functions.js

   1 var hotkeys_enabled = true;
   2 var debug_mode_enabled = false;
   3 var xmlhttp_rpc = Ajax.getTransport();
   4 var notify_silent = false;
   5 var last_progress_point = 0;
   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 function browser_has_opacity() {
  16         return navigator.userAgent.match("Gecko") != null ||
  17                 navigator.userAgent.match("Opera") != null;
  18 }
  19
  20 function is_msie() {
  21         return navigator.userAgent.match("MSIE");
  22 }
  23
  24 function is_opera() {
  25         return navigator.userAgent.match("Opera");
  26 }
  27
  28 function is_khtml() {
  29         return navigator.userAgent.match("KHTML");
  30 }
  31
  32 function is_safari() {
  33         return navigator.userAgent.match("Safari");
  34 }
  35
  36 function exception_error(location, e, silent) {
  37         var msg;
  38
  39         if (e.fileName) {
  40                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  41
  42                 msg = "Exception: " + e.name + ", " + e.message +
  43                         "\nFunction: " + location + "()" +
  44                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  45
  46         } else {
  47                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  48         }
  49
  50         debug("<b>EXCEPTION: " + msg + "</b>");
  51
  52         if (!silent) {
  53                 alert(msg);
  54         }
  55 }
  56
  57 function disableHotkeys() {
  58         hotkeys_enabled = false;
  59 }
  60
  61 function enableHotkeys() {
  62         hotkeys_enabled = true;
  63 }
  64
  65 function xmlhttp_ready(obj) {
  66         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  67 }
  68
  69 function open_article_callback(transport) {
  70         try {
  71
  72                 if (transport.responseXML) {
  73
  74                         var link = transport.responseXML.getElementsByTagName("link")[0];
  75                         var id = transport.responseXML.getElementsByTagName("id")[0];
  76
  77                         debug("open_article_callback, received link: " + link);
  78
  79                         if (link && id) {
  80
  81                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
  82
  83                                 debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
  84
  85                                 var w = window.open(link.firstChild.nodeValue, wname);
  86
  87                                 if (!w) { notify_error("Failed to load article in new window"); }
  88
  89                                 if (id) {
  90                                         id = id.firstChild.nodeValue;
  91                                         if (!document.getElementById("headlinesList")) {
  92                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  93                                         }
  94                                 }
  95                         } else {
  96                                 notify_error("Can't open article: received invalid article link");
  97                         }
  98                 } else {
  99                         notify_error("Can't open article: received invalid XML");
 100                 }
 101
 102         } catch (e) {
 103                 exception_error("open_article_callback", e);
 104         }
 105 }
 106
 107 function param_escape(arg) {
 108         if (typeof encodeURIComponent != 'undefined')
 109                 return encodeURIComponent(arg);
 110         else
 111                 return escape(arg);
 112 }
 113
 114 function param_unescape(arg) {
 115         if (typeof decodeURIComponent != 'undefined')
 116                 return decodeURIComponent(arg);
 117         else
 118                 return unescape(arg);
 119 }
 120
 121 function delay(gap) {
 122         var then,now;
 123         then=new Date().getTime();
 124         now=then;
 125         while((now-then)<gap) {
 126                 now=new Date().getTime();
 127         }
 128 }
 129
 130 var notify_hide_timerid = false;
 131
 132 function hide_notify() {
 133         var n = document.getElementById("notify");
 134         if (n) {
 135                 n.style.display = "none";
 136         }
 137 }
 138
 139 function notify_silent_next() {
 140         notify_silent = true;
 141 }
 142
 143 function notify_real(msg, no_hide, n_type) {
 144
 145         if (notify_silent) {
 146                 notify_silent = false;
 147                 return;
 148         }
 149
 150         var n = document.getElementById("notify");
 151         var nb = document.getElementById("notify_body");
 152
 153         if (!n || !nb) return;
 154
 155         if (notify_hide_timerid) {
 156                 window.clearTimeout(notify_hide_timerid);
 157         }
 158
 159         if (msg == "") {
 160                 if (n.style.display == "block") {
 161                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 162                 }
 163                 return;
 164         } else {
 165                 n.style.display = "block";
 166         }
 167
 168         /* types:
 169
 170                 1 - generic
 171                 2 - progress
 172                 3 - error
 173                 4 - info
 174
 175         */
 176
 177         if (typeof __ != 'undefined') {
 178                 msg = __(msg);
 179         }
 180
 181         if (n_type == 1) {
 182                 n.className = "notify";
 183         } else if (n_type == 2) {
 184                 n.className = "notifyProgress";
 185                 msg = "<img src='images/indicator_white.gif'> " + msg;
 186         } else if (n_type == 3) {
 187                 n.className = "notifyError";
 188                 msg = "<img src='images/sign_excl.gif'> " + msg;
 189         } else if (n_type == 4) {
 190                 n.className = "notifyInfo";
 191                 msg = "<img src='images/sign_info.gif'> " + msg;
 192         }
 193
 194 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 195
 196         nb.innerHTML = msg;
 197
 198         if (!no_hide) {
 199                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 200         }
 201 }
 202
 203 function notify(msg, no_hide) {
 204         notify_real(msg, no_hide, 1);
 205 }
 206
 207 function notify_progress(msg, no_hide) {
 208         notify_real(msg, no_hide, 2);
 209 }
 210
 211 function notify_error(msg, no_hide) {
 212         notify_real(msg, no_hide, 3);
 213
 214 }
 215
 216 function notify_info(msg, no_hide) {
 217         notify_real(msg, no_hide, 4);
 218 }
 219
 220 function printLockingError() {
 221         notify_info("Please wait until operation finishes.");
 222 }
 223
 224 function cleanSelectedList(element) {
 225         var content = document.getElementById(element);
 226
 227         if (!document.getElementById("feedCatHolder")) {
 228                 for (i = 0; i < content.childNodes.length; i++) {
 229                         var child = content.childNodes[i];
 230                         try {
 231                                 child.className = child.className.replace("Selected", "");
 232                         } catch (e) {
 233                                 //
 234                         }
 235                 }
 236         } else {
 237                 for (i = 0; i < content.childNodes.length; i++) {
 238                         var child = content.childNodes[i];
 239                         if (child.id == "feedCatHolder") {
 240                                 debug(child.id);
 241                                 var fcat = child.lastChild;
 242                                 for (j = 0; j < fcat.childNodes.length; j++) {
 243                                         var feed = fcat.childNodes[j];
 244                                         feed.className = feed.className.replace("Selected", "");
 245                                 }
 246                         }
 247                 }
 248         }
 249 }
 250
 251
 252 function cleanSelected(element) {
 253         var content = document.getElementById(element);
 254
 255         for (i = 0; i < content.rows.length; i++) {
 256                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 257         }
 258 }
 259
 260 function getVisibleUnreadHeadlines() {
 261         var content = document.getElementById("headlinesList");
 262
 263         var rows = new Array();
 264
 265         for (i = 0; i < content.rows.length; i++) {
 266                 var row_id = content.rows[i].id.replace("RROW-", "");
 267                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 268                                 rows.push(row_id);
 269                 }
 270         }
 271         return rows;
 272 }
 273
 274 function getVisibleHeadlineIds() {
 275
 276         var content = document.getElementById("headlinesList");
 277
 278         var rows = new Array();
 279
 280         for (i = 0; i < content.rows.length; i++) {
 281                 var row_id = content.rows[i].id.replace("RROW-", "");
 282                 if (row_id.length > 0) {
 283                                 rows.push(row_id);
 284                 }
 285         }
 286         return rows;
 287 }
 288
 289 function getFirstVisibleHeadlineId() {
 290         if (isCdmMode()) {
 291                 var rows = cdmGetVisibleArticles();
 292                 return rows[0];
 293         } else {
 294                 var rows = getVisibleHeadlineIds();
 295                 return rows[0];
 296         }
 297 }
 298
 299 function getLastVisibleHeadlineId() {
 300         if (isCdmMode()) {
 301                 var rows = cdmGetVisibleArticles();
 302                 return rows[rows.length-1];
 303         } else {
 304                 var rows = getVisibleHeadlineIds();
 305                 return rows[rows.length-1];
 306         }
 307 }
 308
 309 function markHeadline(id) {
 310         var row = document.getElementById("RROW-" + id);
 311         if (row) {
 312                 var is_active = false;
 313
 314                 if (row.className.match("Active")) {
 315                         is_active = true;
 316                 }
 317                 row.className = row.className.replace("Selected", "");
 318                 row.className = row.className.replace("Active", "");
 319                 row.className = row.className.replace("Insensitive", "");
 320
 321                 if (is_active) {
 322                         row.className = row.className = "Active";
 323                 }
 324
 325                 var check = document.getElementById("RCHK-" + id);
 326
 327                 if (check) {
 328                         check.checked = true;
 329                 }
 330
 331                 row.className = row.className + "Selected";
 332
 333         }
 334 }
 335
 336 function getFeedIds() {
 337         var content = document.getElementById("feedsList");
 338
 339         var rows = new Array();
 340
 341         for (i = 0; i < content.rows.length; i++) {
 342                 var id = content.rows[i].id.replace("FEEDR-", "");
 343                 if (id.length > 0) {
 344                         rows.push(id);
 345                 }
 346         }
 347
 348         return rows;
 349 }
 350
 351 function setCookie(name, value, lifetime, path, domain, secure) {
 352
 353         var d = false;
 354
 355         if (lifetime) {
 356                 d = new Date();
 357                 d.setTime(d.getTime() + (lifetime * 1000));
 358         }
 359
 360         debug("setCookie: " + name + " => " + value + ": " + d);
 361
 362         int_setCookie(name, value, d, path, domain, secure);
 363
 364 }
 365
 366 function int_setCookie(name, value, expires, path, domain, secure) {
 367         document.cookie= name + "=" + escape(value) +
 368                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 369                 ((path) ? "; path=" + path : "") +
 370                 ((domain) ? "; domain=" + domain : "") +
 371                 ((secure) ? "; secure" : "");
 372 }
 373
 374 function delCookie(name, path, domain) {
 375         if (getCookie(name)) {
 376                 document.cookie = name + "=" +
 377                 ((path) ? ";path=" + path : "") +
 378                 ((domain) ? ";domain=" + domain : "" ) +
 379                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 380         }
 381 }
 382
 383
 384 function getCookie(name) {
 385
 386         var dc = document.cookie;
 387         var prefix = name + "=";
 388         var begin = dc.indexOf("; " + prefix);
 389         if (begin == -1) {
 390             begin = dc.indexOf(prefix);
 391             if (begin != 0) return null;
 392         }
 393         else {
 394             begin += 2;
 395         }
 396         var end = document.cookie.indexOf(";", begin);
 397         if (end == -1) {
 398             end = dc.length;
 399         }
 400         return unescape(dc.substring(begin + prefix.length, end));
 401 }
 402
 403 function disableContainerChildren(id, disable, doc) {
 404
 405         if (!doc) doc = document;
 406
 407         var container = doc.getElementById(id);
 408
 409         if (!container) {
 410                 //alert("disableContainerChildren: element " + id + " not found");
 411                 return;
 412         }
 413
 414         for (var i = 0; i < container.childNodes.length; i++) {
 415                 var child = container.childNodes[i];
 416
 417                 try {
 418                         child.disabled = disable;
 419                 } catch (E) {
 420
 421                 }
 422
 423                 if (disable) {
 424                         if (child.className && child.className.match("button")) {
 425                                 child.className = "disabledButton";
 426                         }
 427                 } else {
 428                         if (child.className && child.className.match("disabledButton")) {
 429                                 child.className = "button";
 430                         }
 431                 }
 432         }
 433
 434 }
 435
 436 function gotoPreferences() {
 437         document.location.href = "prefs.php";
 438 }
 439
 440 function gotoMain() {
 441         document.location.href = "tt-rss.php";
 442 }
 443
 444 function gotoExportOpml() {
 445         document.location.href = "opml.php?op=Export";
 446 }
 447
 448 function getActiveFeedId() {
 449 //      return getCookie("ttrss_vf_actfeed");
 450         try {
 451                 debug("gAFID: " + active_feed_id);
 452                 return active_feed_id;
 453         } catch (e) {
 454                 exception_error("getActiveFeedId", e);
 455         }
 456 }
 457
 458 function activeFeedIsCat() {
 459         return active_feed_is_cat;
 460 }
 461
 462 function setActiveFeedId(id) {
 463 //      return setCookie("ttrss_vf_actfeed", id);
 464         try {
 465                 debug("sAFID(" + id + ")");
 466                 active_feed_id = id;
 467         } catch (e) {
 468                 exception_error("setActiveFeedId", e);
 469         }
 470 }
 471
 472 function parse_counters(reply, scheduled_call) {
 473         try {
 474
 475                 var feeds_found = 0;
 476
 477                 var elems = reply.getElementsByTagName("counter");
 478
 479                 for (var l = 0; l < elems.length; l++) {
 480
 481                         var id = elems[l].getAttribute("id");
 482                         var t = elems[l].getAttribute("type");
 483                         var ctr = elems[l].getAttribute("counter");
 484                         var error = elems[l].getAttribute("error");
 485                         var has_img = elems[l].getAttribute("hi");
 486                         var updated = elems[l].getAttribute("updated");
 487                         var title = elems[l].getAttribute("title");
 488
 489                         if (id == "global-unread") {
 490                                 global_unread = ctr;
 491                                 updateTitle();
 492                                 continue;
 493                         }
 494
 495                         if (id == "subscribed-feeds") {
 496                                 feeds_found = ctr;
 497                                 continue;
 498                         }
 499
 500                         if (t == "category") {
 501                                 var catctr = document.getElementById("FCATCTR-" + id);
 502                                 if (catctr) {
 503                                         catctr.innerHTML = "(" + ctr + ")";
 504                                         if (ctr > 0) {
 505                                                 catctr.className = "catCtrHasUnread";
 506                                         } else {
 507                                                 catctr.className = "catCtrNoUnread";
 508                                         }
 509                                 }
 510                                 continue;
 511                         }
 512
 513                         var feedctr = document.getElementById("FEEDCTR-" + id);
 514                         var feedu = document.getElementById("FEEDU-" + id);
 515                         var feedr = document.getElementById("FEEDR-" + id);
 516                         var feed_img = document.getElementById("FIMG-" + id);
 517                         var feedlink = document.getElementById("FEEDL-" + id);
 518                         var feedupd = document.getElementById("FLUPD-" + id);
 519
 520                         if (updated && feedlink) {
 521                                 if (error) {
 522                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 523                                 } else {
 524                                         feedlink.title = "Updated: " + updated;
 525                                 }
 526                         }
 527
 528                         if (updated && feedupd) {
 529                                 if (error) {
 530                                         feedupd.innerHTML = updated + " (Error)";
 531                                 } else {
 532                                         feedupd.innerHTML = updated;
 533                                 }
 534                         }
 535
 536                         if (has_img && feed_img && !is_msie()) {
 537                                 if (!feed_img.src.match(id + ".ico")) {
 538                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 539                                 }
 540                         }
 541
 542                         if (feedlink && title) {
 543                                 feedlink.innerHTML = title;
 544                         }
 545
 546                         if (feedctr && feedu && feedr) {
 547
 548                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 549                                         viewCurrentFeed();
 550                                 }
 551
 552                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 553
 554                                 feedu.innerHTML = ctr;
 555
 556                                 if (error) {
 557                                         feedr.className = feedr.className.replace("feed", "error");
 558                                 } else if (id > 0) {
 559                                         feedr.className = feedr.className.replace("error", "feed");
 560                                 }
 561
 562                                 if (ctr > 0) {
 563                                         feedctr.className = "odd";
 564                                         if (!feedr.className.match("Unread")) {
 565                                                 var is_selected = feedr.className.match("Selected");
 566
 567                                                 feedr.className = feedr.className.replace("Selected", "");
 568                                                 feedr.className = feedr.className.replace("Unread", "");
 569
 570                                                 feedr.className = feedr.className + "Unread";
 571
 572                                                 if (is_selected) {
 573                                                         feedr.className = feedr.className + "Selected";
 574                                                 }
 575
 576                                         }
 577
 578                                         if (row_needs_hl) {
 579                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 580                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 581                                         }
 582                                 } else {
 583                                         feedctr.className = "invisible";
 584                                         feedr.className = feedr.className.replace("Unread", "");
 585                                 }
 586                         }
 587                 }
 588
 589                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 590
 591                 var feeds_stored = number_of_feeds;
 592
 593                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 594
 595                 if (feeds_stored != feeds_found) {
 596                         number_of_feeds = feeds_found;
 597
 598                         if (feeds_stored != 0 && feeds_found != 0) {
 599                                 debug("Subscribed feed number changed, refreshing feedlist");
 600                                 setTimeout('updateFeedList(false, false)', 50);
 601                         }
 602                 }
 603
 604         } catch (e) {
 605                 exception_error("parse_counters", e);
 606         }
 607 }
 608
 609 function parse_counters_reply(transport, scheduled_call) {
 610
 611         if (!transport.responseXML) {
 612                 notify_error("Backend did not return valid XML", true);
 613                 return;
 614         }
 615
 616         var reply = transport.responseXML.firstChild;
 617
 618         if (!reply) {
 619                 notify_error("Backend did not return expected XML object", true);
 620                 updateTitle("");
 621                 return;
 622         }
 623
 624         var error_code = false;
 625         var error_msg = false;
 626
 627         if (reply.firstChild) {
 628                 error_code = reply.firstChild.getAttribute("error-code");
 629                 error_msg = reply.firstChild.getAttribute("error-msg");
 630         }
 631
 632         if (!error_code) {
 633                 error_code = reply.getAttribute("error-code");
 634                 error_msg = reply.getAttribute("error-msg");
 635         }
 636
 637         if (error_code && error_code != 0) {
 638                 debug("refetch_callback: got error code " + error_code);
 639                 return fatalError(error_code, error_msg);
 640         }
 641
 642         var counters = reply.getElementsByTagName("counters")[0];
 643
 644         parse_counters(counters, scheduled_call);
 645
 646         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 647
 648         parse_runtime_info(runtime_info);
 649
 650         if (getInitParam("feeds_sort_by_unread") == 1) {
 651                         resort_feedlist();
 652         }
 653
 654         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 655
 656 }
 657
 658 function all_counters_callback2(transport) {
 659         try {
 660                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 661                 parse_counters_reply(transport);
 662                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 663
 664         } catch (e) {
 665                 exception_error("all_counters_callback2", e);
 666         }
 667 }
 668
 669 function get_feed_unread(id) {
 670         try {
 671                 return parseInt(document.getElementById("FEEDU-" + id).innerHTML);
 672         } catch (e) {
 673                 exception_error("get_feed_unread", e, true);
 674                 return -1;
 675         }
 676 }
 677
 678 function get_feed_entry_unread(doc, elem) {
 679
 680         var id = elem.id.replace("FEEDR-", "");
 681
 682         if (id <= 0) {
 683                 return -1;
 684         }
 685
 686         try {
 687                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 688         } catch (e) {
 689                 return -1;
 690         }
 691 }
 692
 693 function resort_category(doc, node) {
 694         debug("resort_category: " + node);
 695
 696         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 697                 for (i = 0; i < node.childNodes.length; i++) {
 698                         if (node.childNodes[i].nodeName != "LI") { continue; }
 699
 700                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 701                                 continue;
 702                         }
 703
 704                         for (j = i+1; j < node.childNodes.length; j++) {
 705                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 706
 707                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 708                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 709
 710                                 if (cur_val > tmp_val) {
 711                                         tempnode_i = node.childNodes[i].cloneNode(true);
 712                                         tempnode_j = node.childNodes[j].cloneNode(true);
 713                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 714                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 715                                 }
 716                         }
 717
 718                 }
 719         }
 720
 721 }
 722
 723 function resort_feedlist() {
 724         debug("resort_feedlist");
 725
 726         var fd = document;
 727
 728         if (fd.getElementById("feedCatHolder")) {
 729
 730                 var feeds = fd.getElementById("feedList");
 731                 var child = feeds.firstChild;
 732
 733                 while (child) {
 734
 735                         if (child.id == "feedCatHolder") {
 736                                 resort_category(fd, child.firstChild);
 737                         }
 738
 739                         child = child.nextSibling;
 740                 }
 741
 742         } else {
 743                 resort_category(fd, fd.getElementById("feedList"));
 744         }
 745 }
 746
 747 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 748   * * @author Sundar Dorai-Raj
 749   * * Email: sdoraira@vt.edu
 750   * * This program is free software; you can redistribute it and/or
 751   * * modify it under the terms of the GNU General Public License
 752   * * as published by the Free Software Foundation; either version 2
 753   * * of the License, or (at your option) any later version,
 754   * * provided that any use properly credits the author.
 755   * * This program is distributed in the hope that it will be useful,
 756   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 757   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 758   * * GNU General Public License for more details at http://www.gnu.org * * */
 759
 760   var numbers=".0123456789";
 761   function isNumeric(x) {
 762     // is x a String or a character?
 763     if(x.length>1) {
 764       // remove negative sign
 765       x=Math.abs(x)+"";
 766       for(j=0;j<x.length;j++) {
 767         // call isNumeric recursively for each character
 768         number=isNumeric(x.substring(j,j+1));
 769         if(!number) return number;
 770       }
 771       return number;
 772     }
 773     else {
 774       // if x is number return true
 775       if(numbers.indexOf(x)>=0) return true;
 776       return false;
 777     }
 778   }
 779
 780
 781 function hideOrShowFeeds(doc, hide) {
 782
 783         debug("hideOrShowFeeds: " + doc + ", " + hide);
 784
 785         var fd = document;
 786
 787         var list = fd.getElementById("feedList");
 788
 789         if (fd.getElementById("feedCatHolder")) {
 790
 791                 var feeds = fd.getElementById("feedList");
 792                 var child = feeds.firstChild;
 793
 794                 while (child) {
 795
 796                         if (child.id == "feedCatHolder") {
 797                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 798                         }
 799
 800                         child = child.nextSibling;
 801                 }
 802
 803         } else {
 804                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 805         }
 806 }
 807
 808 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 809
 810 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 811
 812         var cat_unread = 0;
 813
 814         if (!node) {
 815                 debug("hideOrShowFeeds: passed node is null, aborting");
 816                 return;
 817         }
 818
 819 //      debug("cat: " + node.id);
 820
 821         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 822                 for (i = 0; i < node.childNodes.length; i++) {
 823                         if (node.childNodes[i].nodeName != "LI") { continue; }
 824
 825                         if (node.childNodes[i].style != undefined) {
 826
 827                                 var has_unread = (node.childNodes[i].className != "feed" &&
 828                                         node.childNodes[i].className != "label" &&
 829                                         !(!getInitParam("hide_read_shows_special") &&
 830                                                 node.childNodes[i].className == "virt") &&
 831                                         node.childNodes[i].className != "error" &&
 832                                         node.childNodes[i].className != "tag");
 833
 834 //                              debug(node.childNodes[i].id + " --> " + has_unread);
 835
 836                                 if (hide && !has_unread) {
 837                                         //node.childNodes[i].style.display = "none";
 838                                         var id = node.childNodes[i].id;
 839                                         Effect.Fade(node.childNodes[i], {duration : 0.3,
 840                                                 queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 841                                 }
 842
 843                                 if (!hide) {
 844                                         node.childNodes[i].style.display = "list-item";
 845                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 846                                 }
 847
 848                                 if (has_unread) {
 849                                         node.childNodes[i].style.display = "list-item";
 850                                         cat_unread++;
 851                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 852                                         //Effect.Highlight(node.childNodes[i]);
 853                                 }
 854                         }
 855                 }
 856         }
 857
 858 //      debug("end cat: " + node.id + " unread " + cat_unread);
 859
 860         if (cat_unread == 0) {
 861                 if (cat_node.style == undefined) {
 862                         debug("ERROR: supplied cat_node " + cat_node +
 863                                 " has no styles. WTF?");
 864                         return;
 865                 }
 866                 if (hide) {
 867                         //cat_node.style.display = "none";
 868                         Effect.Fade(cat_node, {duration : 0.3,
 869                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 870                 } else {
 871                         cat_node.style.display = "list-item";
 872                 }
 873         } else {
 874                 try {
 875                         cat_node.style.display = "list-item";
 876                 } catch (e) {
 877                         debug(e);
 878                 }
 879         }
 880
 881 //      debug("unread for category: " + cat_unread);
 882 }
 883
 884 function selectTableRow(r, do_select) {
 885         r.className = r.className.replace("Selected", "");
 886
 887         if (do_select) {
 888                 r.className = r.className + "Selected";
 889         }
 890 }
 891
 892 function selectTableRowById(elem_id, check_id, do_select) {
 893
 894         try {
 895
 896                 var row = document.getElementById(elem_id);
 897
 898                 if (row) {
 899                         selectTableRow(row, do_select);
 900                 }
 901
 902                 var check = document.getElementById(check_id);
 903
 904                 if (check) {
 905                         check.checked = do_select;
 906                 }
 907         } catch (e) {
 908                 exception_error("selectTableRowById", e);
 909         }
 910 }
 911
 912 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 913         classcheck, reset_others) {
 914
 915         var content = document.getElementById(content_id);
 916
 917         if (!content) {
 918                 alert("[selectTableRows] Element " + content_id + " not found.");
 919                 return;
 920         }
 921
 922         for (i = 0; i < content.rows.length; i++) {
 923                 if (Element.visible(content.rows[i])) {
 924                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 925
 926                                 if (content.rows[i].id.match(prefix)) {
 927                                         selectTableRow(content.rows[i], do_select);
 928
 929                                         var row_id = content.rows[i].id.replace(prefix, "");
 930                                         var check = document.getElementById(check_prefix + row_id);
 931
 932                                         if (check) {
 933                                                 check.checked = do_select;
 934                                         }
 935                                 } else if (reset_others) {
 936                                         selectTableRow(content.rows[i], false);
 937
 938                                         var row_id = content.rows[i].id.replace(prefix, "");
 939                                         var check = document.getElementById(check_prefix + row_id);
 940
 941                                         if (check) {
 942                                                 check.checked = false;
 943                                         }
 944
 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                 }
 958         }
 959 }
 960
 961 function getSelectedTableRowIds(content_id, prefix) {
 962
 963         var content = document.getElementById(content_id);
 964
 965         if (!content) {
 966                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 967                 return;
 968         }
 969
 970         var sel_rows = new Array();
 971
 972         for (i = 0; i < content.rows.length; i++) {
 973                 if (content.rows[i].id.match(prefix) &&
 974                                 content.rows[i].className.match("Selected")) {
 975
 976                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 977                         sel_rows.push(row_id);
 978                 }
 979         }
 980
 981         return sel_rows;
 982
 983 }
 984
 985 function toggleSelectRowById(sender, id) {
 986         var row = document.getElementById(id);
 987
 988         if (sender.checked) {
 989                 if (!row.className.match("Selected")) {
 990                         row.className = row.className + "Selected";
 991                 }
 992         } else {
 993                 if (row.className.match("Selected")) {
 994                         row.className = row.className.replace("Selected", "");
 995                 }
 996         }
 997 }
 998
 999 function toggleSelectListRow(sender) {
1000         var parent_row = sender.parentNode;
1001
1002         if (sender.checked) {
1003                 if (!parent_row.className.match("Selected")) {
1004                         parent_row.className = parent_row.className + "Selected";
1005                 }
1006         } else {
1007                 if (parent_row.className.match("Selected")) {
1008                         parent_row.className = parent_row.className.replace("Selected", "");
1009                 }
1010         }
1011 }
1012
1013 function tSR(sender) {
1014         return toggleSelectRow(sender);
1015 }
1016
1017 function toggleSelectRow(sender) {
1018         var parent_row = sender.parentNode.parentNode;
1019
1020         if (sender.checked) {
1021                 if (!parent_row.className.match("Selected")) {
1022                         parent_row.className = parent_row.className + "Selected";
1023                 }
1024         } else {
1025                 if (parent_row.className.match("Selected")) {
1026                         parent_row.className = parent_row.className.replace("Selected", "");
1027                 }
1028         }
1029 }
1030
1031 function getRelativeFeedId(list, id, direction, unread_only) {
1032         var rows = list.getElementsByTagName("LI");
1033         var feeds = new Array();
1034
1035         for (var i = 0; i < rows.length; i++) {
1036                 if (rows[i].id.match("FEEDR-")) {
1037
1038                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1039
1040                                 if (!unread_only ||
1041                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1042                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1043                                 }
1044                         }
1045                 }
1046         }
1047
1048         if (!id) {
1049                 if (direction == "next") {
1050                         return feeds.shift();
1051                 } else {
1052                         return feeds.pop();
1053                 }
1054         } else {
1055                 if (direction == "next") {
1056                         var idx = feeds.indexOf(id);
1057                         if (idx != -1 && idx < feeds.length) {
1058                                 return feeds[idx+1];
1059                         } else {
1060                                 return getRelativeFeedId(list, false, direction, unread_only);
1061                         }
1062                 } else {
1063                         var idx = feeds.indexOf(id);
1064                         if (idx > 0) {
1065                                 return feeds[idx-1];
1066                         } else {
1067                                 return getRelativeFeedId(list, false, direction, unread_only);
1068                         }
1069                 }
1070
1071         }
1072 }
1073
1074 function showBlockElement(id, h_id) {
1075         var elem = document.getElementById(id);
1076
1077         if (elem) {
1078                 elem.style.display = "block";
1079
1080                 if (h_id) {
1081                         elem = document.getElementById(h_id);
1082                         if (elem) {
1083                                 elem.style.display = "none";
1084                         }
1085                 }
1086         } else {
1087                 alert("[showBlockElement] can't find element with id " + id);
1088         }
1089 }
1090
1091 function appearBlockElement_afh(effect) {
1092
1093 }
1094
1095 function checkboxToggleElement(elem, id) {
1096         if (elem.checked) {
1097                 Effect.SlideDown(id, {duration : 0.5});
1098         } else {
1099                 Effect.SlideUp(id, {duration : 0.5});
1100         }
1101 }
1102
1103 function appearBlockElement(id, h_id) {
1104
1105         try {
1106                 if (h_id) {
1107                         Effect.Fade(h_id);
1108                 }
1109                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1110         } catch (e) {
1111                 exception_error("appearBlockElement", e);
1112         }
1113
1114 }
1115
1116 function hideParentElement(e) {
1117         e.parentNode.style.display = "none";
1118 }
1119
1120 function dropboxSelect(e, v) {
1121         for (i = 0; i < e.length; i++) {
1122                 if (e[i].value == v) {
1123                         e.selectedIndex = i;
1124                         break;
1125                 }
1126         }
1127 }
1128
1129 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1130 // bugfixed just a little bit :-)
1131 function getURLParam(strParamName){
1132   var strReturn = "";
1133   var strHref = window.location.href;
1134
1135   if (strHref.indexOf("#") == strHref.length-1) {
1136                 strHref = strHref.substring(0, strHref.length-1);
1137   }
1138
1139   if ( strHref.indexOf("?") > -1 ){
1140     var strQueryString = strHref.substr(strHref.indexOf("?"));
1141     var aQueryString = strQueryString.split("&");
1142     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1143       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1144         var aParam = aQueryString[iParam].split("=");
1145         strReturn = aParam[1];
1146         break;
1147       }
1148     }
1149   }
1150   return strReturn;
1151 }
1152
1153 function leading_zero(p) {
1154         var s = String(p);
1155         if (s.length == 1) s = "0" + s;
1156         return s;
1157 }
1158
1159 function closeInfoBox(cleanup) {
1160
1161         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1162                 var overlay = document.getElementById("dialog_overlay");
1163                 if (overlay) {
1164                         overlay.style.display = "none";
1165                 }
1166         }
1167
1168         var box = document.getElementById('infoBox');
1169         var shadow = document.getElementById('infoBoxShadow');
1170
1171         if (shadow) {
1172                 shadow.style.display = "none";
1173         } else if (box) {
1174                 box.style.display = "none";
1175         }
1176
1177         if (cleanup) box.innerHTML = "&nbsp;";
1178
1179         enableHotkeys();
1180
1181         return false;
1182 }
1183
1184
1185 function displayDlg(id, param) {
1186
1187         notify_progress("Loading, please wait...", true);
1188
1189         disableHotkeys();
1190
1191         var query = "backend.php?op=dlg&id=" +
1192                 param_escape(id) + "&param=" + param_escape(param);
1193
1194         new Ajax.Request(query, {
1195                 onComplete: function (transport) {
1196                         infobox_callback2(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                 debug("infobox_callback2");
1221
1222                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1223                         var overlay = document.getElementById("dialog_overlay");
1224                         if (overlay) {
1225                                 overlay.style.display = "block";
1226                         }
1227                 }
1228
1229                 var box = document.getElementById('infoBox');
1230                 var shadow = document.getElementById('infoBoxShadow');
1231                 if (box) {
1232
1233 /*                              if (!is_safari()) {
1234                                 new Draggable(shadow);
1235                         } */
1236
1237                         box.innerHTML=transport.responseText;
1238                         if (shadow) {
1239                                 shadow.style.display = "block";
1240                         } else {
1241                                 box.style.display = "block";
1242                         }
1243                 }
1244
1245                 /* FIXME this needs to be moved out somewhere */
1246
1247                 if (document.getElementById("tags_choices")) {
1248                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1249                                 "backend.php?op=rpc&subop=completeTags",
1250                                 { tokens: ',', paramName: "search" });
1251                 }
1252
1253                 disableHotkeys();
1254
1255                 notify("");
1256         } catch (e) {
1257                 exception_error("infobox_callback2", e);
1258         }
1259 }
1260
1261 function createFilter() {
1262
1263         try {
1264
1265                 var form = document.forms['filter_add_form'];
1266                 var reg_exp = form.reg_exp.value;
1267
1268                 if (reg_exp == "") {
1269                         alert(__("Can't add filter: nothing to match on."));
1270                         return false;
1271                 }
1272
1273                 var query = Form.serialize("filter_add_form");
1274
1275                 // we can be called from some other tab in Prefs
1276                 if (typeof active_tab != 'undefined' && active_tab) {
1277                         active_tab = "filterConfig";
1278                 }
1279
1280                 new Ajax.Request("backend.php?" + query, {
1281                         onComplete: function (transport) {
1282                                 infobox_submit_callback2(transport);
1283                         } });
1284
1285                 return true;
1286
1287         } catch (e) {
1288                 exception_error("createFilter", e);
1289         }
1290 }
1291
1292 function toggleSubmitNotEmpty(e, submit_id) {
1293         try {
1294                 document.getElementById(submit_id).disabled = (e.value == "")
1295         } catch (e) {
1296                 exception_error("toggleSubmitNotEmpty", e);
1297         }
1298 }
1299
1300 function isValidURL(s) {
1301         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1302 }
1303
1304 function subscribeToFeed() {
1305
1306         var form = document.forms['feed_add_form'];
1307         var feed_url = form.feed_url.value;
1308
1309         if (feed_url == "") {
1310                 alert(__("Can't subscribe: no feed URL given."));
1311                 return false;
1312         }
1313
1314         notify_progress(__("Subscribing to feed..."), true);
1315
1316         closeInfoBox();
1317
1318         var feeds_doc = document;
1319
1320 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1321
1322         var query = Form.serialize("feed_add_form");
1323
1324         debug("subscribe q: " + query);
1325
1326         new Ajax.Request("backend.php", {
1327                 parameters: query,
1328                 onComplete: function(transport) {
1329                         dlg_frefresh_callback(transport);
1330                 } });
1331
1332         return false;
1333 }
1334
1335 function filterCR(e, f)
1336 {
1337      var key;
1338
1339      if(window.event)
1340           key = window.event.keyCode;     //IE
1341      else
1342           key = e.which;     //firefox
1343
1344         if (key == 13) {
1345                 if (typeof f != 'undefined') {
1346                         f();
1347                         return false;
1348                 } else {
1349                         return false;
1350                 }
1351         } else {
1352                 return true;
1353         }
1354 }
1355
1356 function getMainContext() {
1357         return this.window;
1358 }
1359
1360 function getFeedsContext() {
1361         return this.window;
1362 }
1363
1364 function getContentContext() {
1365         return this.window;
1366 }
1367
1368 function getHeadlinesContext() {
1369         return this.window;
1370 }
1371
1372 var debug_last_class = "even";
1373
1374 function debug(msg) {
1375
1376         if (debug_last_class == "even") {
1377                 debug_last_class = "odd";
1378         } else {
1379                 debug_last_class = "even";
1380         }
1381
1382         var c = document.getElementById('debug_output');
1383         if (c && c.style.display == "block") {
1384                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1385                         c.removeChild(c.lastChild);
1386                 }
1387
1388                 var d = new Date();
1389                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1390                         ":" + leading_zero(d.getSeconds());
1391                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1392                         msg + "</li>" + c.innerHTML;
1393         }
1394 }
1395
1396 function getInitParam(key) {
1397         return init_params[key];
1398 }
1399
1400 function storeInitParam(key, value) {
1401         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1402         init_params[key] = value;
1403 }
1404
1405 function fatalError(code, message) {
1406         try {
1407
1408                 if (code == 6) {
1409                         window.location.href = "tt-rss.php";
1410                 } else if (code == 5) {
1411                         window.location.href = "update.php";
1412                 } else {
1413                         var fe = document.getElementById("fatal_error");
1414                         var fc = document.getElementById("fatal_error_msg");
1415
1416                         if (message == "") message = "Unknown error";
1417
1418                         fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
1419
1420                         fe.style.display = "block";
1421                 }
1422
1423         } catch (e) {
1424                 exception_error("fatalError", e);
1425         }
1426 }
1427
1428 function getFeedName(id, is_cat) {
1429         var d = getFeedsContext().document;
1430
1431         var e;
1432
1433         if (is_cat) {
1434                 e = d.getElementById("FCATN-" + id);
1435         } else {
1436                 e = d.getElementById("FEEDN-" + id);
1437         }
1438         if (e) {
1439                 return e.innerHTML.stripTags();
1440         } else {
1441                 return null;
1442         }
1443 }
1444
1445 function viewContentUrl(url) {
1446         getContentContext().location = url;
1447 }
1448
1449 function filterDlgCheckAction(sender) {
1450
1451         try {
1452
1453                 var action = sender[sender.selectedIndex].value;
1454
1455                 var form = document.forms["filter_add_form"];
1456
1457                 if (!form) {
1458                         form = document.forms["filter_edit_form"];
1459                 }
1460
1461                 if (!form) {
1462                         debug("filterDlgCheckAction: can't find form!");
1463                         return;
1464                 }
1465
1466                 var action_param = form.action_param;
1467
1468                 if (!action_param) {
1469                         debug("filterDlgCheckAction: can't find action param!");
1470                         return;
1471                 }
1472
1473                 // if selected action supports parameters, enable params field
1474                 if (action == 4 || action == 6) {
1475                         action_param.disabled = false;
1476                 } else {
1477                         action_param.disabled = true;
1478                 }
1479
1480         } catch (e) {
1481                 exception_error("filterDlgCheckAction", e);
1482         }
1483
1484 }
1485
1486 function explainError(code) {
1487         return displayDlg("explainError", code);
1488 }
1489
1490 // this only searches loaded headlines list, not in CDM
1491 function getRelativePostIds(id, limit) {
1492
1493         if (!limit) limit = 3;
1494
1495         debug("getRelativePostIds: " + id + " limit=" + limit);
1496
1497         var ids = new Array();
1498         var container = document.getElementById("headlinesList");
1499
1500         if (container) {
1501                 var rows = container.rows;
1502
1503                 for (var i = 0; i < rows.length; i++) {
1504                         var r_id = rows[i].id.replace("RROW-", "");
1505
1506                         if (r_id == id) {
1507 /*                              if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1508                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1509                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1510
1511                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1512                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1513                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", "")); */
1514
1515                                 for (var k = 1; k <= limit; k++) {
1516                                         var nid = false;
1517
1518                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1519                                         if (nid) ids.push(nid);
1520
1521                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1522                                         if (nid) ids.push(nid);
1523                                 }
1524
1525                                 return ids;
1526                         }
1527                 }
1528         }
1529
1530         return false;
1531 }
1532
1533 function openArticleInNewWindow(id) {
1534         try {
1535                 debug("openArticleInNewWindow: " + id);
1536
1537                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1538                 var wname = "ttrss_article_" + id;
1539
1540                 debug(query + " " + wname);
1541
1542                 var w = window.open("", wname);
1543
1544                 if (!w) notify_error("Failed to open window for the article");
1545
1546                 new Ajax.Request(query, {
1547                         onComplete: function(transport) {
1548                                 open_article_callback(transport);
1549                         } });
1550
1551
1552         } catch (e) {
1553                 exception_error("openArticleInNewWindow", e);
1554         }
1555 }
1556
1557 /* http://textsnippets.com/posts/show/835 */
1558
1559 Position.GetWindowSize = function(w) {
1560         w = w ? w : window;
1561         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1562         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1563         return [width, height]
1564 }
1565
1566 /* http://textsnippets.com/posts/show/836 */
1567
1568 Position.Center = function(element, parent) {
1569         var w, h, pw, ph;
1570         var d = Element.getDimensions(element);
1571         w = d.width;
1572         h = d.height;
1573         Position.prepare();
1574         if (!parent) {
1575                 var ws = Position.GetWindowSize();
1576                 pw = ws[0];
1577                 ph = ws[1];
1578         } else {
1579                 pw = parent.offsetWidth;
1580                 ph = parent.offsetHeight;
1581         }
1582         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1583         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1584 }
1585
1586
1587 function labeltest_callback(transport) {
1588         try {
1589                 var container = document.getElementById('label_test_result');
1590
1591                 container.innerHTML = transport.responseText;
1592                 if (!Element.visible(container)) {
1593                         Effect.SlideDown(container, { duration : 0.5 });
1594                 }
1595
1596                 notify("");
1597         } catch (e) {
1598                 exception_error("labeltest_callback", e);
1599         }
1600 }
1601
1602 function labelTest() {
1603
1604         try {
1605                 var container = document.getElementById('label_test_result');
1606
1607                 var form = document.forms['label_edit_form'];
1608
1609                 var sql_exp = form.sql_exp.value;
1610                 var description = form.description.value;
1611
1612                 notify_progress("Loading, please wait...");
1613
1614                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1615                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1616
1617                 new Ajax.Request(query, {
1618                         onComplete: function (transport) {
1619                                 labeltest_callback(transport);
1620                         } });
1621
1622                 return false;
1623
1624         } catch (e) {
1625                 exception_error("labelTest", e);
1626         }
1627 }
1628
1629 function isCdmMode() {
1630         return !document.getElementById("headlinesList");
1631 }
1632
1633 function getSelectedArticleIds2() {
1634         var rows = new Array();
1635         var cdm_mode = isCdmMode();
1636
1637         if (cdm_mode) {
1638                 rows = cdmGetSelectedArticles();
1639         } else {
1640                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1641         }
1642
1643         var ids = new Array();
1644
1645         for (var i = 0; i < rows.length; i++) {
1646                 var chk = document.getElementById("RCHK-" + rows[i]);
1647                 if (chk && chk.checked) {
1648                         ids.push(rows[i]);
1649                 }
1650         }
1651
1652         return ids;
1653 }
1654
1655 function displayHelpInfobox(topic_id) {
1656
1657         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1658
1659         var w = window.open(url, "ttrss_help",
1660                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1661
1662         return false;
1663 }
1664
1665 function focus_element(id) {
1666         try {
1667                 var e = document.getElementById(id);
1668                 if (e) e.focus();
1669         } catch (e) {
1670                 exception_error("focus_element", e);
1671         }
1672         return false;
1673 }
1674
1675 function loading_set_progress(p) {
1676         try {
1677                 if (p < last_progress_point || !Element.visible("overlay")) return;
1678
1679                 debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
1680
1681                 var o = document.getElementById("l_progress_i");
1682
1683                 new Effect.Scale(o, p, {
1684                         scaleY : false,
1685                         scaleFrom : last_progress_point,
1686                         scaleMode: { originalWidth : 200 },
1687                         queue: { position: 'end', scope: 'LSP-Q', limit: 1 } });
1688
1689                 last_progress_point = p;
1690
1691         } catch (e) {
1692                 exception_error("loading_set_progress", e);
1693         }
1694 }