_src", img.src);
 272                                 img.src = 'images/indicator_tiny.gif';
 273                         }
 274                 }
 275
 276                 new Ajax.Request("backend.php", {
 277                         parameters: query,
 278                         onComplete: function(transport) {
 279                                 Element.hide("overlay");
 280
 281                                 fatal_error_check(transport);
 282                                 parse_headlines(transport, replace, no_effects);
 283                                 set_selected_feed(feed_id);
 284                                 _active_feed_offset = offset;
 285
 286                                 if (img && !no_indicator)
 287                                         img.src = img.getAttribute("orig_src");
 288
 289                                 if (callback) callback(transport);
 290
 291                         } });
 292
 293         } catch (e) {
 294                 exception_error("view", e);
 295         }
 296 }
 297
 298 function find_article(articles, article_id) {
 299         try {
 300                 for (var i = 0; i < articles.length; i++) {
 301                         if (articles[i].id == article_id)
 302                                 return articles[i];
 303                 }
 304
 305                 return false;
 306
 307         } catch (e) {
 308                 exception_error("find_article", e);
 309         }
 310 }
 311
 312 function find_feed(feeds, feed_id) {
 313         try {
 314                 for (var i = 0; i < feeds.length; i++) {
 315                         if (feeds[i].id == feed_id)
 316                                 return feeds[i];
 317                 }
 318
 319                 return false;
 320
 321         } catch (e) {
 322                 exception_error("find_feed", e);
 323         }
 324 }
 325
 326 function get_feed_icon(feed) {
 327         try {
 328                 if (feed.has_icon)
 329                         return getInitParam('icons_url') + "/" + feed.id + '.ico';
 330
 331                 if (feed.id == -1)
 332                         return 'images/mark_set.png';
 333
 334                 if (feed.id == -2)
 335                         return 'images/pub_set.png';
 336
 337                 if (feed.id == -3)
 338                         return 'images/fresh.png';
 339
 340                 if (feed.id == -4)
 341                         return 'images/tag.png';
 342
 343                 if (feed.id < -10)
 344                         return 'images/label.png';
 345
 346                 return 'images/blank_icon.gif';
 347
 348         } catch (e) {
 349                 exception_error("get_feed_icon", e);
 350         }
 351 }
 352
 353 function add_feed_entry(feed) {
 354         try {
 355                 var icon_part = "";
 356
 357                 icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
 358
 359                 var tmp_html = "<li id=\"F-"+feed.id+"\" " +
 360                                 "onmouseover=\"feed_mi(this)\" onmouseout=\"feed_mo(this)\">" +
 361                         icon_part +
 362                         "<a href=\"#\" onclick=\"viewfeed("+feed.id+")\">" + feed.title + "</a>" +
 363                         "<div class='unread-ctr'>" +
 364                                 "<img onclick=\"catchup_feed("+feed.id+")\" title=\"" +
 365                                         __("Mark as read") +
 366                                         "\" class=\"dismiss\" style='display : none' src=\"images/digest_checkbox.png\">" +
 367                                 "<span class=\"unread\">" + feed.unread + "</span>" +
 368                         "</div>" +
 369                         "</li>";
 370
 371                 $("feeds-content").innerHTML += tmp_html;
 372
 373         } catch (e) {
 374                 exception_error("add_feed_entry", e);
 375         }
 376 }
 377
 378 function add_headline_entry(article, feed, no_effects) {
 379         try {
 380
 381                 var icon_part = "";
 382
 383                 icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
 384
 385                 var mark_part = "";
 386                 var publ_part = "";
 387
 388                 var tags_part = "";
 389
 390                 if (article.tags.length > 0) {
 391
 392                         tags_part = " " + __("in") + " ";
 393
 394                         for (var i = 0; i < Math.min(5, article.tags.length); i++) {
 395                                 tags_part += "<a href=\"#\" onclick=\"viewfeed('" +
 396                                                 article.tags[i] + "')\">" +
 397                                         article.tags[i] + "</a>, ";
 398                         }
 399
 400                         tags_part = tags_part.replace(/, $/, "");
 401                         tags_part = "<span class=\"tags\">" + tags_part + "</span>";
 402                 }
 403
 404                 if (article.marked)
 405                         mark_part = "<img title='"+ __("Unstar article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_set.png'>";
 406                 else
 407                         mark_part =     "<img title='"+__("Star article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_unset.png'>";
 408
 409                 if (article.published)
 410                         publ_part = "<img title='"+__("Unpublish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_set.png'>";
 411                 else
 412                         publ_part =     "<img title='"+__("Publish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_unset.png'>";
 413
 414                 var style = "";
 415
 416                 if (!no_effects) style = "style=\"display : none\"";
 417
 418                 if (article.excerpt.trim() == "")
 419                         article.excerpt = __("Click to expand article.");
 420
 421                 var li_class = "unread";
 422
 423                 var fresh_max = getInitParam("fresh_article_max_age") * 60 * 60;
 424                 var d = new Date();
 425
 426                 if (d.getTime() / 1000 - article.updated < fresh_max)
 427                         li_class = "fresh";
 428
 429                 var tmp_html = "<li id=\"A-"+article.id+"\" "+style+" class=\""+li_class+"\">" +
 430                         icon_part +
 431
 432                         "<div class='digest-check'>" +
 433                                 mark_part +
 434                                 publ_part +
 435                                 "<img title='" + __("Share on Twitter") + "' onclick=\"tweet_article("+article.id+", true)\" src='images/art-tweet.png'>" +
 436                                 "<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
 437                         "</div>" +
 438                         "<a target=\"_blank\" href=\""+article.link+"\""+
 439                                 "onclick=\"return view("+article.id+")\" class='title'>" +
 440                                 article.title + "</a>" +
 441                         "<div class='body'>" +
 442                         "<div title=\""+__("Click to expand article")+"\" onclick=\"zoom(this, "+article.id+")\" class='excerpt'>" +
 443                                 article.excerpt + "</div>" +
 444                         "<div class='info'><a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
 445                                 feed.title + "</a> " + tags_part + " @ " +
 446                                 new Date(article.updated * 1000) + "</div>" +
 447                         "</div></li>";
 448
 449                 $("headlines-content").innerHTML += tmp_html;
 450
 451                 if (!no_effects)
 452                         window.setTimeout('article_appear(' + article.id + ')', 100);
 453
 454         } catch (e) {
 455                 exception_error("add_headline_entry", e);
 456         }
 457 }
 458
 459 function expand_feeds() {
 460         try {
 461                 _feedlist_expanded = true;
 462
 463                 redraw_feedlist(last_feeds);
 464
 465         } catch (e) {
 466                 exception_error("expand_feeds", e);
 467         }
 468 }
 469
 470 function redraw_feedlist(feeds) {
 471         try {
 472
 473                 $('feeds-content').innerHTML = "";
 474
 475                 var limit = 10;
 476
 477                 if (_feedlist_expanded) limit = feeds.length;
 478
 479                 for (var i = 0; i < Math.min(limit, feeds.length); i++) {
 480                         add_feed_entry(feeds[i]);
 481                 }
 482
 483                 if (feeds.length > limit) {
 484                         $('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
 485                                 "<img src='images/blank_icon.gif'>" +
 486                                 "<a href=\"#\" onclick=\"expand_feeds()\">" +
 487                                 __("%d more...").replace("%d", feeds.length-10) +
 488                                 "</a>" + "</li>";
 489                 }
 490
 491                 if (feeds.length == 0) {
 492                         $('feeds-content').innerHTML =
 493                                 "<div class='insensitive' style='text-align : center'>" +
 494                                         __("No unread feeds.") + "</div>";
 495                 }
 496
 497         } catch (e) {
 498                 exception_error("redraw_feedlist", e);
 499         }
 500 }
 501
 502 function parse_feeds(transport) {
 503         try {
 504                 var reply = JSON.parse(transport.responseText);
 505
 506                 if (!reply) return;
 507
 508                 var feeds = reply['feeds'];
 509
 510                 if (feeds) {
 511
 512                         feeds.sort( function (a,b)
 513                                 {
 514                                         if (b.unread != a.unread)
 515                                                 return (b.unread - a.unread)
 516                                         else
 517                                                 if (a.title > b.title)
 518                                                         return 1;
 519                                                 else if (a.title < b.title)
 520                                                         return -1;
 521                                                 else
 522                                                         return 0;
 523                                 });
 524
 525                         var all_articles = find_feed(feeds, -4);
 526
 527                         update_title(all_articles.unread);
 528
 529                         last_feeds = feeds;
 530
 531                         redraw_feedlist(feeds);
 532                 }
 533
 534         } catch (e) {
 535                 exception_error("parse_feeds", e);
 536         }
 537 }
 538
 539 function parse_headlines(transport, replace, no_effects) {
 540         try {
 541                 var reply = JSON.parse(transport.responseText);
 542                 if (!reply) return;
 543
 544                 var seq = reply['seq'];
 545
 546                 if (seq) {
 547                         if (seq != _update_seq) {
 548                                 console.log("parse_headlines: wrong sequence received.");
 549                                 return;
 550                         }
 551                 } else {
 552                         return;
 553                 }
 554
 555                 var headlines = reply['headlines']['content'];
 556                 var headlines_title = reply['headlines']['title'];
 557
 558                 if (headlines && headlines_title) {
 559                         $("headlines-title").innerHTML = headlines_title
 560
 561                         if (replace) {
 562                                 $('headlines-content').innerHTML = '';
 563                                 Element.hide('headlines-content');
 564                         }
 565
 566                         var pr = $('H-MORE-PROMPT');
 567
 568                         if (pr) pr.parentNode.removeChild(pr);
 569
 570                         var inserted = false;
 571
 572                         for (var i = 0; i < headlines.length; i++) {
 573
 574                                 if (!$('A-' + headlines[i].id)) {
 575                                         add_headline_entry(headlines[i],
 576                                                         find_feed(last_feeds, headlines[i].feed_id), !no_effects);
 577
 578                                         inserted = $("A-" + headlines[i].id);
 579                                 }
 580                         }
 581
 582                         var ids = get_visible_article_ids();
 583
 584                         if (ids.length > 0) {
 585                                 if (pr) {
 586                                         $('headlines-content').appendChild(pr);
 587                                         if (!no_effects && inserted) new Effect.ScrollTo(inserted);
 588                                 } else {
 589                                         $('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
 590                                                 "<div class='body'>" +
 591                                                 "<a href=\"#\" onclick=\"catchup_visible_articles()\">" +
 592                                                 __("Mark as read") + "</a> | " +
 593                                                 "<a href=\"#\" onclick=\"load_more()\">" +
 594                                                 __("Load more...") + "</a>" +
 595                                                 "<img style=\"display : none\" "+
 596                                                 "id=\"H-LOADING-IMG\" src='images/indicator_tiny.gif'>" +
 597                                                 "</div></li>";
 598                                 }
 599                         } else {
 600                                 // FIXME : display some kind of "nothing to see here" prompt here
 601                         }
 602
 603                         if (replace && !no_effects)
 604                                 new Effect.Appear('headlines-content', {duration : 0.3});
 605
 606                         //new Effect.Appear('headlines-content');
 607                 }
 608
 609         } catch (e) {
 610                 exception_error("parse_headlines", e);
 611         }
 612 }
 613
 614 function init_second_stage() {
 615         try {
 616                 new Ajax.Request("backend.php", {
 617                         parameters: "backend.php?op=rpc&subop=digest-init",
 618                         onComplete: function(transport) {
 619                                 parse_feeds(transport);
 620                                 window.setTimeout('viewfeed(-4)', 100);
 621                                 _update_timeout = window.setTimeout('update()', 5*1000);
 622                                 } });
 623
 624         } catch (e) {
 625                 exception_error("init_second_stage", e);
 626         }
 627 }
 628
 629 function init() {
 630         try {
 631                 dojo.require("dijit.Dialog");
 632
 633                 new Ajax.Request("backend.php", {
 634                         parameters: "?op=rpc&subop=sanityCheck",
 635                         onComplete: function(transport) {
 636                                 backend_sanity_check_callback(transport);
 637                         } });
 638
 639         } catch (e) {
 640                 exception_error("digest_init", e);
 641         }
 642 }
 643
 644 function toggle_mark(img, id) {
 645
 646         try {
 647
 648                 var query = "?op=rpc&id=" + id + "&subop=mark";
 649
 650                 if (!img) return;
 651
 652                 if (img.src.match("mark_unset")) {
 653                         img.src = img.src.replace("mark_unset", "mark_set");
 654                         img.alt = __("Unstar article");
 655                         query = query + "&mark=1";
 656                 } else {
 657                         img.src = img.src.replace("mark_set", "mark_unset");
 658                         img.alt = __("Star article");
 659                         query = query + "&mark=0";
 660                 }
 661
 662                 new Ajax.Request("backend.php", {
 663                         parameters: query,
 664                         onComplete: function(transport) {
 665                                 update();
 666                         } });
 667
 668         } catch (e) {
 669                 exception_error("toggle_mark", e);
 670         }
 671 }
 672
 673 function toggle_pub(img, id, note) {
 674
 675         try {
 676
 677                 var query = "?op=rpc&id=" + id + "&subop=publ";
 678
 679                 if (note != undefined) {
 680                         query = query + "&note=" + param_escape(note);
 681                 } else {
 682                         query = query + "&note=undefined";
 683                 }
 684
 685                 if (!img) return;
 686
 687                 if (img.src.match("pub_unset") || note != undefined) {
 688                         img.src = img.src.replace("pub_unset", "pub_set");
 689                         img.alt = __("Unpublish article");
 690                         query = query + "&pub=1";
 691
 692                 } else {
 693                         img.src = img.src.replace("pub_set", "pub_unset");
 694                         img.alt = __("Publish article");
 695                         query = query + "&pub=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_pub", e);
 706         }
 707 }
 708
 709 function fatal_error(code, msg) {
 710         try {
 711
 712                 if (code == 6) {
 713                         window.location.href = "digest.php";
 714                 } else if (code == 5) {
 715                         window.location.href = "db-updater.php";
 716                 } else {
 717
 718                         if (msg == "") msg = "Unknown error";
 719
 720                         console.error("Fatal error: " + code + "\n" +
 721                                 msg);
 722
 723                 }
 724
 725         } catch (e) {
 726                 exception_error("fatalError", e);
 727         }
 728 }
 729
 730 function fatal_error_check(transport) {
 731         try {
 732                 if (transport.responseXML) {
 733                         var error = transport.responseXML.getElementsByTagName("error")[0];
 734
 735                         if (error) {
 736                                 var code = error.getAttribute("error-code");
 737                                 var msg = error.getAttribute("error-msg");
 738                                 if (code != 0) {
 739                                         fatal_error(code, msg);
 740                                         return false;
 741                                 }
 742                         }
 743                 }
 744         } catch (e) {
 745                 exception_error("fatal_error_check", e);
 746         }
 747         return true;
 748 }
 749
 750 function feed_mi(elem) {
 751         try {
 752                 var imgs = elem.getElementsByTagName('IMG');
 753                 var spans = elem.getElementsByTagName('SPAN');
 754
 755                 for (var i = 0; i < imgs.length; i++) {
 756                         if (imgs[i].className == "dismiss")
 757                                 Element.show(imgs[i]);
 758                 }
 759
 760                 for (var i = 0; i < spans.length; i++) {
 761                         if (spans[i].className == "unread")
 762                                 Element.hide(spans[i]);
 763                 }
 764
 765
 766         } catch (e) {
 767                 exception_error("feed_mi", e);
 768         }
 769 }
 770
 771 function feed_mo(elem) {
 772         try {
 773                 var imgs = elem.getElementsByTagName('IMG');
 774                 var spans = elem.getElementsByTagName('SPAN');
 775
 776                 for (var i = 0; i < imgs.length; i++) {
 777                         if (imgs[i].className == "dismiss")
 778                                 Element.hide(imgs[i]);
 779                 }
 780
 781                 for (var i = 0; i < spans.length; i++) {
 782                         if (spans[i].className == "unread")
 783                                 Element.show(spans[i]);
 784                 }
 785
 786         } catch (e) {
 787                 exception_error("feed_mo", e);
 788         }
 789 }
 790
 791 function update_title(unread) {
 792         try {
 793                 document.title = "Tiny Tiny RSS";
 794
 795                 if (unread > 0)
 796                         document.title += " (" + unread + ")";
 797
 798         } catch (e) {
 799                 exception_error("update_title", e);
 800         }
 801 }
 802
 803 function tweet_article(id) {
 804         try {
 805
 806                 var query = "?op=rpc&subop=getTweetInfo&id=" + param_escape(id);
 807
 808                 console.log(query);
 809
 810                 var d = new Date();
 811       var ts = d.getTime();
 812
 813                 var w = window.open('backend.php?op=loading', 'ttrss_tweet',
 814                         "status=0,toolbar=0,location=0,width=500,height=400,scrollbars=1,menubar=0");
 815
 816                 new Ajax.Request("backend.php", {
 817                         parameters: query,
 818                         onComplete: function(transport) {
 819                                 var ti = JSON.parse(transport.responseText);
 820
 821                                 var share_url = "http://twitter.com/share?_=" + ts +
 822                                         "&text=" + param_escape(ti.title) +
 823                                         "&url=" + param_escape(ti.link);
 824
 825                                 w.location.href = share_url;
 826
 827                         } });
 828
 829         } catch (e) {
 830                 exception_error("tweet_article", e);
 831         }
 832 }