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 var sanity_check_done = false;
   6
   7 /* add method to remove element from array */
   8
   9 Array.prototype.remove = function(s) {
  10         for (var i=0; i < this.length; i++) {
  11                 if (s == this[i]) this.splice(i, 1);
  12         }
  13 }
  14
  15 /* create console.log if it doesn't exist */
  16
  17 if (!window.console) console = {};
  18 console.log = console.log || function(msg) { };
  19 console.warn = console.warn || function(msg) { };
  20 console.error = console.error || function(msg) { };
  21
  22 function exception_error(location, e, ext_info) {
  23         var msg = format_exception_error(location, e);
  24
  25         if (!ext_info) ext_info = false;
  26
  27         disableHotkeys();
  28
  29         try {
  30
  31                 var ebc = $("xebContent");
  32
  33                 if (ebc) {
  34
  35                         Element.show("dialog_overlay");
  36                         Element.show("errorBoxShadow");
  37
  38                         if (ext_info) {
  39                                 if (ext_info.responseText) {
  40                                         ext_info = ext_info.responseText;
  41                                 }
  42                         }
  43
  44                         ebc.innerHTML =
  45                                 "<div><b>Error message:</b></div>" +
  46                                 "<pre>" + msg + "</pre>";
  47
  48                         if (ext_info) {
  49                                 ebc.innerHTML += "<div><b>Additional information:</b></div>" +
  50                                 "<textarea readonly=\"1\">" + ext_info + "</textarea>";
  51                         }
  52
  53                         ebc.innerHTML += "<div><b>Stack trace:</b></div>" +
  54                                 "<textarea readonly=\"1\">" + e.stack + "</textarea>";
  55
  56                 } else {
  57                         alert(msg);
  58                 }
  59
  60         } catch (e) {
  61                 alert(msg);
  62
  63         }
  64
  65 }
  66
  67 function format_exception_error(location, e) {
  68         var msg;
  69
  70         if (e.fileName) {
  71                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  72
  73                 msg = "Exception: " + e.name + ", " + e.message +
  74                         "\nFunction: " + location + "()" +
  75                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  76
  77         } else if (e.description) {
  78                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
  79         } else {
  80                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  81         }
  82
  83         console.error("EXCEPTION: " + msg);
  84
  85         return msg;
  86 }
  87
  88
  89 function disableHotkeys() {
  90         hotkeys_enabled = false;
  91 }
  92
  93 function enableHotkeys() {
  94         hotkeys_enabled = true;
  95 }
  96
  97 function param_escape(arg) {
  98         if (typeof encodeURIComponent != 'undefined')
  99                 return encodeURIComponent(arg);
 100         else
 101                 return escape(arg);
 102 }
 103
 104 function param_unescape(arg) {
 105         if (typeof decodeURIComponent != 'undefined')
 106                 return decodeURIComponent(arg);
 107         else
 108                 return unescape(arg);
 109 }
 110
 111 function delay(gap) {
 112         var then,now;
 113         then=new Date().getTime();
 114         now=then;
 115         while((now-then)<gap) {
 116                 now=new Date().getTime();
 117         }
 118 }
 119
 120 var notify_hide_timerid = false;
 121
 122 function hide_notify() {
 123         var n = $("notify");
 124         if (n) {
 125                 n.style.display = "none";
 126         }
 127 }
 128
 129 function notify_silent_next() {
 130         notify_silent = true;
 131 }
 132
 133 function notify_real(msg, no_hide, n_type) {
 134
 135         if (notify_silent) {
 136                 notify_silent = false;
 137                 return;
 138         }
 139
 140         var n = $("notify");
 141         var nb = $("notify_body");
 142
 143         if (!n || !nb) return;
 144
 145         if (notify_hide_timerid) {
 146                 window.clearTimeout(notify_hide_timerid);
 147         }
 148
 149         if (msg == "") {
 150                 if (n.style.display == "block") {
 151                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 152                 }
 153                 return;
 154         } else {
 155                 n.style.display = "block";
 156         }
 157
 158         /* types:
 159
 160                 1 - generic
 161                 2 - progress
 162                 3 - error
 163                 4 - info
 164
 165         */
 166
 167         if (typeof __ != 'undefined') {
 168                 msg = __(msg);
 169         }
 170
 171         if (n_type == 1) {
 172                 n.className = "notify";
 173         } else if (n_type == 2) {
 174                 n.className = "notifyProgress";
 175                 msg = "<img src='"+getInitParam("sign_progress")+"'> " + msg;
 176         } else if (n_type == 3) {
 177                 n.className = "notifyError";
 178                 msg = "<img src='"+getInitParam("sign_excl")+"'> " + msg;
 179         } else if (n_type == 4) {
 180                 n.className = "notifyInfo";
 181                 msg = "<img src='"+getInitParam("sign_info")+"'> " + msg;
 182         }
 183
 184 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 185
 186         nb.innerHTML = msg;
 187
 188         if (!no_hide) {
 189                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 190         }
 191 }
 192
 193 function notify(msg, no_hide) {
 194         notify_real(msg, no_hide, 1);
 195 }
 196
 197 function notify_progress(msg, no_hide) {
 198         notify_real(msg, no_hide, 2);
 199 }
 200
 201 function notify_error(msg, no_hide) {
 202         notify_real(msg, no_hide, 3);
 203
 204 }
 205
 206 function notify_info(msg, no_hide) {
 207         notify_real(msg, no_hide, 4);
 208 }
 209
 210 function printLockingError() {
 211         notify_info("Please wait until operation finishes.");
 212 }
 213
 214 function cleanSelected(element) {
 215         var content = $(element);
 216
 217         for (i = 0; i < content.rows.length; i++) {
 218                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 219         }
 220 }
 221
 222 function getVisibleUnreadHeadlines() {
 223         var content = $("headlinesList");
 224
 225         var rows = new Array();
 226
 227         if (!content) return rows;
 228
 229         for (i = 0; i < content.rows.length; i++) {
 230                 var row_id = content.rows[i].id.replace("RROW-", "");
 231                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 232                                 rows.push(row_id);
 233                 }
 234         }
 235         return rows;
 236 }
 237
 238 function getVisibleHeadlineIds() {
 239
 240         var content = $("headlinesList");
 241
 242         var rows = new Array();
 243
 244         if (!content) return rows;
 245
 246         for (i = 0; i < content.rows.length; i++) {
 247                 var row_id = content.rows[i].id.replace("RROW-", "");
 248                 if (row_id.length > 0) {
 249                                 rows.push(row_id);
 250                 }
 251         }
 252         return rows;
 253 }
 254
 255 function getFirstVisibleHeadlineId() {
 256         if (isCdmMode()) {
 257                 var rows = cdmGetVisibleArticles();
 258                 return rows[0];
 259         } else {
 260                 var rows = getVisibleHeadlineIds();
 261                 return rows[0];
 262         }
 263 }
 264
 265 function getLastVisibleHeadlineId() {
 266         if (isCdmMode()) {
 267                 var rows = cdmGetVisibleArticles();
 268                 return rows[rows.length-1];
 269         } else {
 270                 var rows = getVisibleHeadlineIds();
 271                 return rows[rows.length-1];
 272         }
 273 }
 274
 275 function markHeadline(id) {
 276         var row = $("RROW-" + id);
 277         if (row) {
 278                 var is_active = false;
 279
 280                 if (row.className.match("Active")) {
 281                         is_active = true;
 282                 }
 283                 row.className = row.className.replace("Selected", "");
 284                 row.className = row.className.replace("Active", "");
 285                 row.className = row.className.replace("Insensitive", "");
 286
 287                 if (is_active) {
 288                         row.className = row.className = "Active";
 289                 }
 290
 291                 var check = $("RCHK-" + id);
 292
 293                 if (check) {
 294                         check.checked = true;
 295                 }
 296
 297                 row.className = row.className + "Selected";
 298
 299         }
 300 }
 301
 302 function getFeedIds() {
 303         var content = $("feedsList");
 304
 305         var rows = new Array();
 306
 307         for (i = 0; i < content.rows.length; i++) {
 308                 var id = content.rows[i].id.replace("FEEDR-", "");
 309                 if (id.length > 0) {
 310                         rows.push(id);
 311                 }
 312         }
 313
 314         return rows;
 315 }
 316
 317 function setCookie(name, value, lifetime, path, domain, secure) {
 318
 319         var d = false;
 320
 321         if (lifetime) {
 322                 d = new Date();
 323                 d.setTime(d.getTime() + (lifetime * 1000));
 324         }
 325
 326         console.log("setCookie: " + name + " => " + value + ": " + d);
 327
 328         int_setCookie(name, value, d, path, domain, secure);
 329
 330 }
 331
 332 function int_setCookie(name, value, expires, path, domain, secure) {
 333         document.cookie= name + "=" + escape(value) +
 334                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 335                 ((path) ? "; path=" + path : "") +
 336                 ((domain) ? "; domain=" + domain : "") +
 337                 ((secure) ? "; secure" : "");
 338 }
 339
 340 function delCookie(name, path, domain) {
 341         if (getCookie(name)) {
 342                 document.cookie = name + "=" +
 343                 ((path) ? ";path=" + path : "") +
 344                 ((domain) ? ";domain=" + domain : "" ) +
 345                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 346         }
 347 }
 348
 349
 350 function getCookie(name) {
 351
 352         var dc = document.cookie;
 353         var prefix = name + "=";
 354         var begin = dc.indexOf("; " + prefix);
 355         if (begin == -1) {
 356             begin = dc.indexOf(prefix);
 357             if (begin != 0) return null;
 358         }
 359         else {
 360             begin += 2;
 361         }
 362         var end = document.cookie.indexOf(";", begin);
 363         if (end == -1) {
 364             end = dc.length;
 365         }
 366         return unescape(dc.substring(begin + prefix.length, end));
 367 }
 368
 369 function gotoPreferences() {
 370         document.location.href = "prefs.php";
 371 }
 372
 373 function gotoMain() {
 374         document.location.href = "tt-rss.php";
 375 }
 376
 377 function gotoExportOpml() {
 378         document.location.href = "opml.php?op=Export";
 379 }
 380
 381 function parse_counters(reply, scheduled_call) {
 382         try {
 383
 384                 var feeds_found = 0;
 385
 386                 var elems = JSON.parse(reply.firstChild.nodeValue);
 387
 388                 for (var l = 0; l < elems.length; l++) {
 389
 390                         var id = elems[l].id
 391                         var kind = elems[l].kind;
 392                         var ctr = parseInt(elems[l].counter)
 393                         var error = elems[l].error;
 394                         var has_img = elems[l].has_img;
 395                         var updated = elems[l].updated;
 396                         var title = elems[l].title;
 397                         var xmsg = elems[l].xmsg;
 398
 399                         if (id == "global-unread") {
 400
 401                                 if (ctr > global_unread) {
 402                                         offlineDownloadStart(1);
 403                                 }
 404
 405                                 global_unread = ctr;
 406                                 updateTitle();
 407                                 continue;
 408                         }
 409
 410                         if (id == "subscribed-feeds") {
 411                                 feeds_found = ctr;
 412                                 continue;
 413                         }
 414
 415                         if (kind && kind == "cat") {
 416                                 var catctr = $("FCATCTR-" + id);
 417                                 if (catctr) {
 418                                         catctr.innerHTML = "(" + ctr + ")";
 419                                         if (ctr > 0) {
 420                                                 catctr.className = "catCtrHasUnread";
 421                                         } else {
 422                                                 catctr.className = "catCtrNoUnread";
 423                                         }
 424                                 }
 425                                 continue;
 426                         }
 427
 428                         var feedctr = $("FEEDCTR-" + id);
 429                         var feedu = $("FEEDU-" + id);
 430                         var feedr = $("FEEDR-" + id);
 431                         var feed_img = $("FIMG-" + id);
 432                         var feedlink = $("FEEDL-" + id);
 433                         var feedupd = $("FLUPD-" + id);
 434
 435                         if (updated && feedlink) {
 436                                 if (error) {
 437                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 438                                 } else {
 439                                         feedlink.title = "Updated: " + updated;
 440                                 }
 441                         }
 442
 443                         if (feedupd) {
 444                                 if (!updated) updated = "";
 445
 446                                 if (error) {
 447                                         if (xmsg) {
 448                                                 feedupd.innerHTML = updated + " " + xmsg + " (Error)";
 449                                         } else {
 450                                                 feedupd.innerHTML = updated + " (Error)";
 451                                         }
 452                                 } else {
 453                                         if (xmsg) {
 454                                                 feedupd.innerHTML = updated + " " + xmsg;
 455                                         } else {
 456                                                 feedupd.innerHTML = updated;
 457                                         }
 458                                 }
 459                         }
 460
 461                         if (has_img && feed_img) {
 462                                 if (!feed_img.src.match(id + ".ico")) {
 463                                         feed_img.src = getInitParam("icons_url") + "/" + id + ".ico";
 464                                 }
 465                         }
 466
 467                         if (feedlink && title) {
 468                                 feedlink.innerHTML = title;
 469                         }
 470
 471                         if (feedctr && feedu && feedr) {
 472
 473                                 if (parseInt(ctr) > 0 &&
 474                                                 parseInt(feedu.innerHTML) < parseInt(ctr) &&
 475                                                 id == getActiveFeedId() && scheduled_call) {
 476
 477                                         displayNewContentPrompt(id);
 478                                 }
 479
 480                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 481
 482                                 feedu.innerHTML = ctr;
 483
 484                                 if (error) {
 485                                         feedr.className = feedr.className.replace("feed", "error");
 486                                 } else if (id > 0) {
 487                                         feedr.className = feedr.className.replace("error", "feed");
 488                                 }
 489
 490                                 if (ctr > 0) {
 491                                         feedctr.className = "feedCtrHasUnread";
 492                                         if (!feedr.className.match("Unread")) {
 493                                                 var is_selected = feedr.className.match("Selected");
 494
 495                                                 feedr.className = feedr.className.replace("Selected", "");
 496                                                 feedr.className = feedr.className.replace("Unread", "");
 497
 498                                                 feedr.className = feedr.className + "Unread";
 499
 500                                                 if (is_selected) {
 501                                                         feedr.className = feedr.className + "Selected";
 502                                                 }
 503
 504                                         }
 505
 506                                         if (row_needs_hl &&
 507                                                         !getInitParam("theme_options").match('no_highlights')) {
 508                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 509                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 510
 511                                                 cache_invalidate("F:" + id);
 512                                         }
 513                                 } else {
 514                                         feedctr.className = "feedCtrNoUnread";
 515                                         feedr.className = feedr.className.replace("Unread", "");
 516                                 }
 517                         }
 518                 }
 519
 520                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 521
 522                 var feeds_stored = number_of_feeds;
 523
 524                 console.log("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 525
 526                 if (feeds_stored != feeds_found) {
 527                         number_of_feeds = feeds_found;
 528
 529                         if (feeds_stored != 0 && feeds_found != 0) {
 530                                 console.log("Subscribed feed number changed, refreshing feedlist");
 531                                 setTimeout('updateFeedList(false, false)', 50);
 532                         }
 533                 } else {
 534 /*                      var fl = $("feeds-frame").innerHTML;
 535                         if (fl) {
 536                                 cache_invalidate("FEEDLIST");
 537                                 cache_inject("FEEDLIST", fl, getInitParam("num_feeds"));
 538                         } */
 539                 }
 540
 541         } catch (e) {
 542                 exception_error("parse_counters", e);
 543         }
 544 }
 545
 546 function parse_counters_reply(transport, scheduled_call) {
 547
 548         if (!transport.responseXML) {
 549                 notify_error("Backend did not return valid XML", true);
 550                 return;
 551         }
 552
 553         var reply = transport.responseXML.firstChild;
 554
 555         if (!reply) {
 556                 notify_error("Backend did not return expected XML object", true);
 557                 updateTitle("");
 558                 return;
 559         }
 560
 561         if (!transport_error_check(transport)) return;
 562
 563         var counters = reply.getElementsByTagName("counters")[0];
 564
 565         if (counters)
 566                 parse_counters(counters, scheduled_call);
 567
 568         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 569
 570         if (runtime_info)
 571                 parse_runtime_info(runtime_info);
 572
 573         if (feedsSortByUnread()) {
 574                 resort_feedlist();
 575         }
 576
 577         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 578
 579 }
 580
 581 function all_counters_callback2(transport, async_call) {
 582         try {
 583                 if (async_call) async_counters_work = true;
 584                 if (offline_mode) return;
 585
 586                 parse_counters_reply(transport);
 587
 588         } catch (e) {
 589                 exception_error("all_counters_callback2", e, transport);
 590         }
 591 }
 592
 593 function get_feed_unread(id) {
 594         try {
 595                 return parseInt($("FEEDU-" + id).innerHTML);
 596         } catch (e) {
 597                 return -1;
 598         }
 599 }
 600
 601 function get_cat_unread(id) {
 602         try {
 603                 var ctr = $("FCATCTR-" + id).innerHTML;
 604                 ctr = ctr.replace("(", "");
 605                 ctr = ctr.replace(")", "");
 606                 return parseInt(ctr);
 607         } catch (e) {
 608                 return -1;
 609         }
 610 }
 611
 612 function get_feed_entry_unread(elem) {
 613
 614         var id = elem.id.replace("FEEDR-", "");
 615
 616         if (id <= 0) {
 617                 return -1;
 618         }
 619
 620         try {
 621                 return parseInt($("FEEDU-" + id).innerHTML);
 622         } catch (e) {
 623                 return -1;
 624         }
 625 }
 626
 627 function get_feed_entry_name(elem) {
 628         var id = elem.id.replace("FEEDR-", "");
 629         return getFeedName(id);
 630 }
 631
 632
 633 function resort_category(node, cat_mode) {
 634
 635         try {
 636
 637                 console.log("resort_category: " + node + " CM=" + cat_mode);
 638
 639                 var by_unread = feedsSortByUnread();
 640
 641                 var list = node.getElementsByTagName("LI");
 642
 643                 for (i = 0; i < list.length; i++) {
 644
 645                         for (j = i+1; j < list.length; j++) {
 646
 647                                 var tmp_val = get_feed_entry_unread(list[i]);
 648                                 var cur_val = get_feed_entry_unread(list[j]);
 649
 650                                 var tmp_name = get_feed_entry_name(list[i]);
 651                                 var cur_name = get_feed_entry_name(list[j]);
 652
 653                                 /* we don't want to match FEEDR-0 - e.g. Archived articles */
 654
 655                                 var valid_pair = cat_mode || (list[i].id.match(/FEEDR-[1-9]/) &&
 656                                                 list[j].id.match(/FEEDR-[1-9]/));
 657
 658                                 if (valid_pair && ((by_unread && (cur_val > tmp_val)) || (!by_unread && (cur_name < tmp_name)))) {
 659                                         tempnode_i = list[i].cloneNode(true);
 660                                         tempnode_j = list[j].cloneNode(true);
 661                                         node.replaceChild(tempnode_i, list[j]);
 662                                         node.replaceChild(tempnode_j, list[i]);
 663                                 }
 664                         }
 665                 }
 666
 667         } catch (e) {
 668                 exception_error("resort_category", e);
 669         }
 670
 671 }
 672
 673 function resort_feedlist() {
 674         console.log("resort_feedlist");
 675
 676         if ($("FCATLIST--1")) {
 677
 678                 var lists = document.getElementsByTagName("UL");
 679
 680                 for (var i = 0; i < lists.length; i++) {
 681                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 682                                 resort_category(lists[i], true);
 683                         }
 684                 }
 685
 686         } else {
 687                 resort_category($("feedList"), false);
 688         }
 689 }
 690
 691 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 692   * * @author Sundar Dorai-Raj
 693   * * Email: sdoraira@vt.edu
 694   * * This program is free software; you can redistribute it and/or
 695   * * modify it under the terms of the GNU General Public License
 696   * * as published by the Free Software Foundation; either version 2
 697   * * of the License, or (at your option) any later version,
 698   * * provided that any use properly credits the author.
 699   * * This program is distributed in the hope that it will be useful,
 700   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 701   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 702   * * GNU General Public License for more details at http://www.gnu.org * * */
 703
 704   var numbers=".0123456789";
 705   function isNumeric(x) {
 706     // is x a String or a character?
 707     if(x.length>1) {
 708       // remove negative sign
 709       x=Math.abs(x)+"";
 710       for(j=0;j<x.length;j++) {
 711         // call isNumeric recursively for each character
 712         number=isNumeric(x.substring(j,j+1));
 713         if(!number) return number;
 714       }
 715       return number;
 716     }
 717     else {
 718       // if x is number return true
 719       if(numbers.indexOf(x)>=0) return true;
 720       return false;
 721     }
 722   }
 723
 724
 725 function hideOrShowFeeds(hide) {
 726
 727         try {
 728
 729         console.log("hideOrShowFeeds: " + hide);
 730
 731         if ($("FCATLIST--1")) {
 732
 733                 var lists = document.getElementsByTagName("UL");
 734
 735                 for (var i = 0; i < lists.length; i++) {
 736                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 737
 738                                 var id = lists[i].id.replace("FCATLIST-", "");
 739                                 hideOrShowFeedsCategory(id, hide);
 740                         }
 741                 }
 742
 743         } else {
 744                 hideOrShowFeedsCategory(null, hide);
 745         }
 746
 747         } catch (e) {
 748                 exception_error("hideOrShowFeeds", e);
 749         }
 750 }
 751
 752 function hideOrShowFeedsCategory(id, hide) {
 753
 754         try {
 755
 756                 var node = null;
 757                 var cat_node = null;
 758
 759                 if (id) {
 760                         node = $("FCATLIST-" + id);
 761                         cat_node = $("FCAT-" + id);
 762                 } else {
 763                         node = $("feedList"); // no categories
 764                 }
 765
 766         //      console.log("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 767
 768                 var cat_unread = 0;
 769
 770                 if (!node) {
 771                         console.log("hideOrShowFeeds: passed node is null, aborting");
 772                         return;
 773                 }
 774
 775         //      console.log("cat: " + node.id);
 776
 777                 if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 778                         for (i = 0; i < node.childNodes.length; i++) {
 779                                 if (node.childNodes[i].nodeName != "LI") { continue; }
 780
 781                                 if (node.childNodes[i].style != undefined) {
 782
 783                                         var has_unread = (node.childNodes[i].className != "feed" &&
 784                                                 node.childNodes[i].className != "label" &&
 785                                                 !(!getInitParam("hide_read_shows_special") &&
 786                                                         node.childNodes[i].className == "virt") &&
 787                                                 node.childNodes[i].className != "error" &&
 788                                                 node.childNodes[i].className != "tag");
 789
 790         //                              console.log(node.childNodes[i].id + " --> " + has_unread);
 791
 792                                         if (hide && !has_unread) {
 793                                                 //node.childNodes[i].style.display = "none";
 794                                                 var id = node.childNodes[i].id;
 795                                                 Effect.Fade(node.childNodes[i], {duration : 0.3,
 796                                                         queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 797                                         }
 798
 799                                         if (!hide) {
 800                                                 node.childNodes[i].style.display = "list-item";
 801                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 802                                         }
 803
 804                                         if (has_unread) {
 805                                                 node.childNodes[i].style.display = "list-item";
 806                                                 cat_unread++;
 807                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 808                                                 //Effect.Highlight(node.childNodes[i]);
 809                                         }
 810                                 }
 811                         }
 812                 }
 813
 814         //      console.log("end cat: " + node.id + " unread " + cat_unread);
 815
 816                 if (cat_node) {
 817
 818                         if (cat_unread == 0) {
 819                                 if (cat_node.style == undefined) {
 820                                         console.log("ERROR: supplied cat_node " + cat_node +
 821                                                 " has no styles. WTF?");
 822                                         return;
 823                                 }
 824                                 if (hide) {
 825                                         //cat_node.style.display = "none";
 826                                         Effect.Fade(cat_node, {duration : 0.3,
 827                                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 828                                 } else {
 829                                         cat_node.style.display = "list-item";
 830                                 }
 831                         } else {
 832                                 try {
 833                                         cat_node.style.display = "list-item";
 834                                 } catch (e) {
 835                                         console.log(e);
 836                                 }
 837                         }
 838                 }
 839
 840 //      console.log("unread for category: " + cat_unread);
 841
 842         } catch (e) {
 843                 exception_error("hideOrShowFeedsCategory", e);
 844         }
 845 }
 846
 847 function selectTableRow(r, do_select) {
 848         r.className = r.className.replace("Selected", "");
 849
 850         if (do_select) {
 851                 r.className = r.className + "Selected";
 852         }
 853 }
 854
 855 function selectTableRowById(elem_id, check_id, do_select) {
 856
 857         try {
 858
 859                 var row = $(elem_id);
 860
 861                 if (row) {
 862                         selectTableRow(row, do_select);
 863                 }
 864
 865                 var check = $(check_id);
 866
 867                 if (check) {
 868                         check.checked = do_select;
 869                 }
 870         } catch (e) {
 871                 exception_error("selectTableRowById", e);
 872         }
 873 }
 874
 875 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 876         classcheck, reset_others) {
 877
 878         var content = $(content_id);
 879
 880         if (!content) {
 881                 console.log("[selectTableRows] Element " + content_id + " not found.");
 882                 return;
 883         }
 884
 885         for (i = 0; i < content.rows.length; i++) {
 886                 if (Element.visible(content.rows[i])) {
 887                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 888
 889                                 if (content.rows[i].id.match(prefix)) {
 890                                         selectTableRow(content.rows[i], do_select);
 891
 892                                         var row_id = content.rows[i].id.replace(prefix, "");
 893                                         var check = $(check_prefix + row_id);
 894
 895                                         if (check) {
 896                                                 check.checked = do_select;
 897                                         }
 898                                 } else if (reset_others) {
 899                                         selectTableRow(content.rows[i], false);
 900
 901                                         var row_id = content.rows[i].id.replace(prefix, "");
 902                                         var check = $(check_prefix + row_id);
 903
 904                                         if (check) {
 905                                                 check.checked = false;
 906                                         }
 907
 908                                 }
 909                         } else if (reset_others) {
 910                                 selectTableRow(content.rows[i], false);
 911
 912                                 var row_id = content.rows[i].id.replace(prefix, "");
 913                                 var check = $(check_prefix + row_id);
 914
 915                                 if (check) {
 916                                         check.checked = false;
 917                                 }
 918
 919                         }
 920                 }
 921         }
 922 }
 923
 924 function getSelectedTableRowIds(content_id, prefix) {
 925
 926         var content = $(content_id);
 927
 928         if (!content) {
 929                 console.log("[getSelectedTableRowIds] Element " + content_id + " not found.");
 930                 return new Array();
 931         }
 932
 933         var sel_rows = new Array();
 934
 935         for (i = 0; i < content.rows.length; i++) {
 936                 if (content.rows[i].id.match(prefix) &&
 937                                 content.rows[i].className.match("Selected")) {
 938
 939                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 940                         sel_rows.push(row_id);
 941                 }
 942         }
 943
 944         return sel_rows;
 945
 946 }
 947
 948 function toggleSelectRowById(sender, id) {
 949         var row = $(id);
 950
 951         if (sender.checked) {
 952                 if (!row.className.match("Selected")) {
 953                         row.className = row.className + "Selected";
 954                 }
 955         } else {
 956                 if (row.className.match("Selected")) {
 957                         row.className = row.className.replace("Selected", "");
 958                 }
 959         }
 960 }
 961
 962 function toggleSelectListRow(sender) {
 963         var parent_row = sender.parentNode;
 964
 965         if (sender.checked) {
 966                 if (!parent_row.className.match("Selected")) {
 967                         parent_row.className = parent_row.className + "Selected";
 968                 }
 969         } else {
 970                 if (parent_row.className.match("Selected")) {
 971                         parent_row.className = parent_row.className.replace("Selected", "");
 972                 }
 973         }
 974 }
 975
 976 function tSR(sender) {
 977         return toggleSelectRow(sender);
 978 }
 979
 980 function toggleSelectRow(sender) {
 981         var parent_row = sender.parentNode.parentNode;
 982
 983         if (sender.checked) {
 984                 if (!parent_row.className.match("Selected")) {
 985                         parent_row.className = parent_row.className + "Selected";
 986                 }
 987         } else {
 988                 if (parent_row.className.match("Selected")) {
 989                         parent_row.className = parent_row.className.replace("Selected", "");
 990                 }
 991         }
 992 }
 993
 994 function getNextUnreadCat(id) {
 995         try {
 996                 var rows = $("feedList").getElementsByTagName("LI");
 997                 var feeds = new Array();
 998
 999                 var unread_only = true;
1000                 var is_cat = true;
1001
1002                 for (var i = 0; i < rows.length; i++) {
1003                         if (rows[i].id.match("FCAT-")) {
1004                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1005
1006                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1007
1008                                         if (cat_id >= 0) {
1009                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1010                                                         feeds.push(cat_id);
1011                                                 }
1012                                         }
1013                                 }
1014                         }
1015                 }
1016
1017                 var idx = feeds.indexOf(id);
1018                 if (idx != -1 && idx < feeds.length) {
1019                         return feeds[idx+1];
1020                 } else {
1021                         return feeds.shift();
1022                 }
1023
1024         } catch (e) {
1025                 exception_error("getNextUnreadCat", e);
1026         }
1027 }
1028
1029 function getRelativeFeedId2(id, is_cat, direction, unread_only) {
1030         try {
1031
1032 //              alert(id + " IC: " + is_cat + " D: " + direction + " U: " + unread_only);
1033
1034                 var rows = $("feedList").getElementsByTagName("LI");
1035                 var feeds = new Array();
1036
1037                 for (var i = 0; i < rows.length; i++) {
1038                         if (rows[i].id.match("FEEDR-")) {
1039
1040                                 if (rows[i].id == "FEEDR-" + id && !is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1041
1042                                         if (!unread_only ||
1043                                                         (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1044                                                 feeds.push(rows[i].id.replace("FEEDR-", ""));
1045                                         }
1046                                 }
1047                         }
1048
1049                         if (rows[i].id.match("FCAT-")) {
1050                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1051
1052                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1053
1054                                         if (cat_id >= 0) {
1055                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1056                                                         feeds.push("CAT:"+cat_id);
1057                                                 }
1058                                         }
1059                                 }
1060                         }
1061                 }
1062
1063 //              alert(feeds.toString());
1064
1065                 if (!id) {
1066                         if (direction == "next") {
1067                                 return feeds.shift();
1068                         } else {
1069                                 return feeds.pop();
1070                         }
1071                 } else {
1072                         if (direction == "next") {
1073                                 if (is_cat) id = "CAT:" + id;
1074                                 var idx = feeds.indexOf(id);
1075                                 if (idx != -1 && idx < feeds.length) {
1076                                         return feeds[idx+1];
1077                                 } else {
1078                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1079                                 }
1080                         } else {
1081                                 if (is_cat) id = "CAT:" + id;
1082                                 var idx = feeds.indexOf(id);
1083                                 if (idx > 0) {
1084                                         return feeds[idx-1];
1085                                 } else {
1086                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1087                                 }
1088                         }
1089
1090                 }
1091
1092         } catch (e) {
1093                 exception_error("getRelativeFeedId2", e);
1094         }
1095 }
1096
1097 function checkboxToggleElement(elem, id) {
1098         if (elem.checked) {
1099                 Effect.Appear(id, {duration : 0.5});
1100         } else {
1101                 Effect.Fade(id, {duration : 0.5});
1102         }
1103 }
1104
1105 function dropboxSelect(e, v) {
1106         for (i = 0; i < e.length; i++) {
1107                 if (e[i].value == v) {
1108                         e.selectedIndex = i;
1109                         break;
1110                 }
1111         }
1112 }
1113
1114 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1115 // bugfixed just a little bit :-)
1116 function getURLParam(strParamName){
1117   var strReturn = "";
1118   var strHref = window.location.href;
1119
1120   if (strHref.indexOf("#") == strHref.length-1) {
1121                 strHref = strHref.substring(0, strHref.length-1);
1122   }
1123
1124   if ( strHref.indexOf("?") > -1 ){
1125     var strQueryString = strHref.substr(strHref.indexOf("?"));
1126     var aQueryString = strQueryString.split("&");
1127     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1128       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1129         var aParam = aQueryString[iParam].split("=");
1130         strReturn = aParam[1];
1131         break;
1132       }
1133     }
1134   }
1135   return strReturn;
1136 }
1137
1138 function leading_zero(p) {
1139         var s = String(p);
1140         if (s.length == 1) s = "0" + s;
1141         return s;
1142 }
1143
1144 function make_timestamp() {
1145         var d = new Date();
1146
1147         return leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1148                         ":" + leading_zero(d.getSeconds());
1149 }
1150
1151
1152 function closeErrorBox() {
1153
1154         if (Element.visible("errorBoxShadow")) {
1155                 Element.hide("dialog_overlay");
1156                 Element.hide("errorBoxShadow");
1157
1158                 enableHotkeys();
1159         }
1160
1161         return false;
1162 }
1163
1164 function closeInfoBox(cleanup) {
1165
1166         try {
1167                 enableHotkeys();
1168
1169                 if (Element.visible("infoBoxShadow")) {
1170                         Element.hide("dialog_overlay");
1171                         Element.hide("infoBoxShadow");
1172
1173                         if (cleanup) $("infoBox").innerHTML = "&nbsp;";
1174                 }
1175         } catch (e) {
1176                 exception_error("closeInfoBox", e);
1177         }
1178
1179         return false;
1180 }
1181
1182
1183 function displayDlg(id, param, callback) {
1184
1185         notify_progress("Loading, please wait...", true);
1186
1187         disableHotkeys();
1188
1189         var query = "?op=dlg&id=" +
1190                 param_escape(id) + "&param=" + param_escape(param);
1191
1192         new Ajax.Request("backend.php", {
1193                 parameters: query,
1194                 onComplete: function (transport) {
1195                         infobox_callback2(transport);
1196                         if (callback) callback(transport);
1197                 } });
1198
1199         return false;
1200 }
1201
1202 function infobox_submit_callback2(transport) {
1203         closeInfoBox();
1204
1205         try {
1206                 // called from prefs, reload tab
1207                 if (typeof active_tab != 'undefined' && active_tab) {
1208                         selectTab(active_tab, false);
1209                 }
1210         } catch (e) { }
1211
1212         if (transport.responseText) {
1213                 notify_info(transport.responseText);
1214         }
1215 }
1216
1217 function infobox_callback2(transport) {
1218         try {
1219
1220                 console.log("infobox_callback2");
1221
1222                 var box = $('infoBox');
1223
1224                 if (box) {
1225
1226                         if (!getInitParam("infobox_disable_overlay")) {
1227                                 Element.show("dialog_overlay");
1228                         }
1229
1230                         box.innerHTML=transport.responseText;
1231                         Element.show("infoBoxShadow");
1232                         //Effect.SlideDown("infoBoxShadow", {duration : 1.0});
1233
1234
1235                 }
1236
1237                 disableHotkeys();
1238
1239                 notify("");
1240         } catch (e) {
1241                 exception_error("infobox_callback2", e);
1242         }
1243 }
1244
1245 function createFilter() {
1246
1247         try {
1248
1249                 var form = document.forms['filter_add_form'];
1250                 var reg_exp = form.reg_exp.value;
1251
1252                 if (reg_exp == "") {
1253                         alert(__("Can't add filter: nothing to match on."));
1254                         return false;
1255                 }
1256
1257                 var query = Form.serialize("filter_add_form");
1258
1259                 // we can be called from some other tab in Prefs
1260                 if (typeof active_tab != 'undefined' && active_tab) {
1261                         active_tab = "filterConfig";
1262                 }
1263
1264                 new Ajax.Request("backend.php?" + query, {
1265                         onComplete: function (transport) {
1266                                 infobox_submit_callback2(transport);
1267                         } });
1268
1269                 return true;
1270
1271         } catch (e) {
1272                 exception_error("createFilter", e);
1273         }
1274 }
1275
1276 function isValidURL(s) {
1277         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1278 }
1279
1280 function subscribeToFeed() {
1281
1282         try {
1283
1284         var form = document.forms['feed_add_form'];
1285         var feed_url = form.feed_url.value;
1286
1287         if (feed_url == "") {
1288                 alert(__("Can't subscribe: no feed URL given."));
1289                 return false;
1290         }
1291
1292         notify_progress(__("Subscribing to feed..."), true);
1293
1294         var query = Form.serialize("feed_add_form");
1295
1296         console.log("subscribe q: " + query);
1297
1298         Form.disable("feed_add_form");
1299
1300         new Ajax.Request("backend.php", {
1301                 parameters: query,
1302                 onComplete: function(transport) {
1303                         //dlg_frefresh_callback(transport);
1304
1305                         try {
1306
1307                                 if (!transport.responseXML)
1308                                         console.log(transport.responseText);
1309
1310                                 var result = transport.responseXML.getElementsByTagName('result')[0];
1311                                 var rc = parseInt(result.getAttribute('code'));
1312
1313                                 Form.enable("feed_add_form");
1314
1315                                 notify('');
1316
1317                                 switch (rc) {
1318                                 case 1:
1319                                         closeInfoBox();
1320                                         notify_info(__("Subscribed to %s").replace("%s", feed_url));
1321
1322                                         if (inPreferences()) {
1323                                                 updateFeedList();
1324                                         } else {
1325                                                 setTimeout('updateFeedList(false, false)', 50);
1326                                         }
1327                                         break;
1328                                 case 2:
1329                                         alert(__("Specified URL seems to be invalid."));
1330                                         break;
1331                                 case 3:
1332                                         alert(__("Specified URL doesn't seem to contain any feeds."));
1333                                         break;
1334                                 case 4:
1335                                         new Ajax.Request("backend.php", {
1336                                                 parameters: 'op=rpc&subop=extractfeedurls&url=' + encodeURIComponent(feed_url),
1337                                                 onComplete: function(transport) {
1338                                                         var result = transport.responseXML.getElementsByTagName('urls')[0];
1339                                                         var feeds = JSON.parse(result.firstChild.nodeValue);
1340                                                         var select = document.getElementById("faad_feeds_container_select");
1341
1342                                                         while (select.hasChildNodes()) {
1343                                                                 select.removeChild(elem.firstChild);
1344                                                         }
1345                                                         var count = 0;
1346                                                         for (var feedUrl in feeds) {
1347                                                                 select.insert(new Option(feeds[feedUrl], feedUrl, false));
1348                                                                 count++;
1349                                                         }
1350                                                         if (count > 5) count = 5;
1351                                                         select.size = count;
1352
1353                                                         Effect.Appear('fadd_feeds_container', {duration : 0.5});
1354                                                 }
1355                                         });
1356                                         break;
1357                                 case 5:
1358                                         alert(__("Couldn't download the specified URL."));
1359                                         break;
1360                                 case 0:
1361                                         alert(__("You are already subscribed to this feed."));
1362                                         break;
1363                                 }
1364
1365                         } catch (e) {
1366                                 exception_error("subscribeToFeed", e);
1367                         }
1368
1369                 } });
1370
1371         } catch (e) {
1372                 exception_error("subscribeToFeed", e);
1373         }
1374
1375         return false;
1376 }
1377
1378 function filterCR(e, f)
1379 {
1380      var key;
1381
1382      if(window.event)
1383           key = window.event.keyCode;     //IE
1384      else
1385           key = e.which;     //firefox
1386
1387         if (key == 13) {
1388                 if (typeof f != 'undefined') {
1389                         f();
1390                         return false;
1391                 } else {
1392                         return false;
1393                 }
1394         } else {
1395                 return true;
1396         }
1397 }
1398
1399 function getInitParam(key) {
1400         return init_params[key];
1401 }
1402
1403 function setInitParam(key, value) {
1404         init_params[key] = value;
1405 }
1406
1407 function fatalError(code, msg, ext_info) {
1408         try {
1409
1410                 if (!ext_info) ext_info = "N/A";
1411
1412                 if (code == 6) {
1413                         window.location.href = "tt-rss.php";
1414                 } else if (code == 5) {
1415                         window.location.href = "db-updater.php";
1416                 } else {
1417
1418                         if (msg == "") msg = "Unknown error";
1419
1420                         var ebc = $("xebContent");
1421
1422                         if (ebc) {
1423
1424                                 Element.show("dialog_overlay");
1425                                 Element.show("errorBoxShadow");
1426                                 Element.hide("xebBtn");
1427
1428                                 if (ext_info) {
1429                                         if (ext_info.responseText) {
1430                                                 ext_info = ext_info.responseText;
1431                                         }
1432                                 }
1433
1434                                 ebc.innerHTML =
1435                                         "<div><b>Error message:</b></div>" +
1436                                         "<pre>" + msg + "</pre>" +
1437                                         "<div><b>Additional information:</b></div>" +
1438                                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
1439                         }
1440                 }
1441
1442         } catch (e) {
1443                 exception_error("fatalError", e);
1444         }
1445 }
1446
1447 function getFeedName(id, is_cat) {
1448         var e;
1449
1450         if (is_cat) {
1451                 e = $("FCATN-" + id);
1452         } else {
1453                 e = $("FEEDN-" + id);
1454         }
1455         if (e) {
1456                 return e.innerHTML.stripTags();
1457         } else {
1458                 return null;
1459         }
1460 }
1461
1462 function filterDlgCheckType(sender) {
1463
1464         try {
1465
1466                 var ftype = sender[sender.selectedIndex].value;
1467
1468                 var form = document.forms["filter_add_form"];
1469
1470                 if (!form) {
1471                         form = document.forms["filter_edit_form"];
1472                 }
1473
1474                 if (!form) {
1475                         console.log("filterDlgCheckType: can't find form!");
1476                         return;
1477                 }
1478
1479                 // if selected filter type is 5 (Date) enable the modifier dropbox
1480                 if (ftype == 5) {
1481                         Element.show("filter_dlg_date_mod_box");
1482                         Element.show("filter_dlg_date_chk_box");
1483                 } else {
1484                         Element.hide("filter_dlg_date_mod_box");
1485                         Element.hide("filter_dlg_date_chk_box");
1486
1487                 }
1488
1489         } catch (e) {
1490                 exception_error("filterDlgCheckType", e);
1491         }
1492
1493 }
1494
1495 function filterDlgCheckAction(sender) {
1496
1497         try {
1498
1499                 var action = sender[sender.selectedIndex].value;
1500
1501                 var form = document.forms["filter_add_form"];
1502
1503                 if (!form) {
1504                         form = document.forms["filter_edit_form"];
1505                 }
1506
1507                 if (!form) {
1508                         console.log("filterDlgCheckAction: can't find form!");
1509                         return;
1510                 }
1511
1512                 var action_param = $("filter_dlg_param_box");
1513
1514                 if (!action_param) {
1515                         console.log("filterDlgCheckAction: can't find action param box!");
1516                         return;
1517                 }
1518
1519                 // if selected action supports parameters, enable params field
1520                 if (action == 4 || action == 6 || action == 7) {
1521                         Element.show(action_param);
1522                         if (action != 7) {
1523                                 Element.show(form.action_param);
1524                                 Element.hide(form.action_param_label);
1525                         } else {
1526                                 Element.show(form.action_param_label);
1527                                 Element.hide(form.action_param);
1528                         }
1529                 } else {
1530                         Element.hide(action_param);
1531                 }
1532
1533         } catch (e) {
1534                 exception_error("filterDlgCheckAction", e);
1535         }
1536
1537 }
1538
1539 function filterDlgCheckDate() {
1540         try {
1541                 var form = document.forms["filter_add_form"];
1542
1543                 if (!form) {
1544                         form = document.forms["filter_edit_form"];
1545                 }
1546
1547                 if (!form) {
1548                         console.log("filterDlgCheckAction: can't find form!");
1549                         return;
1550                 }
1551
1552                 var reg_exp = form.reg_exp.value;
1553
1554                 var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
1555
1556                 new Ajax.Request("backend.php", {
1557                         parameters: query,
1558                         onComplete: function(transport) {
1559
1560                                 var form = document.forms["filter_add_form"];
1561
1562                                 if (!form) {
1563                                         form = document.forms["filter_edit_form"];
1564                                 }
1565
1566                                 if (transport.responseXML) {
1567                                         var result = transport.responseXML.getElementsByTagName("result")[0];
1568
1569                                         if (result && result.firstChild) {
1570                                                 if (result.firstChild.nodeValue == "1") {
1571
1572                                                         new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
1573
1574                                                         return;
1575                                                 }
1576                                         }
1577                                 }
1578
1579                                 new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
1580
1581                         } });
1582
1583
1584         } catch (e) {
1585                 exception_error("filterDlgCheckDate", e);
1586         }
1587 }
1588
1589 function explainError(code) {
1590         return displayDlg("explainError", code);
1591 }
1592
1593 // this only searches loaded headlines list, not in CDM
1594 function getRelativePostIds(id, limit) {
1595
1596         if (!limit) limit = 3;
1597
1598         console.log("getRelativePostIds: " + id + " limit=" + limit);
1599
1600         var ids = new Array();
1601         var container = $("headlinesList");
1602
1603         if (container) {
1604                 var rows = container.rows;
1605
1606                 for (var i = 0; i < rows.length; i++) {
1607                         var r_id = rows[i].id.replace("RROW-", "");
1608
1609                         if (r_id == id) {
1610                                 for (var k = 1; k <= limit; k++) {
1611                                         var nid = false;
1612
1613                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1614                                         if (nid) ids.push(nid);
1615
1616                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1617                                         if (nid) ids.push(nid);
1618                                 }
1619
1620                                 return ids;
1621                         }
1622                 }
1623         }
1624
1625         return false;
1626 }
1627
1628 function openArticleInNewWindow(id) {
1629         try {
1630                 console.log("openArticleInNewWindow: " + id);
1631
1632                 var query = "?op=rpc&subop=getArticleLink&id=" + id;
1633                 var wname = "ttrss_article_" + id;
1634
1635                 console.log(query + " " + wname);
1636
1637                 var w = window.open("", wname);
1638
1639                 if (!w) notify_error("Failed to open window for the article");
1640
1641                 new Ajax.Request("backend.php", {
1642                         parameters: query,
1643                         onComplete: function(transport) {
1644
1645                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1646                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1647
1648                                         console.log("open_article received link: " + link);
1649
1650                                         if (link && id) {
1651
1652                                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
1653
1654                                                 console.log("link url: " + link.firstChild.nodeValue + ", wname " + wname);
1655
1656                                                 var w = window.open(link.firstChild.nodeValue, wname);
1657
1658                                                 if (!w) { notify_error("Failed to load article in new window"); }
1659
1660                                                 if (id) {
1661                                                         id = id.firstChild.nodeValue;
1662                                                         if (!$("headlinesList")) {
1663                                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
1664                                                         }
1665                                                 }
1666                                         } else {
1667                                                 notify_error("Can't open article: received invalid article link");
1668                                         }
1669                                 } });
1670
1671         } catch (e) {
1672                 exception_error("openArticleInNewWindow", e);
1673         }
1674 }
1675
1676 function isCdmMode() {
1677         return !$("headlinesList");
1678 }
1679
1680 function getSelectedArticleIds2() {
1681         var rows = new Array();
1682         var cdm_mode = isCdmMode();
1683
1684         if (cdm_mode) {
1685                 rows = cdmGetSelectedArticles();
1686         } else {
1687                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1688         }
1689
1690         var ids = new Array();
1691
1692         for (var i = 0; i < rows.length; i++) {
1693                 var chk = $("RCHK-" + rows[i]);
1694                 if (chk && chk.checked) {
1695                         ids.push(rows[i]);
1696                 }
1697         }
1698
1699         return ids;
1700 }
1701
1702 function displayHelpInfobox(topic_id) {
1703
1704         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1705
1706         var w = window.open(url, "ttrss_help",
1707                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1708
1709 }
1710
1711 function loading_set_progress(p) {
1712         try {
1713                 if (p < last_progress_point || !Element.visible("overlay")) return;
1714
1715                 console.log("loading_set_progress : " + p + " (" + last_progress_point + ")");
1716
1717                 var o = $("l_progress_i");
1718
1719 //              o.style.width = (p * 2) + "px";
1720
1721                 new Effect.Scale(o, p, {
1722                         scaleY : false,
1723                         scaleFrom : last_progress_point,
1724                         scaleMode: { originalWidth : 200 },
1725                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1726
1727                 last_progress_point = p;
1728
1729         } catch (e) {
1730                 exception_error("loading_set_progress", e);
1731         }
1732 }
1733
1734 function remove_splash() {
1735         if (Element.visible("overlay")) {
1736                 console.log("about to remove splash, OMG!");
1737                 Element.hide("overlay");
1738                 console.log("removed splash!");
1739         }
1740 }
1741
1742 function getSelectedFeedsFromBrowser() {
1743
1744         var list = $("browseFeedList");
1745
1746         var selected = new Array();
1747
1748         for (i = 0; i < list.childNodes.length; i++) {
1749                 var child = list.childNodes[i];
1750                 if (child.id && child.id.match("FBROW-")) {
1751                         var id = child.id.replace("FBROW-", "");
1752
1753                         var cb = $("FBCHK-" + id);
1754
1755                         if (cb.checked) {
1756                                 selected.push(id);
1757                         }
1758                 }
1759         }
1760
1761         return selected;
1762 }
1763
1764 function updateFeedBrowser() {
1765         try {
1766
1767                 var query = Form.serialize("feed_browser");
1768
1769                 Element.show('feed_browser_spinner');
1770
1771                 new Ajax.Request("backend.php", {
1772                         parameters: query,
1773                         onComplete: function(transport) {
1774                                 notify('');
1775
1776                                 Element.hide('feed_browser_spinner');
1777
1778                                 var c = $("browseFeedList");
1779                                 var r = transport.responseXML.getElementsByTagName("content")[0];
1780                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
1781                                 var mode = transport.responseXML.getElementsByTagName("mode")[0];
1782
1783                                 if (c && r) {
1784                                         c.innerHTML = r.firstChild.nodeValue;
1785                                 }
1786
1787                                 if (parseInt(mode.getAttribute("value")) == 2) {
1788                                         Element.show('feed_archive_remove');
1789                                 } else {
1790                                         Element.hide('feed_archive_remove');
1791                                 }
1792
1793                         } });
1794
1795         } catch (e) {
1796                 exception_error("updateFeedBrowser", e);
1797         }
1798
1799 }
1800
1801 function transport_error_check(transport) {
1802         try {
1803                 if (transport.responseXML) {
1804                         var error = transport.responseXML.getElementsByTagName("error")[0];
1805
1806                         if (error) {
1807                                 var code = error.getAttribute("error-code");
1808                                 var msg = error.getAttribute("error-msg");
1809                                 if (code != 0) {
1810                                         fatalError(code, msg);
1811                                         return false;
1812                                 }
1813                         }
1814                 }
1815         } catch (e) {
1816                 exception_error("check_for_error_xml", e);
1817         }
1818         return true;
1819 }
1820
1821 function strip_tags(s) {
1822         return s.replace(/<\/?[^>]+(>|$)/g, "");
1823 }
1824
1825 function truncate_string(s, length) {
1826         if (!length) length = 30;
1827         var tmp = s.substring(0, length);
1828         if (s.length > length) tmp += "&hellip;";
1829         return tmp;
1830 }
1831
1832 function hotkey_prefix_timeout() {
1833         try {
1834
1835                 var date = new Date();
1836                 var ts = Math.round(date.getTime() / 1000);
1837
1838                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
1839                         console.log("hotkey_prefix seems to be stuck, aborting");
1840                         hotkey_prefix_pressed = false;
1841                         hotkey_prefix = false;
1842                         Element.hide('cmdline');
1843                 }
1844
1845                 setTimeout("hotkey_prefix_timeout()", 1000);
1846
1847         } catch  (e) {
1848                 exception_error("hotkey_prefix_timeout", e);
1849         }
1850 }
1851
1852 function hideAuxDlg() {
1853         try {
1854                 Element.hide('auxDlg');
1855         } catch (e) {
1856                 exception_error("hideAuxDlg", e);
1857         }
1858 }
1859
1860 function displayNewContentPrompt(id) {
1861         try {
1862
1863                 var msg = "<a href='#' onclick='viewfeed("+id+")'>" +
1864                         __("New articles available in this feed (click to show)") + "</a>";
1865
1866                 msg = msg.replace("%s", getFeedName(id));
1867
1868                 $('auxDlg').innerHTML = msg;
1869
1870                 new Effect.Appear('auxDlg', {duration : 0.5});
1871
1872         } catch (e) {
1873                 exception_error("displayNewContentPrompt", e);
1874         }
1875 }
1876
1877 function feedBrowserSubscribe() {
1878         try {
1879
1880                 var selected = getSelectedFeedsFromBrowser();
1881
1882                 var mode = document.forms['feed_browser'].mode;
1883
1884                 mode = mode[mode.selectedIndex].value;
1885
1886                 if (selected.length > 0) {
1887                         closeInfoBox();
1888
1889                         notify_progress("Loading, please wait...", true);
1890
1891                         var query = "?op=rpc&subop=massSubscribe&ids="+
1892                                 param_escape(selected.toString()) + "&mode=" + param_escape(mode);
1893
1894                         new Ajax.Request("backend.php", {
1895                                 parameters: query,
1896                                 onComplete: function(transport) {
1897
1898                                         var nf = transport.responseXML.getElementsByTagName('num-feeds')[0];
1899                                         var nf_value = nf.getAttribute("value");
1900
1901                                         notify_info(__("Subscribed to %d feed(s).").replace("%d", nf_value));
1902
1903                                         if (inPreferences()) {
1904                                                 updateFeedList();
1905                                         } else {
1906                                                 setTimeout('updateFeedList(false, false)', 50);
1907                                         }
1908                                 } });
1909
1910                 } else {
1911                         alert(__("No feeds are selected."));
1912                 }
1913
1914         } catch (e) {
1915                 exception_error("feedBrowserSubscribe", e);
1916         }
1917 }
1918
1919 function feedArchiveRemove() {
1920         try {
1921
1922                 var selected = getSelectedFeedsFromBrowser();
1923
1924                 if (selected.length > 0) {
1925
1926                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1927
1928                         if (confirm(pr)) {
1929                                 Element.show('feed_browser_spinner');
1930
1931                                 var query = "?op=rpc&subop=remarchived&ids=" +
1932                                         param_escape(selected.toString());;
1933
1934                                 new Ajax.Request("backend.php", {
1935                                         parameters: query,
1936                                         onComplete: function(transport) {
1937                                                 updateFeedBrowser();
1938                                         } });
1939                         }
1940
1941                 } else {
1942                         alert(__("No feeds are selected."));
1943                 }
1944
1945         } catch (e) {
1946                 exception_error("feedArchiveRemove", e);
1947         }
1948 }
1949
1950 function uploadIconHandler(rc) {
1951         try {
1952                 switch (rc) {
1953                         case 0:
1954                                 notify_info("Upload complete.");
1955                                 if (inPreferences()) {
1956                                         updateFeedList();
1957                                 } else {
1958                                         setTimeout('updateFeedList(false, false)', 50);
1959                                 }
1960                                 break;
1961                         case 1:
1962                                 notify_error("Upload failed: icon is too big.");
1963                                 break;
1964                         case 2:
1965                                 notify_error("Upload failed.");
1966                                 break;
1967                 }
1968
1969         } catch (e) {
1970                 exception_error("uploadIconHandler", e);
1971         }
1972 }
1973
1974 function removeFeedIcon(id) {
1975
1976         try {
1977
1978                 if (confirm(__("Remove stored feed icon?"))) {
1979                         var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
1980
1981                         console.log(query);
1982
1983                         notify_progress("Removing feed icon...", true);
1984
1985                         new Ajax.Request("backend.php", {
1986                                 parameters: query,
1987                                 onComplete: function(transport) {
1988                                         notify_info("Feed icon removed.");
1989                                         if (inPreferences()) {
1990                                                 updateFeedList();
1991                                         } else {
1992                                                 setTimeout('updateFeedList(false, false)', 50);
1993                                         }
1994                                 } });
1995                 }
1996
1997                 return false;
1998         } catch (e) {
1999                 exception_error("uploadFeedIcon", e);
2000         }
2001 }
2002
2003 function uploadFeedIcon() {
2004
2005         try {
2006
2007                 var file = $("icon_file");
2008
2009                 if (file.value.length == 0) {
2010                         alert(__("Please select an image file to upload."));
2011                 } else {
2012                         if (confirm(__("Upload new icon for this feed?"))) {
2013                                 notify_progress("Uploading, please wait...", true);
2014                                 return true;
2015                         }
2016                 }
2017
2018                 return false;
2019
2020         } catch (e) {
2021                 exception_error("uploadFeedIcon", e);
2022         }
2023 }
2024
2025 function addLabel(select, callback) {
2026
2027         try {
2028
2029                 var caption = prompt(__("Please enter label caption:"), "");
2030
2031                 if (caption != undefined) {
2032
2033                         if (caption == "") {
2034                                 alert(__("Can't create label: missing caption."));
2035                                 return false;
2036                         }
2037
2038                         var query = "?op=pref-labels&subop=add&caption=" +
2039                                 param_escape(caption);
2040
2041                         if (select)
2042                                 query += "&output=select";
2043
2044                         notify_progress("Loading, please wait...", true);
2045
2046                         if (inPreferences() && !select) active_tab = "labelConfig";
2047
2048                         new Ajax.Request("backend.php", {
2049                                 parameters: query,
2050                                 onComplete: function(transport) {
2051                                         if (callback) {
2052                                                 callback(transport);
2053                                         } else if (inPreferences()) {
2054                                                 infobox_submit_callback2(transport);
2055                                         } else {
2056                                                 updateFeedList();
2057                                         }
2058                         } });
2059
2060                 }
2061
2062         } catch (e) {
2063                 exception_error("addLabel", e);
2064         }
2065 }
2066
2067 function quickAddFeed() {
2068         displayDlg('quickAddFeed', '',
2069            function () {$('feed_url').focus();});
2070 }
2071
2072 function quickAddFilter() {
2073         displayDlg('quickAddFilter', '',
2074            function () {document.forms['filter_add_form'].reg_exp.focus();});
2075 }
2076
2077 function unsubscribeFeed(feed_id, title) {
2078
2079         var msg = __("Unsubscribe from %s?").replace("%s", title);
2080
2081         if (title == undefined || confirm(msg)) {
2082                 notify_progress("Removing feed...");
2083
2084                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
2085
2086                 new Ajax.Request("backend.php", {
2087                         parameters: query,
2088                         onComplete: function(transport) {
2089
2090                                         closeInfoBox();
2091
2092                                         if (inPreferences()) {
2093                                                 updateFeedList();
2094                                         } else {
2095                                                 dlg_frefresh_callback(transport, feed_id);
2096                                         }
2097
2098                                 } });
2099         }
2100
2101         return false;
2102 }
2103
2104
2105 function backend_sanity_check_callback(transport) {
2106
2107         try {
2108
2109                 if (sanity_check_done) {
2110                         fatalError(11, "Sanity check request received twice. This can indicate "+
2111                       "presence of Firebug or some other disrupting extension. "+
2112                                 "Please disable it and try again.");
2113                         return;
2114                 }
2115
2116                 if (!transport.responseXML) {
2117                         if (!store) {
2118                                 fatalError(3, "Sanity check: Received reply is not XML",
2119                                         transport.responseText);
2120                                 return;
2121                         } else {
2122                                 init_offline();
2123                                 return;
2124                         }
2125                 }
2126
2127                 if (getURLParam("offline")) {
2128                         return init_offline();
2129                 }
2130
2131                 var reply = transport.responseXML.getElementsByTagName("error")[0];
2132
2133                 if (!reply) {
2134                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
2135                         return;
2136                 }
2137
2138                 var error_code = reply.getAttribute("error-code");
2139
2140                 if (error_code && error_code != 0) {
2141                         return fatalError(error_code, reply.getAttribute("error-msg"));
2142                 }
2143
2144                 console.log("sanity check ok");
2145
2146                 var params = transport.responseXML.getElementsByTagName("init-params")[0];
2147
2148                 if (params) {
2149                         console.log('reading init-params...');
2150
2151                         params = JSON.parse(params.firstChild.nodeValue);
2152
2153                         if (params) {
2154                                 for (var i = 0; i < params.length; i++) {
2155
2156                                         var k = params[i].param;
2157                                         var v = params[i].value;
2158
2159                                         if (getURLParam('debug')) console.log(k + " => " + v);
2160                                         init_params[k] = v;
2161
2162                                         if (db) {
2163                                                 db.execute("DELETE FROM init_params WHERE key = ?", [k]);
2164                                                 db.execute("INSERT INTO init_params (key,value) VALUES (?, ?)",
2165                                                         [k, v]);
2166                                         }
2167                                 }
2168                         }
2169                 }
2170
2171                 sanity_check_done = true;
2172
2173                 init_second_stage();
2174
2175         } catch (e) {
2176                 exception_error("backend_sanity_check_callback", e, transport);
2177         }
2178 }
2179
2180 function has_local_storage() {
2181         try {
2182                 return 'localStorage' in window && window['localStorage'] != null;
2183         } catch (e) {
2184                 return false;
2185         }
2186 }
2187
2188 function catSelectOnChange(elem) {
2189         try {
2190                 var value = elem[elem.selectedIndex].value;
2191                 var def = elem.getAttribute('default');
2192
2193                 if (value == "ADD_CAT") {
2194
2195                         if (def)
2196                                 dropboxSelect(elem, def);
2197                         else
2198                                 elem.selectedIndex = 0;
2199
2200                         quickAddCat(elem);
2201                 }
2202
2203         } catch (e) {
2204                 exception_error("catSelectOnChange", e);
2205         }
2206 }
2207
2208 function quickAddCat(elem) {
2209         try {
2210                 var cat = prompt(__("Please enter category title:"));
2211
2212                 if (cat) {
2213
2214                         var query = "?op=rpc&subop=quickAddCat&cat=" + param_escape(cat);
2215
2216                         notify_progress("Loading, please wait...", true);
2217
2218                         new Ajax.Request("backend.php", {
2219                                 parameters: query,
2220                                 onComplete: function (transport) {
2221                                         var response = transport.responseXML;
2222                                         var select = response.getElementsByTagName("select")[0];
2223                                         var options = select.getElementsByTagName("option");
2224
2225                                         dropbox_replace_options(elem, options);
2226
2227                                         notify('');
2228
2229                         } });
2230
2231                 }
2232
2233         } catch (e) {
2234                 exception_error("quickAddCat", e);
2235         }
2236 }
2237
2238 function genUrlChangeKey(feed, is_cat) {
2239
2240         try {
2241                 var ok = confirm(__("Generate new syndication address for this feed?"));
2242
2243                 if (ok) {
2244
2245                         notify_progress("Trying to change address...", true);
2246
2247                         var query = "?op=rpc&subop=regenFeedKey&id=" + param_escape(feed) +
2248                                 "&is_cat=" + param_escape(is_cat);
2249
2250                         new Ajax.Request("backend.php", {
2251                                 parameters: query,
2252                                 onComplete: function(transport) {
2253                                                 var new_link = transport.responseXML.getElementsByTagName("link")[0];
2254
2255                                                 var e = $('gen_feed_url');
2256
2257                                                 if (new_link) {
2258
2259                                                         new_link = new_link.firstChild.nodeValue;
2260
2261                                                         e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
2262                                                                 "&amp;key=" + new_link);
2263
2264                                                         e.href = e.href.replace(/\&amp;key=.*$/,
2265                                                                 "&amp;key=" + new_link);
2266
2267                                                         new Effect.Highlight(e);
2268
2269                                                         notify('');
2270
2271                                                 } else {
2272                                                         notify_error("Could not change feed URL.");
2273                                                 }
2274                                 } });
2275                 }
2276         } catch (e) {
2277                 exception_error("genUrlChangeKey", e);
2278         }
2279         return false;
2280 }
2281
2282 function labelSelectOnChange(elem) {
2283         try {
2284                 var value = elem[elem.selectedIndex].value;
2285                 var def = elem.getAttribute('default');
2286
2287                 if (value == "ADD_LABEL") {
2288
2289                         if (def)
2290                                 dropboxSelect(elem, def);
2291                         else
2292                                 elem.selectedIndex = 0;
2293
2294                         addLabel(elem, function(transport) {
2295
2296                                         try {
2297
2298                                                 var response = transport.responseXML;
2299                                                 var select = response.getElementsByTagName("select")[0];
2300                                                 var options = select.getElementsByTagName("option");
2301
2302                                                 dropbox_replace_options(elem, options);
2303
2304                                                 notify('');
2305                                         } catch (e) {
2306                                                 exception_error("addLabel", e);
2307                                         }
2308                         });
2309                 }
2310
2311         } catch (e) {
2312                 exception_error("labelSelectOnChange", e);
2313         }
2314 }
2315
2316 function dropbox_replace_options(elem, options) {
2317
2318         try {
2319                 while (elem.hasChildNodes())
2320                         elem.removeChild(elem.firstChild);
2321
2322                 var sel_idx = -1;
2323
2324                 for (var i = 0; i < options.length; i++) {
2325                         var text = options[i].firstChild.nodeValue;
2326                         var value = options[i].getAttribute("value");
2327
2328                         if (value == undefined) value = text;
2329
2330                         var issel = options[i].getAttribute("selected") == "1";
2331
2332                         var option = new Option(text, value, issel);
2333
2334                         if (options[i].getAttribute("disabled"))
2335                                 option.setAttribute("disabled", true);
2336
2337                         elem.insert(option);
2338
2339                         if (issel) sel_idx = i;
2340                 }
2341
2342                 // Chrome doesn't seem to just select stuff when you pass new Option(x, y, true)
2343                 if (sel_idx >= 0) elem.selectedIndex = sel_idx;
2344
2345         } catch (e) {
2346                 exception_error("dropbox_replace_options", e);
2347         }
2348 }