functions.js

   1 var hotkeys_enabled = true;
   2 var notify_silent = false;
   3 var last_progress_point = 0;
   4 var async_counters_work = false;
   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_opera() {
  15         return window.opera;
  16 }
  17
  18 function exception_error(location, e, ext_info) {
  19         var msg = format_exception_error(location, e);
  20
  21         if (!ext_info) ext_info = "N/A";
  22
  23         disableHotkeys();
  24
  25         try {
  26
  27                 var ebc = $("xebContent");
  28
  29                 if (ebc) {
  30
  31                         Element.show("dialog_overlay");
  32                         Element.show("errorBoxShadow");
  33
  34                         if (ext_info) {
  35                                 if (ext_info.responseText) {
  36                                         ext_info = ext_info.responseText;
  37                                 }
  38                         }
  39
  40                         ebc.innerHTML =
  41                                 "<div><b>Error message:</b></div>" +
  42                                 "<pre>" + msg + "</pre>" +
  43                                 "<div><b>Additional information:</b></div>" +
  44                                 "<textarea readonly=\"1\">" + ext_info + "</textarea>";
  45
  46                 } else {
  47                         alert(msg);
  48                 }
  49
  50         } catch (e) {
  51                 alert(msg);
  52
  53         }
  54
  55 }
  56
  57 function format_exception_error(location, e) {
  58         var msg;
  59
  60         if (e.fileName) {
  61                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  62
  63                 msg = "Exception: " + e.name + ", " + e.message +
  64                         "\nFunction: " + location + "()" +
  65                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  66
  67         } else if (e.description) {
  68                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
  69         } else {
  70                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  71         }
  72
  73         debug("<b>EXCEPTION: " + msg + "</b>");
  74
  75         return msg;
  76 }
  77
  78
  79 function disableHotkeys() {
  80         hotkeys_enabled = false;
  81 }
  82
  83 function enableHotkeys() {
  84         hotkeys_enabled = true;
  85 }
  86
  87 function param_escape(arg) {
  88         if (typeof encodeURIComponent != 'undefined')
  89                 return encodeURIComponent(arg);
  90         else
  91                 return escape(arg);
  92 }
  93
  94 function param_unescape(arg) {
  95         if (typeof decodeURIComponent != 'undefined')
  96                 return decodeURIComponent(arg);
  97         else
  98                 return unescape(arg);
  99 }
 100
 101 function delay(gap) {
 102         var then,now;
 103         then=new Date().getTime();
 104         now=then;
 105         while((now-then)<gap) {
 106                 now=new Date().getTime();
 107         }
 108 }
 109
 110 var notify_hide_timerid = false;
 111
 112 function hide_notify() {
 113         var n = $("notify");
 114         if (n) {
 115                 n.style.display = "none";
 116         }
 117 }
 118
 119 function notify_silent_next() {
 120         notify_silent = true;
 121 }
 122
 123 function notify_real(msg, no_hide, n_type) {
 124
 125         if (notify_silent) {
 126                 notify_silent = false;
 127                 return;
 128         }
 129
 130         var n = $("notify");
 131         var nb = $("notify_body");
 132
 133         if (!n || !nb) return;
 134
 135         if (notify_hide_timerid) {
 136                 window.clearTimeout(notify_hide_timerid);
 137         }
 138
 139         if (msg == "") {
 140                 if (n.style.display == "block") {
 141                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 142                 }
 143                 return;
 144         } else {
 145                 n.style.display = "block";
 146         }
 147
 148         /* types:
 149
 150                 1 - generic
 151                 2 - progress
 152                 3 - error
 153                 4 - info
 154
 155         */
 156
 157         if (typeof __ != 'undefined') {
 158                 msg = __(msg);
 159         }
 160
 161         if (n_type == 1) {
 162                 n.className = "notify";
 163         } else if (n_type == 2) {
 164                 n.className = "notifyProgress";
 165                 msg = "<img src='"+getInitParam("sign_progress")+"'> " + msg;
 166         } else if (n_type == 3) {
 167                 n.className = "notifyError";
 168                 msg = "<img src='"+getInitParam("sign_excl")+"'> " + msg;
 169         } else if (n_type == 4) {
 170                 n.className = "notifyInfo";
 171                 msg = "<img src='"+getInitParam("sign_info")+"'> " + msg;
 172         }
 173
 174 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 175
 176         nb.innerHTML = msg;
 177
 178         if (!no_hide) {
 179                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 180         }
 181 }
 182
 183 function notify(msg, no_hide) {
 184         notify_real(msg, no_hide, 1);
 185 }
 186
 187 function notify_progress(msg, no_hide) {
 188         notify_real(msg, no_hide, 2);
 189 }
 190
 191 function notify_error(msg, no_hide) {
 192         notify_real(msg, no_hide, 3);
 193
 194 }
 195
 196 function notify_info(msg, no_hide) {
 197         notify_real(msg, no_hide, 4);
 198 }
 199
 200 function printLockingError() {
 201         notify_info("Please wait until operation finishes.");
 202 }
 203
 204 function cleanSelected(element) {
 205         var content = $(element);
 206
 207         for (i = 0; i < content.rows.length; i++) {
 208                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 209         }
 210 }
 211
 212 function getVisibleUnreadHeadlines() {
 213         var content = $("headlinesList");
 214
 215         var rows = new Array();
 216
 217         if (!content) return rows;
 218
 219         for (i = 0; i < content.rows.length; i++) {
 220                 var row_id = content.rows[i].id.replace("RROW-", "");
 221                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 222                                 rows.push(row_id);
 223                 }
 224         }
 225         return rows;
 226 }
 227
 228 function getVisibleHeadlineIds() {
 229
 230         var content = $("headlinesList");
 231
 232         var rows = new Array();
 233
 234         if (!content) return rows;
 235
 236         for (i = 0; i < content.rows.length; i++) {
 237                 var row_id = content.rows[i].id.replace("RROW-", "");
 238                 if (row_id.length > 0) {
 239                                 rows.push(row_id);
 240                 }
 241         }
 242         return rows;
 243 }
 244
 245 function getFirstVisibleHeadlineId() {
 246         if (isCdmMode()) {
 247                 var rows = cdmGetVisibleArticles();
 248                 return rows[0];
 249         } else {
 250                 var rows = getVisibleHeadlineIds();
 251                 return rows[0];
 252         }
 253 }
 254
 255 function getLastVisibleHeadlineId() {
 256         if (isCdmMode()) {
 257                 var rows = cdmGetVisibleArticles();
 258                 return rows[rows.length-1];
 259         } else {
 260                 var rows = getVisibleHeadlineIds();
 261                 return rows[rows.length-1];
 262         }
 263 }
 264
 265 function markHeadline(id) {
 266         var row = $("RROW-" + id);
 267         if (row) {
 268                 var is_active = false;
 269
 270                 if (row.className.match("Active")) {
 271                         is_active = true;
 272                 }
 273                 row.className = row.className.replace("Selected", "");
 274                 row.className = row.className.replace("Active", "");
 275                 row.className = row.className.replace("Insensitive", "");
 276
 277                 if (is_active) {
 278                         row.className = row.className = "Active";
 279                 }
 280
 281                 var check = $("RCHK-" + id);
 282
 283                 if (check) {
 284                         check.checked = true;
 285                 }
 286
 287                 row.className = row.className + "Selected";
 288
 289         }
 290 }
 291
 292 function getFeedIds() {
 293         var content = $("feedsList");
 294
 295         var rows = new Array();
 296
 297         for (i = 0; i < content.rows.length; i++) {
 298                 var id = content.rows[i].id.replace("FEEDR-", "");
 299                 if (id.length > 0) {
 300                         rows.push(id);
 301                 }
 302         }
 303
 304         return rows;
 305 }
 306
 307 function setCookie(name, value, lifetime, path, domain, secure) {
 308
 309         var d = false;
 310
 311         if (lifetime) {
 312                 d = new Date();
 313                 d.setTime(d.getTime() + (lifetime * 1000));
 314         }
 315
 316         debug("setCookie: " + name + " => " + value + ": " + d);
 317
 318         int_setCookie(name, value, d, path, domain, secure);
 319
 320 }
 321
 322 function int_setCookie(name, value, expires, path, domain, secure) {
 323         document.cookie= name + "=" + escape(value) +
 324                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 325                 ((path) ? "; path=" + path : "") +
 326                 ((domain) ? "; domain=" + domain : "") +
 327                 ((secure) ? "; secure" : "");
 328 }
 329
 330 function delCookie(name, path, domain) {
 331         if (getCookie(name)) {
 332                 document.cookie = name + "=" +
 333                 ((path) ? ";path=" + path : "") +
 334                 ((domain) ? ";domain=" + domain : "" ) +
 335                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 336         }
 337 }
 338
 339
 340 function getCookie(name) {
 341
 342         var dc = document.cookie;
 343         var prefix = name + "=";
 344         var begin = dc.indexOf("; " + prefix);
 345         if (begin == -1) {
 346             begin = dc.indexOf(prefix);
 347             if (begin != 0) return null;
 348         }
 349         else {
 350             begin += 2;
 351         }
 352         var end = document.cookie.indexOf(";", begin);
 353         if (end == -1) {
 354             end = dc.length;
 355         }
 356         return unescape(dc.substring(begin + prefix.length, end));
 357 }
 358
 359 function gotoPreferences() {
 360         document.location.href = "prefs.php";
 361 }
 362
 363 function gotoMain() {
 364         document.location.href = "tt-rss.php";
 365 }
 366
 367 function gotoExportOpml() {
 368         document.location.href = "opml.php?op=Export";
 369 }
 370
 371 function parse_counters(reply, scheduled_call) {
 372         try {
 373
 374                 var feeds_found = 0;
 375
 376                 var elems = reply.getElementsByTagName("counter");
 377
 378                 for (var l = 0; l < elems.length; l++) {
 379
 380                         var id = elems[l].getAttribute("id");
 381                         var t = elems[l].getAttribute("type");
 382                         var ctr = elems[l].getAttribute("counter");
 383                         var error = elems[l].getAttribute("error");
 384                         var has_img = elems[l].getAttribute("hi");
 385                         var updated = elems[l].getAttribute("updated");
 386                         var title = elems[l].getAttribute("title");
 387                         var xmsg = elems[l].getAttribute("xmsg");
 388
 389                         if (id == "global-unread") {
 390
 391                                 if (ctr > global_unread) {
 392                                         offlineDownloadStart(1);
 393                                 }
 394
 395                                 global_unread = ctr;
 396                                 updateTitle();
 397                                 continue;
 398                         }
 399
 400                         if (id == "subscribed-feeds") {
 401                                 feeds_found = ctr;
 402                                 continue;
 403                         }
 404
 405                         if (t == "category") {
 406                                 var catctr = $("FCATCTR-" + id);
 407                                 if (catctr) {
 408                                         catctr.innerHTML = "(" + ctr + ")";
 409                                         if (ctr > 0) {
 410                                                 catctr.className = "catCtrHasUnread";
 411                                         } else {
 412                                                 catctr.className = "catCtrNoUnread";
 413                                         }
 414                                 }
 415                                 continue;
 416                         }
 417
 418                         var feedctr = $("FEEDCTR-" + id);
 419                         var feedu = $("FEEDU-" + id);
 420                         var feedr = $("FEEDR-" + id);
 421                         var feed_img = $("FIMG-" + id);
 422                         var feedlink = $("FEEDL-" + id);
 423                         var feedupd = $("FLUPD-" + id);
 424
 425                         if (updated && feedlink) {
 426                                 if (error) {
 427                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 428                                 } else {
 429                                         feedlink.title = "Updated: " + updated;
 430                                 }
 431                         }
 432
 433                         if (feedupd) {
 434                                 if (!updated) updated = "";
 435
 436                                 if (error) {
 437                                         if (xmsg) {
 438                                                 feedupd.innerHTML = updated + " " + xmsg + " (Error)";
 439                                         } else {
 440                                                 feedupd.innerHTML = updated + " (Error)";
 441                                         }
 442                                 } else {
 443                                         if (xmsg) {
 444                                                 feedupd.innerHTML = updated + " " + xmsg;
 445                                         } else {
 446                                                 feedupd.innerHTML = updated;
 447                                         }
 448                                 }
 449                         }
 450
 451                         if (has_img && feed_img) {
 452                                 if (!feed_img.src.match(id + ".ico")) {
 453                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 454                                 }
 455                         }
 456
 457                         if (feedlink && title) {
 458                                 feedlink.innerHTML = title;
 459                         }
 460
 461                         if (feedctr && feedu && feedr) {
 462
 463                                 if (parseInt(ctr) > 0 &&
 464                                                 parseInt(feedu.innerHTML) < parseInt(ctr) &&
 465                                                 id == getActiveFeedId() && scheduled_call) {
 466
 467                                         displayNewContentPrompt(id);
 468                                 }
 469
 470                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 471
 472                                 feedu.innerHTML = ctr;
 473
 474                                 if (error) {
 475                                         feedr.className = feedr.className.replace("feed", "error");
 476                                 } else if (id > 0) {
 477                                         feedr.className = feedr.className.replace("error", "feed");
 478                                 }
 479
 480                                 if (ctr > 0) {
 481                                         feedctr.className = "feedCtrHasUnread";
 482                                         if (!feedr.className.match("Unread")) {
 483                                                 var is_selected = feedr.className.match("Selected");
 484
 485                                                 feedr.className = feedr.className.replace("Selected", "");
 486                                                 feedr.className = feedr.className.replace("Unread", "");
 487
 488                                                 feedr.className = feedr.className + "Unread";
 489
 490                                                 if (is_selected) {
 491                                                         feedr.className = feedr.className + "Selected";
 492                                                 }
 493
 494                                         }
 495
 496                                         if (row_needs_hl &&
 497                                                         !getInitParam("theme_options").match('no_highlights')) {
 498                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 499                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 500
 501                                                 cache_invalidate("F:" + id);
 502                                         }
 503                                 } else {
 504                                         feedctr.className = "feedCtrNoUnread";
 505                                         feedr.className = feedr.className.replace("Unread", "");
 506                                 }
 507                         }
 508                 }
 509
 510                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 511
 512                 var feeds_stored = number_of_feeds;
 513
 514                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 515
 516                 if (feeds_stored != feeds_found) {
 517                         number_of_feeds = feeds_found;
 518
 519                         if (feeds_stored != 0 && feeds_found != 0) {
 520                                 debug("Subscribed feed number changed, refreshing feedlist");
 521                                 setTimeout('updateFeedList(false, false)', 50);
 522                         }
 523                 } else {
 524 /*                      var fl = $("feeds-frame").innerHTML;
 525                         if (fl) {
 526                                 cache_invalidate("FEEDLIST");
 527                                 cache_inject("FEEDLIST", fl, getInitParam("num_feeds"));
 528                         } */
 529                 }
 530
 531         } catch (e) {
 532                 exception_error("parse_counters", e);
 533         }
 534 }
 535
 536 function parse_counters_reply(transport, scheduled_call) {
 537
 538         if (!transport.responseXML) {
 539                 notify_error("Backend did not return valid XML", true);
 540                 return;
 541         }
 542
 543         var reply = transport.responseXML.firstChild;
 544
 545         if (!reply) {
 546                 notify_error("Backend did not return expected XML object", true);
 547                 updateTitle("");
 548                 return;
 549         }
 550
 551         if (!transport_error_check(transport)) return;
 552
 553         var counters = reply.getElementsByTagName("counters")[0];
 554
 555         parse_counters(counters, scheduled_call);
 556
 557         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 558
 559         parse_runtime_info(runtime_info);
 560
 561         if (feedsSortByUnread()) {
 562                 resort_feedlist();
 563         }
 564
 565         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 566
 567 }
 568
 569 function all_counters_callback2(transport, async_call) {
 570         try {
 571                 if (async_call) async_counters_work = true;
 572
 573                 if (offline_mode) return;
 574
 575                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 576                 parse_counters_reply(transport);
 577                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 578
 579         } catch (e) {
 580                 exception_error("all_counters_callback2", e, transport);
 581         }
 582 }
 583
 584 function get_feed_unread(id) {
 585         try {
 586                 return parseInt($("FEEDU-" + id).innerHTML);
 587         } catch (e) {
 588                 return -1;
 589         }
 590 }
 591
 592 function get_cat_unread(id) {
 593         try {
 594                 var ctr = $("FCATCTR-" + id).innerHTML;
 595                 ctr = ctr.replace("(", "");
 596                 ctr = ctr.replace(")", "");
 597                 return parseInt(ctr);
 598         } catch (e) {
 599                 return -1;
 600         }
 601 }
 602
 603 function get_feed_entry_unread(elem) {
 604
 605         var id = elem.id.replace("FEEDR-", "");
 606
 607         if (id <= 0) {
 608                 return -1;
 609         }
 610
 611         try {
 612                 return parseInt($("FEEDU-" + id).innerHTML);
 613         } catch (e) {
 614                 return -1;
 615         }
 616 }
 617
 618 function get_feed_entry_name(elem) {
 619         var id = elem.id.replace("FEEDR-", "");
 620         return getFeedName(id);
 621 }
 622
 623
 624 function resort_category(node, cat_mode) {
 625
 626         try {
 627
 628                 debug("resort_category: " + node + " CM=" + cat_mode);
 629
 630                 var by_unread = feedsSortByUnread();
 631
 632                 var list = node.getElementsByTagName("LI");
 633
 634                 for (i = 0; i < list.length; i++) {
 635
 636                         for (j = i+1; j < list.length; j++) {
 637
 638                                 var tmp_val = get_feed_entry_unread(list[i]);
 639                                 var cur_val = get_feed_entry_unread(list[j]);
 640
 641                                 var tmp_name = get_feed_entry_name(list[i]);
 642                                 var cur_name = get_feed_entry_name(list[j]);
 643
 644                                 var valid_pair = cat_mode || (list[i].id.match(/FEEDR-[0-9]/) &&
 645                                                 list[j].id.match(/FEEDR-[0-9]/));
 646
 647                                 if (valid_pair && ((by_unread && (cur_val > tmp_val)) || (!by_unread && (cur_name < tmp_name)))) {
 648                                         tempnode_i = list[i].cloneNode(true);
 649                                         tempnode_j = list[j].cloneNode(true);
 650                                         node.replaceChild(tempnode_i, list[j]);
 651                                         node.replaceChild(tempnode_j, list[i]);
 652                                 }
 653                         }
 654                 }
 655
 656         } catch (e) {
 657                 exception_error("resort_category", e);
 658         }
 659
 660 }
 661
 662 function resort_feedlist() {
 663         debug("resort_feedlist");
 664
 665         if ($("FCATLIST--1")) {
 666
 667                 var lists = document.getElementsByTagName("UL");
 668
 669                 for (var i = 0; i < lists.length; i++) {
 670                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 671                                 resort_category(lists[i], true);
 672                         }
 673                 }
 674
 675         } else {
 676                 resort_category($("feedList"), false);
 677         }
 678 }
 679
 680 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 681   * * @author Sundar Dorai-Raj
 682   * * Email: sdoraira@vt.edu
 683   * * This program is free software; you can redistribute it and/or
 684   * * modify it under the terms of the GNU General Public License
 685   * * as published by the Free Software Foundation; either version 2
 686   * * of the License, or (at your option) any later version,
 687   * * provided that any use properly credits the author.
 688   * * This program is distributed in the hope that it will be useful,
 689   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 690   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 691   * * GNU General Public License for more details at http://www.gnu.org * * */
 692
 693   var numbers=".0123456789";
 694   function isNumeric(x) {
 695     // is x a String or a character?
 696     if(x.length>1) {
 697       // remove negative sign
 698       x=Math.abs(x)+"";
 699       for(j=0;j<x.length;j++) {
 700         // call isNumeric recursively for each character
 701         number=isNumeric(x.substring(j,j+1));
 702         if(!number) return number;
 703       }
 704       return number;
 705     }
 706     else {
 707       // if x is number return true
 708       if(numbers.indexOf(x)>=0) return true;
 709       return false;
 710     }
 711   }
 712
 713
 714 function hideOrShowFeeds(hide) {
 715
 716         try {
 717
 718         debug("hideOrShowFeeds: " + hide);
 719
 720         if ($("FCATLIST--1")) {
 721
 722                 var lists = document.getElementsByTagName("UL");
 723
 724                 for (var i = 0; i < lists.length; i++) {
 725                         if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 726
 727                                 var id = lists[i].id.replace("FCATLIST-", "");
 728                                 hideOrShowFeedsCategory(id, hide);
 729                         }
 730                 }
 731
 732         } else {
 733                 hideOrShowFeedsCategory(null, hide);
 734         }
 735
 736         } catch (e) {
 737                 exception_error("hideOrShowFeeds", e);
 738         }
 739 }
 740
 741 function hideOrShowFeedsCategory(id, hide) {
 742
 743         try {
 744
 745                 var node = null;
 746                 var cat_node = null;
 747
 748                 if (id) {
 749                         node = $("FCATLIST-" + id);
 750                         cat_node = $("FCAT-" + id);
 751                 } else {
 752                         node = $("feedList"); // no categories
 753                 }
 754
 755         //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 756
 757                 var cat_unread = 0;
 758
 759                 if (!node) {
 760                         debug("hideOrShowFeeds: passed node is null, aborting");
 761                         return;
 762                 }
 763
 764         //      debug("cat: " + node.id);
 765
 766                 if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 767                         for (i = 0; i < node.childNodes.length; i++) {
 768                                 if (node.childNodes[i].nodeName != "LI") { continue; }
 769
 770                                 if (node.childNodes[i].style != undefined) {
 771
 772                                         var has_unread = (node.childNodes[i].className != "feed" &&
 773                                                 node.childNodes[i].className != "label" &&
 774                                                 !(!getInitParam("hide_read_shows_special") &&
 775                                                         node.childNodes[i].className == "virt") &&
 776                                                 node.childNodes[i].className != "error" &&
 777                                                 node.childNodes[i].className != "tag");
 778
 779         //                              debug(node.childNodes[i].id + " --> " + has_unread);
 780
 781                                         if (hide && !has_unread) {
 782                                                 //node.childNodes[i].style.display = "none";
 783                                                 var id = node.childNodes[i].id;
 784                                                 Effect.Fade(node.childNodes[i], {duration : 0.3,
 785                                                         queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 786                                         }
 787
 788                                         if (!hide) {
 789                                                 node.childNodes[i].style.display = "list-item";
 790                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 791                                         }
 792
 793                                         if (has_unread) {
 794                                                 node.childNodes[i].style.display = "list-item";
 795                                                 cat_unread++;
 796                                                 //Effect.Appear(node.childNodes[i], {duration : 0.3});
 797                                                 //Effect.Highlight(node.childNodes[i]);
 798                                         }
 799                                 }
 800                         }
 801                 }
 802
 803         //      debug("end cat: " + node.id + " unread " + cat_unread);
 804
 805                 if (cat_node) {
 806
 807                         if (cat_unread == 0) {
 808                                 if (cat_node.style == undefined) {
 809                                         debug("ERROR: supplied cat_node " + cat_node +
 810                                                 " has no styles. WTF?");
 811                                         return;
 812                                 }
 813                                 if (hide) {
 814                                         //cat_node.style.display = "none";
 815                                         Effect.Fade(cat_node, {duration : 0.3,
 816                                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 817                                 } else {
 818                                         cat_node.style.display = "list-item";
 819                                 }
 820                         } else {
 821                                 try {
 822                                         cat_node.style.display = "list-item";
 823                                 } catch (e) {
 824                                         debug(e);
 825                                 }
 826                         }
 827                 }
 828
 829 //      debug("unread for category: " + cat_unread);
 830
 831         } catch (e) {
 832                 exception_error("hideOrShowFeedsCategory", e);
 833         }
 834 }
 835
 836 function selectTableRow(r, do_select) {
 837         r.className = r.className.replace("Selected", "");
 838
 839         if (do_select) {
 840                 r.className = r.className + "Selected";
 841         }
 842 }
 843
 844 function selectTableRowById(elem_id, check_id, do_select) {
 845
 846         try {
 847
 848                 var row = $(elem_id);
 849
 850                 if (row) {
 851                         selectTableRow(row, do_select);
 852                 }
 853
 854                 var check = $(check_id);
 855
 856                 if (check) {
 857                         check.checked = do_select;
 858                 }
 859         } catch (e) {
 860                 exception_error("selectTableRowById", e);
 861         }
 862 }
 863
 864 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 865         classcheck, reset_others) {
 866
 867         var content = $(content_id);
 868
 869         if (!content) {
 870                 alert("[selectTableRows] Element " + content_id + " not found.");
 871                 return;
 872         }
 873
 874         for (i = 0; i < content.rows.length; i++) {
 875                 if (Element.visible(content.rows[i])) {
 876                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 877
 878                                 if (content.rows[i].id.match(prefix)) {
 879                                         selectTableRow(content.rows[i], do_select);
 880
 881                                         var row_id = content.rows[i].id.replace(prefix, "");
 882                                         var check = $(check_prefix + row_id);
 883
 884                                         if (check) {
 885                                                 check.checked = do_select;
 886                                         }
 887                                 } else if (reset_others) {
 888                                         selectTableRow(content.rows[i], false);
 889
 890                                         var row_id = content.rows[i].id.replace(prefix, "");
 891                                         var check = $(check_prefix + row_id);
 892
 893                                         if (check) {
 894                                                 check.checked = false;
 895                                         }
 896
 897                                 }
 898                         } else if (reset_others) {
 899                                 selectTableRow(content.rows[i], false);
 900
 901                                 var row_id = content.rows[i].id.replace(prefix, "");
 902                                 var check = $(check_prefix + row_id);
 903
 904                                 if (check) {
 905                                         check.checked = false;
 906                                 }
 907
 908                         }
 909                 }
 910         }
 911 }
 912
 913 function getSelectedTableRowIds(content_id, prefix) {
 914
 915         var content = $(content_id);
 916
 917         if (!content) {
 918                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 919                 return;
 920         }
 921
 922         var sel_rows = new Array();
 923
 924         for (i = 0; i < content.rows.length; i++) {
 925                 if (content.rows[i].id.match(prefix) &&
 926                                 content.rows[i].className.match("Selected")) {
 927
 928                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 929                         sel_rows.push(row_id);
 930                 }
 931         }
 932
 933         return sel_rows;
 934
 935 }
 936
 937 function toggleSelectRowById(sender, id) {
 938         var row = $(id);
 939
 940         if (sender.checked) {
 941                 if (!row.className.match("Selected")) {
 942                         row.className = row.className + "Selected";
 943                 }
 944         } else {
 945                 if (row.className.match("Selected")) {
 946                         row.className = row.className.replace("Selected", "");
 947                 }
 948         }
 949 }
 950
 951 function toggleSelectListRow(sender) {
 952         var parent_row = sender.parentNode;
 953
 954         if (sender.checked) {
 955                 if (!parent_row.className.match("Selected")) {
 956                         parent_row.className = parent_row.className + "Selected";
 957                 }
 958         } else {
 959                 if (parent_row.className.match("Selected")) {
 960                         parent_row.className = parent_row.className.replace("Selected", "");
 961                 }
 962         }
 963 }
 964
 965 function tSR(sender) {
 966         return toggleSelectRow(sender);
 967 }
 968
 969 function toggleSelectRow(sender) {
 970         var parent_row = sender.parentNode.parentNode;
 971
 972         if (sender.checked) {
 973                 if (!parent_row.className.match("Selected")) {
 974                         parent_row.className = parent_row.className + "Selected";
 975                 }
 976         } else {
 977                 if (parent_row.className.match("Selected")) {
 978                         parent_row.className = parent_row.className.replace("Selected", "");
 979                 }
 980         }
 981 }
 982
 983 function getNextUnreadCat(id) {
 984         try {
 985                 var rows = $("feedList").getElementsByTagName("LI");
 986                 var feeds = new Array();
 987
 988                 var unread_only = true;
 989                 var is_cat = true;
 990
 991                 for (var i = 0; i < rows.length; i++) {
 992                         if (rows[i].id.match("FCAT-")) {
 993                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
 994
 995                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
 996
 997                                         if (cat_id >= 0) {
 998                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
 999                                                         feeds.push(cat_id);
1000                                                 }
1001                                         }
1002                                 }
1003                         }
1004                 }
1005
1006                 var idx = feeds.indexOf(id);
1007                 if (idx != -1 && idx < feeds.length) {
1008                         return feeds[idx+1];
1009                 } else {
1010                         return feeds.shift();
1011                 }
1012
1013         } catch (e) {
1014                 exception_error("getNextUnreadCat", e);
1015         }
1016 }
1017
1018 function getRelativeFeedId2(id, is_cat, direction, unread_only) {
1019         try {
1020
1021 //              alert(id + " IC: " + is_cat + " D: " + direction + " U: " + unread_only);
1022
1023                 var rows = $("feedList").getElementsByTagName("LI");
1024                 var feeds = new Array();
1025
1026                 for (var i = 0; i < rows.length; i++) {
1027                         if (rows[i].id.match("FEEDR-")) {
1028
1029                                 if (rows[i].id == "FEEDR-" + id && !is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1030
1031                                         if (!unread_only ||
1032                                                         (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1033                                                 feeds.push(rows[i].id.replace("FEEDR-", ""));
1034                                         }
1035                                 }
1036                         }
1037
1038                         if (rows[i].id.match("FCAT-")) {
1039                                 if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1040
1041                                         var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
1042
1043                                         if (cat_id >= 0) {
1044                                                 if (!unread_only || get_cat_unread(cat_id) > 0) {
1045                                                         feeds.push("CAT:"+cat_id);
1046                                                 }
1047                                         }
1048                                 }
1049                         }
1050                 }
1051
1052 //              alert(feeds.toString());
1053
1054                 if (!id) {
1055                         if (direction == "next") {
1056                                 return feeds.shift();
1057                         } else {
1058                                 return feeds.pop();
1059                         }
1060                 } else {
1061                         if (direction == "next") {
1062                                 if (is_cat) id = "CAT:" + id;
1063                                 var idx = feeds.indexOf(id);
1064                                 if (idx != -1 && idx < feeds.length) {
1065                                         return feeds[idx+1];
1066                                 } else {
1067                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1068                                 }
1069                         } else {
1070                                 if (is_cat) id = "CAT:" + id;
1071                                 var idx = feeds.indexOf(id);
1072                                 if (idx > 0) {
1073                                         return feeds[idx-1];
1074                                 } else {
1075                                         return getRelativeFeedId2(false, is_cat, direction, unread_only);
1076                                 }
1077                         }
1078
1079                 }
1080
1081         } catch (e) {
1082                 exception_error("getRelativeFeedId2", e);
1083         }
1084 }
1085
1086 function getRelativeFeedId(list, id, direction, unread_only) {
1087         var rows = list.getElementsByTagName("LI");
1088         var feeds = new Array();
1089
1090         for (var i = 0; i < rows.length; i++) {
1091                 if (rows[i].id.match("FEEDR-")) {
1092
1093                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1094
1095                                 if (!unread_only ||
1096                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1097                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1098                                 }
1099                         }
1100                 }
1101         }
1102
1103         if (!id) {
1104                 if (direction == "next") {
1105                         return feeds.shift();
1106                 } else {
1107                         return feeds.pop();
1108                 }
1109         } else {
1110                 if (direction == "next") {
1111                         var idx = feeds.indexOf(id);
1112                         if (idx != -1 && idx < feeds.length) {
1113                                 return feeds[idx+1];
1114                         } else {
1115                                 return getRelativeFeedId(list, false, direction, unread_only);
1116                         }
1117                 } else {
1118                         var idx = feeds.indexOf(id);
1119                         if (idx > 0) {
1120                                 return feeds[idx-1];
1121                         } else {
1122                                 return getRelativeFeedId(list, false, direction, unread_only);
1123                         }
1124                 }
1125
1126         }
1127 }
1128
1129 function showBlockElement(id, h_id) {
1130         var elem = $(id);
1131
1132         if (elem) {
1133                 elem.style.display = "block";
1134
1135                 if (h_id) {
1136                         elem = $(h_id);
1137                         if (elem) {
1138                                 elem.style.display = "none";
1139                         }
1140                 }
1141         } else {
1142                 alert("[showBlockElement] can't find element with id " + id);
1143         }
1144 }
1145
1146 function appearBlockElement_afh(effect) {
1147
1148 }
1149
1150 function checkboxToggleElement(elem, id) {
1151         if (elem.checked) {
1152                 Effect.Appear(id, {duration : 0.5});
1153         } else {
1154                 Effect.Fade(id, {duration : 0.5});
1155         }
1156 }
1157
1158 function appearBlockElement(id, h_id) {
1159
1160         try {
1161                 if (h_id) {
1162                         Effect.Fade(h_id);
1163                 }
1164                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1165         } catch (e) {
1166                 exception_error("appearBlockElement", e);
1167         }
1168
1169 }
1170
1171 function hideParentElement(e) {
1172         e.parentNode.style.display = "none";
1173 }
1174
1175 function dropboxSelect(e, v) {
1176         for (i = 0; i < e.length; i++) {
1177                 if (e[i].value == v) {
1178                         e.selectedIndex = i;
1179                         break;
1180                 }
1181         }
1182 }
1183
1184 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1185 // bugfixed just a little bit :-)
1186 function getURLParam(strParamName){
1187   var strReturn = "";
1188   var strHref = window.location.href;
1189
1190   if (strHref.indexOf("#") == strHref.length-1) {
1191                 strHref = strHref.substring(0, strHref.length-1);
1192   }
1193
1194   if ( strHref.indexOf("?") > -1 ){
1195     var strQueryString = strHref.substr(strHref.indexOf("?"));
1196     var aQueryString = strQueryString.split("&");
1197     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1198       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1199         var aParam = aQueryString[iParam].split("=");
1200         strReturn = aParam[1];
1201         break;
1202       }
1203     }
1204   }
1205   return strReturn;
1206 }
1207
1208 function leading_zero(p) {
1209         var s = String(p);
1210         if (s.length == 1) s = "0" + s;
1211         return s;
1212 }
1213
1214 function closeErrorBox() {
1215
1216         if (Element.visible("errorBoxShadow")) {
1217                 Element.hide("dialog_overlay");
1218                 Element.hide("errorBoxShadow");
1219
1220                 enableHotkeys();
1221         }
1222
1223         return false;
1224 }
1225
1226 function closeInfoBox(cleanup) {
1227
1228         try {
1229                 enableHotkeys();
1230
1231                 if (Element.visible("infoBoxShadow")) {
1232                         Element.hide("dialog_overlay");
1233                         Element.hide("infoBoxShadow");
1234
1235                         if (cleanup) $("infoBox").innerHTML = "&nbsp;";
1236                 }
1237         } catch (e) {
1238                 exception_error("closeInfoBox", e);
1239         }
1240
1241         return false;
1242 }
1243
1244
1245 function displayDlg(id, param, callback) {
1246
1247         notify_progress("Loading, please wait...", true);
1248
1249         disableHotkeys();
1250
1251         var query = "?op=dlg&id=" +
1252                 param_escape(id) + "&param=" + param_escape(param);
1253
1254         new Ajax.Request("backend.php", {
1255                 parameters: query,
1256                 onComplete: function (transport) {
1257                         infobox_callback2(transport);
1258                         if (callback) callback(transport);
1259                 } });
1260
1261         return false;
1262 }
1263
1264 function infobox_submit_callback2(transport) {
1265         closeInfoBox();
1266
1267         try {
1268                 // called from prefs, reload tab
1269                 if (typeof active_tab != 'undefined' && active_tab) {
1270                         selectTab(active_tab, false);
1271                 }
1272         } catch (e) { }
1273
1274         if (transport.responseText) {
1275                 notify_info(transport.responseText);
1276         }
1277 }
1278
1279 function infobox_callback2(transport) {
1280         try {
1281
1282                 debug("infobox_callback2");
1283
1284                 var box = $('infoBox');
1285
1286                 if (box) {
1287
1288                         if (!getInitParam("infobox_disable_overlay")) {
1289                                 Element.show("dialog_overlay");
1290                         }
1291
1292                         box.innerHTML=transport.responseText;
1293                         Element.show("infoBoxShadow");
1294                         //Effect.SlideDown("infoBoxShadow", {duration : 1.0});
1295
1296
1297                 }
1298
1299                 disableHotkeys();
1300
1301                 notify("");
1302         } catch (e) {
1303                 exception_error("infobox_callback2", e);
1304         }
1305 }
1306
1307 function createFilter() {
1308
1309         try {
1310
1311                 var form = document.forms['filter_add_form'];
1312                 var reg_exp = form.reg_exp.value;
1313
1314                 if (reg_exp == "") {
1315                         alert(__("Can't add filter: nothing to match on."));
1316                         return false;
1317                 }
1318
1319                 var query = Form.serialize("filter_add_form");
1320
1321                 // we can be called from some other tab in Prefs
1322                 if (typeof active_tab != 'undefined' && active_tab) {
1323                         active_tab = "filterConfig";
1324                 }
1325
1326                 new Ajax.Request("backend.php?" + query, {
1327                         onComplete: function (transport) {
1328                                 infobox_submit_callback2(transport);
1329                         } });
1330
1331                 return true;
1332
1333         } catch (e) {
1334                 exception_error("createFilter", e);
1335         }
1336 }
1337
1338 function isValidURL(s) {
1339         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1340 }
1341
1342 function subscribeToFeed() {
1343
1344         try {
1345
1346         var form = document.forms['feed_add_form'];
1347         var feed_url = form.feed_url.value;
1348
1349         if (feed_url == "") {
1350                 alert(__("Can't subscribe: no feed URL given."));
1351                 return false;
1352         }
1353
1354         notify_progress(__("Subscribing to feed..."), true);
1355
1356         var query = Form.serialize("feed_add_form");
1357
1358         debug("subscribe q: " + query);
1359
1360         Form.disable("feed_add_form");
1361
1362         new Ajax.Request("backend.php", {
1363                 parameters: query,
1364                 onComplete: function(transport) {
1365                         //dlg_frefresh_callback(transport);
1366
1367                         notify('');
1368
1369                         var result = transport.responseXML.getElementsByTagName('result')[0];
1370                         var rc = parseInt(result.getAttribute('code'));
1371
1372                         Form.enable("feed_add_form");
1373
1374                         switch (rc) {
1375                         case 1:
1376                                 closeInfoBox();
1377                                 notify_info(__("Subscribed to %s").replace("%s", feed_url));
1378
1379                                 if (inPreferences()) {
1380                                         updateFeedList();
1381                                 } else {
1382                                         setTimeout('updateFeedList(false, false)', 50);
1383                                 }
1384                                 break;
1385                         case 2:
1386                                 alert(__("Can't subscribe to the specified URL."));
1387                                 break;
1388                         case 0:
1389                                 alert(__("You are already subscribed to this feed."));
1390                                 break;
1391                         }
1392
1393                 } });
1394
1395         } catch (e) {
1396                 exception_error("subscribeToFeed", e);
1397         }
1398
1399         return false;
1400 }
1401
1402 function filterCR(e, f)
1403 {
1404      var key;
1405
1406      if(window.event)
1407           key = window.event.keyCode;     //IE
1408      else
1409           key = e.which;     //firefox
1410
1411         if (key == 13) {
1412                 if (typeof f != 'undefined') {
1413                         f();
1414                         return false;
1415                 } else {
1416                         return false;
1417                 }
1418         } else {
1419                 return true;
1420         }
1421 }
1422
1423 var debug_last_class = "even";
1424
1425 function debug(msg) {
1426
1427         if (debug_last_class == "even") {
1428                 debug_last_class = "odd";
1429         } else {
1430                 debug_last_class = "even";
1431         }
1432
1433         var c = $('debug_output');
1434         if (c && Element.visible(c)) {
1435                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1436                         c.removeChild(c.lastChild);
1437                 }
1438
1439                 var d = new Date();
1440                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1441                         ":" + leading_zero(d.getSeconds());
1442                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1443                         msg + "</li>" + c.innerHTML;
1444         }
1445 }
1446
1447 function getInitParam(key) {
1448         return init_params[key];
1449 }
1450
1451 function setInitParam(key, value) {
1452         init_params[key] = value;
1453 }
1454
1455 function fatalError(code, msg, ext_info) {
1456         try {
1457
1458                 if (!ext_info) ext_info = "N/A";
1459
1460                 if (code == 6) {
1461                         window.location.href = "tt-rss.php";
1462                 } else if (code == 5) {
1463                         window.location.href = "update.php";
1464                 } else {
1465
1466                         if (msg == "") msg = "Unknown error";
1467
1468                         var ebc = $("xebContent");
1469
1470                         if (ebc) {
1471
1472                                 Element.show("dialog_overlay");
1473                                 Element.show("errorBoxShadow");
1474                                 Element.hide("xebBtn");
1475
1476                                 if (ext_info) {
1477                                         if (ext_info.responseText) {
1478                                                 ext_info = ext_info.responseText;
1479                                         }
1480                                 }
1481
1482                                 ebc.innerHTML =
1483                                         "<div><b>Error message:</b></div>" +
1484                                         "<pre>" + msg + "</pre>" +
1485                                         "<div><b>Additional information:</b></div>" +
1486                                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
1487                         }
1488                 }
1489
1490         } catch (e) {
1491                 exception_error("fatalError", e);
1492         }
1493 }
1494
1495 function getFeedName(id, is_cat) {
1496         var e;
1497
1498         if (is_cat) {
1499                 e = $("FCATN-" + id);
1500         } else {
1501                 e = $("FEEDN-" + id);
1502         }
1503         if (e) {
1504                 return e.innerHTML.stripTags();
1505         } else {
1506                 return null;
1507         }
1508 }
1509
1510 function filterDlgCheckType(sender) {
1511
1512         try {
1513
1514                 var ftype = sender[sender.selectedIndex].value;
1515
1516                 var form = document.forms["filter_add_form"];
1517
1518                 if (!form) {
1519                         form = document.forms["filter_edit_form"];
1520                 }
1521
1522                 if (!form) {
1523                         debug("filterDlgCheckType: can't find form!");
1524                         return;
1525                 }
1526
1527                 // if selected filter type is 5 (Date) enable the modifier dropbox
1528                 if (ftype == 5) {
1529                         Element.show("filter_dlg_date_mod_box");
1530                         Element.show("filter_dlg_date_chk_box");
1531                 } else {
1532                         Element.hide("filter_dlg_date_mod_box");
1533                         Element.hide("filter_dlg_date_chk_box");
1534
1535                 }
1536
1537         } catch (e) {
1538                 exception_error("filterDlgCheckType", e);
1539         }
1540
1541 }
1542
1543 function filterDlgCheckAction(sender) {
1544
1545         try {
1546
1547                 var action = sender[sender.selectedIndex].value;
1548
1549                 var form = document.forms["filter_add_form"];
1550
1551                 if (!form) {
1552                         form = document.forms["filter_edit_form"];
1553                 }
1554
1555                 if (!form) {
1556                         debug("filterDlgCheckAction: can't find form!");
1557                         return;
1558                 }
1559
1560                 var action_param = $("filter_dlg_param_box");
1561
1562                 if (!action_param) {
1563                         debug("filterDlgCheckAction: can't find action param box!");
1564                         return;
1565                 }
1566
1567                 // if selected action supports parameters, enable params field
1568                 if (action == 4 || action == 6 || action == 7) {
1569                         Element.show(action_param);
1570                         if (action != 7) {
1571                                 Element.show(form.action_param);
1572                                 Element.hide(form.action_param_label);
1573                         } else {
1574                                 Element.show(form.action_param_label);
1575                                 Element.hide(form.action_param);
1576                         }
1577                 } else {
1578                         Element.hide(action_param);
1579                 }
1580
1581         } catch (e) {
1582                 exception_error("filterDlgCheckAction", e);
1583         }
1584
1585 }
1586
1587 function filterDlgCheckDate() {
1588         try {
1589                 var form = document.forms["filter_add_form"];
1590
1591                 if (!form) {
1592                         form = document.forms["filter_edit_form"];
1593                 }
1594
1595                 if (!form) {
1596                         debug("filterDlgCheckAction: can't find form!");
1597                         return;
1598                 }
1599
1600                 var reg_exp = form.reg_exp.value;
1601
1602                 var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
1603
1604                 new Ajax.Request("backend.php", {
1605                         parameters: query,
1606                         onComplete: function(transport) {
1607
1608                                 var form = document.forms["filter_add_form"];
1609
1610                                 if (!form) {
1611                                         form = document.forms["filter_edit_form"];
1612                                 }
1613
1614                                 if (transport.responseXML) {
1615                                         var result = transport.responseXML.getElementsByTagName("result")[0];
1616
1617                                         if (result && result.firstChild) {
1618                                                 if (result.firstChild.nodeValue == "1") {
1619
1620                                                         new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
1621
1622                                                         return;
1623                                                 }
1624                                         }
1625                                 }
1626
1627                                 new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
1628
1629                         } });
1630
1631
1632         } catch (e) {
1633                 exception_error("filterDlgCheckDate", e);
1634         }
1635 }
1636
1637 function explainError(code) {
1638         return displayDlg("explainError", code);
1639 }
1640
1641 // this only searches loaded headlines list, not in CDM
1642 function getRelativePostIds(id, limit) {
1643
1644         if (!limit) limit = 3;
1645
1646         debug("getRelativePostIds: " + id + " limit=" + limit);
1647
1648         var ids = new Array();
1649         var container = $("headlinesList");
1650
1651         if (container) {
1652                 var rows = container.rows;
1653
1654                 for (var i = 0; i < rows.length; i++) {
1655                         var r_id = rows[i].id.replace("RROW-", "");
1656
1657                         if (r_id == id) {
1658                                 for (var k = 1; k <= limit; k++) {
1659                                         var nid = false;
1660
1661                                         if (i > k-1) var nid = rows[i-k].id.replace("RROW-", "");
1662                                         if (nid) ids.push(nid);
1663
1664                                         if (i < rows.length-k) nid = rows[i+k].id.replace("RROW-", "");
1665                                         if (nid) ids.push(nid);
1666                                 }
1667
1668                                 return ids;
1669                         }
1670                 }
1671         }
1672
1673         return false;
1674 }
1675
1676 function openArticleInNewWindow(id) {
1677         try {
1678                 debug("openArticleInNewWindow: " + id);
1679
1680                 var query = "?op=rpc&subop=getArticleLink&id=" + id;
1681                 var wname = "ttrss_article_" + id;
1682
1683                 debug(query + " " + wname);
1684
1685                 var w = window.open("", wname);
1686
1687                 if (!w) notify_error("Failed to open window for the article");
1688
1689                 new Ajax.Request("backend.php", {
1690                         parameters: query,
1691                         onComplete: function(transport) {
1692
1693                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1694                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1695
1696                                         debug("open_article received link: " + link);
1697
1698                                         if (link && id) {
1699
1700                                                 var wname = "ttrss_article_" + id.firstChild.nodeValue;
1701
1702                                                 debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
1703
1704                                                 var w = window.open(link.firstChild.nodeValue, wname);
1705
1706                                                 if (!w) { notify_error("Failed to load article in new window"); }
1707
1708                                                 if (id) {
1709                                                         id = id.firstChild.nodeValue;
1710                                                         if (!$("headlinesList")) {
1711                                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
1712                                                         }
1713                                                 }
1714                                         } else {
1715                                                 notify_error("Can't open article: received invalid article link");
1716                                         }
1717                                 } });
1718
1719         } catch (e) {
1720                 exception_error("openArticleInNewWindow", e);
1721         }
1722 }
1723
1724 /* http://textsnippets.com/posts/show/835 */
1725
1726 Position.GetWindowSize = function(w) {
1727         w = w ? w : window;
1728         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1729         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1730         return [width, height]
1731 }
1732
1733 /* http://textsnippets.com/posts/show/836 */
1734
1735 Position.Center = function(element, parent) {
1736         var w, h, pw, ph;
1737         var d = Element.getDimensions(element);
1738         w = d.width;
1739         h = d.height;
1740         Position.prepare();
1741         if (!parent) {
1742                 var ws = Position.GetWindowSize();
1743                 pw = ws[0];
1744                 ph = ws[1];
1745         } else {
1746                 pw = parent.offsetWidth;
1747                 ph = parent.offsetHeight;
1748         }
1749         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1750         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1751 }
1752
1753
1754 function isCdmMode() {
1755         return !$("headlinesList");
1756 }
1757
1758 function getSelectedArticleIds2() {
1759         var rows = new Array();
1760         var cdm_mode = isCdmMode();
1761
1762         if (cdm_mode) {
1763                 rows = cdmGetSelectedArticles();
1764         } else {
1765                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1766         }
1767
1768         var ids = new Array();
1769
1770         for (var i = 0; i < rows.length; i++) {
1771                 var chk = $("RCHK-" + rows[i]);
1772                 if (chk && chk.checked) {
1773                         ids.push(rows[i]);
1774                 }
1775         }
1776
1777         return ids;
1778 }
1779
1780 function displayHelpInfobox(topic_id) {
1781
1782         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1783
1784         var w = window.open(url, "ttrss_help",
1785                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1786
1787 }
1788
1789 function focus_element(id) {
1790         try {
1791                 var e = $(id);
1792                 if (e) e.focus();
1793         } catch (e) {
1794                 exception_error("focus_element", e);
1795         }
1796         return false;
1797 }
1798
1799 function loading_set_progress(p) {
1800         try {
1801                 if (p < last_progress_point || !Element.visible("overlay")) return;
1802
1803                 debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
1804
1805                 var o = $("l_progress_i");
1806
1807 //              o.style.width = (p * 2) + "px";
1808
1809                 new Effect.Scale(o, p, {
1810                         scaleY : false,
1811                         scaleFrom : last_progress_point,
1812                         scaleMode: { originalWidth : 200 },
1813                         queue: { position: 'end', scope: 'LSP-Q', limit: 3 } });
1814
1815                 last_progress_point = p;
1816
1817         } catch (e) {
1818                 exception_error("loading_set_progress", e);
1819         }
1820 }
1821
1822 function remove_splash() {
1823         if (Element.visible("overlay")) {
1824                 debug("about to remove splash, OMG!");
1825                 Element.hide("overlay");
1826                 debug("removed splash!");
1827         }
1828 }
1829
1830 function getSelectedFeedsFromBrowser() {
1831
1832         var list = $("browseFeedList");
1833
1834         var selected = new Array();
1835
1836         for (i = 0; i < list.childNodes.length; i++) {
1837                 var child = list.childNodes[i];
1838                 if (child.id && child.id.match("FBROW-")) {
1839                         var id = child.id.replace("FBROW-", "");
1840
1841                         var cb = $("FBCHK-" + id);
1842
1843                         if (cb.checked) {
1844                                 selected.push(id);
1845                         }
1846                 }
1847         }
1848
1849         return selected;
1850 }
1851
1852 function updateFeedBrowser() {
1853         try {
1854
1855                 var query = Form.serialize("feed_browser");
1856
1857                 Element.show('feed_browser_spinner');
1858
1859                 new Ajax.Request("backend.php", {
1860                         parameters: query,
1861                         onComplete: function(transport) {
1862                                 notify('');
1863
1864                                 Element.hide('feed_browser_spinner');
1865
1866                                 var c = $("browseFeedList");
1867                                 var r = transport.responseXML.getElementsByTagName("content")[0];
1868                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
1869                                 var mode = transport.responseXML.getElementsByTagName("mode")[0];
1870
1871                                 if (c && r) {
1872                                         c.innerHTML = r.firstChild.nodeValue;
1873                                 }
1874
1875                                 if (parseInt(mode.getAttribute("value")) == 2) {
1876                                         Element.show('feed_archive_remove');
1877                                 } else {
1878                                         Element.hide('feed_archive_remove');
1879                                 }
1880
1881                         } });
1882
1883         } catch (e) {
1884                 exception_error("updateFeedBrowser", e);
1885         }
1886
1887 }
1888
1889 function transport_error_check(transport) {
1890         try {
1891                 if (transport.responseXML) {
1892                         var error = transport.responseXML.getElementsByTagName("error")[0];
1893
1894                         if (error) {
1895                                 var code = error.getAttribute("error-code");
1896                                 var msg = error.getAttribute("error-msg");
1897                                 if (code != 0) {
1898                                         fatalError(code, msg);
1899                                         return false;
1900                                 }
1901                         }
1902                 }
1903         } catch (e) {
1904                 exception_error("check_for_error_xml", e);
1905         }
1906         return true;
1907 }
1908
1909 function strip_tags(s) {
1910         return s.replace(/<\/?[^>]+(>|$)/g, "");
1911 }
1912
1913 function truncate_string(s, length) {
1914         if (!length) length = 30;
1915         var tmp = s.substring(0, length);
1916         if (s.length > length) tmp += "&hellip;";
1917         return tmp;
1918 }
1919
1920 function hotkey_prefix_timeout() {
1921         try {
1922
1923                 var date = new Date();
1924                 var ts = Math.round(date.getTime() / 1000);
1925
1926                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
1927                         debug("hotkey_prefix seems to be stuck, aborting");
1928                         hotkey_prefix_pressed = false;
1929                         hotkey_prefix = false;
1930                         Element.hide('cmdline');
1931                 }
1932
1933                 setTimeout("hotkey_prefix_timeout()", 1000);
1934
1935         } catch  (e) {
1936                 exception_error("hotkey_prefix_timeout", e);
1937         }
1938 }
1939
1940 function hideAuxDlg() {
1941         try {
1942                 Element.hide('auxDlg');
1943         } catch (e) {
1944                 exception_error("hideAuxDlg", e);
1945         }
1946 }
1947
1948 function displayNewContentPrompt(id) {
1949         try {
1950
1951                 var msg = "<a href='#' onclick='viewfeed("+id+")'>" +
1952                         __("New articles available in this feed (click to show)") + "</a>";
1953
1954                 msg = msg.replace("%s", getFeedName(id));
1955
1956                 $('auxDlg').innerHTML = msg;
1957
1958                 Element.show('auxDlg');
1959
1960         } catch (e) {
1961                 exception_error("displayNewContentPrompt", e);
1962         }
1963 }
1964
1965 function feedBrowserSubscribe() {
1966         try {
1967
1968                 var selected = getSelectedFeedsFromBrowser();
1969
1970                 var mode = document.forms['feed_browser'].mode;
1971
1972                 mode = mode[mode.selectedIndex].value;
1973
1974                 if (selected.length > 0) {
1975                         closeInfoBox();
1976
1977                         notify_progress("Loading, please wait...", true);
1978
1979                         var query = "?op=rpc&subop=massSubscribe&ids="+
1980                                 param_escape(selected.toString()) + "&mode=" + param_escape(mode);
1981
1982                         new Ajax.Request("backend.php", {
1983                                 parameters: query,
1984                                 onComplete: function(transport) {
1985
1986                                         var nf = transport.responseXML.getElementsByTagName('num-feeds')[0];
1987                                         var nf_value = nf.getAttribute("value");
1988
1989                                         notify_info(__("Subscribed to %d feed(s).").replace("%d", nf_value));
1990
1991                                         if (inPreferences()) {
1992                                                 updateFeedList();
1993                                         } else {
1994                                                 setTimeout('updateFeedList(false, false)', 50);
1995                                         }
1996                                 } });
1997
1998                 } else {
1999                         alert(__("No feeds are selected."));
2000                 }
2001
2002         } catch (e) {
2003                 exception_error("feedBrowserSubscribe", e);
2004         }
2005 }
2006
2007 function feedArchiveRemove() {
2008         try {
2009
2010                 var selected = getSelectedFeedsFromBrowser();
2011
2012                 if (selected.length > 0) {
2013
2014                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
2015
2016                         if (confirm(pr)) {
2017                                 Element.show('feed_browser_spinner');
2018
2019                                 var query = "?op=rpc&subop=remarchived&ids=" +
2020                                         param_escape(selected.toString());;
2021
2022                                 new Ajax.Request("backend.php", {
2023                                         parameters: query,
2024                                         onComplete: function(transport) {
2025                                                 updateFeedBrowser();
2026                                         } });
2027                         }
2028
2029                 } else {
2030                         alert(__("No feeds are selected."));
2031                 }
2032
2033         } catch (e) {
2034                 exception_error("feedArchiveRemove", e);
2035         }
2036 }
2037
2038 function uploadIconHandler(rc) {
2039         try {
2040                 switch (rc) {
2041                         case 0:
2042                                 notify_info("Upload complete.");
2043                                 if (inPreferences()) {
2044                                         updateFeedList();
2045                                 } else {
2046                                         setTimeout('updateFeedList(false, false)', 50);
2047                                 }
2048                                 break;
2049                         case 1:
2050                                 notify_error("Upload failed: icon is too big.");
2051                                 break;
2052                         case 2:
2053                                 notify_error("Upload failed.");
2054                                 break;
2055                 }
2056
2057         } catch (e) {
2058                 exception_error("uploadIconHandler", e);
2059         }
2060 }
2061
2062 function removeFeedIcon(id) {
2063
2064         try {
2065
2066                 if (confirm(__("Remove stored feed icon?"))) {
2067                         var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
2068
2069                         debug(query);
2070
2071                         notify_progress("Removing feed icon...", true);
2072
2073                         new Ajax.Request("backend.php", {
2074                                 parameters: query,
2075                                 onComplete: function(transport) {
2076                                         notify_info("Feed icon removed.");
2077                                         if (inPreferences()) {
2078                                                 updateFeedList();
2079                                         } else {
2080                                                 setTimeout('updateFeedList(false, false)', 50);
2081                                         }
2082                                 } });
2083                 }
2084
2085                 return false;
2086         } catch (e) {
2087                 exception_error("uploadFeedIcon", e);
2088         }
2089 }
2090
2091 function uploadFeedIcon() {
2092
2093         try {
2094
2095                 var file = $("icon_file");
2096
2097                 if (file.value.length == 0) {
2098                         alert(__("Please select an image file to upload."));
2099                 } else {
2100                         if (confirm(__("Upload new icon for this feed?"))) {
2101                                 notify_progress("Uploading, please wait...", true);
2102                                 return true;
2103                         }
2104                 }
2105
2106                 return false;
2107
2108         } catch (e) {
2109                 exception_error("uploadFeedIcon", e);
2110         }
2111 }
2112
2113 function addLabel() {
2114
2115         try {
2116
2117                 var caption = prompt(__("Please enter label caption:"), "");
2118
2119                 if (caption != undefined) {
2120
2121                         if (caption == "") {
2122                                 alert(__("Can't create label: missing caption."));
2123                                 return false;
2124                         }
2125
2126                         var query = "?op=pref-labels&subop=add&caption=" +
2127                                 param_escape(caption);
2128
2129                         notify_progress("Loading, please wait...", true);
2130
2131                         if (inPreferences()) active_tab = "labelConfig";
2132
2133                         new Ajax.Request("backend.php", {
2134                                 parameters: query,
2135                                 onComplete: function(transport) {
2136                                         if (inPreferences()) {
2137                                                 infobox_submit_callback2(transport);
2138                                         } else {
2139                                                 updateFeedList();
2140                                         }
2141                         } });
2142
2143                 }
2144
2145         } catch (e) {
2146                 exception_error("addLabel", e);
2147         }
2148 }
2149
2150 function quickAddFeed() {
2151         displayDlg('quickAddFeed', '',
2152            function () {$('feed_url').focus();});
2153 }
2154
2155 function quickAddFilter() {
2156         displayDlg('quickAddFilter', '',
2157            function () {document.forms['filter_add_form'].reg_exp.focus();});
2158 }
2159
2160 function unsubscribeFeed(feed_id, title) {
2161
2162         var msg = __("Unsubscribe from %s?").replace("%s", title);
2163
2164         if (title == undefined || confirm(msg)) {
2165                 notify_progress("Removing feed...");
2166
2167                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
2168
2169                 new Ajax.Request("backend.php", {
2170                         parameters: query,
2171                         onComplete: function(transport) {
2172
2173                                         closeInfoBox();
2174
2175                                         if (inPreferences()) {
2176                                                 updateFeedList();
2177                                         } else {
2178                                                 dlg_frefresh_callback(transport, feed_id);
2179                                         }
2180
2181                                 } });
2182         }
2183
2184         return false;
2185 }
2186
2187
2188