view/js/main.js

   1 // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPLv3-or-later
   2
   3 // https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill
   4 if (!Element.prototype.matches) {
   5         Element.prototype.matches =
   6                 Element.prototype.matchesSelector ||
   7                 Element.prototype.mozMatchesSelector ||
   8                 Element.prototype.msMatchesSelector ||
   9                 Element.prototype.oMatchesSelector ||
  10                 Element.prototype.webkitMatchesSelector ||
  11                 function(s) {
  12                         var matches = (this.document || this.ownerDocument).querySelectorAll(s),
  13                                 i = matches.length;
  14                         while (--i >= 0 && matches.item(i) !== this) {}
  15                         return i > -1;
  16                 };
  17 }
  18
  19 function resizeIframe(obj) {
  20         _resizeIframe(obj, 0);
  21 }
  22
  23 function _resizeIframe(obj, desth) {
  24         var h = obj.style.height;
  25         var ch = obj.contentWindow.document.body.scrollHeight;
  26
  27         if (h == (ch + 'px')) {
  28                 return;
  29         }
  30         if (desth == ch && ch > 0) {
  31                 obj.style.height  = ch + 'px';
  32         }
  33         setTimeout(_resizeIframe, 100, obj, ch);
  34 }
  35
  36 function initWidget(inflated, deflated) {
  37         var elInf = document.getElementById(inflated);
  38         var elDef = document.getElementById(deflated);
  39
  40         if (!elInf || !elDef) {
  41                 return;
  42         }
  43         if (localStorage.getItem(window.location.pathname.split("/")[1] + ":" + inflated) != "none") {
  44                 elInf.style.display = "block";
  45                 elDef.style.display = "none";
  46         } else {
  47                 elInf.style.display = "none";
  48                 elDef.style.display = "block";
  49         }
  50 }
  51
  52 function openCloseWidget(inflated, deflated) {
  53         var elInf = document.getElementById(inflated);
  54         var elDef = document.getElementById(deflated);
  55
  56         if (!elInf || !elDef) {
  57                 return;
  58         }
  59
  60         if (window.getComputedStyle(elInf).display === "none") {
  61                 elInf.style.display = "block";
  62                 elDef.style.display = "none";
  63                 localStorage.setItem(window.location.pathname.split("/")[1] + ":" + inflated, "block");
  64         } else {
  65                 elInf.style.display = "none";
  66                 elDef.style.display = "block";
  67                 localStorage.setItem(window.location.pathname.split("/")[1] + ":" + inflated, "none");
  68         }
  69 }
  70
  71 function openClose(theID) {
  72         var el = document.getElementById(theID);
  73         if (el) {
  74                 if (window.getComputedStyle(el).display === "none") {
  75                         openMenu(theID);
  76                 } else {
  77                         closeMenu(theID);
  78                 }
  79         }
  80 }
  81
  82 function openMenu(theID) {
  83         var el = document.getElementById(theID);
  84         if (el) {
  85                 if (!el.dataset.display) {
  86                         el.dataset.display = 'block';
  87                 }
  88                 el.style.display = el.dataset.display;
  89         }
  90 }
  91
  92 function closeMenu(theID) {
  93         var el = document.getElementById(theID);
  94         if (el) {
  95                 el.dataset.display = window.getComputedStyle(el).display;
  96                 el.style.display = "none";
  97         }
  98 }
  99
 100 function decodeHtml(html) {
 101         var txt = document.createElement("textarea");
 102
 103         txt.innerHTML = html;
 104         return txt.value;
 105 }
 106
 107 /**
 108  * Retrieves a single named query string parameter
 109  *
 110  * @param {string} name
 111  * @returns {string}
 112  * @see https://davidwalsh.name/query-string-javascript
 113  */
 114 function getUrlParameter(name) {
 115         name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
 116         var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
 117         var results = regex.exec(location.search);
 118         return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
 119 };
 120
 121 var src = null;
 122 var prev = null;
 123 var livetime = null;
 124 var force_update = false;
 125 var update_item = 0;
 126 var stopped = false;
 127 var totStopped = false;
 128 var timer = null;
 129 var pr = 0;
 130 var liking = 0;
 131 var in_progress = false;
 132 var langSelect = false;
 133 var commentBusy = false;
 134 var last_popup_menu = null;
 135 var last_popup_button = null;
 136 var lockLoadContent = false;
 137 var originalTitle = document.title;
 138
 139 const urlRegex = /^(?:https?:\/\/|\s)[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})(?:\/+[a-z0-9_.:;-]*)*(?:\?[&%|+a-z0-9_=,.:;-]*)?(?:[&%|+&a-z0-9_=,:;.-]*)(?:[!#\/&%|+a-z0-9_=,:;.-]*)}*$/i;
 140
 141 $(function() {
 142         $.ajaxSetup({cache: false});
 143
 144         /* setup comment textarea buttons */
 145         /* comment textarea buttons needs some "data-*" attributes to work:
 146          *              data-role="insert-formatting" : to mark the element as a formatting button
 147          *              data-bbcode="<string>" : name of the bbcode element to insert. insertFormatting() will insert it as "[name][/name]"
 148          *              data-id="<string>" : id of the comment, used to find other comment-related element, like the textarea
 149          * */
 150         $('body').on('click','[data-role="insert-formatting"]', function(e) {
 151                 e.preventDefault();
 152                 var o = $(this);
 153                 var bbcode = o.data('bbcode');
 154                 var id = o.data('id');
 155                 if (bbcode == "img") {
 156                         Dialog.doImageBrowser("comment", id);
 157                         return;
 158                 }
 159
 160                 if (bbcode == "imgprv") {
 161                         bbcode = "img";
 162                 }
 163
 164                 insertFormatting(bbcode, id);
 165         });
 166
 167         /* event from comment textarea button popups */
 168         /* insert returned bbcode at cursor position or replace selected text */
 169         $("body").on("fbrowser.image.comment", function(e, filename, bbcode, id) {
 170                 $.colorbox.close();
 171                 var textarea = document.getElementById("comment-edit-text-" +id);
 172                 var start = textarea.selectionStart;
 173                 var end = textarea.selectionEnd;
 174                 textarea.value = textarea.value.substring(0, start) + bbcode + textarea.value.substring(end, textarea.value.length);
 175                 $(textarea).trigger('change');
 176         });
 177
 178         /* popup menus */
 179         function close_last_popup_menu() {
 180                 if (last_popup_menu) {
 181                         last_popup_menu.hide();
 182                         last_popup_menu.off('click', function(e) {e.stopPropagation()});
 183                         last_popup_button.removeClass("selected");
 184                         last_popup_menu = null;
 185                         last_popup_button = null;
 186                 }
 187         }
 188         $('a[rel^="#"]').click(function(e) {
 189                 e.preventDefault();
 190                 var parent = $(this).parent();
 191                 var isSelected = (last_popup_button && parent.attr('id') == last_popup_button.attr('id'));
 192                 close_last_popup_menu();
 193                 if (isSelected) {
 194                         return false;
 195                 }
 196                 menu = $($(this).attr('rel'));
 197                 e.preventDefault();
 198                 e.stopPropagation();
 199                 if (menu.attr('popup') == "false") {
 200                         return false;
 201                 }
 202                 parent.toggleClass("selected");
 203                 menu.toggle();
 204                 if (menu.css("display") == "none") {
 205                         last_popup_menu = null;
 206                         last_popup_button = null;
 207                 } else {
 208                         last_popup_menu = menu;
 209                         last_popup_menu.on('click', function(e) {e.stopPropagation()});
 210                         last_popup_button = parent;
 211                         $('#nav-notifications-menu').perfectScrollbar('update');
 212                 }
 213                 return false;
 214         });
 215         $('html').click(function() {
 216                 close_last_popup_menu();
 217         });
 218
 219         // fancyboxes
 220         $("a.popupbox").colorbox({
 221                 'inline' : true,
 222                 'transition' : 'elastic',
 223                 'maxWidth' : '100%'
 224         });
 225         $("a.ajax-popupbox").colorbox({
 226                 'transition' : 'elastic',
 227                 'maxWidth' : '100%'
 228         });
 229
 230         /* notifications template */
 231         var notifications_tpl= unescape($("#nav-notifications-template[rel=template]").html());
 232         var notifications_all = unescape($('<div>').append($("#nav-notifications-see-all").clone()).html()); //outerHtml hack
 233         var notifications_mark = unescape($('<div>').append($("#nav-notifications-mark-all").clone()).html()); //outerHtml hack
 234         var notifications_empty = unescape($("#nav-notifications-menu").html());
 235
 236         /* enable perfect-scrollbars for different elements */
 237         $('#nav-notifications-menu, aside').perfectScrollbar();
 238
 239         /* nav update event  */
 240         $('nav').bind('nav-update', function(e, data) {
 241                 var invalid = data.invalid || 0;
 242                 if (invalid == 1) {
 243                         window.location.href=window.location.href
 244                 }
 245
 246                 let tabNotifications = data.mail + data.notification;
 247                 if (tabNotifications > 0) {
 248                         document.title = '(' + tabNotifications + ') ' + originalTitle;
 249                 } else {
 250                         document.title = originalTitle;
 251                 }
 252
 253                 ['net', 'home', 'intro', 'mail', 'events', 'birthdays', 'notification'].forEach(function(type) {
 254                         var number = data[type];
 255                         if (number == 0) {
 256                                 number = '';
 257                                 $('#' + type + '-update').removeClass('show');
 258                         } else {
 259                                 $('#' + type + '-update').addClass('show');
 260                         }
 261                         $('#' + type + '-update').text(number);
 262                 });
 263
 264                 var intro = data['intro'];
 265                 if (intro == 0) {
 266                         intro = ''; $('#intro-update-li').removeClass('show')
 267                 } else {
 268                         $('#intro-update-li').addClass('show')
 269                 }
 270
 271                 $('#intro-update-li').html(intro);
 272
 273                 var mail = data['mail'];
 274                 if (mail == 0) {
 275                         mail = ''; $('#mail-update-li').removeClass('show')
 276                 } else {
 277                         $('#mail-update-li').addClass('show')
 278                 }
 279
 280                 $('#mail-update-li').html(mail);
 281
 282                 $(".sidebar-group-li .notify").removeClass("show");
 283                 $(data.groups).each(function(key, group) {
 284                         var gid = group.id;
 285                         var gcount = group.count;
 286                         $(".group-"+gid+" .notify").addClass("show").text(gcount);
 287                 });
 288
 289                 $(".forum-widget-entry .notify").removeClass("show");
 290                 $(data.forums).each(function(key, forum) {
 291                         var fid = forum.id;
 292                         var fcount = forum.count;
 293                         $(".forum-"+fid+" .notify").addClass("show").text(fcount);
 294                 });
 295
 296                 if (data.notifications.length == 0) {
 297                         $("#nav-notifications-menu").html(notifications_empty);
 298                 } else {
 299                         var nnm = $("#nav-notifications-menu");
 300                         nnm.html(notifications_all + notifications_mark);
 301
 302                         var lastItemStorageKey = "notification-lastitem:" + localUser;
 303                         var notification_lastitem = parseInt(localStorage.getItem(lastItemStorageKey));
 304                         var notification_id = 0;
 305
 306                         // Insert notifs into the notifications-menu
 307                         $(data.notifications).each(function(key, notification) {
 308                                 var text = notification.message.format('<span class="contactname">' + notification.name + '</span>');
 309                                 var contact = ('<a href="' + notification.url + '"><span class="contactname">' + notification.name + '</span></a>');
 310                                 var seenclass = (notification.seen == 1) ? "notification-seen" : "notification-unseen";
 311                                 var html = notifications_tpl.format(
 312                                         notification.href,                     // {0}  // link to the source
 313                                         notification.photo,                    // {1}  // photo of the contact
 314                                         text,                           // {2}  // preformatted text (autor + text)
 315                                         notification.date,                     // {3}  // date of notification (time ago)
 316                                         seenclass,                      // {4}  // visited status of the notification
 317                                         new Date(notification.timestamp*1000), // {5}  // date of notification
 318                                         notification.url,                      // {6}  // profile url of the contact
 319                                         notification.message.format(contact),  // {7}  // preformatted html (text including author profile url)
 320                                         ''                              // {8}  // Deprecated
 321                                 );
 322                                 nnm.append(html);
 323                         });
 324
 325                         // Desktop Notifications
 326                         $(data.notifications.reverse()).each(function(key, e) {
 327                                 notification_id = parseInt(e.timestamp);
 328                                 if (notification_lastitem !== null && notification_id > notification_lastitem && Number(e.seen) === 0) {
 329                                         if (getNotificationPermission() === "granted") {
 330                                                 var notification = new Notification(document.title, {
 331                                                                                   body: decodeHtml(e.message.replace('&rarr; ', '').format(e.name)),
 332                                                                                   icon: e.photo,
 333                                                                                 });
 334                                                 notification['url'] = e.href;
 335                                                 notification.addEventListener("click", function(ev) {
 336                                                         window.location = ev.target.url;
 337                                                 });
 338                                         }
 339                                 }
 340
 341                         });
 342                         notification_lastitem = notification_id;
 343                         localStorage.setItem(lastItemStorageKey, notification_lastitem)
 344
 345                         $("img[data-src]", nnm).each(function(i, el) {
 346                                 // Add src attribute for images with a data-src attribute
 347                                 // However, don't bother if the data-src attribute is empty, because
 348                                 // an empty "src" tag for an image will cause some browsers
 349                                 // to prefetch the root page of the Friendica hub, which will
 350                                 // unnecessarily load an entire profile/ or network/ page
 351                                 if ($(el).data("src") != '') {
 352                                         $(el).attr('src', $(el).data("src"));
 353                                 }
 354                         });
 355                 }
 356
 357                 var notif = data['notification'];
 358                 if (notif > 0) {
 359                         $("#nav-notifications-linkmenu").addClass("on");
 360                 } else {
 361                         $("#nav-notifications-linkmenu").removeClass("on");
 362                 }
 363
 364                 $(data.sysmsgs.notice).each(function(key, message) {
 365                         $.jGrowl(message, {sticky: true, theme: 'notice'});
 366                 });
 367                 $(data.sysmsgs.info).each(function(key, message) {
 368                         $.jGrowl(message, {sticky: false, theme: 'info', life: 5000});
 369                 });
 370
 371                 // Update the js scrollbars
 372                 $('#nav-notifications-menu').perfectScrollbar('update');
 373         });
 374
 375         // Asynchronous calls are deferred until the very end of the page load to ease on slower connections
 376         window.addEventListener("load", function(){
 377                 NavUpdate();
 378                 if (typeof acl !== 'undefined') {
 379                         acl.get(0, 100);
 380                 }
 381         });
 382
 383         // Allow folks to stop the ajax page updates with the pause/break key
 384         $(document).keydown(function(event) {
 385                 if (event.keyCode == '8') {
 386                         var target = event.target || event.srcElement;
 387                         if (!/input|textarea/i.test(target.nodeName)) {
 388                                 return false;
 389                         }
 390                 }
 391
 392                 if (event.keyCode == '19' || (event.ctrlKey && event.which == '32')) {
 393                         event.preventDefault();
 394                         if (stopped == false) {
 395                                 stopped = true;
 396                                 if (event.ctrlKey) {
 397                                         totStopped = true;
 398                                 }
 399                                 $('#pause').html('<img src="images/pause.gif" alt="pause" style="border: 1px solid black;" />');
 400                         } else {
 401                                 unpause();
 402                         }
 403                 } else if (!totStopped) {
 404                         unpause();
 405                 }
 406         });
 407
 408         // Scroll to the next/previous thread when pressing J and K
 409         $(document).keydown(function (event) {
 410                 var threads = $('.thread_level_1');
 411                 if ((event.keyCode === 74 || event.keyCode === 75) && !$(event.target).is('textarea, input')) {
 412                         var scrollTop = $(window).scrollTop();
 413                         if (event.keyCode === 75) {
 414                                 threads = $(threads.get().reverse());
 415                         }
 416                         threads.each(function(key, item) {
 417                                 var comparison;
 418                                 var top = $(item).offset().top - 100;
 419                                 if (event.keyCode === 74) {
 420                                         comparison = top > scrollTop + 1;
 421                                 } else if (event.keyCode === 75) {
 422                                         comparison = top < scrollTop - 1;
 423                                 }
 424                                 if (comparison) {
 425                                         $('html, body').animate({scrollTop: top}, 200);
 426                                         return false;
 427                                 }
 428                         });
 429                 }
 430         });
 431
 432         // Set an event listener for infinite scroll
 433         if (typeof infinite_scroll !== 'undefined') {
 434                 $(window).scroll(function(e) {
 435                         if ($(document).height() != $(window).height()) {
 436                                 // First method that is expected to work - but has problems with Chrome
 437                                 if ($(window).scrollTop() > ($(document).height() - $(window).height() * 1.5))
 438                                         loadScrollContent();
 439                         } else {
 440                                 // This method works with Chrome - but seems to be much slower in Firefox
 441                                 if ($(window).scrollTop() > (($("section").height() + $("header").height() + $("footer").height()) - $(window).height() * 1.5)) {
 442                                         loadScrollContent();
 443                                 }
 444                         }
 445                 });
 446         }
 447 });
 448
 449 /**
 450  * Inserts a BBCode tag in the comment textarea identified by id
 451  *
 452  * @param {string} BBCode
 453  * @param {int} id
 454  * @returns {boolean}
 455  */
 456 function insertFormatting(BBCode, id) {
 457         let textarea = document.getElementById('comment-edit-text-' + id);
 458
 459         if (textarea.value === '') {
 460                 $(textarea)
 461                         .addClass("comment-edit-text-full")
 462                         .removeClass("comment-edit-text-empty");
 463                 closeMenu("comment-fake-form-" + id);
 464                 openMenu("item-comments-" + id);
 465         }
 466
 467         insertBBCodeInTextarea(BBCode, textarea);
 468
 469         return true;
 470 }
 471
 472 /**
 473  * Inserts a BBCode tag in the provided textarea element, wrapping the currently selected text.
 474  * For URL BBCode, it discriminates between link text and non-link text to determine where to insert the selected text.
 475  *
 476  * @param {string} BBCode
 477  * @param {HTMLTextAreaElement} textarea
 478  */
 479 function insertBBCodeInTextarea(BBCode, textarea) {
 480         let selectionStart = textarea.selectionStart;
 481         let selectionEnd = textarea.selectionEnd;
 482         let selectedText = textarea.value.substring(selectionStart, selectionEnd);
 483         let openingTag = '[' + BBCode + ']';
 484         let closingTag = '[/' + BBCode + ']';
 485         let cursorPosition = selectionStart + openingTag.length + selectedText.length;
 486
 487         if (BBCode === 'url') {
 488                 if (urlRegex.test(selectedText)) {
 489                         openingTag = '[' + BBCode + '=' + selectedText + ']';
 490                         selectedText = '';
 491                         cursorPosition = selectionStart + openingTag.length;
 492                 } else {
 493                         openingTag = '[' + BBCode + '=]';
 494                         cursorPosition = selectionStart + openingTag.length - 1;
 495                 }
 496         }
 497
 498         textarea.value = textarea.value.substring(0, selectionStart) + openingTag + selectedText + closingTag + textarea.value.substring(selectionEnd, textarea.value.length);
 499         textarea.setSelectionRange(cursorPosition, cursorPosition);
 500         textarea.dispatchEvent(new Event('change'));
 501         textarea.focus();
 502 }
 503
 504 function NavUpdate() {
 505         if (!stopped) {
 506                 var pingCmd = 'ping?format=json' + ((localUser != 0) ? '&uid=' + localUser : '');
 507                 $.get(pingCmd, function(data) {
 508                         if (data.result) {
 509                                 // send nav-update event
 510                                 $('nav').trigger('nav-update', data.result);
 511
 512                                 // start live update
 513                                 ['network', 'profile', 'community', 'notes', 'display', 'contact'].forEach(function (src) {
 514                                         if ($('#live-' + src).length) {
 515                                                 liveUpdate(src);
 516                                         }
 517                                 });
 518                                 if ($('#live-photos').length) {
 519                                         if (liking) {
 520                                                 liking = 0;
 521                                                 window.location.href = window.location.href;
 522                                         }
 523                                 }
 524                         }
 525                 });
 526         }
 527         timer = setTimeout(NavUpdate, updateInterval);
 528 }
 529
 530 function updateConvItems(data) {
 531         // add a new thread
 532         $('.toplevel_item',data).each(function() {
 533                 var ident = $(this).attr('id');
 534
 535                 // Add new top-level item.
 536                 if ($('#' + ident).length === 0
 537                         && (!getUrlParameter('page')
 538                                 && !getUrlParameter('max_id')
 539                                 && !getUrlParameter('since_id')
 540                                 || getUrlParameter('page') === '1'
 541                         )
 542                 ) {
 543                         $('#' + prev).after($(this));
 544
 545                 // Replace already existing thread.
 546                 } else {
 547                         // Find out if the hidden comments are open, so we can keep it that way
 548                         // if a new comment has been posted
 549                         var id = $('.hide-comments-total', this).attr('id');
 550                         if (typeof id != 'undefined') {
 551                                 id = id.split('-')[3];
 552                                 var commentsOpen = $("#collapsed-comments-" + id).is(":visible");
 553                         }
 554
 555                         $('#' + ident).replaceWith($(this));
 556
 557                         if (typeof id != 'undefined') {
 558                                 if (commentsOpen) {
 559                                         showHideComments(id);
 560                                 }
 561                         }
 562                 }
 563                 prev = ident;
 564         });
 565
 566         $('.like-rotator').hide();
 567         if (commentBusy) {
 568                 commentBusy = false;
 569                 $('body').css('cursor', 'auto');
 570         }
 571         /* autocomplete @nicknames */
 572         $(".comment-edit-form  textarea").editor_autocomplete(baseurl + '/search/acl');
 573         /* autocomplete bbcode */
 574         $(".comment-edit-form  textarea").bbco_autocomplete('bbcode');
 575 }
 576
 577 function liveUpdate(src) {
 578         if ((src == null) || stopped || !profile_uid) {
 579                 $('.like-rotator').hide(); return;
 580         }
 581
 582         if (($('.comment-edit-text-full').length) || in_progress) {
 583                 if (livetime) {
 584                         clearTimeout(livetime);
 585                 }
 586                 livetime = setTimeout(function() {liveUpdate(src)}, 5000);
 587                 return;
 588         }
 589
 590         if (livetime != null) {
 591                 livetime = null;
 592         }
 593         prev = 'live-' + src;
 594
 595         in_progress = true;
 596
 597         let force = force_update || $(document).scrollTop() === 0;
 598
 599         var orgHeight = $("section").height();
 600
 601         var udargs = ((netargs.length) ? '/' + netargs : '');
 602
 603         var update_url = 'update_' + src + udargs + '&p=' + profile_uid + '&force=' + (force ? 1 : 0) + '&item=' + update_item;
 604
 605         if (force_update) {
 606                 force_update = false;
 607         }
 608
 609         if (getUrlParameter('page')) {
 610                 update_url += '&page=' + getUrlParameter('page');
 611         }
 612         if (getUrlParameter('since_id')) {
 613                 update_url += '&since_id=' + getUrlParameter('since_id');
 614         }
 615         if (getUrlParameter('max_id')) {
 616                 update_url += '&max_id=' + getUrlParameter('max_id');
 617         }
 618
 619         $.get(update_url, function(data) {
 620                 in_progress = false;
 621                 update_item = 0;
 622
 623                 $('.wall-item-body', data).imagesLoaded(function() {
 624                         updateConvItems(data);
 625
 626                         document.dispatchEvent(new Event('postprocess_liveupdate'));
 627
 628                         // Update the scroll position.
 629                         $(window).scrollTop($(window).scrollTop() + $("section").height() - orgHeight);
 630                 });
 631         });
 632 }
 633
 634 function imgbright(node) {
 635         $(node).removeClass("drophide").addClass("drop");
 636 }
 637
 638 function imgdull(node) {
 639         $(node).removeClass("drop").addClass("drophide");
 640 }
 641
 642 // Since our ajax calls are asynchronous, we will give a few
 643 // seconds for the first ajax call (setting like/dislike), then
 644 // run the updater to pick up any changes and display on the page.
 645 // The updater will turn any rotators off when it's done.
 646 // This function will have returned long before any of these
 647 // events have completed and therefore there won't be any
 648 // visible feedback that anything changed without all this
 649 // trickery. This still could cause confusion if the "like" ajax call
 650 // is delayed and NavUpdate runs before it completes.
 651
 652 /**
 653  * @param {int}     ident The id of the relevant item
 654  * @param {string}  verb  The verb of the action
 655  * @param {boolean} un    Whether to perform an activity removal instead of creation
 656  */
 657 function dolike(ident, verb, un) {
 658         unpause();
 659         $('#like-rotator-' + ident.toString()).show();
 660         verb = un ? 'un' + verb : verb;
 661         $.get('like/' + ident.toString() + '?verb=' + verb, NavUpdate);
 662         liking = 1;
 663         force_update = true;
 664         update_item = ident.toString();
 665 }
 666
 667 function dosubthread(ident) {
 668         unpause();
 669         $('#like-rotator-' + ident.toString()).show();
 670         $.get('subthread/' + ident.toString(), NavUpdate);
 671         liking = 1;
 672 }
 673
 674 function dostar(ident) {
 675         ident = ident.toString();
 676         $('#like-rotator-' + ident).show();
 677         $.get('starred/' + ident, function(data) {
 678                 if (data.match(/1/)) {
 679                         $('#starred-' + ident).addClass('starred');
 680                         $('#starred-' + ident).removeClass('unstarred');
 681                         $('#star-' + ident).addClass('hidden');
 682                         $('#unstar-' + ident).removeClass('hidden');
 683                 } else {
 684                         $('#starred-' + ident).addClass('unstarred');
 685                         $('#starred-' + ident).removeClass('starred');
 686                         $('#star-' + ident).removeClass('hidden');
 687                         $('#unstar-' + ident).addClass('hidden');
 688                 }
 689                 $('#like-rotator-' + ident).hide();
 690         });
 691 }
 692
 693 function dopin(ident) {
 694         ident = ident.toString();
 695         $('#like-rotator-' + ident).show();
 696         $.get('pinned/' + ident, function(data) {
 697                 if (data.match(/1/)) {
 698                         $('#pinned-' + ident).addClass('pinned');
 699                         $('#pinned-' + ident).removeClass('unpinned');
 700                         $('#pin-' + ident).addClass('hidden');
 701                         $('#unpin-' + ident).removeClass('hidden');
 702                 } else {
 703                         $('#pinned-' + ident).addClass('unpinned');
 704                         $('#pinned-' + ident).removeClass('pinned');
 705                         $('#pin-' + ident).removeClass('hidden');
 706                         $('#unpin-' + ident).addClass('hidden');
 707                 }
 708                 $('#like-rotator-' + ident).hide();
 709         });
 710 }
 711
 712 function doignore(ident) {
 713         ident = ident.toString();
 714         $('#like-rotator-' + ident).show();
 715         $.get('item/ignore/' + ident, function(data) {
 716                 if (data === 1) {
 717                         $('#ignored-' + ident)
 718                                 .addClass('ignored')
 719                                 .removeClass('unignored');
 720                         $('#ignore-' + ident).addClass('hidden');
 721                         $('#unignore-' + ident).removeClass('hidden');
 722                 } else {
 723                         $('#ignored-' + ident)
 724                                 .addClass('unignored')
 725                                 .removeClass('ignored');
 726                         $('#ignore-' + ident).removeClass('hidden');
 727                         $('#unignore-' + ident).addClass('hidden');
 728                 }
 729                 $('#like-rotator-' + ident).hide();
 730         });
 731 }
 732
 733 function getPosition(e) {
 734         var cursor = {x:0, y:0};
 735
 736         if (e.pageX || e.pageY) {
 737                 cursor.x = e.pageX;
 738                 cursor.y = e.pageY;
 739         } else {
 740                 if (e.clientX || e.clientY) {
 741                         cursor.x = e.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
 742                         cursor.y = e.clientY + (document.documentElement.scrollTop  || document.body.scrollTop)  - document.documentElement.clientTop;
 743                 } else if (e.x || e.y) {
 744                         cursor.x = e.x;
 745                         cursor.y = e.y;
 746                 }
 747         }
 748         return cursor;
 749 }
 750
 751 var lockvisible = false;
 752
 753 function lockview(event, type, id) {
 754         event = event || window.event;
 755         cursor = getPosition(event);
 756         if (lockvisible) {
 757                 lockvisible = false;
 758                 $('#panel').hide();
 759         } else {
 760                 lockvisible = true;
 761                 $.get('permission/tooltip/' + type + '/' + id, function(data) {
 762                         $('#panel')
 763                                 .html(data)
 764                                 .css({'left': cursor.x + 5 , 'top': cursor.y + 5})
 765                                 .show();
 766                 });
 767         }
 768 }
 769
 770 function post_comment(id) {
 771         unpause();
 772         commentBusy = true;
 773         $('body').css('cursor', 'wait');
 774         $.post(
 775                 "item",
 776                 $("#comment-edit-form-" + id).serialize(),
 777                 function(data) {
 778                         if (data.success) {
 779                                 $("#comment-edit-wrapper-" + id).hide();
 780                                 $("#comment-edit-text-" + id).val('');
 781                                 var tarea = document.getElementById("comment-edit-text-" + id);
 782                                 if (tarea) {
 783                                         commentClose(tarea,id);
 784                                 }
 785                                 if (timer) {
 786                                         clearTimeout(timer);
 787                                 }
 788                                 timer = setTimeout(NavUpdate,10);
 789                                 force_update = true;
 790                                 update_item = id;
 791                         }
 792                         if (data.reload) {
 793                                 window.location.href=data.reload;
 794                         }
 795                 },
 796                 "json"
 797         );
 798         return false;
 799 }
 800
 801 function preview_comment(id) {
 802         $("#comment-edit-preview-" + id).show();
 803         $.post(
 804                 "item",
 805                 $("#comment-edit-form-" + id).serialize() + '&preview=1',
 806                 function(data) {
 807                         if (data.preview) {
 808                                 $("#comment-edit-preview-" + id).html(data.preview);
 809                                 $("#comment-edit-preview-" + id + " a").click(function() {return false;});
 810                         }
 811                 },
 812                 "json"
 813         );
 814         return true;
 815 }
 816
 817 function showHideComments(id) {
 818         if ($('#collapsed-comments-' + id).is(':visible')) {
 819                 $('#collapsed-comments-' + id).slideUp();
 820                 $('#hide-comments-' + id).hide();
 821                 $('#hide-comments-total-' + id).show();
 822         } else {
 823                 $('#collapsed-comments-' + id).slideDown();
 824                 $('#hide-comments-' + id).show();
 825                 $('#hide-comments-total-' + id).hide();
 826         }
 827 }
 828
 829 function preview_post() {
 830         $("#jot-preview-content").show();
 831         $.post(
 832                 "item",
 833                 $("#profile-jot-form").serialize() + '&preview=1',
 834                 function(data) {
 835                         if (data.preview) {
 836                                 $("#jot-preview-content").html(data.preview);
 837                                 $("#jot-preview-content" + " a").click(function() {return false;});
 838                                 document.dispatchEvent(new Event('postprocess_liveupdate'));
 839                         }
 840                 },
 841                 "json"
 842         );
 843         return true;
 844 }
 845
 846 function unpause() {
 847         // unpause auto reloads if they are currently stopped
 848         totStopped = false;
 849         stopped = false;
 850         $('#pause').html('');
 851 }
 852
 853 // load more network content (used for infinite scroll)
 854 function loadScrollContent() {
 855         if (lockLoadContent) {
 856                 return;
 857         }
 858         lockLoadContent = true;
 859
 860         $("#scroll-loader").fadeIn('normal');
 861
 862         match = $("span.received").last();
 863         if (match.length > 0) {
 864                 received = match[0].innerHTML;
 865         } else {
 866                 received = "0000-00-00 00:00:00";
 867         }
 868
 869         match = $("span.created").last();
 870         if (match.length > 0) {
 871                 created = match[0].innerHTML;
 872         } else {
 873                 created = "0000-00-00 00:00:00";
 874         }
 875
 876         match = $("span.commented").last();
 877         if (match.length > 0) {
 878                 commented = match[0].innerHTML;
 879         } else {
 880                 commented = "0000-00-00 00:00:00";
 881         }
 882
 883         match = $("span.uriid").last();
 884         if (match.length > 0) {
 885                 uriid = match[0].innerHTML;
 886         } else {
 887                 uriid = "0";
 888         }
 889
 890         // get the raw content from the next page and insert this content
 891         // right before "#conversation-end"
 892         $.get(infinite_scroll.reload_uri + '&mode=raw&last_received=' + received + '&last_commented=' + commented + '&last_created=' + created + '&last_uriid=' + uriid, function(data) {
 893                 $("#scroll-loader").hide();
 894                 if ($(data).length > 0) {
 895                         $(data).insertBefore('#conversation-end');
 896                         lockLoadContent = false;
 897                 } else {
 898                         $("#scroll-end").fadeIn('normal');
 899                 }
 900
 901                 document.dispatchEvent(new Event('postprocess_liveupdate'));
 902         });
 903 }
 904
 905 function bin2hex(s) {
 906         // Converts the binary representation of data to hex
 907         //
 908         // version: 812.316
 909         // discuss at: http://phpjs.org/functions/bin2hex
 910         // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
 911         // +   bugfixed by: Onno Marsman
 912         // +   bugfixed by: Linuxworld
 913         // *     example 1: bin2hex('Kev');
 914         // *     returns 1: '4b6576'
 915         // *     example 2: bin2hex(String.fromCharCode(0x00));
 916         // *     returns 2: '00'
 917         var v,i, f = 0, a = [];
 918         s += '';
 919         f = s.length;
 920
 921         for (i = 0; i<f; i++) {
 922                 a[i] = s.charCodeAt(i).toString(16).replace(/^([\da-f])$/,"0$1");
 923         }
 924
 925         return a.join('');
 926 }
 927
 928 function groupChangeMember(gid, cid, sec_token) {
 929         $('body .fakelink').css('cursor', 'wait');
 930         $.get('group/' + gid + '/' + cid + "?t=" + sec_token, function(data) {
 931                         $('#group-update-wrapper').html(data);
 932                         $('body .fakelink').css('cursor', 'auto');
 933         });
 934 }
 935
 936 function contactgroupChangeMember(checkbox, gid, cid) {
 937         let url;
 938         // checkbox.checked is the checkbox state after the click
 939         if (checkbox.checked) {
 940                 url = 'group/' + gid + '/add/' + cid;
 941         } else {
 942                 url = 'group/' + gid + '/remove/' + cid;
 943         }
 944         $('body').css('cursor', 'wait');
 945         $.post(url)
 946         .error(function () {
 947                 // Restores previous state in case of error
 948                 checkbox.checked = !checkbox.checked;
 949         })
 950         .always(function() {
 951                 $('body').css('cursor', 'auto');
 952         });
 953
 954         return true;
 955 }
 956
 957 function checkboxhighlight(box) {
 958         if ($(box).is(':checked')) {
 959                 $(box).addClass('checkeditem');
 960         } else {
 961                 $(box).removeClass('checkeditem');
 962         }
 963 }
 964
 965 function notificationMarkAll() {
 966         $.get('notification/mark/all', function(data) {
 967                 if (timer) {
 968                         clearTimeout(timer);
 969                 }
 970                 timer = setTimeout(NavUpdate,1000);
 971                 force_update = true;
 972         });
 973 }
 974
 975 /**
 976  * sprintf in javascript
 977  *      "{0} and {1}".format('zero','uno');
 978  **/
 979 String.prototype.format = function() {
 980         var formatted = this;
 981         for (var i = 0; i < arguments.length; i++) {
 982                 var regexp = new RegExp('\\{'+i+'\\}', 'gi');
 983                 formatted = formatted.replace(regexp, arguments[i]);
 984         }
 985         return formatted;
 986 };
 987 // Array Remove
 988 Array.prototype.remove = function(item) {
 989         to=undefined; from=this.indexOf(item);
 990         var rest = this.slice((to || from) + 1 || this.length);
 991         this.length = from < 0 ? this.length + from : from;
 992         return this.push.apply(this, rest);
 993 };
 994
 995 function previewTheme(elm) {
 996         theme = $(elm).val();
 997         $.getJSON('pretheme?theme=' + theme,function(data) {
 998                         $('#theme-preview').html('<div id="theme-desc">' + data.desc + '</div><div id="theme-version">' + data.version + '</div><div id="theme-credits">' + data.credits + '</div><a href="' + data.img + '"><img src="' + data.img + '" width="320" height="240" alt="' + theme + '" /></a>');
 999         });
1000
1001 }
1002
1003 // notification permission settings in localstorage
1004 // set by settings page
1005 function getNotificationPermission() {
1006         if (window["Notification"] === undefined) {
1007                 return null;
1008         }
1009
1010         if (Notification.permission === 'granted') {
1011                 var val = localStorage.getItem('notification-permissions');
1012                 if (val === null) {
1013                         return 'denied';
1014                 }
1015                 return val;
1016         } else {
1017                 return Notification.permission;
1018         }
1019 }
1020
1021 /**
1022  * Show a dialog loaded from an url
1023  * By defaults this load the url in an iframe in colorbox
1024  * Themes can overwrite `show()` function to personalize it
1025  */
1026 var Dialog = {
1027         /**
1028          * Show the dialog
1029          *
1030          * @param string url
1031          * @return object colorbox
1032          */
1033         show : function (url) {
1034                 var size = Dialog._get_size();
1035                 return $.colorbox({href: url, iframe:true,innerWidth: size.width+'px',innerHeight: size.height+'px'})
1036         },
1037
1038         /**
1039          * Show the Image browser dialog
1040          *
1041          * @param string name
1042          * @param string id (optional)
1043          * @return object
1044          *
1045          * The name will be used to build the event name
1046          * fired by image browser dialog when the user select
1047          * an image. The optional id will be passed as argument
1048          * to the event handler
1049          */
1050         doImageBrowser : function (name, id) {
1051                 var url = Dialog._get_url("image",name,id);
1052                 return Dialog.show(url);
1053         },
1054
1055         /**
1056          * Show the File browser dialog
1057          *
1058          * @param string name
1059          * @param string id (optional)
1060          * @return object
1061          *
1062          * The name will be used to build the event name
1063          * fired by file browser dialog when the user select
1064          * a file. The optional id will be passed as argument
1065          * to the event handler
1066          */
1067         doFileBrowser : function (name, id) {
1068                 var url = Dialog._get_url("file",name,id);
1069                 return Dialog.show(url);
1070         },
1071
1072         _get_url : function(type, name, id) {
1073                 var hash = name;
1074                 if (id !== undefined) {
1075                         hash = hash + "-" + id;
1076                 }
1077                 return baseurl + "/fbrowser/"+type+"/?mode=minimal#"+hash;
1078         },
1079
1080         _get_size: function() {
1081                 return {
1082                         width: window.innerWidth-50,
1083                         height: window.innerHeight-100
1084                 };
1085         }
1086 }
1087 // @license-end