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