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