functions.js

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