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