js/functions.js

   1 var notify_silent = false;
   2 var loading_progress = 0;
   3 var sanity_check_done = false;
   4 var init_params = {};
   5
   6 Ajax.Base.prototype.initialize = Ajax.Base.prototype.initialize.wrap(
   7         function (callOriginal, options) {
   8
   9                 if (getInitParam("csrf_token") != undefined) {
  10                         Object.extend(options, options || { });
  11
  12                         if (Object.isString(options.parameters))
  13                                 options.parameters = options.parameters.toQueryParams();
  14                         else if (Object.isHash(options.parameters))
  15                                 options.parameters = options.parameters.toObject();
  16
  17                         options.parameters["csrf_token"] = getInitParam("csrf_token");
  18                 }
  19
  20                 return callOriginal(options);
  21         }
  22 );
  23
  24 /* add method to remove element from array */
  25
  26 Array.prototype.remove = function(s) {
  27         for (var i=0; i < this.length; i++) {
  28                 if (s == this[i]) this.splice(i, 1);
  29         }
  30 };
  31
  32 /* create console.log if it doesn't exist */
  33
  34 if (!window.console) console = {};
  35 console.log = console.log || function(msg) { };
  36 console.warn = console.warn || function(msg) { };
  37 console.error = console.error || function(msg) { };
  38
  39 function exception_error(location, e, ext_info) {
  40         var msg = format_exception_error(location, e);
  41
  42         if (!ext_info) ext_info = false;
  43
  44         try {
  45
  46                 if (ext_info) {
  47                         if (ext_info.responseText) {
  48                                 ext_info = ext_info.responseText;
  49                         }
  50                 }
  51
  52                 var content = "<div class=\"fatalError\">" +
  53                         "<pre>" + msg + "</pre>";
  54
  55                 content += "<form name=\"exceptionForm\" id=\"exceptionForm\" target=\"_blank\" "+
  56                   "action=\"http://tt-rss.org/report.php\" method=\"POST\">";
  57
  58                 content += "<textarea style=\"display : none\" name=\"message\">" + msg + "</textarea>";
  59                 content += "<textarea style=\"display : none\" name=\"params\">N/A</textarea>";
  60
  61                 if (ext_info) {
  62                         content += "<div><b>Additional information:</b></div>" +
  63                         "<textarea name=\"xinfo\" readonly=\"1\">" + ext_info + "</textarea>";
  64                 }
  65
  66                 content += "<div><b>Stack trace:</b></div>" +
  67                         "<textarea name=\"stack\" readonly=\"1\">" + e.stack + "</textarea>";
  68
  69                 content += "</form>";
  70
  71                 content += "</div>";
  72
  73                 content += "<div class='dlgButtons'>";
  74
  75                 content += "<button dojoType=\"dijit.form.Button\""+
  76                                 "onclick=\"dijit.byId('exceptionDlg').report()\">" +
  77                                 __('Report to tt-rss.org') + "</button> ";
  78                 content += "<button dojoType=\"dijit.form.Button\" "+
  79                                 "onclick=\"dijit.byId('exceptionDlg').hide()\">" +
  80                                 __('Close') + "</button>";
  81                 content += "</div>";
  82
  83                 if (dijit.byId("exceptionDlg"))
  84                         dijit.byId("exceptionDlg").destroyRecursive();
  85
  86                 var dialog = new dijit.Dialog({
  87                         id: "exceptionDlg",
  88                         title: "Unhandled exception",
  89                         style: "width: 600px",
  90                         report: function() {
  91                                 if (confirm(__("Are you sure to report this exception to tt-rss.org? The report will include your browser information. Your IP would be saved in the database."))) {
  92
  93                                         document.forms['exceptionForm'].params.value = $H({
  94                                                 browserName: navigator.appName,
  95                                                 browserVersion: navigator.appVersion,
  96                                                 browserPlatform: navigator.platform,
  97                                                 browserCookies: navigator.cookieEnabled,
  98                                         }).toQueryString();
  99
 100                                         document.forms['exceptionForm'].submit();
 101
 102                                 }
 103                         },
 104                         content: content});
 105
 106                 dialog.show();
 107
 108         } catch (e) {
 109                 alert(msg);
 110         }
 111
 112 }
 113
 114 function format_exception_error(location, e) {
 115         var msg;
 116
 117         if (e.fileName) {
 118                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
 119
 120                 msg = "Exception: " + e.name + ", " + e.message +
 121                         "\nFunction: " + location + "()" +
 122                         "\nLocation: " + base_fname + ":" + e.lineNumber;
 123
 124         } else if (e.description) {
 125                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
 126         } else {
 127                 msg = "Exception: " + e + "\nFunction: " + location + "()";
 128         }
 129
 130         console.error("EXCEPTION: " + msg);
 131
 132         return msg;
 133 }
 134
 135 function param_escape(arg) {
 136         if (typeof encodeURIComponent != 'undefined')
 137                 return encodeURIComponent(arg);
 138         else
 139                 return escape(arg);
 140 }
 141
 142 function param_unescape(arg) {
 143         if (typeof decodeURIComponent != 'undefined')
 144                 return decodeURIComponent(arg);
 145         else
 146                 return unescape(arg);
 147 }
 148
 149 var notify_hide_timerid = false;
 150
 151 function hide_notify() {
 152         var n = $("notify");
 153         if (n) {
 154                 n.style.display = "none";
 155         }
 156 }
 157
 158 function notify_silent_next() {
 159         notify_silent = true;
 160 }
 161
 162 function notify_real(msg, no_hide, n_type) {
 163
 164         if (notify_silent) {
 165                 notify_silent = false;
 166                 return;
 167         }
 168
 169         var n = $("notify");
 170         var nb = $("notify_body");
 171
 172         if (!n || !nb) return;
 173
 174         if (notify_hide_timerid) {
 175                 window.clearTimeout(notify_hide_timerid);
 176         }
 177
 178         if (msg == "") {
 179                 if (n.style.display == "block") {
 180                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 181                 }
 182                 return;
 183         } else {
 184                 n.style.display = "block";
 185         }
 186
 187         /* types:
 188
 189                 1 - generic
 190                 2 - progress
 191                 3 - error
 192                 4 - info
 193
 194         */
 195
 196         if (typeof __ != 'undefined') {
 197                 msg = __(msg);
 198         }
 199
 200         if (n_type == 1) {
 201                 n.className = "notify";
 202         } else if (n_type == 2) {
 203                 n.className = "notifyProgress";
 204                 msg = "<img src='"+getInitParam("sign_progress")+"'> " + msg;
 205         } else if (n_type == 3) {
 206                 n.className = "notifyError";
 207                 msg = "<img src='"+getInitParam("sign_excl")+"'> " + msg;
 208         } else if (n_type == 4) {
 209                 n.className = "notifyInfo";
 210                 msg = "<img src='"+getInitParam("sign_info")+"'> " + msg;
 211         }
 212
 213 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 214
 215         nb.innerHTML = msg;
 216
 217         if (!no_hide) {
 218                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 219         }
 220 }
 221
 222 function notify(msg, no_hide) {
 223         notify_real(msg, no_hide, 1);
 224 }
 225
 226 function notify_progress(msg, no_hide) {
 227         notify_real(msg, no_hide, 2);
 228 }
 229
 230 function notify_error(msg, no_hide) {
 231         notify_real(msg, no_hide, 3);
 232
 233 }
 234
 235 function notify_info(msg, no_hide) {
 236         notify_real(msg, no_hide, 4);
 237 }
 238
 239 function setCookie(name, value, lifetime, path, domain, secure) {
 240
 241         var d = false;
 242
 243         if (lifetime) {
 244                 d = new Date();
 245                 d.setTime(d.getTime() + (lifetime * 1000));
 246         }
 247
 248         console.log("setCookie: " + name + " => " + value + ": " + d);
 249
 250         int_setCookie(name, value, d, path, domain, secure);
 251
 252 }
 253
 254 function int_setCookie(name, value, expires, path, domain, secure) {
 255         document.cookie= name + "=" + escape(value) +
 256                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 257                 ((path) ? "; path=" + path : "") +
 258                 ((domain) ? "; domain=" + domain : "") +
 259                 ((secure) ? "; secure" : "");
 260 }
 261
 262 function delCookie(name, path, domain) {
 263         if (getCookie(name)) {
 264                 document.cookie = name + "=" +
 265                 ((path) ? ";path=" + path : "") +
 266                 ((domain) ? ";domain=" + domain : "" ) +
 267                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 268         }
 269 }
 270
 271
 272 function getCookie(name) {
 273
 274         var dc = document.cookie;
 275         var prefix = name + "=";
 276         var begin = dc.indexOf("; " + prefix);
 277         if (begin == -1) {
 278             begin = dc.indexOf(prefix);
 279             if (begin != 0) return null;
 280         }
 281         else {
 282             begin += 2;
 283         }
 284         var end = document.cookie.indexOf(";", begin);
 285         if (end == -1) {
 286             end = dc.length;
 287         }
 288         return unescape(dc.substring(begin + prefix.length, end));
 289 }
 290
 291 function gotoPreferences() {
 292         document.location.href = "prefs.php";
 293 }
 294
 295 function gotoMain() {
 296         document.location.href = "index.php";
 297 }
 298
 299 function gotoExportOpml(filename, settings) {
 300     tmp = settings ? 1 : 0;
 301         document.location.href = "opml.php?op=Export&filename=" + filename + "&settings=" + tmp;
 302 }
 303
 304
 305 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 306   * * @author Sundar Dorai-Raj
 307   * * Email: sdoraira@vt.edu
 308   * * This program is free software; you can redistribute it and/or
 309   * * modify it under the terms of the GNU General Public License
 310   * * as published by the Free Software Foundation; either version 2
 311   * * of the License, or (at your option) any later version,
 312   * * provided that any use properly credits the author.
 313   * * This program is distributed in the hope that it will be useful,
 314   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 315   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 316   * * GNU General Public License for more details at http://www.gnu.org * * */
 317
 318   var numbers=".0123456789";
 319   function isNumeric(x) {
 320     // is x a String or a character?
 321     if(x.length>1) {
 322       // remove negative sign
 323       x=Math.abs(x)+"";
 324       for(var j=0;j<x.length;j++) {
 325         // call isNumeric recursively for each character
 326         number=isNumeric(x.substring(j,j+1));
 327         if(!number) return number;
 328       }
 329       return number;
 330     }
 331     else {
 332       // if x is number return true
 333       if(numbers.indexOf(x)>=0) return true;
 334       return false;
 335     }
 336   }
 337
 338
 339 function toggleSelectRowById(sender, id) {
 340         var row = $(id);
 341         return toggleSelectRow(sender, row);
 342 }
 343
 344 function toggleSelectListRow(sender) {
 345         var row = sender.parentNode;
 346         return toggleSelectRow(sender, row);
 347 }
 348
 349 /* this is for dijit Checkbox */
 350 function toggleSelectListRow2(sender) {
 351         var row = sender.domNode.parentNode;
 352         return toggleSelectRow(sender, row);
 353 }
 354
 355 function tSR(sender, row) {
 356         return toggleSelectRow(sender, row);
 357 }
 358
 359 /* this is for dijit Checkbox */
 360 function toggleSelectRow2(sender, row) {
 361
 362         if (!row) row = sender.domNode.parentNode.parentNode;
 363
 364         if (sender.checked && !row.hasClassName('Selected'))
 365                 row.addClassName('Selected');
 366         else
 367                 row.removeClassName('Selected');
 368 }
 369
 370
 371 function toggleSelectRow(sender, row) {
 372
 373         if (!row) row = sender.parentNode.parentNode;
 374
 375         if (sender.checked && !row.hasClassName('Selected'))
 376                 row.addClassName('Selected');
 377         else
 378                 row.removeClassName('Selected');
 379 }
 380
 381 function checkboxToggleElement(elem, id) {
 382         if (elem.checked) {
 383                 Effect.Appear(id, {duration : 0.5});
 384         } else {
 385                 Effect.Fade(id, {duration : 0.5});
 386         }
 387 }
 388
 389 function dropboxSelect(e, v) {
 390         for (var i = 0; i < e.length; i++) {
 391                 if (e[i].value == v) {
 392                         e.selectedIndex = i;
 393                         break;
 394                 }
 395         }
 396 }
 397
 398 function getURLParam(param){
 399         return String(window.location.href).parseQuery()[param];
 400 }
 401
 402 function leading_zero(p) {
 403         var s = String(p);
 404         if (s.length == 1) s = "0" + s;
 405         return s;
 406 }
 407
 408 function make_timestamp() {
 409         var d = new Date();
 410
 411         return leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
 412                         ":" + leading_zero(d.getSeconds());
 413 }
 414
 415
 416 function closeInfoBox(cleanup) {
 417         try {
 418                 dialog = dijit.byId("infoBox");
 419
 420                 if (dialog)     dialog.hide();
 421
 422         } catch (e) {
 423                 //exception_error("closeInfoBox", e);
 424         }
 425         return false;
 426 }
 427
 428
 429 function displayDlg(id, param, callback) {
 430
 431         notify_progress("Loading, please wait...", true);
 432
 433         var query = "?op=dlg&method=" +
 434                 param_escape(id) + "&param=" + param_escape(param);
 435
 436         new Ajax.Request("backend.php", {
 437                 parameters: query,
 438                 onComplete: function (transport) {
 439                         infobox_callback2(transport);
 440                         if (callback) callback(transport);
 441                 } });
 442
 443         return false;
 444 }
 445
 446 function infobox_callback2(transport) {
 447         try {
 448                 var dialog = false;
 449
 450                 if (dijit.byId("infoBox")) {
 451                         dialog = dijit.byId("infoBox");
 452                 }
 453
 454                 //console.log("infobox_callback2");
 455                 notify('');
 456
 457                 var title = transport.responseXML.getElementsByTagName("title")[0];
 458                 if (title)
 459                         title = title.firstChild.nodeValue;
 460
 461                 var content = transport.responseXML.getElementsByTagName("content")[0];
 462
 463                 content = content.firstChild.nodeValue;
 464
 465                 if (!dialog) {
 466                         dialog = new dijit.Dialog({
 467                                 title: title,
 468                                 id: 'infoBox',
 469                                 style: "width: 600px",
 470                                 onCancel: function() {
 471                                         return true;
 472                                 },
 473                                 onExecute: function() {
 474                                         return true;
 475                                 },
 476                                 onClose: function() {
 477                                         return true;
 478                                         },
 479                                 content: content});
 480                 } else {
 481                         dialog.attr('title', title);
 482                         dialog.attr('content', content);
 483                 }
 484
 485                 dialog.show();
 486
 487                 notify("");
 488         } catch (e) {
 489                 exception_error("infobox_callback2", e);
 490         }
 491 }
 492
 493 function filterCR(e, f)
 494 {
 495      var key;
 496
 497      if(window.event)
 498           key = window.event.keyCode;     //IE
 499      else
 500           key = e.which;     //firefox
 501
 502         if (key == 13) {
 503                 if (typeof f != 'undefined') {
 504                         f();
 505                         return false;
 506                 } else {
 507                         return false;
 508                 }
 509         } else {
 510                 return true;
 511         }
 512 }
 513
 514 function getInitParam(key) {
 515         return init_params[key];
 516 }
 517
 518 function setInitParam(key, value) {
 519         init_params[key] = value;
 520 }
 521
 522 function fatalError(code, msg, ext_info) {
 523         try {
 524
 525                 if (code == 6) {
 526                         window.location.href = "index.php";
 527                 } else if (code == 5) {
 528                         window.location.href = "db-updater.php";
 529                 } else {
 530
 531                         if (msg == "") msg = "Unknown error";
 532
 533                         if (ext_info) {
 534                                 if (ext_info.responseText) {
 535                                         ext_info = ext_info.responseText;
 536                                 }
 537                         }
 538
 539                         if (ERRORS && ERRORS[code] && !msg) {
 540                                 msg = ERRORS[code];
 541                         }
 542
 543                         var content = "<div><b>Error code:</b> " + code + "</div>" +
 544                                 "<p>" + msg + "</p>";
 545
 546                         if (ext_info) {
 547                                 content = content + "<div><b>Additional information:</b></div>" +
 548                                         "<textarea style='width: 100%' readonly=\"1\">" +
 549                                         ext_info + "</textarea>";
 550                         }
 551
 552                         var dialog = new dijit.Dialog({
 553                                 title: "Fatal error",
 554                                 style: "width: 600px",
 555                                 content: content});
 556
 557                         dialog.show();
 558
 559                 }
 560
 561                 return false;
 562
 563         } catch (e) {
 564                 exception_error("fatalError", e);
 565         }
 566 }
 567
 568 function filterDlgCheckCat(sender) {
 569         try {
 570                 if (sender.checked) {
 571                         Element.show('filterDlg_cats');
 572                         Element.hide('filterDlg_feeds');
 573                 } else {
 574                         Element.show('filterDlg_feeds');
 575                         Element.hide('filterDlg_cats');
 576                 }
 577
 578         } catch (e) {
 579                 exception_error("filterDlgCheckCat", e);
 580         }
 581 }
 582
 583 function filterDlgCheckType(sender) {
 584
 585         try {
 586
 587                 var ftype = sender.value;
 588
 589                 // if selected filter type is 5 (Date) enable the modifier dropbox
 590                 if (ftype == 5) {
 591                         Element.show("filterDlg_dateModBox");
 592                         Element.show("filterDlg_dateChkBox");
 593                 } else {
 594                         Element.hide("filterDlg_dateModBox");
 595                         Element.hide("filterDlg_dateChkBox");
 596
 597                 }
 598
 599         } catch (e) {
 600                 exception_error("filterDlgCheckType", e);
 601         }
 602
 603 }
 604
 605 function filterDlgCheckAction(sender) {
 606
 607         try {
 608
 609                 var action = sender.value;
 610
 611                 var action_param = $("filterDlg_paramBox");
 612
 613                 if (!action_param) {
 614                         console.log("filterDlgCheckAction: can't find action param box!");
 615                         return;
 616                 }
 617
 618                 // if selected action supports parameters, enable params field
 619                 if (action == 4 || action == 6 || action == 7) {
 620                         new Effect.Appear(action_param, {duration : 0.5});
 621                         if (action != 7) {
 622                                 Element.show(dijit.byId("filterDlg_actionParam").domNode);
 623                                 Element.hide(dijit.byId("filterDlg_actionParamLabel").domNode);
 624                         } else {
 625                                 Element.show(dijit.byId("filterDlg_actionParamLabel").domNode);
 626                                 Element.hide(dijit.byId("filterDlg_actionParam").domNode);
 627                         }
 628                 } else {
 629                         Element.hide(action_param);
 630                 }
 631
 632         } catch (e) {
 633                 exception_error("filterDlgCheckAction", e);
 634         }
 635
 636 }
 637
 638 function filterDlgCheckDate() {
 639         try {
 640                 var dialog = dijit.byId("filterEditDlg");
 641
 642                 var reg_exp = dialog.attr('value').reg_exp;
 643
 644                 var query = "?op=rpc&method=checkDate&date=" + reg_exp;
 645
 646                 new Ajax.Request("backend.php", {
 647                         parameters: query,
 648                         onComplete: function(transport) {
 649
 650                                 var reply = JSON.parse(transport.responseText);
 651
 652                                 if (reply['result'] == true) {
 653                                         alert(__("Date syntax appears to be correct:") + " " + reply['date']);
 654                                         return;
 655                                 } else {
 656                                         alert(__("Date syntax is incorrect."));
 657                                 }
 658
 659                         } });
 660
 661
 662         } catch (e) {
 663                 exception_error("filterDlgCheckDate", e);
 664         }
 665 }
 666
 667 function explainError(code) {
 668         return displayDlg("explainError", code);
 669 }
 670
 671 function loading_set_progress(p) {
 672         try {
 673                 loading_progress += p;
 674
 675                 if (dijit.byId("loading_bar"))
 676                         dijit.byId("loading_bar").update({progress: loading_progress});
 677
 678                 if (loading_progress >= 90)
 679                         remove_splash();
 680
 681         } catch (e) {
 682                 exception_error("loading_set_progress", e);
 683         }
 684 }
 685
 686 function remove_splash() {
 687
 688         if (Element.visible("overlay")) {
 689                 console.log("about to remove splash, OMG!");
 690                 Element.hide("overlay");
 691                 console.log("removed splash!");
 692         }
 693 }
 694
 695 function transport_error_check(transport) {
 696         try {
 697                 if (transport.responseXML) {
 698                         var error = transport.responseXML.getElementsByTagName("error")[0];
 699
 700                         if (error) {
 701                                 var code = error.getAttribute("error-code");
 702                                 var msg = error.getAttribute("error-msg");
 703                                 if (code != 0) {
 704                                         fatalError(code, msg);
 705                                         return false;
 706                                 }
 707                         }
 708                 }
 709         } catch (e) {
 710                 exception_error("check_for_error_xml", e);
 711         }
 712         return true;
 713 }
 714
 715 function strip_tags(s) {
 716         return s.replace(/<\/?[^>]+(>|$)/g, "");
 717 }
 718
 719 function truncate_string(s, length) {
 720         if (!length) length = 30;
 721         var tmp = s.substring(0, length);
 722         if (s.length > length) tmp += "&hellip;";
 723         return tmp;
 724 }
 725
 726 function hotkey_prefix_timeout() {
 727         try {
 728
 729                 var date = new Date();
 730                 var ts = Math.round(date.getTime() / 1000);
 731
 732                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
 733                         console.log("hotkey_prefix seems to be stuck, aborting");
 734                         hotkey_prefix_pressed = false;
 735                         hotkey_prefix = false;
 736                         Element.hide('cmdline');
 737                 }
 738
 739                 setTimeout("hotkey_prefix_timeout()", 1000);
 740
 741         } catch  (e) {
 742                 exception_error("hotkey_prefix_timeout", e);
 743         }
 744 }
 745
 746 function hideAuxDlg() {
 747         try {
 748                 Element.hide('auxDlg');
 749         } catch (e) {
 750                 exception_error("hideAuxDlg", e);
 751         }
 752 }
 753
 754
 755 function uploadIconHandler(rc) {
 756         try {
 757                 switch (rc) {
 758                         case 0:
 759                                 notify_info("Upload complete.");
 760                                 if (inPreferences()) {
 761                                         updateFeedList();
 762                                 } else {
 763                                         setTimeout('updateFeedList(false, false)', 50);
 764                                 }
 765                                 break;
 766                         case 1:
 767                                 notify_error("Upload failed: icon is too big.");
 768                                 break;
 769                         case 2:
 770                                 notify_error("Upload failed.");
 771                                 break;
 772                 }
 773
 774         } catch (e) {
 775                 exception_error("uploadIconHandler", e);
 776         }
 777 }
 778
 779 function removeFeedIcon(id) {
 780
 781         try {
 782
 783                 if (confirm(__("Remove stored feed icon?"))) {
 784                         var query = "backend.php?op=pref-feeds&method=removeicon&feed_id=" + param_escape(id);
 785
 786                         console.log(query);
 787
 788                         notify_progress("Removing feed icon...", true);
 789
 790                         new Ajax.Request("backend.php", {
 791                                 parameters: query,
 792                                 onComplete: function(transport) {
 793                                         notify_info("Feed icon removed.");
 794                                         if (inPreferences()) {
 795                                                 updateFeedList();
 796                                         } else {
 797                                                 setTimeout('updateFeedList(false, false)', 50);
 798                                         }
 799                                 } });
 800                 }
 801
 802                 return false;
 803         } catch (e) {
 804                 exception_error("uploadFeedIcon", e);
 805         }
 806 }
 807
 808 function uploadFeedIcon() {
 809
 810         try {
 811
 812                 var file = $("icon_file");
 813
 814                 if (file.value.length == 0) {
 815                         alert(__("Please select an image file to upload."));
 816                 } else {
 817                         if (confirm(__("Upload new icon for this feed?"))) {
 818                                 notify_progress("Uploading, please wait...", true);
 819                                 return true;
 820                         }
 821                 }
 822
 823                 return false;
 824
 825         } catch (e) {
 826                 exception_error("uploadFeedIcon", e);
 827         }
 828 }
 829
 830 function addLabel(select, callback) {
 831
 832         try {
 833
 834                 var caption = prompt(__("Please enter label caption:"), "");
 835
 836                 if (caption != undefined) {
 837
 838                         if (caption == "") {
 839                                 alert(__("Can't create label: missing caption."));
 840                                 return false;
 841                         }
 842
 843                         var query = "?op=pref-labels&method=add&caption=" +
 844                                 param_escape(caption);
 845
 846                         if (select)
 847                                 query += "&output=select";
 848
 849                         notify_progress("Loading, please wait...", true);
 850
 851                         if (inPreferences() && !select) active_tab = "labelConfig";
 852
 853                         new Ajax.Request("backend.php", {
 854                                 parameters: query,
 855                                 onComplete: function(transport) {
 856                                         if (callback) {
 857                                                 callback(transport);
 858                                         } else if (inPreferences()) {
 859                                                 updateLabelList();
 860                                         } else {
 861                                                 updateFeedList();
 862                                         }
 863                         } });
 864
 865                 }
 866
 867         } catch (e) {
 868                 exception_error("addLabel", e);
 869         }
 870 }
 871
 872 function quickAddFeed() {
 873         try {
 874                 var query = "backend.php?op=dlg&method=quickAddFeed";
 875
 876                 if (dijit.byId("feedAddDlg"))
 877                         dijit.byId("feedAddDlg").destroyRecursive();
 878
 879                 var dialog = new dijit.Dialog({
 880                         id: "feedAddDlg",
 881                         title: __("Subscribe to Feed"),
 882                         style: "width: 600px",
 883                         execute: function() {
 884                                 if (this.validate()) {
 885                                         console.log(dojo.objectToQuery(this.attr('value')));
 886
 887                                         var feed_url = this.attr('value').feed;
 888
 889                                         notify_progress(__("Subscribing to feed..."), true);
 890
 891                                         new Ajax.Request("backend.php", {
 892                                                 parameters: dojo.objectToQuery(this.attr('value')),
 893                                                 onComplete: function(transport) {
 894                                                         try {
 895
 896                                                                 var reply = JSON.parse(transport.responseText);
 897
 898                                                                 var rc = parseInt(reply['result']);
 899
 900                                                                 notify('');
 901
 902                                                                 console.log("GOT RC: " + rc);
 903
 904                                                                 switch (rc) {
 905                                                                 case 1:
 906                                                                         dialog.hide();
 907                                                                         notify_info(__("Subscribed to %s").replace("%s", feed_url));
 908
 909                                                                         updateFeedList();
 910                                                                         break;
 911                                                                 case 2:
 912                                                                         alert(__("Specified URL seems to be invalid."));
 913                                                                         break;
 914                                                                 case 3:
 915                                                                         alert(__("Specified URL doesn't seem to contain any feeds."));
 916                                                                         break;
 917                                                                 case 4:
 918                                                                         notify_progress("Searching for feed urls...", true);
 919
 920                                                                         new Ajax.Request("backend.php", {
 921                                                                                 parameters: 'op=rpc&method=extractfeedurls&url=' + param_escape(feed_url),
 922                                                                                 onComplete: function(transport, dialog, feed_url) {
 923
 924                                                                                         notify('');
 925
 926                                                                                         var reply = JSON.parse(transport.responseText);
 927
 928                                                                                         var feeds = reply['urls'];
 929
 930                                                                                         console.log(transport.responseText);
 931
 932                                                                                         var select = dijit.byId("feedDlg_feedContainerSelect");
 933
 934                                                                                         while (select.getOptions().length > 0)
 935                                                                                                 select.removeOption(0);
 936
 937                                                                                         var count = 0;
 938                                                                                         for (var feedUrl in feeds) {
 939                                                                                                 select.addOption({value: feedUrl, label: feeds[feedUrl]});
 940                                                                                                 count++;
 941                                                                                         }
 942
 943 //                                                                                      if (count > 5) count = 5;
 944 //                                                                                      select.size = count;
 945
 946                                                                                         Effect.Appear('feedDlg_feedsContainer', {duration : 0.5});
 947                                                                                 }
 948                                                                         });
 949                                                                         break;
 950                                                                 case 5:
 951                                                                         alert(__("Couldn't download the specified URL."));
 952                                                                         break;
 953                                                                 case 0:
 954                                                                         alert(__("You are already subscribed to this feed."));
 955                                                                         break;
 956                                                                 }
 957
 958                                                         } catch (e) {
 959                                                                 exception_error("subscribeToFeed", e, transport);
 960                                                         }
 961
 962                                                 } });
 963
 964                                         }
 965                         },
 966                         href: query});
 967
 968                 dialog.show();
 969         } catch (e) {
 970                 exception_error("quickAddFeed", e);
 971         }
 972 }
 973
 974 function quickAddFilter() {
 975         try {
 976                 var query = "backend.php?op=dlg&method=quickAddFilter";
 977
 978                 if (dijit.byId("filterEditDlg"))
 979                         dijit.byId("filterEditDlg").destroyRecursive();
 980
 981                 dialog = new dijit.Dialog({
 982                         id: "filterEditDlg",
 983                         title: __("Create Filter"),
 984                         style: "width: 600px",
 985                         test: function() {
 986                                 if (this.validate()) {
 987
 988                                         if (dijit.byId("filterTestDlg"))
 989                                                 dijit.byId("filterTestDlg").destroyRecursive();
 990
 991                                         tdialog = new dijit.Dialog({
 992                                                 id: "filterTestDlg",
 993                                                 title: __("Filter Test Results"),
 994                                                 style: "width: 600px",
 995                                                 href: "backend.php?savemode=test&" +
 996                                                         dojo.objectToQuery(dialog.attr('value')),
 997                                                 });
 998
 999                                         tdialog.show();
1000
1001                                 }
1002                         },
1003                         execute: function() {
1004                                 if (this.validate()) {
1005
1006                                         var query = "?op=rpc&method=verifyRegexp&reg_exp=" +
1007                                                 param_escape(dialog.attr('value').reg_exp);
1008
1009                                         notify_progress("Verifying regular expression...");
1010
1011                                         new Ajax.Request("backend.php", {
1012                                                 parameters: query,
1013                                                 onComplete: function(transport) {
1014                                                         var reply = JSON.parse(transport.responseText);
1015
1016                                                         if (reply) {
1017                                                                 notify('');
1018
1019                                                                 if (!reply['status']) {
1020                                                                         alert("Match regular expression seems to be invalid.");
1021                                                                         return;
1022                                                                 } else {
1023                                                                         notify_progress("Saving data...", true);
1024
1025                                                                         console.log(dojo.objectToQuery(dialog.attr('value')));
1026
1027                                                                         new Ajax.Request("backend.php", {
1028                                                                                 parameters: dojo.objectToQuery(dialog.attr('value')),
1029                                                                                 onComplete: function(transport) {
1030                                                                                         dialog.hide();
1031                                                                                         notify_info(transport.responseText);
1032                                                                                         if (inPreferences()) {
1033                                                                                                 updateFilterList();
1034                                                                                         }
1035                                                                         }});
1036                                                                 }
1037                                                         }
1038                                         }});
1039                                 }
1040                         },
1041                         href: query});
1042
1043                 dialog.show();
1044         } catch (e) {
1045                 exception_error("quickAddFilter", e);
1046         }
1047 }
1048
1049 function resetPubSub(feed_id, title) {
1050
1051         var msg = __("Reset subscription? Tiny Tiny RSS will try to subscribe to the notification hub again on next feed update.").replace("%s", title);
1052
1053         if (title == undefined || confirm(msg)) {
1054                 notify_progress("Loading, please wait...");
1055
1056                 var query = "?op=pref-feeds&quiet=1&method=resetPubSub&ids=" + feed_id;
1057
1058                 new Ajax.Request("backend.php", {
1059                         parameters: query,
1060                         onComplete: function(transport) {
1061                                 dijit.byId("pubsubReset_Btn").attr('disabled', true);
1062                                 notify_info("Subscription reset.");
1063                         } });
1064         }
1065
1066         return false;
1067 }
1068
1069
1070 function unsubscribeFeed(feed_id, title) {
1071
1072         var msg = __("Unsubscribe from %s?").replace("%s", title);
1073
1074         if (title == undefined || confirm(msg)) {
1075                 notify_progress("Removing feed...");
1076
1077                 var query = "?op=pref-feeds&quiet=1&method=remove&ids=" + feed_id;
1078
1079                 new Ajax.Request("backend.php", {
1080                         parameters: query,
1081                         onComplete: function(transport) {
1082
1083                                         if (dijit.byId("feedEditDlg")) dijit.byId("feedEditDlg").hide();
1084
1085                                         if (inPreferences()) {
1086                                                 updateFeedList();
1087                                         } else {
1088                                                 if (feed_id == getActiveFeedId())
1089                                                         setTimeout("viewfeed(-5)", 100);
1090                                         }
1091
1092                                 } });
1093         }
1094
1095         return false;
1096 }
1097
1098
1099 function backend_sanity_check_callback(transport) {
1100
1101         try {
1102
1103                 if (sanity_check_done) {
1104                         fatalError(11, "Sanity check request received twice. This can indicate "+
1105                       "presence of Firebug or some other disrupting extension. "+
1106                                 "Please disable it and try again.");
1107                         return;
1108                 }
1109
1110                 var reply = JSON.parse(transport.responseText);
1111
1112                 if (!reply) {
1113                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
1114                         return;
1115                 }
1116
1117                 var error_code = reply['error']['code'];
1118
1119                 if (error_code && error_code != 0) {
1120                         return fatalError(error_code, reply['error']['message']);
1121                 }
1122
1123                 console.log("sanity check ok");
1124
1125                 var params = reply['init-params'];
1126
1127                 if (params) {
1128                         console.log('reading init-params...');
1129
1130                         if (params) {
1131                                 for (k in params) {
1132                                         var v = params[k];
1133                                         console.log("IP: " + k + " => " + v);
1134                                 }
1135                         }
1136
1137                         init_params = params;
1138                 }
1139
1140                 sanity_check_done = true;
1141
1142                 init_second_stage();
1143
1144         } catch (e) {
1145                 exception_error("backend_sanity_check_callback", e, transport);
1146         }
1147 }
1148
1149 /*function has_local_storage() {
1150         try {
1151                 return 'sessionStorage' in window && window['sessionStorage'] != null;
1152         } catch (e) {
1153                 return false;
1154         }
1155 } */
1156
1157 function catSelectOnChange(elem) {
1158         try {
1159 /*              var value = elem[elem.selectedIndex].value;
1160                 var def = elem.getAttribute('default');
1161
1162                 if (value == "ADD_CAT") {
1163
1164                         if (def)
1165                                 dropboxSelect(elem, def);
1166                         else
1167                                 elem.selectedIndex = 0;
1168
1169                         quickAddCat(elem);
1170                 } */
1171
1172         } catch (e) {
1173                 exception_error("catSelectOnChange", e);
1174         }
1175 }
1176
1177 function quickAddCat(elem) {
1178         try {
1179                 var cat = prompt(__("Please enter category title:"));
1180
1181                 if (cat) {
1182
1183                         var query = "?op=rpc&method=quickAddCat&cat=" + param_escape(cat);
1184
1185                         notify_progress("Loading, please wait...", true);
1186
1187                         new Ajax.Request("backend.php", {
1188                                 parameters: query,
1189                                 onComplete: function (transport) {
1190                                         var response = transport.responseXML;
1191                                         var select = response.getElementsByTagName("select")[0];
1192                                         var options = select.getElementsByTagName("option");
1193
1194                                         dropbox_replace_options(elem, options);
1195
1196                                         notify('');
1197
1198                         } });
1199
1200                 }
1201
1202         } catch (e) {
1203                 exception_error("quickAddCat", e);
1204         }
1205 }
1206
1207 function genUrlChangeKey(feed, is_cat) {
1208
1209         try {
1210                 var ok = confirm(__("Generate new syndication address for this feed?"));
1211
1212                 if (ok) {
1213
1214                         notify_progress("Trying to change address...", true);
1215
1216                         var query = "?op=rpc&method=regenFeedKey&id=" + param_escape(feed) +
1217                                 "&is_cat=" + param_escape(is_cat);
1218
1219                         new Ajax.Request("backend.php", {
1220                                 parameters: query,
1221                                 onComplete: function(transport) {
1222                                                 var reply = JSON.parse(transport.responseText);
1223                                                 var new_link = reply.link;
1224
1225                                                 var e = $('gen_feed_url');
1226
1227                                                 if (new_link) {
1228
1229                                                         e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
1230                                                                 "&amp;key=" + new_link);
1231
1232                                                         e.href = e.href.replace(/\&key=.*$/,
1233                                                                 "&key=" + new_link);
1234
1235                                                         new Effect.Highlight(e);
1236
1237                                                         notify('');
1238
1239                                                 } else {
1240                                                         notify_error("Could not change feed URL.");
1241                                                 }
1242                                 } });
1243                 }
1244         } catch (e) {
1245                 exception_error("genUrlChangeKey", e);
1246         }
1247         return false;
1248 }
1249
1250 function labelSelectOnChange(elem) {
1251         try {
1252 /*              var value = elem[elem.selectedIndex].value;
1253                 var def = elem.getAttribute('default');
1254
1255                 if (value == "ADD_LABEL") {
1256
1257                         if (def)
1258                                 dropboxSelect(elem, def);
1259                         else
1260                                 elem.selectedIndex = 0;
1261
1262                         addLabel(elem, function(transport) {
1263
1264                                         try {
1265
1266                                                 var response = transport.responseXML;
1267                                                 var select = response.getElementsByTagName("select")[0];
1268                                                 var options = select.getElementsByTagName("option");
1269
1270                                                 dropbox_replace_options(elem, options);
1271
1272                                                 notify('');
1273                                         } catch (e) {
1274                                                 exception_error("addLabel", e);
1275                                         }
1276                         });
1277                 } */
1278
1279         } catch (e) {
1280                 exception_error("labelSelectOnChange", e);
1281         }
1282 }
1283
1284 function dropbox_replace_options(elem, options) {
1285
1286         try {
1287                 while (elem.hasChildNodes())
1288                         elem.removeChild(elem.firstChild);
1289
1290                 var sel_idx = -1;
1291
1292                 for (var i = 0; i < options.length; i++) {
1293                         var text = options[i].firstChild.nodeValue;
1294                         var value = options[i].getAttribute("value");
1295
1296                         if (value == undefined) value = text;
1297
1298                         var issel = options[i].getAttribute("selected") == "1";
1299
1300                         var option = new Option(text, value, issel);
1301
1302                         if (options[i].getAttribute("disabled"))
1303                                 option.setAttribute("disabled", true);
1304
1305                         elem.insert(option);
1306
1307                         if (issel) sel_idx = i;
1308                 }
1309
1310                 // Chrome doesn't seem to just select stuff when you pass new Option(x, y, true)
1311                 if (sel_idx >= 0) elem.selectedIndex = sel_idx;
1312
1313         } catch (e) {
1314                 exception_error("dropbox_replace_options", e);
1315         }
1316 }
1317
1318 // mode = all, none, invert
1319 function selectTableRows(id, mode) {
1320         try {
1321                 var rows = $(id).rows;
1322
1323                 for (var i = 0; i < rows.length; i++) {
1324                         var row = rows[i];
1325                         var cb = false;
1326
1327                         if (row.id && row.className) {
1328                                 var bare_id = row.id.replace(/^[A-Z]*?-/, "");
1329                                 var inputs = rows[i].getElementsByTagName("input");
1330
1331                                 for (var j = 0; j < inputs.length; j++) {
1332                                         var input = inputs[j];
1333
1334                                         if (input.getAttribute("type") == "checkbox" &&
1335                                                         input.id.match(bare_id)) {
1336
1337                                                 cb = input;
1338                                                 break;
1339                                         }
1340                                 }
1341
1342                                 if (cb) {
1343                                         var issel = row.hasClassName("Selected");
1344
1345                                         if (mode == "all" && !issel) {
1346                                                 row.addClassName("Selected");
1347                                                 cb.checked = true;
1348                                         } else if (mode == "none" && issel) {
1349                                                 row.removeClassName("Selected");
1350                                                 cb.checked = false;
1351                                         } else if (mode == "invert") {
1352
1353                                                 if (issel) {
1354                                                         row.removeClassName("Selected");
1355                                                         cb.checked = false;
1356                                                 } else {
1357                                                         row.addClassName("Selected");
1358                                                         cb.checked = true;
1359                                                 }
1360                                         }
1361                                 }
1362                         }
1363                 }
1364
1365         } catch (e) {
1366                 exception_error("selectTableRows", e);
1367
1368         }
1369 }
1370
1371 function getSelectedTableRowIds(id) {
1372         var rows = [];
1373
1374         try {
1375                 var elem_rows = $(id).rows;
1376
1377                 for (var i = 0; i < elem_rows.length; i++) {
1378                         if (elem_rows[i].hasClassName("Selected")) {
1379                                 var bare_id = elem_rows[i].id.replace(/^[A-Z]*?-/, "");
1380                                 rows.push(bare_id);
1381                         }
1382                 }
1383
1384         } catch (e) {
1385                 exception_error("getSelectedTableRowIds", e);
1386         }
1387
1388         return rows;
1389 }
1390
1391 function editFeed(feed, event) {
1392         try {
1393                 if (feed <= 0)
1394                         return alert(__("You can't edit this kind of feed."));
1395
1396                 var query = "backend.php?op=pref-feeds&method=editfeed&id=" +
1397                         param_escape(feed);
1398
1399                 console.log(query);
1400
1401                 if (dijit.byId("feedEditDlg"))
1402                         dijit.byId("feedEditDlg").destroyRecursive();
1403
1404                 dialog = new dijit.Dialog({
1405                         id: "feedEditDlg",
1406                         title: __("Edit Feed"),
1407                         style: "width: 600px",
1408                         execute: function() {
1409                                 if (this.validate()) {
1410 //                                      console.log(dojo.objectToQuery(this.attr('value')));
1411
1412                                         notify_progress("Saving data...", true);
1413
1414                                         new Ajax.Request("backend.php", {
1415                                                 parameters: dojo.objectToQuery(dialog.attr('value')),
1416                                                 onComplete: function(transport) {
1417                                                         dialog.hide();
1418                                                         notify('');
1419                                                         updateFeedList();
1420                                         }});
1421                                 }
1422                         },
1423                         href: query});
1424
1425                 dialog.show();
1426
1427         } catch (e) {
1428                 exception_error("editFeed", e);
1429         }
1430 }
1431
1432 function feedBrowser() {
1433         try {
1434                 var query = "backend.php?op=dlg&method=feedBrowser";
1435
1436                 if (dijit.byId("feedAddDlg"))
1437                         dijit.byId("feedAddDlg").hide();
1438
1439                 if (dijit.byId("feedBrowserDlg"))
1440                         dijit.byId("feedBrowserDlg").destroyRecursive();
1441
1442                 var dialog = new dijit.Dialog({
1443                         id: "feedBrowserDlg",
1444                         title: __("More Feeds"),
1445                         style: "width: 600px",
1446                         getSelectedFeedIds: function() {
1447                                 var list = $$("#browseFeedList li[id*=FBROW]");
1448                                 var selected = new Array();
1449
1450                                 list.each(function(child) {
1451                                         var id = child.id.replace("FBROW-", "");
1452
1453                                         if (child.hasClassName('Selected')) {
1454                                                 selected.push(id);
1455                                         }
1456                                 });
1457
1458                                 return selected;
1459                         },
1460                         getSelectedFeeds: function() {
1461                                 var list = $$("#browseFeedList li.Selected");
1462                                 var selected = new Array();
1463
1464                                 list.each(function(child) {
1465                                         var title = child.getElementsBySelector("span.fb_feedTitle")[0].innerHTML;
1466                                         var url = child.getElementsBySelector("a.fb_feedUrl")[0].href;
1467
1468                                         selected.push([title,url]);
1469
1470                                 });
1471
1472                                 return selected;
1473                         },
1474
1475                         subscribe: function() {
1476                                 var mode = this.attr('value').mode;
1477                                 var selected = [];
1478
1479                                 if (mode == "1")
1480                                         selected = this.getSelectedFeeds();
1481                                 else
1482                                         selected = this.getSelectedFeedIds();
1483
1484                                 if (selected.length > 0) {
1485                                         dijit.byId("feedBrowserDlg").hide();
1486
1487                                         notify_progress("Loading, please wait...", true);
1488
1489                                         // we use dojo.toJson instead of JSON.stringify because
1490                                         // it somehow escapes everything TWICE, at least in Chrome 9
1491
1492                                         var query = "?op=rpc&method=massSubscribe&payload="+
1493                                                 param_escape(dojo.toJson(selected)) + "&mode=" + param_escape(mode);
1494
1495                                         console.log(query);
1496
1497                                         new Ajax.Request("backend.php", {
1498                                                 parameters: query,
1499                                                 onComplete: function(transport) {
1500                                                         notify('');
1501                                                         updateFeedList();
1502                                                 } });
1503
1504                                 } else {
1505                                         alert(__("No feeds are selected."));
1506                                 }
1507
1508                         },
1509                         update: function() {
1510                                 var query = dojo.objectToQuery(dialog.attr('value'));
1511
1512                                 Element.show('feed_browser_spinner');
1513
1514                                 new Ajax.Request("backend.php", {
1515                                         parameters: query,
1516                                         onComplete: function(transport) {
1517                                                 notify('');
1518
1519                                                 Element.hide('feed_browser_spinner');
1520
1521                                                 var c = $("browseFeedList");
1522
1523                                                 var reply = JSON.parse(transport.responseText);
1524
1525                                                 var r = reply['content'];
1526                                                 var mode = reply['mode'];
1527
1528                                                 if (c && r) {
1529                                                         c.innerHTML = r;
1530                                                 }
1531
1532                                                 dojo.parser.parse("browseFeedList");
1533
1534                                                 if (mode == 2) {
1535                                                         Element.show(dijit.byId('feed_archive_remove').domNode);
1536                                                 } else {
1537                                                         Element.hide(dijit.byId('feed_archive_remove').domNode);
1538                                                 }
1539
1540                                         } });
1541                         },
1542                         removeFromArchive: function() {
1543                                 var selected = this.getSelectedFeeds();
1544
1545                                 if (selected.length > 0) {
1546
1547                                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1548
1549                                         if (confirm(pr)) {
1550                                                 Element.show('feed_browser_spinner');
1551
1552                                                 var query = "?op=rpc&method=remarchived&ids=" +
1553                                                         param_escape(selected.toString());;
1554
1555                                                 new Ajax.Request("backend.php", {
1556                                                         parameters: query,
1557                                                         onComplete: function(transport) {
1558                                                                 dialog.update();
1559                                                         } });
1560                                         }
1561                                 }
1562                         },
1563                         execute: function() {
1564                                 if (this.validate()) {
1565                                         this.subscribe();
1566                                 }
1567                         },
1568                         href: query});
1569
1570                 dialog.show();
1571
1572         } catch (e) {
1573                 exception_error("editFeed", e);
1574         }
1575 }
1576
1577 function showFeedsWithErrors() {
1578         try {
1579                 var query = "backend.php?op=dlg&method=feedsWithErrors";
1580
1581                 if (dijit.byId("errorFeedsDlg"))
1582                         dijit.byId("errorFeedsDlg").destroyRecursive();
1583
1584                 dialog = new dijit.Dialog({
1585                         id: "errorFeedsDlg",
1586                         title: __("Feeds with update errors"),
1587                         style: "width: 600px",
1588                         getSelectedFeeds: function() {
1589                                 return getSelectedTableRowIds("prefErrorFeedList");
1590                         },
1591                         removeSelected: function() {
1592                                 var sel_rows = this.getSelectedFeeds();
1593
1594                                 console.log(sel_rows);
1595
1596                                 if (sel_rows.length > 0) {
1597                                         var ok = confirm(__("Remove selected feeds?"));
1598
1599                                         if (ok) {
1600                                                 notify_progress("Removing selected feeds...", true);
1601
1602                                                 var query = "?op=pref-feeds&method=remove&ids="+
1603                                                         param_escape(sel_rows.toString());
1604
1605                                                 new Ajax.Request("backend.php", {
1606                                                         parameters: query,
1607                                                         onComplete: function(transport) {
1608                                                                 notify('');
1609                                                                 dialog.hide();
1610                                                                 updateFeedList();
1611                                                         } });
1612                                         }
1613
1614                                 } else {
1615                                         alert(__("No feeds are selected."));
1616                                 }
1617                         },
1618                         execute: function() {
1619                                 if (this.validate()) {
1620                                 }
1621                         },
1622                         href: query});
1623
1624                 dialog.show();
1625
1626         } catch (e) {
1627                 exception_error("showFeedsWithErrors", e);
1628         }
1629
1630 }
1631
1632 /* new support functions for SelectByTag */
1633
1634 function get_all_tags(selObj){
1635         try {
1636                 if( !selObj ) return "";
1637
1638                 var result = "";
1639                 var len = selObj.options.length;
1640
1641                 for (var i=0; i < len; i++){
1642                         if (selObj.options[i].selected) {
1643                                 result += selObj[i].value + "%2C";   // is really a comma
1644                         }
1645                 }
1646
1647                 if (result.length > 0){
1648                         result = result.substr(0, result.length-3);  // remove trailing %2C
1649                 }
1650
1651                 return(result);
1652
1653         } catch (e) {
1654                 exception_error("get_all_tags", e);
1655         }
1656 }
1657
1658 function get_radio_checked(radioObj) {
1659         try {
1660                 if (!radioObj) return "";
1661
1662                 var len = radioObj.length;
1663
1664                 if (len == undefined){
1665                         if(radioObj.checked){
1666                                 return(radioObj.value);
1667                         } else {
1668                                 return("");
1669                         }
1670                 }
1671
1672                 for( var i=0; i < len; i++ ){
1673                         if( radioObj[i].checked ){
1674                                 return( radioObj[i].value);
1675                         }
1676                 }
1677
1678         } catch (e) {
1679                 exception_error("get_radio_checked", e);
1680         }
1681         return("");
1682 }