functions.js

   1 var hotkeys_enabled = true;
   2 var xmlhttp_rpc = Ajax.getTransport();
   3 var notify_silent = false;
   4 var last_progress_point = 0;
   5
   6 /* add method to remove element from array */
   7
   8 Array.prototype.remove = function(s) {
   9         for (var i=0; i < this.length; i++) {
  10                 if (s == this[i]) this.splice(i, 1);
  11         }
  12 }
  13
  14 function is_msie() {
  15         return navigator.userAgent.match("MSIE");
  16 }
  17
  18 function is_opera() {
  19         return window.opera;
  20 }
  21
  22 function exception_error(location, e, silent) {
  23         var msg;
  24
  25         if (e.fileName) {
  26                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  27
  28                 msg = "Exception: " + e.name + ", " + e.message +
  29                         "\nFunction: " + location + "()" +
  30                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  31
  32         } else {
  33                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  34         }
  35
  36         debug("<b>EXCEPTION: " + msg + "</b>");
  37
  38         if (!silent) {
  39                 alert(msg);
  40         }
  41 }
  42
  43 function disableHotkeys() {
  44         hotkeys_enabled = false;
  45 }
  46
  47 function enableHotkeys() {
  48         hotkeys_enabled = true;
  49 }
  50
  51 function xmlhttp_ready(obj) {
  52         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  53 }
  54
  55 function open_article_callback(transport) {
  56         try {
  57
  58                 if (transport.responseXML) {
  59
  60                         var link = transport.responseXML.getElementsByTagName("link")[0];
  61                         var id = transport.responseXML.getElementsByTagName("id")[0];
  62
  63                         debug("open_article_callback, received link: " + link);
  64
  65                         if (link && id) {
  66
  67                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
  68
  69                                 debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
  70
  71                                 var w = window.open(link.firstChild.nodeValue, wname);
  72
  73                                 if (!w) { notify_error("Failed to load article in new window"); }
  74
  75                                 if (id) {
  76                                         id = id.firstChild.nodeValue;
  77                                         if (!document.getElementById("headlinesList")) {
  78                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  79                                         }
  80                                 }
  81                         } else {
  82                                 notify_error("Can't open article: received invalid article link");
  83                         }
  84                 } else {
  85                         notify_error("Can't open article: received invalid XML");
  86                 }
  87
  88         } catch (e) {
  89                 exception_error("open_article_callback", e);
  90         }
  91 }
  92
  93 function param_escape(arg) {
  94         if (typeof encodeURIComponent != 'undefined')
  95                 return encodeURIComponent(arg);
  96         else
  97                 return escape(arg);
  98 }
  99
 100 function param_unescape(arg) {
 101         if (typeof decodeURIComponent != 'undefined')
 102                 return decodeURIComponent(arg);
 103         else
 104                 return unescape(arg);
 105 }
 106
 107 function delay(gap) {
 108         var then,now;
 109         then=new Date().getTime();
 110         now=then;
 111         while((now-then)<gap) {
 112                 now=new Date().getTime();
 113         }
 114 }
 115
 116 var notify_hide_timerid = false;
 117
 118 function hide_notify() {
 119         var n = document.getElementById("notify");
 120         if (n) {
 121                 n.style.display = "none";
 122         }
 123 }
 124
 125 function notify_silent_next() {
 126         notify_silent = true;
 127 }
 128
 129 function notify_real(msg, no_hide, n_type) {
 130
 131         if (notify_silent) {
 132                 notify_silent = false;
 133                 return;
 134         }
 135
 136         var n = document.getElementById("notify");
 137         var nb = document.getElementById("notify_body");
 138
 139         if (!n || !nb) return;
 140
 141         if (notify_hide_timerid) {
 142                 window.clearTimeout(notify_hide_timerid);
 143         }
 144
 145         if (msg == "") {
 146                 if (n.style.display == "block") {
 147                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 148                 }
 149                 return;
 150         } else {
 151                 n.style.display = "block";
 152         }
 153
 154         /* types:
 155
 156                 1 - generic
 157                 2 - progress
 158                 3 - error
 159                 4 - info
 160
 161         */
 162
 163         if (typeof __ != 'undefined') {
 164                 msg = __(msg);
 165         }
 166
 167         if (n_type == 1) {
 168                 n.className = "notify";
 169         } else if (n_type == 2) {
 170                 n.className = "notifyProgress";
 171                 msg = "<img src='images/indicator_white.gif'> " + msg;
 172         } else if (n_type == 3) {
 173                 n.className = "notifyError";
 174                 msg = "<img src='images/sign_excl.gif'> " + msg;
 175         } else if (n_type == 4) {
 176                 n.className = "notifyInfo";
 177                 msg = "<img src='images/sign_info.gif'> " + msg;
 178         }
 179
 180 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 181
 182         nb.innerHTML = msg;
 183
 184         if (!no_hide) {
 185                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 186         }
 187 }
 188
 189 function notify(msg, no_hide) {
 190         notify_real(msg, no_hide, 1);
 191 }
 192
 193 function notify_progress(msg, no_hide) {
 194         notify_real(msg, no_hide, 2);
 195 }
 196
 197 function notify_error(msg, no_hide) {
 198         notify_real(msg, no_hide, 3);
 199
 200 }
 201
 202 function notify_info(msg, no_hide) {
 203         notify_real(msg, no_hide, 4);
 204 }
 205
 206 function printLockingError() {
 207         notify_info("Please wait until operation finishes.");
 208 }
 209
 210 function cleanSelectedList(element) {
 211         var content = document.getElementById(element);
 212
 213         if (!document.getElementById("feedCatHolder")) {
 214                 for (i = 0; i < content.childNodes.length; i++) {
 215                         var child = content.childNodes[i];
 216                         try {
 217                                 child.className = child.className.replace("Selected", "");
 218                         } catch (e) {
 219                                 //
 220                         }
 221                 }
 222         } else {
 223                 for (i = 0; i < content.childNodes.length; i++) {
 224                         var child = content.childNodes[i];
 225                         if (child.id == "feedCatHolder") {
 226                                 debug(child.id);
 227                                 var fcat = child.lastChild;
 228                                 for (j = 0; j < fcat.childNodes.length; j++) {
 229                                         var feed = fcat.childNodes[j];
 230                                         feed.className = feed.className.replace("Selected", "");
 231                                 }
 232                         }
 233                 }
 234         }
 235 }
 236
 237
 238 function cleanSelected(element) {
 239         var content = document.getElementById(element);
 240
 241         for (i = 0; i < content.rows.length; i++) {
 242                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 243         }
 244 }
 245
 246 function getVisibleUnreadHeadlines() {
 247         var content = document.getElementById("headlinesList");
 248
 249         var rows = new Array();
 250
 251         if (!content) return rows;
 252
 253         for (i = 0; i < content.rows.length; i++) {
 254                 var row_id = content.rows[i].id.replace("RROW-", "");
 255                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 256                                 rows.push(row_id);
 257                 }
 258         }
 259         return rows;
 260 }
 261
 262 function getVisibleHeadlineIds() {
 263
 264         var content = document.getElementById("headlinesList");
 265
 266         var rows = new Array();
 267
 268         if (!content) return rows;
 269
 270         for (i = 0; i < content.rows.length; i++) {
 271                 var row_id = content.rows[i].id.replace("RROW-", "");
 272                 if (row_id.length > 0) {
 273                                 rows.push(row_id);
 274                 }
 275         }
 276         return rows;
 277 }
 278
 279 function getFirstVisibleHeadlineId() {
 280         if (isCdmMode()) {
 281                 var rows = cdmGetVisibleArticles();
 282                 return rows[0];
 283         } else {
 284                 var rows = getVisibleHeadlineIds();
 285                 return rows[0];
 286         }
 287 }
 288
 289 function getLastVisibleHeadlineId() {
 290         if (isCdmMode()) {
 291                 var rows = cdmGetVisibleArticles();
 292                 return rows[rows.length-1];
 293         } else {
 294                 var rows = getVisibleHeadlineIds();
 295                 return rows[rows.length-1];
 296         }
 297 }
 298
 299 function markHeadline(id) {
 300         var row = document.getElementById("RROW-" + id);
 301         if (row) {
 302                 var is_active = false;
 303
 304                 if (row.className.match("Active")) {
 305                         is_active = true;
 306                 }
 307                 row.className = row.className.replace("Selected", "");
 308                 row.className = row.className.replace("Active", "");
 309                 row.className = row.className.replace("Insensitive", "");
 310
 311                 if (is_active) {
 312                         row.className = row.className = "Active";
 313                 }
 314
 315                 var check = document.getElementById("RCHK-" + id);
 316
 317                 if (check) {
 318                         check.checked = true;
 319                 }
 320
 321                 row.className = row.className + "Selected";
 322
 323         }
 324 }
 325
 326 function getFeedIds() {
 327         var content = document.getElementById("feedsList");
 328
 329         var rows = new Array();
 330
 331         for (i = 0; i < content.rows.length; i++) {
 332                 var id = content.rows[i].id.replace("FEEDR-", "");
 333                 if (id.length > 0) {
 334                         rows.push(id);
 335                 }
 336         }
 337
 338         return rows;
 339 }
 340
 341 function setCookie(name, value, lifetime, path, domain, secure) {
 342
 343         var d = false;
 344
 345         if (lifetime) {
 346                 d = new Date();
 347                 d.setTime(d.getTime() + (lifetime * 1000));
 348         }
 349
 350         debug("setCookie: " + name + " => " + value + ": " + d);
 351
 352         int_setCookie(name, value, d, path, domain, secure);
 353
 354 }
 355
 356 function int_setCookie(name, value, expires, path, domain, secure) {
 357         document.cookie= name + "=" + escape(value) +
 358                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 359                 ((path) ? "; path=" + path : "") +
 360                 ((domain) ? "; domain=" + domain : "") +
 361                 ((secure) ? "; secure" : "");
 362 }
 363
 364 function delCookie(name, path, domain) {
 365         if (getCookie(name)) {
 366                 document.cookie = name + "=" +
 367                 ((path) ? ";path=" + path : "") +
 368                 ((domain) ? ";domain=" + domain : "" ) +
 369                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 370         }
 371 }
 372
 373
 374 function getCookie(name) {
 375
 376         var dc = document.cookie;
 377         var prefix = name + "=";
 378         var begin = dc.indexOf("; " + prefix);
 379         if (begin == -1) {
 380             begin = dc.indexOf(prefix);
 381             if (begin != 0) return null;
 382         }
 383         else {
 384             begin += 2;
 385         }
 386         var end = document.cookie.indexOf(";", begin);
 387         if (end == -1) {
 388             end = dc.length;
 389         }
 390         return unescape(dc.substring(begin + prefix.length, end));
 391 }
 392
 393 function disableContainerChildren(id, disable, doc) {
 394
 395         if (!doc) doc = document;
 396
 397         var container = doc.getElementById(id);
 398
 399         if (!container) {
 400                 //alert("disableContainerChildren: element " + id + " not found");
 401                 return;
 402         }
 403
 404         for (var i = 0; i < container.childNodes.length; i++) {
 405                 var child = container.childNodes[i];
 406
 407                 try {
 408                         child.disabled = disable;
 409                 } catch (E) {
 410
 411                 }
 412
 413                 if (disable) {
 414                         if (child.className && child.className.match("button")) {
 415                                 child.className = "disabledButton";
 416                         }
 417                 } else {
 418                         if (child.className && child.className.match("disabledButton")) {
 419                                 child.className = "button";
 420                         }
 421                 }
 422         }
 423
 424 }
 425
 426 function gotoPreferences() {
 427         document.location.href = "prefs.php";
 428 }
 429
 430 function gotoMain() {
 431         document.location.href = "tt-rss.php";
 432 }
 433
 434 function gotoExportOpml() {
 435         document.location.href = "opml.php?op=Export";
 436 }
 437
 438 function getActiveFeedId() {
 439 //      return getCookie("ttrss_vf_actfeed");
 440         try {
 441                 debug("gAFID: " + active_feed_id);
 442                 return active_feed_id;
 443         } catch (e) {
 444                 exception_error("getActiveFeedId", e);
 445         }
 446 }
 447
 448 function activeFeedIsCat() {
 449         return active_feed_is_cat;
 450 }
 451
 452 function setActiveFeedId(id) {
 453 //      return setCookie("ttrss_vf_actfeed", id);
 454         try {
 455                 debug("sAFID(" + id + ")");
 456                 active_feed_id = id;
 457         } catch (e) {
 458                 exception_error("setActiveFeedId", e);
 459         }
 460 }
 461
 462 function parse_counters(reply, scheduled_call) {
 463         try {
 464
 465                 var feeds_found = 0;
 466
 467                 var elems = reply.getElementsByTagName("counter");
 468
 469                 for (var l = 0; l < elems.length; l++) {
 470
 471                         var id = elems[l].getAttribute("id");
 472                         var t = elems[l].getAttribute("type");
 473                         var ctr = elems[l].getAttribute("counter");
 474                         var error = elems[l].getAttribute("error");
 475                         var has_img = elems[l].getAttribute("hi");
 476                         var updated = elems[l].getAttribute("updated");
 477                         var title = elems[l].getAttribute("title");
 478                         var xmsg = elems[l].getAttribute("xmsg");
 479
 480                         if (id == "global-unread") {
 481                                 global_unread = ctr;
 482                                 updateTitle();
 483                                 continue;
 484                         }
 485
 486                         if (id == "subscribed-feeds") {
 487                                 feeds_found = ctr;
 488                                 continue;
 489                         }
 490
 491                         if (t == "category") {
 492                                 var catctr = document.getElementById("FCATCTR-" + id);
 493                                 if (catctr) {
 494                                         catctr.innerHTML = "(" + ctr + ")";
 495                                         if (ctr > 0) {
 496                                                 catctr.className = "catCtrHasUnread";
 497                                         } else {
 498                                                 catctr.className = "catCtrNoUnread";
 499                                         }
 500                                 }
 501                                 continue;
 502                         }
 503
 504                         var feedctr = document.getElementById("FEEDCTR-" + id);
 505                         var feedu = document.getElementById("FEEDU-" + id);
 506                         var feedr = document.getElementById("FEEDR-" + id);
 507                         var feed_img = document.getElementById("FIMG-" + id);
 508                         var feedlink = document.getElementById("FEEDL-" + id);
 509                         var feedupd = document.getElementById("FLUPD-" + id);
 510
 511                         if (updated && feedlink) {
 512                                 if (error) {
 513                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 514                                 } else {
 515                                         feedlink.title = "Updated: " + updated;
 516                                 }
 517                         }
 518
 519                         if (feedupd) {
 520                                 if (!updated) updated = "";
 521
 522                                 if (error) {
 523                                         if (xmsg) {
 524                                                 feedupd.innerHTML = updated + " " + xmsg + " (Error)";
 525                                         } else {
 526                                                 feedupd.innerHTML = updated + " (Error)";
 527                                         }
 528                                 } else {
 529                                         if (xmsg) {
 530                                                 feedupd.innerHTML = updated + " " + xmsg;
 531                                         } else {
 532                                                 feedupd.innerHTML = updated;
 533                                         }
 534                                 }
 535                         }
 536
 537                         if (has_img && feed_img && !is_msie()) {
 538                                 if (!feed_img.src.match(id + ".ico")) {
 539                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 540                                 }
 541                         }
 542
 543                         if (feedlink && title) {
 544                                 feedlink.innerHTML = title;
 545                         }
 546
 547                         if (feedctr && feedu && feedr) {
 548
 549                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 550                                         viewCurrentFeed();
 551                                 }
 552
 553                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 554
 555                                 feedu.innerHTML = ctr;
 556
 557                                 if (error) {
 558                                         feedr.className = feedr.className.replace("feed", "error");
 559                                 } else if (id > 0) {
 560                                         feedr.className = feedr.className.replace("error", "feed");
 561                                 }
 562
 563                                 if (ctr > 0) {
 564                                         feedctr.className = "odd";
 565                                         if (!feedr.className.match("Unread")) {
 566                                                 var is_selected = feedr.className.match("Selected");
 567
 568                                                 feedr.className = feedr.className.replace("Selected", "");
 569                                                 feedr.className = feedr.className.replace("Unread", "");
 570
 571                                                 feedr.className = feedr.className + "Unread";
 572
 573                                                 if (is_selected) {
 574                                                         feedr.className = feedr.className + "Selected";
 575                                                 }
 576
 577                                         }
 578
 579                                         if (row_needs_hl) {
 580                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 581                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 582                                         }
 583                                 } else {
 584                                         feedctr.className = "invisible";
 585                                         feedr.className = feedr.className.replace("Unread", "");
 586                                 }
 587                         }
 588                 }
 589
 590                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 591
 592                 var feeds_stored = number_of_feeds;
 593
 594                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 595
 596                 if (feeds_stored != feeds_found) {
 597                         number_of_feeds = feeds_found;
 598
 599                         if (feeds_stored != 0 && feeds_found != 0) {
 600                                 debug("Subscribed feed number changed, refreshing feedlist");
 601                                 setTimeout('updateFeedList(false, false)', 50);
 602                         }
 603                 }
 604
 605         } catch (e) {
 606                 exception_error("parse_counters", e);
 607         }
 608 }
 609
 610 function parse_counters_reply(transport, scheduled_call) {
 611
 612         if (!transport.responseXML) {
 613                 notify_error("Backend did not return valid XML", true);
 614                 return;
 615         }
 616
 617         var reply = transport.responseXML.firstChild;
 618
 619         if (!reply) {
 620                 notify_error("Backend did not return expected XML object", true);
 621                 updateTitle("");
 622                 return;
 623         }
 624
 625         var error_code = false;
 626         var error_msg = false;
 627
 628         if (reply.firstChild) {
 629                 error_code = reply.firstChild.getAttribute("error-code");
 630                 error_msg = reply.firstChild.getAttribute("error-msg");
 631         }
 632
 633         if (!error_code) {
 634                 error_code = reply.getAttribute("error-code");
 635                 error_msg = reply.getAttribute("error-msg");
 636         }
 637
 638         if (error_code && error_code != 0) {
 639                 debug("refetch_callback: got error code " + error_code);
 640                 return fatalError(error_code, error_msg);
 641         }
 642
 643         var counters = reply.getElementsByTagName("counters")[0];
 644
 645         parse_counters(counters, scheduled_call);
 646
 647         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 648
 649         parse_runtime_info(runtime_info);
 650
 651         if (getInitParam("feeds_sort_by_unread") == 1) {
 652                         resort_feedlist();
 653         }
 654
 655         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 656
 657 }
 658
 659 function all_counters_callback2(transport) {
 660         try {
 661                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 662                 parse_counters_reply(transport);
 663                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 664
 665         } catch (e) {
 666                 exception_error("all_counters_callback2", e);
 667         }
 668 }
 669
 670 function get_feed_unread(id) {
 671         try {
 672                 return parseInt(document.getElementById("FEEDU-" + id).innerHTML);
 673         } catch (e) {
 674                 exception_error("get_feed_unread", e, true);
 675                 return -1;
 676         }
 677 }
 678
 679 function get_feed_entry_unread(doc, elem) {
 680
 681         var id = elem.id.replace("FEEDR-", "");
 682
 683         if (id <= 0) {
 684                 return -1;
 685         }
 686
 687         try {
 688                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 689         } catch (e) {
 690                 return -1;
 691         }
 692 }
 693
 694 function resort_category(doc, node) {
 695         debug("resort_category: " + node);
 696
 697         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 698                 for (i = 0; i < node.childNodes.length; i++) {
 699                         if (node.childNodes[i].nodeName != "LI") { continue; }
 700
 701                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 702                                 continue;
 703                         }
 704
 705                         for (j = i+1; j < node.childNodes.length; j++) {
 706                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 707
 708                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 709                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 710
 711                                 if (cur_val > tmp_val) {
 712                                         tempnode_i = node.childNodes[i].cloneNode(true);
 713                                         tempnode_j = node.childNodes[j].cloneNode(true);
 714                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 715                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 716                                 }
 717                         }
 718
 719                 }
 720         }
 721
 722 }
 723
 724 function resort_feedlist() {
 725         debug("resort_feedlist");
 726
 727         var fd = document;
 728
 729         if (fd.getElementById("feedCatHolder")) {
 730
 731                 var feeds = fd.getElementById("feedList");
 732                 var child = feeds.firstChild;
 733
 734                 while (child) {
 735
 736                         if (child.id == "feedCatHolder") {
 737                                 resort_category(fd, child.firstChild);
 738                         }
 739
 740                         child = child.nextSibling;
 741                 }
 742
 743         } else {
 744                 resort_category(fd, fd.getElementById("feedList"));
 745         }
 746 }
 747
 748 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 749   * * @author Sundar Dorai-Raj
 750   * * Email: sdoraira@vt.edu
 751   * * This program is free software; you can redistribute it and/or
 752   * * modify it under the terms of the GNU General Public License
 753   * * as published by the Free Software Foundation; either version 2
 754   * * of the License, or (at your option) any later version,
 755   * * provided that any use properly credits the author.
 756   * * This program is distributed in the hope that it will be useful,
 757   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 758   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 759   * * GNU General Public License for more details at http://www.gnu.org * * */
 760
 761   var numbers=".0123456789";
 762   function isNumeric(x) {
 763     // is x a String or a character?
 764     if(x.length>1) {
 765       // remove negative sign
 766       x=Math.abs(x)+"";
 767       for(j=0;j<x.length;j++) {
 768         // call isNumeric recursively for each character
 769         number=isNumeric(x.substring(j,j+1));
 770         if(!number) return number;
 771       }
 772       return number;
 773     }
 774     else {
 775       // if x is number return true
 776       if(numbers.indexOf(x)>=0) return true;
 777       return false;
 778     }
 779   }
 780
 781
 782 function hideOrShowFeeds(doc, hide) {
 783
 784         debug("hideOrShowFeeds: " + doc + ", " + hide);
 785
 786         var fd = document;
 787
 788         var list = fd.getElementById("feedList");
 789
 790         if (fd.getElementById("feedCatHolder")) {
 791
 792                 var feeds = fd.getElementById("feedList");
 793                 var child = feeds.firstChild;
 794
 795                 while (child) {
 796
 797                         if (child.id == "feedCatHolder") {
 798                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 799                         }
 800
 801                         child = child.nextSibling;
 802                 }
 803
 804         } else {
 805                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 806         }
 807 }
 808
 809 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 810
 811 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 812
 813         var cat_unread = 0;
 814
 815         if (!node) {
 816                 debug("hideOrShowFeeds: passed node is null, aborting");
 817                 return;
 818         }
 819
 820 //      debug("cat: " + node.id);
 821
 822         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 823                 for (i = 0; i < node.childNodes.length; i++) {
 824                         if (node.childNodes[i].nodeName != "LI") { continue; }
 825
 826                         if (node.childNodes[i].style != undefined) {
 827
 828                                 var has_unread = (node.childNodes[i].className != "feed" &&
 829                                         node.childNodes[i].className != "label" &&
 830                                         !(!getInitParam("hide_read_shows_special") &&
 831                                                 node.childNodes[i].className == "virt") &&
 832                                         node.childNodes[i].className != "error" &&
 833                                         node.childNodes[i].className != "tag");
 834
 835 //                              debug(node.childNodes[i].id + " --> " + has_unread);
 836
 837                                 if (hide && !has_unread) {
 838                                         //node.childNodes[i].style.display = "none";
 839                                         var id = node.childNodes[i].id;
 840                                         Effect.Fade(node.childNodes[i], {duration : 0.3,
 841                                                 queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 842                                 }
 843
 844                                 if (!hide) {
 845                                         node.childNodes[i].style.display = "list-item";
 846                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 847                                 }
 848
 849                                 if (has_unread) {
 850                                         node.childNodes[i].style.display = "list-item";
 851                                         cat_unread++;
 852                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 853                                         //Effect.Highlight(node.childNodes[i]);
 854                                 }
 855                         }
 856                 }
 857         }
 858
 859 //      debug("end cat: " + node.id + " unread " + cat_unread);
 860
 861         if (cat_unread == 0) {
 862                 if (cat_node.style == undefined) {
 863                         debug("ERROR: supplied cat_node " + cat_node +
 864                                 " has no styles. WTF?");
 865                         return;
 866                 }
 867                 if (hide) {
 868                         //cat_node.style.display = "none";
 869                         Effect.Fade(cat_node, {duration : 0.3,
 870                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 871                 } else {
 872                         cat_node.style.display = "list-item";
 873                 }
 874         } else {
 875                 try {
 876                         cat_node.style.display = "list-item";
 877                 } catch (e) {
 878                         debug(e);
 879                 }
 880         }
 881
 882 //      debug("unread for category: " + cat_unread);
 883 }
 884
 885 function selectTableRow(r, do_select) {
 886         r.className = r.className.replace("Selected", "");
 887
 888         if (do_select) {
 889                 r.className = r.className + "Selected";
 890         }
 891 }
 892
 893 function selectTableRowById(elem_id, check_id, do_select) {
 894
 895         try {
 896
 897                 var row = document.getElementById(elem_id);
 898
 899                 if (row) {
 900                         selectTableRow(row, do_select);
 901                 }
 902
 903                 var check = document.getElementById(check_id);
 904
 905                 if (check) {
 906                         check.checked = do_select;
 907                 }
 908         } catch (e) {
 909                 exception_error("selectTableRowById", e);
 910         }
 911 }
 912
 913 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 914         classcheck, reset_others) {
 915
 916         var content = document.getElementById(content_id);
 917
 918         if (!content) {
 919                 alert("[selectTableRows] Element " + content_id + " not found.");
 920                 return;
 921         }
 922
 923         for (i = 0; i < content.rows.length; i++) {
 924                 if (Element.visible(content.rows[i])) {
 925                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 926
 927                                 if (content.rows[i].id.match(prefix)) {
 928                                         selectTableRow(content.rows[i], do_select);
 929
 930                                         var row_id = content.rows[i].id.replace(prefix, "");
 931                                         var check = document.getElementById(check_prefix + row_id);
 932
 933                                         if (check) {
 934                                                 check.checked = do_select;
 935                                         }
 936                                 } else if (reset_others) {
 937                                         selectTableRow(content.rows[i], false);
 938
 939                                         var row_id = content.rows[i].id.replace(prefix, "");
 940                                         var check = document.getElementById(check_prefix + row_id);
 941
 942                                         if (check) {
 943                                                 check.checked = false;
 944                                         }
 945
 946                                 }
 947                         } else if (reset_others) {
 948                                 selectTableRow(content.rows[i], false);
 949
 950                                 var row_id = content.rows[i].id.replace(prefix, "");
 951                                 var check = document.getElementById(check_prefix + row_id);
 952
 953                                 if (check) {
 954                                         check.checked = false;
 955                                 }
 956
 957                         }
 958                 }
 959         }
 960 }
 961
 962 function getSelectedTableRowIds(content_id, prefix) {
 963
 964         var content = document.getElementById(content_id);
 965
 966         if (!content) {
 967                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 968                 return;
 969         }
 970
 971         var sel_rows = new Array();
 972
 973         for (i = 0; i < content.rows.length; i++) {
 974                 if (content.rows[i].id.match(prefix) &&
 975                                 content.rows[i].className.match("Selected")) {
 976
 977                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 978                         sel_rows.push(row_id);
 979                 }
 980         }
 981
 982         return sel_rows;
 983
 984 }
 985
 986 function toggleSelectRowById(sender, id) {
 987         var row = document.getElementById(id);
 988
 989         if (sender.checked) {
 990                 if (!row.className.match("Selected")) {
 991                         row.className = row.className + "Selected";
 992                 }
 993         } else {
 994                 if (row.className.match("Selected")) {
 995                         row.className = row.className.replace("Selected", "");
 996                 }
 997         }
 998 }
 999
1000 function toggleSelectListRow(sender) {
1001         var parent_row = sender.parentNode;
1002
1003         if (sender.checked) {
1004                 if (!parent_row.className.match("Selected")) {
1005                         parent_row.className = parent_row.className + "Selected";
1006                 }
1007         } else {
1008                 if (parent_row.className.match("Selected")) {
1009                         parent_row.className = parent_row.className.replace("Selected", "");
1010                 }
1011         }
1012 }
1013
1014 function tSR(sender) {
1015         return toggleSelectRow(sender);
1016 }
1017
1018 function toggleSelectRow(sender) {
1019         var parent_row = sender.parentNode.parentNode;
1020
1021         if (sender.checked) {
1022                 if (!parent_row.className.match("Selected")) {
1023                         parent_row.className = parent_row.className + "Selected";
1024                 }
1025         } else {
1026                 if (parent_row.className.match("Selected")) {
1027                         parent_row.className = parent_row.className.replace("Selected", "");
1028                 }
1029         }
1030 }
1031
1032 function getRelativeFeedId(list, id, direction, unread_only) {
1033         var rows = list.getElementsByTagName("LI");
1034         var feeds = new Array();
1035
1036         for (var i = 0; i < rows.length; i++) {
1037                 if (rows[i].id.match("FEEDR-")) {
1038
1039                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1040
1041                                 if (!unread_only ||
1042                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1043                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1044                                 }
1045                         }
1046                 }
1047         }
1048
1049         if (!id) {
1050                 if (direction == "next") {
1051                         return feeds.shift();
1052                 } else {
1053                         return feeds.pop();
1054                 }
1055         } else {
1056                 if (direction == "next") {
1057                         var idx = feeds.indexOf(id);
1058                         if (idx != -1 && idx < feeds.length) {
1059                                 return feeds[idx+1];
1060                         } else {
1061                                 return getRelativeFeedId(list, false, direction, unread_only);
1062                         }
1063                 } else {
1064                         var idx = feeds.indexOf(id);
1065                         if (idx > 0) {
1066                                 return feeds[idx-1];
1067                         } else {
1068                                 return getRelativeFeedId(list, false, direction, unread_only);
1069                         }
1070                 }
1071
1072         }
1073 }
1074
1075 function showBlockElement(id, h_id) {
1076         var elem = document.getElementById(id);
1077
1078         if (elem) {
1079                 elem.style.display = "block";
1080
1081                 if (h_id) {
1082                         elem = document.getElementById(h_id);
1083                         if (elem) {
1084                                 elem.style.display = "none";
1085                         }
1086                 }
1087         } else {
1088                 alert("[showBlockElement] can't find element with id " + id);
1089         }
1090 }
1091
1092 function appearBlockElement_afh(effect) {
1093
1094 }
1095
1096 function checkboxToggleElement(elem, id) {
1097         if (elem.checked) {
1098                 Effect.SlideDown(id, {duration : 0.5});
1099         } else {
1100                 Effect.SlideUp(id, {duration : 0.5});
1101         }
1102 }
1103
1104 function appearBlockElement(id, h_id) {
1105
1106         try {
1107                 if (h_id) {
1108                         Effect.Fade(h_id);
1109                 }
1110                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1111         } catch (e) {
1112                 exception_error("appearBlockElement", e);
1113         }
1114
1115 }
1116
1117 function hideParentElement(e) {
1118         e.parentNode.style.display = "none";
1119 }
1120
1121 function dropboxSelect(e, v) {
1122         for (i = 0; i < e.length; i++) {
1123                 if (e[i].value == v) {
1124                         e.selectedIndex = i;
1125                         break;
1126                 }
1127         }
1128 }
1129
1130 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1131 // bugfixed just a little bit :-)
1132 function getURLParam(strParamName){
1133   var strReturn = "";
1134   var strHref = window.location.href;
1135
1136   if (strHref.indexOf("#") == strHref.length-1) {
1137                 strHref = strHref.substring(0, strHref.length-1);
1138   }
1139
1140   if ( strHref.indexOf("?") > -1 ){
1141     var strQueryString = strHref.substr(strHref.indexOf("?"));
1142     var aQueryString = strQueryString.split("&");
1143     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1144       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1145         var aParam = aQueryString[iParam].split("=");
1146         strReturn = aParam[1];
1147         break;
1148       }
1149     }
1150   }
1151   return strReturn;
1152 }
1153
1154 function leading_zero(p) {
1155         var s = String(p);
1156         if (s.length == 1) s = "0" + s;
1157         return s;
1158 }
1159
1160 function closeInfoBox(cleanup) {
1161
1162         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1163                 var overlay = document.getElementById("dialog_overlay");
1164                 if (overlay) {
1165                         overlay.style.display = "none";
1166                 }
1167         }
1168
1169         var box = document.getElementById('infoBox');
1170         var shadow = document.getElementById('infoBoxShadow');
1171
1172         if (shadow) {
1173                 shadow.style.display = "none";
1174         } else if (box) {
1175                 box.style.display = "none";
1176         }
1177
1178         if (cleanup) box.innerHTML = "&nbsp;";
1179
1180         enableHotkeys();
1181
1182         return false;
1183 }
1184
1185
1186 function displayDlg(id, param) {
1187
1188         notify_progress("Loading, please wait...", true);
1189
1190         disableHotkeys();
1191
1192         var query = "backend.php?op=dlg&id=" +
1193                 param_escape(id) + "&param=" + param_escape(param);
1194
1195         new Ajax.Request(query, {
1196                 onComplete: function (transport) {
1197                         infobox_callback2(transport);
1198                 } });
1199
1200         return false;
1201 }
1202
1203 function infobox_submit_callback2(transport) {
1204         closeInfoBox();
1205
1206         try {
1207                 // called from prefs, reload tab
1208                 if (typeof active_tab != 'undefined' && active_tab) {
1209                         selectTab(active_tab, false);
1210                 }
1211         } catch (e) { }
1212
1213         if (transport.responseText) {
1214                 notify_info(transport.responseText);
1215         }
1216 }
1217
1218 function infobox_callback2(transport) {
1219         try {
1220
1221                 debug("infobox_callback2");
1222
1223                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1224                         var overlay = document.getElementById("dialog_overlay");
1225                         if (overlay) {
1226                                 overlay.style.display = "block";
1227                         }
1228                 }
1229
1230                 var box = document.getElementById('infoBox');
1231                 var shadow = document.getElementById('infoBoxShadow');
1232                 if (box) {
1233
1234                         box.innerHTML=transport.responseText;
1235                         if (shadow) {
1236                                 shadow.style.display = "block";
1237                         } else {
1238                                 box.style.display = "block";
1239                         }
1240                 }
1241
1242                 /* FIXME this needs to be moved out somewhere */
1243
1244                 if (document.getElementById("tags_choices")) {
1245                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1246                                 "backend.php?op=rpc&subop=completeTags",
1247                                 { tokens: ',', paramName: "search" });
1248                 }
1249
1250                 disableHotkeys();
1251
1252                 notify("");
1253         } catch (e) {
1254                 exception_error("infobox_callback2", e);
1255         }
1256 }
1257
1258 function createFilter() {
1259
1260         try {
1261
1262                 var form = document.forms['filter_add_form'];
1263                 var reg_exp = form.reg_exp.value;
1264
1265                 if (reg_exp == "") {
1266                         alert(__("Can't add filter: nothing to match on."));
1267                         return false;
1268                 }
1269
1270                 var query = Form.serialize("filter_add_form");
1271
1272                 // we can be called from some other tab in Prefs
1273                 if (typeof active_tab != 'undefined' && active_tab) {
1274                         active_tab = "filterConfig";
1275                 }
1276
1277                 new Ajax.Request("backend.php?" + query, {
1278                         onComplete: function (transport) {
1279                                 infobox_submit_callback2(transport);
1280                         } });
1281
1282                 return true;
1283
1284         } catch (e) {
1285                 exception_error("createFilter", e);
1286         }
1287 }
1288
1289 function toggleSubmitNotEmpty(e, submit_id) {
1290         try {
1291                 document.getElementById(submit_id).disabled = (e.value == "")
1292         } catch (e) {
1293                 exception_error("toggleSubmitNotEmpty", e);
1294         }
1295 }
1296
1297 function isValidURL(s) {
1298         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1299 }
1300
1301 function subscribeToFeed() {
1302
1303         var form = document.forms['feed_add_form'];
1304         var feed_url = form.feed_url.value;
1305
1306         if (feed_url == "") {
1307                 alert(__("Can't subscribe: no feed URL given."));
1308                 return false;
1309         }
1310
1311         notify_progress(__("Subscribing to feed..."), true);
1312
1313         closeInfoBox();
1314
1315         var feeds_doc = document;
1316
1317 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1318
1319         var query = Form.serialize("feed_add_form");
1320
1321         debug("subscribe q: " + query);
1322
1323         new Ajax.Request("backend.php", {
1324                 parameters: query,
1325                 onComplete: function(transport) {
1326                         dlg_frefresh_callback(transport);
1327                 } });
1328
1329         return false;
1330 }
1331
1332 function filterCR(e, f)
1333 {
1334      var key;
1335
1336      if(window.event)
1337           key = window.event.keyCode;     //IE
1338      else
1339           key = e.which;     //firefox
1340
1341         if (key == 13) {
1342                 if (typeof f != 'undefined') {
1343                         f();
1344                         return false;
1345                 } else {
1346                         return false;
1347                 }
1348         } else {
1349                 return true;
1350         }
1351 }
1352
1353 function getMainContext() {
1354         return this.window;
1355 }
1356
1357 function getFeedsContext() {
1358         return this.window;
1359 }
1360
1361 function getContentContext() {
1362         return this.window;
1363 }
1364
1365 function getHeadlinesContext() {
1366         return this.window;
1367 }
1368
1369 var debug_last_class = "even";
1370
1371 function debug(msg) {
1372
1373         if (debug_last_class == "even") {
1374                 debug_last_class = "odd";
1375         } else {
1376                 debug_last_class = "even";
1377         }
1378
1379         var c = document.getElementById('debug_output');
1380         if (c && Element.visible(c)) {
1381                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1382                         c.removeChild(c.lastChild);
1383                 }
1384
1385                 var d = new Date();
1386                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1387                         ":" + leading_zero(d.getSeconds());
1388                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1389                         msg + "</li>" + c.innerHTML;
1390         }
1391 }
1392
1393 function getInitParam(key) {
1394         return init_params[key];
1395 }
1396
1397 function storeInitParam(key, value) {
1398         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1399         init_params[key] = value;
1400 }
1401
1402 function fatalError(code, message) {
1403         try {
1404
1405                 if (code == 6) {
1406                         window.location.href = "tt-rss.php";
1407                 } else if (code == 5) {
1408                         window.location.href = "update.php";
1409                 } else {
1410                         var fe = document.getElementById("fatal_error");
1411                         var fc = document.getElementById("fatal_error_msg");
1412
1413                         if (message == "") message = "Unknown error";
1414
1415                         fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
1416
1417                         fe.style.display = "block";
1418                 }
1419
1420         } catch (e) {
1421                 exception_error("fatalError", e);
1422         }
1423 }
1424
1425 function getFeedName(id, is_cat) {
1426         var d = getFeedsContext().document;
1427
1428         var e;
1429
1430         if (is_cat) {
1431                 e = d.getElementById("FCATN-" + id);
1432         } else {
1433                 e = d.getElementById("FEEDN-" + id);
1434         }
1435         if (e) {
1436                 return e.innerHTML.stripTags();
1437         } else {
1438                 return null;
1439         }
1440 }
1441
1442 function viewContentUrl(url) {
1443         getContentContext().location = url;
1444 }
1445
1446 function filterDlgCheckAction(sender) {
1447
1448         try {
1449
1450                 var action = sender[sender.selectedIndex].value;
1451
1452                 var form = document.forms["filter_add_form"];
1453
1454                 if (!form) {
1455                         form = document.forms["filter_edit_form"];
1456                 }
1457
1458                 if (!form) {
1459                         debug("filterDlgCheckAction: can't find form!");
1460                         return;
1461                 }
1462
1463                 var action_param = form.action_param;
1464
1465                 if (!action_param) {
1466                         debug("filterDlgCheckAction: can't find action param!");
1467                         return;
1468                 }
1469
1470                 // if selected action supports parameters, enable params field
1471                 if (action == 4 || action == 6) {
1472                         action_param.disabled = false;
1473                 } else {
1474                         action_param.disabled = true;
1475                 }
1476
1477         } catch (e) {
1478                 exception_error("filterDlgCheckAction", e);
1479         }
1480
1481 }
1482
1483 function explainError(code) {
1484         return displayDlg("explainError", code);
1485 }
1486
1487 // this only searches loaded headlines list, not in CDM
1488 function getRelativePostIds(id, limit) {
1489
1490         if (!limit) limit = 3;
1491
1492         debug("getRelativePostIds: " + id + " limit=" + limit);
1493
1494         var ids = new Array();
1495         var container = document.getElementById("headlinesList");
1496
1497         if (container) {
1498                 var rows = container.rows;
1499
1500                 for (var i = 0; i < rows.length; i++) {
1501                         var r_id = rows[i].id.replace("RROW-", "");
1502
1503                         if (r_id == id) {
1504                                 for (var k = 1; k <= limit; k++) {
1505                                         var nid = false;
1506
1507                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1508                                         if (nid) ids.push(nid);
1509
1510                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1511                                         if (nid) ids.push(nid);
1512                                 }
1513
1514                                 return ids;
1515                         }
1516                 }
1517         }
1518
1519         return false;
1520 }
1521
1522 function openArticleInNewWindow(id) {
1523         try {
1524                 debug("openArticleInNewWindow: " + id);
1525
1526                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1527                 var wname = "ttrss_article_" + id;
1528
1529                 debug(query + " " + wname);
1530
1531                 var w = window.open("", wname);
1532
1533                 if (!w) notify_error("Failed to open window for the article");
1534
1535                 new Ajax.Request(query, {
1536                         onComplete: function(transport) {
1537                                 open_article_callback(transport);
1538                         } });
1539
1540
1541         } catch (e) {
1542                 exception_error("openArticleInNewWindow", e);
1543         }
1544 }
1545
1546 /* http://textsnippets.com/posts/show/835 */
1547
1548 Position.GetWindowSize = function(w) {
1549         w = w ? w : window;
1550         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1551         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1552         return [width, height]
1553 }
1554
1555 /* http://textsnippets.com/posts/show/836 */
1556
1557 Position.Center = function(element, parent) {
1558         var w, h, pw, ph;
1559         var d = Element.getDimensions(element);
1560         w = d.width;
1561         h = d.height;
1562         Position.prepare();
1563         if (!parent) {
1564                 var ws = Position.GetWindowSize();
1565                 pw = ws[0];
1566                 ph = ws[1];
1567         } else {
1568                 pw = parent.offsetWidth;
1569                 ph = parent.offsetHeight;
1570         }
1571         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1572         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1573 }
1574
1575
1576 function labeltest_callback(transport) {
1577         try {
1578                 var container = document.getElementById('label_test_result');
1579
1580                 container.innerHTML = transport.responseText;
1581                 if (!Element.visible(container)) {
1582                         Effect.SlideDown(container, { duration : 0.5 });
1583                 }
1584
1585                 notify("");
1586         } catch (e) {
1587                 exception_error("labeltest_callback", e);
1588         }
1589 }
1590
1591 function labelTest() {
1592
1593         try {
1594                 var container = document.getElementById('label_test_result');
1595
1596                 var form = document.forms['label_edit_form'];
1597
1598                 var sql_exp = form.sql_exp.value;
1599                 var description = form.description.value;
1600
1601                 notify_progress("Loading, please wait...");
1602
1603                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1604                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1605
1606                 new Ajax.Request(query, {
1607                         onComplete: function (transport) {
1608                                 labeltest_callback(transport);
1609                         } });
1610
1611                 return false;
1612
1613         } catch (e) {
1614                 exception_error("labelTest", e);
1615         }
1616 }
1617
1618 function isCdmMode() {
1619         return !document.getElementById("headlinesList");
1620 }
1621
1622 function getSelectedArticleIds2() {
1623         var rows = new Array();
1624         var cdm_mode = isCdmMode();
1625
1626         if (cdm_mode) {
1627                 rows = cdmGetSelectedArticles();
1628         } else {
1629                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1630         }
1631
1632         var ids = new Array();
1633
1634         for (var i = 0; i < rows.length; i++) {
1635                 var chk = document.getElementById("RCHK-" + rows[i]);
1636                 if (chk && chk.checked) {
1637                         ids.push(rows[i]);
1638                 }
1639         }
1640
1641         return ids;
1642 }
1643
1644 function displayHelpInfobox(topic_id) {
1645
1646         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1647
1648         var w = window.open(url, "ttrss_help",
1649                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1650
1651         return false;
1652 }
1653
1654 function focus_element(id) {
1655         try {
1656                 var e = document.getElementById(id);
1657                 if (e) e.focus();
1658         } catch (e) {
1659                 exception_error("focus_element", e);
1660         }
1661         return false;
1662 }
1663
1664 function loading_set_progress(p) {
1665         try {
1666                 if (p < last_progress_point || !Element.visible("overlay")) return;
1667
1668                 debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
1669
1670                 var o = document.getElementById("l_progress_i");
1671
1672 //              o.style.width = (p * 2) + "px";
1673
1674                 new Effect.Scale(o, p, {
1675                         scaleY : false,
1676                         scaleFrom : last_progress_point,
1677                         scaleMode: { originalWidth : 200 },
1678                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1679
1680                 last_progress_point = p;
1681
1682         } catch (e) {
1683                 exception_error("loading_set_progress", e);
1684         }
1685 }
1686
1687 function remove_splash() {
1688         if (Element.visible("overlay")) {
1689                 debug("about to remove splash, OMG!");
1690                 Element.hide("overlay");
1691                 debug("removed splash!");
1692         }
1693 }