functions.js

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