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                         notify('');
1306
1307                         var result = transport.responseXML.getElementsByTagName('result')[0];
1308                         var rc = parseInt(result.getAttribute('code'));
1309
1310                         Form.enable("feed_add_form");
1311
1312                         switch (rc) {
1313                         case 1:
1314                                 closeInfoBox();
1315                                 notify_info(__("Subscribed to %s").replace("%s", feed_url));
1316
1317                                 if (inPreferences()) {
1318                                         updateFeedList();
1319                                 } else {
1320                                         setTimeout('updateFeedList(false, false)', 50);
1321                                 }
1322                                 break;
1323                         case 2:
1324                         case 3:
1325                                 alert(__("Can't subscribe to the specified URL."));
1326                                 break;
1327                         case 0:
1328                                 alert(__("You are already subscribed to this feed."));
1329                                 break;
1330                         }
1331
1332                 } });
1333
1334         } catch (e) {
1335                 exception_error("subscribeToFeed", e);
1336         }
1337
1338         return false;
1339 }
1340
1341 function filterCR(e, f)
1342 {
1343      var key;
1344
1345      if(window.event)
1346           key = window.event.keyCode;     //IE
1347      else
1348           key = e.which;     //firefox
1349
1350         if (key == 13) {
1351                 if (typeof f != 'undefined') {
1352                         f();
1353                         return false;
1354                 } else {
1355                         return false;
1356                 }
1357         } else {
1358                 return true;
1359         }
1360 }
1361
1362 function getInitParam(key) {
1363         return init_params[key];
1364 }
1365
1366 function setInitParam(key, value) {
1367         init_params[key] = value;
1368 }
1369
1370 function fatalError(code, msg, ext_info) {
1371         try {
1372
1373                 if (!ext_info) ext_info = "N/A";
1374
1375                 if (code == 6) {
1376                         window.location.href = "tt-rss.php";
1377                 } else if (code == 5) {
1378                         window.location.href = "update.php";
1379                 } else {
1380
1381                         if (msg == "") msg = "Unknown error";
1382
1383                         var ebc = $("xebContent");
1384
1385                         if (ebc) {
1386
1387                                 Element.show("dialog_overlay");
1388                                 Element.show("errorBoxShadow");
1389                                 Element.hide("xebBtn");
1390
1391                                 if (ext_info) {
1392                                         if (ext_info.responseText) {
1393                                                 ext_info = ext_info.responseText;
1394                                         }
1395                                 }
1396
1397                                 ebc.innerHTML =
1398                                         "<div><b>Error message:</b></div>" +
1399                                         "<pre>" + msg + "</pre>" +
1400                                         "<div><b>Additional information:</b></div>" +
1401                                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
1402                         }
1403                 }
1404
1405         } catch (e) {
1406                 exception_error("fatalError", e);
1407         }
1408 }
1409
1410 function getFeedName(id, is_cat) {
1411         var e;
1412
1413         if (is_cat) {
1414                 e = $("FCATN-" + id);
1415         } else {
1416                 e = $("FEEDN-" + id);
1417         }
1418         if (e) {
1419                 return e.innerHTML.stripTags();
1420         } else {
1421                 return null;
1422         }
1423 }
1424
1425 function filterDlgCheckType(sender) {
1426
1427         try {
1428
1429                 var ftype = sender[sender.selectedIndex].value;
1430
1431                 var form = document.forms["filter_add_form"];
1432
1433                 if (!form) {
1434                         form = document.forms["filter_edit_form"];
1435                 }
1436
1437                 if (!form) {
1438                         console.log("filterDlgCheckType: can't find form!");
1439                         return;
1440                 }
1441
1442                 // if selected filter type is 5 (Date) enable the modifier dropbox
1443                 if (ftype == 5) {
1444                         Element.show("filter_dlg_date_mod_box");
1445                         Element.show("filter_dlg_date_chk_box");
1446                 } else {
1447                         Element.hide("filter_dlg_date_mod_box");
1448                         Element.hide("filter_dlg_date_chk_box");
1449
1450                 }
1451
1452         } catch (e) {
1453                 exception_error("filterDlgCheckType", e);
1454         }
1455
1456 }
1457
1458 function filterDlgCheckAction(sender) {
1459
1460         try {
1461
1462                 var action = sender[sender.selectedIndex].value;
1463
1464                 var form = document.forms["filter_add_form"];
1465
1466                 if (!form) {
1467                         form = document.forms["filter_edit_form"];
1468                 }
1469
1470                 if (!form) {
1471                         console.log("filterDlgCheckAction: can't find form!");
1472                         return;
1473                 }
1474
1475                 var action_param = $("filter_dlg_param_box");
1476
1477                 if (!action_param) {
1478                         console.log("filterDlgCheckAction: can't find action param box!");
1479                         return;
1480                 }
1481
1482                 // if selected action supports parameters, enable params field
1483                 if (action == 4 || action == 6 || action == 7) {
1484                         Element.show(action_param);
1485                         if (action != 7) {
1486                                 Element.show(form.action_param);
1487                                 Element.hide(form.action_param_label);
1488                         } else {
1489                                 Element.show(form.action_param_label);
1490                                 Element.hide(form.action_param);
1491                         }
1492                 } else {
1493                         Element.hide(action_param);
1494                 }
1495
1496         } catch (e) {
1497                 exception_error("filterDlgCheckAction", e);
1498         }
1499
1500 }
1501
1502 function filterDlgCheckDate() {
1503         try {
1504                 var form = document.forms["filter_add_form"];
1505
1506                 if (!form) {
1507                         form = document.forms["filter_edit_form"];
1508                 }
1509
1510                 if (!form) {
1511                         console.log("filterDlgCheckAction: can't find form!");
1512                         return;
1513                 }
1514
1515                 var reg_exp = form.reg_exp.value;
1516
1517                 var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
1518
1519                 new Ajax.Request("backend.php", {
1520                         parameters: query,
1521                         onComplete: function(transport) {
1522
1523                                 var form = document.forms["filter_add_form"];
1524
1525                                 if (!form) {
1526                                         form = document.forms["filter_edit_form"];
1527                                 }
1528
1529                                 if (transport.responseXML) {
1530                                         var result = transport.responseXML.getElementsByTagName("result")[0];
1531
1532                                         if (result && result.firstChild) {
1533                                                 if (result.firstChild.nodeValue == "1") {
1534
1535                                                         new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
1536
1537                                                         return;
1538                                                 }
1539                                         }
1540                                 }
1541
1542                                 new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
1543
1544                         } });
1545
1546
1547         } catch (e) {
1548                 exception_error("filterDlgCheckDate", e);
1549         }
1550 }
1551
1552 function explainError(code) {
1553         return displayDlg("explainError", code);
1554 }
1555
1556 // this only searches loaded headlines list, not in CDM
1557 function getRelativePostIds(id, limit) {
1558
1559         if (!limit) limit = 3;
1560
1561         console.log("getRelativePostIds: " + id + " limit=" + limit);
1562
1563         var ids = new Array();
1564         var container = $("headlinesList");
1565
1566         if (container) {
1567                 var rows = container.rows;
1568
1569                 for (var i = 0; i < rows.length; i++) {
1570                         var r_id = rows[i].id.replace("RROW-", "");
1571
1572                         if (r_id == id) {
1573                                 for (var k = 1; k <= limit; k++) {
1574                                         var nid = false;
1575
1576                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1577                                         if (nid) ids.push(nid);
1578
1579                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1580                                         if (nid) ids.push(nid);
1581                                 }
1582
1583                                 return ids;
1584                         }
1585                 }
1586         }
1587
1588         return false;
1589 }
1590
1591 function openArticleInNewWindow(id) {
1592         try {
1593                 console.log("openArticleInNewWindow: " + id);
1594
1595                 var query = "?op=rpc&subop=getArticleLink&id=" + id;
1596                 var wname = "ttrss_article_" + id;
1597
1598                 console.log(query + " " + wname);
1599
1600                 var w = window.open("", wname);
1601
1602                 if (!w) notify_error("Failed to open window for the article");
1603
1604                 new Ajax.Request("backend.php", {
1605                         parameters: query,
1606                         onComplete: function(transport) {
1607
1608                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1609                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1610
1611                                         console.log("open_article received link: " + link);
1612
1613                                         if (link && id) {
1614
1615                                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
1616
1617                                                 console.log("link url: " + link.firstChild.nodeValue + ", wname " + wname);
1618
1619                                                 var w = window.open(link.firstChild.nodeValue, wname);
1620
1621                                                 if (!w) { notify_error("Failed to load article in new window"); }
1622
1623                                                 if (id) {
1624                                                         id = id.firstChild.nodeValue;
1625                                                         if (!$("headlinesList")) {
1626                                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
1627                                                         }
1628                                                 }
1629                                         } else {
1630                                                 notify_error("Can't open article: received invalid article link");
1631                                         }
1632                                 } });
1633
1634         } catch (e) {
1635                 exception_error("openArticleInNewWindow", e);
1636         }
1637 }
1638
1639 function isCdmMode() {
1640         return !$("headlinesList");
1641 }
1642
1643 function getSelectedArticleIds2() {
1644         var rows = new Array();
1645         var cdm_mode = isCdmMode();
1646
1647         if (cdm_mode) {
1648                 rows = cdmGetSelectedArticles();
1649         } else {
1650                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1651         }
1652
1653         var ids = new Array();
1654
1655         for (var i = 0; i < rows.length; i++) {
1656                 var chk = $("RCHK-" + rows[i]);
1657                 if (chk && chk.checked) {
1658                         ids.push(rows[i]);
1659                 }
1660         }
1661
1662         return ids;
1663 }
1664
1665 function displayHelpInfobox(topic_id) {
1666
1667         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1668
1669         var w = window.open(url, "ttrss_help",
1670                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1671
1672 }
1673
1674 function loading_set_progress(p) {
1675         try {
1676                 if (p < last_progress_point || !Element.visible("overlay")) return;
1677
1678                 console.log("loading_set_progress : " + p + " (" + last_progress_point + ")");
1679
1680                 var o = $("l_progress_i");
1681
1682 //              o.style.width = (p * 2) + "px";
1683
1684                 new Effect.Scale(o, p, {
1685                         scaleY : false,
1686                         scaleFrom : last_progress_point,
1687                         scaleMode: { originalWidth : 200 },
1688                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1689
1690                 last_progress_point = p;
1691
1692         } catch (e) {
1693                 exception_error("loading_set_progress", e);
1694         }
1695 }
1696
1697 function remove_splash() {
1698         if (Element.visible("overlay")) {
1699                 console.log("about to remove splash, OMG!");
1700                 Element.hide("overlay");
1701                 console.log("removed splash!");
1702         }
1703 }
1704
1705 function getSelectedFeedsFromBrowser() {
1706
1707         var list = $("browseFeedList");
1708
1709         var selected = new Array();
1710
1711         for (i = 0; i < list.childNodes.length; i++) {
1712                 var child = list.childNodes[i];
1713                 if (child.id && child.id.match("FBROW-")) {
1714                         var id = child.id.replace("FBROW-", "");
1715
1716                         var cb = $("FBCHK-" + id);
1717
1718                         if (cb.checked) {
1719                                 selected.push(id);
1720                         }
1721                 }
1722         }
1723
1724         return selected;
1725 }
1726
1727 function updateFeedBrowser() {
1728         try {
1729
1730                 var query = Form.serialize("feed_browser");
1731
1732                 Element.show('feed_browser_spinner');
1733
1734                 new Ajax.Request("backend.php", {
1735                         parameters: query,
1736                         onComplete: function(transport) {
1737                                 notify('');
1738
1739                                 Element.hide('feed_browser_spinner');
1740
1741                                 var c = $("browseFeedList");
1742                                 var r = transport.responseXML.getElementsByTagName("content")[0];
1743                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
1744                                 var mode = transport.responseXML.getElementsByTagName("mode")[0];
1745
1746                                 if (c && r) {
1747                                         c.innerHTML = r.firstChild.nodeValue;
1748                                 }
1749
1750                                 if (parseInt(mode.getAttribute("value")) == 2) {
1751                                         Element.show('feed_archive_remove');
1752                                 } else {
1753                                         Element.hide('feed_archive_remove');
1754                                 }
1755
1756                         } });
1757
1758         } catch (e) {
1759                 exception_error("updateFeedBrowser", e);
1760         }
1761
1762 }
1763
1764 function transport_error_check(transport) {
1765         try {
1766                 if (transport.responseXML) {
1767                         var error = transport.responseXML.getElementsByTagName("error")[0];
1768
1769                         if (error) {
1770                                 var code = error.getAttribute("error-code");
1771                                 var msg = error.getAttribute("error-msg");
1772                                 if (code != 0) {
1773                                         fatalError(code, msg);
1774                                         return false;
1775                                 }
1776                         }
1777                 }
1778         } catch (e) {
1779                 exception_error("check_for_error_xml", e);
1780         }
1781         return true;
1782 }
1783
1784 function strip_tags(s) {
1785         return s.replace(/<\/?[^>]+(>|$)/g, "");
1786 }
1787
1788 function truncate_string(s, length) {
1789         if (!length) length = 30;
1790         var tmp = s.substring(0, length);
1791         if (s.length > length) tmp += "&hellip;";
1792         return tmp;
1793 }
1794
1795 function hotkey_prefix_timeout() {
1796         try {
1797
1798                 var date = new Date();
1799                 var ts = Math.round(date.getTime() / 1000);
1800
1801                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
1802                         console.log("hotkey_prefix seems to be stuck, aborting");
1803                         hotkey_prefix_pressed = false;
1804                         hotkey_prefix = false;
1805                         Element.hide('cmdline');
1806                 }
1807
1808                 setTimeout("hotkey_prefix_timeout()", 1000);
1809
1810         } catch  (e) {
1811                 exception_error("hotkey_prefix_timeout", e);
1812         }
1813 }
1814
1815 function hideAuxDlg() {
1816         try {
1817                 Element.hide('auxDlg');
1818         } catch (e) {
1819                 exception_error("hideAuxDlg", e);
1820         }
1821 }
1822
1823 function displayNewContentPrompt(id) {
1824         try {
1825
1826                 var msg = "<a href='#' onclick='viewfeed("+id+")'>" +
1827                         __("New articles available in this feed (click to show)") + "</a>";
1828
1829                 msg = msg.replace("%s", getFeedName(id));
1830
1831                 $('auxDlg').innerHTML = msg;
1832
1833                 new Effect.Appear('auxDlg', {duration : 0.5});
1834
1835         } catch (e) {
1836                 exception_error("displayNewContentPrompt", e);
1837         }
1838 }
1839
1840 function feedBrowserSubscribe() {
1841         try {
1842
1843                 var selected = getSelectedFeedsFromBrowser();
1844
1845                 var mode = document.forms['feed_browser'].mode;
1846
1847                 mode = mode[mode.selectedIndex].value;
1848
1849                 if (selected.length > 0) {
1850                         closeInfoBox();
1851
1852                         notify_progress("Loading, please wait...", true);
1853
1854                         var query = "?op=rpc&subop=massSubscribe&ids="+
1855                                 param_escape(selected.toString()) + "&mode=" + param_escape(mode);
1856
1857                         new Ajax.Request("backend.php", {
1858                                 parameters: query,
1859                                 onComplete: function(transport) {
1860
1861                                         var nf = transport.responseXML.getElementsByTagName('num-feeds')[0];
1862                                         var nf_value = nf.getAttribute("value");
1863
1864                                         notify_info(__("Subscribed to %d feed(s).").replace("%d", nf_value));
1865
1866                                         if (inPreferences()) {
1867                                                 updateFeedList();
1868                                         } else {
1869                                                 setTimeout('updateFeedList(false, false)', 50);
1870                                         }
1871                                 } });
1872
1873                 } else {
1874                         alert(__("No feeds are selected."));
1875                 }
1876
1877         } catch (e) {
1878                 exception_error("feedBrowserSubscribe", e);
1879         }
1880 }
1881
1882 function feedArchiveRemove() {
1883         try {
1884
1885                 var selected = getSelectedFeedsFromBrowser();
1886
1887                 if (selected.length > 0) {
1888
1889                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1890
1891                         if (confirm(pr)) {
1892                                 Element.show('feed_browser_spinner');
1893
1894                                 var query = "?op=rpc&subop=remarchived&ids=" +
1895                                         param_escape(selected.toString());;
1896
1897                                 new Ajax.Request("backend.php", {
1898                                         parameters: query,
1899                                         onComplete: function(transport) {
1900                                                 updateFeedBrowser();
1901                                         } });
1902                         }
1903
1904                 } else {
1905                         alert(__("No feeds are selected."));
1906                 }
1907
1908         } catch (e) {
1909                 exception_error("feedArchiveRemove", e);
1910         }
1911 }
1912
1913 function uploadIconHandler(rc) {
1914         try {
1915                 switch (rc) {
1916                         case 0:
1917                                 notify_info("Upload complete.");
1918                                 if (inPreferences()) {
1919                                         updateFeedList();
1920                                 } else {
1921                                         setTimeout('updateFeedList(false, false)', 50);
1922                                 }
1923                                 break;
1924                         case 1:
1925                                 notify_error("Upload failed: icon is too big.");
1926                                 break;
1927                         case 2:
1928                                 notify_error("Upload failed.");
1929                                 break;
1930                 }
1931
1932         } catch (e) {
1933                 exception_error("uploadIconHandler", e);
1934         }
1935 }
1936
1937 function removeFeedIcon(id) {
1938
1939         try {
1940
1941                 if (confirm(__("Remove stored feed icon?"))) {
1942                         var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
1943
1944                         console.log(query);
1945
1946                         notify_progress("Removing feed icon...", true);
1947
1948                         new Ajax.Request("backend.php", {
1949                                 parameters: query,
1950                                 onComplete: function(transport) {
1951                                         notify_info("Feed icon removed.");
1952                                         if (inPreferences()) {
1953                                                 updateFeedList();
1954                                         } else {
1955                                                 setTimeout('updateFeedList(false, false)', 50);
1956                                         }
1957                                 } });
1958                 }
1959
1960                 return false;
1961         } catch (e) {
1962                 exception_error("uploadFeedIcon", e);
1963         }
1964 }
1965
1966 function uploadFeedIcon() {
1967
1968         try {
1969
1970                 var file = $("icon_file");
1971
1972                 if (file.value.length == 0) {
1973                         alert(__("Please select an image file to upload."));
1974                 } else {
1975                         if (confirm(__("Upload new icon for this feed?"))) {
1976                                 notify_progress("Uploading, please wait...", true);
1977                                 return true;
1978                         }
1979                 }
1980
1981                 return false;
1982
1983         } catch (e) {
1984                 exception_error("uploadFeedIcon", e);
1985         }
1986 }
1987
1988 function addLabel(select, callback) {
1989
1990         try {
1991
1992                 var caption = prompt(__("Please enter label caption:"), "");
1993
1994                 if (caption != undefined) {
1995
1996                         if (caption == "") {
1997                                 alert(__("Can't create label: missing caption."));
1998                                 return false;
1999                         }
2000
2001                         var query = "?op=pref-labels&subop=add&caption=" +
2002                                 param_escape(caption);
2003
2004                         if (select)
2005                                 query += "&output=select";
2006
2007                         notify_progress("Loading, please wait...", true);
2008
2009                         if (inPreferences() && !select) active_tab = "labelConfig";
2010
2011                         new Ajax.Request("backend.php", {
2012                                 parameters: query,
2013                                 onComplete: function(transport) {
2014                                         if (callback) {
2015                                                 callback(transport);
2016                                         } else if (inPreferences()) {
2017                                                 infobox_submit_callback2(transport);
2018                                         } else {
2019                                                 updateFeedList();
2020                                         }
2021                         } });
2022
2023                 }
2024
2025         } catch (e) {
2026                 exception_error("addLabel", e);
2027         }
2028 }
2029
2030 function quickAddFeed() {
2031         displayDlg('quickAddFeed', '',
2032            function () {$('feed_url').focus();});
2033 }
2034
2035 function quickAddFilter() {
2036         displayDlg('quickAddFilter', '',
2037            function () {document.forms['filter_add_form'].reg_exp.focus();});
2038 }
2039
2040 function unsubscribeFeed(feed_id, title) {
2041
2042         var msg = __("Unsubscribe from %s?").replace("%s", title);
2043
2044         if (title == undefined || confirm(msg)) {
2045                 notify_progress("Removing feed...");
2046
2047                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
2048
2049                 new Ajax.Request("backend.php", {
2050                         parameters: query,
2051                         onComplete: function(transport) {
2052
2053                                         closeInfoBox();
2054
2055                                         if (inPreferences()) {
2056                                                 updateFeedList();
2057                                         } else {
2058                                                 dlg_frefresh_callback(transport, feed_id);
2059                                         }
2060
2061                                 } });
2062         }
2063
2064         return false;
2065 }
2066
2067
2068 function backend_sanity_check_callback(transport) {
2069
2070         try {
2071
2072                 if (sanity_check_done) {
2073                         fatalError(11, "Sanity check request received twice. This can indicate "+
2074                       "presence of Firebug or some other disrupting extension. "+
2075                                 "Please disable it and try again.");
2076                         return;
2077                 }
2078
2079                 if (!transport.responseXML) {
2080                         if (!store) {
2081                                 fatalError(3, "Sanity check: Received reply is not XML",
2082                                         transport.responseText);
2083                                 return;
2084                         } else {
2085                                 init_offline();
2086                                 return;
2087                         }
2088                 }
2089
2090                 if (getURLParam("offline")) {
2091                         return init_offline();
2092                 }
2093
2094                 var reply = transport.responseXML.getElementsByTagName("error")[0];
2095
2096                 if (!reply) {
2097                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
2098                         return;
2099                 }
2100
2101                 var error_code = reply.getAttribute("error-code");
2102
2103                 if (error_code && error_code != 0) {
2104                         return fatalError(error_code, reply.getAttribute("error-msg"));
2105                 }
2106
2107                 console.log("sanity check ok");
2108
2109                 var params = transport.responseXML.getElementsByTagName("init-params")[0];
2110
2111                 if (params) {
2112                         console.log('reading init-params...');
2113
2114                         params = JSON.parse(params.firstChild.nodeValue);
2115
2116                         if (params) {
2117                                 for (var i = 0; i < params.length; i++) {
2118
2119                                         var k = params[i].param;
2120                                         var v = params[i].value;
2121
2122                                         if (getURLParam('debug')) console.log(k + " => " + v);
2123                                         init_params[k] = v;
2124
2125                                         if (db) {
2126                                                 db.execute("DELETE FROM init_params WHERE key = ?", [k]);
2127                                                 db.execute("INSERT INTO init_params (key,value) VALUES (?, ?)",
2128                                                         [k, v]);
2129                                         }
2130                                 }
2131                         }
2132                 }
2133
2134                 sanity_check_done = true;
2135
2136                 init_second_stage();
2137
2138         } catch (e) {
2139                 exception_error("backend_sanity_check_callback", e, transport);
2140         }
2141 }
2142
2143 function has_local_storage() {
2144         try {
2145                 return 'localStorage' in window && window['localStorage'] != null;
2146         } catch (e) {
2147                 return false;
2148         }
2149 }
2150
2151 function catSelectOnChange(elem) {
2152         try {
2153                 var value = elem[elem.selectedIndex].value;
2154                 var def = elem.getAttribute('default');
2155
2156                 if (value == "ADD_CAT") {
2157
2158                         if (def)
2159                                 dropboxSelect(elem, def);
2160                         else
2161                                 elem.selectedIndex = 0;
2162
2163                         quickAddCat(elem);
2164                 }
2165
2166         } catch (e) {
2167                 exception_error("catSelectOnChange", e);
2168         }
2169 }
2170
2171 function quickAddCat(elem) {
2172         try {
2173                 var cat = prompt(__("Please enter category title:"));
2174
2175                 if (cat) {
2176
2177                         var query = "?op=rpc&subop=quickAddCat&cat=" + param_escape(cat);
2178
2179                         notify_progress("Loading, please wait...", true);
2180
2181                         new Ajax.Request("backend.php", {
2182                                 parameters: query,
2183                                 onComplete: function (transport) {
2184                                         var response = transport.responseXML;
2185                                         var select = response.getElementsByTagName("select")[0];
2186                                         var options = select.getElementsByTagName("option");
2187
2188                                         dropbox_replace_options(elem, options);
2189
2190                                         notify('');
2191
2192                         } });
2193
2194                 }
2195
2196         } catch (e) {
2197                 exception_error("quickAddCat", e);
2198         }
2199 }
2200
2201 function genUrlChangeKey(feed, is_cat) {
2202
2203         try {
2204                 var ok = confirm(__("Generate new syndication address for this feed?"));
2205
2206                 if (ok) {
2207
2208                         notify_progress("Trying to change address...", true);
2209
2210                         var query = "?op=rpc&subop=regenFeedKey&id=" + param_escape(feed) +
2211                                 "&is_cat=" + param_escape(is_cat);
2212
2213                         new Ajax.Request("backend.php", {
2214                                 parameters: query,
2215                                 onComplete: function(transport) {
2216                                                 var new_link = transport.responseXML.getElementsByTagName("link")[0];
2217
2218                                                 var e = $('gen_feed_url');
2219
2220                                                 if (new_link) {
2221
2222                                                         new_link = new_link.firstChild.nodeValue;
2223
2224                                                         e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
2225                                                                 "&amp;key=" + new_link);
2226
2227                                                         e.href = e.href.replace(/\&amp;key=.*$/,
2228                                                                 "&amp;key=" + new_link);
2229
2230                                                         new Effect.Highlight(e);
2231
2232                                                         notify('');
2233
2234                                                 } else {
2235                                                         notify_error("Could not change feed URL.");
2236                                                 }
2237                                 } });
2238                 }
2239         } catch (e) {
2240                 exception_error("genUrlChangeKey", e);
2241         }
2242         return false;
2243 }
2244
2245 function labelSelectOnChange(elem) {
2246         try {
2247                 var value = elem[elem.selectedIndex].value;
2248                 var def = elem.getAttribute('default');
2249
2250                 if (value == "ADD_LABEL") {
2251
2252                         if (def)
2253                                 dropboxSelect(elem, def);
2254                         else
2255                                 elem.selectedIndex = 0;
2256
2257                         addLabel(elem, function(transport) {
2258
2259                                         try {
2260
2261                                                 var response = transport.responseXML;
2262                                                 var select = response.getElementsByTagName("select")[0];
2263                                                 var options = select.getElementsByTagName("option");
2264
2265                                                 dropbox_replace_options(elem, options);
2266
2267                                                 notify('');
2268                                         } catch (e) {
2269                                                 exception_error("addLabel", e);
2270                                         }
2271                         });
2272                 }
2273
2274         } catch (e) {
2275                 exception_error("labelSelectOnChange", e);
2276         }
2277 }
2278
2279 function dropbox_replace_options(elem, options) {
2280
2281         try {
2282                 while (elem.hasChildNodes())
2283                         elem.removeChild(elem.firstChild);
2284
2285                 var sel_idx = -1;
2286
2287                 for (var i = 0; i < options.length; i++) {
2288                         var text = options[i].firstChild.nodeValue;
2289                         var value = options[i].getAttribute("value");
2290
2291                         if (value == undefined) value = text;
2292
2293                         var issel = options[i].getAttribute("selected") == "1";
2294
2295                         var option = new Option(text, value, issel);
2296
2297                         if (options[i].getAttribute("disabled"))
2298                                 option.setAttribute("disabled", true);
2299
2300                         elem.insert(option);
2301
2302                         if (issel) sel_idx = i;
2303                 }
2304
2305                 // Chrome doesn't seem to just select stuff when you pass new Option(x, y, true)
2306                 if (sel_idx >= 0) elem.selectedIndex = sel_idx;
2307
2308         } catch (e) {
2309                 exception_error("dropbox_replace_options", e);
2310         }
2311 }