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
 600                         if (id == "global-unread") {
 601                                 global_unread = ctr;
 602                                 updateTitle();
 603                                 continue;
 604                         }
 605
 606                         if (id == "subscribed-feeds") {
 607                                 feeds_found = ctr;
 608                                 continue;
 609                         }
 610
 611                         if (t == "category") {
 612                                 var catctr = document.getElementById("FCATCTR-" + id);
 613                                 if (catctr) {
 614                                         catctr.innerHTML = "(" + ctr + ")";
 615                                         if (ctr > 0) {
 616                                                 catctr.className = "catCtrHasUnread";
 617                                         } else {
 618                                                 catctr.className = "catCtrNoUnread";
 619                                         }
 620                                 }
 621                                 continue;
 622                         }
 623
 624                         var feedctr = document.getElementById("FEEDCTR-" + id);
 625                         var feedu = document.getElementById("FEEDU-" + id);
 626                         var feedr = document.getElementById("FEEDR-" + id);
 627                         var feed_img = document.getElementById("FIMG-" + id);
 628                         var feedlink = document.getElementById("FEEDL-" + id);
 629                         var feedupd = document.getElementById("FLUPD-" + id);
 630
 631                         if (updated && feedlink) {
 632                                 if (error) {
 633                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 634                                 } else {
 635                                         feedlink.title = "Updated: " + updated;
 636                                 }
 637                         }
 638
 639                         if (updated && feedupd) {
 640                                 if (error) {
 641                                         feedupd.innerHTML = updated + " (Error)";
 642                                 } else {
 643                                         feedupd.innerHTML = updated;
 644                                 }
 645                         }
 646
 647                         if (has_img && feed_img && !is_msie()) {
 648                                 if (!feed_img.src.match(id + ".ico")) {
 649                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 650                                 }
 651                         }
 652
 653                         if (feedctr && feedu && feedr) {
 654
 655                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 656                                         viewCurrentFeed();
 657                                 }
 658
 659                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 660
 661                                 feedu.innerHTML = ctr;
 662
 663                                 if (error) {
 664                                         feedr.className = feedr.className.replace("feed", "error");
 665                                 } else if (id > 0) {
 666                                         feedr.className = feedr.className.replace("error", "feed");
 667                                 }
 668
 669                                 if (ctr > 0) {
 670                                         feedctr.className = "odd";
 671                                         if (!feedr.className.match("Unread")) {
 672                                                 var is_selected = feedr.className.match("Selected");
 673
 674                                                 feedr.className = feedr.className.replace("Selected", "");
 675                                                 feedr.className = feedr.className.replace("Unread", "");
 676
 677                                                 feedr.className = feedr.className + "Unread";
 678
 679                                                 if (is_selected) {
 680                                                         feedr.className = feedr.className + "Selected";
 681                                                 }
 682
 683                                         }
 684
 685                                         if (row_needs_hl) {
 686                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 687                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 688                                         }
 689                                 } else {
 690                                         feedctr.className = "invisible";
 691                                         feedr.className = feedr.className.replace("Unread", "");
 692                                 }
 693                         }
 694                 }
 695
 696                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 697
 698                 var feeds_stored = number_of_feeds;
 699
 700                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 701
 702                 if (feeds_stored != feeds_found) {
 703                         number_of_feeds = feeds_found;
 704
 705                         if (feeds_stored != 0 && feeds_found != 0) {
 706                                 debug("Subscribed feed number changed, refreshing feedlist");
 707                                 setTimeout('updateFeedList(false, false)', 50);
 708                         }
 709                 }
 710
 711         } catch (e) {
 712                 exception_error("parse_counters", e);
 713         }
 714 }
 715
 716 function parse_counters_reply(xmlhttp, scheduled_call) {
 717
 718         if (!xmlhttp.responseXML) {
 719                 notify_error("Backend did not return valid XML", true);
 720                 return;
 721         }
 722
 723         var reply = xmlhttp.responseXML.firstChild;
 724
 725         if (!reply) {
 726                 notify_error("Backend did not return expected XML object", true);
 727                 updateTitle("");
 728                 return;
 729         }
 730
 731         var error_code = false;
 732         var error_msg = false;
 733
 734         if (reply.firstChild) {
 735                 error_code = reply.firstChild.getAttribute("error-code");
 736                 error_msg = reply.firstChild.getAttribute("error-msg");
 737         }
 738
 739         if (!error_code) {
 740                 error_code = reply.getAttribute("error-code");
 741                 error_msg = reply.getAttribute("error-msg");
 742         }
 743
 744         if (error_code && error_code != 0) {
 745                 debug("refetch_callback: got error code " + error_code);
 746                 return fatalError(error_code, error_msg);
 747         }
 748
 749         var counters = reply.getElementsByTagName("counters")[0];
 750
 751         parse_counters(counters, scheduled_call);
 752
 753         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 754
 755         parse_runtime_info(runtime_info);
 756
 757         if (getInitParam("feeds_sort_by_unread") == 1) {
 758                         resort_feedlist();
 759         }
 760
 761         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 762
 763 }
 764
 765 function all_counters_callback2(transport) {
 766         try {
 767                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 768                 parse_counters_reply(transport);
 769                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 770
 771         } catch (e) {
 772                 exception_error("all_counters_callback2", e);
 773         }
 774 }
 775
 776 function get_feed_entry_unread(doc, elem) {
 777
 778         var id = elem.id.replace("FEEDR-", "");
 779
 780         if (id <= 0) {
 781                 return -1;
 782         }
 783
 784         try {
 785                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 786         } catch (e) {
 787                 return -1;
 788         }
 789 }
 790
 791 function resort_category(doc, node) {
 792         debug("resort_category: " + node);
 793
 794         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 795                 for (i = 0; i < node.childNodes.length; i++) {
 796                         if (node.childNodes[i].nodeName != "LI") { continue; }
 797
 798                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 799                                 continue;
 800                         }
 801
 802                         for (j = i+1; j < node.childNodes.length; j++) {
 803                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 804
 805                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 806                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 807
 808                                 if (cur_val > tmp_val) {
 809                                         tempnode_i = node.childNodes[i].cloneNode(true);
 810                                         tempnode_j = node.childNodes[j].cloneNode(true);
 811                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 812                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 813                                 }
 814                         }
 815
 816                 }
 817         }
 818
 819 }
 820
 821 function resort_feedlist() {
 822         debug("resort_feedlist");
 823
 824         var fd = document;
 825
 826         if (fd.getElementById("feedCatHolder")) {
 827
 828                 var feeds = fd.getElementById("feedList");
 829                 var child = feeds.firstChild;
 830
 831                 while (child) {
 832
 833                         if (child.id == "feedCatHolder") {
 834                                 resort_category(fd, child.firstChild);
 835                         }
 836
 837                         child = child.nextSibling;
 838                 }
 839
 840         } else {
 841                 resort_category(fd, fd.getElementById("feedList"));
 842         }
 843 }
 844
 845 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 846   * * @author Sundar Dorai-Raj
 847   * * Email: sdoraira@vt.edu
 848   * * This program is free software; you can redistribute it and/or
 849   * * modify it under the terms of the GNU General Public License
 850   * * as published by the Free Software Foundation; either version 2
 851   * * of the License, or (at your option) any later version,
 852   * * provided that any use properly credits the author.
 853   * * This program is distributed in the hope that it will be useful,
 854   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 855   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 856   * * GNU General Public License for more details at http://www.gnu.org * * */
 857
 858   var numbers=".0123456789";
 859   function isNumeric(x) {
 860     // is x a String or a character?
 861     if(x.length>1) {
 862       // remove negative sign
 863       x=Math.abs(x)+"";
 864       for(j=0;j<x.length;j++) {
 865         // call isNumeric recursively for each character
 866         number=isNumeric(x.substring(j,j+1));
 867         if(!number) return number;
 868       }
 869       return number;
 870     }
 871     else {
 872       // if x is number return true
 873       if(numbers.indexOf(x)>=0) return true;
 874       return false;
 875     }
 876   }
 877
 878
 879 function hideOrShowFeeds(doc, hide) {
 880
 881         debug("hideOrShowFeeds: " + doc + ", " + hide);
 882
 883         var fd = document;
 884
 885         var list = fd.getElementById("feedList");
 886
 887         if (fd.getElementById("feedCatHolder")) {
 888
 889                 var feeds = fd.getElementById("feedList");
 890                 var child = feeds.firstChild;
 891
 892                 while (child) {
 893
 894                         if (child.id == "feedCatHolder") {
 895                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 896                         }
 897
 898                         child = child.nextSibling;
 899                 }
 900
 901         } else {
 902                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 903         }
 904 }
 905
 906 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 907
 908 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 909
 910         var cat_unread = 0;
 911
 912         if (!node) {
 913                 debug("hideOrShowFeeds: passed node is null, aborting");
 914                 return;
 915         }
 916
 917         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 918                 for (i = 0; i < node.childNodes.length; i++) {
 919                         if (node.childNodes[i].nodeName != "LI") { continue; }
 920
 921                         if (node.childNodes[i].style != undefined) {
 922
 923                                 var has_unread = (node.childNodes[i].className != "feed" &&
 924                                         node.childNodes[i].className != "label" &&
 925                                         node.childNodes[i].className != "virt" &&
 926                                         node.childNodes[i].className != "tag");
 927
 928         //                      debug(node.childNodes[i].id + " --> " + has_unread);
 929
 930                                 if (hide && !has_unread) {
 931                                         //node.childNodes[i].style.display = "none";
 932                                         Effect.Fade(node.childNodes[i], {duration : 0.3});
 933                                 }
 934
 935                                 if (!hide) {
 936                                         node.childNodes[i].style.display = "list-item";
 937                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 938                                 }
 939
 940                                 if (has_unread) {
 941                                         node.childNodes[i].style.display = "list-item";
 942                                         cat_unread++;
 943                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 944                                         //Effect.Highlight(node.childNodes[i]);
 945                                 }
 946                         }
 947                 }
 948         }
 949
 950         if (cat_unread == 0) {
 951                 if (cat_node.style == undefined) {
 952                         debug("ERROR: supplied cat_node " + cat_node +
 953                                 " has no styles. WTF?");
 954                         return;
 955                 }
 956                 if (hide) {
 957                         //cat_node.style.display = "none";
 958                         Effect.Fade(cat_node, {duration : 0.3});
 959                 } else {
 960                         cat_node.style.display = "list-item";
 961                 }
 962         } else {
 963                 try {
 964                         cat_node.style.display = "list-item";
 965                 } catch (e) {
 966                         debug(e);
 967                 }
 968         }
 969
 970 //      debug("unread for category: " + cat_unread);
 971 }
 972
 973 function selectTableRow(r, do_select) {
 974         r.className = r.className.replace("Selected", "");
 975
 976         if (do_select) {
 977                 r.className = r.className + "Selected";
 978         }
 979 }
 980
 981 function selectTableRowById(elem_id, check_id, do_select) {
 982
 983         try {
 984
 985                 var row = document.getElementById(elem_id);
 986
 987                 if (row) {
 988                         selectTableRow(row, do_select);
 989                 }
 990
 991                 var check = document.getElementById(check_id);
 992
 993                 if (check) {
 994                         check.checked = do_select;
 995                 }
 996         } catch (e) {
 997                 exception_error("selectTableRowById", e);
 998         }
 999 }
1000
1001 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1002         classcheck, reset_others) {
1003
1004         var content = document.getElementById(content_id);
1005
1006         if (!content) {
1007                 alert("[selectTableRows] Element " + content_id + " not found.");
1008                 return;
1009         }
1010
1011         for (i = 0; i < content.rows.length; i++) {
1012                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1013
1014                         if (content.rows[i].id.match(prefix)) {
1015                                 selectTableRow(content.rows[i], do_select);
1016
1017                                 var row_id = content.rows[i].id.replace(prefix, "");
1018                                 var check = document.getElementById(check_prefix + row_id);
1019
1020                                 if (check) {
1021                                         check.checked = do_select;
1022                                 }
1023                         } else if (reset_others) {
1024                                 selectTableRow(content.rows[i], false);
1025
1026                                 var row_id = content.rows[i].id.replace(prefix, "");
1027                                 var check = document.getElementById(check_prefix + row_id);
1028
1029                                 if (check) {
1030                                         check.checked = false;
1031                                 }
1032
1033                         }
1034                 } else if (reset_others) {
1035                         selectTableRow(content.rows[i], false);
1036
1037                         var row_id = content.rows[i].id.replace(prefix, "");
1038                         var check = document.getElementById(check_prefix + row_id);
1039
1040                         if (check) {
1041                                 check.checked = false;
1042                         }
1043
1044                 }
1045         }
1046 }
1047
1048 function getSelectedTableRowIds(content_id, prefix) {
1049
1050         var content = document.getElementById(content_id);
1051
1052         if (!content) {
1053                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1054                 return;
1055         }
1056
1057         var sel_rows = new Array();
1058
1059         for (i = 0; i < content.rows.length; i++) {
1060                 if (content.rows[i].id.match(prefix) &&
1061                                 content.rows[i].className.match("Selected")) {
1062
1063                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1064                         sel_rows.push(row_id);
1065                 }
1066         }
1067
1068         return sel_rows;
1069
1070 }
1071
1072 function toggleSelectRowById(sender, id) {
1073         var row = document.getElementById(id);
1074
1075         if (sender.checked) {
1076                 if (!row.className.match("Selected")) {
1077                         row.className = row.className + "Selected";
1078                 }
1079         } else {
1080                 if (row.className.match("Selected")) {
1081                         row.className = row.className.replace("Selected", "");
1082                 }
1083         }
1084 }
1085
1086 function toggleSelectListRow(sender) {
1087         var parent_row = sender.parentNode;
1088
1089         if (sender.checked) {
1090                 if (!parent_row.className.match("Selected")) {
1091                         parent_row.className = parent_row.className + "Selected";
1092                 }
1093         } else {
1094                 if (parent_row.className.match("Selected")) {
1095                         parent_row.className = parent_row.className.replace("Selected", "");
1096                 }
1097         }
1098 }
1099
1100 function tSR(sender) {
1101         return toggleSelectRow(sender);
1102 }
1103
1104 function toggleSelectRow(sender) {
1105         var parent_row = sender.parentNode.parentNode;
1106
1107         if (sender.checked) {
1108                 if (!parent_row.className.match("Selected")) {
1109                         parent_row.className = parent_row.className + "Selected";
1110                 }
1111         } else {
1112                 if (parent_row.className.match("Selected")) {
1113                         parent_row.className = parent_row.className.replace("Selected", "");
1114                 }
1115         }
1116 }
1117
1118 function getRelativeFeedId(list, id, direction, unread_only) {
1119         var rows = list.getElementsByTagName("LI");
1120         var feeds = new Array();
1121
1122         for (var i = 0; i < rows.length; i++) {
1123                 if (rows[i].id.match("FEEDR-")) {
1124
1125                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1126
1127                                 if (!unread_only ||
1128                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1129                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1130                                 }
1131                         }
1132                 }
1133         }
1134
1135         if (!id) {
1136                 if (direction == "next") {
1137                         return feeds.shift();
1138                 } else {
1139                         return feeds.pop();
1140                 }
1141         } else {
1142                 if (direction == "next") {
1143                         var idx = feeds.indexOf(id);
1144                         if (idx != -1 && idx < feeds.length) {
1145                                 return feeds[idx+1];
1146                         } else {
1147                                 return getRelativeFeedId(list, false, direction, unread_only);
1148                         }
1149                 } else {
1150                         var idx = feeds.indexOf(id);
1151                         if (idx > 0) {
1152                                 return feeds[idx-1];
1153                         } else {
1154                                 return getRelativeFeedId(list, false, direction, unread_only);
1155                         }
1156                 }
1157
1158         }
1159 }
1160
1161 function showBlockElement(id, h_id) {
1162         var elem = document.getElementById(id);
1163
1164         if (elem) {
1165                 elem.style.display = "block";
1166
1167                 if (h_id) {
1168                         elem = document.getElementById(h_id);
1169                         if (elem) {
1170                                 elem.style.display = "none";
1171                         }
1172                 }
1173         } else {
1174                 alert("[showBlockElement] can't find element with id " + id);
1175         }
1176 }
1177
1178 function appearBlockElement_afh(effect) {
1179
1180 }
1181
1182 function checkboxToggleElement(elem, id) {
1183         if (elem.checked) {
1184                 Effect.SlideDown(id, {duration : 0.5});
1185         } else {
1186                 Effect.SlideUp(id, {duration : 0.5});
1187         }
1188 }
1189
1190 function appearBlockElement(id, h_id) {
1191
1192         try {
1193                 Effect.Fade(h_id);
1194                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1195         } catch (e) {
1196                 exception_error("appearBlockElement", e);
1197         }
1198
1199 }
1200
1201
1202 function hideParentElement(e) {
1203         e.parentNode.style.display = "none";
1204 }
1205
1206 function dropboxSelect(e, v) {
1207         for (i = 0; i < e.length; i++) {
1208                 if (e[i].value == v) {
1209                         e.selectedIndex = i;
1210                         break;
1211                 }
1212         }
1213 }
1214
1215 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1216 // bugfixed just a little bit :-)
1217 function getURLParam(strParamName){
1218   var strReturn = "";
1219   var strHref = window.location.href;
1220
1221   if (strHref.indexOf("#") == strHref.length-1) {
1222                 strHref = strHref.substring(0, strHref.length-1);
1223   }
1224
1225   if ( strHref.indexOf("?") > -1 ){
1226     var strQueryString = strHref.substr(strHref.indexOf("?"));
1227     var aQueryString = strQueryString.split("&");
1228     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1229       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1230         var aParam = aQueryString[iParam].split("=");
1231         strReturn = aParam[1];
1232         break;
1233       }
1234     }
1235   }
1236   return strReturn;
1237 }
1238
1239 function leading_zero(p) {
1240         var s = String(p);
1241         if (s.length == 1) s = "0" + s;
1242         return s;
1243 }
1244
1245 function closeInfoBox(cleanup) {
1246
1247         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1248                 var overlay = document.getElementById("dialog_overlay");
1249                 if (overlay) {
1250                         overlay.style.display = "none";
1251                 }
1252         }
1253
1254         var box = document.getElementById('infoBox');
1255         var shadow = document.getElementById('infoBoxShadow');
1256
1257         if (shadow) {
1258                 shadow.style.display = "none";
1259         } else if (box) {
1260                 box.style.display = "none";
1261         }
1262
1263         if (cleanup) box.innerHTML = "&nbsp;";
1264
1265         enableHotkeys();
1266
1267         return false;
1268 }
1269
1270
1271 function displayDlg(id, param) {
1272
1273         if (!xmlhttp_ready(xmlhttp)) {
1274                 printLockingError();
1275                 return
1276         }
1277
1278         notify_progress("Loading, please wait...", true);
1279
1280         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1281                 param_escape(id) + "&param=" + param_escape(param), true);
1282         xmlhttp.onreadystatechange=infobox_callback;
1283         xmlhttp.send(null);
1284
1285         disableHotkeys();
1286
1287         return false;
1288 }
1289
1290 function infobox_submit_callback() {
1291         if (xmlhttp.readyState == 4) {
1292                 closeInfoBox();
1293
1294                 try {
1295                         // called from prefs, reload tab
1296                         if (active_tab) {
1297                                 selectTab(active_tab, false);
1298                         }
1299                 } catch (e) { }
1300
1301                 if (xmlhttp.responseText) {
1302                         notify_info(xmlhttp.responseText);
1303                 }
1304
1305         }
1306 }
1307
1308 function infobox_callback2(transport) {
1309         try {
1310
1311                 debug("infobox_callback2");
1312
1313                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1314                         var overlay = document.getElementById("dialog_overlay");
1315                         if (overlay) {
1316                                 overlay.style.display = "block";
1317                         }
1318                 }
1319
1320                 var box = document.getElementById('infoBox');
1321                 var shadow = document.getElementById('infoBoxShadow');
1322                 if (box) {
1323
1324 /*                              if (!is_safari()) {
1325                                 new Draggable(shadow);
1326                         } */
1327
1328                         box.innerHTML=transport.responseText;
1329                         if (shadow) {
1330                                 shadow.style.display = "block";
1331                         } else {
1332                                 box.style.display = "block";
1333                         }
1334                 }
1335
1336                 /* FIXME this needs to be moved out somewhere */
1337
1338                 if (document.getElementById("tags_choices")) {
1339                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1340                                 "backend.php?op=rpc&subop=completeTags",
1341                                 { tokens: ',', paramName: "search" });
1342                 }
1343
1344                 notify("");
1345         } catch (e) {
1346                 exception_error("infobox_callback2", e);
1347         }
1348 }
1349
1350 function infobox_callback() {
1351         if (xmlhttp.readyState == 4) {
1352                 infobox_callback2(xmlhttp);
1353         }
1354 }
1355
1356 function addFilter() {
1357
1358         if (!xmlhttp_ready(xmlhttp)) {
1359                 printLockingError();
1360                 return
1361         }
1362
1363         var form = document.forms['filter_add_form'];
1364         var reg_exp = form.reg_exp.value;
1365
1366         if (reg_exp == "") {
1367                 alert(__("Can't add filter: nothing to match on."));
1368                 return false;
1369         }
1370
1371         var query = Form.serialize("filter_add_form");
1372
1373         xmlhttp.open("GET", "backend.php?" + query, true);
1374         xmlhttp.onreadystatechange=infobox_submit_callback;
1375         xmlhttp.send(null);
1376
1377         return true;
1378 }
1379
1380 function toggleSubmitNotEmpty(e, submit_id) {
1381         try {
1382                 document.getElementById(submit_id).disabled = (e.value == "")
1383         } catch (e) {
1384                 exception_error("toggleSubmitNotEmpty", e);
1385         }
1386 }
1387
1388 function isValidURL(s) {
1389         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1390 }
1391
1392 function qaddFeed() {
1393
1394         if (!xmlhttp_ready(xmlhttp)) {
1395                 printLockingError();
1396                 return
1397         }
1398
1399         var form = document.forms['feed_add_form'];
1400         var feed_url = form.feed_url.value;
1401
1402         if (feed_url == "") {
1403                 alert(__("Can't subscribe: no feed URL given."));
1404                 return false;
1405         }
1406
1407         notify_progress(__("Subscribing to feed..."), true);
1408
1409         closeInfoBox();
1410
1411         var feeds_doc = document;
1412
1413 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1414
1415         var query = Form.serialize("feed_add_form");
1416
1417         debug("subscribe q: " + query);
1418
1419 /*      xmlhttp.open("GET", "backend.php?" + query, true);
1420         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1421         xmlhttp.send(null); */
1422
1423         xmlhttp.open("POST", "backend.php", true);
1424         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1425         xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1426         xmlhttp.send(query);
1427
1428         return false;
1429 }
1430
1431 function filterCR(e, f)
1432 {
1433      var key;
1434
1435      if(window.event)
1436           key = window.event.keyCode;     //IE
1437      else
1438           key = e.which;     //firefox
1439
1440         if (key == 13) {
1441                 if (typeof f != 'undefined') {
1442                         f();
1443                         return false;
1444                 } else {
1445                         return false;
1446                 }
1447         } else {
1448                 return true;
1449         }
1450 }
1451
1452 function getMainContext() {
1453         return this.window;
1454 }
1455
1456 function getFeedsContext() {
1457         return this.window;
1458 }
1459
1460 function getContentContext() {
1461         return this.window;
1462 }
1463
1464 function getHeadlinesContext() {
1465         return this.window;
1466 }
1467
1468 var debug_last_class = "even";
1469
1470 function debug(msg) {
1471
1472         if (debug_last_class == "even") {
1473                 debug_last_class = "odd";
1474         } else {
1475                 debug_last_class = "even";
1476         }
1477
1478         var c = document.getElementById('debug_output');
1479         if (c && c.style.display == "block") {
1480                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1481                         c.removeChild(c.lastChild);
1482                 }
1483
1484                 var d = new Date();
1485                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1486                         ":" + leading_zero(d.getSeconds());
1487                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1488                         msg + "</li>" + c.innerHTML;
1489         }
1490 }
1491
1492 function getInitParam(key) {
1493         return init_params[key];
1494 }
1495
1496 function storeInitParam(key, value) {
1497         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1498         init_params[key] = value;
1499 }
1500
1501 function fatalError(code, message) {
1502         try {
1503
1504                 if (code == 6) {
1505                         window.location.href = "tt-rss.php";
1506                 } else if (code == 5) {
1507                         window.location.href = "update.php";
1508                 } else {
1509                         var fe = document.getElementById("fatal_error");
1510                         var fc = document.getElementById("fatal_error_msg");
1511
1512                         if (message == "") message = "Unknown error";
1513
1514                         fc.innerHTML = "<img src='images/sign_excl.png'> " + message + " (Code " + code + ")";
1515
1516                         fe.style.display = "block";
1517                 }
1518
1519         } catch (e) {
1520                 exception_error("fatalError", e);
1521         }
1522 }
1523
1524 function getFeedName(id, is_cat) {
1525         var d = getFeedsContext().document;
1526
1527         var e;
1528
1529         if (is_cat) {
1530                 e = d.getElementById("FCATN-" + id);
1531         } else {
1532                 e = d.getElementById("FEEDN-" + id);
1533         }
1534         if (e) {
1535                 return e.innerHTML.stripTags();
1536         } else {
1537                 return null;
1538         }
1539 }
1540
1541 function viewContentUrl(url) {
1542         getContentContext().location = url;
1543 }
1544
1545 function filterDlgCheckAction(sender) {
1546
1547         try {
1548
1549                 var action = sender[sender.selectedIndex].value;
1550
1551                 var form = document.forms["filter_add_form"];
1552
1553                 if (!form) {
1554                         form = document.forms["filter_edit_form"];
1555                 }
1556
1557                 if (!form) {
1558                         debug("filterDlgCheckAction: can't find form!");
1559                         return;
1560                 }
1561
1562                 var action_param = form.action_param;
1563
1564                 if (!action_param) {
1565                         debug("filterDlgCheckAction: can't find action param!");
1566                         return;
1567                 }
1568
1569                 // if selected action supports parameters, enable params field
1570                 if (action == 4) {
1571                         action_param.disabled = false;
1572                 } else {
1573                         action_param.disabled = true;
1574                 }
1575
1576         } catch (e) {
1577                 exception_error(e, "filterDlgCheckAction");
1578         }
1579
1580 }
1581
1582 function explainError(code) {
1583         return displayDlg("explainError", code);
1584 }
1585
1586 // this only searches loaded headlines list, not in CDM
1587 function getRelativePostIds(id) {
1588
1589         debug("getRelativePostIds: " + id);
1590
1591         var ids = new Array();
1592         var container = document.getElementById("headlinesList");
1593
1594         if (container) {
1595                 var rows = container.rows;
1596
1597                 for (var i = 0; i < rows.length; i++) {
1598                         var r_id = rows[i].id.replace("RROW-", "");
1599
1600                         if (r_id == id) {
1601                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1602                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1603                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1604
1605                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1606                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1607                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1608
1609                                 return ids;
1610                         }
1611                 }
1612         }
1613
1614         return false;
1615 }
1616
1617 function openArticleInNewWindow(id) {
1618         try {
1619                 debug("openArticleInNewWindow: " + id);
1620
1621                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1622
1623                 debug(query);
1624
1625                 new Ajax.Request(query, {
1626                         onComplete: function(transport) {
1627                                 open_article_callback(transport);
1628                         } });
1629
1630
1631         } catch (e) {
1632                 exception_error("openArticleInNewWindow", e);
1633         }
1634 }
1635
1636 /* http://textsnippets.com/posts/show/835 */
1637
1638 Position.GetWindowSize = function(w) {
1639         w = w ? w : window;
1640         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1641         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1642         return [width, height]
1643 }
1644
1645 /* http://textsnippets.com/posts/show/836 */
1646
1647 Position.Center = function(element, parent) {
1648         var w, h, pw, ph;
1649         var d = Element.getDimensions(element);
1650         w = d.width;
1651         h = d.height;
1652         Position.prepare();
1653         if (!parent) {
1654                 var ws = Position.GetWindowSize();
1655                 pw = ws[0];
1656                 ph = ws[1];
1657         } else {
1658                 pw = parent.offsetWidth;
1659                 ph = parent.offsetHeight;
1660         }
1661         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1662         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1663 }
1664
1665 function labeltest_callback() {
1666         var container = document.getElementById('label_test_result');
1667         if (xmlhttp.readyState == 4) {
1668
1669                 container.innerHTML=xmlhttp.responseText;
1670                 if (!Element.visible(container)) {
1671                         Effect.SlideDown(container, { duration : 0.5 });
1672                 }
1673                 notify("");
1674         }
1675 }
1676
1677 function labelTest() {
1678
1679         var container = document.getElementById('label_test_result');
1680
1681         var form = document.forms['label_edit_form'];
1682
1683         var sql_exp = form.sql_exp.value;
1684         var description = form.description.value;
1685
1686         notify_progress("Loading, please wait...");
1687
1688         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=test&expr=" +
1689                 param_escape(sql_exp) + "&descr=" + param_escape(description), true);
1690
1691         xmlhttp.onreadystatechange=labeltest_callback;
1692         xmlhttp.send(null);
1693
1694         return false;
1695 }
1696