functions.js

   1 var hotkeys_enabled = true;
   2 var notify_silent = false;
   3 var last_progress_point = 0;
   4 var async_counters_work = false;
   5
   6 /* add method to remove element from array */
   7
   8 Array.prototype.remove = function(s) {
   9         for (var i=0; i < this.length; i++) {
  10                 if (s == this[i]) this.splice(i, 1);
  11         }
  12 }
  13
  14 function is_opera() {
  15         return window.opera;
  16 }
  17
  18 function exception_error(location, e, ext_info) {
  19         var msg = format_exception_error(location, e);
  20
  21         if (!ext_info) ext_info = "N/A";
  22
  23         disableHotkeys();
  24
  25         try {
  26
  27                 var ebc = $("xebContent");
  28
  29                 if (ebc) {
  30
  31                         Element.show("dialog_overlay");
  32                         Element.show("errorBoxShadow");
  33
  34                         if (ext_info) {
  35                                 if (ext_info.responseText) {
  36                                         ext_info = ext_info.responseText;
  37                                 }
  38                         }
  39
  40                         ebc.innerHTML =
  41                                 "<div><b>Error message:</b></div>" +
  42                                 "<pre>" + msg + "</pre>" +
  43                                 "<div><b>Additional information:</b></div>" +
  44                                 "<textarea readonly=\"1\">" + ext_info + "</textarea>";
  45
  46                 } else {
  47                         alert(msg);
  48                 }
  49
  50         } catch (e) {
  51                 alert(msg);
  52
  53         }
  54
  55 }
  56
  57 function format_exception_error(location, e) {
  58         var msg;
  59
  60         if (e.fileName) {
  61                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  62
  63                 msg = "Exception: " + e.name + ", " + e.message +
  64                         "\nFunction: " + location + "()" +
  65                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  66
  67         } else if (e.description) {
  68                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
  69         } else {
  70                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  71         }
  72
  73         debug("<b>EXCEPTION: " + msg + "</b>");
  74
  75         return msg;
  76 }
  77
  78
  79 function disableHotkeys() {
  80         hotkeys_enabled = false;
  81 }
  82
  83 function enableHotkeys() {
  84         hotkeys_enabled = true;
  85 }
  86
  87 function param_escape(arg) {
  88         if (typeof encodeURIComponent != 'undefined')
  89                 return encodeURIComponent(arg);
  90         else
  91                 return escape(arg);
  92 }
  93
  94 function param_unescape(arg) {
  95         if (typeof decodeURIComponent != 'undefined')
  96                 return decodeURIComponent(arg);
  97         else
  98                 return unescape(arg);
  99 }
 100
 101 function delay(gap) {
 102         var then,now;
 103         then=new Date().getTime();
 104         now=then;
 105         while((now-then)<gap) {
 106                 now=new Date().getTime();
 107         }
 108 }
 109
 110 var notify_hide_timerid = false;
 111
 112 function hide_notify() {
 113         var n = $("notify");
 114         if (n) {
 115                 n.style.display = "none";
 116         }
 117 }
 118
 119 function notify_silent_next() {
 120         notify_silent = true;
 121 }
 122
 123 function notify_real(msg, no_hide, n_type) {
 124
 125         if (notify_silent) {
 126                 notify_silent = false;
 127                 return;
 128         }
 129
 130         var n = $("notify");
 131         var nb = $("notify_body");
 132
 133         if (!n || !nb) return;
 134
 135         if (notify_hide_timerid) {
 136                 window.clearTimeout(notify_hide_timerid);
 137         }
 138
 139         if (msg == "") {
 140                 if (n.style.display == "block") {
 141                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 142                 }
 143                 return;
 144         } else {
 145                 n.style.display = "block";
 146         }
 147
 148         /* types:
 149
 150                 1 - generic
 151                 2 - progress
 152                 3 - error
 153                 4 - info
 154
 155         */
 156
 157         if (typeof __ != 'undefined') {
 158                 msg = __(msg);
 159         }
 160
 161         if (n_type == 1) {
 162                 n.className = "notify";
 163         } else if (n_type == 2) {
 164                 n.className = "notifyProgress";
 165                 msg = "<img src='images/indicator_white.gif'> " + msg;
 166         } else if (n_type == 3) {
 167                 n.className = "notifyError";
 168                 msg = "<img src='images/sign_excl.gif'> " + msg;
 169         } else if (n_type == 4) {
 170                 n.className = "notifyInfo";
 171                 msg = "<img src='images/sign_info.gif'> " + msg;
 172         }
 173
 174 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 175
 176         nb.innerHTML = msg;
 177
 178         if (!no_hide) {
 179                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 180         }
 181 }
 182
 183 function notify(msg, no_hide) {
 184         notify_real(msg, no_hide, 1);
 185 }
 186
 187 function notify_progress(msg, no_hide) {
 188         notify_real(msg, no_hide, 2);
 189 }
 190
 191 function notify_error(msg, no_hide) {
 192         notify_real(msg, no_hide, 3);
 193
 194 }
 195
 196 function notify_info(msg, no_hide) {
 197         notify_real(msg, no_hide, 4);
 198 }
 199
 200 function printLockingError() {
 201         notify_info("Please wait until operation finishes.");
 202 }
 203
 204 function cleanSelected(element) {
 205         var content = $(element);
 206
 207         for (i = 0; i < content.rows.length; i++) {
 208                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 209         }
 210 }
 211
 212 function getVisibleUnreadHeadlines() {
 213         var content = $("headlinesList");
 214
 215         var rows = new Array();
 216
 217         if (!content) return rows;
 218
 219         for (i = 0; i < content.rows.length; i++) {
 220                 var row_id = content.rows[i].id.replace("RROW-", "");
 221                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 222                                 rows.push(row_id);
 223                 }
 224         }
 225         return rows;
 226 }
 227
 228 function getVisibleHeadlineIds() {
 229
 230         var content = $("headlinesList");
 231
 232         var rows = new Array();
 233
 234         if (!content) return rows;
 235
 236         for (i = 0; i < content.rows.length; i++) {
 237                 var row_id = content.rows[i].id.replace("RROW-", "");
 238                 if (row_id.length > 0) {
 239                                 rows.push(row_id);
 240                 }
 241         }
 242         return rows;
 243 }
 244
 245 function getFirstVisibleHeadlineId() {
 246         if (isCdmMode()) {
 247                 var rows = cdmGetVisibleArticles();
 248                 return rows[0];
 249         } else {
 250                 var rows = getVisibleHeadlineIds();
 251                 return rows[0];
 252         }
 253 }
 254
 255 function getLastVisibleHeadlineId() {
 256         if (isCdmMode()) {
 257                 var rows = cdmGetVisibleArticles();
 258                 return rows[rows.length-1];
 259         } else {
 260                 var rows = getVisibleHeadlineIds();
 261                 return rows[rows.length-1];
 262         }
 263 }
 264
 265 function markHeadline(id) {
 266         var row = $("RROW-" + id);
 267         if (row) {
 268                 var is_active = false;
 269
 270                 if (row.className.match("Active")) {
 271                         is_active = true;
 272                 }
 273                 row.className = row.className.replace("Selected", "");
 274                 row.className = row.className.replace("Active", "");
 275                 row.className = row.className.replace("Insensitive", "");
 276
 277                 if (is_active) {
 278                         row.className = row.className = "Active";
 279                 }
 280
 281                 var check = $("RCHK-" + id);
 282
 283                 if (check) {
 284                         check.checked = true;
 285                 }
 286
 287                 row.className = row.className + "Selected";
 288
 289         }
 290 }
 291
 292 function getFeedIds() {
 293         var content = $("feedsList");
 294
 295         var rows = new Array();
 296
 297         for (i = 0; i < content.rows.length; i++) {
 298                 var id = content.rows[i].id.replace("FEEDR-", "");
 299                 if (id.length > 0) {
 300                         rows.push(id);
 301                 }
 302         }
 303
 304         return rows;
 305 }
 306
 307 function setCookie(name, value, lifetime, path, domain, secure) {
 308
 309         var d = false;
 310
 311         if (lifetime) {
 312                 d = new Date();
 313                 d.setTime(d.getTime() + (lifetime * 1000));
 314         }
 315
 316         debug("setCookie: " + name + " => " + value + ": " + d);
 317
 318         int_setCookie(name, value, d, path, domain, secure);
 319
 320 }
 321
 322 function int_setCookie(name, value, expires, path, domain, secure) {
 323         document.cookie= name + "=" + escape(value) +
 324                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 325                 ((path) ? "; path=" + path : "") +
 326                 ((domain) ? "; domain=" + domain : "") +
 327                 ((secure) ? "; secure" : "");
 328 }
 329
 330 function delCookie(name, path, domain) {
 331         if (getCookie(name)) {
 332                 document.cookie = name + "=" +
 333                 ((path) ? ";path=" + path : "") +
 334                 ((domain) ? ";domain=" + domain : "" ) +
 335                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 336         }
 337 }
 338
 339
 340 function getCookie(name) {
 341
 342         var dc = document.cookie;
 343         var prefix = name + "=";
 344         var begin = dc.indexOf("; " + prefix);
 345         if (begin == -1) {
 346             begin = dc.indexOf(prefix);
 347             if (begin != 0) return null;
 348         }
 349         else {
 350             begin += 2;
 351         }
 352         var end = document.cookie.indexOf(";", begin);
 353         if (end == -1) {
 354             end = dc.length;
 355         }
 356         return unescape(dc.substring(begin + prefix.length, end));
 357 }
 358
 359 function disableContainerChildren(id, disable, doc) {
 360
 361         if (!doc) doc = document;
 362
 363         var container = $(id);
 364
 365         if (!container) {
 366                 //alert("disableContainerChildren: element " + id + " not found");
 367                 return;
 368         }
 369
 370         for (var i = 0; i < container.childNodes.length; i++) {
 371                 var child = container.childNodes[i];
 372
 373                 try {
 374                         child.disabled = disable;
 375                 } catch (E) {
 376
 377                 }
 378
 379                 if (disable) {
 380                         if (child.className && child.className.match("button")) {
 381                                 child.className = "disabledButton";
 382                         }
 383                 } else {
 384                         if (child.className && child.className.match("disabledButton")) {
 385                                 child.className = "button";
 386                         }
 387                 }
 388         }
 389
 390 }
 391
 392 function gotoPreferences() {
 393         document.location.href = "prefs.php";
 394 }
 395
 396 function gotoMain() {
 397         document.location.href = "tt-rss.php";
 398 }
 399
 400 function gotoExportOpml() {
 401         document.location.href = "opml.php?op=Export";
 402 }
 403
 404 function parse_counters(reply, scheduled_call) {
 405         try {
 406
 407                 var feeds_found = 0;
 408
 409                 var elems = reply.getElementsByTagName("counter");
 410
 411                 for (var l = 0; l < elems.length; l++) {
 412
 413                         var id = elems[l].getAttribute("id");
 414                         var t = elems[l].getAttribute("type");
 415                         var ctr = elems[l].getAttribute("counter");
 416                         var error = elems[l].getAttribute("error");
 417                         var has_img = elems[l].getAttribute("hi");
 418                         var updated = elems[l].getAttribute("updated");
 419                         var title = elems[l].getAttribute("title");
 420                         var xmsg = elems[l].getAttribute("xmsg");
 421
 422                         if (id == "global-unread") {
 423
 424                                 if (ctr > global_unread) {
 425                                         offlineDownloadStart(1);
 426                                 }
 427
 428                                 global_unread = ctr;
 429                                 updateTitle();
 430                                 continue;
 431                         }
 432
 433                         if (id == "subscribed-feeds") {
 434                                 feeds_found = ctr;
 435                                 continue;
 436                         }
 437
 438                         if (t == "category") {
 439                                 var catctr = $("FCATCTR-" + id);
 440                                 if (catctr) {
 441                                         catctr.innerHTML = "(" + ctr + ")";
 442                                         if (ctr > 0) {
 443                                                 catctr.className = "catCtrHasUnread";
 444                                         } else {
 445                                                 catctr.className = "catCtrNoUnread";
 446                                         }
 447                                 }
 448                                 continue;
 449                         }
 450
 451                         var feedctr = $("FEEDCTR-" + id);
 452                         var feedu = $("FEEDU-" + id);
 453                         var feedr = $("FEEDR-" + id);
 454                         var feed_img = $("FIMG-" + id);
 455                         var feedlink = $("FEEDL-" + id);
 456                         var feedupd = $("FLUPD-" + id);
 457
 458                         if (updated && feedlink) {
 459                                 if (error) {
 460                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 461                                 } else {
 462                                         feedlink.title = "Updated: " + updated;
 463                                 }
 464                         }
 465
 466                         if (feedupd) {
 467                                 if (!updated) updated = "";
 468
 469                                 if (error) {
 470                                         if (xmsg) {
 471                                                 feedupd.innerHTML = updated + " " + xmsg + " (Error)";
 472                                         } else {
 473                                                 feedupd.innerHTML = updated + " (Error)";
 474                                         }
 475                                 } else {
 476                                         if (xmsg) {
 477                                                 feedupd.innerHTML = updated + " " + xmsg;
 478                                         } else {
 479                                                 feedupd.innerHTML = updated;
 480                                         }
 481                                 }
 482                         }
 483
 484                         if (has_img && feed_img) {
 485                                 if (!feed_img.src.match(id + ".ico")) {
 486                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 487                                 }
 488                         }
 489
 490                         if (feedlink && title) {
 491                                 feedlink.innerHTML = title;
 492                         }
 493
 494                         if (feedctr && feedu && feedr) {
 495
 496                                 if (parseInt(ctr) > 0 &&
 497                                                 parseInt(feedu.innerHTML) < parseInt(ctr) &&
 498                                                 id == getActiveFeedId() && scheduled_call) {
 499
 500                                         displayNewContentPrompt(id);
 501                                 }
 502
 503                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 504
 505                                 feedu.innerHTML = ctr;
 506
 507                                 if (error) {
 508                                         feedr.className = feedr.className.replace("feed", "error");
 509                                 } else if (id > 0) {
 510                                         feedr.className = feedr.className.replace("error", "feed");
 511                                 }
 512
 513                                 if (ctr > 0) {
 514                                         feedctr.className = "feedCtrHasUnread";
 515                                         if (!feedr.className.match("Unread")) {
 516                                                 var is_selected = feedr.className.match("Selected");
 517
 518                                                 feedr.className = feedr.className.replace("Selected", "");
 519                                                 feedr.className = feedr.className.replace("Unread", "");
 520
 521                                                 feedr.className = feedr.className + "Unread";
 522
 523                                                 if (is_selected) {
 524                                                         feedr.className = feedr.className + "Selected";
 525                                                 }
 526
 527                                         }
 528
 529                                         if (row_needs_hl && getInitParam("theme") != 'neon') {
 530                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 531                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 532
 533                                                 cache_invalidate("F:" + id);
 534                                         }
 535                                 } else {
 536                                         feedctr.className = "feedCtrNoUnread";
 537                                         feedr.className = feedr.className.replace("Unread", "");
 538                                 }
 539                         }
 540                 }
 541
 542                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 543
 544                 var feeds_stored = number_of_feeds;
 545
 546                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 547
 548                 if (feeds_stored != feeds_found) {
 549                         number_of_feeds = feeds_found;
 550
 551                         if (feeds_stored != 0 && feeds_found != 0) {
 552                                 debug("Subscribed feed number changed, refreshing feedlist");
 553                                 setTimeout('updateFeedList(false, false)', 50);
 554                         }
 555                 } else {
 556 /*                      var fl = $("feeds-frame").innerHTML;
 557                         if (fl) {
 558                                 cache_invalidate("FEEDLIST");
 559                                 cache_inject("FEEDLIST", fl, getInitParam("num_feeds"));
 560                         } */
 561                 }
 562
 563         } catch (e) {
 564                 exception_error("parse_counters", e);
 565         }
 566 }
 567
 568 function parse_counters_reply(transport, scheduled_call) {
 569
 570         if (!transport.responseXML) {
 571                 notify_error("Backend did not return valid XML", true);
 572                 return;
 573         }
 574
 575         var reply = transport.responseXML.firstChild;
 576
 577         if (!reply) {
 578                 notify_error("Backend did not return expected XML object", true);
 579                 updateTitle("");
 580                 return;
 581         }
 582
 583         if (!transport_error_check(transport)) return;
 584
 585         var counters = reply.getElementsByTagName("counters")[0];
 586
 587         parse_counters(counters, scheduled_call);
 588
 589         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 590
 591         parse_runtime_info(runtime_info);
 592
 593         if (feedsSortByUnread()) {
 594                 resort_feedlist();
 595         }
 596
 597         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 598
 599 }
 600
 601 function all_counters_callback2(transport, async_call) {
 602         try {
 603                 if (async_call) async_counters_work = true;
 604
 605                 if (offline_mode) return;
 606
 607                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 608                 parse_counters_reply(transport);
 609                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 610
 611         } catch (e) {
 612                 exception_error("all_counters_callback2", e, transport);
 613         }
 614 }
 615
 616 function get_feed_unread(id) {
 617         try {
 618                 return parseInt($("FEEDU-" + id).innerHTML);
 619         } catch (e) {
 620                 return -1;
 621         }
 622 }
 623
 624 function get_cat_unread(id) {
 625         try {
 626                 var ctr = $("FCATCTR-" + id).innerHTML;
 627                 ctr = ctr.replace("(", "");
 628                 ctr = ctr.replace(")", "");
 629                 return parseInt(ctr);
 630         } catch (e) {
 631                 return -1;
 632         }
 633 }
 634
 635 function get_feed_entry_unread(elem) {
 636
 637         var id = elem.id.replace("FEEDR-", "");
 638
 639         if (id <= 0) {
 640                 return -1;
 641         }
 642
 643         try {
 644                 return parseInt($("FEEDU-" + id).innerHTML);
 645         } catch (e) {
 646                 return -1;
 647         }
 648 }
 649
 650 function get_feed_entry_name(elem) {
 651         var id = elem.id.replace("FEEDR-", "");
 652         return getFeedName(id);
 653 }
 654
 655
 656 function resort_category(node, cat_mode) {
 657
 658         try {
 659
 660                 debug("resort_category: " + node + " CM=" + cat_mode);
 661
 662                 var by_unread = feedsSortByUnread();
 663
 664                 var list = node.getElementsByTagName("LI");
 665
 666                 for (i = 0; i < list.length; i++) {
 667
 668                         for (j = i+1; j < list.length; j++) {
 669
 670                                 var tmp_val = get_feed_entry_unread(list[i]);
 671                                 var cur_val = get_feed_entry_unread(list[j]);
 672
 673                                 var tmp_name = get_feed_entry_name(list[i]);
 674                                 var cur_name = get_feed_entry_name(list[j]);
 675
 676                                 var valid_pair = cat_mode || (list[i].id.match(/FEEDR-[0-9]/) &&
 677                                                 list[j].id.match(/FEEDR-[0-9]/));
 678
 679                                 if (valid_pair && ((by_unread && (cur_val > tmp_val)) || (!by_unread && (cur_name < tmp_name)))) {
 680                                         tempnode_i = list[i].cloneNode(true);
 681                                         tempnode_j = list[j].cloneNode(true);
 682                                         node.replaceChild(tempnode_i, list[j]);
 683                                         node.replaceChild(tempnode_j, list[i]);
 684                                 }
 685                         }
 686                 }
 687
 688         } catch (e) {
 689                 exception_error("resort_category", e);
 690         }
 691
 692 }
 693
 694 function resort_feedlist() {
 695         debug("resort_feedlist");
 696
 697         if ($("FCATLIST--1")) {
 698
 699                 var lists = document.getElementsByTagName("UL");
 700
 701                 for (var i = 0; i < lists.length; i++) {
 702                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 703                                 resort_category(lists[i], true);
 704                         }
 705                 }
 706
 707         } else {
 708                 resort_category($("feedList"), false);
 709         }
 710 }
 711
 712 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 713   * * @author Sundar Dorai-Raj
 714   * * Email: sdoraira@vt.edu
 715   * * This program is free software; you can redistribute it and/or
 716   * * modify it under the terms of the GNU General Public License
 717   * * as published by the Free Software Foundation; either version 2
 718   * * of the License, or (at your option) any later version,
 719   * * provided that any use properly credits the author.
 720   * * This program is distributed in the hope that it will be useful,
 721   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 722   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 723   * * GNU General Public License for more details at http://www.gnu.org * * */
 724
 725   var numbers=".0123456789";
 726   function isNumeric(x) {
 727     // is x a String or a character?
 728     if(x.length>1) {
 729       // remove negative sign
 730       x=Math.abs(x)+"";
 731       for(j=0;j<x.length;j++) {
 732         // call isNumeric recursively for each character
 733         number=isNumeric(x.substring(j,j+1));
 734         if(!number) return number;
 735       }
 736       return number;
 737     }
 738     else {
 739       // if x is number return true
 740       if(numbers.indexOf(x)>=0) return true;
 741       return false;
 742     }
 743   }
 744
 745
 746 function hideOrShowFeeds(hide) {
 747
 748         try {
 749
 750         debug("hideOrShowFeeds: " + hide);
 751
 752         if ($("FCATLIST--1")) {
 753
 754                 var lists = document.getElementsByTagName("UL");
 755
 756                 for (var i = 0; i < lists.length; i++) {
 757                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 758
 759                                 var id = lists[i].id.replace("FCATLIST-", "");
 760                                 hideOrShowFeedsCategory(id, hide);
 761                         }
 762                 }
 763
 764         } else {
 765                 hideOrShowFeedsCategory(null, hide);
 766         }
 767
 768         } catch (e) {
 769                 exception_error("hideOrShowFeeds", e);
 770         }
 771 }
 772
 773 function hideOrShowFeedsCategory(id, hide) {
 774
 775         try {
 776
 777                 var node = null;
 778                 var cat_node = null;
 779
 780                 if (id) {
 781                         node = $("FCATLIST-" + id);
 782                         cat_node = $("FCAT-" + id);
 783                 } else {
 784                         node = $("feedList"); // no categories
 785                 }
 786
 787         //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 788
 789                 var cat_unread = 0;
 790
 791                 if (!node) {
 792                         debug("hideOrShowFeeds: passed node is null, aborting");
 793                         return;
 794                 }
 795
 796         //      debug("cat: " + node.id);
 797
 798                 if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 799                         for (i = 0; i < node.childNodes.length; i++) {
 800                                 if (node.childNodes[i].nodeName != "LI") { continue; }
 801
 802                                 if (node.childNodes[i].style != undefined) {
 803
 804                                         var has_unread = (node.childNodes[i].className != "feed" &&
 805                                                 node.childNodes[i].className != "label" &&
 806                                                 !(!getInitParam("hide_read_shows_special") &&
 807                                                         node.childNodes[i].className == "virt") &&
 808                                                 node.childNodes[i].className != "error" &&
 809                                                 node.childNodes[i].className != "tag");
 810
 811         //                              debug(node.childNodes[i].id + " --> " + has_unread);
 812
 813                                         if (hide && !has_unread) {
 814                                                 //node.childNodes[i].style.display = "none";
 815                                                 var id = node.childNodes[i].id;
 816                                                 Effect.Fade(node.childNodes[i], {duration : 0.3,
 817                                                         queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 818                                         }
 819
 820                                         if (!hide) {
 821                                                 node.childNodes[i].style.display = "list-item";
 822                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 823                                         }
 824
 825                                         if (has_unread) {
 826                                                 node.childNodes[i].style.display = "list-item";
 827                                                 cat_unread++;
 828                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 829                                                 //Effect.Highlight(node.childNodes[i]);
 830                                         }
 831                                 }
 832                         }
 833                 }
 834
 835         //      debug("end cat: " + node.id + " unread " + cat_unread);
 836
 837                 if (cat_node) {
 838
 839                         if (cat_unread == 0) {
 840                                 if (cat_node.style == undefined) {
 841                                         debug("ERROR: supplied cat_node " + cat_node +
 842                                                 " has no styles. WTF?");
 843                                         return;
 844                                 }
 845                                 if (hide) {
 846                                         //cat_node.style.display = "none";
 847                                         Effect.Fade(cat_node, {duration : 0.3,
 848                                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 849                                 } else {
 850                                         cat_node.style.display = "list-item";
 851                                 }
 852                         } else {
 853                                 try {
 854                                         cat_node.style.display = "list-item";
 855                                 } catch (e) {
 856                                         debug(e);
 857                                 }
 858                         }
 859                 }
 860
 861 //      debug("unread for category: " + cat_unread);
 862
 863         } catch (e) {
 864                 exception_error("hideOrShowFeedsCategory", e);
 865         }
 866 }
 867
 868 function selectTableRow(r, do_select) {
 869         r.className = r.className.replace("Selected", "");
 870
 871         if (do_select) {
 872                 r.className = r.className + "Selected";
 873         }
 874 }
 875
 876 function selectTableRowById(elem_id, check_id, do_select) {
 877
 878         try {
 879
 880                 var row = $(elem_id);
 881
 882                 if (row) {
 883                         selectTableRow(row, do_select);
 884                 }
 885
 886                 var check = $(check_id);
 887
 888                 if (check) {
 889                         check.checked = do_select;
 890                 }
 891         } catch (e) {
 892                 exception_error("selectTableRowById", e);
 893         }
 894 }
 895
 896 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 897         classcheck, reset_others) {
 898
 899         var content = $(content_id);
 900
 901         if (!content) {
 902                 alert("[selectTableRows] Element " + content_id + " not found.");
 903                 return;
 904         }
 905
 906         for (i = 0; i < content.rows.length; i++) {
 907                 if (Element.visible(content.rows[i])) {
 908                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 909
 910                                 if (content.rows[i].id.match(prefix)) {
 911                                         selectTableRow(content.rows[i], do_select);
 912
 913                                         var row_id = content.rows[i].id.replace(prefix, "");
 914                                         var check = $(check_prefix + row_id);
 915
 916                                         if (check) {
 917                                                 check.checked = do_select;
 918                                         }
 919                                 } else if (reset_others) {
 920                                         selectTableRow(content.rows[i], false);
 921
 922                                         var row_id = content.rows[i].id.replace(prefix, "");
 923                                         var check = $(check_prefix + row_id);
 924
 925                                         if (check) {
 926                                                 check.checked = false;
 927                                         }
 928
 929                                 }
 930                         } else if (reset_others) {
 931                                 selectTableRow(content.rows[i], false);
 932
 933                                 var row_id = content.rows[i].id.replace(prefix, "");
 934                                 var check = $(check_prefix + row_id);
 935
 936                                 if (check) {
 937                                         check.checked = false;
 938                                 }
 939
 940                         }
 941                 }
 942         }
 943 }
 944
 945 function getSelectedTableRowIds(content_id, prefix) {
 946
 947         var content = $(content_id);
 948
 949         if (!content) {
 950                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 951                 return;
 952         }
 953
 954         var sel_rows = new Array();
 955
 956         for (i = 0; i < content.rows.length; i++) {
 957                 if (content.rows[i].id.match(prefix) &&
 958                                 content.rows[i].className.match("Selected")) {
 959
 960                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 961                         sel_rows.push(row_id);
 962                 }
 963         }
 964
 965         return sel_rows;
 966
 967 }
 968
 969 function toggleSelectRowById(sender, id) {
 970         var row = $(id);
 971
 972         if (sender.checked) {
 973                 if (!row.className.match("Selected")) {
 974                         row.className = row.className + "Selected";
 975                 }
 976         } else {
 977                 if (row.className.match("Selected")) {
 978                         row.className = row.className.replace("Selected", "");
 979                 }
 980         }
 981 }
 982
 983 function toggleSelectListRow(sender) {
 984         var parent_row = sender.parentNode;
 985
 986         if (sender.checked) {
 987                 if (!parent_row.className.match("Selected")) {
 988                         parent_row.className = parent_row.className + "Selected";
 989                 }
 990         } else {
 991                 if (parent_row.className.match("Selected")) {
 992                         parent_row.className = parent_row.className.replace("Selected", "");
 993                 }
 994         }
 995 }
 996
 997 function tSR(sender) {
 998         return toggleSelectRow(sender);
 999 }
1000
1001 function toggleSelectRow(sender) {
1002         var parent_row = sender.parentNode.parentNode;
1003
1004         if (sender.checked) {
1005                 if (!parent_row.className.match("Selected")) {
1006                         parent_row.className = parent_row.className + "Selected";
1007                 }
1008         } else {
1009                 if (parent_row.className.match("Selected")) {
1010                         parent_row.className = parent_row.className.replace("Selected", "");
1011                 }
1012         }
1013 }
1014
1015 function getNextUnreadCat(id) {
1016         try {
1017                 var rows = $("feedList").getElementsByTagName("LI");
1018                 var feeds = new Array();
1019
1020                 var unread_only = true;
1021                 var is_cat = true;
1022
1023                 for (var i = 0; i < rows.length; i++) {
1024                         if (rows[i].id.match("FCAT-")) {
1025                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1026
1027                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1028
1029                                         if (cat_id >= 0) {
1030                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1031                                                         feeds.push(cat_id);
1032                                                 }
1033                                         }
1034                                 }
1035                         }
1036                 }
1037
1038                 var idx = feeds.indexOf(id);
1039                 if (idx != -1 && idx < feeds.length) {
1040                         return feeds[idx+1];
1041                 } else {
1042                         return feeds.shift();
1043                 }
1044
1045         } catch (e) {
1046                 exception_error("getNextUnreadCat", e);
1047         }
1048 }
1049
1050 function getRelativeFeedId2(id, is_cat, direction, unread_only) {
1051         try {
1052
1053 //              alert(id + " IC: " + is_cat + " D: " + direction + " U: " + unread_only);
1054
1055                 var rows = $("feedList").getElementsByTagName("LI");
1056                 var feeds = new Array();
1057
1058                 for (var i = 0; i < rows.length; i++) {
1059                         if (rows[i].id.match("FEEDR-")) {
1060
1061                                 if (rows[i].id == "FEEDR-" + id && !is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1062
1063                                         if (!unread_only ||
1064                                                         (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1065                                                 feeds.push(rows[i].id.replace("FEEDR-", ""));
1066                                         }
1067                                 }
1068                         }
1069
1070                         if (rows[i].id.match("FCAT-")) {
1071                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1072
1073                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1074
1075                                         if (cat_id >= 0) {
1076                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1077                                                         feeds.push("CAT:"+cat_id);
1078                                                 }
1079                                         }
1080                                 }
1081                         }
1082                 }
1083
1084 //              alert(feeds.toString());
1085
1086                 if (!id) {
1087                         if (direction == "next") {
1088                                 return feeds.shift();
1089                         } else {
1090                                 return feeds.pop();
1091                         }
1092                 } else {
1093                         if (direction == "next") {
1094                                 if (is_cat) id = "CAT:" + id;
1095                                 var idx = feeds.indexOf(id);
1096                                 if (idx != -1 && idx < feeds.length) {
1097                                         return feeds[idx+1];
1098                                 } else {
1099                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1100                                 }
1101                         } else {
1102                                 if (is_cat) id = "CAT:" + id;
1103                                 var idx = feeds.indexOf(id);
1104                                 if (idx > 0) {
1105                                         return feeds[idx-1];
1106                                 } else {
1107                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1108                                 }
1109                         }
1110
1111                 }
1112
1113         } catch (e) {
1114                 exception_error("getRelativeFeedId2", e);
1115         }
1116 }
1117
1118
1119 function getRelativeFeedId(list, id, direction, unread_only) {
1120         var rows = list.getElementsByTagName("LI");
1121         var feeds = new Array();
1122
1123         for (var i = 0; i < rows.length; i++) {
1124                 if (rows[i].id.match("FEEDR-")) {
1125
1126                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1127
1128                                 if (!unread_only ||
1129                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1130                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1131                                 }
1132                         }
1133                 }
1134         }
1135
1136         if (!id) {
1137                 if (direction == "next") {
1138                         return feeds.shift();
1139                 } else {
1140                         return feeds.pop();
1141                 }
1142         } else {
1143                 if (direction == "next") {
1144                         var idx = feeds.indexOf(id);
1145                         if (idx != -1 && idx < feeds.length) {
1146                                 return feeds[idx+1];
1147                         } else {
1148                                 return getRelativeFeedId(list, false, direction, unread_only);
1149                         }
1150                 } else {
1151                         var idx = feeds.indexOf(id);
1152                         if (idx > 0) {
1153                                 return feeds[idx-1];
1154                         } else {
1155                                 return getRelativeFeedId(list, false, direction, unread_only);
1156                         }
1157                 }
1158
1159         }
1160 }
1161
1162 function showBlockElement(id, h_id) {
1163         var elem = $(id);
1164
1165         if (elem) {
1166                 elem.style.display = "block";
1167
1168                 if (h_id) {
1169                         elem = $(h_id);
1170                         if (elem) {
1171                                 elem.style.display = "none";
1172                         }
1173                 }
1174         } else {
1175                 alert("[showBlockElement] can't find element with id " + id);
1176         }
1177 }
1178
1179 function appearBlockElement_afh(effect) {
1180
1181 }
1182
1183 function checkboxToggleElement(elem, id) {
1184         if (elem.checked) {
1185                 Effect.Appear(id, {duration : 0.5});
1186         } else {
1187                 Effect.Fade(id, {duration : 0.5});
1188         }
1189 }
1190
1191 function appearBlockElement(id, h_id) {
1192
1193         try {
1194                 if (h_id) {
1195                         Effect.Fade(h_id);
1196                 }
1197                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1198         } catch (e) {
1199                 exception_error("appearBlockElement", e);
1200         }
1201
1202 }
1203
1204 function hideParentElement(e) {
1205         e.parentNode.style.display = "none";
1206 }
1207
1208 function dropboxSelect(e, v) {
1209         for (i = 0; i < e.length; i++) {
1210                 if (e[i].value == v) {
1211                         e.selectedIndex = i;
1212                         break;
1213                 }
1214         }
1215 }
1216
1217 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1218 // bugfixed just a little bit :-)
1219 function getURLParam(strParamName){
1220   var strReturn = "";
1221   var strHref = window.location.href;
1222
1223   if (strHref.indexOf("#") == strHref.length-1) {
1224                 strHref = strHref.substring(0, strHref.length-1);
1225   }
1226
1227   if ( strHref.indexOf("?") > -1 ){
1228     var strQueryString = strHref.substr(strHref.indexOf("?"));
1229     var aQueryString = strQueryString.split("&");
1230     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1231       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1232         var aParam = aQueryString[iParam].split("=");
1233         strReturn = aParam[1];
1234         break;
1235       }
1236     }
1237   }
1238   return strReturn;
1239 }
1240
1241 function leading_zero(p) {
1242         var s = String(p);
1243         if (s.length == 1) s = "0" + s;
1244         return s;
1245 }
1246
1247 function closeErrorBox() {
1248
1249         if (Element.visible("errorBoxShadow")) {
1250                 Element.hide("dialog_overlay");
1251                 Element.hide("errorBoxShadow");
1252
1253                 enableHotkeys();
1254         }
1255
1256         return false;
1257 }
1258
1259 function closeInfoBox(cleanup) {
1260
1261         try {
1262                 enableHotkeys();
1263
1264                 if (Element.visible("infoBoxShadow")) {
1265                         Element.hide("dialog_overlay");
1266                         Element.hide("infoBoxShadow");
1267
1268                         if (cleanup) $("infoBoxShadow").innerHTML = "&nbsp;";
1269                 }
1270         } catch (e) {
1271                 exception_error("closeInfoBox", e);
1272         }
1273
1274         return false;
1275 }
1276
1277
1278 function displayDlg(id, param, callback) {
1279
1280         notify_progress("Loading, please wait...", true);
1281
1282         disableHotkeys();
1283
1284         var query = "?op=dlg&id=" +
1285                 param_escape(id) + "&param=" + param_escape(param);
1286
1287         new Ajax.Request("backend.php", {
1288                 parameters: query,
1289                 onComplete: function (transport) {
1290                         infobox_callback2(transport);
1291                         if (callback) callback(transport);
1292                 } });
1293
1294         return false;
1295 }
1296
1297 function infobox_submit_callback2(transport) {
1298         closeInfoBox();
1299
1300         try {
1301                 // called from prefs, reload tab
1302                 if (typeof active_tab != 'undefined' && active_tab) {
1303                         selectTab(active_tab, false);
1304                 }
1305         } catch (e) { }
1306
1307         if (transport.responseText) {
1308                 notify_info(transport.responseText);
1309         }
1310 }
1311
1312 function infobox_callback2(transport) {
1313         try {
1314
1315                 debug("infobox_callback2");
1316
1317                 var box = $('infoBox');
1318
1319                 if (box) {
1320
1321                         if (!getInitParam("infobox_disable_overlay")) {
1322                                 Element.show("dialog_overlay");
1323                         }
1324
1325                         box.innerHTML=transport.responseText;
1326                         Element.show("infoBoxShadow");
1327                         //Effect.SlideDown("infoBoxShadow", {duration : 1.0});
1328
1329
1330                 }
1331
1332                 disableHotkeys();
1333
1334                 notify("");
1335         } catch (e) {
1336                 exception_error("infobox_callback2", e);
1337         }
1338 }
1339
1340 function createFilter() {
1341
1342         try {
1343
1344                 var form = document.forms['filter_add_form'];
1345                 var reg_exp = form.reg_exp.value;
1346
1347                 if (reg_exp == "") {
1348                         alert(__("Can't add filter: nothing to match on."));
1349                         return false;
1350                 }
1351
1352                 var query = Form.serialize("filter_add_form");
1353
1354                 // we can be called from some other tab in Prefs
1355                 if (typeof active_tab != 'undefined' && active_tab) {
1356                         active_tab = "filterConfig";
1357                 }
1358
1359                 new Ajax.Request("backend.php?" + query, {
1360                         onComplete: function (transport) {
1361                                 infobox_submit_callback2(transport);
1362                         } });
1363
1364                 return true;
1365
1366         } catch (e) {
1367                 exception_error("createFilter", e);
1368         }
1369 }
1370
1371 function isValidURL(s) {
1372         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1373 }
1374
1375 function subscribeToFeed() {
1376
1377         try {
1378
1379         var form = document.forms['feed_add_form'];
1380         var feed_url = form.feed_url.value;
1381
1382         if (feed_url == "") {
1383                 alert(__("Can't subscribe: no feed URL given."));
1384                 return false;
1385         }
1386
1387         notify_progress(__("Subscribing to feed..."), true);
1388
1389         var query = Form.serialize("feed_add_form");
1390
1391         debug("subscribe q: " + query);
1392
1393         Form.disable("feed_add_form");
1394
1395         new Ajax.Request("backend.php", {
1396                 parameters: query,
1397                 onComplete: function(transport) {
1398                         //dlg_frefresh_callback(transport);
1399
1400                         notify('');
1401
1402                         var result = transport.responseXML.getElementsByTagName('result')[0];
1403                         var rc = parseInt(result.getAttribute('code'));
1404
1405                         Form.enable("feed_add_form");
1406
1407                         switch (rc) {
1408                         case 1:
1409                                 closeInfoBox();
1410                                 notify_info(__("Subscribed to %s").replace("%s", feed_url));
1411
1412                                 if (inPreferences()) {
1413                                         updateFeedList();
1414                                 } else {
1415                                         setTimeout('updateFeedList(false, false)', 50);
1416                                 }
1417                                 break;
1418                         case 2:
1419                                 alert(__("Can't subscribe to the specified URL."));
1420                                 break;
1421                         case 0:
1422                                 alert(__("You are already subscribed to this feed."));
1423                                 break;
1424                         }
1425
1426                 } });
1427
1428         } catch (e) {
1429                 exception_error("subscribeToFeed", e);
1430         }
1431
1432         return false;
1433 }
1434
1435 function filterCR(e, f)
1436 {
1437      var key;
1438
1439      if(window.event)
1440           key = window.event.keyCode;     //IE
1441      else
1442           key = e.which;     //firefox
1443
1444         if (key == 13) {
1445                 if (typeof f != 'undefined') {
1446                         f();
1447                         return false;
1448                 } else {
1449                         return false;
1450                 }
1451         } else {
1452                 return true;
1453         }
1454 }
1455
1456 var debug_last_class = "even";
1457
1458 function debug(msg) {
1459
1460         if (debug_last_class == "even") {
1461                 debug_last_class = "odd";
1462         } else {
1463                 debug_last_class = "even";
1464         }
1465
1466         var c = $('debug_output');
1467         if (c && Element.visible(c)) {
1468                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1469                         c.removeChild(c.lastChild);
1470                 }
1471
1472                 var d = new Date();
1473                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1474                         ":" + leading_zero(d.getSeconds());
1475                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1476                         msg + "</li>" + c.innerHTML;
1477         }
1478 }
1479
1480 function getInitParam(key) {
1481         return init_params[key];
1482 }
1483
1484 function setInitParam(key, value) {
1485         init_params[key] = value;
1486 }
1487
1488 function fatalError(code, msg, ext_info) {
1489         try {
1490
1491                 if (!ext_info) ext_info = "N/A";
1492
1493                 if (code == 6) {
1494                         window.location.href = "tt-rss.php";
1495                 } else if (code == 5) {
1496                         window.location.href = "update.php";
1497                 } else {
1498
1499                         if (msg == "") msg = "Unknown error";
1500
1501                         var ebc = $("xebContent");
1502
1503                         if (ebc) {
1504
1505                                 Element.show("dialog_overlay");
1506                                 Element.show("errorBoxShadow");
1507                                 Element.hide("xebBtn");
1508
1509                                 if (ext_info) {
1510                                         if (ext_info.responseText) {
1511                                                 ext_info = ext_info.responseText;
1512                                         }
1513                                 }
1514
1515                                 ebc.innerHTML =
1516                                         "<div><b>Error message:</b></div>" +
1517                                         "<pre>" + msg + "</pre>" +
1518                                         "<div><b>Additional information:</b></div>" +
1519                                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
1520                         }
1521                 }
1522
1523         } catch (e) {
1524                 exception_error("fatalError", e);
1525         }
1526 }
1527
1528 function getFeedName(id, is_cat) {
1529         var e;
1530
1531         if (is_cat) {
1532                 e = $("FCATN-" + id);
1533         } else {
1534                 e = $("FEEDN-" + id);
1535         }
1536         if (e) {
1537                 return e.innerHTML.stripTags();
1538         } else {
1539                 return null;
1540         }
1541 }
1542
1543 function filterDlgCheckType(sender) {
1544
1545         try {
1546
1547                 var ftype = sender[sender.selectedIndex].value;
1548
1549                 var form = document.forms["filter_add_form"];
1550
1551                 if (!form) {
1552                         form = document.forms["filter_edit_form"];
1553                 }
1554
1555                 if (!form) {
1556                         debug("filterDlgCheckType: can't find form!");
1557                         return;
1558                 }
1559
1560                 // if selected filter type is 5 (Date) enable the modifier dropbox
1561                 if (ftype == 5) {
1562                         Element.show("filter_dlg_date_mod_box");
1563                         Element.show("filter_dlg_date_chk_box");
1564                 } else {
1565                         Element.hide("filter_dlg_date_mod_box");
1566                         Element.hide("filter_dlg_date_chk_box");
1567
1568                 }
1569
1570         } catch (e) {
1571                 exception_error("filterDlgCheckType", e);
1572         }
1573
1574 }
1575
1576 function filterDlgCheckAction(sender) {
1577
1578         try {
1579
1580                 var action = sender[sender.selectedIndex].value;
1581
1582                 var form = document.forms["filter_add_form"];
1583
1584                 if (!form) {
1585                         form = document.forms["filter_edit_form"];
1586                 }
1587
1588                 if (!form) {
1589                         debug("filterDlgCheckAction: can't find form!");
1590                         return;
1591                 }
1592
1593                 var action_param = $("filter_dlg_param_box");
1594
1595                 if (!action_param) {
1596                         debug("filterDlgCheckAction: can't find action param box!");
1597                         return;
1598                 }
1599
1600                 // if selected action supports parameters, enable params field
1601                 if (action == 4 || action == 6 || action == 7) {
1602                         Element.show(action_param);
1603                         if (action != 7) {
1604                                 Element.show(form.action_param);
1605                                 Element.hide(form.action_param_label);
1606                         } else {
1607                                 Element.show(form.action_param_label);
1608                                 Element.hide(form.action_param);
1609                         }
1610                 } else {
1611                         Element.hide(action_param);
1612                 }
1613
1614         } catch (e) {
1615                 exception_error("filterDlgCheckAction", e);
1616         }
1617
1618 }
1619
1620 function filterDlgCheckDate() {
1621         try {
1622                 var form = document.forms["filter_add_form"];
1623
1624                 if (!form) {
1625                         form = document.forms["filter_edit_form"];
1626                 }
1627
1628                 if (!form) {
1629                         debug("filterDlgCheckAction: can't find form!");
1630                         return;
1631                 }
1632
1633                 var reg_exp = form.reg_exp.value;
1634
1635                 var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
1636
1637                 new Ajax.Request("backend.php", {
1638                         parameters: query,
1639                         onComplete: function(transport) {
1640
1641                                 var form = document.forms["filter_add_form"];
1642
1643                                 if (!form) {
1644                                         form = document.forms["filter_edit_form"];
1645                                 }
1646
1647                                 if (transport.responseXML) {
1648                                         var result = transport.responseXML.getElementsByTagName("result")[0];
1649
1650                                         if (result && result.firstChild) {
1651                                                 if (result.firstChild.nodeValue == "1") {
1652
1653                                                         new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
1654
1655                                                         return;
1656                                                 }
1657                                         }
1658                                 }
1659
1660                                 new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
1661
1662                         } });
1663
1664
1665         } catch (e) {
1666                 exception_error("filterDlgCheckDate", e);
1667         }
1668 }
1669
1670 function explainError(code) {
1671         return displayDlg("explainError", code);
1672 }
1673
1674 // this only searches loaded headlines list, not in CDM
1675 function getRelativePostIds(id, limit) {
1676
1677         if (!limit) limit = 3;
1678
1679         debug("getRelativePostIds: " + id + " limit=" + limit);
1680
1681         var ids = new Array();
1682         var container = $("headlinesList");
1683
1684         if (container) {
1685                 var rows = container.rows;
1686
1687                 for (var i = 0; i < rows.length; i++) {
1688                         var r_id = rows[i].id.replace("RROW-", "");
1689
1690                         if (r_id == id) {
1691                                 for (var k = 1; k <= limit; k++) {
1692                                         var nid = false;
1693
1694                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1695                                         if (nid) ids.push(nid);
1696
1697                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1698                                         if (nid) ids.push(nid);
1699                                 }
1700
1701                                 return ids;
1702                         }
1703                 }
1704         }
1705
1706         return false;
1707 }
1708
1709 function openArticleInNewWindow(id) {
1710         try {
1711                 debug("openArticleInNewWindow: " + id);
1712
1713                 var query = "?op=rpc&subop=getArticleLink&id=" + id;
1714                 var wname = "ttrss_article_" + id;
1715
1716                 debug(query + " " + wname);
1717
1718                 var w = window.open("", wname);
1719
1720                 if (!w) notify_error("Failed to open window for the article");
1721
1722                 new Ajax.Request("backend.php", {
1723                         parameters: query,
1724                         onComplete: function(transport) {
1725
1726                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1727                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1728
1729                                         debug("open_article received link: " + link);
1730
1731                                         if (link && id) {
1732
1733                                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
1734
1735                                                 debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
1736
1737                                                 var w = window.open(link.firstChild.nodeValue, wname);
1738
1739                                                 if (!w) { notify_error("Failed to load article in new window"); }
1740
1741                                                 if (id) {
1742                                                         id = id.firstChild.nodeValue;
1743                                                         if (!$("headlinesList")) {
1744                                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
1745                                                         }
1746                                                 }
1747                                         } else {
1748                                                 notify_error("Can't open article: received invalid article link");
1749                                         }
1750                                 } });
1751
1752         } catch (e) {
1753                 exception_error("openArticleInNewWindow", e);
1754         }
1755 }
1756
1757 /* http://textsnippets.com/posts/show/835 */
1758
1759 Position.GetWindowSize = function(w) {
1760         w = w ? w : window;
1761         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1762         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1763         return [width, height]
1764 }
1765
1766 /* http://textsnippets.com/posts/show/836 */
1767
1768 Position.Center = function(element, parent) {
1769         var w, h, pw, ph;
1770         var d = Element.getDimensions(element);
1771         w = d.width;
1772         h = d.height;
1773         Position.prepare();
1774         if (!parent) {
1775                 var ws = Position.GetWindowSize();
1776                 pw = ws[0];
1777                 ph = ws[1];
1778         } else {
1779                 pw = parent.offsetWidth;
1780                 ph = parent.offsetHeight;
1781         }
1782         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1783         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1784 }
1785
1786
1787 function isCdmMode() {
1788         return !$("headlinesList");
1789 }
1790
1791 function getSelectedArticleIds2() {
1792         var rows = new Array();
1793         var cdm_mode = isCdmMode();
1794
1795         if (cdm_mode) {
1796                 rows = cdmGetSelectedArticles();
1797         } else {
1798                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1799         }
1800
1801         var ids = new Array();
1802
1803         for (var i = 0; i < rows.length; i++) {
1804                 var chk = $("RCHK-" + rows[i]);
1805                 if (chk && chk.checked) {
1806                         ids.push(rows[i]);
1807                 }
1808         }
1809
1810         return ids;
1811 }
1812
1813 function displayHelpInfobox(topic_id) {
1814
1815         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1816
1817         var w = window.open(url, "ttrss_help",
1818                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1819
1820 }
1821
1822 function focus_element(id) {
1823         try {
1824                 var e = $(id);
1825                 if (e) e.focus();
1826         } catch (e) {
1827                 exception_error("focus_element", e);
1828         }
1829         return false;
1830 }
1831
1832 function loading_set_progress(p) {
1833         try {
1834                 if (p < last_progress_point || !Element.visible("overlay")) return;
1835
1836                 debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
1837
1838                 var o = $("l_progress_i");
1839
1840 //              o.style.width = (p * 2) + "px";
1841
1842                 new Effect.Scale(o, p, {
1843                         scaleY : false,
1844                         scaleFrom : last_progress_point,
1845                         scaleMode: { originalWidth : 200 },
1846                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1847
1848                 last_progress_point = p;
1849
1850         } catch (e) {
1851                 exception_error("loading_set_progress", e);
1852         }
1853 }
1854
1855 function remove_splash() {
1856         if (Element.visible("overlay")) {
1857                 debug("about to remove splash, OMG!");
1858                 Element.hide("overlay");
1859                 debug("removed splash!");
1860         }
1861 }
1862
1863 function addLabelExample() {
1864         try {
1865                 var form = document.forms["label_edit_form"];
1866
1867                 var text = form.sql_exp;
1868                 var op = form.label_fields[form.label_fields.selectedIndex];
1869                 var p = form.label_fields_param;
1870
1871                 if (op) {
1872                         op = op.value;
1873
1874                         var tmp = "";
1875
1876                         if (text.value != "") {
1877                                 if (text.value.substring(text.value.length-3, 3).toUpperCase() != "AND") {
1878                                         tmp = " AND ";
1879                                 } else {
1880                                         tmp = " ";
1881                                 }
1882                         }
1883
1884                         if (op == "unread") {
1885                                 tmp = tmp + "unread = true";
1886                         }
1887
1888                         if (op == "updated") {
1889                                 tmp = tmp + "last_read is null and unread = false";
1890                         }
1891
1892                         if (op == "kw_title") {
1893                                 if (p.value == "") {
1894                                         alert("This action requires a parameter.");
1895                                         return false;
1896                                 }
1897                                 tmp = tmp + "ttrss_entries.title like '%"+p.value+"%'";
1898                         }
1899
1900                         if (op == "kw_content") {
1901                                 if (p.value == "") {
1902                                         alert("This action requires a parameter.");
1903                                         return false;
1904                                 }
1905
1906                                 tmp = tmp + "ttrss_entries.content like '%"+p.value+"%'";
1907                         }
1908
1909                         if (op == "scoreE") {
1910                                 if (isNaN(parseInt(p.value))) {
1911                                         alert("This action expects numeric parameter.");
1912                                         return false;
1913                                 }
1914                                 tmp = tmp + "score = " + p.value;
1915                         }
1916
1917                         if (op == "scoreG") {
1918                                 if (isNaN(parseInt(p.value))) {
1919                                         alert("This action expects numeric parameter.");
1920                                         return false;
1921                                 }
1922                                 tmp = tmp + "score > " + p.value;
1923                         }
1924
1925                         if (op == "scoreL") {
1926                                 if (isNaN(parseInt(p.value))) {
1927                                         alert("This action expects numeric parameter.");
1928                                         return false;
1929                                 }
1930                                 tmp = tmp + "score < " + p.value;
1931                         }
1932
1933                         if (op == "newerD") {
1934                                 if (isNaN(parseInt(p.value))) {
1935                                         alert("This action expects numeric parameter.");
1936                                         return false;
1937                                 }
1938                                 tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" days'";
1939                         }
1940
1941                         if (op == "newerH") {
1942                                 if (isNaN(parseInt(p.value))) {
1943                                         alert("This action expects numeric parameter.");
1944                                         return false;
1945                                 }
1946
1947                                 tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" hours'";
1948                         }
1949
1950                         text.value = text.value + tmp;
1951
1952                         p.value = "";
1953
1954                 }
1955
1956         } catch (e) {
1957                 exception_error("addLabelExample", e);
1958         }
1959
1960         return false;
1961 }
1962
1963 function labelFieldsCheck(elem) {
1964         try {
1965                 var op = elem[elem.selectedIndex].value;
1966
1967                 var p = document.forms["label_edit_form"].label_fields_param;
1968
1969                 if (op == "kw_title" || op == "kw_content" || op == "scoreL" ||
1970                                 op == "scoreG" ||       op == "scoreE" || op == "newerD" ||
1971                                 op == "newerH" ) {
1972                         Element.show(p);
1973                 } else {
1974                         Element.hide(p);
1975                 }
1976
1977         } catch (e) {
1978                 exception_error("labelFieldsCheck", e);
1979
1980         }
1981 }
1982
1983 function getSelectedFeedsFromBrowser() {
1984
1985         var list = $("browseFeedList");
1986         if (!list) list = $("browseBigFeedList");
1987
1988         var selected = new Array();
1989
1990         for (i = 0; i < list.childNodes.length; i++) {
1991                 var child = list.childNodes[i];
1992                 if (child.id && child.id.match("FBROW-")) {
1993                         var id = child.id.replace("FBROW-", "");
1994
1995                         var cb = $("FBCHK-" + id);
1996
1997                         if (cb.checked) {
1998                                 selected.push(id);
1999                         }
2000                 }
2001         }
2002
2003         return selected;
2004 }
2005
2006 function updateFeedBrowser() {
2007         try {
2008
2009                 var query = Form.serialize("feed_browser");
2010
2011                 Element.show('feed_browser_spinner');
2012
2013                 new Ajax.Request("backend.php", {
2014                         parameters: query,
2015                         onComplete: function(transport) {
2016                                 notify('');
2017
2018                                 Element.hide('feed_browser_spinner');
2019
2020                                 var c = $("browseFeedList");
2021                                 var r = transport.responseXML.getElementsByTagName("content")[0];
2022                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
2023                                 var mode = transport.responseXML.getElementsByTagName("mode")[0];
2024
2025                                 if (c && r) {
2026                                         c.innerHTML = r.firstChild.nodeValue;
2027                                 }
2028
2029                                 if (parseInt(mode.getAttribute("value")) == 2) {
2030                                         Element.show('feed_archive_remove');
2031                                 } else {
2032                                         Element.hide('feed_archive_remove');
2033                                 }
2034
2035                         } });
2036
2037         } catch (e) {
2038                 exception_error("updateFeedBrowser", e);
2039         }
2040
2041 }
2042
2043 function browseFeeds(limit) {
2044
2045         try {
2046
2047 /*              var query = "?op=ialog&subop=browse";
2048
2049                 notify_progress("Loading, please wait...", true);
2050
2051                 new Ajax.Request("backend.php", {
2052                         parameters: query,
2053                         onComplete: function(transport) {
2054                                 infobox_callback2(transport);
2055                         } }); */
2056
2057                 displayDlg('feedBrowser');
2058
2059                 return false;
2060         } catch (e) {
2061                 exception_error("browseFeeds", e);
2062         }
2063 }
2064
2065 function transport_error_check(transport) {
2066         try {
2067                 if (transport.responseXML) {
2068                         var error = transport.responseXML.getElementsByTagName("error")[0];
2069
2070                         if (error) {
2071                                 var code = error.getAttribute("error-code");
2072                                 var msg = error.getAttribute("error-msg");
2073                                 if (code != 0) {
2074                                         fatalError(code, msg);
2075                                         return false;
2076                                 }
2077                         }
2078                 }
2079         } catch (e) {
2080                 exception_error("check_for_error_xml", e);
2081         }
2082         return true;
2083 }
2084
2085 function strip_tags(s) {
2086         return s.replace(/<\/?[^>]+(>|$)/g, "");
2087 }
2088
2089 function truncate_string(s, length) {
2090         if (!length) length = 30;
2091         var tmp = s.substring(0, length);
2092         if (s.length > length) tmp += "&hellip;";
2093         return tmp;
2094 }
2095
2096 /*
2097 function switchToFlash(e) {
2098         try {
2099                 var targ = e;
2100                 if (!e) var e = window.event;
2101                 if (e.target) targ = e.target;
2102                 else if (e.srcElement) targ = e.srcElement;
2103                 if (targ.nodeType == 3) // defeat Safari bug
2104                         targ = targ.parentNode;
2105
2106                 //targ is the link that was clicked
2107                 var audioTag=targ;
2108                 do {
2109                         audioTag=audioTag.previousSibling;
2110                 } while(audioTag && audioTag.nodeType != 1)
2111
2112                 var flashPlayer = audioTag.getElementsByTagName('span')[0];
2113                 targ.parentNode.insertBefore(flashPlayer,targ);
2114                 targ.parentNode.removeChild(targ);
2115                 audioTag.parentNode.removeChild(audioTag);
2116
2117                 return false;
2118         } catch (e) {
2119                 exception_error("switchToFlash", e);
2120         }
2121 }
2122
2123 function html5AudioOrFlash(type) {
2124         var audioTag = document.createElement('audio');
2125         if(! audioTag.canPlayType || audioTag.canPlayType(type) == "no" ||
2126                         audioTag.canPlayType(type) == ""){
2127                 if($('switchToFlashLink')){
2128                         switchToFlash($('switchToFlashLink'));
2129                 }
2130         }
2131 } */
2132
2133 function hotkey_prefix_timeout() {
2134         try {
2135
2136                 var date = new Date();
2137                 var ts = Math.round(date.getTime() / 1000);
2138
2139                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
2140                         debug("hotkey_prefix seems to be stuck, aborting");
2141                         hotkey_prefix_pressed = false;
2142                         hotkey_prefix = false;
2143                         Element.hide('cmdline');
2144                 }
2145
2146                 setTimeout("hotkey_prefix_timeout()", 1000);
2147
2148         } catch  (e) {
2149                 exception_error("hotkey_prefix_timeout", e);
2150         }
2151 }
2152
2153 function hideAuxDlg() {
2154         try {
2155                 Element.hide('auxDlg');
2156         } catch (e) {
2157                 exception_error("hideAuxDlg", e);
2158         }
2159 }
2160
2161 function displayNewContentPrompt(id) {
2162         try {
2163
2164                 var msg = "<a href='#' onclick='viewfeed("+id+")'>" +
2165                         __("New articles available in this feed (click to show)") + "</a>";
2166
2167                 msg = msg.replace("%s", getFeedName(id));
2168
2169                 $('auxDlg').innerHTML = msg;
2170
2171                 Element.show('auxDlg');
2172
2173         } catch (e) {
2174                 exception_error("displayNewContentPrompt", e);
2175         }
2176 }
2177
2178 function feedBrowserSubscribe() {
2179         try {
2180
2181                 var selected = getSelectedFeedsFromBrowser();
2182
2183                 var mode = document.forms['feed_browser'].mode;
2184
2185                 mode = mode[mode.selectedIndex].value;
2186
2187                 if (selected.length > 0) {
2188                         closeInfoBox();
2189
2190                         notify_progress("Loading, please wait...", true);
2191
2192                         var query = "?op=rpc&subop=massSubscribe&ids="+
2193                                 param_escape(selected.toString()) + "&mode=" + param_escape(mode);
2194
2195                         new Ajax.Request("backend.php", {
2196                                 parameters: query,
2197                                 onComplete: function(transport) {
2198
2199                                         var nf = transport.responseXML.getElementsByTagName('num-feeds')[0];
2200                                         var nf_value = nf.getAttribute("value");
2201
2202                                         notify_info(__("Subscribed to %d feed(s).").replace("%d", nf_value));
2203
2204                                         if (inPreferences()) {
2205                                                 updateFeedList();
2206                                         } else {
2207                                                 setTimeout('updateFeedList(false, false)', 50);
2208                                         }
2209                                 } });
2210
2211                 } else {
2212                         alert(__("No feeds are selected."));
2213                 }
2214
2215         } catch (e) {
2216                 exception_error("feedBrowserSubscribe", e);
2217         }
2218 }
2219
2220 function feedArchiveRemove() {
2221         try {
2222
2223                 var selected = getSelectedFeedsFromBrowser();
2224
2225                 if (selected.length > 0) {
2226
2227                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
2228
2229                         if (confirm(pr)) {
2230                                 Element.show('feed_browser_spinner');
2231
2232                                 var query = "?op=rpc&subop=remarchived&ids=" +
2233                                         param_escape(selected.toString());;
2234
2235                                 new Ajax.Request("backend.php", {
2236                                         parameters: query,
2237                                         onComplete: function(transport) {
2238                                                 updateFeedBrowser();
2239                                         } });
2240                         }
2241
2242                 } else {
2243                         alert(__("No feeds are selected."));
2244                 }
2245
2246         } catch (e) {
2247                 exception_error("feedArchiveRemove", e);
2248         }
2249 }
2250
2251 function uploadIconHandler(rc) {
2252         try {
2253                 switch (rc) {
2254                         case 0:
2255                                 notify_info("Upload complete.");
2256                                 if (inPreferences()) {
2257                                         updateFeedList();
2258                                 } else {
2259                                         setTimeout('updateFeedList(false, false)', 50);
2260                                 }
2261                                 break;
2262                         case 1:
2263                                 notify_error("Upload failed: icon is too big.");
2264                                 break;
2265                         case 2:
2266                                 notify_error("Upload failed.");
2267                                 break;
2268                 }
2269
2270         } catch (e) {
2271                 exception_error("uploadIconHandler", e);
2272         }
2273 }
2274
2275 function removeFeedIcon(id) {
2276
2277         try {
2278
2279                 if (confirm(__("Remove stored feed icon?"))) {
2280                         var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
2281
2282                         debug(query);
2283
2284                         notify_progress("Removing feed icon...", true);
2285
2286                         new Ajax.Request("backend.php", {
2287                                 parameters: query,
2288                                 onComplete: function(transport) {
2289                                         notify_info("Feed icon removed.");
2290                                         if (inPreferences()) {
2291                                                 updateFeedList();
2292                                         } else {
2293                                                 setTimeout('updateFeedList(false, false)', 50);
2294                                         }
2295                                 } });
2296                 }
2297
2298                 return false;
2299         } catch (e) {
2300                 exception_error("uploadFeedIcon", e);
2301         }
2302 }
2303
2304 function uploadFeedIcon() {
2305
2306         try {
2307
2308                 var file = $("icon_file");
2309
2310                 if (file.value.length == 0) {
2311                         alert(__("Please select an image file to upload."));
2312                 } else {
2313                         if (confirm(__("Upload new icon for this feed?"))) {
2314                                 notify_progress("Uploading, please wait...", true);
2315                                 return true;
2316                         }
2317                 }
2318
2319                 return false;
2320
2321         } catch (e) {
2322                 exception_error("uploadFeedIcon", e);
2323         }
2324 }
2325