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) $("headlines").scrollTop = 0;
 317
 318                 var query = "backend.php?op=rpc&subop=digest-update&feed_id=" +
 319                                 param_escape(feed_id) + "&offset=" + offset +
 320                                 "&seq=" + _update_seq;
 321
 322                 console.log(query);
 323
 324                 if ($("F-" + feed_id)) {
 325                         var img = $("F-" + feed_id).getElementsByTagName("IMG")[0];
 326
 327                         if (img && !no_indicator) {
 328                                 img.setAttribute("orig_src", img.src);
 329                                 img.src = 'images/indicator_tiny.gif';
 330                         }
 331                 }
 332
 333                 new Ajax.Request("backend.php", {
 334                         parameters: query,
 335                         onComplete: function(transport) {
 336                                 Element.hide("overlay");
 337
 338                                 fatal_error_check(transport);
 339                                 parse_headlines(transport, replace, no_effects);
 340                                 set_selected_feed(feed_id);
 341                                 _active_feed_offset = offset;
 342
 343                                 if (img && !no_indicator)
 344                                         img.src = img.getAttribute("orig_src");
 345
 346                                 if (callback) callback(transport);
 347
 348                         } });
 349
 350         } catch (e) {
 351                 exception_error("view", e);
 352         }
 353 }
 354
 355 function find_article(articles, article_id) {
 356         try {
 357                 for (var i = 0; i < articles.length; i++) {
 358                         if (articles[i].id == article_id)
 359                                 return articles[i];
 360                 }
 361
 362                 return false;
 363
 364         } catch (e) {
 365                 exception_error("find_article", e);
 366         }
 367 }
 368
 369 function find_feed(feeds, feed_id) {
 370         try {
 371                 for (var i = 0; i < feeds.length; i++) {
 372                         if (feeds[i].id == feed_id)
 373                                 return feeds[i];
 374                 }
 375
 376                 return false;
 377
 378         } catch (e) {
 379                 exception_error("find_feed", e);
 380         }
 381 }
 382
 383 function get_feed_icon(feed) {
 384         try {
 385                 if (feed.has_icon)
 386                         return getInitParam('icons_url') + "/" + feed.id + '.ico';
 387
 388                 if (feed.id == -1)
 389                         return 'images/mark_set.png';
 390
 391                 if (feed.id == -2)
 392                         return 'images/pub_set.png';
 393
 394                 if (feed.id == -3)
 395                         return 'images/fresh.png';
 396
 397                 if (feed.id == -4)
 398                         return 'images/tag.png';
 399
 400                 if (feed.id < -10)
 401                         return 'images/label.png';
 402
 403                 return 'images/blank_icon.gif';
 404
 405         } catch (e) {
 406                 exception_error("get_feed_icon", e);
 407         }
 408 }
 409
 410 function add_feed_entry(feed) {
 411         try {
 412                 var icon_part = "";
 413
 414                 icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
 415
 416                 var tmp_html = "<li id=\"F-"+feed.id+"\" onclick=\"viewfeed("+feed.id+")\">" +
 417                         icon_part + feed.title +
 418                         "<div class='unread-ctr'>" + "<span class=\"unread\">" + feed.unread + "</span>" +
 419                         "</div>" + "</li>";
 420
 421                 $("feeds-content").innerHTML += tmp_html;
 422
 423
 424         } catch (e) {
 425                 exception_error("add_feed_entry", e);
 426         }
 427 }
 428
 429 function add_headline_entry(article, feed, no_effects) {
 430         try {
 431
 432                 var icon_part = "";
 433
 434                 icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
 435
 436
 437                 var style = "";
 438
 439                 //if (!no_effects) style = "style=\"display : none\"";
 440
 441                 if (article.excerpt.trim() == "")
 442                         article.excerpt = __("Click to expand article.");
 443
 444                 var li_class = "unread";
 445
 446                 var fresh_max = getInitParam("fresh_article_max_age") * 60 * 60;
 447                 var d = new Date();
 448
 449                 if (d.getTime() / 1000 - article.updated < fresh_max)
 450                         li_class = "fresh";
 451
 452                 //"<img title='" + __("Share on Twitter") + "' onclick=\"tweet_article("+article.id+", true)\" src='images/art-tweet.png'>" +
 453
 454                 //"<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
 455
 456                 var checkbox_part = "<input type=\"checkbox\" class=\"cb\" onclick=\"toggle_select_article(this)\"/>";
 457
 458                 var date = new Date(article.updated * 1000);
 459
 460                 var date_part = date.toString().substring(0,21);
 461
 462                 var tmp_html = "<li id=\"A-"+article.id+"\" "+style+" class=\""+li_class+"\">" +
 463                         checkbox_part +
 464                         icon_part +
 465                         "<a target=\"_blank\" href=\""+article.link+"\""+
 466                                 "onclick=\"return view("+article.id+")\" class='title'>" +
 467                                 article.title + "</a>" +
 468                         "<div class='body'>" +
 469                         "<div onclick=\"view("+article.id+")\" class='excerpt'>" +
 470                                 article.excerpt + "</div>" +
 471                         "<div class='info'>";
 472
 473 /*              tmp_html += "<a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
 474                                         feed.title + "</a> " + " @ "; */
 475
 476                 tmp_html += date_part + "</div>" +
 477                         "</div></li>";
 478
 479                 $("headlines-content").innerHTML += tmp_html;
 480
 481                 if (!no_effects)
 482                         window.setTimeout('article_appear(' + article.id + ')', 100);
 483
 484         } catch (e) {
 485                 exception_error("add_headline_entry", e);
 486         }
 487 }
 488
 489 function expand_feeds() {
 490         try {
 491                 _feedlist_expanded = true;
 492
 493                 redraw_feedlist(last_feeds);
 494
 495         } catch (e) {
 496                 exception_error("expand_feeds", e);
 497         }
 498 }
 499
 500 function redraw_feedlist(feeds) {
 501         try {
 502
 503                 $('feeds-content').innerHTML = "";
 504
 505                 var limit = 10;
 506
 507                 if (_feedlist_expanded) limit = feeds.length;
 508
 509                 for (var i = 0; i < Math.min(limit, feeds.length); i++) {
 510                         add_feed_entry(feeds[i]);
 511                 }
 512
 513                 if (feeds.length > limit) {
 514                         $('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
 515                                 "<img src='images/blank_icon.gif'>" +
 516                                 "<a href=\"#\" onclick=\"expand_feeds()\">" +
 517                                 __("%d more...").replace("%d", feeds.length-10) +
 518                                 "</a>" + "</li>";
 519                 }
 520
 521                 if (feeds.length == 0) {
 522                         $('feeds-content').innerHTML =
 523                                 "<div class='insensitive' style='text-align : center'>" +
 524                                         __("No unread feeds.") + "</div>";
 525                 }
 526
 527                 if (_active_feed_id)
 528                         set_selected_feed(_active_feed_id);
 529
 530         } catch (e) {
 531                 exception_error("redraw_feedlist", e);
 532         }
 533 }
 534
 535 function parse_feeds(transport) {
 536         try {
 537                 var reply = JSON.parse(transport.responseText);
 538
 539                 if (!reply) return;
 540
 541                 var feeds = reply['feeds'];
 542
 543                 if (feeds) {
 544
 545                         feeds.sort( function (a,b)
 546                                 {
 547                                         if (b.unread != a.unread)
 548                                                 return (b.unread - a.unread)
 549                                         else
 550                                                 if (a.title > b.title)
 551                                                         return 1;
 552                                                 else if (a.title < b.title)
 553                                                         return -1;
 554                                                 else
 555                                                         return 0;
 556                                 });
 557
 558                         var all_articles = find_feed(feeds, -4);
 559
 560                         update_title(all_articles.unread);
 561
 562                         last_feeds = feeds;
 563
 564                         redraw_feedlist(feeds);
 565                 }
 566
 567         } catch (e) {
 568                 exception_error("parse_feeds", e);
 569         }
 570 }
 571
 572 function parse_headlines(transport, replace, no_effects) {
 573         try {
 574                 var reply = JSON.parse(transport.responseText);
 575                 if (!reply) return;
 576
 577                 var seq = reply['seq'];
 578
 579                 if (seq) {
 580                         if (seq != _update_seq) {
 581                                 console.log("parse_headlines: wrong sequence received.");
 582                                 return;
 583                         }
 584                 } else {
 585                         return;
 586                 }
 587
 588                 var headlines = reply['headlines']['content'];
 589                 var headlines_title = reply['headlines']['title'];
 590
 591                 if (headlines && headlines_title) {
 592
 593                         if (replace) {
 594                                 $('headlines-content').innerHTML = '';
 595                         }
 596
 597                         var pr = $('H-MORE-PROMPT');
 598
 599                         if (pr) pr.parentNode.removeChild(pr);
 600
 601                         var inserted = false;
 602
 603                         for (var i = 0; i < headlines.length; i++) {
 604
 605                                 if (!$('A-' + headlines[i].id)) {
 606                                         add_headline_entry(headlines[i],
 607                                                         find_feed(last_feeds, headlines[i].feed_id), !no_effects);
 608
 609                                 }
 610                         }
 611
 612                         console.log(inserted.id);
 613
 614                         var ids = get_visible_article_ids();
 615
 616                         if (ids.length > 0) {
 617                                 if (pr) {
 618                                         $('headlines-content').appendChild(pr);
 619
 620                                 } else {
 621                                         $('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
 622                                                 "<div class='body'>" +
 623                                                 "<a href=\"#\" onclick=\"catchup_visible_articles()\">" +
 624                                                 __("Mark as read") + "</a> | " +
 625                                                 "<a href=\"javascript:load_more()\">" +
 626                                                 __("Load more...") + "</a>" +
 627                                                 "<img style=\"display : none\" "+
 628                                                 "id=\"H-LOADING-IMG\" src='images/indicator_tiny.gif'>" +
 629                                                 "</div></li>";
 630                                 }
 631                         } else {
 632                                 // FIXME : display some kind of "nothing to see here" prompt here
 633                         }
 634
 635 //                      if (replace && !no_effects)
 636 //                              new Effect.Appear('headlines-content', {duration : 0.3});
 637
 638                         //new Effect.Appear('headlines-content');
 639                 }
 640
 641         } catch (e) {
 642                 exception_error("parse_headlines", e);
 643         }
 644 }
 645
 646 function init_second_stage() {
 647         try {
 648                 new Ajax.Request("backend.php", {
 649                         parameters: "backend.php?op=rpc&subop=digest-init",
 650                         onComplete: function(transport) {
 651                                 parse_feeds(transport);
 652                                 Element.hide("overlay");
 653
 654                                 window.setTimeout('viewfeed(-4)', 100);
 655                                 _update_timeout = window.setTimeout('update()', 5*1000);
 656                                 } });
 657
 658         } catch (e) {
 659                 exception_error("init_second_stage", e);
 660         }
 661 }
 662
 663 function init() {
 664         try {
 665                 dojo.require("dijit.Dialog");
 666
 667                 new Ajax.Request("backend.php", {
 668                         parameters: "?op=rpc&subop=sanityCheck",
 669                         onComplete: function(transport) {
 670                                 backend_sanity_check_callback(transport);
 671                         } });
 672
 673         } catch (e) {
 674                 exception_error("digest_init", e);
 675         }
 676 }
 677
 678 function toggle_mark(img, id) {
 679
 680         try {
 681
 682                 var query = "?op=rpc&id=" + id + "&subop=mark";
 683
 684                 if (!img) return;
 685
 686                 if (img.src.match("mark_unset")) {
 687                         img.src = img.src.replace("mark_unset", "mark_set");
 688                         img.alt = __("Unstar article");
 689                         query = query + "&mark=1";
 690                 } else {
 691                         img.src = img.src.replace("mark_set", "mark_unset");
 692                         img.alt = __("Star article");
 693                         query = query + "&mark=0";
 694                 }
 695
 696                 new Ajax.Request("backend.php", {
 697                         parameters: query,
 698                         onComplete: function(transport) {
 699                                 update();
 700                         } });
 701
 702         } catch (e) {
 703                 exception_error("toggle_mark", e);
 704         }
 705 }
 706
 707 function toggle_pub(img, id, note) {
 708
 709         try {
 710
 711                 var query = "?op=rpc&id=" + id + "&subop=publ";
 712
 713                 if (note != undefined) {
 714                         query = query + "&note=" + param_escape(note);
 715                 } else {
 716                         query = query + "&note=undefined";
 717                 }
 718
 719                 if (!img) return;
 720
 721                 if (img.src.match("pub_unset") || note != undefined) {
 722                         img.src = img.src.replace("pub_unset", "pub_set");
 723                         img.alt = __("Unpublish article");
 724                         query = query + "&pub=1";
 725
 726                 } else {
 727                         img.src = img.src.replace("pub_set", "pub_unset");
 728                         img.alt = __("Publish article");
 729                         query = query + "&pub=0";
 730                 }
 731
 732                 new Ajax.Request("backend.php", {
 733                         parameters: query,
 734                         onComplete: function(transport) {
 735                                 update();
 736                         } });
 737
 738         } catch (e) {
 739                 exception_error("toggle_pub", e);
 740         }
 741 }
 742
 743 function fatal_error(code, msg) {
 744         try {
 745
 746                 if (code == 6) {
 747                         window.location.href = "digest.php";
 748                 } else if (code == 5) {
 749                         window.location.href = "db-updater.php";
 750                 } else {
 751
 752                         if (msg == "") msg = "Unknown error";
 753
 754                         console.error("Fatal error: " + code + "\n" +
 755                                 msg);
 756
 757                 }
 758
 759         } catch (e) {
 760                 exception_error("fatalError", e);
 761         }
 762 }
 763
 764 function fatal_error_check(transport) {
 765         try {
 766                 if (transport.responseXML) {
 767                         var error = transport.responseXML.getElementsByTagName("error")[0];
 768
 769                         if (error) {
 770                                 var code = error.getAttribute("error-code");
 771                                 var msg = error.getAttribute("error-msg");
 772                                 if (code != 0) {
 773                                         fatal_error(code, msg);
 774                                         return false;
 775                                 }
 776                         }
 777                 }
 778         } catch (e) {
 779                 exception_error("fatal_error_check", e);
 780         }
 781         return true;
 782 }
 783
 784 function update_title(unread) {
 785         try {
 786                 document.title = "Tiny Tiny RSS";
 787
 788                 if (unread > 0)
 789                         document.title += " (" + unread + ")";
 790
 791         } catch (e) {
 792                 exception_error("update_title", e);
 793         }
 794 }
 795
 796 function tweet_article(id) {
 797         try {
 798
 799                 var query = "?op=rpc&subop=getTweetInfo&id=" + param_escape(id);
 800
 801                 console.log(query);
 802
 803                 var d = new Date();
 804       var ts = d.getTime();
 805
 806                 var w = window.open('backend.php?op=loading', 'ttrss_tweet',
 807                         "status=0,toolbar=0,location=0,width=500,height=400,scrollbars=1,menubar=0");
 808
 809                 new Ajax.Request("backend.php", {
 810                         parameters: query,
 811                         onComplete: function(transport) {
 812                                 var ti = JSON.parse(transport.responseText);
 813
 814                                 var share_url = "http://twitter.com/share?_=" + ts +
 815                                         "&text=" + param_escape(ti.title) +
 816                                         "&url=" + param_escape(ti.link);
 817
 818                                 w.location.href = share_url;
 819
 820                         } });
 821
 822         } catch (e) {
 823                 exception_error("tweet_article", e);
 824         }
 825 }
 826
 827 function toggle_select_article(elem) {
 828         try {
 829                 var article = elem.parentNode;
 830
 831                 if (article.hasClassName("selected"))
 832                         article.removeClassName("selected");
 833                 else
 834                         article.addClassName("selected");
 835
 836         } catch (e) {
 837                 exception_error("toggle_select_article", e);
 838         }
 839 }