js/functions.js

   1 var loading_progress = 0;
   2 var sanity_check_done = false;
   3 var init_params = {};
   4 var _label_base_index = -1024;
   5 var notify_hide_timerid = false;
   6
   7 Ajax.Base.prototype.initialize = Ajax.Base.prototype.initialize.wrap(
   8         function (callOriginal, options) {
   9
  10                 if (getInitParam("csrf_token") != undefined) {
  11                         Object.extend(options, options || { });
  12
  13                         if (Object.isString(options.parameters))
  14                                 options.parameters = options.parameters.toQueryParams();
  15                         else if (Object.isHash(options.parameters))
  16                                 options.parameters = options.parameters.toObject();
  17
  18                         options.parameters["csrf_token"] = getInitParam("csrf_token");
  19                 }
  20
  21                 return callOriginal(options);
  22         }
  23 );
  24
  25 /* add method to remove element from array */
  26
  27 Array.prototype.remove = function(s) {
  28         for (var i=0; i < this.length; i++) {
  29                 if (s == this[i]) this.splice(i, 1);
  30         }
  31 };
  32
  33 /* create console.log if it doesn't exist */
  34
  35 if (!window.console) console = {};
  36 console.log = console.log || function(msg) { };
  37 console.warn = console.warn || function(msg) { };
  38 console.error = console.error || function(msg) { };
  39
  40 function exception_error(location, e, ext_info) {
  41         var msg = format_exception_error(location, e);
  42
  43         if (!ext_info) ext_info = false;
  44
  45         try {
  46
  47                 if (ext_info)
  48                         ext_info = JSON.stringify(ext_info);
  49
  50                 try {
  51                         new Ajax.Request("backend.php", {
  52                                 parameters: {op: "rpc", method: "log", logmsg: msg},
  53                                 onComplete: function (transport) {
  54                                         console.log(transport.responseText);
  55                                 } });
  56
  57                 } catch (eii) {
  58                         console.log("Exception while trying to log the error.");
  59                         console.log(eii);
  60                 }
  61
  62                 msg += "<p>"+ __("The error will be reported to the configured log destination.") +
  63                         "</p>";
  64
  65                 var content = "<div class=\"fatalError\">" +
  66                         "<pre>" + msg + "</pre>";
  67
  68                 content += "<form name=\"exceptionForm\" id=\"exceptionForm\" target=\"_blank\" "+
  69                   "action=\"https://tt-rss.org/report.php\" method=\"POST\">";
  70
  71                 content += "<textarea style=\"display : none\" name=\"message\">" + msg + "</textarea>";
  72                 content += "<textarea style=\"display : none\" name=\"params\">N/A</textarea>";
  73
  74                 if (ext_info) {
  75                         content += "<div><b>Additional information:</b></div>" +
  76                         "<textarea name=\"xinfo\" readonly=\"1\">" + ext_info + "</textarea>";
  77                 }
  78
  79                 content += "<div><b>Stack trace:</b></div>" +
  80                         "<textarea name=\"stack\" readonly=\"1\">" + e.stack + "</textarea>";
  81
  82                 content += "</form>";
  83
  84                 content += "</div>";
  85
  86                 content += "<div class='dlgButtons'>";
  87
  88                 content += "<button dojoType=\"dijit.form.Button\""+
  89                                 "onclick=\"dijit.byId('exceptionDlg').report()\">" +
  90                                 __('Report to tt-rss.org') + "</button> ";
  91                 content += "<button dojoType=\"dijit.form.Button\" "+
  92                                 "onclick=\"dijit.byId('exceptionDlg').hide()\">" +
  93                                 __('Close') + "</button>";
  94                 content += "</div>";
  95
  96                 if (dijit.byId("exceptionDlg"))
  97                         dijit.byId("exceptionDlg").destroyRecursive();
  98
  99                 var dialog = new dijit.Dialog({
 100                         id: "exceptionDlg",
 101                         title: "Unhandled exception",
 102                         style: "width: 600px",
 103                         report: function() {
 104                                 if (confirm(__("Are you sure to report this exception to tt-rss.org? The report will include information about your web browser and tt-rss configuration. Your IP will be saved in the database."))) {
 105
 106                                         document.forms['exceptionForm'].params.value = $H({
 107                                                 browserName: navigator.appName,
 108                                                 browserVersion: navigator.appVersion,
 109                                                 browserPlatform: navigator.platform,
 110                                                 browserCookies: navigator.cookieEnabled,
 111                                                 ttrssVersion: __ttrss_version,
 112                                                 initParams: JSON.stringify(init_params),
 113                                         }).toQueryString();
 114
 115                                         document.forms['exceptionForm'].submit();
 116
 117                                 }
 118                         },
 119                         content: content});
 120
 121                 dialog.show();
 122
 123         } catch (ei) {
 124                 console.log("Exception while trying to report an exception. Oh boy.");
 125                 console.log(ei);
 126                 console.log("Original exception:");
 127                 console.log(e);
 128
 129                 msg += "\n\nAdditional exception caught while trying to show the error dialog.\n\n" +  format_exception_error('exception_error', ei);
 130
 131                 try {
 132                         new Ajax.Request("backend.php", {
 133                                 parameters: {op: "rpc", method: "log", logmsg: msg},
 134                                 onComplete: function (transport) {
 135                                         console.log(transport.responseText);
 136                                 } });
 137
 138                 } catch (eii) {
 139                         console.log("Third exception while trying to log the error! Seriously?");
 140                         console.log(eii);
 141                 }
 142
 143                 msg += "\n\nThe error will be reported to the configured log destination.";
 144
 145                 alert(msg);
 146         }
 147
 148 }
 149
 150 function format_exception_error(location, e) {
 151         var msg;
 152
 153         if (e.fileName) {
 154                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
 155
 156                 msg = "Exception: " + e.name + ", " + e.message +
 157                         "\nFunction: " + location + "()" +
 158                         "\nLocation: " + base_fname + ":" + e.lineNumber;
 159
 160         } else if (e.description) {
 161                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
 162         } else {
 163                 msg = "Exception: " + e + "\nFunction: " + location + "()";
 164         }
 165
 166         console.error("EXCEPTION: " + msg);
 167
 168         return msg;
 169 }
 170
 171 function param_escape(arg) {
 172         if (typeof encodeURIComponent != 'undefined')
 173                 return encodeURIComponent(arg);
 174         else
 175                 return escape(arg);
 176 }
 177
 178 function param_unescape(arg) {
 179         if (typeof decodeURIComponent != 'undefined')
 180                 return decodeURIComponent(arg);
 181         else
 182                 return unescape(arg);
 183 }
 184
 185 function notify_real(msg, no_hide, n_type) {
 186
 187         var n = $("notify");
 188
 189         if (!n) return;
 190
 191         if (notify_hide_timerid) {
 192                 window.clearTimeout(notify_hide_timerid);
 193         }
 194
 195         if (msg == "") {
 196                 if (n.hasClassName("visible")) {
 197                         notify_hide_timerid = window.setTimeout(function() {
 198                                 n.removeClassName("visible") }, 0);
 199                 }
 200                 return;
 201         }
 202
 203         /* types:
 204
 205                 1 - generic
 206                 2 - progress
 207                 3 - error
 208                 4 - info
 209
 210         */
 211
 212         msg = "<span class=\"msg\"> " + __(msg) + "</span>";
 213
 214         if (n_type == 2) {
 215                 msg = "<span><img src=\""+getInitParam("icon_indicator_white")+"\"></span>" + msg;
 216                 no_hide = true;
 217         } else if (n_type == 3) {
 218                 msg = "<span><img src=\""+getInitParam("icon_alert")+"\"></span>" + msg;
 219         } else if (n_type == 4) {
 220                 msg = "<span><img src=\""+getInitParam("icon_information")+"\"></span>" + msg;
 221         }
 222
 223         msg += " <span><img src=\""+getInitParam("icon_cross")+"\" class=\"close\" title=\"" +
 224                 __("Click to close") + "\" onclick=\"notify('')\"></span>";
 225
 226         n.innerHTML = msg;
 227
 228         window.setTimeout(function() {
 229                 // goddamnit firefox
 230                 if (n_type == 2) {
 231                 n.className = "notify notify_progress visible";
 232                         } else if (n_type == 3) {
 233                         n.className = "notify notify_error visible";
 234                         msg = "<span><img src='images/alert.png'></span>" + msg;
 235                 } else if (n_type == 4) {
 236                         n.className = "notify notify_info visible";
 237                 } else {
 238                         n.className = "notify visible";
 239                 }
 240
 241                 if (!no_hide) {
 242                         notify_hide_timerid = window.setTimeout(function() {
 243                                 n.removeClassName("visible") }, 5*1000);
 244                 }
 245
 246         }, 10);
 247
 248 }
 249
 250 function notify(msg, no_hide) {
 251         notify_real(msg, no_hide, 1);
 252 }
 253
 254 function notify_progress(msg, no_hide) {
 255         notify_real(msg, no_hide, 2);
 256 }
 257
 258 function notify_error(msg, no_hide) {
 259         notify_real(msg, no_hide, 3);
 260
 261 }
 262
 263 function notify_info(msg, no_hide) {
 264         notify_real(msg, no_hide, 4);
 265 }
 266
 267 function setCookie(name, value, lifetime, path, domain, secure) {
 268
 269         var d = false;
 270
 271         if (lifetime) {
 272                 d = new Date();
 273                 d.setTime(d.getTime() + (lifetime * 1000));
 274         }
 275
 276         console.log("setCookie: " + name + " => " + value + ": " + d);
 277
 278         int_setCookie(name, value, d, path, domain, secure);
 279
 280 }
 281
 282 function int_setCookie(name, value, expires, path, domain, secure) {
 283         document.cookie= name + "=" + escape(value) +
 284                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 285                 ((path) ? "; path=" + path : "") +
 286                 ((domain) ? "; domain=" + domain : "") +
 287                 ((secure) ? "; secure" : "");
 288 }
 289
 290 function delCookie(name, path, domain) {
 291         if (getCookie(name)) {
 292                 document.cookie = name + "=" +
 293                 ((path) ? ";path=" + path : "") +
 294                 ((domain) ? ";domain=" + domain : "" ) +
 295                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 296         }
 297 }
 298
 299
 300 function getCookie(name) {
 301
 302         var dc = document.cookie;
 303         var prefix = name + "=";
 304         var begin = dc.indexOf("; " + prefix);
 305         if (begin == -1) {
 306             begin = dc.indexOf(prefix);
 307             if (begin != 0) return null;
 308         }
 309         else {
 310             begin += 2;
 311         }
 312         var end = document.cookie.indexOf(";", begin);
 313         if (end == -1) {
 314             end = dc.length;
 315         }
 316         return unescape(dc.substring(begin + prefix.length, end));
 317 }
 318
 319 function gotoPreferences() {
 320         document.location.href = "prefs.php";
 321 }
 322
 323 function gotoLogout() {
 324         document.location.href = "backend.php?op=logout";
 325 }
 326
 327 function gotoMain() {
 328         document.location.href = "index.php";
 329 }
 330
 331 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 332   * * @author Sundar Dorai-Raj
 333   * * Email: sdoraira@vt.edu
 334   * * This program is free software; you can redistribute it and/or
 335   * * modify it under the terms of the GNU General Public License
 336   * * as published by the Free Software Foundation; either version 2
 337   * * of the License, or (at your option) any later version,
 338   * * provided that any use properly credits the author.
 339   * * This program is distributed in the hope that it will be useful,
 340   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 341   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 342   * * GNU General Public License for more details at http://www.gnu.org * * */
 343
 344   var numbers=".0123456789";
 345   function isNumeric(x) {
 346     // is x a String or a character?
 347     if(x.length>1) {
 348       // remove negative sign
 349       x=Math.abs(x)+"";
 350       for(var j=0;j<x.length;j++) {
 351         // call isNumeric recursively for each character
 352         number=isNumeric(x.substring(j,j+1));
 353         if(!number) return number;
 354       }
 355       return number;
 356     }
 357     else {
 358       // if x is number return true
 359       if(numbers.indexOf(x)>=0) return true;
 360       return false;
 361     }
 362   }
 363
 364
 365 function toggleSelectRowById(sender, id) {
 366         var row = $(id);
 367         return toggleSelectRow(sender, row);
 368 }
 369
 370 function toggleSelectListRow(sender) {
 371         var row = sender.parentNode;
 372         return toggleSelectRow(sender, row);
 373 }
 374
 375 /* this is for dijit Checkbox */
 376 function toggleSelectListRow2(sender) {
 377         var row = sender.domNode.parentNode;
 378         return toggleSelectRow(sender, row);
 379 }
 380
 381 /* this is for dijit Checkbox */
 382 function toggleSelectRow2(sender, row, is_cdm) {
 383
 384         if (!row)
 385                 if (!is_cdm)
 386                         row = sender.domNode.parentNode.parentNode;
 387                 else
 388                         row = sender.domNode.parentNode.parentNode.parentNode; // oh ffs
 389
 390         if (sender.checked && !row.hasClassName('Selected'))
 391                 row.addClassName('Selected');
 392         else
 393                 row.removeClassName('Selected');
 394
 395         if (typeof updateSelectedPrompt != undefined)
 396                 updateSelectedPrompt();
 397 }
 398
 399
 400 function toggleSelectRow(sender, row) {
 401
 402         if (!row) row = sender.parentNode.parentNode;
 403
 404         if (sender.checked && !row.hasClassName('Selected'))
 405                 row.addClassName('Selected');
 406         else
 407                 row.removeClassName('Selected');
 408
 409         if (typeof updateSelectedPrompt != undefined)
 410                 updateSelectedPrompt();
 411 }
 412
 413 function checkboxToggleElement(elem, id) {
 414         if (elem.checked) {
 415                 Effect.Appear(id, {duration : 0.5});
 416         } else {
 417                 Effect.Fade(id, {duration : 0.5});
 418         }
 419 }
 420
 421 function dropboxSelect(e, v) {
 422         for (var i = 0; i < e.length; i++) {
 423                 if (e[i].value == v) {
 424                         e.selectedIndex = i;
 425                         break;
 426                 }
 427         }
 428 }
 429
 430 function getURLParam(param){
 431         return String(window.location.href).parseQuery()[param];
 432 }
 433
 434 function closeInfoBox(cleanup) {
 435         try {
 436                 dialog = dijit.byId("infoBox");
 437
 438                 if (dialog)     dialog.hide();
 439
 440         } catch (e) {
 441                 //exception_error("closeInfoBox", e);
 442         }
 443         return false;
 444 }
 445
 446
 447 function displayDlg(title, id, param, callback) {
 448
 449         notify_progress("Loading, please wait...", true);
 450
 451         var query = "?op=dlg&method=" +
 452                 param_escape(id) + "&param=" + param_escape(param);
 453
 454         new Ajax.Request("backend.php", {
 455                 parameters: query,
 456                 onComplete: function (transport) {
 457                         infobox_callback2(transport, title);
 458                         if (callback) callback(transport);
 459                 } });
 460
 461         return false;
 462 }
 463
 464 function infobox_callback2(transport, title) {
 465         try {
 466                 var dialog = false;
 467
 468                 if (dijit.byId("infoBox")) {
 469                         dialog = dijit.byId("infoBox");
 470                 }
 471
 472                 //console.log("infobox_callback2");
 473                 notify('');
 474
 475                 var content = transport.responseText;
 476
 477                 if (!dialog) {
 478                         dialog = new dijit.Dialog({
 479                                 title: title,
 480                                 id: 'infoBox',
 481                                 style: "width: 600px",
 482                                 onCancel: function() {
 483                                         return true;
 484                                 },
 485                                 onExecute: function() {
 486                                         return true;
 487                                 },
 488                                 onClose: function() {
 489                                         return true;
 490                                         },
 491                                 content: content});
 492                 } else {
 493                         dialog.attr('title', title);
 494                         dialog.attr('content', content);
 495                 }
 496
 497                 dialog.show();
 498
 499                 notify("");
 500         } catch (e) {
 501                 exception_error("infobox_callback2", e);
 502         }
 503 }
 504
 505 function getInitParam(key) {
 506         return init_params[key];
 507 }
 508
 509 function setInitParam(key, value) {
 510         init_params[key] = value;
 511 }
 512
 513 function fatalError(code, msg, ext_info) {
 514         try {
 515
 516                 if (code == 6) {
 517                         window.location.href = "index.php";
 518                 } else if (code == 5) {
 519                         window.location.href = "public.php?op=dbupdate";
 520                 } else {
 521
 522                         if (msg == "") msg = "Unknown error";
 523
 524                         if (ext_info) {
 525                                 if (ext_info.responseText) {
 526                                         ext_info = ext_info.responseText;
 527                                 }
 528                         }
 529
 530                         if (ERRORS && ERRORS[code] && !msg) {
 531                                 msg = ERRORS[code];
 532                         }
 533
 534                         var content = "<div><b>Error code:</b> " + code + "</div>" +
 535                                 "<p>" + msg + "</p>";
 536
 537                         if (ext_info) {
 538                                 content = content + "<div><b>Additional information:</b></div>" +
 539                                         "<textarea style='width: 100%' readonly=\"1\">" +
 540                                         ext_info + "</textarea>";
 541                         }
 542
 543                         var dialog = new dijit.Dialog({
 544                                 title: "Fatal error",
 545                                 style: "width: 600px",
 546                                 content: content});
 547
 548                         dialog.show();
 549
 550                 }
 551
 552                 return false;
 553
 554         } catch (e) {
 555                 exception_error("fatalError", e);
 556         }
 557 }
 558
 559 function filterDlgCheckAction(sender) {
 560
 561         try {
 562
 563                 var action = sender.value;
 564
 565                 var action_param = $("filterDlg_paramBox");
 566
 567                 if (!action_param) {
 568                         console.log("filterDlgCheckAction: can't find action param box!");
 569                         return;
 570                 }
 571
 572                 // if selected action supports parameters, enable params field
 573                 if (action == 4 || action == 6 || action == 7 || action == 9) {
 574                         new Effect.Appear(action_param, {duration : 0.5});
 575
 576                         Element.hide(dijit.byId("filterDlg_actionParam").domNode);
 577                         Element.hide(dijit.byId("filterDlg_actionParamLabel").domNode);
 578                         Element.hide(dijit.byId("filterDlg_actionParamPlugin").domNode);
 579
 580                         if (action == 7) {
 581                                 Element.show(dijit.byId("filterDlg_actionParamLabel").domNode);
 582                         } else if (action == 9) {
 583                                 Element.show(dijit.byId("filterDlg_actionParamPlugin").domNode);
 584                         } else {
 585                                 Element.show(dijit.byId("filterDlg_actionParam").domNode);
 586                         }
 587
 588                 } else {
 589                         Element.hide(action_param);
 590                 }
 591
 592         } catch (e) {
 593                 exception_error("filterDlgCheckAction", e);
 594         }
 595
 596 }
 597
 598
 599 function explainError(code) {
 600         return displayDlg(__("Error explained"), "explainError", code);
 601 }
 602
 603 function loading_set_progress(p) {
 604         try {
 605                 loading_progress += p;
 606
 607                 if (dijit.byId("loading_bar"))
 608                         dijit.byId("loading_bar").update({progress: loading_progress});
 609
 610                 if (loading_progress >= 90)
 611                         remove_splash();
 612
 613         } catch (e) {
 614                 exception_error("loading_set_progress", e);
 615         }
 616 }
 617
 618 function remove_splash() {
 619
 620         if (Element.visible("overlay")) {
 621                 console.log("about to remove splash, OMG!");
 622                 Element.hide("overlay");
 623                 console.log("removed splash!");
 624         }
 625 }
 626
 627 function transport_error_check(transport) {
 628         try {
 629                 if (transport.responseXML) {
 630                         var error = transport.responseXML.getElementsByTagName("error")[0];
 631
 632                         if (error) {
 633                                 var code = error.getAttribute("error-code");
 634                                 var msg = error.getAttribute("error-msg");
 635                                 if (code != 0) {
 636                                         fatalError(code, msg);
 637                                         return false;
 638                                 }
 639                         }
 640                 }
 641         } catch (e) {
 642                 exception_error("check_for_error_xml", e);
 643         }
 644         return true;
 645 }
 646
 647 function strip_tags(s) {
 648         return s.replace(/<\/?[^>]+(>|$)/g, "");
 649 }
 650
 651 function truncate_string(s, length) {
 652         if (!length) length = 30;
 653         var tmp = s.substring(0, length);
 654         if (s.length > length) tmp += "&hellip;";
 655         return tmp;
 656 }
 657
 658 function hotkey_prefix_timeout() {
 659         try {
 660
 661                 var date = new Date();
 662                 var ts = Math.round(date.getTime() / 1000);
 663
 664                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
 665                         console.log("hotkey_prefix seems to be stuck, aborting");
 666                         hotkey_prefix_pressed = false;
 667                         hotkey_prefix = false;
 668                         Element.hide('cmdline');
 669                 }
 670
 671                 setTimeout(hotkey_prefix_timeout, 1000);
 672
 673         } catch  (e) {
 674                 exception_error("hotkey_prefix_timeout", e);
 675         }
 676 }
 677
 678 function uploadIconHandler(rc) {
 679         try {
 680                 switch (rc) {
 681                         case 0:
 682                                 notify_info("Upload complete.");
 683                                 if (inPreferences()) {
 684                                         updateFeedList();
 685                                 } else {
 686                                         setTimeout('updateFeedList(false, false)', 50);
 687                                 }
 688                                 break;
 689                         case 1:
 690                                 notify_error("Upload failed: icon is too big.");
 691                                 break;
 692                         case 2:
 693                                 notify_error("Upload failed.");
 694                                 break;
 695                 }
 696
 697         } catch (e) {
 698                 exception_error("uploadIconHandler", e);
 699         }
 700 }
 701
 702 function removeFeedIcon(id) {
 703
 704         try {
 705
 706                 if (confirm(__("Remove stored feed icon?"))) {
 707                         var query = "backend.php?op=pref-feeds&method=removeicon&feed_id=" + param_escape(id);
 708
 709                         console.log(query);
 710
 711                         notify_progress("Removing feed icon...", true);
 712
 713                         new Ajax.Request("backend.php", {
 714                                 parameters: query,
 715                                 onComplete: function(transport) {
 716                                         notify_info("Feed icon removed.");
 717                                         if (inPreferences()) {
 718                                                 updateFeedList();
 719                                         } else {
 720                                                 setTimeout('updateFeedList(false, false)', 50);
 721                                         }
 722                                 } });
 723                 }
 724
 725                 return false;
 726         } catch (e) {
 727                 exception_error("removeFeedIcon", e);
 728         }
 729 }
 730
 731 function uploadFeedIcon() {
 732
 733         try {
 734
 735                 var file = $("icon_file");
 736
 737                 if (file.value.length == 0) {
 738                         alert(__("Please select an image file to upload."));
 739                 } else {
 740                         if (confirm(__("Upload new icon for this feed?"))) {
 741                                 notify_progress("Uploading, please wait...", true);
 742                                 return true;
 743                         }
 744                 }
 745
 746                 return false;
 747
 748         } catch (e) {
 749                 exception_error("uploadFeedIcon", e);
 750         }
 751 }
 752
 753 function addLabel(select, callback) {
 754
 755         try {
 756
 757                 var caption = prompt(__("Please enter label caption:"), "");
 758
 759                 if (caption != undefined) {
 760
 761                         if (caption == "") {
 762                                 alert(__("Can't create label: missing caption."));
 763                                 return false;
 764                         }
 765
 766                         var query = "?op=pref-labels&method=add&caption=" +
 767                                 param_escape(caption);
 768
 769                         if (select)
 770                                 query += "&output=select";
 771
 772                         notify_progress("Loading, please wait...", true);
 773
 774                         if (inPreferences() && !select) active_tab = "labelConfig";
 775
 776                         new Ajax.Request("backend.php", {
 777                                 parameters: query,
 778                                 onComplete: function(transport) {
 779                                         if (callback) {
 780                                                 callback(transport);
 781                                         } else if (inPreferences()) {
 782                                                 updateLabelList();
 783                                         } else {
 784                                                 updateFeedList();
 785                                         }
 786                         } });
 787
 788                 }
 789
 790         } catch (e) {
 791                 exception_error("addLabel", e);
 792         }
 793 }
 794
 795 function quickAddFeed() {
 796         try {
 797                 var query = "backend.php?op=feeds&method=quickAddFeed";
 798
 799                 // overlapping widgets
 800                 if (dijit.byId("batchSubDlg")) dijit.byId("batchSubDlg").destroyRecursive();
 801                 if (dijit.byId("feedAddDlg"))   dijit.byId("feedAddDlg").destroyRecursive();
 802
 803                 var dialog = new dijit.Dialog({
 804                         id: "feedAddDlg",
 805                         title: __("Subscribe to Feed"),
 806                         style: "width: 600px",
 807                         show_error: function(msg) {
 808                                 var elem = $("fadd_error_message");
 809
 810                                 elem.innerHTML = msg;
 811
 812                                 if (!Element.visible(elem))
 813                                         new Effect.Appear(elem);
 814
 815                         },
 816                         execute: function() {
 817                                 if (this.validate()) {
 818                                         console.log(dojo.objectToQuery(this.attr('value')));
 819
 820                                         var feed_url = this.attr('value').feed;
 821
 822                                         Element.show("feed_add_spinner");
 823                                         Element.hide("fadd_error_message");
 824
 825                                         new Ajax.Request("backend.php", {
 826                                                 parameters: dojo.objectToQuery(this.attr('value')),
 827                                                 onComplete: function(transport) {
 828                                                         try {
 829
 830                                                                 try {
 831                                                                         var reply = JSON.parse(transport.responseText);
 832                                                                 } catch (e) {
 833                                                                         Element.hide("feed_add_spinner");
 834                                                                         alert(__("Failed to parse output. This can indicate server timeout and/or network issues. Backend output was logged to browser console."));
 835                                                                         console.log('quickAddFeed, backend returned:' + transport.responseText);
 836                                                                         return;
 837                                                                 }
 838
 839                                                                 var rc = reply['result'];
 840
 841                                                                 notify('');
 842                                                                 Element.hide("feed_add_spinner");
 843
 844                                                                 console.log(rc);
 845
 846                                                                 switch (parseInt(rc['code'])) {
 847                                                                 case 1:
 848                                                                         dialog.hide();
 849                                                                         notify_info(__("Subscribed to %s").replace("%s", feed_url));
 850
 851                                                                         updateFeedList();
 852                                                                         break;
 853                                                                 case 2:
 854                                                                         dialog.show_error(__("Specified URL seems to be invalid."));
 855                                                                         break;
 856                                                                 case 3:
 857                                                                         dialog.show_error(__("Specified URL doesn't seem to contain any feeds."));
 858                                                                         break;
 859                                                                 case 4:
 860                                                                         feeds = rc['feeds'];
 861
 862                                                                         Element.show("fadd_multiple_notify");
 863
 864                                                                         var select = dijit.byId("feedDlg_feedContainerSelect");
 865
 866                                                                         while (select.getOptions().length > 0)
 867                                                                                 select.removeOption(0);
 868
 869                                                                         select.addOption({value: '', label: __("Expand to select feed")});
 870
 871                                                                         var count = 0;
 872                                                                         for (var feedUrl in feeds) {
 873                                                                                 select.addOption({value: feedUrl, label: feeds[feedUrl]});
 874                                                                                 count++;
 875                                                                         }
 876
 877                                                                         Effect.Appear('feedDlg_feedsContainer', {duration : 0.5});
 878
 879                                                                         break;
 880                                                                 case 5:
 881                                                                         dialog.show_error(__("Couldn't download the specified URL: %s").
 882                                                                                         replace("%s", rc['message']));
 883                                                                         break;
 884                                                                 case 6:
 885                                                                         dialog.show_error(__("XML validation failed: %s").
 886                                                                                         replace("%s", rc['message']));
 887                                                                         break;
 888                                                                         break;
 889                                                                 case 0:
 890                                                                         dialog.show_error(__("You are already subscribed to this feed."));
 891                                                                         break;
 892                                                                 }
 893
 894                                                         } catch (e) {
 895                                                                 exception_error("subscribeToFeed", e, transport);
 896                                                         }
 897
 898                                                 } });
 899
 900                                         }
 901                         },
 902                         href: query});
 903
 904                 dialog.show();
 905         } catch (e) {
 906                 exception_error("quickAddFeed", e);
 907         }
 908 }
 909
 910 function createNewRuleElement(parentNode, replaceNode) {
 911         try {
 912                 var form = document.forms["filter_new_rule_form"];
 913
 914                 //form.reg_exp.value = form.reg_exp.value.replace(/(<([^>]+)>)/ig,"");
 915
 916                 var query = "backend.php?op=pref-filters&method=printrulename&rule="+
 917                         param_escape(dojo.formToJson(form));
 918
 919                 console.log(query);
 920
 921                 new Ajax.Request("backend.php", {
 922                         parameters: query,
 923                         onComplete: function (transport) {
 924                                 try {
 925                                         var li = dojo.create("li");
 926
 927                                         var cb = dojo.create("input", { type: "checkbox" }, li);
 928
 929                                         new dijit.form.CheckBox({
 930                                                 onChange: function() {
 931                                                         toggleSelectListRow2(this) },
 932                                         }, cb);
 933
 934                                         dojo.create("input", { type: "hidden",
 935                                                 name: "rule[]",
 936                                                 value: dojo.formToJson(form) }, li);
 937
 938                                         dojo.create("span", {
 939                                                 onclick: function() {
 940                                                         dijit.byId('filterEditDlg').editRule(this);
 941                                                 },
 942                                                 innerHTML: transport.responseText }, li);
 943
 944                                         if (replaceNode) {
 945                                                 parentNode.replaceChild(li, replaceNode);
 946                                         } else {
 947                                                 parentNode.appendChild(li);
 948                                         }
 949                                 } catch (e) {
 950                                         exception_error("createNewRuleElement", e);
 951                                 }
 952                 } });
 953         } catch (e) {
 954                 exception_error("createNewRuleElement", e);
 955         }
 956 }
 957
 958 function createNewActionElement(parentNode, replaceNode) {
 959         try {
 960                 var form = document.forms["filter_new_action_form"];
 961
 962                 if (form.action_id.value == 7) {
 963                         form.action_param.value = form.action_param_label.value;
 964                 } else if (form.action_id.value == 9) {
 965                         form.action_param.value = form.action_param_plugin.value;
 966                 }
 967
 968                 var query = "backend.php?op=pref-filters&method=printactionname&action="+
 969                         param_escape(dojo.formToJson(form));
 970
 971                 console.log(query);
 972
 973                 new Ajax.Request("backend.php", {
 974                         parameters: query,
 975                         onComplete: function (transport) {
 976                                 try {
 977                                         var li = dojo.create("li");
 978
 979                                         var cb = dojo.create("input", { type: "checkbox" }, li);
 980
 981                                         new dijit.form.CheckBox({
 982                                                 onChange: function() {
 983                                                         toggleSelectListRow2(this) },
 984                                         }, cb);
 985
 986                                         dojo.create("input", { type: "hidden",
 987                                                 name: "action[]",
 988                                                 value: dojo.formToJson(form) }, li);
 989
 990                                         dojo.create("span", {
 991                                                 onclick: function() {
 992                                                         dijit.byId('filterEditDlg').editAction(this);
 993                                                 },
 994                                                 innerHTML: transport.responseText }, li);
 995
 996                                         if (replaceNode) {
 997                                                 parentNode.replaceChild(li, replaceNode);
 998                                         } else {
 999                                                 parentNode.appendChild(li);
1000                                         }
1001
1002                                 } catch (e) {
1003                                         exception_error("createNewActionElement", e);
1004                                 }
1005                         } });
1006         } catch (e) {
1007                 exception_error("createNewActionElement", e);
1008         }
1009 }
1010
1011
1012 function addFilterRule(replaceNode, ruleStr) {
1013         try {
1014                 if (dijit.byId("filterNewRuleDlg"))
1015                         dijit.byId("filterNewRuleDlg").destroyRecursive();
1016
1017                 var query = "backend.php?op=pref-filters&method=newrule&rule=" +
1018                         param_escape(ruleStr);
1019
1020                 var rule_dlg = new dijit.Dialog({
1021                         id: "filterNewRuleDlg",
1022                         title: ruleStr ? __("Edit rule") : __("Add rule"),
1023                         style: "width: 600px",
1024                         execute: function() {
1025                                 if (this.validate()) {
1026                                         createNewRuleElement($("filterDlg_Matches"), replaceNode);
1027                                         this.hide();
1028                                 }
1029                         },
1030                         href: query});
1031
1032                 rule_dlg.show();
1033         } catch (e) {
1034                 exception_error("addFilterRule", e);
1035         }
1036 }
1037
1038 function addFilterAction(replaceNode, actionStr) {
1039         try {
1040                 if (dijit.byId("filterNewActionDlg"))
1041                         dijit.byId("filterNewActionDlg").destroyRecursive();
1042
1043                 var query = "backend.php?op=pref-filters&method=newaction&action=" +
1044                         param_escape(actionStr);
1045
1046                 var rule_dlg = new dijit.Dialog({
1047                         id: "filterNewActionDlg",
1048                         title: actionStr ? __("Edit action") : __("Add action"),
1049                         style: "width: 600px",
1050                         execute: function() {
1051                                 if (this.validate()) {
1052                                         createNewActionElement($("filterDlg_Actions"), replaceNode);
1053                                         this.hide();
1054                                 }
1055                         },
1056                         href: query});
1057
1058                 rule_dlg.show();
1059         } catch (e) {
1060                 exception_error("addFilterAction", e);
1061         }
1062 }
1063
1064 function editFilterTest(query) {
1065         try {
1066
1067                 if (dijit.byId("filterTestDlg"))
1068                         dijit.byId("filterTestDlg").destroyRecursive();
1069
1070                 var test_dlg = new dijit.Dialog({
1071                         id: "filterTestDlg",
1072                         title: "Test Filter",
1073                         style: "width: 600px",
1074                         results: 0,
1075                         limit: 100,
1076                         max_offset: 10000,
1077                         getTestResults: function(query, offset) {
1078                                 var updquery = query + "&offset=" + offset + "&limit=" + test_dlg.limit;
1079
1080                                 console.log("getTestResults:" + offset);
1081
1082                                 new Ajax.Request("backend.php", {
1083                                         parameters: updquery,
1084                                         onComplete: function (transport) {
1085                                                 try {
1086                                                         var result = JSON.parse(transport.responseText);
1087
1088                                                         if (result && dijit.byId("filterTestDlg") && dijit.byId("filterTestDlg").open) {
1089                                                                 test_dlg.results += result.size();
1090
1091                                                                 console.log("got results:" + result.size());
1092
1093                                                                 $("prefFilterProgressMsg").innerHTML = __("Looking for articles (%d processed, %f found)...")
1094                                                                         .replace("%f", test_dlg.results)
1095                                                                         .replace("%d", offset);
1096
1097                                                                 console.log(offset + " " + test_dlg.max_offset);
1098
1099                                                                 for (var i = 0; i < result.size(); i++) {
1100                                                                         var tmp = new Element("table");
1101                                                                         tmp.innerHTML = result[i];
1102                                                                         dojo.parser.parse(tmp);
1103
1104                                                                         $("prefFilterTestResultList").innerHTML += tmp.innerHTML;
1105                                                                 }
1106
1107                                                                 if (test_dlg.results < 30 && offset < test_dlg.max_offset) {
1108
1109                                                                         // get the next batch
1110                                                                         window.setTimeout(function () {
1111                                                                                 test_dlg.getTestResults(query, offset + test_dlg.limit);
1112                                                                         }, 0);
1113
1114                                                                 } else {
1115                                                                         // all done
1116
1117                                                                         Element.hide("prefFilterLoadingIndicator");
1118
1119                                                                         if (test_dlg.results == 0) {
1120                                                                                 $("prefFilterTestResultList").innerHTML = "<tr><td align='center'>No recent articles matching this filter have been found.</td></tr>";
1121                                                                                 $("prefFilterProgressMsg").innerHTML = "Articles matching this filter:";
1122                                                                         } else {
1123                                                                                 $("prefFilterProgressMsg").innerHTML = __("Found %d articles matching this filter:")
1124                                                                                         .replace("%d", test_dlg.results);
1125                                                                         }
1126
1127                                                                 }
1128
1129                                                         } else if (!result) {
1130                                                                 console.log("getTestResults: can't parse results object");
1131
1132                                                                 Element.hide("prefFilterLoadingIndicator");
1133
1134                                                                 notify_error("Error while trying to get filter test results.");
1135
1136                                                         } else {
1137                                                                 console.log("getTestResults: dialog closed, bailing out.");
1138                                                         }
1139                                                 } catch (e) {
1140                                                         exception_error("editFilterTest/inner", e);
1141                                                 }
1142
1143                                         } });
1144                         },
1145                         href: query});
1146
1147                 dojo.connect(test_dlg, "onLoad", null, function(e) {
1148                         test_dlg.getTestResults(query, 0);
1149                 });
1150
1151                 test_dlg.show();
1152
1153         } catch (e) {
1154                 exception_error("editFilterTest", e);
1155         }
1156 }
1157
1158 function quickAddFilter() {
1159         try {
1160                 var query = "";
1161                 if (!inPreferences()) {
1162                         query = "backend.php?op=pref-filters&method=newfilter&feed=" +
1163                                 param_escape(getActiveFeedId()) + "&is_cat=" +
1164                                 param_escape(activeFeedIsCat());
1165                 } else {
1166                         query = "backend.php?op=pref-filters&method=newfilter";
1167                 }
1168
1169                 console.log(query);
1170
1171                 if (dijit.byId("feedEditDlg"))
1172                         dijit.byId("feedEditDlg").destroyRecursive();
1173
1174                 if (dijit.byId("filterEditDlg"))
1175                         dijit.byId("filterEditDlg").destroyRecursive();
1176
1177                 dialog = new dijit.Dialog({
1178                         id: "filterEditDlg",
1179                         title: __("Create Filter"),
1180                         style: "width: 600px",
1181                         test: function() {
1182                                 var query = "backend.php?" + dojo.formToQuery("filter_new_form") + "&savemode=test";
1183
1184                                 editFilterTest(query);
1185                         },
1186                         selectRules: function(select) {
1187                                 $$("#filterDlg_Matches input[type=checkbox]").each(function(e) {
1188                                         e.checked = select;
1189                                         if (select)
1190                                                 e.parentNode.addClassName("Selected");
1191                                         else
1192                                                 e.parentNode.removeClassName("Selected");
1193                                 });
1194                         },
1195                         selectActions: function(select) {
1196                                 $$("#filterDlg_Actions input[type=checkbox]").each(function(e) {
1197                                         e.checked = select;
1198
1199                                         if (select)
1200                                                 e.parentNode.addClassName("Selected");
1201                                         else
1202                                                 e.parentNode.removeClassName("Selected");
1203
1204                                 });
1205                         },
1206                         editRule: function(e) {
1207                                 var li = e.parentNode;
1208                                 var rule = li.getElementsByTagName("INPUT")[1].value;
1209                                 addFilterRule(li, rule);
1210                         },
1211                         editAction: function(e) {
1212                                 var li = e.parentNode;
1213                                 var action = li.getElementsByTagName("INPUT")[1].value;
1214                                 addFilterAction(li, action);
1215                         },
1216                         addAction: function() { addFilterAction(); },
1217                         addRule: function() { addFilterRule(); },
1218                         deleteAction: function() {
1219                                 $$("#filterDlg_Actions li.[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
1220                         },
1221                         deleteRule: function() {
1222                                 $$("#filterDlg_Matches li.[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
1223                         },
1224                         execute: function() {
1225                                 if (this.validate()) {
1226
1227                                         var query = dojo.formToQuery("filter_new_form");
1228
1229                                         console.log(query);
1230
1231                                         new Ajax.Request("backend.php", {
1232                                                 parameters: query,
1233                                                 onComplete: function (transport) {
1234                                                         if (inPreferences()) {
1235                                                                 updateFilterList();
1236                                                         }
1237
1238                                                         dialog.hide();
1239                                         } });
1240                                 }
1241                         },
1242                         href: query});
1243
1244                 if (!inPreferences()) {
1245                         var selectedText = getSelectionText();
1246
1247                         var lh = dojo.connect(dialog, "onLoad", function(){
1248                                 dojo.disconnect(lh);
1249
1250                                 if (selectedText != "") {
1251
1252                                         var feed_id = activeFeedIsCat() ? 'CAT:' + parseInt(getActiveFeedId()) :
1253                                                 getActiveFeedId();
1254
1255                                         var rule = { reg_exp: selectedText, feed_id: feed_id, filter_type: 1 };
1256
1257                                         addFilterRule(null, dojo.toJson(rule));
1258
1259                                 } else {
1260
1261                                         var query = "op=rpc&method=getlinktitlebyid&id=" + getActiveArticleId();
1262
1263                                         new Ajax.Request("backend.php", {
1264                                         parameters: query,
1265                                         onComplete: function(transport) {
1266                                                 var reply = JSON.parse(transport.responseText);
1267
1268                                                 var title = false;
1269
1270                                                 if (reply && reply) title = reply.title;
1271
1272                                                 if (title || getActiveFeedId() || activeFeedIsCat()) {
1273
1274                                                         console.log(title + " " + getActiveFeedId());
1275
1276                                                         var feed_id = activeFeedIsCat() ? 'CAT:' + parseInt(getActiveFeedId()) :
1277                                                                 getActiveFeedId();
1278
1279                                                         var rule = { reg_exp: title, feed_id: feed_id, filter_type: 1 };
1280
1281                                                         addFilterRule(null, dojo.toJson(rule));
1282                                                 }
1283
1284                                         } });
1285
1286                                 }
1287
1288                         });
1289                 }
1290
1291                 dialog.show();
1292
1293         } catch (e) {
1294                 exception_error("quickAddFilter", e);
1295         }
1296 }
1297
1298 function resetPubSub(feed_id, title) {
1299
1300         var msg = __("Reset subscription? Tiny Tiny RSS will try to subscribe to the notification hub again on next feed update.").replace("%s", title);
1301
1302         if (title == undefined || confirm(msg)) {
1303                 notify_progress("Loading, please wait...");
1304
1305                 var query = "?op=pref-feeds&quiet=1&method=resetPubSub&ids=" + feed_id;
1306
1307                 new Ajax.Request("backend.php", {
1308                         parameters: query,
1309                         onComplete: function(transport) {
1310                                 dijit.byId("pubsubReset_Btn").attr('disabled', true);
1311                                 notify_info("Subscription reset.");
1312                         } });
1313         }
1314
1315         return false;
1316 }
1317
1318
1319 function unsubscribeFeed(feed_id, title) {
1320
1321         var msg = __("Unsubscribe from %s?").replace("%s", title);
1322
1323         if (title == undefined || confirm(msg)) {
1324                 notify_progress("Removing feed...");
1325
1326                 var query = "?op=pref-feeds&quiet=1&method=remove&ids=" + feed_id;
1327
1328                 new Ajax.Request("backend.php", {
1329                         parameters: query,
1330                         onComplete: function(transport) {
1331
1332                                         if (dijit.byId("feedEditDlg")) dijit.byId("feedEditDlg").hide();
1333
1334                                         if (inPreferences()) {
1335                                                 updateFeedList();
1336                                         } else {
1337                                                 if (feed_id == getActiveFeedId())
1338                                                         setTimeout(function() { viewfeed({feed:-5}) }, 100);
1339
1340                                                 if (feed_id < 0) updateFeedList();
1341                                         }
1342
1343                                 } });
1344         }
1345
1346         return false;
1347 }
1348
1349
1350 function backend_sanity_check_callback(transport) {
1351
1352         try {
1353
1354                 if (sanity_check_done) {
1355                         fatalError(11, "Sanity check request received twice. This can indicate "+
1356                       "presence of Firebug or some other disrupting extension. "+
1357                                 "Please disable it and try again.");
1358                         return;
1359                 }
1360
1361                 var reply = JSON.parse(transport.responseText);
1362
1363                 if (!reply) {
1364                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
1365                         return;
1366                 }
1367
1368                 var error_code = reply['error']['code'];
1369
1370                 if (error_code && error_code != 0) {
1371                         return fatalError(error_code, reply['error']['message']);
1372                 }
1373
1374                 console.log("sanity check ok");
1375
1376                 var params = reply['init-params'];
1377
1378                 if (params) {
1379                         console.log('reading init-params...');
1380
1381                         for (k in params) {
1382                                 console.log("IP: " + k + " => " + JSON.stringify(params[k]));
1383                                 if (k == "label_base_index") _label_base_index = parseInt(params[k]);
1384                         }
1385
1386                         init_params = params;
1387
1388                         // PluginHost might not be available on non-index pages
1389                         window.PluginHost && PluginHost.run(PluginHost.HOOK_PARAMS_LOADED, init_params);
1390                 }
1391
1392                 sanity_check_done = true;
1393
1394                 init_second_stage();
1395
1396         } catch (e) {
1397                 exception_error("backend_sanity_check_callback", e, transport);
1398         }
1399 }
1400
1401 /*function has_local_storage() {
1402         try {
1403                 return 'sessionStorage' in window && window['sessionStorage'] != null;
1404         } catch (e) {
1405                 return false;
1406         }
1407 } */
1408
1409 function catSelectOnChange(elem) {
1410         try {
1411 /*              var value = elem[elem.selectedIndex].value;
1412                 var def = elem.getAttribute('default');
1413
1414                 if (value == "ADD_CAT") {
1415
1416                         if (def)
1417                                 dropboxSelect(elem, def);
1418                         else
1419                                 elem.selectedIndex = 0;
1420
1421                         quickAddCat(elem);
1422                 } */
1423
1424         } catch (e) {
1425                 exception_error("catSelectOnChange", e);
1426         }
1427 }
1428
1429 function quickAddCat(elem) {
1430         try {
1431                 var cat = prompt(__("Please enter category title:"));
1432
1433                 if (cat) {
1434
1435                         var query = "?op=rpc&method=quickAddCat&cat=" + param_escape(cat);
1436
1437                         notify_progress("Loading, please wait...", true);
1438
1439                         new Ajax.Request("backend.php", {
1440                                 parameters: query,
1441                                 onComplete: function (transport) {
1442                                         var response = transport.responseXML;
1443                                         var select = response.getElementsByTagName("select")[0];
1444                                         var options = select.getElementsByTagName("option");
1445
1446                                         dropbox_replace_options(elem, options);
1447
1448                                         notify('');
1449
1450                         } });
1451
1452                 }
1453
1454         } catch (e) {
1455                 exception_error("quickAddCat", e);
1456         }
1457 }
1458
1459 function genUrlChangeKey(feed, is_cat) {
1460
1461         try {
1462                 var ok = confirm(__("Generate new syndication address for this feed?"));
1463
1464                 if (ok) {
1465
1466                         notify_progress("Trying to change address...", true);
1467
1468                         var query = "?op=pref-feeds&method=regenFeedKey&id=" + param_escape(feed) +
1469                                 "&is_cat=" + param_escape(is_cat);
1470
1471                         new Ajax.Request("backend.php", {
1472                                 parameters: query,
1473                                 onComplete: function(transport) {
1474                                                 var reply = JSON.parse(transport.responseText);
1475                                                 var new_link = reply.link;
1476
1477                                                 var e = $('gen_feed_url');
1478
1479                                                 if (new_link) {
1480
1481                                                         e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
1482                                                                 "&amp;key=" + new_link);
1483
1484                                                         e.href = e.href.replace(/\&key=.*$/,
1485                                                                 "&key=" + new_link);
1486
1487                                                         new Effect.Highlight(e);
1488
1489                                                         notify('');
1490
1491                                                 } else {
1492                                                         notify_error("Could not change feed URL.");
1493                                                 }
1494                                 } });
1495                 }
1496         } catch (e) {
1497                 exception_error("genUrlChangeKey", e);
1498         }
1499         return false;
1500 }
1501
1502 function labelSelectOnChange(elem) {
1503         try {
1504 /*              var value = elem[elem.selectedIndex].value;
1505                 var def = elem.getAttribute('default');
1506
1507                 if (value == "ADD_LABEL") {
1508
1509                         if (def)
1510                                 dropboxSelect(elem, def);
1511                         else
1512                                 elem.selectedIndex = 0;
1513
1514                         addLabel(elem, function(transport) {
1515
1516                                         try {
1517
1518                                                 var response = transport.responseXML;
1519                                                 var select = response.getElementsByTagName("select")[0];
1520                                                 var options = select.getElementsByTagName("option");
1521
1522                                                 dropbox_replace_options(elem, options);
1523
1524                                                 notify('');
1525                                         } catch (e) {
1526                                                 exception_error("addLabel", e);
1527                                         }
1528                         });
1529                 } */
1530
1531         } catch (e) {
1532                 exception_error("labelSelectOnChange", e);
1533         }
1534 }
1535
1536 function dropbox_replace_options(elem, options) {
1537
1538         try {
1539                 while (elem.hasChildNodes())
1540                         elem.removeChild(elem.firstChild);
1541
1542                 var sel_idx = -1;
1543
1544                 for (var i = 0; i < options.length; i++) {
1545                         var text = options[i].firstChild.nodeValue;
1546                         var value = options[i].getAttribute("value");
1547
1548                         if (value == undefined) value = text;
1549
1550                         var issel = options[i].getAttribute("selected") == "1";
1551
1552                         var option = new Option(text, value, issel);
1553
1554                         if (options[i].getAttribute("disabled"))
1555                                 option.setAttribute("disabled", true);
1556
1557                         elem.insert(option);
1558
1559                         if (issel) sel_idx = i;
1560                 }
1561
1562                 // Chrome doesn't seem to just select stuff when you pass new Option(x, y, true)
1563                 if (sel_idx >= 0) elem.selectedIndex = sel_idx;
1564
1565         } catch (e) {
1566                 exception_error("dropbox_replace_options", e);
1567         }
1568 }
1569
1570 // mode = all, none, invert
1571 function selectTableRows(id, mode) {
1572         try {
1573                 var rows = $(id).rows;
1574
1575                 for (var i = 0; i < rows.length; i++) {
1576                         var row = rows[i];
1577                         var cb = false;
1578                         var dcb = false;
1579
1580                         if (row.id && row.className) {
1581                                 var bare_id = row.id.replace(/^[A-Z]*?-/, "");
1582                                 var inputs = rows[i].getElementsByTagName("input");
1583
1584                                 for (var j = 0; j < inputs.length; j++) {
1585                                         var input = inputs[j];
1586
1587                                         if (input.getAttribute("type") == "checkbox" &&
1588                                                         input.id.match(bare_id)) {
1589
1590                                                 cb = input;
1591                                                 dcb = dijit.getEnclosingWidget(cb);
1592                                                 break;
1593                                         }
1594                                 }
1595
1596                                 if (cb || dcb) {
1597                                         var issel = row.hasClassName("Selected");
1598
1599                                         if (mode == "all" && !issel) {
1600                                                 row.addClassName("Selected");
1601                                                 cb.checked = true;
1602                                                 if (dcb) dcb.set("checked", true);
1603                                         } else if (mode == "none" && issel) {
1604                                                 row.removeClassName("Selected");
1605                                                 cb.checked = false;
1606                                                 if (dcb) dcb.set("checked", false);
1607
1608                                         } else if (mode == "invert") {
1609
1610                                                 if (issel) {
1611                                                         row.removeClassName("Selected");
1612                                                         cb.checked = false;
1613                                                         if (dcb) dcb.set("checked", false);
1614                                                 } else {
1615                                                         row.addClassName("Selected");
1616                                                         cb.checked = true;
1617                                                         if (dcb) dcb.set("checked", true);
1618                                                 }
1619                                         }
1620                                 }
1621                         }
1622                 }
1623
1624         } catch (e) {
1625                 exception_error("selectTableRows", e);
1626
1627         }
1628 }
1629
1630 function getSelectedTableRowIds(id) {
1631         var rows = [];
1632
1633         try {
1634                 var elem_rows = $(id).rows;
1635
1636                 for (var i = 0; i < elem_rows.length; i++) {
1637                         if (elem_rows[i].hasClassName("Selected")) {
1638                                 var bare_id = elem_rows[i].id.replace(/^[A-Z]*?-/, "");
1639                                 rows.push(bare_id);
1640                         }
1641                 }
1642
1643         } catch (e) {
1644                 exception_error("getSelectedTableRowIds", e);
1645         }
1646
1647         return rows;
1648 }
1649
1650 function editFeed(feed, event) {
1651         try {
1652                 if (feed <= 0)
1653                         return alert(__("You can't edit this kind of feed."));
1654
1655                 var query = "backend.php?op=pref-feeds&method=editfeed&id=" +
1656                         param_escape(feed);
1657
1658                 console.log(query);
1659
1660                 if (dijit.byId("filterEditDlg"))
1661                         dijit.byId("filterEditDlg").destroyRecursive();
1662
1663                 if (dijit.byId("feedEditDlg"))
1664                         dijit.byId("feedEditDlg").destroyRecursive();
1665
1666                 dialog = new dijit.Dialog({
1667                         id: "feedEditDlg",
1668                         title: __("Edit Feed"),
1669                         style: "width: 600px",
1670                         execute: function() {
1671                                 if (this.validate()) {
1672 //                                      console.log(dojo.objectToQuery(this.attr('value')));
1673
1674                                         notify_progress("Saving data...", true);
1675
1676                                         new Ajax.Request("backend.php", {
1677                                                 parameters: dojo.objectToQuery(dialog.attr('value')),
1678                                                 onComplete: function(transport) {
1679                                                         dialog.hide();
1680                                                         notify('');
1681                                                         updateFeedList();
1682                                         }});
1683                                 }
1684                         },
1685                         href: query});
1686
1687                 dialog.show();
1688
1689         } catch (e) {
1690                 exception_error("editFeed", e);
1691         }
1692 }
1693
1694 function feedBrowser() {
1695         try {
1696                 var query = "backend.php?op=feeds&method=feedBrowser";
1697
1698                 if (dijit.byId("feedAddDlg"))
1699                         dijit.byId("feedAddDlg").hide();
1700
1701                 if (dijit.byId("feedBrowserDlg"))
1702                         dijit.byId("feedBrowserDlg").destroyRecursive();
1703
1704                 var dialog = new dijit.Dialog({
1705                         id: "feedBrowserDlg",
1706                         title: __("More Feeds"),
1707                         style: "width: 600px",
1708                         getSelectedFeedIds: function() {
1709                                 var list = $$("#browseFeedList li[id*=FBROW]");
1710                                 var selected = new Array();
1711
1712                                 list.each(function(child) {
1713                                         var id = child.id.replace("FBROW-", "");
1714
1715                                         if (child.hasClassName('Selected')) {
1716                                                 selected.push(id);
1717                                         }
1718                                 });
1719
1720                                 return selected;
1721                         },
1722                         getSelectedFeeds: function() {
1723                                 var list = $$("#browseFeedList li.Selected");
1724                                 var selected = new Array();
1725
1726                                 list.each(function(child) {
1727                                         var title = child.getElementsBySelector("span.fb_feedTitle")[0].innerHTML;
1728                                         var url = child.getElementsBySelector("a.fb_feedUrl")[0].href;
1729
1730                                         selected.push([title,url]);
1731
1732                                 });
1733
1734                                 return selected;
1735                         },
1736
1737                         subscribe: function() {
1738                                 var mode = this.attr('value').mode;
1739                                 var selected = [];
1740
1741                                 if (mode == "1")
1742                                         selected = this.getSelectedFeeds();
1743                                 else
1744                                         selected = this.getSelectedFeedIds();
1745
1746                                 if (selected.length > 0) {
1747                                         dijit.byId("feedBrowserDlg").hide();
1748
1749                                         notify_progress("Loading, please wait...", true);
1750
1751                                         // we use dojo.toJson instead of JSON.stringify because
1752                                         // it somehow escapes everything TWICE, at least in Chrome 9
1753
1754                                         var query = "?op=rpc&method=massSubscribe&payload="+
1755                                                 param_escape(dojo.toJson(selected)) + "&mode=" + param_escape(mode);
1756
1757                                         console.log(query);
1758
1759                                         new Ajax.Request("backend.php", {
1760                                                 parameters: query,
1761                                                 onComplete: function(transport) {
1762                                                         notify('');
1763                                                         updateFeedList();
1764                                                 } });
1765
1766                                 } else {
1767                                         alert(__("No feeds are selected."));
1768                                 }
1769
1770                         },
1771                         update: function() {
1772                                 var query = dojo.objectToQuery(dialog.attr('value'));
1773
1774                                 Element.show('feed_browser_spinner');
1775
1776                                 new Ajax.Request("backend.php", {
1777                                         parameters: query,
1778                                         onComplete: function(transport) {
1779                                                 notify('');
1780
1781                                                 Element.hide('feed_browser_spinner');
1782
1783                                                 var c = $("browseFeedList");
1784
1785                                                 var reply = JSON.parse(transport.responseText);
1786
1787                                                 var r = reply['content'];
1788                                                 var mode = reply['mode'];
1789
1790                                                 if (c && r) {
1791                                                         c.innerHTML = r;
1792                                                 }
1793
1794                                                 dojo.parser.parse("browseFeedList");
1795
1796                                                 if (mode == 2) {
1797                                                         Element.show(dijit.byId('feed_archive_remove').domNode);
1798                                                 } else {
1799                                                         Element.hide(dijit.byId('feed_archive_remove').domNode);
1800                                                 }
1801
1802                                         } });
1803                         },
1804                         removeFromArchive: function() {
1805                                 var selected = this.getSelectedFeedIds();
1806
1807                                 if (selected.length > 0) {
1808
1809                                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1810
1811                                         if (confirm(pr)) {
1812                                                 Element.show('feed_browser_spinner');
1813
1814                                                 var query = "?op=rpc&method=remarchive&ids=" +
1815                                                         param_escape(selected.toString());;
1816
1817                                                 new Ajax.Request("backend.php", {
1818                                                         parameters: query,
1819                                                         onComplete: function(transport) {
1820                                                                 dialog.update();
1821                                                         } });
1822                                         }
1823                                 }
1824                         },
1825                         execute: function() {
1826                                 if (this.validate()) {
1827                                         this.subscribe();
1828                                 }
1829                         },
1830                         href: query});
1831
1832                 dialog.show();
1833
1834         } catch (e) {
1835                 exception_error("editFeed", e);
1836         }
1837 }
1838
1839 function showFeedsWithErrors() {
1840         try {
1841                 var query = "backend.php?op=pref-feeds&method=feedsWithErrors";
1842
1843                 if (dijit.byId("errorFeedsDlg"))
1844                         dijit.byId("errorFeedsDlg").destroyRecursive();
1845
1846                 dialog = new dijit.Dialog({
1847                         id: "errorFeedsDlg",
1848                         title: __("Feeds with update errors"),
1849                         style: "width: 600px",
1850                         getSelectedFeeds: function() {
1851                                 return getSelectedTableRowIds("prefErrorFeedList");
1852                         },
1853                         removeSelected: function() {
1854                                 var sel_rows = this.getSelectedFeeds();
1855
1856                                 console.log(sel_rows);
1857
1858                                 if (sel_rows.length > 0) {
1859                                         var ok = confirm(__("Remove selected feeds?"));
1860
1861                                         if (ok) {
1862                                                 notify_progress("Removing selected feeds...", true);
1863
1864                                                 var query = "?op=pref-feeds&method=remove&ids="+
1865                                                         param_escape(sel_rows.toString());
1866
1867                                                 new Ajax.Request("backend.php", {
1868                                                         parameters: query,
1869                                                         onComplete: function(transport) {
1870                                                                 notify('');
1871                                                                 dialog.hide();
1872                                                                 updateFeedList();
1873                                                         } });
1874                                         }
1875
1876                                 } else {
1877                                         alert(__("No feeds are selected."));
1878                                 }
1879                         },
1880                         execute: function() {
1881                                 if (this.validate()) {
1882                                 }
1883                         },
1884                         href: query});
1885
1886                 dialog.show();
1887
1888         } catch (e) {
1889                 exception_error("showFeedsWithErrors", e);
1890         }
1891
1892 }
1893
1894 /* new support functions for SelectByTag */
1895
1896 function get_all_tags(selObj){
1897         try {
1898                 if( !selObj ) return "";
1899
1900                 var result = "";
1901                 var len = selObj.options.length;
1902
1903                 for (var i=0; i < len; i++){
1904                         if (selObj.options[i].selected) {
1905                                 result += selObj[i].value + "%2C";   // is really a comma
1906                         }
1907                 }
1908
1909                 if (result.length > 0){
1910                         result = result.substr(0, result.length-3);  // remove trailing %2C
1911                 }
1912
1913                 return(result);
1914
1915         } catch (e) {
1916                 exception_error("get_all_tags", e);
1917         }
1918 }
1919
1920 function get_radio_checked(radioObj) {
1921         try {
1922                 if (!radioObj) return "";
1923
1924                 var len = radioObj.length;
1925
1926                 if (len == undefined){
1927                         if(radioObj.checked){
1928                                 return(radioObj.value);
1929                         } else {
1930                                 return("");
1931                         }
1932                 }
1933
1934                 for( var i=0; i < len; i++ ){
1935                         if( radioObj[i].checked ){
1936                                 return( radioObj[i].value);
1937                         }
1938                 }
1939
1940         } catch (e) {
1941                 exception_error("get_radio_checked", e);
1942         }
1943         return("");
1944 }
1945
1946 function get_timestamp() {
1947         var date = new Date();
1948         return Math.round(date.getTime() / 1000);
1949 }
1950
1951 function helpDialog(topic) {
1952         try {
1953                 var query = "backend.php?op=backend&method=help&topic=" + param_escape(topic);
1954
1955                 if (dijit.byId("helpDlg"))
1956                         dijit.byId("helpDlg").destroyRecursive();
1957
1958                 dialog = new dijit.Dialog({
1959                         id: "helpDlg",
1960                         title: __("Help"),
1961                         style: "width: 600px",
1962                         href: query,
1963                 });
1964
1965                 dialog.show();
1966
1967         } catch (e) {
1968                 exception_error("helpDialog", e);
1969         }
1970 }
1971
1972 function htmlspecialchars_decode (string, quote_style) {
1973   // http://kevin.vanzonneveld.net
1974   // +   original by: Mirek Slugen
1975   // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
1976   // +   bugfixed by: Mateusz "loonquawl" Zalega
1977   // +      input by: ReverseSyntax
1978   // +      input by: Slawomir Kaniecki
1979   // +      input by: Scott Cariss
1980   // +      input by: Francois
1981   // +   bugfixed by: Onno Marsman
1982   // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
1983   // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
1984   // +      input by: Ratheous
1985   // +      input by: Mailfaker (http://www.weedem.fr/)
1986   // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
1987   // +    bugfixed by: Brett Zamir (http://brett-zamir.me)
1988   // *     example 1: htmlspecialchars_decode("<p>this -&gt; &quot;</p>", 'ENT_NOQUOTES');
1989   // *     returns 1: '<p>this -> &quot;</p>'
1990   // *     example 2: htmlspecialchars_decode("&amp;quot;");
1991   // *     returns 2: '&quot;'
1992   var optTemp = 0,
1993     i = 0,
1994     noquotes = false;
1995   if (typeof quote_style === 'undefined') {
1996     quote_style = 2;
1997   }
1998   string = string.toString().replace(/&lt;/g, '<').replace(/&gt;/g, '>');
1999   var OPTS = {
2000     'ENT_NOQUOTES': 0,
2001     'ENT_HTML_QUOTE_SINGLE': 1,
2002     'ENT_HTML_QUOTE_DOUBLE': 2,
2003     'ENT_COMPAT': 2,
2004     'ENT_QUOTES': 3,
2005     'ENT_IGNORE': 4
2006   };
2007   if (quote_style === 0) {
2008     noquotes = true;
2009   }
2010   if (typeof quote_style !== 'number') { // Allow for a single string or an array of string flags
2011     quote_style = [].concat(quote_style);
2012     for (i = 0; i < quote_style.length; i++) {
2013       // Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
2014       if (OPTS[quote_style[i]] === 0) {
2015         noquotes = true;
2016       } else if (OPTS[quote_style[i]]) {
2017         optTemp = optTemp | OPTS[quote_style[i]];
2018       }
2019     }
2020     quote_style = optTemp;
2021   }
2022   if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
2023     string = string.replace(/&#0*39;/g, "'"); // PHP doesn't currently escape if more than one 0, but it should
2024     // string = string.replace(/&apos;|&#x0*27;/g, "'"); // This would also be useful here, but not a part of PHP
2025   }
2026   if (!noquotes) {
2027     string = string.replace(/&quot;/g, '"');
2028   }
2029   // Put this in last place to avoid escape being double-decoded
2030   string = string.replace(/&amp;/g, '&');
2031
2032   return string;
2033 }
2034
2035
2036 function label_to_feed_id(label) {
2037         return _label_base_index - 1 - Math.abs(label);
2038 }
2039
2040 function feed_to_label_id(feed) {
2041         return _label_base_index - 1 + Math.abs(feed);
2042 }
2043
2044 // http://stackoverflow.com/questions/6251937/how-to-get-selecteduser-highlighted-text-in-contenteditable-element-and-replac
2045
2046 function getSelectionText() {
2047         var text = "";
2048
2049         if (typeof window.getSelection != "undefined") {
2050                 var sel = window.getSelection();
2051                 if (sel.rangeCount) {
2052                         var container = document.createElement("div");
2053                         for (var i = 0, len = sel.rangeCount; i < len; ++i) {
2054                                 container.appendChild(sel.getRangeAt(i).cloneContents());
2055                         }
2056                         text = container.innerHTML;
2057                 }
2058         } else if (typeof document.selection != "undefined") {
2059                 if (document.selection.type == "Text") {
2060                         text = document.selection.createRange().textText;
2061                 }
2062         }
2063
2064         return text.stripTags();
2065 }
2066
2067 function openUrlPopup(url) {
2068         var w = window.open("");
2069
2070         w.opener = null;
2071         w.location = url;
2072 }
2073 function openArticlePopup(id) {
2074         var w = window.open("",
2075                 "ttrss_article_popup",
2076                 "height=900,width=900,resizable=yes,status=no,location=no,menubar=no,directories=no,scrollbars=yes,toolbar=no");
2077
2078         w.opener = null;
2079         w.location = "backend.php?op=article&method=view&mode=raw&html=1&zoom=1&id=" + id + "&csrf_token=" + getInitParam("csrf_token");
2080 }