functions.js

   1 var notify_silent = false;
   2 var loading_progress = 0;
   3 var sanity_check_done = false;
   4
   5 /* add method to remove element from array */
   6
   7 Array.prototype.remove = function(s) {
   8         for (var i=0; i < this.length; i++) {
   9                 if (s == this[i]) this.splice(i, 1);
  10         }
  11 }
  12
  13 /* create console.log if it doesn't exist */
  14
  15 if (!window.console) console = {};
  16 console.log = console.log || function(msg) { };
  17 console.warn = console.warn || function(msg) { };
  18 console.error = console.error || function(msg) { };
  19
  20 function exception_error(location, e, ext_info) {
  21         var msg = format_exception_error(location, e);
  22
  23         if (!ext_info) ext_info = false;
  24
  25         try {
  26
  27                 if (ext_info) {
  28                         if (ext_info.responseText) {
  29                                 ext_info = ext_info.responseText;
  30                         }
  31                 }
  32
  33                 var content = "<div class=\"fatalError\">" +
  34                         "<pre>" + msg + "</pre>";
  35
  36                 if (ext_info) {
  37                         content += "<div><b>Additional information:</b></div>" +
  38                         "<textarea readonly=\"1\">" + ext_info + "</textarea>";
  39                 }
  40
  41                 content += "<div><b>Stack trace:</b></div>" +
  42                         "<textarea readonly=\"1\">" + e.stack + "</textarea>";
  43
  44                 content += "</div>";
  45
  46                 content += "<div class='dlgButtons'>";
  47
  48                 content += "<button dojoType=\"dijit.form.Button\""+
  49                                 "onclick=\"dijit.byId('exceptionDlg').report()\">" +
  50                                 __('Report to tt-rss.org') + "</button> ";
  51                 content += "<button dojoType=\"dijit.form.Button\" "+
  52                                 "onclick=\"dijit.byId('exceptionDlg').hide()\">" +
  53                                 __('Close') + "</button>";
  54                 content += "</div>";
  55
  56
  57                 var dialog = new dijit.Dialog({
  58                         id: "exceptionDlg",
  59                         title: "Unhandled exception",
  60                         style: "width: 600px",
  61                         report: function() {
  62                                 if (confirm(__("Are you sure to report this exception to tt-rss.org? The report will include your browser information. Your IP would be saved in the database."))) {
  63
  64                                         var params = $H({
  65                                                 message: msg,
  66                                                 xinfo: ext_info,
  67                                                 stack: e.stack,
  68                                                 browserName: navigator.appName,
  69                                                 browserVersion: navigator.appVersion,
  70                                                 browserPlatform: navigator.platform,
  71                                                 browserCookies: navigator.cookieEnabled,
  72                                         });
  73
  74                                         var url = "http://tt-rss.org/report.php?" + params.toQueryString();
  75
  76                                         window.open(url);
  77
  78                                 }
  79                         },
  80                         content: content});
  81
  82                 dialog.show();
  83
  84         } catch (e) {
  85                 alert(msg);
  86         }
  87
  88 }
  89
  90 function format_exception_error(location, e) {
  91         var msg;
  92
  93         if (e.fileName) {
  94                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  95
  96                 msg = "Exception: " + e.name + ", " + e.message +
  97                         "\nFunction: " + location + "()" +
  98                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  99
 100         } else if (e.description) {
 101                 msg = "Exception: " + e.description + "\nFunction: " + location + "()";
 102         } else {
 103                 msg = "Exception: " + e + "\nFunction: " + location + "()";
 104         }
 105
 106         console.error("EXCEPTION: " + msg);
 107
 108         return msg;
 109 }
 110
 111 function param_escape(arg) {
 112         if (typeof encodeURIComponent != 'undefined')
 113                 return encodeURIComponent(arg);
 114         else
 115                 return escape(arg);
 116 }
 117
 118 function param_unescape(arg) {
 119         if (typeof decodeURIComponent != 'undefined')
 120                 return decodeURIComponent(arg);
 121         else
 122                 return unescape(arg);
 123 }
 124
 125 var notify_hide_timerid = false;
 126
 127 function hide_notify() {
 128         var n = $("notify");
 129         if (n) {
 130                 n.style.display = "none";
 131         }
 132 }
 133
 134 function notify_silent_next() {
 135         notify_silent = true;
 136 }
 137
 138 function notify_real(msg, no_hide, n_type) {
 139
 140         if (notify_silent) {
 141                 notify_silent = false;
 142                 return;
 143         }
 144
 145         var n = $("notify");
 146         var nb = $("notify_body");
 147
 148         if (!n || !nb) return;
 149
 150         if (notify_hide_timerid) {
 151                 window.clearTimeout(notify_hide_timerid);
 152         }
 153
 154         if (msg == "") {
 155                 if (n.style.display == "block") {
 156                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 157                 }
 158                 return;
 159         } else {
 160                 n.style.display = "block";
 161         }
 162
 163         /* types:
 164
 165                 1 - generic
 166                 2 - progress
 167                 3 - error
 168                 4 - info
 169
 170         */
 171
 172         if (typeof __ != 'undefined') {
 173                 msg = __(msg);
 174         }
 175
 176         if (n_type == 1) {
 177                 n.className = "notify";
 178         } else if (n_type == 2) {
 179                 n.className = "notifyProgress";
 180                 msg = "<img src='"+getInitParam("sign_progress")+"'> " + msg;
 181         } else if (n_type == 3) {
 182                 n.className = "notifyError";
 183                 msg = "<img src='"+getInitParam("sign_excl")+"'> " + msg;
 184         } else if (n_type == 4) {
 185                 n.className = "notifyInfo";
 186                 msg = "<img src='"+getInitParam("sign_info")+"'> " + msg;
 187         }
 188
 189 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 190
 191         nb.innerHTML = msg;
 192
 193         if (!no_hide) {
 194                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 195         }
 196 }
 197
 198 function notify(msg, no_hide) {
 199         notify_real(msg, no_hide, 1);
 200 }
 201
 202 function notify_progress(msg, no_hide) {
 203         notify_real(msg, no_hide, 2);
 204 }
 205
 206 function notify_error(msg, no_hide) {
 207         notify_real(msg, no_hide, 3);
 208
 209 }
 210
 211 function notify_info(msg, no_hide) {
 212         notify_real(msg, no_hide, 4);
 213 }
 214
 215 function setCookie(name, value, lifetime, path, domain, secure) {
 216
 217         var d = false;
 218
 219         if (lifetime) {
 220                 d = new Date();
 221                 d.setTime(d.getTime() + (lifetime * 1000));
 222         }
 223
 224         console.log("setCookie: " + name + " => " + value + ": " + d);
 225
 226         int_setCookie(name, value, d, path, domain, secure);
 227
 228 }
 229
 230 function int_setCookie(name, value, expires, path, domain, secure) {
 231         document.cookie= name + "=" + escape(value) +
 232                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 233                 ((path) ? "; path=" + path : "") +
 234                 ((domain) ? "; domain=" + domain : "") +
 235                 ((secure) ? "; secure" : "");
 236 }
 237
 238 function delCookie(name, path, domain) {
 239         if (getCookie(name)) {
 240                 document.cookie = name + "=" +
 241                 ((path) ? ";path=" + path : "") +
 242                 ((domain) ? ";domain=" + domain : "" ) +
 243                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 244         }
 245 }
 246
 247
 248 function getCookie(name) {
 249
 250         var dc = document.cookie;
 251         var prefix = name + "=";
 252         var begin = dc.indexOf("; " + prefix);
 253         if (begin == -1) {
 254             begin = dc.indexOf(prefix);
 255             if (begin != 0) return null;
 256         }
 257         else {
 258             begin += 2;
 259         }
 260         var end = document.cookie.indexOf(";", begin);
 261         if (end == -1) {
 262             end = dc.length;
 263         }
 264         return unescape(dc.substring(begin + prefix.length, end));
 265 }
 266
 267 function gotoPreferences() {
 268         document.location.href = "prefs.php";
 269 }
 270
 271 function gotoMain() {
 272         document.location.href = "tt-rss.php";
 273 }
 274
 275 function gotoExportOpml() {
 276         document.location.href = "opml.php?op=Export";
 277 }
 278
 279
 280 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 281   * * @author Sundar Dorai-Raj
 282   * * Email: sdoraira@vt.edu
 283   * * This program is free software; you can redistribute it and/or
 284   * * modify it under the terms of the GNU General Public License
 285   * * as published by the Free Software Foundation; either version 2
 286   * * of the License, or (at your option) any later version,
 287   * * provided that any use properly credits the author.
 288   * * This program is distributed in the hope that it will be useful,
 289   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 290   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 291   * * GNU General Public License for more details at http://www.gnu.org * * */
 292
 293   var numbers=".0123456789";
 294   function isNumeric(x) {
 295     // is x a String or a character?
 296     if(x.length>1) {
 297       // remove negative sign
 298       x=Math.abs(x)+"";
 299       for(j=0;j<x.length;j++) {
 300         // call isNumeric recursively for each character
 301         number=isNumeric(x.substring(j,j+1));
 302         if(!number) return number;
 303       }
 304       return number;
 305     }
 306     else {
 307       // if x is number return true
 308       if(numbers.indexOf(x)>=0) return true;
 309       return false;
 310     }
 311   }
 312
 313
 314 function toggleSelectRowById(sender, id) {
 315         var row = $(id);
 316         return toggleSelectRow(sender, row);
 317 }
 318
 319 function toggleSelectListRow(sender) {
 320         var row = sender.parentNode;
 321         return toggleSelectRow(sender, row);
 322 }
 323
 324 /* this is for dijit Checkbox */
 325 function toggleSelectListRow2(sender) {
 326         var row = sender.domNode.parentNode;
 327         return toggleSelectRow(sender, row);
 328 }
 329
 330 function tSR(sender, row) {
 331         return toggleSelectRow(sender, row);
 332 }
 333
 334 /* this is for dijit Checkbox */
 335 function toggleSelectRow2(sender, row) {
 336
 337         if (!row) row = sender.domNode.parentNode.parentNode;
 338
 339         if (sender.checked && !row.hasClassName('Selected'))
 340                 row.addClassName('Selected');
 341         else
 342                 row.removeClassName('Selected');
 343 }
 344
 345
 346 function toggleSelectRow(sender, row) {
 347
 348         if (!row) row = sender.parentNode.parentNode;
 349
 350         if (sender.checked && !row.hasClassName('Selected'))
 351                 row.addClassName('Selected');
 352         else
 353                 row.removeClassName('Selected');
 354 }
 355
 356 function checkboxToggleElement(elem, id) {
 357         if (elem.checked) {
 358                 Effect.Appear(id, {duration : 0.5});
 359         } else {
 360                 Effect.Fade(id, {duration : 0.5});
 361         }
 362 }
 363
 364 function dropboxSelect(e, v) {
 365         for (i = 0; i < e.length; i++) {
 366                 if (e[i].value == v) {
 367                         e.selectedIndex = i;
 368                         break;
 369                 }
 370         }
 371 }
 372
 373 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
 374 // bugfixed just a little bit :-)
 375 function getURLParam(strParamName){
 376   var strReturn = "";
 377   var strHref = window.location.href;
 378
 379   if (strHref.indexOf("#") == strHref.length-1) {
 380                 strHref = strHref.substring(0, strHref.length-1);
 381   }
 382
 383   if ( strHref.indexOf("?") > -1 ){
 384     var strQueryString = strHref.substr(strHref.indexOf("?"));
 385     var aQueryString = strQueryString.split("&");
 386     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
 387       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
 388         var aParam = aQueryString[iParam].split("=");
 389         strReturn = aParam[1];
 390         break;
 391       }
 392     }
 393   }
 394   return strReturn;
 395 }
 396
 397 function leading_zero(p) {
 398         var s = String(p);
 399         if (s.length == 1) s = "0" + s;
 400         return s;
 401 }
 402
 403 function make_timestamp() {
 404         var d = new Date();
 405
 406         return leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
 407                         ":" + leading_zero(d.getSeconds());
 408 }
 409
 410
 411 function closeErrorBox() {
 412
 413         if (Element.visible("errorBoxShadow")) {
 414                 Element.hide("dialog_overlay");
 415                 Element.hide("errorBoxShadow");
 416         }
 417
 418         return false;
 419 }
 420
 421 function closeInfoBox(cleanup) {
 422         try {
 423                 dialog = dijit.byId("infoBox");
 424
 425                 if (dialog)     dialog.hide();
 426
 427         } catch (e) {
 428                 //exception_error("closeInfoBox", e);
 429         }
 430         return false;
 431 }
 432
 433
 434 function displayDlg(id, param, callback) {
 435
 436         notify_progress("Loading, please wait...", true);
 437
 438         var query = "?op=dlg&id=" +
 439                 param_escape(id) + "&param=" + param_escape(param);
 440
 441         new Ajax.Request("backend.php", {
 442                 parameters: query,
 443                 onComplete: function (transport) {
 444                         infobox_callback2(transport);
 445                         if (callback) callback(transport);
 446                 } });
 447
 448         return false;
 449 }
 450
 451 function infobox_callback2(transport) {
 452         try {
 453                 var dialog = false;
 454
 455                 if (dijit.byId("infoBox")) {
 456                         dialog = dijit.byId("infoBox");
 457                 }
 458
 459                 //console.log("infobox_callback2");
 460                 notify('');
 461
 462                 var content;
 463                 var dtitle = "Dialog";
 464
 465                 var dlg = transport.responseXML.getElementsByTagName("dlg")[0];
 466
 467                 var title = transport.responseXML.getElementsByTagName("title")[0];
 468                 if (title)
 469                         title = title.firstChild.nodeValue;
 470
 471                 var content = transport.responseXML.getElementsByTagName("content")[0];
 472
 473                 content = content.firstChild.nodeValue;
 474
 475                 if (!dialog) {
 476                         dialog = new dijit.Dialog({
 477                                 title: title,
 478                                 id: 'infoBox',
 479                                 style: "width: 600px",
 480                                 onCancel: function() {
 481                                         return true;
 482                                 },
 483                                 onExecute: function() {
 484                                         return true;
 485                                 },
 486                                 onClose: function() {
 487                                         return true;
 488                                         },
 489                                 content: content});
 490                 } else {
 491                         dialog.attr('title', title);
 492                         dialog.attr('content', content);
 493                 }
 494
 495                 dialog.show();
 496
 497                 notify("");
 498         } catch (e) {
 499                 exception_error("infobox_callback2", e);
 500         }
 501 }
 502
 503 function filterCR(e, f)
 504 {
 505      var key;
 506
 507      if(window.event)
 508           key = window.event.keyCode;     //IE
 509      else
 510           key = e.which;     //firefox
 511
 512         if (key == 13) {
 513                 if (typeof f != 'undefined') {
 514                         f();
 515                         return false;
 516                 } else {
 517                         return false;
 518                 }
 519         } else {
 520                 return true;
 521         }
 522 }
 523
 524 function getInitParam(key) {
 525         return init_params[key];
 526 }
 527
 528 function setInitParam(key, value) {
 529         init_params[key] = value;
 530 }
 531
 532 function fatalError(code, msg, ext_info) {
 533         try {
 534
 535                 if (code == 6) {
 536                         window.location.href = "tt-rss.php";
 537                 } else if (code == 5) {
 538                         window.location.href = "db-updater.php";
 539                 } else {
 540
 541                         if (msg == "") msg = "Unknown error";
 542
 543                         if (ext_info) {
 544                                 if (ext_info.responseText) {
 545                                         ext_info = ext_info.responseText;
 546                                 }
 547                         }
 548
 549                         if (ERRORS && ERRORS[code] && !msg) {
 550                                 msg = ERRORS[code];
 551                         }
 552
 553                         var content = "<div><b>Error code:</b> " + code + "</div>" +
 554                                 "<p>" + msg + "</p>";
 555
 556                         if (ext_info) {
 557                                 content = content + "<div><b>Additional information:</b></div>" +
 558                                         "<textarea style='width: 100%' readonly=\"1\">" +
 559                                         ext_info + "</textarea>";
 560                         }
 561
 562                         var dialog = new dijit.Dialog({
 563                                 title: "Fatal error",
 564                                 style: "width: 600px",
 565                                 content: content});
 566
 567                         dialog.show();
 568
 569                 }
 570
 571                 return false;
 572
 573         } catch (e) {
 574                 exception_error("fatalError", e);
 575         }
 576 }
 577
 578 function filterDlgCheckType(sender) {
 579
 580         try {
 581
 582                 var ftype = sender.value;
 583
 584                 // if selected filter type is 5 (Date) enable the modifier dropbox
 585                 if (ftype == 5) {
 586                         Element.show("filterDlg_dateModBox");
 587                         Element.show("filterDlg_dateChkBox");
 588                 } else {
 589                         Element.hide("filterDlg_dateModBox");
 590                         Element.hide("filterDlg_dateChkBox");
 591
 592                 }
 593
 594         } catch (e) {
 595                 exception_error("filterDlgCheckType", e);
 596         }
 597
 598 }
 599
 600 function filterDlgCheckAction(sender) {
 601
 602         try {
 603
 604                 var action = sender.value;
 605
 606                 var action_param = $("filterDlg_paramBox");
 607
 608                 if (!action_param) {
 609                         console.log("filterDlgCheckAction: can't find action param box!");
 610                         return;
 611                 }
 612
 613                 // if selected action supports parameters, enable params field
 614                 if (action == 4 || action == 6 || action == 7) {
 615                         new Effect.Appear(action_param, {duration : 0.5});
 616                         if (action != 7) {
 617                                 Element.show(dijit.byId("filterDlg_actionParam").domNode);
 618                                 Element.hide(dijit.byId("filterDlg_actionParamLabel").domNode);
 619                         } else {
 620                                 Element.show(dijit.byId("filterDlg_actionParamLabel").domNode);
 621                                 Element.hide(dijit.byId("filterDlg_actionParam").domNode);
 622                         }
 623                 } else {
 624                         Element.hide(action_param);
 625                 }
 626
 627         } catch (e) {
 628                 exception_error("filterDlgCheckAction", e);
 629         }
 630
 631 }
 632
 633 function filterDlgCheckDate() {
 634         try {
 635                 var dialog = dijit.byId("filterEditDlg");
 636
 637                 var reg_exp = dialog.attr('value').reg_exp;
 638
 639                 var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
 640
 641                 new Ajax.Request("backend.php", {
 642                         parameters: query,
 643                         onComplete: function(transport) {
 644
 645                                 var reply = JSON.parse(transport.responseText);
 646
 647                                 if (reply['result'] == true) {
 648                                         alert(__("Date syntax appears to be correct."));
 649                                         return;
 650                                 } else {
 651                                         alert(__("Date syntax is incorrect."));
 652                                 }
 653
 654                         } });
 655
 656
 657         } catch (e) {
 658                 exception_error("filterDlgCheckDate", e);
 659         }
 660 }
 661
 662 function explainError(code) {
 663         return displayDlg("explainError", code);
 664 }
 665
 666 function displayHelpInfobox(topic_id) {
 667
 668         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
 669
 670         var w = window.open(url, "ttrss_help",
 671                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
 672
 673 }
 674
 675 function loading_set_progress(p) {
 676         try {
 677                 loading_progress += p;
 678
 679                 if (dijit.byId("loading_bar"))
 680                         dijit.byId("loading_bar").update({progress: loading_progress});
 681
 682                 if (loading_progress >= 90)
 683                         remove_splash();
 684
 685         } catch (e) {
 686                 exception_error("loading_set_progress", e);
 687         }
 688 }
 689
 690 function remove_splash() {
 691
 692         if (Element.visible("overlay")) {
 693                 console.log("about to remove splash, OMG!");
 694                 Element.hide("overlay");
 695                 console.log("removed splash!");
 696         }
 697 }
 698
 699 function transport_error_check(transport) {
 700         try {
 701                 if (transport.responseXML) {
 702                         var error = transport.responseXML.getElementsByTagName("error")[0];
 703
 704                         if (error) {
 705                                 var code = error.getAttribute("error-code");
 706                                 var msg = error.getAttribute("error-msg");
 707                                 if (code != 0) {
 708                                         fatalError(code, msg);
 709                                         return false;
 710                                 }
 711                         }
 712                 }
 713         } catch (e) {
 714                 exception_error("check_for_error_xml", e);
 715         }
 716         return true;
 717 }
 718
 719 function strip_tags(s) {
 720         return s.replace(/<\/?[^>]+(>|$)/g, "");
 721 }
 722
 723 function truncate_string(s, length) {
 724         if (!length) length = 30;
 725         var tmp = s.substring(0, length);
 726         if (s.length > length) tmp += "&hellip;";
 727         return tmp;
 728 }
 729
 730 function hotkey_prefix_timeout() {
 731         try {
 732
 733                 var date = new Date();
 734                 var ts = Math.round(date.getTime() / 1000);
 735
 736                 if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
 737                         console.log("hotkey_prefix seems to be stuck, aborting");
 738                         hotkey_prefix_pressed = false;
 739                         hotkey_prefix = false;
 740                         Element.hide('cmdline');
 741                 }
 742
 743                 setTimeout("hotkey_prefix_timeout()", 1000);
 744
 745         } catch  (e) {
 746                 exception_error("hotkey_prefix_timeout", e);
 747         }
 748 }
 749
 750 function hideAuxDlg() {
 751         try {
 752                 Element.hide('auxDlg');
 753         } catch (e) {
 754                 exception_error("hideAuxDlg", e);
 755         }
 756 }
 757
 758
 759 function uploadIconHandler(rc) {
 760         try {
 761                 switch (rc) {
 762                         case 0:
 763                                 notify_info("Upload complete.");
 764                                 if (inPreferences()) {
 765                                         updateFeedList();
 766                                 } else {
 767                                         setTimeout('updateFeedList(false, false)', 50);
 768                                 }
 769                                 break;
 770                         case 1:
 771                                 notify_error("Upload failed: icon is too big.");
 772                                 break;
 773                         case 2:
 774                                 notify_error("Upload failed.");
 775                                 break;
 776                 }
 777
 778         } catch (e) {
 779                 exception_error("uploadIconHandler", e);
 780         }
 781 }
 782
 783 function removeFeedIcon(id) {
 784
 785         try {
 786
 787                 if (confirm(__("Remove stored feed icon?"))) {
 788                         var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
 789
 790                         console.log(query);
 791
 792                         notify_progress("Removing feed icon...", true);
 793
 794                         new Ajax.Request("backend.php", {
 795                                 parameters: query,
 796                                 onComplete: function(transport) {
 797                                         notify_info("Feed icon removed.");
 798                                         if (inPreferences()) {
 799                                                 updateFeedList();
 800                                         } else {
 801                                                 setTimeout('updateFeedList(false, false)', 50);
 802                                         }
 803                                 } });
 804                 }
 805
 806                 return false;
 807         } catch (e) {
 808                 exception_error("uploadFeedIcon", e);
 809         }
 810 }
 811
 812 function uploadFeedIcon() {
 813
 814         try {
 815
 816                 var file = $("icon_file");
 817
 818                 if (file.value.length == 0) {
 819                         alert(__("Please select an image file to upload."));
 820                 } else {
 821                         if (confirm(__("Upload new icon for this feed?"))) {
 822                                 notify_progress("Uploading, please wait...", true);
 823                                 return true;
 824                         }
 825                 }
 826
 827                 return false;
 828
 829         } catch (e) {
 830                 exception_error("uploadFeedIcon", e);
 831         }
 832 }
 833
 834 function addLabel(select, callback) {
 835
 836         try {
 837
 838                 var caption = prompt(__("Please enter label caption:"), "");
 839
 840                 if (caption != undefined) {
 841
 842                         if (caption == "") {
 843                                 alert(__("Can't create label: missing caption."));
 844                                 return false;
 845                         }
 846
 847                         var query = "?op=pref-labels&subop=add&caption=" +
 848                                 param_escape(caption);
 849
 850                         if (select)
 851                                 query += "&output=select";
 852
 853                         notify_progress("Loading, please wait...", true);
 854
 855                         if (inPreferences() && !select) active_tab = "labelConfig";
 856
 857                         new Ajax.Request("backend.php", {
 858                                 parameters: query,
 859                                 onComplete: function(transport) {
 860                                         if (callback) {
 861                                                 callback(transport);
 862                                         } else if (inPreferences()) {
 863                                                 updateLabelList();
 864                                         } else {
 865                                                 updateFeedList();
 866                                         }
 867                         } });
 868
 869                 }
 870
 871         } catch (e) {
 872                 exception_error("addLabel", e);
 873         }
 874 }
 875
 876 function quickAddFeed() {
 877         try {
 878                 var query = "backend.php?op=dlg&id=quickAddFeed";
 879
 880                 if (dijit.byId("feedAddDlg"))
 881                         dijit.byId("feedAddDlg").destroyRecursive();
 882
 883                 var dialog = new dijit.Dialog({
 884                         id: "feedAddDlg",
 885                         title: __("Subscribe to Feed"),
 886                         style: "width: 600px",
 887                         execute: function() {
 888                                 if (this.validate()) {
 889                                         console.log(dojo.objectToQuery(this.attr('value')));
 890
 891                                         var feed_url = this.attr('value').feed;
 892
 893                                         notify_progress(__("Subscribing to feed..."), true);
 894
 895                                         new Ajax.Request("backend.php", {
 896                                                 parameters: dojo.objectToQuery(this.attr('value')),
 897                                                 onComplete: function(transport) {
 898                                                         try {
 899
 900                                                                 var reply = JSON.parse(transport.responseText);
 901
 902                                                                 var rc = parseInt(reply['result']);
 903
 904                                                                 notify('');
 905
 906                                                                 console.log("GOT RC: " + rc);
 907
 908                                                                 switch (rc) {
 909                                                                 case 1:
 910                                                                         dialog.hide();
 911                                                                         notify_info(__("Subscribed to %s").replace("%s", feed_url));
 912
 913                                                                         updateFeedList();
 914                                                                         break;
 915                                                                 case 2:
 916                                                                         alert(__("Specified URL seems to be invalid."));
 917                                                                         break;
 918                                                                 case 3:
 919                                                                         alert(__("Specified URL doesn't seem to contain any feeds."));
 920                                                                         break;
 921                                                                 case 4:
 922                                                                         notify_progress("Searching for feed urls...", true);
 923
 924                                                                         new Ajax.Request("backend.php", {
 925                                                                                 parameters: 'op=rpc&subop=extractfeedurls&url=' + param_escape(feed_url),
 926                                                                                 onComplete: function(transport, dialog, feed_url) {
 927
 928                                                                                         notify('');
 929
 930                                                                                         var reply = JSON.parse(transport.responseText);
 931
 932                                                                                         var feeds = reply['urls'];
 933
 934                                                                                         console.log(transport.responseText);
 935
 936                                                                                         var select = dijit.byId("feedDlg_feedContainerSelect");
 937
 938                                                                                         while (select.getOptions().length > 0)
 939                                                                                                 select.removeOption(0);
 940
 941                                                                                         var count = 0;
 942                                                                                         for (var feedUrl in feeds) {
 943                                                                                                 select.addOption({value: feedUrl, label: feeds[feedUrl]});
 944                                                                                                 count++;
 945                                                                                         }
 946
 947 //                                                                                      if (count > 5) count = 5;
 948 //                                                                                      select.size = count;
 949
 950                                                                                         Effect.Appear('feedDlg_feedsContainer', {duration : 0.5});
 951                                                                                 }
 952                                                                         });
 953                                                                         break;
 954                                                                 case 5:
 955                                                                         alert(__("Couldn't download the specified URL."));
 956                                                                         break;
 957                                                                 case 0:
 958                                                                         alert(__("You are already subscribed to this feed."));
 959                                                                         break;
 960                                                                 }
 961
 962                                                         } catch (e) {
 963                                                                 exception_error("subscribeToFeed", e);
 964                                                         }
 965
 966                                                 } });
 967
 968                                         }
 969                         },
 970                         href: query});
 971
 972                 dialog.show();
 973         } catch (e) {
 974                 exception_error("quickAddFeed", e);
 975         }
 976 }
 977
 978 function quickAddFilter() {
 979         try {
 980                 var query = "backend.php?op=dlg&id=quickAddFilter";
 981
 982                 if (dijit.byId("filterEditDlg"))
 983                         dijit.byId("filterEditDlg").destroyRecursive();
 984
 985                 dialog = new dijit.Dialog({
 986                         id: "filterEditDlg",
 987                         title: __("Create Filter"),
 988                         style: "width: 600px",
 989                         execute: function() {
 990                                 if (this.validate()) {
 991
 992                                         var query = "?op=rpc&subop=verifyRegexp&reg_exp=" +
 993                                                 param_escape(dialog.attr('value').reg_exp);
 994
 995                                         notify_progress("Verifying regular expression...");
 996
 997                                         new Ajax.Request("backend.php", {
 998                                                 parameters: query,
 999                                                 onComplete: function(transport) {
1000                                                         var reply = JSON.parse(transport.responseText);
1001
1002                                                         if (reply) {
1003                                                                 notify('');
1004
1005                                                                 if (!reply['status']) {
1006                                                                         alert("Match regular expression seems to be invalid.");
1007                                                                         return;
1008                                                                 } else {
1009                                                                         notify_progress("Saving data...", true);
1010
1011                                                                         console.log(dojo.objectToQuery(dialog.attr('value')));
1012
1013                                                                         new Ajax.Request("backend.php", {
1014                                                                                 parameters: dojo.objectToQuery(dialog.attr('value')),
1015                                                                                 onComplete: function(transport) {
1016                                                                                         dialog.hide();
1017                                                                                         notify_info(transport.responseText);
1018                                                                                         if (inPreferences()) {
1019                                                                                                 updateFilterList();
1020                                                                                         }
1021                                                                         }})
1022                                                                 }
1023                                                         }
1024                                         }});
1025                                 }
1026                         },
1027                         href: query});
1028
1029                 dialog.show();
1030         } catch (e) {
1031                 exception_error("quickAddFilter", e);
1032         }
1033 }
1034
1035 function unsubscribeFeed(feed_id, title) {
1036
1037         var msg = __("Unsubscribe from %s?").replace("%s", title);
1038
1039         if (title == undefined || confirm(msg)) {
1040                 notify_progress("Removing feed...");
1041
1042                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
1043
1044                 new Ajax.Request("backend.php", {
1045                         parameters: query,
1046                         onComplete: function(transport) {
1047
1048                                         if (dijit.byId("feedEditDlg")) dijit.byId("feedEditDlg").hide();
1049
1050                                         if (inPreferences()) {
1051                                                 updateFeedList();
1052                                         } else {
1053                                                 if (feed_id == getActiveFeedId())
1054                                                         setTimeout("viewfeed(-5)", 100);
1055                                         }
1056
1057                                 } });
1058         }
1059
1060         return false;
1061 }
1062
1063
1064 function backend_sanity_check_callback(transport) {
1065
1066         try {
1067
1068                 if (sanity_check_done) {
1069                         fatalError(11, "Sanity check request received twice. This can indicate "+
1070                       "presence of Firebug or some other disrupting extension. "+
1071                                 "Please disable it and try again.");
1072                         return;
1073                 }
1074
1075                 if (!transport.responseXML) {
1076                         if (!store) {
1077                                 fatalError(3, "Sanity check: Received reply is not XML",
1078                                         transport.responseText);
1079                                 return;
1080                         }
1081                 }
1082
1083                 var reply = transport.responseXML.getElementsByTagName("error")[0];
1084
1085                 if (!reply) {
1086                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
1087                         return;
1088                 }
1089
1090                 var error_code = reply.getAttribute("error-code");
1091
1092                 if (error_code && error_code != 0) {
1093                         return fatalError(error_code, reply.getAttribute("error-msg"));
1094                 }
1095
1096                 console.log("sanity check ok");
1097
1098                 var params = transport.responseXML.getElementsByTagName("init-params")[0];
1099
1100                 if (params) {
1101                         console.log('reading init-params...');
1102
1103                         params = JSON.parse(params.firstChild.nodeValue);
1104
1105                         if (params) {
1106                                 for (k in params) {
1107                                         var v = params[k];
1108                                         console.log("IP: " + k + " => " + v);
1109                                 }
1110                         }
1111
1112                         init_params = params;
1113                 }
1114
1115                 sanity_check_done = true;
1116
1117                 init_second_stage();
1118
1119         } catch (e) {
1120                 exception_error("backend_sanity_check_callback", e, transport);
1121         }
1122 }
1123
1124 function has_local_storage() {
1125         try {
1126                 return 'sessionStorage' in window && window['sessionStorage'] != null;
1127         } catch (e) {
1128                 return false;
1129         }
1130 }
1131
1132 function catSelectOnChange(elem) {
1133         try {
1134 /*              var value = elem[elem.selectedIndex].value;
1135                 var def = elem.getAttribute('default');
1136
1137                 if (value == "ADD_CAT") {
1138
1139                         if (def)
1140                                 dropboxSelect(elem, def);
1141                         else
1142                                 elem.selectedIndex = 0;
1143
1144                         quickAddCat(elem);
1145                 } */
1146
1147         } catch (e) {
1148                 exception_error("catSelectOnChange", e);
1149         }
1150 }
1151
1152 function quickAddCat(elem) {
1153         try {
1154                 var cat = prompt(__("Please enter category title:"));
1155
1156                 if (cat) {
1157
1158                         var query = "?op=rpc&subop=quickAddCat&cat=" + param_escape(cat);
1159
1160                         notify_progress("Loading, please wait...", true);
1161
1162                         new Ajax.Request("backend.php", {
1163                                 parameters: query,
1164                                 onComplete: function (transport) {
1165                                         var response = transport.responseXML;
1166                                         var select = response.getElementsByTagName("select")[0];
1167                                         var options = select.getElementsByTagName("option");
1168
1169                                         dropbox_replace_options(elem, options);
1170
1171                                         notify('');
1172
1173                         } });
1174
1175                 }
1176
1177         } catch (e) {
1178                 exception_error("quickAddCat", e);
1179         }
1180 }
1181
1182 function genUrlChangeKey(feed, is_cat) {
1183
1184         try {
1185                 var ok = confirm(__("Generate new syndication address for this feed?"));
1186
1187                 if (ok) {
1188
1189                         notify_progress("Trying to change address...", true);
1190
1191                         var query = "?op=rpc&subop=regenFeedKey&id=" + param_escape(feed) +
1192                                 "&is_cat=" + param_escape(is_cat);
1193
1194                         new Ajax.Request("backend.php", {
1195                                 parameters: query,
1196                                 onComplete: function(transport) {
1197                                                 var reply = JSON.parse(transport.responseText);
1198                                                 var new_link = reply.link;
1199
1200                                                 var e = $('gen_feed_url');
1201
1202                                                 if (new_link) {
1203
1204                                                         e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
1205                                                                 "&amp;key=" + new_link);
1206
1207                                                         e.href = e.href.replace(/\&amp;key=.*$/,
1208                                                                 "&amp;key=" + new_link);
1209
1210                                                         new Effect.Highlight(e);
1211
1212                                                         notify('');
1213
1214                                                 } else {
1215                                                         notify_error("Could not change feed URL.");
1216                                                 }
1217                                 } });
1218                 }
1219         } catch (e) {
1220                 exception_error("genUrlChangeKey", e);
1221         }
1222         return false;
1223 }
1224
1225 function labelSelectOnChange(elem) {
1226         try {
1227 /*              var value = elem[elem.selectedIndex].value;
1228                 var def = elem.getAttribute('default');
1229
1230                 if (value == "ADD_LABEL") {
1231
1232                         if (def)
1233                                 dropboxSelect(elem, def);
1234                         else
1235                                 elem.selectedIndex = 0;
1236
1237                         addLabel(elem, function(transport) {
1238
1239                                         try {
1240
1241                                                 var response = transport.responseXML;
1242                                                 var select = response.getElementsByTagName("select")[0];
1243                                                 var options = select.getElementsByTagName("option");
1244
1245                                                 dropbox_replace_options(elem, options);
1246
1247                                                 notify('');
1248                                         } catch (e) {
1249                                                 exception_error("addLabel", e);
1250                                         }
1251                         });
1252                 } */
1253
1254         } catch (e) {
1255                 exception_error("labelSelectOnChange", e);
1256         }
1257 }
1258
1259 function dropbox_replace_options(elem, options) {
1260
1261         try {
1262                 while (elem.hasChildNodes())
1263                         elem.removeChild(elem.firstChild);
1264
1265                 var sel_idx = -1;
1266
1267                 for (var i = 0; i < options.length; i++) {
1268                         var text = options[i].firstChild.nodeValue;
1269                         var value = options[i].getAttribute("value");
1270
1271                         if (value == undefined) value = text;
1272
1273                         var issel = options[i].getAttribute("selected") == "1";
1274
1275                         var option = new Option(text, value, issel);
1276
1277                         if (options[i].getAttribute("disabled"))
1278                                 option.setAttribute("disabled", true);
1279
1280                         elem.insert(option);
1281
1282                         if (issel) sel_idx = i;
1283                 }
1284
1285                 // Chrome doesn't seem to just select stuff when you pass new Option(x, y, true)
1286                 if (sel_idx >= 0) elem.selectedIndex = sel_idx;
1287
1288         } catch (e) {
1289                 exception_error("dropbox_replace_options", e);
1290         }
1291 }
1292
1293 // mode = all, none, invert
1294 function selectTableRows(id, mode) {
1295         try {
1296                 var rows = $(id).rows;
1297
1298                 for (var i = 0; i < rows.length; i++) {
1299                         var row = rows[i];
1300                         var cb = false;
1301
1302                         if (row.id && row.className) {
1303                                 var bare_id = row.id.replace(/^[A-Z]*?-/, "");
1304                                 var inputs = rows[i].getElementsByTagName("input");
1305
1306                                 for (var j = 0; j < inputs.length; j++) {
1307                                         var input = inputs[j];
1308
1309                                         if (input.getAttribute("type") == "checkbox" &&
1310                                                         input.id.match(bare_id)) {
1311
1312                                                 cb = input;
1313                                                 break;
1314                                         }
1315                                 }
1316
1317                                 if (cb) {
1318                                         var issel = row.hasClassName("Selected");
1319
1320                                         if (mode == "all" && !issel) {
1321                                                 row.addClassName("Selected");
1322                                                 cb.checked = true;
1323                                         } else if (mode == "none" && issel) {
1324                                                 row.removeClassName("Selected");
1325                                                 cb.checked = false;
1326                                         } else if (mode == "invert") {
1327
1328                                                 if (issel) {
1329                                                         row.removeClassName("Selected");
1330                                                         cb.checked = false;
1331                                                 } else {
1332                                                         row.addClassName("Selected");
1333                                                         cb.checked = true;
1334                                                 }
1335                                         }
1336                                 }
1337                         }
1338                 }
1339
1340         } catch (e) {
1341                 exception_error("selectTableRows", e);
1342
1343         }
1344 }
1345
1346 function getSelectedTableRowIds(id) {
1347         var rows = [];
1348
1349         try {
1350                 var elem_rows = $(id).rows;
1351
1352                 for (i = 0; i < elem_rows.length; i++) {
1353                         if (elem_rows[i].hasClassName("Selected")) {
1354                                 var bare_id = elem_rows[i].id.replace(/^[A-Z]*?-/, "");
1355                                 rows.push(bare_id);
1356                         }
1357                 }
1358
1359         } catch (e) {
1360                 exception_error("getSelectedTableRowIds", e);
1361         }
1362
1363         return rows;
1364 }
1365
1366 function editFeed(feed, event) {
1367         try {
1368                 if (feed <= 0)
1369                         return alert(__("You can't edit this kind of feed."));
1370
1371                 var query = "backend.php?op=pref-feeds&subop=editfeed&id=" +
1372                         param_escape(feed);
1373
1374                 console.log(query);
1375
1376                 if (dijit.byId("feedEditDlg"))
1377                         dijit.byId("feedEditDlg").destroyRecursive();
1378
1379                 dialog = new dijit.Dialog({
1380                         id: "feedEditDlg",
1381                         title: __("Edit Feed"),
1382                         style: "width: 600px",
1383                         execute: function() {
1384                                 if (this.validate()) {
1385 //                                      console.log(dojo.objectToQuery(this.attr('value')));
1386
1387                                         notify_progress("Saving data...", true);
1388
1389                                         new Ajax.Request("backend.php", {
1390                                                 parameters: dojo.objectToQuery(dialog.attr('value')),
1391                                                 onComplete: function(transport) {
1392                                                         dialog.hide();
1393                                                         notify('');
1394                                                         updateFeedList();
1395                                         }})
1396                                 }
1397                         },
1398                         href: query});
1399
1400                 dialog.show();
1401
1402         } catch (e) {
1403                 exception_error("editFeed", e);
1404         }
1405 }
1406
1407 function feedBrowser() {
1408         try {
1409                 var query = "backend.php?op=dlg&id=feedBrowser";
1410
1411                 if (dijit.byId("feedAddDlg"))
1412                         dijit.byId("feedAddDlg").hide();
1413
1414                 if (dijit.byId("feedBrowserDlg"))
1415                         dijit.byId("feedBrowserDlg").destroyRecursive();
1416
1417                 var dialog = new dijit.Dialog({
1418                         id: "feedBrowserDlg",
1419                         title: __("More Feeds"),
1420                         style: "width: 600px",
1421                         getSelectedFeeds: function() {
1422                                 var list = $$("#browseFeedList li[id*=FBROW]");
1423                                 var selected = new Array();
1424
1425                                 list.each(function(child) {
1426                                         var id = child.id.replace("FBROW-", "");
1427
1428                                         if (child.hasClassName('Selected')) {
1429                                                 selected.push(id);
1430                                         }
1431                                 });
1432
1433                                 return selected;
1434                         },
1435                         subscribe: function() {
1436                                 var selected = this.getSelectedFeeds();
1437                                 var mode = this.attr('value').mode;
1438
1439                                 if (selected.length > 0) {
1440                                         dijit.byId("feedBrowserDlg").hide();
1441
1442                                         notify_progress("Loading, please wait...", true);
1443
1444                                         var query = "?op=rpc&subop=massSubscribe&ids="+
1445                                                 param_escape(selected.toString()) + "&mode=" + param_escape(mode);
1446
1447                                         console.log(query);
1448
1449                                         new Ajax.Request("backend.php", {
1450                                                 parameters: query,
1451                                                 onComplete: function(transport) {
1452                                                         if (inPreferences()) {
1453                                                                 updateFeedList();
1454                                                         }
1455                                                 } });
1456
1457                                 } else {
1458                                         alert(__("No feeds are selected."));
1459                                 }
1460
1461                         },
1462                         update: function() {
1463                                 var query = dojo.objectToQuery(dialog.attr('value'));
1464
1465                                 Element.show('feed_browser_spinner');
1466
1467                                 new Ajax.Request("backend.php", {
1468                                         parameters: query,
1469                                         onComplete: function(transport) {
1470                                                 notify('');
1471
1472                                                 Element.hide('feed_browser_spinner');
1473
1474                                                 var c = $("browseFeedList");
1475
1476                                                 var reply = JSON.parse(transport.responseText);
1477
1478                                                 var r = reply['content'];
1479                                                 var mode = reply['mode'];
1480
1481                                                 if (c && r) {
1482                                                         c.innerHTML = r;
1483                                                 }
1484
1485                                                 dojo.parser.parse("browseFeedList");
1486
1487                                                 if (mode == 2) {
1488                                                         Element.show(dijit.byId('feed_archive_remove').domNode);
1489                                                 } else {
1490                                                         Element.hide(dijit.byId('feed_archive_remove').domNode);
1491                                                 }
1492
1493                                         } });
1494                         },
1495                         removeFromArchive: function() {
1496                                 var selected = this.getSelectedFeeds();
1497
1498                                 if (selected.length > 0) {
1499
1500                                         var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1501
1502                                         if (confirm(pr)) {
1503                                                 Element.show('feed_browser_spinner');
1504
1505                                                 var query = "?op=rpc&subop=remarchived&ids=" +
1506                                                         param_escape(selected.toString());;
1507
1508                                                 new Ajax.Request("backend.php", {
1509                                                         parameters: query,
1510                                                         onComplete: function(transport) {
1511                                                                 dialog.update();
1512                                                         } });
1513                                         }
1514                                 }
1515                         },
1516                         execute: function() {
1517                                 if (this.validate()) {
1518                                         this.subscribe();
1519                                 }
1520                         },
1521                         href: query});
1522
1523                 dialog.show();
1524
1525         } catch (e) {
1526                 exception_error("editFeed", e);
1527         }
1528 }
1529
1530