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 != "tag");
1015
1016         //                      debug(node.childNodes[i].id + " --> " + has_unread);
1017
1018                                 if (hide && !has_unread) {
1019                                         //node.childNodes[i].style.display = "none";
1020                                         Effect.Fade(node.childNodes[i], {duration : 0.3});
1021                                 }
1022
1023                                 if (!hide) {
1024                                         node.childNodes[i].style.display = "list-item";
1025                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
1026                                 }
1027
1028                                 if (has_unread) {
1029                                         node.childNodes[i].style.display = "list-item";
1030                                         cat_unread++;
1031                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
1032                                         //Effect.Highlight(node.childNodes[i]);
1033                                 }
1034                         }
1035                 }
1036         }
1037
1038         if (cat_unread == 0) {
1039                 if (cat_node.style == undefined) {
1040                         debug("ERROR: supplied cat_node " + cat_node +
1041                                 " has no styles. WTF?");
1042                         return;
1043                 }
1044                 if (hide) {
1045                         //cat_node.style.display = "none";
1046                         Effect.Fade(cat_node, {duration : 0.3});
1047                 } else {
1048                         cat_node.style.display = "list-item";
1049                 }
1050         } else {
1051                 try {
1052                         cat_node.style.display = "list-item";
1053                 } catch (e) {
1054                         debug(e);
1055                 }
1056         }
1057
1058 //      debug("unread for category: " + cat_unread);
1059 }
1060
1061 function selectTableRow(r, do_select) {
1062         r.className = r.className.replace("Selected", "");
1063
1064         if (do_select) {
1065                 r.className = r.className + "Selected";
1066         }
1067 }
1068
1069 function selectTableRowById(elem_id, check_id, do_select) {
1070
1071         try {
1072
1073                 var row = document.getElementById(elem_id);
1074
1075                 if (row) {
1076                         selectTableRow(row, do_select);
1077                 }
1078
1079                 var check = document.getElementById(check_id);
1080
1081                 if (check) {
1082                         check.checked = do_select;
1083                 }
1084         } catch (e) {
1085                 exception_error("selectTableRowById", e);
1086         }
1087 }
1088
1089 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1090         classcheck, reset_others) {
1091
1092         var content = document.getElementById(content_id);
1093
1094         if (!content) {
1095                 alert("[selectTableRows] Element " + content_id + " not found.");
1096                 return;
1097         }
1098
1099         for (i = 0; i < content.rows.length; i++) {
1100                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1101
1102                         if (content.rows[i].id.match(prefix)) {
1103                                 selectTableRow(content.rows[i], do_select);
1104
1105                                 var row_id = content.rows[i].id.replace(prefix, "");
1106                                 var check = document.getElementById(check_prefix + row_id);
1107
1108                                 if (check) {
1109                                         check.checked = do_select;
1110                                 }
1111                         } else if (reset_others) {
1112                                 selectTableRow(content.rows[i], false);
1113
1114                                 var row_id = content.rows[i].id.replace(prefix, "");
1115                                 var check = document.getElementById(check_prefix + row_id);
1116
1117                                 if (check) {
1118                                         check.checked = false;
1119                                 }
1120
1121                         }
1122                 } else if (reset_others) {
1123                         selectTableRow(content.rows[i], false);
1124
1125                         var row_id = content.rows[i].id.replace(prefix, "");
1126                         var check = document.getElementById(check_prefix + row_id);
1127
1128                         if (check) {
1129                                 check.checked = false;
1130                         }
1131
1132                 }
1133         }
1134 }
1135
1136 function getSelectedTableRowIds(content_id, prefix) {
1137
1138         var content = document.getElementById(content_id);
1139
1140         if (!content) {
1141                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1142                 return;
1143         }
1144
1145         var sel_rows = new Array();
1146
1147         for (i = 0; i < content.rows.length; i++) {
1148                 if (content.rows[i].id.match(prefix) &&
1149                                 content.rows[i].className.match("Selected")) {
1150
1151                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1152                         sel_rows.push(row_id);
1153                 }
1154         }
1155
1156         return sel_rows;
1157
1158 }
1159
1160 function toggleSelectRowById(sender, id) {
1161         var row = document.getElementById(id);
1162
1163         if (sender.checked) {
1164                 if (!row.className.match("Selected")) {
1165                         row.className = row.className + "Selected";
1166                 }
1167         } else {
1168                 if (row.className.match("Selected")) {
1169                         row.className = row.className.replace("Selected", "");
1170                 }
1171         }
1172 }
1173
1174 function toggleSelectListRow(sender) {
1175         var parent_row = sender.parentNode;
1176
1177         if (sender.checked) {
1178                 if (!parent_row.className.match("Selected")) {
1179                         parent_row.className = parent_row.className + "Selected";
1180                 }
1181         } else {
1182                 if (parent_row.className.match("Selected")) {
1183                         parent_row.className = parent_row.className.replace("Selected", "");
1184                 }
1185         }
1186 }
1187
1188 function tSR(sender) {
1189         return toggleSelectRow(sender);
1190 }
1191
1192 function toggleSelectRow(sender) {
1193         var parent_row = sender.parentNode.parentNode;
1194
1195         if (sender.checked) {
1196                 if (!parent_row.className.match("Selected")) {
1197                         parent_row.className = parent_row.className + "Selected";
1198                 }
1199         } else {
1200                 if (parent_row.className.match("Selected")) {
1201                         parent_row.className = parent_row.className.replace("Selected", "");
1202                 }
1203         }
1204 }
1205
1206 function openExternalUrl(url) {
1207         var w = window.open(url);
1208 }
1209
1210 function getRelativeFeedId(list, id, direction, unread_only) {
1211         var rows = list.getElementsByTagName("LI");
1212         var feeds = new Array();
1213
1214         for (var i = 0; i < rows.length; i++) {
1215                 if (rows[i].id.match("FEEDR-")) {
1216
1217                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1218
1219                                 if (!unread_only ||
1220                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1221                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1222                                 }
1223                         }
1224                 }
1225         }
1226
1227         if (!id) {
1228                 if (direction == "next") {
1229                         return feeds.shift();
1230                 } else {
1231                         return feeds.pop();
1232                 }
1233         } else {
1234                 if (direction == "next") {
1235                         var idx = feeds.indexOf(id);
1236                         if (idx != -1 && idx < feeds.length) {
1237                                 return feeds[idx+1];
1238                         } else {
1239                                 return getRelativeFeedId(list, false, direction, unread_only);
1240                         }
1241                 } else {
1242                         var idx = feeds.indexOf(id);
1243                         if (idx > 0) {
1244                                 return feeds[idx-1];
1245                         } else {
1246                                 return getRelativeFeedId(list, false, direction, unread_only);
1247                         }
1248                 }
1249
1250         }
1251
1252 /*      if (!id) {
1253                 if (direction == "next") {
1254                         for (i = 0; i < list.childNodes.length; i++) {
1255                                 var child = list.childNodes[i];
1256                                 if (child.id && child.id == "feedCatHolder") {
1257                                         if (child.lastChild) {
1258                                                 var cr = getRelativeFeedId(child.firstChild, id, direction, unread_only);
1259                                                 if (cr) return cr;
1260                                         }
1261                                 } else if (child.id && child.id.match("FEEDR-")) {
1262                                         return child.id.replace('FEEDR-', '');
1263                                 }
1264                         }
1265                 }
1266
1267                 // FIXME select last feed doesn't work when only unread feeds are visible
1268
1269                 if (direction == "prev") {
1270                         for (i = list.childNodes.length-1; i >= 0; i--) {
1271                                 var child = list.childNodes[i];
1272                                 if (child.id == "feedCatHolder" && Element.visible(child)) {
1273                                         if (child.firstChild) {
1274                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
1275                                                 if (cr) return cr;
1276                                         }
1277                                 } else if (child.id.match("FEEDR-")) {
1278
1279                                         if (getInitParam("hide_read_feeds") == 1) {
1280                                                 if (child.className != "feed") {
1281 //                                                      alert(child.className);
1282                                                         return child.id.replace('FEEDR-', '');
1283                                                 }
1284                                         } else {
1285                                                         return child.id.replace('FEEDR-', '');
1286                                         }
1287                                 }
1288                         }
1289                 }
1290         } else {
1291
1292                 var feed = list.ownerDocument.getElementById("FEEDR-" + id);
1293
1294                 if (getInitParam("hide_read_feeds") == 1) {
1295                         unread_only = true;
1296                 }
1297
1298                 if (direction == "next") {
1299
1300                         var e = feed;
1301
1302                         while (e) {
1303
1304                                 if (e.nextSibling) {
1305
1306                                         e = e.nextSibling;
1307
1308                                 } else if (e.parentNode.parentNode.nextSibling) {
1309
1310                                         var this_cat = e.parentNode.parentNode;
1311
1312                                         e = false;
1313
1314                                         if (this_cat && this_cat.nextSibling) {
1315                                                 while (!e && this_cat.nextSibling) {
1316                                                         this_cat = this_cat.nextSibling;
1317                                                         if (this_cat.id == "feedCatHolder") {
1318                                                                 e = this_cat.firstChild.firstChild;
1319                                                         }
1320                                                 }
1321                                         }
1322
1323                                 } else {
1324                                         e = false;
1325                            }
1326
1327                                 if (e) {
1328                                         if (!unread_only || (unread_only && e.className != "feed" &&
1329                                                         e.className.match("feed")))     {
1330                                                 if (e.parentNode.parentNode &&
1331                                                         Element.visible(e.parentNode.parentNode)) {
1332                                                         return e.id.replace("FEEDR-", "");
1333                                                 }
1334                                         }
1335                                 }
1336                         }
1337
1338                 } else if (direction == "prev") {
1339
1340                         var e = feed;
1341
1342                         while (e) {
1343
1344                                 if (e.previousSibling) {
1345
1346                                         e = e.previousSibling;
1347
1348                                 } else if (e.parentNode.parentNode.previousSibling) {
1349
1350                                         var this_cat = e.parentNode.parentNode;
1351
1352                                         e = false;
1353
1354                                         if (this_cat && this_cat.previousSibling) {
1355                                                 while (!e && this_cat.previousSibling) {
1356                                                         this_cat = this_cat.previousSibling;
1357                                                         if (this_cat.id == "feedCatHolder") {
1358                                                                 e = this_cat.firstChild.lastChild;
1359                                                         }
1360                                                 }
1361                                         }
1362
1363                                 } else {
1364                                         e = false;
1365                            }
1366
1367                                 if (e) {
1368                                         if (!unread_only || (unread_only && e.className != "feed" &&
1369                                                         e.className.match("feed")))     {
1370                                                 if (e.parentNode.parentNode &&
1371                                                         Element.visible(e.parentNode.parentNode)) {
1372                                                         return e.id.replace("FEEDR-", "");
1373                                                 }
1374                                         }
1375                                 }
1376                         }
1377                 }
1378         } */
1379 }
1380
1381 function showBlockElement(id, h_id) {
1382         var elem = document.getElementById(id);
1383
1384         if (elem) {
1385                 elem.style.display = "block";
1386
1387                 if (h_id) {
1388                         elem = document.getElementById(h_id);
1389                         if (elem) {
1390                                 elem.style.display = "none";
1391                         }
1392                 }
1393         } else {
1394                 alert("[showBlockElement] can't find element with id " + id);
1395         }
1396 }
1397
1398 function appearBlockElement_afh(effect) {
1399
1400 }
1401
1402 function checkboxToggleElement(elem, id) {
1403         if (elem.checked) {
1404                 Effect.SlideDown(id, {duration : 1.0});
1405         } else {
1406                 Effect.SlideUp(id, {duration : 1.0});
1407         }
1408 }
1409
1410 function appearBlockElement(id, h_id) {
1411
1412         try {
1413                 Effect.Fade(h_id);
1414                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1415         } catch (e) {
1416                 exception_error("appearBlockElement", e);
1417         }
1418
1419 }
1420
1421
1422 function hideParentElement(e) {
1423         e.parentNode.style.display = "none";
1424 }
1425
1426 function dropboxSelect(e, v) {
1427         for (i = 0; i < e.length; i++) {
1428                 if (e[i].value == v) {
1429                         e.selectedIndex = i;
1430                         break;
1431                 }
1432         }
1433 }
1434
1435 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1436 // bugfixed just a little bit :-)
1437 function getURLParam(strParamName){
1438   var strReturn = "";
1439   var strHref = window.location.href;
1440
1441   if (strHref.indexOf("#") == strHref.length-1) {
1442                 strHref = strHref.substring(0, strHref.length-1);
1443   }
1444
1445   if ( strHref.indexOf("?") > -1 ){
1446     var strQueryString = strHref.substr(strHref.indexOf("?"));
1447     var aQueryString = strQueryString.split("&");
1448     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1449       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1450         var aParam = aQueryString[iParam].split("=");
1451         strReturn = aParam[1];
1452         break;
1453       }
1454     }
1455   }
1456   return strReturn;
1457 }
1458
1459 function leading_zero(p) {
1460         var s = String(p);
1461         if (s.length == 1) s = "0" + s;
1462         return s;
1463 }
1464
1465 function closeInfoBox(cleanup) {
1466
1467         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1468                 var overlay = document.getElementById("dialog_overlay");
1469                 if (overlay) {
1470                         overlay.style.display = "none";
1471                 }
1472         }
1473
1474         var box = document.getElementById('infoBox');
1475         var shadow = document.getElementById('infoBoxShadow');
1476
1477         if (shadow) {
1478                 shadow.style.display = "none";
1479         } else if (box) {
1480                 box.style.display = "none";
1481         }
1482
1483         if (cleanup) box.innerHTML = "&nbsp;";
1484
1485         enableHotkeys();
1486
1487         return false;
1488 }
1489
1490
1491 function displayDlg(id, param) {
1492
1493         if (!xmlhttp_ready(xmlhttp)) {
1494                 printLockingError();
1495                 return
1496         }
1497
1498         notify_progress("Loading, please wait...", true);
1499
1500         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1501                 param_escape(id) + "&param=" + param_escape(param), true);
1502         xmlhttp.onreadystatechange=infobox_callback;
1503         xmlhttp.send(null);
1504
1505         disableHotkeys();
1506
1507         return false;
1508 }
1509
1510 function infobox_submit_callback() {
1511         if (xmlhttp.readyState == 4) {
1512                 closeInfoBox();
1513
1514                 try {
1515                         // called from prefs, reload tab
1516                         if (active_tab) {
1517                                 selectTab(active_tab, false);
1518                         }
1519                 } catch (e) { }
1520
1521                 if (xmlhttp.responseText) {
1522                         notify_info(xmlhttp.responseText);
1523                 }
1524
1525         }
1526 }
1527
1528 function infobox_callback() {
1529         if (xmlhttp.readyState == 4) {
1530
1531                 try {
1532
1533                         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1534                                 var overlay = document.getElementById("dialog_overlay");
1535                                 if (overlay) {
1536                                         overlay.style.display = "block";
1537                                 }
1538                         }
1539
1540                         var box = document.getElementById('infoBox');
1541                         var shadow = document.getElementById('infoBoxShadow');
1542                         if (box) {
1543
1544                                 new Draggable(shadow);
1545
1546                                 box.innerHTML=xmlhttp.responseText;
1547                                 if (shadow) {
1548                                         shadow.style.display = "block";
1549                                 } else {
1550                                         box.style.display = "block";
1551                                 }
1552                         }
1553
1554                         /* FIXME this needs to be moved out somewhere */
1555
1556                         if (document.getElementById("tags_choices")) {
1557                                 new Ajax.Autocompleter('tags_str', 'tags_choices',
1558                                         "backend.php?op=rpc&subop=completeTags",
1559                                         { tokens: ',', paramName: "search" });
1560                         }
1561
1562                         notify("");
1563                 } catch (e) {
1564                         exception_error("infobox_callback", e);
1565                 }
1566         }
1567 }
1568
1569 function helpbox_callback() {
1570         if (xmlhttp.readyState == 4) {
1571                 var box = document.getElementById('helpBox');
1572                 var shadow = document.getElementById('helpBoxShadow');
1573                 if (box) {
1574                         box.innerHTML=xmlhttp.responseText;
1575                         if (shadow) {
1576                                 shadow.style.display = "block";
1577                         } else {
1578                                 box.style.display = "block";
1579                         }
1580                 }
1581                 notify("");
1582         }
1583 }
1584
1585 function addFilter() {
1586
1587         if (!xmlhttp_ready(xmlhttp)) {
1588                 printLockingError();
1589                 return
1590         }
1591
1592         var form = document.forms['filter_add_form'];
1593         var reg_exp = form.reg_exp.value;
1594
1595         if (reg_exp == "") {
1596                 alert(__("Can't add filter: nothing to match on."));
1597                 return false;
1598         }
1599
1600         var query = Form.serialize("filter_add_form");
1601
1602         xmlhttp.open("GET", "backend.php?" + query, true);
1603         xmlhttp.onreadystatechange=infobox_submit_callback;
1604         xmlhttp.send(null);
1605
1606         return true;
1607 }
1608
1609 function toggleSubmitNotEmpty(e, submit_id) {
1610         try {
1611                 document.getElementById(submit_id).disabled = (e.value == "")
1612         } catch (e) {
1613                 exception_error("toggleSubmitNotEmpty", e);
1614         }
1615 }
1616
1617 function isValidURL(s) {
1618         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1619 }
1620
1621 function qaddFeed() {
1622
1623         if (!xmlhttp_ready(xmlhttp)) {
1624                 printLockingError();
1625                 return
1626         }
1627
1628         var form = document.forms['feed_add_form'];
1629         var feed_url = form.feed_url.value;
1630
1631         if (feed_url == "") {
1632                 alert(__("Can't subscribe: no feed URL given."));
1633                 return false;
1634         }
1635
1636         notify_progress(__("Subscribing to feed..."), true);
1637
1638         closeInfoBox();
1639
1640         var feeds_doc = document;
1641
1642 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1643
1644         var query = Form.serialize("feed_add_form");
1645
1646         debug("subscribe q: " + query);
1647
1648 /*      xmlhttp.open("GET", "backend.php?" + query, true);
1649         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1650         xmlhttp.send(null); */
1651
1652         xmlhttp.open("POST", "backend.php", true);
1653         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1654         xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1655         xmlhttp.send(query);
1656
1657         return false;
1658 }
1659
1660 function filterCR(e, f)
1661 {
1662      var key;
1663
1664      if(window.event)
1665           key = window.event.keyCode;     //IE
1666      else
1667           key = e.which;     //firefox
1668
1669         if (key == 13) {
1670                 if (typeof f != 'undefined') {
1671                         f();
1672                         return false;
1673                 } else {
1674                         return false;
1675                 }
1676         } else {
1677                 return true;
1678         }
1679 }
1680
1681 function getMainContext() {
1682         return this.window;
1683 }
1684
1685 function getFeedsContext() {
1686         return this.window;
1687 }
1688
1689 function getContentContext() {
1690         return this.window;
1691 }
1692
1693 function getHeadlinesContext() {
1694         return this.window;
1695 }
1696
1697 var debug_last_class = "even";
1698
1699 function debug(msg) {
1700
1701         if (debug_last_class == "even") {
1702                 debug_last_class = "odd";
1703         } else {
1704                 debug_last_class = "even";
1705         }
1706
1707         var c = document.getElementById('debug_output');
1708         if (c && c.style.display == "block") {
1709                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1710                         c.removeChild(c.lastChild);
1711                 }
1712
1713                 var d = new Date();
1714                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1715                         ":" + leading_zero(d.getSeconds());
1716                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1717                         msg + "</li>" + c.innerHTML;
1718         }
1719 }
1720
1721 function getInitParam(key) {
1722         return init_params[key];
1723 }
1724
1725 function storeInitParam(key, value) {
1726         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1727         init_params[key] = value;
1728 }
1729
1730 function fatalError(code, message) {
1731         try {
1732
1733                 if (code == 6) {
1734                         window.location.href = "tt-rss.php";
1735                 } else if (code == 5) {
1736                         window.location.href = "update.php";
1737                 } else {
1738                         var fe = document.getElementById("fatal_error");
1739                         var fc = document.getElementById("fatal_error_msg");
1740
1741                         if (message == "") message = "Unknown error";
1742
1743                         fc.innerHTML = "<img src='images/sign_excl.png'> " + message + " (Code " + code + ")";
1744
1745                         fe.style.display = "block";
1746                 }
1747
1748         } catch (e) {
1749                 exception_error("fatalError", e);
1750         }
1751 }
1752
1753 function getFeedName(id, is_cat) {
1754         var d = getFeedsContext().document;
1755
1756         var e;
1757
1758         if (is_cat) {
1759                 e = d.getElementById("FCATN-" + id);
1760         } else {
1761                 e = d.getElementById("FEEDN-" + id);
1762         }
1763         if (e) {
1764                 return e.innerHTML.stripTags();
1765         } else {
1766                 return null;
1767         }
1768 }
1769
1770 function viewContentUrl(url) {
1771         getContentContext().location = url;
1772 }
1773
1774 function filterDlgCheckAction(sender) {
1775
1776         try {
1777
1778                 var action = sender[sender.selectedIndex].value;
1779
1780                 var form = document.forms["filter_add_form"];
1781
1782                 if (!form) {
1783                         form = document.forms["filter_edit_form"];
1784                 }
1785
1786                 if (!form) {
1787                         debug("filterDlgCheckAction: can't find form!");
1788                         return;
1789                 }
1790
1791                 var action_param = form.action_param;
1792
1793                 if (!action_param) {
1794                         debug("filterDlgCheckAction: can't find action param!");
1795                         return;
1796                 }
1797
1798                 // if selected action supports parameters, enable params field
1799                 if (action == 4) {
1800                         action_param.disabled = false;
1801                 } else {
1802                         action_param.disabled = true;
1803                 }
1804
1805         } catch (e) {
1806                 exception_error(e, "filterDlgCheckAction");
1807         }
1808
1809 }
1810
1811 function explainError(code) {
1812         return displayDlg("explainError", code);
1813 }
1814
1815 function logoutUser() {
1816         try {
1817                 if (xmlhttp_ready(xmlhttp_rpc)) {
1818
1819                         notify_progress("Logging out, please wait...", true);
1820
1821                         xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=logout", true);
1822                         xmlhttp_rpc.onreadystatechange=logout_callback;
1823                         xmlhttp_rpc.send(null);
1824                 } else {
1825                         printLockingError();
1826                 }
1827         } catch (e) {
1828                 exception_error("logoutUser", e);
1829         }
1830 }
1831
1832 // this only searches loaded headlines list, not in CDM
1833 function getRelativePostIds(id) {
1834
1835         debug("getRelativePostIds: " + id);
1836
1837         var ids = new Array();
1838         var container = document.getElementById("headlinesList");
1839
1840         if (container) {
1841                 var rows = container.rows;
1842
1843                 for (var i = 0; i < rows.length; i++) {
1844                         var r_id = rows[i].id.replace("RROW-", "");
1845
1846                         if (r_id == id) {
1847                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1848                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1849                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1850
1851                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1852                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1853                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1854
1855                                 return ids;
1856                         }
1857                 }
1858         }
1859
1860         return false;
1861 }
1862
1863 function openArticleInNewWindow(id) {
1864         try {
1865
1866                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1867                         printLockingError();
1868                         return
1869                 }
1870
1871                 debug("openArticleInNewWindow: " + id);
1872
1873                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1874
1875                 debug(query);
1876
1877                 xmlhttp_rpc.open("GET", query, true);
1878                 xmlhttp_rpc.onreadystatechange=open_article_callback;
1879                 xmlhttp_rpc.send(null);
1880
1881         } catch (e) {
1882                 exception_error("openArticleInNewWindow", e);
1883         }
1884 }
1885