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 = $("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 (!$("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 = $("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 = $("notify");
 169         var nb = $("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 = $(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 = $("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 = $("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 = $("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 = $("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 = $("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 = $(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
 462                                 if (ctr > global_unread) {
 463                                         offlineDownloadStart(1);
 464                                 }
 465
 466                                 global_unread = ctr;
 467                                 updateTitle();
 468                                 continue;
 469                         }
 470
 471                         if (id == "subscribed-feeds") {
 472                                 feeds_found = ctr;
 473                                 continue;
 474                         }
 475
 476                         if (t == "category") {
 477                                 var catctr = $("FCATCTR-" + id);
 478                                 if (catctr) {
 479                                         catctr.innerHTML = "(" + ctr + ")";
 480                                         if (ctr > 0) {
 481                                                 catctr.className = "catCtrHasUnread";
 482                                         } else {
 483                                                 catctr.className = "catCtrNoUnread";
 484                                         }
 485                                 }
 486                                 continue;
 487                         }
 488
 489                         var feedctr = $("FEEDCTR-" + id);
 490                         var feedu = $("FEEDU-" + id);
 491                         var feedr = $("FEEDR-" + id);
 492                         var feed_img = $("FIMG-" + id);
 493                         var feedlink = $("FEEDL-" + id);
 494                         var feedupd = $("FLUPD-" + id);
 495
 496                         if (updated && feedlink) {
 497                                 if (error) {
 498                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 499                                 } else {
 500                                         feedlink.title = "Updated: " + updated;
 501                                 }
 502                         }
 503
 504                         if (feedupd) {
 505                                 if (!updated) updated = "";
 506
 507                                 if (error) {
 508                                         if (xmsg) {
 509                                                 feedupd.innerHTML = updated + " " + xmsg + " (Error)";
 510                                         } else {
 511                                                 feedupd.innerHTML = updated + " (Error)";
 512                                         }
 513                                 } else {
 514                                         if (xmsg) {
 515                                                 feedupd.innerHTML = updated + " " + xmsg;
 516                                         } else {
 517                                                 feedupd.innerHTML = updated;
 518                                         }
 519                                 }
 520                         }
 521
 522                         if (has_img && feed_img) {
 523                                 if (!feed_img.src.match(id + ".ico")) {
 524                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 525                                 }
 526                         }
 527
 528                         if (feedlink && title) {
 529                                 feedlink.innerHTML = title;
 530                         }
 531
 532                         if (feedctr && feedu && feedr) {
 533
 534                                 if (parseInt(ctr) > 0 &&
 535                                                 parseInt(feedu.innerHTML) < parseInt(ctr) &&
 536                                                 id == getActiveFeedId() && scheduled_call) {
 537
 538                                         displayNewContentPrompt(id);
 539                                 }
 540
 541                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 542
 543                                 feedu.innerHTML = ctr;
 544
 545                                 if (error) {
 546                                         feedr.className = feedr.className.replace("feed", "error");
 547                                 } else if (id > 0) {
 548                                         feedr.className = feedr.className.replace("error", "feed");
 549                                 }
 550
 551                                 if (ctr > 0) {
 552                                         feedctr.className = "feedCtrHasUnread";
 553                                         if (!feedr.className.match("Unread")) {
 554                                                 var is_selected = feedr.className.match("Selected");
 555
 556                                                 feedr.className = feedr.className.replace("Selected", "");
 557                                                 feedr.className = feedr.className.replace("Unread", "");
 558
 559                                                 feedr.className = feedr.className + "Unread";
 560
 561                                                 if (is_selected) {
 562                                                         feedr.className = feedr.className + "Selected";
 563                                                 }
 564
 565                                         }
 566
 567                                         if (row_needs_hl) {
 568                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 569                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 570                                         }
 571                                 } else {
 572                                         feedctr.className = "feedCtrNoUnread";
 573                                         feedr.className = feedr.className.replace("Unread", "");
 574                                 }
 575                         }
 576                 }
 577
 578                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 579
 580                 var feeds_stored = number_of_feeds;
 581
 582                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 583
 584                 if (feeds_stored != feeds_found) {
 585                         number_of_feeds = feeds_found;
 586
 587                         if (feeds_stored != 0 && feeds_found != 0) {
 588                                 debug("Subscribed feed number changed, refreshing feedlist");
 589                                 setTimeout('updateFeedList(false, false)', 50);
 590                         }
 591                 } else {
 592 /*                      var fl = $("feeds-frame").innerHTML;
 593                         if (fl) {
 594                                 cache_invalidate("FEEDLIST");
 595                                 cache_inject("FEEDLIST", fl, getInitParam("num_feeds"));
 596                         } */
 597                 }
 598
 599         } catch (e) {
 600                 exception_error("parse_counters", e);
 601         }
 602 }
 603
 604 function parse_counters_reply(transport, scheduled_call) {
 605
 606         if (!transport.responseXML) {
 607                 notify_error("Backend did not return valid XML", true);
 608                 return;
 609         }
 610
 611         var reply = transport.responseXML.firstChild;
 612
 613         if (!reply) {
 614                 notify_error("Backend did not return expected XML object", true);
 615                 updateTitle("");
 616                 return;
 617         }
 618
 619         if (!transport_error_check(transport)) return;
 620
 621         var counters = reply.getElementsByTagName("counters")[0];
 622
 623         parse_counters(counters, scheduled_call);
 624
 625         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 626
 627         parse_runtime_info(runtime_info);
 628
 629         if (feedsSortByUnread()) {
 630                 resort_feedlist();
 631         }
 632
 633         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 634
 635 }
 636
 637 function all_counters_callback2(transport, async_call) {
 638         try {
 639                 if (async_call) async_counters_work = true;
 640
 641                 if (offline_mode) return;
 642
 643                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 644                 parse_counters_reply(transport);
 645                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 646
 647         } catch (e) {
 648                 exception_error("all_counters_callback2", e, transport);
 649         }
 650 }
 651
 652 function get_feed_unread(id) {
 653         try {
 654                 return parseInt($("FEEDU-" + id).innerHTML);
 655         } catch (e) {
 656                 return -1;
 657         }
 658 }
 659
 660 function get_cat_unread(id) {
 661         try {
 662                 var ctr = $("FCATCTR-" + id).innerHTML;
 663                 ctr = ctr.replace("(", "");
 664                 ctr = ctr.replace(")", "");
 665                 return parseInt(ctr);
 666         } catch (e) {
 667                 return -1;
 668         }
 669 }
 670
 671 function get_feed_entry_unread(elem) {
 672
 673         var id = elem.id.replace("FEEDR-", "");
 674
 675         if (id <= 0) {
 676                 return -1;
 677         }
 678
 679         try {
 680                 return parseInt($("FEEDU-" + id).innerHTML);
 681         } catch (e) {
 682                 return -1;
 683         }
 684 }
 685
 686 function get_feed_entry_name(elem) {
 687         var id = elem.id.replace("FEEDR-", "");
 688         return getFeedName(id);
 689 }
 690
 691
 692 function resort_category(node) {
 693
 694         try {
 695
 696                 debug("resort_category: " + node);
 697
 698                 var by_unread = feedsSortByUnread();
 699
 700                 var list = node.getElementsByTagName("LI");
 701
 702                 for (i = 0; i < list.length; i++) {
 703
 704                         for (j = i+1; j < list.length; j++) {
 705
 706                                 var tmp_val = get_feed_entry_unread(list[i]);
 707                                 var cur_val = get_feed_entry_unread(list[j]);
 708
 709                                 var tmp_name = get_feed_entry_name(list[i]);
 710                                 var cur_name = get_feed_entry_name(list[j]);
 711
 712                                 if ((by_unread && (cur_val > tmp_val)) || (!by_unread && (cur_name < tmp_name))) {
 713                                         tempnode_i = list[i].cloneNode(true);
 714                                         tempnode_j = list[j].cloneNode(true);
 715                                         node.replaceChild(tempnode_i, list[j]);
 716                                         node.replaceChild(tempnode_j, list[i]);
 717                                 }
 718                         }
 719                 }
 720
 721         } catch (e) {
 722                 exception_error("resort_category", e);
 723         }
 724
 725 }
 726
 727 function resort_feedlist() {
 728         debug("resort_feedlist");
 729
 730         if ($("FCATLIST--1")) {
 731
 732                 var lists = document.getElementsByTagName("UL");
 733
 734                 for (var i = 0; i < lists.length; i++) {
 735                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 736                                 resort_category(lists[i]);
 737                         }
 738                 }
 739
 740         } else {
 741                 resort_category($("feedList"));
 742         }
 743 }
 744
 745 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 746   * * @author Sundar Dorai-Raj
 747   * * Email: sdoraira@vt.edu
 748   * * This program is free software; you can redistribute it and/or
 749   * * modify it under the terms of the GNU General Public License
 750   * * as published by the Free Software Foundation; either version 2
 751   * * of the License, or (at your option) any later version,
 752   * * provided that any use properly credits the author.
 753   * * This program is distributed in the hope that it will be useful,
 754   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 755   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 756   * * GNU General Public License for more details at http://www.gnu.org * * */
 757
 758   var numbers=".0123456789";
 759   function isNumeric(x) {
 760     // is x a String or a character?
 761     if(x.length>1) {
 762       // remove negative sign
 763       x=Math.abs(x)+"";
 764       for(j=0;j<x.length;j++) {
 765         // call isNumeric recursively for each character
 766         number=isNumeric(x.substring(j,j+1));
 767         if(!number) return number;
 768       }
 769       return number;
 770     }
 771     else {
 772       // if x is number return true
 773       if(numbers.indexOf(x)>=0) return true;
 774       return false;
 775     }
 776   }
 777
 778
 779 function hideOrShowFeeds(hide) {
 780
 781         try {
 782
 783         debug("hideOrShowFeeds: " + hide);
 784
 785         if ($("FCATLIST--1")) {
 786
 787                 var lists = document.getElementsByTagName("UL");
 788
 789                 for (var i = 0; i < lists.length; i++) {
 790                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 791
 792                                 var id = lists[i].id.replace("FCATLIST-", "");
 793                                 hideOrShowFeedsCategory(id, hide);
 794                         }
 795                 }
 796
 797         } else {
 798                 hideOrShowFeedsCategory(null, hide);
 799         }
 800
 801         } catch (e) {
 802                 exception_error("hideOrShowFeeds", e);
 803         }
 804 }
 805
 806 function hideOrShowFeedsCategory(id, hide) {
 807
 808         try {
 809
 810                 var node = null;
 811                 var cat_node = null;
 812
 813                 if (id) {
 814                         node = $("FCATLIST-" + id);
 815                         cat_node = $("FCAT-" + id);
 816                 } else {
 817                         node = $("feedList"); // no categories
 818                 }
 819
 820         //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 821
 822                 var cat_unread = 0;
 823
 824                 if (!node) {
 825                         debug("hideOrShowFeeds: passed node is null, aborting");
 826                         return;
 827                 }
 828
 829         //      debug("cat: " + node.id);
 830
 831                 if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 832                         for (i = 0; i < node.childNodes.length; i++) {
 833                                 if (node.childNodes[i].nodeName != "LI") { continue; }
 834
 835                                 if (node.childNodes[i].style != undefined) {
 836
 837                                         var has_unread = (node.childNodes[i].className != "feed" &&
 838                                                 node.childNodes[i].className != "label" &&
 839                                                 !(!getInitParam("hide_read_shows_special") &&
 840                                                         node.childNodes[i].className == "virt") &&
 841                                                 node.childNodes[i].className != "error" &&
 842                                                 node.childNodes[i].className != "tag");
 843
 844         //                              debug(node.childNodes[i].id + " --> " + has_unread);
 845
 846                                         if (hide && !has_unread) {
 847                                                 //node.childNodes[i].style.display = "none";
 848                                                 var id = node.childNodes[i].id;
 849                                                 Effect.Fade(node.childNodes[i], {duration : 0.3,
 850                                                         queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 851                                         }
 852
 853                                         if (!hide) {
 854                                                 node.childNodes[i].style.display = "list-item";
 855                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 856                                         }
 857
 858                                         if (has_unread) {
 859                                                 node.childNodes[i].style.display = "list-item";
 860                                                 cat_unread++;
 861                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 862                                                 //Effect.Highlight(node.childNodes[i]);
 863                                         }
 864                                 }
 865                         }
 866                 }
 867
 868         //      debug("end cat: " + node.id + " unread " + cat_unread);
 869
 870                 if (cat_node) {
 871
 872                         if (cat_unread == 0) {
 873                                 if (cat_node.style == undefined) {
 874                                         debug("ERROR: supplied cat_node " + cat_node +
 875                                                 " has no styles. WTF?");
 876                                         return;
 877                                 }
 878                                 if (hide) {
 879                                         //cat_node.style.display = "none";
 880                                         Effect.Fade(cat_node, {duration : 0.3,
 881                                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 882                                 } else {
 883                                         cat_node.style.display = "list-item";
 884                                 }
 885                         } else {
 886                                 try {
 887                                         cat_node.style.display = "list-item";
 888                                 } catch (e) {
 889                                         debug(e);
 890                                 }
 891                         }
 892                 }
 893
 894 //      debug("unread for category: " + cat_unread);
 895
 896         } catch (e) {
 897                 exception_error("hideOrShowFeedsCategory", e);
 898         }
 899 }
 900
 901 function selectTableRow(r, do_select) {
 902         r.className = r.className.replace("Selected", "");
 903
 904         if (do_select) {
 905                 r.className = r.className + "Selected";
 906         }
 907 }
 908
 909 function selectTableRowById(elem_id, check_id, do_select) {
 910
 911         try {
 912
 913                 var row = $(elem_id);
 914
 915                 if (row) {
 916                         selectTableRow(row, do_select);
 917                 }
 918
 919                 var check = $(check_id);
 920
 921                 if (check) {
 922                         check.checked = do_select;
 923                 }
 924         } catch (e) {
 925                 exception_error("selectTableRowById", e);
 926         }
 927 }
 928
 929 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 930         classcheck, reset_others) {
 931
 932         var content = $(content_id);
 933
 934         if (!content) {
 935                 alert("[selectTableRows] Element " + content_id + " not found.");
 936                 return;
 937         }
 938
 939         for (i = 0; i < content.rows.length; i++) {
 940                 if (Element.visible(content.rows[i])) {
 941                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 942
 943                                 if (content.rows[i].id.match(prefix)) {
 944                                         selectTableRow(content.rows[i], do_select);
 945
 946                                         var row_id = content.rows[i].id.replace(prefix, "");
 947                                         var check = $(check_prefix + row_id);
 948
 949                                         if (check) {
 950                                                 check.checked = do_select;
 951                                         }
 952                                 } else if (reset_others) {
 953                                         selectTableRow(content.rows[i], false);
 954
 955                                         var row_id = content.rows[i].id.replace(prefix, "");
 956                                         var check = $(check_prefix + row_id);
 957
 958                                         if (check) {
 959                                                 check.checked = false;
 960                                         }
 961
 962                                 }
 963                         } else if (reset_others) {
 964                                 selectTableRow(content.rows[i], false);
 965
 966                                 var row_id = content.rows[i].id.replace(prefix, "");
 967                                 var check = $(check_prefix + row_id);
 968
 969                                 if (check) {
 970                                         check.checked = false;
 971                                 }
 972
 973                         }
 974                 }
 975         }
 976 }
 977
 978 function getSelectedTableRowIds(content_id, prefix) {
 979
 980         var content = $(content_id);
 981
 982         if (!content) {
 983                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 984                 return;
 985         }
 986
 987         var sel_rows = new Array();
 988
 989         for (i = 0; i < content.rows.length; i++) {
 990                 if (content.rows[i].id.match(prefix) &&
 991                                 content.rows[i].className.match("Selected")) {
 992
 993                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 994                         sel_rows.push(row_id);
 995                 }
 996         }
 997
 998         return sel_rows;
 999
1000 }
1001
1002 function toggleSelectRowById(sender, id) {
1003         var row = $(id);
1004
1005         if (sender.checked) {
1006                 if (!row.className.match("Selected")) {
1007                         row.className = row.className + "Selected";
1008                 }
1009         } else {
1010                 if (row.className.match("Selected")) {
1011                         row.className = row.className.replace("Selected", "");
1012                 }
1013         }
1014 }
1015
1016 function toggleSelectListRow(sender) {
1017         var parent_row = sender.parentNode;
1018
1019         if (sender.checked) {
1020                 if (!parent_row.className.match("Selected")) {
1021                         parent_row.className = parent_row.className + "Selected";
1022                 }
1023         } else {
1024                 if (parent_row.className.match("Selected")) {
1025                         parent_row.className = parent_row.className.replace("Selected", "");
1026                 }
1027         }
1028 }
1029
1030 function tSR(sender) {
1031         return toggleSelectRow(sender);
1032 }
1033
1034 function toggleSelectRow(sender) {
1035         var parent_row = sender.parentNode.parentNode;
1036
1037         if (sender.checked) {
1038                 if (!parent_row.className.match("Selected")) {
1039                         parent_row.className = parent_row.className + "Selected";
1040                 }
1041         } else {
1042                 if (parent_row.className.match("Selected")) {
1043                         parent_row.className = parent_row.className.replace("Selected", "");
1044                 }
1045         }
1046 }
1047
1048 function getNextUnreadCat(id) {
1049         try {
1050                 var rows = $("feedList").getElementsByTagName("LI");
1051                 var feeds = new Array();
1052
1053                 var unread_only = true;
1054                 var is_cat = true;
1055
1056                 for (var i = 0; i < rows.length; i++) {
1057                         if (rows[i].id.match("FCAT-")) {
1058                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1059
1060                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1061
1062                                         if (cat_id >= 0) {
1063                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1064                                                         feeds.push(cat_id);
1065                                                 }
1066                                         }
1067                                 }
1068                         }
1069                 }
1070
1071                 var idx = feeds.indexOf(id);
1072                 if (idx != -1 && idx < feeds.length) {
1073                         return feeds[idx+1];
1074                 } else {
1075                         return feeds.shift();
1076                 }
1077
1078         } catch (e) {
1079                 exception_error("getNextUnreadCat", e);
1080         }
1081 }
1082
1083 function getRelativeFeedId2(id, is_cat, direction, unread_only) {
1084         try {
1085
1086 //              alert(id + " IC: " + is_cat + " D: " + direction + " U: " + unread_only);
1087
1088                 var rows = $("feedList").getElementsByTagName("LI");
1089                 var feeds = new Array();
1090
1091                 for (var i = 0; i < rows.length; i++) {
1092                         if (rows[i].id.match("FEEDR-")) {
1093
1094                                 if (rows[i].id == "FEEDR-" + id && !is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1095
1096                                         if (!unread_only ||
1097                                                         (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1098                                                 feeds.push(rows[i].id.replace("FEEDR-", ""));
1099                                         }
1100                                 }
1101                         }
1102
1103                         if (rows[i].id.match("FCAT-")) {
1104                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1105
1106                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1107
1108                                         if (cat_id >= 0) {
1109                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1110                                                         feeds.push("CAT:"+cat_id);
1111                                                 }
1112                                         }
1113                                 }
1114                         }
1115                 }
1116
1117 //              alert(feeds.toString());
1118
1119                 if (!id) {
1120                         if (direction == "next") {
1121                                 return feeds.shift();
1122                         } else {
1123                                 return feeds.pop();
1124                         }
1125                 } else {
1126                         if (direction == "next") {
1127                                 if (is_cat) id = "CAT:" + id;
1128                                 var idx = feeds.indexOf(id);
1129                                 if (idx != -1 && idx < feeds.length) {
1130                                         return feeds[idx+1];
1131                                 } else {
1132                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1133                                 }
1134                         } else {
1135                                 if (is_cat) id = "CAT:" + id;
1136                                 var idx = feeds.indexOf(id);
1137                                 if (idx > 0) {
1138                                         return feeds[idx-1];
1139                                 } else {
1140                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1141                                 }
1142                         }
1143
1144                 }
1145
1146         } catch (e) {
1147                 exception_error("getRelativeFeedId2", e);
1148         }
1149 }
1150
1151
1152 function getRelativeFeedId(list, id, direction, unread_only) {
1153         var rows = list.getElementsByTagName("LI");
1154         var feeds = new Array();
1155
1156         for (var i = 0; i < rows.length; i++) {
1157                 if (rows[i].id.match("FEEDR-")) {
1158
1159                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1160
1161                                 if (!unread_only ||
1162                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1163                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1164                                 }
1165                         }
1166                 }
1167         }
1168
1169         if (!id) {
1170                 if (direction == "next") {
1171                         return feeds.shift();
1172                 } else {
1173                         return feeds.pop();
1174                 }
1175         } else {
1176                 if (direction == "next") {
1177                         var idx = feeds.indexOf(id);
1178                         if (idx != -1 && idx < feeds.length) {
1179                                 return feeds[idx+1];
1180                         } else {
1181                                 return getRelativeFeedId(list, false, direction, unread_only);
1182                         }
1183                 } else {
1184                         var idx = feeds.indexOf(id);
1185                         if (idx > 0) {
1186                                 return feeds[idx-1];
1187                         } else {
1188                                 return getRelativeFeedId(list, false, direction, unread_only);
1189                         }
1190                 }
1191
1192         }
1193 }
1194
1195 function showBlockElement(id, h_id) {
1196         var elem = $(id);
1197
1198         if (elem) {
1199                 elem.style.display = "block";
1200
1201                 if (h_id) {
1202                         elem = $(h_id);
1203                         if (elem) {
1204                                 elem.style.display = "none";
1205                         }
1206                 }
1207         } else {
1208                 alert("[showBlockElement] can't find element with id " + id);
1209         }
1210 }
1211
1212 function appearBlockElement_afh(effect) {
1213
1214 }
1215
1216 function checkboxToggleElement(elem, id) {
1217         if (elem.checked) {
1218                 Effect.Appear(id, {duration : 0.5});
1219         } else {
1220                 Effect.Fade(id, {duration : 0.5});
1221         }
1222 }
1223
1224 function appearBlockElement(id, h_id) {
1225
1226         try {
1227                 if (h_id) {
1228                         Effect.Fade(h_id);
1229                 }
1230                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1231         } catch (e) {
1232                 exception_error("appearBlockElement", e);
1233         }
1234
1235 }
1236
1237 function hideParentElement(e) {
1238         e.parentNode.style.display = "none";
1239 }
1240
1241 function dropboxSelect(e, v) {
1242         for (i = 0; i < e.length; i++) {
1243                 if (e[i].value == v) {
1244                         e.selectedIndex = i;
1245                         break;
1246                 }
1247         }
1248 }
1249
1250 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1251 // bugfixed just a little bit :-)
1252 function getURLParam(strParamName){
1253   var strReturn = "";
1254   var strHref = window.location.href;
1255
1256   if (strHref.indexOf("#") == strHref.length-1) {
1257                 strHref = strHref.substring(0, strHref.length-1);
1258   }
1259
1260   if ( strHref.indexOf("?") > -1 ){
1261     var strQueryString = strHref.substr(strHref.indexOf("?"));
1262     var aQueryString = strQueryString.split("&");
1263     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1264       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1265         var aParam = aQueryString[iParam].split("=");
1266         strReturn = aParam[1];
1267         break;
1268       }
1269     }
1270   }
1271   return strReturn;
1272 }
1273
1274 function leading_zero(p) {
1275         var s = String(p);
1276         if (s.length == 1) s = "0" + s;
1277         return s;
1278 }
1279
1280 function closeErrorBox() {
1281
1282         if (Element.visible("errorBoxShadow")) {
1283                 Element.hide("dialog_overlay");
1284                 Element.hide("errorBoxShadow");
1285
1286                 enableHotkeys();
1287         }
1288
1289         return false;
1290 }
1291
1292 function closeInfoBox(cleanup) {
1293
1294         try {
1295                 enableHotkeys();
1296
1297                 if (Element.visible("infoBoxShadow")) {
1298                         Element.hide("dialog_overlay");
1299                         Element.hide("infoBoxShadow");
1300
1301                         if (cleanup) $("infoBoxShadow").innerHTML = "&nbsp;";
1302                 }
1303         } catch (e) {
1304                 exception_error("closeInfoBox", e);
1305         }
1306
1307         return false;
1308 }
1309
1310
1311 function displayDlg(id, param) {
1312
1313         notify_progress("Loading, please wait...", true);
1314
1315         disableHotkeys();
1316
1317         var query = "backend.php?op=dlg&id=" +
1318                 param_escape(id) + "&param=" + param_escape(param);
1319
1320         new Ajax.Request(query, {
1321                 onComplete: function (transport) {
1322                         infobox_callback2(transport);
1323                 } });
1324
1325         return false;
1326 }
1327
1328 function infobox_submit_callback2(transport) {
1329         closeInfoBox();
1330
1331         try {
1332                 // called from prefs, reload tab
1333                 if (typeof active_tab != 'undefined' && active_tab) {
1334                         selectTab(active_tab, false);
1335                 }
1336         } catch (e) { }
1337
1338         if (transport.responseText) {
1339                 notify_info(transport.responseText);
1340         }
1341 }
1342
1343 function infobox_callback2(transport) {
1344         try {
1345
1346                 debug("infobox_callback2");
1347
1348                 var box = $('infoBox');
1349
1350                 if (box) {
1351
1352                         if (!getInitParam("infobox_disable_overlay")) {
1353                                 Element.show("dialog_overlay");
1354                         }
1355
1356                         box.innerHTML=transport.responseText;
1357                         Element.show("infoBoxShadow");
1358                         //Effect.SlideDown("infoBoxShadow", {duration : 1.0});
1359
1360
1361                 }
1362
1363                 /* FIXME this needs to be moved out somewhere */
1364
1365                 if ($("tags_choices")) {
1366                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1367                                 "backend.php?op=rpc&subop=completeTags",
1368                                 { tokens: ',', paramName: "search" });
1369                 }
1370
1371                 disableHotkeys();
1372
1373                 notify("");
1374         } catch (e) {
1375                 exception_error("infobox_callback2", e);
1376         }
1377 }
1378
1379 function createFilter() {
1380
1381         try {
1382
1383                 var form = document.forms['filter_add_form'];
1384                 var reg_exp = form.reg_exp.value;
1385
1386                 if (reg_exp == "") {
1387                         alert(__("Can't add filter: nothing to match on."));
1388                         return false;
1389                 }
1390
1391                 var query = Form.serialize("filter_add_form");
1392
1393                 // we can be called from some other tab in Prefs
1394                 if (typeof active_tab != 'undefined' && active_tab) {
1395                         active_tab = "filterConfig";
1396                 }
1397
1398                 new Ajax.Request("backend.php?" + query, {
1399                         onComplete: function (transport) {
1400                                 infobox_submit_callback2(transport);
1401                         } });
1402
1403                 return true;
1404
1405         } catch (e) {
1406                 exception_error("createFilter", e);
1407         }
1408 }
1409
1410 function toggleSubmitNotEmpty(e, submit_id) {
1411         try {
1412                 $(submit_id).disabled = (e.value == "")
1413         } catch (e) {
1414                 exception_error("toggleSubmitNotEmpty", e);
1415         }
1416 }
1417
1418 function isValidURL(s) {
1419         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1420 }
1421
1422 function subscribeToFeed() {
1423
1424         var form = document.forms['feed_add_form'];
1425         var feed_url = form.feed_url.value;
1426
1427         if (feed_url == "") {
1428                 alert(__("Can't subscribe: no feed URL given."));
1429                 return false;
1430         }
1431
1432         notify_progress(__("Subscribing to feed..."), true);
1433
1434         closeInfoBox();
1435
1436         var feeds_doc = document;
1437
1438 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1439
1440         var query = Form.serialize("feed_add_form");
1441
1442         debug("subscribe q: " + query);
1443
1444         new Ajax.Request("backend.php", {
1445                 parameters: query,
1446                 onComplete: function(transport) {
1447                         dlg_frefresh_callback(transport);
1448                 } });
1449
1450         return false;
1451 }
1452
1453 function filterCR(e, f)
1454 {
1455      var key;
1456
1457      if(window.event)
1458           key = window.event.keyCode;     //IE
1459      else
1460           key = e.which;     //firefox
1461
1462         if (key == 13) {
1463                 if (typeof f != 'undefined') {
1464                         f();
1465                         return false;
1466                 } else {
1467                         return false;
1468                 }
1469         } else {
1470                 return true;
1471         }
1472 }
1473
1474 var debug_last_class = "even";
1475
1476 function debug(msg) {
1477
1478         if (debug_last_class == "even") {
1479                 debug_last_class = "odd";
1480         } else {
1481                 debug_last_class = "even";
1482         }
1483
1484         var c = $('debug_output');
1485         if (c && Element.visible(c)) {
1486                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1487                         c.removeChild(c.lastChild);
1488                 }
1489
1490                 var d = new Date();
1491                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1492                         ":" + leading_zero(d.getSeconds());
1493                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1494                         msg + "</li>" + c.innerHTML;
1495         }
1496 }
1497
1498 function getInitParam(key) {
1499         return init_params[key];
1500 }
1501
1502 function storeInitParam(key, value) {
1503         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1504         init_params[key] = value;
1505 }
1506
1507 function fatalError(code, msg, ext_info) {
1508         try {
1509
1510                 if (!ext_info) ext_info = "N/A";
1511
1512                 if (code == 6) {
1513                         window.location.href = "tt-rss.php";
1514                 } else if (code == 5) {
1515                         window.location.href = "update.php";
1516                 } else {
1517
1518                         if (msg == "") msg = "Unknown error";
1519
1520                         var ebc = $("xebContent");
1521
1522                         if (ebc) {
1523
1524                                 Element.show("dialog_overlay");
1525                                 Element.show("errorBoxShadow");
1526                                 Element.hide("xebBtn");
1527
1528                                 if (ext_info) {
1529                                         if (ext_info.responseText) {
1530                                                 ext_info = ext_info.responseText;
1531                                         }
1532                                 }
1533
1534                                 ebc.innerHTML =
1535                                         "<div><b>Error message:</b></div>" +
1536                                         "<pre>" + msg + "</pre>" +
1537                                         "<div><b>Additional information:</b></div>" +
1538                                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
1539                         }
1540                 }
1541
1542         } catch (e) {
1543                 exception_error("fatalError", e);
1544         }
1545 }
1546
1547 function getFeedName(id, is_cat) {
1548         var e;
1549
1550         if (is_cat) {
1551                 e = $("FCATN-" + id);
1552         } else {
1553                 e = $("FEEDN-" + id);
1554         }
1555         if (e) {
1556                 return e.innerHTML.stripTags();
1557         } else {
1558                 return null;
1559         }
1560 }
1561
1562 function filterDlgCheckType(sender) {
1563
1564         try {
1565
1566                 var ftype = sender[sender.selectedIndex].value;
1567
1568                 var form = document.forms["filter_add_form"];
1569
1570                 if (!form) {
1571                         form = document.forms["filter_edit_form"];
1572                 }
1573
1574                 if (!form) {
1575                         debug("filterDlgCheckType: can't find form!");
1576                         return;
1577                 }
1578
1579                 // if selected filter type is 5 (Date) enable the modifier dropbox
1580                 if (ftype == 5) {
1581                         Element.show("filter_dlg_date_mod_box");
1582                         Element.show("filter_dlg_date_chk_box");
1583                 } else {
1584                         Element.hide("filter_dlg_date_mod_box");
1585                         Element.hide("filter_dlg_date_chk_box");
1586
1587                 }
1588
1589         } catch (e) {
1590                 exception_error("filterDlgCheckType", e);
1591         }
1592
1593 }
1594
1595 function filterDlgCheckAction(sender) {
1596
1597         try {
1598
1599                 var action = sender[sender.selectedIndex].value;
1600
1601                 var form = document.forms["filter_add_form"];
1602
1603                 if (!form) {
1604                         form = document.forms["filter_edit_form"];
1605                 }
1606
1607                 if (!form) {
1608                         debug("filterDlgCheckAction: can't find form!");
1609                         return;
1610                 }
1611
1612                 var action_param = $("filter_dlg_param_box");
1613
1614                 if (!action_param) {
1615                         debug("filterDlgCheckAction: can't find action param box!");
1616                         return;
1617                 }
1618
1619                 // if selected action supports parameters, enable params field
1620                 if (action == 4 || action == 6 || action == 7) {
1621                         Element.show(action_param);
1622                         if (action != 7) {
1623                                 Element.show(form.action_param);
1624                                 Element.hide(form.action_param_label);
1625                         } else {
1626                                 Element.show(form.action_param_label);
1627                                 Element.hide(form.action_param);
1628                         }
1629                 } else {
1630                         Element.hide(action_param);
1631                 }
1632
1633         } catch (e) {
1634                 exception_error("filterDlgCheckAction", e);
1635         }
1636
1637 }
1638
1639 function filterDlgCheckDate() {
1640         try {
1641                 var form = document.forms["filter_add_form"];
1642
1643                 if (!form) {
1644                         form = document.forms["filter_edit_form"];
1645                 }
1646
1647                 if (!form) {
1648                         debug("filterDlgCheckAction: can't find form!");
1649                         return;
1650                 }
1651
1652                 var reg_exp = form.reg_exp.value;
1653
1654                 var query = "backend.php?op=rpc&subop=checkDate&date=" + reg_exp;
1655
1656                 new Ajax.Request(query, {
1657                         onComplete: function(transport) {
1658
1659                                 var form = document.forms["filter_add_form"];
1660
1661                                 if (!form) {
1662                                         form = document.forms["filter_edit_form"];
1663                                 }
1664
1665                                 if (transport.responseXML) {
1666                                         var result = transport.responseXML.getElementsByTagName("result")[0];
1667
1668                                         if (result && result.firstChild) {
1669                                                 if (result.firstChild.nodeValue == "1") {
1670
1671                                                         new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
1672
1673                                                         return;
1674                                                 }
1675                                         }
1676                                 }
1677
1678                                 new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
1679
1680                         } });
1681
1682
1683         } catch (e) {
1684                 exception_error("filterDlgCheckDate", e);
1685         }
1686 }
1687
1688 function explainError(code) {
1689         return displayDlg("explainError", code);
1690 }
1691
1692 // this only searches loaded headlines list, not in CDM
1693 function getRelativePostIds(id, limit) {
1694
1695         if (!limit) limit = 3;
1696
1697         debug("getRelativePostIds: " + id + " limit=" + limit);
1698
1699         var ids = new Array();
1700         var container = $("headlinesList");
1701
1702         if (container) {
1703                 var rows = container.rows;
1704
1705                 for (var i = 0; i < rows.length; i++) {
1706                         var r_id = rows[i].id.replace("RROW-", "");
1707
1708                         if (r_id == id) {
1709                                 for (var k = 1; k <= limit; k++) {
1710                                         var nid = false;
1711
1712                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1713                                         if (nid) ids.push(nid);
1714
1715                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1716                                         if (nid) ids.push(nid);
1717                                 }
1718
1719                                 return ids;
1720                         }
1721                 }
1722         }
1723
1724         return false;
1725 }
1726
1727 function openArticleInNewWindow(id) {
1728         try {
1729                 debug("openArticleInNewWindow: " + id);
1730
1731                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1732                 var wname = "ttrss_article_" + id;
1733
1734                 debug(query + " " + wname);
1735
1736                 var w = window.open("", wname);
1737
1738                 if (!w) notify_error("Failed to open window for the article");
1739
1740                 new Ajax.Request(query, {
1741                         onComplete: function(transport) {
1742                                 open_article_callback(transport);
1743                         } });
1744
1745
1746         } catch (e) {
1747                 exception_error("openArticleInNewWindow", e);
1748         }
1749 }
1750
1751 /* http://textsnippets.com/posts/show/835 */
1752
1753 Position.GetWindowSize = function(w) {
1754         w = w ? w : window;
1755         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1756         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1757         return [width, height]
1758 }
1759
1760 /* http://textsnippets.com/posts/show/836 */
1761
1762 Position.Center = function(element, parent) {
1763         var w, h, pw, ph;
1764         var d = Element.getDimensions(element);
1765         w = d.width;
1766         h = d.height;
1767         Position.prepare();
1768         if (!parent) {
1769                 var ws = Position.GetWindowSize();
1770                 pw = ws[0];
1771                 ph = ws[1];
1772         } else {
1773                 pw = parent.offsetWidth;
1774                 ph = parent.offsetHeight;
1775         }
1776         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1777         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1778 }
1779
1780
1781 function labeltest_callback(transport) {
1782         try {
1783                 var container = $('label_test_result');
1784
1785                 container.innerHTML = transport.responseText;
1786                 if (!Element.visible(container)) {
1787                         Effect.SlideDown(container, { duration : 0.5 });
1788                 }
1789
1790                 notify("");
1791         } catch (e) {
1792                 exception_error("labeltest_callback", e);
1793         }
1794 }
1795
1796 function labelTest() {
1797
1798         try {
1799                 var container = $('label_test_result');
1800
1801                 var form = document.forms['label_edit_form'];
1802
1803                 var sql_exp = form.sql_exp.value;
1804                 var description = form.description.value;
1805
1806                 notify_progress("Loading, please wait...");
1807
1808                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1809                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1810
1811                 new Ajax.Request(query, {
1812                         onComplete: function (transport) {
1813                                 labeltest_callback(transport);
1814                         } });
1815
1816                 return false;
1817
1818         } catch (e) {
1819                 exception_error("labelTest", e);
1820         }
1821 }
1822
1823 function isCdmMode() {
1824         return !$("headlinesList");
1825 }
1826
1827 function getSelectedArticleIds2() {
1828         var rows = new Array();
1829         var cdm_mode = isCdmMode();
1830
1831         if (cdm_mode) {
1832                 rows = cdmGetSelectedArticles();
1833         } else {
1834                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1835         }
1836
1837         var ids = new Array();
1838
1839         for (var i = 0; i < rows.length; i++) {
1840                 var chk = $("RCHK-" + rows[i]);
1841                 if (chk && chk.checked) {
1842                         ids.push(rows[i]);
1843                 }
1844         }
1845
1846         return ids;
1847 }
1848
1849 function displayHelpInfobox(topic_id) {
1850
1851         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1852
1853         var w = window.open(url, "ttrss_help",
1854                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1855
1856 }
1857
1858 function focus_element(id) {
1859         try {
1860                 var e = $(id);
1861                 if (e) e.focus();
1862         } catch (e) {
1863                 exception_error("focus_element", e);
1864         }
1865         return false;
1866 }
1867
1868 function loading_set_progress(p) {
1869         try {
1870                 if (p < last_progress_point || !Element.visible("overlay")) return;
1871
1872                 debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
1873
1874                 var o = $("l_progress_i");
1875
1876 //              o.style.width = (p * 2) + "px";
1877
1878                 new Effect.Scale(o, p, {
1879                         scaleY : false,
1880                         scaleFrom : last_progress_point,
1881                         scaleMode: { originalWidth : 200 },
1882                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1883
1884                 last_progress_point = p;
1885
1886         } catch (e) {
1887                 exception_error("loading_set_progress", e);
1888         }
1889 }
1890
1891 function remove_splash() {
1892         if (Element.visible("overlay")) {
1893                 debug("about to remove splash, OMG!");
1894                 Element.hide("overlay");
1895                 debug("removed splash!");
1896         }
1897 }
1898
1899 function addLabelExample() {
1900         try {
1901                 var form = document.forms["label_edit_form"];
1902
1903                 var text = form.sql_exp;
1904                 var op = form.label_fields[form.label_fields.selectedIndex];
1905                 var p = form.label_fields_param;
1906
1907                 if (op) {
1908                         op = op.value;
1909
1910                         var tmp = "";
1911
1912                         if (text.value != "") {
1913                                 if (text.value.substring(text.value.length-3, 3).toUpperCase() != "AND") {
1914                                         tmp = " AND ";
1915                                 } else {
1916                                         tmp = " ";
1917                                 }
1918                         }
1919
1920                         if (op == "unread") {
1921                                 tmp = tmp + "unread = true";
1922                         }
1923
1924                         if (op == "updated") {
1925                                 tmp = tmp + "last_read is null and unread = false";
1926                         }
1927
1928                         if (op == "kw_title") {
1929                                 if (p.value == "") {
1930                                         alert("This action requires a parameter.");
1931                                         return false;
1932                                 }
1933                                 tmp = tmp + "ttrss_entries.title like '%"+p.value+"%'";
1934                         }
1935
1936                         if (op == "kw_content") {
1937                                 if (p.value == "") {
1938                                         alert("This action requires a parameter.");
1939                                         return false;
1940                                 }
1941
1942                                 tmp = tmp + "ttrss_entries.content like '%"+p.value+"%'";
1943                         }
1944
1945                         if (op == "scoreE") {
1946                                 if (isNaN(parseInt(p.value))) {
1947                                         alert("This action expects numeric parameter.");
1948                                         return false;
1949                                 }
1950                                 tmp = tmp + "score = " + p.value;
1951                         }
1952
1953                         if (op == "scoreG") {
1954                                 if (isNaN(parseInt(p.value))) {
1955                                         alert("This action expects numeric parameter.");
1956                                         return false;
1957                                 }
1958                                 tmp = tmp + "score > " + p.value;
1959                         }
1960
1961                         if (op == "scoreL") {
1962                                 if (isNaN(parseInt(p.value))) {
1963                                         alert("This action expects numeric parameter.");
1964                                         return false;
1965                                 }
1966                                 tmp = tmp + "score < " + p.value;
1967                         }
1968
1969                         if (op == "newerD") {
1970                                 if (isNaN(parseInt(p.value))) {
1971                                         alert("This action expects numeric parameter.");
1972                                         return false;
1973                                 }
1974                                 tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" days'";
1975                         }
1976
1977                         if (op == "newerH") {
1978                                 if (isNaN(parseInt(p.value))) {
1979                                         alert("This action expects numeric parameter.");
1980                                         return false;
1981                                 }
1982
1983                                 tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" hours'";
1984                         }
1985
1986                         text.value = text.value + tmp;
1987
1988                         p.value = "";
1989
1990                 }
1991
1992         } catch (e) {
1993                 exception_error("addLabelExample", e);
1994         }
1995
1996         return false;
1997 }
1998
1999 function labelFieldsCheck(elem) {
2000         try {
2001                 var op = elem[elem.selectedIndex].value;
2002
2003                 var p = document.forms["label_edit_form"].label_fields_param;
2004
2005                 if (op == "kw_title" || op == "kw_content" || op == "scoreL" ||
2006                                 op == "scoreG" ||       op == "scoreE" || op == "newerD" ||
2007                                 op == "newerH" ) {
2008                         Element.show(p);
2009                 } else {
2010                         Element.hide(p);
2011                 }
2012
2013         } catch (e) {
2014                 exception_error("labelFieldsCheck", e);
2015
2016         }
2017 }
2018
2019 function getSelectedFeedsFromBrowser() {
2020
2021         var list = $("browseFeedList");
2022         if (!list) list = $("browseBigFeedList");
2023
2024         var selected = new Array();
2025
2026         for (i = 0; i < list.childNodes.length; i++) {
2027                 var child = list.childNodes[i];
2028                 if (child.id && child.id.match("FBROW-")) {
2029                         var id = child.id.replace("FBROW-", "");
2030
2031                         var cb = $("FBCHK-" + id);
2032
2033                         if (cb.checked) {
2034                                 selected.push(id);
2035                         }
2036                 }
2037         }
2038
2039         return selected;
2040 }
2041
2042 function updateFeedBrowser() {
2043         try {
2044
2045                 var query = "backend.php?op=rpc&subop=feedBrowser";
2046
2047                 var search = $("feed_browser_search");
2048                 var limit = $("feed_browser_limit");
2049
2050                 if (limit) {
2051                         query = query + "&limit=" + limit[limit.selectedIndex].value;
2052                 }
2053
2054                 if (search) {
2055                         query = query + "&search=" + param_escape(search.value);
2056                 }
2057
2058                 //notify_progress("Loading, please wait...", true);
2059
2060                 Element.show('feed_browser_spinner');
2061
2062                 new Ajax.Request(query, {
2063                         onComplete: function(transport) {
2064                                 notify('');
2065
2066                                 Element.hide('feed_browser_spinner');
2067
2068                                 var c = $("browseFeedList");
2069                                 var r = transport.responseXML.getElementsByTagName("content")[0];
2070                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
2071                                 var sb = $("feed_browser_subscribe");
2072
2073                                 if (c && r) {
2074                                         c.innerHTML = r.firstChild.nodeValue;
2075                                 }
2076
2077                                 if (nr && sb) {
2078                                         if (nr.getAttribute("value") > 0) {
2079                                                 sb.disabled = false;
2080                                         } else {
2081                                                 sb.disabled = true;
2082                                         }
2083                                 }
2084
2085                         } });
2086
2087
2088         } catch (e) {
2089                 exception_error("updateFeedBrowser", e);
2090         }
2091 }
2092
2093 function browseFeeds(limit) {
2094
2095         try {
2096
2097                 var query = "backend.php?op=pref-feeds&subop=browse";
2098
2099                 notify_progress("Loading, please wait...", true);
2100
2101                 new Ajax.Request(query, {
2102                         onComplete: function(transport) {
2103                                 infobox_callback2(transport);
2104                         } });
2105
2106                 return false;
2107         } catch (e) {
2108                 exception_error("browseFeeds", e);
2109         }
2110 }
2111
2112 function transport_error_check(transport) {
2113         try {
2114                 if (transport.responseXML) {
2115                         var error = transport.responseXML.getElementsByTagName("error")[0];
2116
2117                         if (error) {
2118                                 var code = error.getAttribute("error-code");
2119                                 var msg = error.getAttribute("error-msg");
2120                                 if (code != 0) {
2121                                         fatalError(code, msg);
2122                                         return false;
2123                                 }
2124                         }
2125                 }
2126         } catch (e) {
2127                 exception_error("check_for_error_xml", e);
2128         }
2129         return true;
2130 }
2131
2132 function strip_tags(s) {
2133         return s.replace(/<\/?[^>]+(>|$)/g, "");
2134 }
2135
2136 function truncate_string(s, length) {
2137         if (!length) length = 30;
2138         var tmp = s.substring(0, length);
2139         if (s.length > length) tmp += "&hellip;";
2140         return tmp;
2141 }
2142
2143 /*
2144 function switchToFlash(e) {
2145         try {
2146                 var targ = e;
2147                 if (!e) var e = window.event;
2148                 if (e.target) targ = e.target;
2149                 else if (e.srcElement) targ = e.srcElement;
2150                 if (targ.nodeType == 3) // defeat Safari bug
2151                         targ = targ.parentNode;
2152
2153                 //targ is the link that was clicked
2154                 var audioTag=targ;
2155                 do {
2156                         audioTag=audioTag.previousSibling;
2157                 } while(audioTag && audioTag.nodeType != 1)
2158
2159                 var flashPlayer = audioTag.getElementsByTagName('span')[0];
2160                 targ.parentNode.insertBefore(flashPlayer,targ);
2161                 targ.parentNode.removeChild(targ);
2162                 audioTag.parentNode.removeChild(audioTag);
2163
2164                 return false;
2165         } catch (e) {
2166                 exception_error("switchToFlash", e);
2167         }
2168 }
2169
2170 function html5AudioOrFlash(type) {
2171         var audioTag = document.createElement('audio');
2172         if(! audioTag.canPlayType || audioTag.canPlayType(type) == "no" ||
2173                         audioTag.canPlayType(type) == ""){
2174                 if($('switchToFlashLink')){
2175                         switchToFlash($('switchToFlashLink'));
2176                 }
2177         }
2178 } */
2179
2180 function hotkey_prefix_timeout() {
2181         try {
2182
2183                 var date = new Date();
2184                 var ts = Math.round(date.getTime() / 1000);
2185
2186                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
2187                         debug("hotkey_prefix seems to be stuck, aborting");
2188                         hotkey_prefix_pressed = false;
2189                         hotkey_prefix = false;
2190                         Element.hide('cmdline');
2191                 }
2192
2193                 setTimeout("hotkey_prefix_timeout()", 1000);
2194
2195         } catch  (e) {
2196                 exception_error("hotkey_prefix_timeout", e);
2197         }
2198 }
2199
2200 function hideAuxDlg() {
2201         try {
2202                 Element.hide('auxDlg');
2203         } catch (e) {
2204                 exception_error("hideAuxDlg", e);
2205         }
2206 }
2207
2208 function displayNewContentPrompt(id) {
2209         try {
2210                 var msg = __("New articles in &laquo;%s&raquo;.") +
2211                         " <a href='#' onclick='viewfeed("+id+")'>" + __('Click to view') + "</a>.";
2212
2213                 msg = msg.replace("%s", getFeedName(id));
2214
2215                 $('auxDlg').innerHTML = msg;
2216
2217                 Element.show('auxDlg');
2218
2219         } catch (e) {
2220                 exception_error("displayNewContentPrompt", e);
2221         }
2222 }