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(transport) {
  68         try {
  69
  70                 if (transport.responseXML) {
  71                         var link = transport.responseXML.getElementsByTagName("link")[0];
  72                         var id = transport.responseXML.getElementsByTagName("id")[0];
  73
  74                         if (link) {
  75                                 window.open(link.firstChild.nodeValue, "_blank");
  76
  77                                 if (id) {
  78                                         id = id.firstChild.nodeValue;
  79                                         if (!document.getElementById("headlinesList")) {
  80                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  81                                         }
  82                                 }
  83                         }
  84                 }
  85
  86         } catch (e) {
  87                 exception_error("open_article_callback", e);
  88         }
  89 }
  90
  91 function param_escape(arg) {
  92         if (typeof encodeURIComponent != 'undefined')
  93                 return encodeURIComponent(arg);
  94         else
  95                 return escape(arg);
  96 }
  97
  98 function param_unescape(arg) {
  99         if (typeof decodeURIComponent != 'undefined')
 100                 return decodeURIComponent(arg);
 101         else
 102                 return unescape(arg);
 103 }
 104
 105 function delay(gap) {
 106         var then,now;
 107         then=new Date().getTime();
 108         now=then;
 109         while((now-then)<gap) {
 110                 now=new Date().getTime();
 111         }
 112 }
 113
 114 var notify_hide_timerid = false;
 115
 116 function hide_notify() {
 117         var n = document.getElementById("notify");
 118         if (n) {
 119                 n.style.display = "none";
 120         }
 121 }
 122
 123 function notify_real(msg, no_hide, n_type) {
 124
 125         var n = document.getElementById("notify");
 126         var nb = document.getElementById("notify_body");
 127
 128         if (!n || !nb) return;
 129
 130         if (notify_hide_timerid) {
 131                 window.clearTimeout(notify_hide_timerid);
 132         }
 133
 134         if (msg == "") {
 135                 if (n.style.display == "block") {
 136                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 137                 }
 138                 return;
 139         } else {
 140                 n.style.display = "block";
 141         }
 142
 143         /* types:
 144
 145                 1 - generic
 146                 2 - progress
 147                 3 - error
 148                 4 - info
 149
 150         */
 151
 152         if (typeof __ != 'undefined') {
 153                 msg = __(msg);
 154         }
 155
 156         if (n_type == 1) {
 157                 n.className = "notify";
 158         } else if (n_type == 2) {
 159                 n.className = "notifyProgress";
 160                 msg = "<img src='images/indicator_white.gif'> " + msg;
 161         } else if (n_type == 3) {
 162                 n.className = "notifyError";
 163                 msg = "<img src='images/sign_excl.gif'> " + msg;
 164         } else if (n_type == 4) {
 165                 n.className = "notifyInfo";
 166                 msg = "<img src='images/sign_info.gif'> " + msg;
 167         }
 168
 169 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 170
 171         nb.innerHTML = msg;
 172
 173         if (!no_hide) {
 174                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 175         }
 176 }
 177
 178 function notify(msg, no_hide) {
 179         notify_real(msg, no_hide, 1);
 180 }
 181
 182 function notify_progress(msg, no_hide) {
 183         notify_real(msg, no_hide, 2);
 184 }
 185
 186 function notify_error(msg, no_hide) {
 187         notify_real(msg, no_hide, 3);
 188
 189 }
 190
 191 function notify_info(msg, no_hide) {
 192         notify_real(msg, no_hide, 4);
 193 }
 194
 195 function printLockingError() {
 196         notify_info("Please wait until operation finishes.");
 197 }
 198
 199 function hotkey_handler(e) {
 200
 201         try {
 202
 203                 var keycode;
 204                 var shift_key = false;
 205
 206                 try {
 207                         shift_key = e.shiftKey;
 208                 } catch (e) {
 209
 210                 }
 211
 212                 if (!hotkeys_enabled) return;
 213
 214                 if (window.event) {
 215                         keycode = window.event.keyCode;
 216                 } else if (e) {
 217                         keycode = e.which;
 218                 }
 219
 220                 if (keycode == 82) { // r
 221                         return scheduleFeedUpdate(true);
 222                 }
 223
 224                 if (keycode == 83) { // s
 225                         return displayDlg("search", getActiveFeedId());
 226                 }
 227
 228                 if (keycode == 85) { // u
 229                         if (getActiveFeedId()) {
 230                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
 231                         }
 232                 }
 233
 234                 if (keycode == 65) { // a
 235                         return toggleDispRead();
 236                 }
 237
 238                 var feedlist = document.getElementById('feedList');
 239
 240                 if (keycode == 74) { // j
 241                         var feed = getActiveFeedId();
 242                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 243                         if (new_feed) viewfeed(new_feed, '');
 244                 }
 245
 246                 if (keycode == 75) { // k
 247                         var feed = getActiveFeedId();
 248                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 249                         if (new_feed) viewfeed(new_feed, '');
 250                 }
 251
 252                 if (keycode == 78 || keycode == 40) { // n, down
 253                         if (typeof moveToPost != 'undefined') {
 254                                 return moveToPost('next');
 255                         }
 256                 }
 257
 258                 if (keycode == 80 || keycode == 38) { // p, up
 259                         if (typeof moveToPost != 'undefined') {
 260                                 return moveToPost('prev');
 261                         }
 262                 }
 263
 264                 if (keycode == 68 && shift_key) { // d
 265                         if (!debug_mode_enabled) {
 266                                 document.getElementById('debug_output').style.display = 'block';
 267                                 debug('debug mode activated');
 268                         } else {
 269                                 document.getElementById('debug_output').style.display = 'none';
 270                         }
 271
 272                         debug_mode_enabled = !debug_mode_enabled;
 273                 }
 274
 275                 if (keycode == 190 && shift_key) { // >
 276                         viewFeedGoPage(1);
 277                 }
 278
 279                 if (keycode == 188 && shift_key) { // <
 280                         viewFeedGoPage(-1);
 281                 }
 282
 283                 if (keycode == 191 && shift_key) { // ?
 284                         viewFeedGoPage(0);
 285                 }
 286
 287                 if (keycode == 69 && shift_key) { // e
 288                         return editFeedDlg(getActiveFeedId());
 289                 }
 290
 291                 if (keycode == 70 && shift_key) { // f
 292                         if (getActiveFeedId()) {
 293                                 return catchupCurrentFeed();
 294                         }
 295                 }
 296
 297                 if (keycode == 80 && shift_key) { // p
 298                         if (getActiveFeedId()) {
 299                                 return catchupPage();
 300                         }
 301                 }
 302
 303                 if (keycode == 86) { // v
 304                         if (getActiveArticleId()) {
 305                                 openArticleInNewWindow(getActiveArticleId());
 306                         }
 307                 }
 308
 309                 if (keycode == 84) { // t
 310
 311                         var id = getActiveArticleId();
 312
 313                         if (id) {
 314
 315                                 var cb = document.getElementById("RCHK-" + id);
 316
 317                                 if (cb) {
 318                                         cb.checked = !cb.checked;
 319                                         toggleSelectRowById(cb, "RROW-" + id);
 320                                 }
 321                         }
 322                 }
 323
 324                 if (keycode == 67) { // c
 325                         var id = getActiveArticleId();
 326
 327                         if (id) {
 328                                 toggleUnread(id, 0);
 329                         }
 330                 }
 331
 332                 if (typeof localHotkeyHandler != 'undefined') {
 333                         try {
 334                                 return localHotkeyHandler(e);
 335                         } catch (e) {
 336                                 exception_error("hotkey_handler, local:", e);
 337                         }
 338                 }
 339
 340                 debug("KP=" + keycode);
 341         } catch (e) {
 342                 exception_error("hotkey_handler", e);
 343         }
 344 }
 345
 346 function cleanSelectedList(element) {
 347         var content = document.getElementById(element);
 348
 349         if (!document.getElementById("feedCatHolder")) {
 350                 for (i = 0; i < content.childNodes.length; i++) {
 351                         var child = content.childNodes[i];
 352                         try {
 353                                 child.className = child.className.replace("Selected", "");
 354                         } catch (e) {
 355                                 //
 356                         }
 357                 }
 358         } else {
 359                 for (i = 0; i < content.childNodes.length; i++) {
 360                         var child = content.childNodes[i];
 361                         if (child.id == "feedCatHolder") {
 362                                 debug(child.id);
 363                                 var fcat = child.lastChild;
 364                                 for (j = 0; j < fcat.childNodes.length; j++) {
 365                                         var feed = fcat.childNodes[j];
 366                                         feed.className = feed.className.replace("Selected", "");
 367                                 }
 368                         }
 369                 }
 370         }
 371 }
 372
 373
 374 function cleanSelected(element) {
 375         var content = document.getElementById(element);
 376
 377         for (i = 0; i < content.rows.length; i++) {
 378                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 379         }
 380 }
 381
 382 function getVisibleUnreadHeadlines() {
 383         var content = document.getElementById("headlinesList");
 384
 385         var rows = new Array();
 386
 387         for (i = 0; i < content.rows.length; i++) {
 388                 var row_id = content.rows[i].id.replace("RROW-", "");
 389                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 390                                 rows.push(row_id);
 391                 }
 392         }
 393         return rows;
 394 }
 395
 396 function getVisibleHeadlineIds() {
 397
 398         var content = document.getElementById("headlinesList");
 399
 400         var rows = new Array();
 401
 402         for (i = 0; i < content.rows.length; i++) {
 403                 var row_id = content.rows[i].id.replace("RROW-", "");
 404                 if (row_id.length > 0) {
 405                                 rows.push(row_id);
 406                 }
 407         }
 408         return rows;
 409 }
 410
 411 function getFirstVisibleHeadlineId() {
 412         var rows = getVisibleHeadlineIds();
 413         return rows[0];
 414 }
 415
 416 function getLastVisibleHeadlineId() {
 417         var rows = getVisibleHeadlineIds();
 418         return rows[rows.length-1];
 419 }
 420
 421 function markHeadline(id) {
 422         var row = document.getElementById("RROW-" + id);
 423         if (row) {
 424                 var is_active = false;
 425
 426                 if (row.className.match("Active")) {
 427                         is_active = true;
 428                 }
 429                 row.className = row.className.replace("Selected", "");
 430                 row.className = row.className.replace("Active", "");
 431                 row.className = row.className.replace("Insensitive", "");
 432
 433                 if (is_active) {
 434                         row.className = row.className = "Active";
 435                 }
 436
 437                 var check = document.getElementById("RCHK-" + id);
 438
 439                 if (check) {
 440                         check.checked = true;
 441                 }
 442
 443                 row.className = row.className + "Selected";
 444
 445         }
 446 }
 447
 448 function getFeedIds() {
 449         var content = document.getElementById("feedsList");
 450
 451         var rows = new Array();
 452
 453         for (i = 0; i < content.rows.length; i++) {
 454                 var id = content.rows[i].id.replace("FEEDR-", "");
 455                 if (id.length > 0) {
 456                         rows.push(id);
 457                 }
 458         }
 459
 460         return rows;
 461 }
 462
 463 function setCookie(name, value, lifetime, path, domain, secure) {
 464
 465         var d = false;
 466
 467         if (lifetime) {
 468                 d = new Date();
 469                 d.setTime(d.getTime() + (lifetime * 1000));
 470         }
 471
 472         debug("setCookie: " + name + " => " + value + ": " + d);
 473
 474         int_setCookie(name, value, d, path, domain, secure);
 475
 476 }
 477
 478 function int_setCookie(name, value, expires, path, domain, secure) {
 479         document.cookie= name + "=" + escape(value) +
 480                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 481                 ((path) ? "; path=" + path : "") +
 482                 ((domain) ? "; domain=" + domain : "") +
 483                 ((secure) ? "; secure" : "");
 484 }
 485
 486 function delCookie(name, path, domain) {
 487         if (getCookie(name)) {
 488                 document.cookie = name + "=" +
 489                 ((path) ? ";path=" + path : "") +
 490                 ((domain) ? ";domain=" + domain : "" ) +
 491                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 492         }
 493 }
 494
 495
 496 function getCookie(name) {
 497
 498         var dc = document.cookie;
 499         var prefix = name + "=";
 500         var begin = dc.indexOf("; " + prefix);
 501         if (begin == -1) {
 502             begin = dc.indexOf(prefix);
 503             if (begin != 0) return null;
 504         }
 505         else {
 506             begin += 2;
 507         }
 508         var end = document.cookie.indexOf(";", begin);
 509         if (end == -1) {
 510             end = dc.length;
 511         }
 512         return unescape(dc.substring(begin + prefix.length, end));
 513 }
 514
 515 function disableContainerChildren(id, disable, doc) {
 516
 517         if (!doc) doc = document;
 518
 519         var container = doc.getElementById(id);
 520
 521         if (!container) {
 522                 //alert("disableContainerChildren: element " + id + " not found");
 523                 return;
 524         }
 525
 526         for (var i = 0; i < container.childNodes.length; i++) {
 527                 var child = container.childNodes[i];
 528
 529                 try {
 530                         child.disabled = disable;
 531                 } catch (E) {
 532
 533                 }
 534
 535                 if (disable) {
 536                         if (child.className && child.className.match("button")) {
 537                                 child.className = "disabledButton";
 538                         }
 539                 } else {
 540                         if (child.className && child.className.match("disabledButton")) {
 541                                 child.className = "button";
 542                         }
 543                 }
 544         }
 545
 546 }
 547
 548 function gotoPreferences() {
 549         document.location.href = "prefs.php";
 550 }
 551
 552 function gotoMain() {
 553         document.location.href = "tt-rss.php";
 554 }
 555
 556 function gotoExportOpml() {
 557         document.location.href = "opml.php?op=Export";
 558 }
 559
 560 function getActiveFeedId() {
 561 //      return getCookie("ttrss_vf_actfeed");
 562         try {
 563                 debug("gAFID: " + active_feed_id);
 564                 return active_feed_id;
 565         } catch (e) {
 566                 exception_error("getActiveFeedId", e);
 567         }
 568 }
 569
 570 function activeFeedIsCat() {
 571         return active_feed_is_cat;
 572 }
 573
 574 function setActiveFeedId(id) {
 575 //      return setCookie("ttrss_vf_actfeed", id);
 576         try {
 577                 debug("sAFID(" + id + ")");
 578                 active_feed_id = id;
 579         } catch (e) {
 580                 exception_error("setActiveFeedId", e);
 581         }
 582 }
 583
 584 function parse_counters(reply, scheduled_call) {
 585         try {
 586
 587                 var feeds_found = 0;
 588
 589                 var elems = reply.getElementsByTagName("counter");
 590
 591                 for (var l = 0; l < elems.length; l++) {
 592
 593                         var id = elems[l].getAttribute("id");
 594                         var t = elems[l].getAttribute("type");
 595                         var ctr = elems[l].getAttribute("counter");
 596                         var error = elems[l].getAttribute("error");
 597                         var has_img = elems[l].getAttribute("hi");
 598                         var updated = elems[l].getAttribute("updated");
 599                         var title = elems[l].getAttribute("title");
 600
 601                         if (id == "global-unread") {
 602                                 global_unread = ctr;
 603                                 updateTitle();
 604                                 continue;
 605                         }
 606
 607                         if (id == "subscribed-feeds") {
 608                                 feeds_found = ctr;
 609                                 continue;
 610                         }
 611
 612                         if (t == "category") {
 613                                 var catctr = document.getElementById("FCATCTR-" + id);
 614                                 if (catctr) {
 615                                         catctr.innerHTML = "(" + ctr + ")";
 616                                         if (ctr > 0) {
 617                                                 catctr.className = "catCtrHasUnread";
 618                                         } else {
 619                                                 catctr.className = "catCtrNoUnread";
 620                                         }
 621                                 }
 622                                 continue;
 623                         }
 624
 625                         var feedctr = document.getElementById("FEEDCTR-" + id);
 626                         var feedu = document.getElementById("FEEDU-" + id);
 627                         var feedr = document.getElementById("FEEDR-" + id);
 628                         var feed_img = document.getElementById("FIMG-" + id);
 629                         var feedlink = document.getElementById("FEEDL-" + id);
 630                         var feedupd = document.getElementById("FLUPD-" + id);
 631
 632                         if (updated && feedlink) {
 633                                 if (error) {
 634                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 635                                 } else {
 636                                         feedlink.title = "Updated: " + updated;
 637                                 }
 638                         }
 639
 640                         if (updated && feedupd) {
 641                                 if (error) {
 642                                         feedupd.innerHTML = updated + " (Error)";
 643                                 } else {
 644                                         feedupd.innerHTML = updated;
 645                                 }
 646                         }
 647
 648                         if (has_img && feed_img && !is_msie()) {
 649                                 if (!feed_img.src.match(id + ".ico")) {
 650                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 651                                 }
 652                         }
 653
 654                         if (feedlink && title) {
 655                                 feedlink.innerHTML = title;
 656                         }
 657
 658                         if (feedctr && feedu && feedr) {
 659
 660                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 661                                         viewCurrentFeed();
 662                                 }
 663
 664                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 665
 666                                 feedu.innerHTML = ctr;
 667
 668                                 if (error) {
 669                                         feedr.className = feedr.className.replace("feed", "error");
 670                                 } else if (id > 0) {
 671                                         feedr.className = feedr.className.replace("error", "feed");
 672                                 }
 673
 674                                 if (ctr > 0) {
 675                                         feedctr.className = "odd";
 676                                         if (!feedr.className.match("Unread")) {
 677                                                 var is_selected = feedr.className.match("Selected");
 678
 679                                                 feedr.className = feedr.className.replace("Selected", "");
 680                                                 feedr.className = feedr.className.replace("Unread", "");
 681
 682                                                 feedr.className = feedr.className + "Unread";
 683
 684                                                 if (is_selected) {
 685                                                         feedr.className = feedr.className + "Selected";
 686                                                 }
 687
 688                                         }
 689
 690                                         if (row_needs_hl) {
 691                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 692                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 693                                         }
 694                                 } else {
 695                                         feedctr.className = "invisible";
 696                                         feedr.className = feedr.className.replace("Unread", "");
 697                                 }
 698                         }
 699                 }
 700
 701                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 702
 703                 var feeds_stored = number_of_feeds;
 704
 705                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 706
 707                 if (feeds_stored != feeds_found) {
 708                         number_of_feeds = feeds_found;
 709
 710                         if (feeds_stored != 0 && feeds_found != 0) {
 711                                 debug("Subscribed feed number changed, refreshing feedlist");
 712                                 setTimeout('updateFeedList(false, false)', 50);
 713                         }
 714                 }
 715
 716         } catch (e) {
 717                 exception_error("parse_counters", e);
 718         }
 719 }
 720
 721 function parse_counters_reply(transport, scheduled_call) {
 722
 723         if (!transport.responseXML) {
 724                 notify_error("Backend did not return valid XML", true);
 725                 return;
 726         }
 727
 728         var reply = transport.responseXML.firstChild;
 729
 730         if (!reply) {
 731                 notify_error("Backend did not return expected XML object", true);
 732                 updateTitle("");
 733                 return;
 734         }
 735
 736         var error_code = false;
 737         var error_msg = false;
 738
 739         if (reply.firstChild) {
 740                 error_code = reply.firstChild.getAttribute("error-code");
 741                 error_msg = reply.firstChild.getAttribute("error-msg");
 742         }
 743
 744         if (!error_code) {
 745                 error_code = reply.getAttribute("error-code");
 746                 error_msg = reply.getAttribute("error-msg");
 747         }
 748
 749         if (error_code && error_code != 0) {
 750                 debug("refetch_callback: got error code " + error_code);
 751                 return fatalError(error_code, error_msg);
 752         }
 753
 754         var counters = reply.getElementsByTagName("counters")[0];
 755
 756         parse_counters(counters, scheduled_call);
 757
 758         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 759
 760         parse_runtime_info(runtime_info);
 761
 762         if (getInitParam("feeds_sort_by_unread") == 1) {
 763                         resort_feedlist();
 764         }
 765
 766         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 767
 768 }
 769
 770 function all_counters_callback2(transport) {
 771         try {
 772                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 773                 parse_counters_reply(transport);
 774                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 775
 776         } catch (e) {
 777                 exception_error("all_counters_callback2", e);
 778         }
 779 }
 780
 781 function get_feed_entry_unread(doc, elem) {
 782
 783         var id = elem.id.replace("FEEDR-", "");
 784
 785         if (id <= 0) {
 786                 return -1;
 787         }
 788
 789         try {
 790                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 791         } catch (e) {
 792                 return -1;
 793         }
 794 }
 795
 796 function resort_category(doc, node) {
 797         debug("resort_category: " + node);
 798
 799         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 800                 for (i = 0; i < node.childNodes.length; i++) {
 801                         if (node.childNodes[i].nodeName != "LI") { continue; }
 802
 803                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 804                                 continue;
 805                         }
 806
 807                         for (j = i+1; j < node.childNodes.length; j++) {
 808                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 809
 810                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 811                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 812
 813                                 if (cur_val > tmp_val) {
 814                                         tempnode_i = node.childNodes[i].cloneNode(true);
 815                                         tempnode_j = node.childNodes[j].cloneNode(true);
 816                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 817                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 818                                 }
 819                         }
 820
 821                 }
 822         }
 823
 824 }
 825
 826 function resort_feedlist() {
 827         debug("resort_feedlist");
 828
 829         var fd = document;
 830
 831         if (fd.getElementById("feedCatHolder")) {
 832
 833                 var feeds = fd.getElementById("feedList");
 834                 var child = feeds.firstChild;
 835
 836                 while (child) {
 837
 838                         if (child.id == "feedCatHolder") {
 839                                 resort_category(fd, child.firstChild);
 840                         }
 841
 842                         child = child.nextSibling;
 843                 }
 844
 845         } else {
 846                 resort_category(fd, fd.getElementById("feedList"));
 847         }
 848 }
 849
 850 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 851   * * @author Sundar Dorai-Raj
 852   * * Email: sdoraira@vt.edu
 853   * * This program is free software; you can redistribute it and/or
 854   * * modify it under the terms of the GNU General Public License
 855   * * as published by the Free Software Foundation; either version 2
 856   * * of the License, or (at your option) any later version,
 857   * * provided that any use properly credits the author.
 858   * * This program is distributed in the hope that it will be useful,
 859   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 860   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 861   * * GNU General Public License for more details at http://www.gnu.org * * */
 862
 863   var numbers=".0123456789";
 864   function isNumeric(x) {
 865     // is x a String or a character?
 866     if(x.length>1) {
 867       // remove negative sign
 868       x=Math.abs(x)+"";
 869       for(j=0;j<x.length;j++) {
 870         // call isNumeric recursively for each character
 871         number=isNumeric(x.substring(j,j+1));
 872         if(!number) return number;
 873       }
 874       return number;
 875     }
 876     else {
 877       // if x is number return true
 878       if(numbers.indexOf(x)>=0) return true;
 879       return false;
 880     }
 881   }
 882
 883
 884 function hideOrShowFeeds(doc, hide) {
 885
 886         debug("hideOrShowFeeds: " + doc + ", " + hide);
 887
 888         var fd = document;
 889
 890         var list = fd.getElementById("feedList");
 891
 892         if (fd.getElementById("feedCatHolder")) {
 893
 894                 var feeds = fd.getElementById("feedList");
 895                 var child = feeds.firstChild;
 896
 897                 while (child) {
 898
 899                         if (child.id == "feedCatHolder") {
 900                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 901                         }
 902
 903                         child = child.nextSibling;
 904                 }
 905
 906         } else {
 907                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 908         }
 909 }
 910
 911 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 912
 913 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 914
 915         var cat_unread = 0;
 916
 917         if (!node) {
 918                 debug("hideOrShowFeeds: passed node is null, aborting");
 919                 return;
 920         }
 921
 922         debug("cat: " + node.id);
 923
 924         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 925                 for (i = 0; i < node.childNodes.length; i++) {
 926                         if (node.childNodes[i].nodeName != "LI") { continue; }
 927
 928                         if (node.childNodes[i].style != undefined) {
 929
 930                                 var has_unread = (node.childNodes[i].className != "feed" &&
 931                                         node.childNodes[i].className != "label" &&
 932                                         node.childNodes[i].className != "virt" &&
 933                                         node.childNodes[i].className != "error" &&
 934                                         node.childNodes[i].className != "tag");
 935
 936 //                              debug(node.childNodes[i].id + " --> " + has_unread);
 937
 938                                 if (hide && !has_unread) {
 939                                         //node.childNodes[i].style.display = "none";
 940                                         var id = node.childNodes[i].id;
 941                                         Effect.Fade(node.childNodes[i], {duration : 0.3,
 942                                                 queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 943                                 }
 944
 945                                 if (!hide) {
 946                                         node.childNodes[i].style.display = "list-item";
 947                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 948                                 }
 949
 950                                 if (has_unread) {
 951                                         node.childNodes[i].style.display = "list-item";
 952                                         cat_unread++;
 953                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 954                                         //Effect.Highlight(node.childNodes[i]);
 955                                 }
 956                         }
 957                 }
 958         }
 959
 960         debug("end cat: " + node.id + " unread " + cat_unread);
 961
 962         if (cat_unread == 0) {
 963                 if (cat_node.style == undefined) {
 964                         debug("ERROR: supplied cat_node " + cat_node +
 965                                 " has no styles. WTF?");
 966                         return;
 967                 }
 968                 if (hide) {
 969                         //cat_node.style.display = "none";
 970                         Effect.Fade(cat_node, {duration : 0.3,
 971                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 972                 } else {
 973                         cat_node.style.display = "list-item";
 974                 }
 975         } else {
 976                 try {
 977                         cat_node.style.display = "list-item";
 978                 } catch (e) {
 979                         debug(e);
 980                 }
 981         }
 982
 983 //      debug("unread for category: " + cat_unread);
 984 }
 985
 986 function selectTableRow(r, do_select) {
 987         r.className = r.className.replace("Selected", "");
 988
 989         if (do_select) {
 990                 r.className = r.className + "Selected";
 991         }
 992 }
 993
 994 function selectTableRowById(elem_id, check_id, do_select) {
 995
 996         try {
 997
 998                 var row = document.getElementById(elem_id);
 999
1000                 if (row) {
1001                         selectTableRow(row, do_select);
1002                 }
1003
1004                 var check = document.getElementById(check_id);
1005
1006                 if (check) {
1007                         check.checked = do_select;
1008                 }
1009         } catch (e) {
1010                 exception_error("selectTableRowById", e);
1011         }
1012 }
1013
1014 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1015         classcheck, reset_others) {
1016
1017         var content = document.getElementById(content_id);
1018
1019         if (!content) {
1020                 alert("[selectTableRows] Element " + content_id + " not found.");
1021                 return;
1022         }
1023
1024         for (i = 0; i < content.rows.length; i++) {
1025                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1026
1027                         if (content.rows[i].id.match(prefix)) {
1028                                 selectTableRow(content.rows[i], do_select);
1029
1030                                 var row_id = content.rows[i].id.replace(prefix, "");
1031                                 var check = document.getElementById(check_prefix + row_id);
1032
1033                                 if (check) {
1034                                         check.checked = do_select;
1035                                 }
1036                         } else if (reset_others) {
1037                                 selectTableRow(content.rows[i], false);
1038
1039                                 var row_id = content.rows[i].id.replace(prefix, "");
1040                                 var check = document.getElementById(check_prefix + row_id);
1041
1042                                 if (check) {
1043                                         check.checked = false;
1044                                 }
1045
1046                         }
1047                 } else if (reset_others) {
1048                         selectTableRow(content.rows[i], false);
1049
1050                         var row_id = content.rows[i].id.replace(prefix, "");
1051                         var check = document.getElementById(check_prefix + row_id);
1052
1053                         if (check) {
1054                                 check.checked = false;
1055                         }
1056
1057                 }
1058         }
1059 }
1060
1061 function getSelectedTableRowIds(content_id, prefix) {
1062
1063         var content = document.getElementById(content_id);
1064
1065         if (!content) {
1066                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1067                 return;
1068         }
1069
1070         var sel_rows = new Array();
1071
1072         for (i = 0; i < content.rows.length; i++) {
1073                 if (content.rows[i].id.match(prefix) &&
1074                                 content.rows[i].className.match("Selected")) {
1075
1076                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1077                         sel_rows.push(row_id);
1078                 }
1079         }
1080
1081         return sel_rows;
1082
1083 }
1084
1085 function toggleSelectRowById(sender, id) {
1086         var row = document.getElementById(id);
1087
1088         if (sender.checked) {
1089                 if (!row.className.match("Selected")) {
1090                         row.className = row.className + "Selected";
1091                 }
1092         } else {
1093                 if (row.className.match("Selected")) {
1094                         row.className = row.className.replace("Selected", "");
1095                 }
1096         }
1097 }
1098
1099 function toggleSelectListRow(sender) {
1100         var parent_row = sender.parentNode;
1101
1102         if (sender.checked) {
1103                 if (!parent_row.className.match("Selected")) {
1104                         parent_row.className = parent_row.className + "Selected";
1105                 }
1106         } else {
1107                 if (parent_row.className.match("Selected")) {
1108                         parent_row.className = parent_row.className.replace("Selected", "");
1109                 }
1110         }
1111 }
1112
1113 function tSR(sender) {
1114         return toggleSelectRow(sender);
1115 }
1116
1117 function toggleSelectRow(sender) {
1118         var parent_row = sender.parentNode.parentNode;
1119
1120         if (sender.checked) {
1121                 if (!parent_row.className.match("Selected")) {
1122                         parent_row.className = parent_row.className + "Selected";
1123                 }
1124         } else {
1125                 if (parent_row.className.match("Selected")) {
1126                         parent_row.className = parent_row.className.replace("Selected", "");
1127                 }
1128         }
1129 }
1130
1131 function getRelativeFeedId(list, id, direction, unread_only) {
1132         var rows = list.getElementsByTagName("LI");
1133         var feeds = new Array();
1134
1135         for (var i = 0; i < rows.length; i++) {
1136                 if (rows[i].id.match("FEEDR-")) {
1137
1138                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1139
1140                                 if (!unread_only ||
1141                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1142                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1143                                 }
1144                         }
1145                 }
1146         }
1147
1148         if (!id) {
1149                 if (direction == "next") {
1150                         return feeds.shift();
1151                 } else {
1152                         return feeds.pop();
1153                 }
1154         } else {
1155                 if (direction == "next") {
1156                         var idx = feeds.indexOf(id);
1157                         if (idx != -1 && idx < feeds.length) {
1158                                 return feeds[idx+1];
1159                         } else {
1160                                 return getRelativeFeedId(list, false, direction, unread_only);
1161                         }
1162                 } else {
1163                         var idx = feeds.indexOf(id);
1164                         if (idx > 0) {
1165                                 return feeds[idx-1];
1166                         } else {
1167                                 return getRelativeFeedId(list, false, direction, unread_only);
1168                         }
1169                 }
1170
1171         }
1172 }
1173
1174 function showBlockElement(id, h_id) {
1175         var elem = document.getElementById(id);
1176
1177         if (elem) {
1178                 elem.style.display = "block";
1179
1180                 if (h_id) {
1181                         elem = document.getElementById(h_id);
1182                         if (elem) {
1183                                 elem.style.display = "none";
1184                         }
1185                 }
1186         } else {
1187                 alert("[showBlockElement] can't find element with id " + id);
1188         }
1189 }
1190
1191 function appearBlockElement_afh(effect) {
1192
1193 }
1194
1195 function checkboxToggleElement(elem, id) {
1196         if (elem.checked) {
1197                 Effect.SlideDown(id, {duration : 0.5});
1198         } else {
1199                 Effect.SlideUp(id, {duration : 0.5});
1200         }
1201 }
1202
1203 function appearBlockElement(id, h_id) {
1204
1205         try {
1206                 if (h_id) {
1207                         Effect.Fade(h_id);
1208                 }
1209                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1210         } catch (e) {
1211                 exception_error("appearBlockElement", e);
1212         }
1213
1214 }
1215
1216 function hideParentElement(e) {
1217         e.parentNode.style.display = "none";
1218 }
1219
1220 function dropboxSelect(e, v) {
1221         for (i = 0; i < e.length; i++) {
1222                 if (e[i].value == v) {
1223                         e.selectedIndex = i;
1224                         break;
1225                 }
1226         }
1227 }
1228
1229 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1230 // bugfixed just a little bit :-)
1231 function getURLParam(strParamName){
1232   var strReturn = "";
1233   var strHref = window.location.href;
1234
1235   if (strHref.indexOf("#") == strHref.length-1) {
1236                 strHref = strHref.substring(0, strHref.length-1);
1237   }
1238
1239   if ( strHref.indexOf("?") > -1 ){
1240     var strQueryString = strHref.substr(strHref.indexOf("?"));
1241     var aQueryString = strQueryString.split("&");
1242     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1243       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1244         var aParam = aQueryString[iParam].split("=");
1245         strReturn = aParam[1];
1246         break;
1247       }
1248     }
1249   }
1250   return strReturn;
1251 }
1252
1253 function leading_zero(p) {
1254         var s = String(p);
1255         if (s.length == 1) s = "0" + s;
1256         return s;
1257 }
1258
1259 function closeInfoBox(cleanup) {
1260
1261         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1262                 var overlay = document.getElementById("dialog_overlay");
1263                 if (overlay) {
1264                         overlay.style.display = "none";
1265                 }
1266         }
1267
1268         var box = document.getElementById('infoBox');
1269         var shadow = document.getElementById('infoBoxShadow');
1270
1271         if (shadow) {
1272                 shadow.style.display = "none";
1273         } else if (box) {
1274                 box.style.display = "none";
1275         }
1276
1277         if (cleanup) box.innerHTML = "&nbsp;";
1278
1279         enableHotkeys();
1280
1281         return false;
1282 }
1283
1284
1285 function displayDlg(id, param) {
1286
1287         notify_progress("Loading, please wait...", true);
1288
1289         disableHotkeys();
1290
1291         var query = "backend.php?op=dlg&id=" +
1292                 param_escape(id) + "&param=" + param_escape(param);
1293
1294         new Ajax.Request(query, {
1295                 onComplete: function (transport) {
1296                         infobox_callback2(transport);
1297                 } });
1298
1299         return false;
1300 }
1301
1302 function infobox_submit_callback2(transport) {
1303         closeInfoBox();
1304
1305         try {
1306                 // called from prefs, reload tab
1307                 if (active_tab) {
1308                         selectTab(active_tab, false);
1309                 }
1310         } catch (e) { }
1311
1312         if (transport.responseText) {
1313                 notify_info(transport.responseText);
1314         }
1315 }
1316
1317 function infobox_callback2(transport) {
1318         try {
1319
1320                 debug("infobox_callback2");
1321
1322                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1323                         var overlay = document.getElementById("dialog_overlay");
1324                         if (overlay) {
1325                                 overlay.style.display = "block";
1326                         }
1327                 }
1328
1329                 var box = document.getElementById('infoBox');
1330                 var shadow = document.getElementById('infoBoxShadow');
1331                 if (box) {
1332
1333 /*                              if (!is_safari()) {
1334                                 new Draggable(shadow);
1335                         } */
1336
1337                         box.innerHTML=transport.responseText;
1338                         if (shadow) {
1339                                 shadow.style.display = "block";
1340                         } else {
1341                                 box.style.display = "block";
1342                         }
1343                 }
1344
1345                 /* FIXME this needs to be moved out somewhere */
1346
1347                 if (document.getElementById("tags_choices")) {
1348                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1349                                 "backend.php?op=rpc&subop=completeTags",
1350                                 { tokens: ',', paramName: "search" });
1351                 }
1352
1353                 notify("");
1354         } catch (e) {
1355                 exception_error("infobox_callback2", e);
1356         }
1357 }
1358
1359 function createFilter() {
1360
1361         var form = document.forms['filter_add_form'];
1362         var reg_exp = form.reg_exp.value;
1363
1364         if (reg_exp == "") {
1365                 alert(__("Can't add filter: nothing to match on."));
1366                 return false;
1367         }
1368
1369         var query = Form.serialize("filter_add_form");
1370
1371         new Ajax.Request("backend.php?" + query, {
1372                 onComplete: function (transport) {
1373                         infobox_submit_callback2(transport);
1374                 } });
1375
1376         return true;
1377 }
1378
1379 function toggleSubmitNotEmpty(e, submit_id) {
1380         try {
1381                 document.getElementById(submit_id).disabled = (e.value == "")
1382         } catch (e) {
1383                 exception_error("toggleSubmitNotEmpty", e);
1384         }
1385 }
1386
1387 function isValidURL(s) {
1388         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1389 }
1390
1391 function subscribeToFeed() {
1392
1393         var form = document.forms['feed_add_form'];
1394         var feed_url = form.feed_url.value;
1395
1396         if (feed_url == "") {
1397                 alert(__("Can't subscribe: no feed URL given."));
1398                 return false;
1399         }
1400
1401         notify_progress(__("Subscribing to feed..."), true);
1402
1403         closeInfoBox();
1404
1405         var feeds_doc = document;
1406
1407 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1408
1409         var query = Form.serialize("feed_add_form");
1410
1411         debug("subscribe q: " + query);
1412
1413         new Ajax.Request("backend.php", {
1414                 parameters: query,
1415                 onComplete: function(transport) {
1416                         dlg_frefresh_callback(transport);
1417                 } });
1418
1419         return false;
1420 }
1421
1422 function filterCR(e, f)
1423 {
1424      var key;
1425
1426      if(window.event)
1427           key = window.event.keyCode;     //IE
1428      else
1429           key = e.which;     //firefox
1430
1431         if (key == 13) {
1432                 if (typeof f != 'undefined') {
1433                         f();
1434                         return false;
1435                 } else {
1436                         return false;
1437                 }
1438         } else {
1439                 return true;
1440         }
1441 }
1442
1443 function getMainContext() {
1444         return this.window;
1445 }
1446
1447 function getFeedsContext() {
1448         return this.window;
1449 }
1450
1451 function getContentContext() {
1452         return this.window;
1453 }
1454
1455 function getHeadlinesContext() {
1456         return this.window;
1457 }
1458
1459 var debug_last_class = "even";
1460
1461 function debug(msg) {
1462
1463         if (debug_last_class == "even") {
1464                 debug_last_class = "odd";
1465         } else {
1466                 debug_last_class = "even";
1467         }
1468
1469         var c = document.getElementById('debug_output');
1470         if (c && c.style.display == "block") {
1471                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1472                         c.removeChild(c.lastChild);
1473                 }
1474
1475                 var d = new Date();
1476                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1477                         ":" + leading_zero(d.getSeconds());
1478                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1479                         msg + "</li>" + c.innerHTML;
1480         }
1481 }
1482
1483 function getInitParam(key) {
1484         return init_params[key];
1485 }
1486
1487 function storeInitParam(key, value) {
1488         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1489         init_params[key] = value;
1490 }
1491
1492 function fatalError(code, message) {
1493         try {
1494
1495                 if (code == 6) {
1496                         window.location.href = "tt-rss.php";
1497                 } else if (code == 5) {
1498                         window.location.href = "update.php";
1499                 } else {
1500                         var fe = document.getElementById("fatal_error");
1501                         var fc = document.getElementById("fatal_error_msg");
1502
1503                         if (message == "") message = "Unknown error";
1504
1505                         fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
1506
1507                         fe.style.display = "block";
1508                 }
1509
1510         } catch (e) {
1511                 exception_error("fatalError", e);
1512         }
1513 }
1514
1515 function getFeedName(id, is_cat) {
1516         var d = getFeedsContext().document;
1517
1518         var e;
1519
1520         if (is_cat) {
1521                 e = d.getElementById("FCATN-" + id);
1522         } else {
1523                 e = d.getElementById("FEEDN-" + id);
1524         }
1525         if (e) {
1526                 return e.innerHTML.stripTags();
1527         } else {
1528                 return null;
1529         }
1530 }
1531
1532 function viewContentUrl(url) {
1533         getContentContext().location = url;
1534 }
1535
1536 function filterDlgCheckAction(sender) {
1537
1538         try {
1539
1540                 var action = sender[sender.selectedIndex].value;
1541
1542                 var form = document.forms["filter_add_form"];
1543
1544                 if (!form) {
1545                         form = document.forms["filter_edit_form"];
1546                 }
1547
1548                 if (!form) {
1549                         debug("filterDlgCheckAction: can't find form!");
1550                         return;
1551                 }
1552
1553                 var action_param = form.action_param;
1554
1555                 if (!action_param) {
1556                         debug("filterDlgCheckAction: can't find action param!");
1557                         return;
1558                 }
1559
1560                 // if selected action supports parameters, enable params field
1561                 if (action == 4) {
1562                         action_param.disabled = false;
1563                 } else {
1564                         action_param.disabled = true;
1565                 }
1566
1567         } catch (e) {
1568                 exception_error(e, "filterDlgCheckAction");
1569         }
1570
1571 }
1572
1573 function explainError(code) {
1574         return displayDlg("explainError", code);
1575 }
1576
1577 // this only searches loaded headlines list, not in CDM
1578 function getRelativePostIds(id) {
1579
1580         debug("getRelativePostIds: " + id);
1581
1582         var ids = new Array();
1583         var container = document.getElementById("headlinesList");
1584
1585         if (container) {
1586                 var rows = container.rows;
1587
1588                 for (var i = 0; i < rows.length; i++) {
1589                         var r_id = rows[i].id.replace("RROW-", "");
1590
1591                         if (r_id == id) {
1592                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1593                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1594                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1595
1596                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1597                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1598                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1599
1600                                 return ids;
1601                         }
1602                 }
1603         }
1604
1605         return false;
1606 }
1607
1608 function openArticleInNewWindow(id) {
1609         try {
1610                 debug("openArticleInNewWindow: " + id);
1611
1612                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1613
1614                 debug(query);
1615
1616                 new Ajax.Request(query, {
1617                         onComplete: function(transport) {
1618                                 open_article_callback(transport);
1619                         } });
1620
1621
1622         } catch (e) {
1623                 exception_error("openArticleInNewWindow", e);
1624         }
1625 }
1626
1627 /* http://textsnippets.com/posts/show/835 */
1628
1629 Position.GetWindowSize = function(w) {
1630         w = w ? w : window;
1631         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1632         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1633         return [width, height]
1634 }
1635
1636 /* http://textsnippets.com/posts/show/836 */
1637
1638 Position.Center = function(element, parent) {
1639         var w, h, pw, ph;
1640         var d = Element.getDimensions(element);
1641         w = d.width;
1642         h = d.height;
1643         Position.prepare();
1644         if (!parent) {
1645                 var ws = Position.GetWindowSize();
1646                 pw = ws[0];
1647                 ph = ws[1];
1648         } else {
1649                 pw = parent.offsetWidth;
1650                 ph = parent.offsetHeight;
1651         }
1652         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1653         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1654 }
1655
1656
1657 function labeltest_callback(transport) {
1658         try {
1659                 var container = document.getElementById('label_test_result');
1660
1661                 container.innerHTML = transport.responseText;
1662                 if (!Element.visible(container)) {
1663                         Effect.SlideDown(container, { duration : 0.5 });
1664                 }
1665
1666                 notify("");
1667         } catch (e) {
1668                 exception_error("labeltest_callback", e);
1669         }
1670 }
1671
1672 function labelTest() {
1673
1674         try {
1675                 var container = document.getElementById('label_test_result');
1676
1677                 var form = document.forms['label_edit_form'];
1678
1679                 var sql_exp = form.sql_exp.value;
1680                 var description = form.description.value;
1681
1682                 notify_progress("Loading, please wait...");
1683
1684                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1685                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1686
1687                 new Ajax.Request(query, {
1688                         onComplete: function (transport) {
1689                                 labeltest_callback(transport);
1690                         } });
1691
1692                 return false;
1693
1694         } catch (e) {
1695                 exception_error("labelTest", e);
1696         }
1697 }
1698
1699 function isCdmMode() {
1700         return !document.getElementById("headlinesList");
1701 }
1702
1703 function getSelectedArticleIds2() {
1704         var rows = new Array();
1705         var cdm_mode = isCdmMode();
1706
1707         if (cdm_mode) {
1708                 rows = cdmGetSelectedArticles();
1709         } else {
1710                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1711         }
1712
1713         var ids = new Array();
1714
1715         for (var i = 0; i < rows.length; i++) {
1716                 var chk = document.getElementById("RCHK-" + rows[i]);
1717                 if (chk && chk.checked) {
1718                         ids.push(rows[i]);
1719                 }
1720         }
1721
1722         return ids;
1723 }
1724
1725