panikweb_templates/static/js/specifics.js

   1 var urlParams;
   2 (window.onpopstate = function () {
   3     var match,
   4         pl     = /\+/g,  // Regex for replacing addition symbol with a space
   5         search = /([^&=]+)=?([^&]*)/g,
   6         decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); },
   7         query  = window.location.search.substring(1);
   8
   9     urlParams = {};
  10     while (match = search.exec(query))
  11        urlParams[decode(match[1])] = decode(match[2]);
  12 })();
  13
  14 $(function() {
  15
  16         doLog = function(aTextToLog, type){
  17                 var aLog = $('<div>',{'class':"log "+type,html:aTextToLog});
  18                 aLog.hide().prependTo($log).show('fast').delay(3000).hide('fast', function() {
  19                         $(this).remove();
  20                 });
  21         }
  22         var $main = $("#Changing");
  23         var $metaNav = $("#metaNav");
  24         var $log = $("#userLog");
  25         tooltip_options = {
  26                 position: {
  27                         my: "center bottom-5",
  28                         at: "center top",
  29                         using: function( position, feedback ) {
  30                                 $( this ).css( position );
  31                                 $( "<div>" )
  32                                 .addClass( "arrow" )
  33                                 .addClass( feedback.vertical )
  34                                 .addClass( feedback.horizontal )
  35                                 .appendTo( this );
  36                         }
  37                 }
  38         };
  39
  40         $('.newsRoll').tooltip(tooltip_options);
  41         $('#metaNav').tooltip(tooltip_options);
  42
  43         /****************************************************/
  44         /**** AJAX UTILITIES FOR REQUESTS ****/
  45         /****************************************************/
  46         String.prototype.decodeHTML = function() {
  47                 return $("<div>", {html: "" + this}).html();
  48         };
  49         var loadPage_request = null;
  50         afterLoad = function(html, textStatus, XMLHttpRequest) {
  51                 loadPage_request = null;
  52                 if (textStatus == "error") {
  53                         doLog('Sorry! And error occur when loading page content','error');
  54                 }
  55                 new_html = $.parseHTML(html);
  56                 new_content = $(new_html).find('#Changing>*');
  57                 $main.hide().empty().append(new_content).show();
  58
  59                 /* calling onpopstate here is necessary to get urlParams to be
  60                  * updated */
  61                 window.onpopstate();
  62
  63                 canonical_href_node = $.grep($(new_html), function(elem, idx) {
  64                         return (elem.nodeName === "LINK" && elem.attributes['rel'].value == "canonical");
  65                 })[0];
  66                 if (canonical_href_node) {
  67                         canonical_href = canonical_href_node.attributes['href'].value;
  68                         history.replaceState({}, '', canonical_href);
  69                 }
  70
  71                 new_menu = $($.parseHTML(html)).find('#metaNav>*');
  72                 $metaNav.empty().append(new_menu);
  73
  74                 var newTitle = html?html.match(/<title>(.*?)<\/title>/):'';
  75                 if(newTitle){document.title = newTitle[1].trim().decodeHTML();}
  76
  77                 /*
  78                 Quite UGLY but needed for styling the whole body with ID
  79                 Feel free to correct and find a better way
  80                 According to this link the probles is that $(html).filter('body').Attr('id') will not work!
  81                 http://www.devnetwork.net/viewtopic.php?f=13&t=117065
  82                 */
  83                 if(sectionName = $(html).find('[data-section]').attr('data-section')){
  84                         $('body').attr('id',sectionName);
  85                 }else{
  86                         var bodyID = html.match(/<body id="(.*?)">/);
  87                         if(bodyID){$('body').attr('id',bodyID[1].trim());}
  88                 }
  89                 $.scrollTo('#Changing',1000,{offset:-$('#metaNav').height()+2});
  90                 init();
  91
  92                 if (typeof (Piwik) == 'object') {
  93                         piwikTracker = Piwik.getAsyncTracker();
  94                         if (typeof (piwikTracker.trackPageView) == 'function') {
  95                                 piwikTracker.setDocumentTitle(document.title);
  96                                 piwikTracker.setCustomUrl(window.location.href);
  97                                 piwikTracker.trackPageView();
  98                                 $('.audio a').each(function() {
  99                                         piwikTracker.addListener(this);
 100                                 });
 101                         }
 102                 }
 103
 104         };
 105
 106         function afterLoadError(xhr, text, error) {
 107                 afterLoad(xhr.responseText, 'error', xhr);
 108         };
 109
 110         $(window).on("popstate", function(e) {
 111                 if (e.originalEvent.state !== null) {loadPage(location.href, false);}
 112         });
 113
 114         loadPage = function(href, push_state) {
 115                 if (push_state !== false) {
 116                         history.pushState({}, '', href);
 117                 }
 118                 if (loadPage_request !== null) {
 119                         loadPage_request.abort();
 120                 }
 121                 loadPage_request = $.ajax({
 122                         url: href,
 123                         success: afterLoad,
 124                         error: afterLoadError,
 125                         dataType: 'html'});
 126         };
 127         $.fn.ajaxifyClick = function(params) {
 128                 if ($('#df-wpr-sidebar').length > 0) {
 129                         /* this is fiber sidebar, it doesn't work well with
 130                          * seamless page loading */
 131                         return;
 132                 }
 133                 this.each(function() {
 134                         $(this).unbind('click');
 135                         $(this).bind('click',function(e){
 136                                 var href = $(this).attr("href");
 137                                 if (href.match('\.(pdf|odt|ods|doc|xls|docx|xlsx|rtf)$')) {
 138                                         /* open files */
 139                                         window.open(href, '_blank');
 140                                         return false;
 141                                 }
 142                                 if (e.which == 2) {
 143                                         window.open(href, '_blank');
 144                                         return false;
 145                                 }
 146                                 $(this).addClass('loading');
 147                                 /* this checks the link points to a local document, be
 148                                  * it because it's just a path, or because the server
 149                                  * part points to the same domain */
 150                                 if (!href) {
 151                                         doLog('No href attributes, unable to load content','error');
 152                                         $("#All a, #All area").removeClass('loading');
 153                                         return false;
 154                                 }else if (!$(this).attr('target') && (
 155                                                 href.indexOf(document.domain) > -1 ||href.indexOf(':') === -1 || href.indexOf(':') > 5
 156                                         )) {
 157                                         loadPage(href);
 158                                         return false;
 159                                 }else{
 160                                         $(this).attr('target','_blank');
 161                                         $("#All a, #All area").removeClass('loading');
 162                                         return true;
 163                                 }
 164                         });
 165                 });
 166         };
 167         /****************************************************/
 168         /**** AUDIOPLAYER ****/
 169         /****************************************************/
 170
 171         var timer = null;
 172         var refresh_onair_interval = 25000;
 173         var ticker_interval = null;
 174         /*
 175         //TODO: mini icon version for player, (playpause only)
 176         $('#togglePlayer').on('click',function(e) {
 177                 e.preventDefault();
 178                 if($(this).is('.icon-double-angle-left')){
 179                         $("#player").fadeOut('fast',function(){
 180                                 $("#player-container").toggleClass('minimized');
 181                                 $('#togglePlayer').toggleClass('icon-double-angle-left icon-double-angle-right');
 182                         });
 183                 }else{
 184                         $("#player").fadeIn('fast',function(){
 185                                 $("#player-container").toggleClass('minimized');
 186                                 $('#togglePlayer').toggleClass('icon-double-angle-left icon-double-angle-right');
 187                         });
 188                 }
 189                 return false;
 190         });
 191         */
 192         $('#WhatsOnAir').on('load',function(){
 193                 var WhatsOnAir = $(this);
 194                 $('#RefreshWhatsOnAir').addClass('spinning');
 195                 $.getJSON('/onair.json', function(onair) {
 196                         setTimeout(function() { $('#RefreshWhatsOnAir').removeClass('spinning'); }, 5000);
 197                         var onairContainer = $('<span>');
 198                         if(onair.data.episode || onair.data.emission) {
 199                                 if(onair.data.emission){
 200                                         $('<a>',{href:onair.data.emission.url,html:onair.data.emission.title}).appendTo(onairContainer).ajaxifyClick();
 201                                 }
 202                                 if(onair.data.episode){
 203                                         $('<span> - </span>').appendTo(onairContainer);
 204                                         $('<a>',{href:onair.data.episode.url,html:onair.data.episode.title}).appendTo(onairContainer).ajaxifyClick();
 205                                 }
 206                         } else if (onair.data.nonstop) {
 207                                 onairContainer = $('<span>' + onair.data.nonstop.title + '</span>');
 208                                 if (onair.data.track_title) {
 209                                         $('<span> - </span>').appendTo(onairContainer);
 210                                         $('<span class="nonstop-track-title">' + onair.data.track_title + '</span>').appendTo(onairContainer);
 211                                         if (onair.data.track_artist) {
 212                                                 $('<span> </span>').appendTo(onairContainer)
 213                                                 $('<span class="nonstop-track-artist">(' + onair.data.track_artist + ')</span>').appendTo(onairContainer);
 214                                         }
 215                                 }
 216                         }
 217                         else {
 218                                 onairContainer = $('<span>Unknown (Probably Non-Stop)</span>');
 219                         }
 220                         var current_html = WhatsOnAir.html();
 221                         var new_html = '<span>' + onairContainer.html() + '</span>';
 222                         if (new_html !== current_html) {
 223                                 WhatsOnAir.fadeOut();
 224                                 WhatsOnAir.empty().append(onairContainer);
 225                                 WhatsOnAir.fadeIn();
 226                         }
 227                 });
 228         });
 229         $('#RefreshWhatsOnAir').on('activate',function(e){
 230                 $('#WhatsOnAir').trigger('load');
 231                 timer = setInterval( "$('#WhatsOnAir').trigger('load');", refresh_onair_interval);
 232         }).on('deactivate',function(e){
 233                 $(this).removeClass('spinning');
 234                 $('#WhatsOnAir').removeClass('active');
 235                 clearInterval(timer);
 236         }).on('click',function(e){
 237                 $(this).toggleClass('active');
 238                 if($(this).is('.active')){
 239                         $(this).trigger('deactivate');
 240                 }else{
 241                         $(this).trigger('activate');
 242                 }
 243                 return false;
 244         }).trigger('activate');
 245         $("#DirectStreamPanikControler").on('click',function(e) {
 246                 e.preventDefault();
 247                 var stream = $('#DirectStreamPanik').get(0);
 248                 if (stream.paused == false){
 249                         stream.pause();
 250                 }else{
 251                         if (typeof (_paq) == 'object') {
 252                                 _paq.push(['trackEvent', 'Audio', 'Play Stream']);
 253                         }
 254                         stream.play();
 255                 }
 256                 return false;
 257         });
 258         $('#DirectStreamPanik').on('play',function(){
 259                 $('audio:not(#DirectStreamPanik)').each(function(){this.pause();});
 260                 $('#streamSymbol').removeClass('icon-volume-up').addClass('icon-pause');
 261                 $('#RefreshWhatsOnAir').trigger('activate');
 262         }).on('pause',function(){
 263                 //$('audio:not(#DirectStreamPanik)').each(function(){this.pause();});
 264                 $('#streamSymbol').addClass('icon-volume-up').removeClass('icon-pause');
 265         });
 266         if($('#player-container').offset()){
 267                 var topPosition = 0;
 268                 topPosition = $('#mainHeader > div').offset().top + $('#mainHeader > div').height();
 269                 $(window).bind('scroll load',function (event) {
 270                         //$('#player-container').removeClass('fixed');
 271                         var y = $(this).scrollTop() + 40;
 272                         if (topPosition!== 0 && y >= topPosition) {
 273                                 $('#player-container').addClass('fixed').removeClass('normal');
 274                         } else {
 275                                 $('#player-container').removeClass('fixed').addClass('normal');
 276                         }
 277                 });
 278         }
 279
 280         var $localList = $('#localList').playlist({
 281                 controlContainer: $('<div>',{'class':"playListControls"}).sortable(),
 282                 playlistContainer: $('<ol>',{id:"myPlaylist",'class':"custom"}).sortable(),
 283                 onLoad:function(self){
 284                         $('#toggleList').on('click',function(){
 285                                 self.playlistContainer.toggleClass('deploy');
 286                         });
 287                         $('#emptyList').on('click',function(){
 288                                 self._reset();
 289                         });
 290
 291                         if(self.isActive){
 292                                 self.playlistContainer.scrollTo(self.isActive, 800 );
 293                                 self.isActive.find('audio').attr('preload',"preload")
 294                         }
 295                         self.controlButtons['playpause'].addClass('resymbol');
 296                 },
 297                 onPlay:function(self){
 298                         $('#DirectStreamPanik')[0].pause();
 299                         self.playlistContainer.scrollTo(self.isActive, 800 );
 300                 },
 301                 onAdd:function(self){
 302                         //self.isLastAdd[0].scrollIntoView();
 303                         self.isLastAdd.find('a').ajaxifyClick();
 304                         self.playlistContainer.scrollTo(self.isLastAdd, 800).delay(1000).scrollTo(self.isActive, 800 ).clearQueue();
 305
 306                         if (typeof (_paq) == 'object') {
 307                                 _paq.push(['trackEvent', 'Audio', 'Add to playlist']);
 308                         }
 309                 },
 310                 onUpdate:function(self){
 311                         //doLog(JSON.stringify(self.playlist, null, '\t'));
 312                         if(self.playlist.length >= 1){
 313                                 self.element.show();
 314                                 $('#Player').addClass('withPlaylist').removeClass('withoutPlaylist');
 315                         }else{
 316                                 self.element.hide();
 317                                 $('#Player').removeClass('withPlaylist').addClass('withoutPlaylist');
 318                         }
 319                 }
 320         });
 321
 322         init = function() {
 323                 $("#All a, #All area").removeClass('loading');
 324                 $("#All a, #All area").ajaxifyClick();
 325                 $("#search-form").unbind('submit').on('submit', function(event) {
 326                         event.preventDefault();
 327                         $(this).addClass('loading');
 328                         loadPage($(this).attr('action') + '?' + $(this).serialize());
 329                 });
 330                 $(".tabs").each(function() {
 331                         var self = $(this);
 332                         var about= $($(this).attr("data-tab-about"));
 333                         var current = $(this).find("[data-tab].active")[0];
 334                         var dftShowSelector = current?".active":":first";
 335                         var activeTab = $(this).find("[data-tab]"+dftShowSelector+"").addClass("active");
 336                         $(this).find("[data-tab]").each(function() {
 337                             $(this).on('click load',function (e) {
 338                                 e.preventDefault();
 339                                 self.find(".active").removeClass("active");
 340                                 $(this).addClass("active");
 341                                 about.find("[data-tabbed]").hide();
 342                                 $($(this).attr("data-tab")).fadeIn();
 343
 344                             });
 345                         });
 346                         activeTab.trigger('load');
 347                 });
 348                 $('[data-player-action]').on('click',function(){
 349                         var audio = $('#'+$(this).attr('data-player-audio'));
 350                         var sound_id = audio.data('sound-id');
 351                         if($(this).attr('data-player-action') == "registerAudio"){
 352                                 $localList.playlist("registerAudio",audio,doLog(audio.attr('title')+' has been added to your playlist.','ok'));
 353                         }else if($(this).attr('data-player-action') == "playAudio"){
 354                                 $localList.playlist("registerAudio",audio,doLog(audio.attr('title')+' will play soon.','ok'));
 355                                 $localList.playlist("playSoundId", sound_id);
 356                                 if ($(this).parent().find('.icon-pause').length) {
 357                                         $(this).hide();
 358                                         $(this).parent().find('.icon-pause').show();
 359                                 }
 360                         }else if ($(this).attr('data-player-action') == "pauseSounds") {
 361                                 if ($(this).parent().find('.icon-play-sign').length) {
 362                                         $(this).hide();
 363                                         $(this).parent().find('.icon-play-sign').show();
 364                                 }
 365                                 $localList.playlist($(this).attr('data-player-action'));
 366                         }else{
 367                                 $localList.playlist($(this).attr('data-player-action'));
 368                         }
 369                 });
 370                 $('[data-player-control]').each(function(){
 371                         var audio = $('#'+$(this).attr('data-player-audio'));
 372                         $localList.playlist("bindControl",$(this).attr('data-player-control'),audio,$(this));
 373                 });
 374
 375                 $('[data-highlight]').on('check',function(){
 376                         $($(this).attr('data-about')).find($(this).attr('data-highlight')).addClass('highlighted').removeClass('normal');
 377                 }).on('uncheck',function(){
 378                         $($(this).attr('data-about')).find($(this).attr('data-highlight')).removeClass('highlighted').addClass('normal');
 379                 }).on('click',function(){
 380                         $(this).toggleClass('icon-check icon-check-empty');
 381                         if($(this).hasClass('icon-check')){$(this).trigger('check');
 382                         }else{  $(this).trigger('uncheck');}
 383                 });
 384                 $('[data-highlight].icon-check-empty').each(function(){
 385                         $(this).trigger('uncheck');
 386                 });
 387                 $('[data-toggle]').on('check',function(){
 388                         /* make sure all other unchecked items are hidden */
 389                         $('[data-toggle].icon-check-empty').each(function() {
 390                                 $($(this).attr('data-about')).find($(this).attr('data-toggle')).hide();
 391                         });
 392                         $($(this).attr('data-about')).find($(this).attr('data-toggle')).show();
 393                 }).on('uncheck',function(){
 394                         $($(this).attr('data-about')).find($(this).attr('data-toggle')).hide();
 395                         if ($('[data-toggle].icon-check').length == 0) {
 396                                 /* special case the situation where all toggles
 397                                  * are unchecked, as we want that to mean
 398                                  * "everything", not "nothing".
 399                                  */
 400                                 $('[data-toggle].icon-check-empty').each(function() {
 401                                         $($(this).attr('data-about')).find($(this).attr('data-toggle')).show();
 402                                 });
 403                         }
 404                 }).on('click',function(){
 405                         $(this).toggleClass('icon-check icon-check-empty');
 406                         if($(this).hasClass('icon-check')){$(this).trigger('check');
 407                         }else{  $(this).trigger('uncheck');}
 408                 });
 409                 $('[data-toggle].icon-check-empty').each(function(){
 410                         $(this).trigger('uncheck');
 411                 });
 412
 413                 initial_enabled_toggles = {};
 414                 if (typeof(urlParams.q) == 'string') {
 415                         urlParams.q.split('|').forEach(function(a) { initial_enabled_toggles[a] = 1; })
 416                 }
 417                 $('[data-toggle]').each(function() {
 418                         if ($(this).data('toggle').substring(1) in initial_enabled_toggles) {
 419                                 $(this).trigger('click');
 420                         }
 421                 });
 422
 423                 $('[data-popup-href]').on('click', function() {
 424                         $.ajax({
 425                                 url: $(this).data('popup-href'),
 426                                 success: function (html, textStatus, jqXhr) {
 427                                         $(html).appendTo($('body'));
 428                                 }
 429                         });
 430                         return false;
 431                 });
 432
 433                 if ($('input#id_q').val() == '') {
 434                         $('input#id_q').focus();
 435                 }
 436
 437                 $('#ticker li:not(:first)');
 438                 if (ticker_interval) clearInterval(ticker_interval);
 439                 function tick(){
 440                     $('#ticker li:first').animate({'opacity':0}, 200, function () {
 441                         $(this).appendTo($('#ticker')).css('opacity', 1);
 442                     });
 443                 }
 444                 $("#roller button").on('click',function(e){
 445                     clearInterval(ticker_interval);
 446                     e.preventDefault();
 447                     $($(this).attr('data-about')).prependTo('#ticker');
 448                     return false;
 449                 });
 450                 ticker_interval = setInterval(function(){tick();  }, 20000);/**/
 451
 452                 function navsearch_click(event) {
 453                         event.preventDefault();
 454                         var query = $('#nav-search input').val();
 455                         var form = $('#nav-search form');
 456                         var href = '';
 457                         if (query == '') {
 458                                 href = $(form).attr('action');
 459                         } else {
 460                                 href = $(form).attr('action') + '?' + $(form).serialize();
 461                         }
 462                         if (event.which == 2) {
 463                                 window.open(href, '_blank');
 464                         } else {
 465                                 $(this).addClass('loading');
 466                                 loadPage(href);
 467                         }
 468                         return false;
 469                 }
 470                 $('#nav-search a').unbind('click').on('click', navsearch_click);
 471                 $('#nav-search form').unbind('submit').on('submit', navsearch_click);
 472
 473                 $('[data-toggle-img]').bind('click', function() {
 474                         var src = $(this).data('toggle-img');
 475                         $(this).data('toggle-img', $(this).attr('src'));
 476                         $(this).attr('src', src);
 477                         $(this).toggleClass('right marged');
 478                 });
 479
 480                 $('#Main #Emission-tabs-detail audio, div.soundcell audio').each(function(index, audio) {
 481                         var audio_src = $(audio).find('source')[0];
 482                         var sound_id = $(audio).data('sound-id');
 483                         var $waveform = $(audio).next();
 484                         $.getJSON(audio_src.src.replace('.ogg', '.waveform.json'), function(data) {
 485                                 $waveform.empty();
 486                                 $waveform.append('<i class="duration">' + $waveform.data('duration-string') + '</i>');
 487                                 $.each(data, function(k, val) {
 488                                         var val = val * 0.5;
 489                                         $waveform.append('<span data-tick-index="' + k + '" style="height: ' + val + 'px;"></span>');
 490                                 });
 491                                 $waveform.show();
 492                                 $waveform.find('span').on('click', function() {
 493                                         /* if there's been something loaded */
 494                                         var matching_audio = $('audio[data-sound-id=' + sound_id + ']');
 495                                         if (matching_audio.length == 0) return;
 496                                         matching_audio = matching_audio[0];
 497                                         if (matching_audio.paused || matching_audio.ended) {
 498                                                 /* ignore */
 499                                                 return;
 500                                         }
 501                                         /* try to set time */
 502                                         var total_duration = parseFloat($waveform.data('duration'));
 503                                         var nb_ticks = $(this).parent().find('span').length;
 504                                         var tick_index = $(this).data('tick-index');
 505                                         matching_audio.currentTime = total_duration * tick_index / nb_ticks;
 506                                 });
 507                         });
 508                 });
 509
 510                 $('#nav-language span').click(function() {
 511                         document.cookie = 'panikweb_language=' + $(this).data('lang') + '; path=/';
 512                         window.location = window.location;
 513                         return false;
 514                 });
 515
 516                 if (document.cookie.indexOf('panikdb=on') != -1) {
 517                         panikdb_path = null;
 518                         if (window.location.pathname.indexOf('/emissions/') == 0) {
 519                                 panikdb_path = window.location.pathname;
 520                         } else if (window.location.pathname.indexOf('/news/') == 0) {
 521                                 panikdb_path = '/emissions' + window.location.pathname;
 522                         }
 523                         if (panikdb_path) {
 524                                 $('<a id="panikdb" href="http://panikdb.radiopanik.org' + panikdb_path + '">Voir dans PanikDB</a>').appendTo($main);
 525                         }
 526                 }
 527
 528                 $('.gallery').each(function() {
 529                   var $gallery = $(this);
 530                   $gallery.find('span.image').on('click', function() {
 531                     if ($(this).find('img').hasClass('portrait')) {
 532                         $(this).parents('.gallerycell').addClass('portrait');
 533                     } else {
 534                         $(this).parents('.gallerycell').removeClass('portrait');
 535                     }
 536                     $gallery.find('div.first img').attr('src', $(this).data('image-large'));
 537                     $gallery.find('div.first span.gallery-legend').text($(this).find('img').attr('title') || '');
 538                     $gallery.find('div.first').show('fade');
 539                     return false;
 540                   });
 541                   $gallery.find('div.first').on('click', function() { $(this).toggle('fade'); return false; });
 542                 });
 543
 544         }
 545         init();
 546
 547         if (! document.createElement('audio').canPlayType('audio/ogg') &&
 548                 document.createElement('audio').canPlayType('audio/aac') ) {
 549                 $('#ogg-m3u').hide().removeClass('resymbol');
 550                 $('#aac-m3u').addClass('resymbol').show();
 551         }
 552
 553         var konami = new Konami('/party');
 554
 555         $(document).on('panik:timeupdate', function(ev, data) {
 556                 $waveform = $('#Main div.waveform[data-sound-id="' + data.sound_id + '"]');
 557                 var elems = $waveform.find('span');
 558                 var total_elems = elems.length;
 559                 var done = total_elems * data.position;
 560                 $waveform.find('span').each(function(k, elem) {
 561                   if (k < done) {
 562                         $(elem).addClass('done').removeClass('current');
 563                   } else {
 564                         $(elem).removeClass('done');
 565                   }
 566                 });
 567                 $waveform.find('span.done:last').addClass('current');
 568         });
 569
 570         $("body").keydown(function(e) {
 571           var $visible_element = $('div.first:visible img');
 572           if ($visible_element.length == 0) {
 573             return true;
 574           }
 575           if ($visible_element.length > 1) {
 576             /* remove all but last */
 577             $visible_element.parent().find('img:not(:last)').remove();
 578           }
 579           var $visible_element = $('div.first:visible img');
 580           var img_url = $visible_element.attr('src');
 581           var all_img = $('div.gallery span[data-image-large] img');
 582           var active_img = $('div.gallery span[data-image-large="' + img_url + '"] img');
 583           var idx = all_img.index(active_img);
 584           if (e.which == 37) { // left
 585             idx--;
 586             if (idx == -1) {
 587               idx = all_img.length-1;
 588             }
 589           } else if (e.which == 39) { // right
 590             idx++;
 591             if (idx == all_img.length) {
 592               idx = 0;
 593             }
 594           } else if (e.which == 27) { // escape
 595             $visible_element.parent().toggle('fade');
 596             return true;
 597           } else {
 598             return true;
 599           }
 600           /* create a new <img> with the new image but opacity 0, then display
 601            * it using a css transition */
 602           if (e.which == 37) { $visible_element.css('transform-origin', 'bottom right'); }
 603           if (e.which == 39) { $visible_element.css('transform-origin', 'bottom left'); }
 604           var new_img = $visible_element.clone().appendTo($visible_element.parent());
 605           $(new_img).css('opacity', 0).attr('src', $(all_img[idx]).parent().data('image-large'));
 606           $(new_img).css('transform', 'scale(0, 1)');
 607           $(new_img)[0].offsetHeight; /* trigger reflow */
 608           $(new_img).css('opacity', 1).css('transform', 'scale(1)');
 609           $(new_img).parents('.gallery').find('span.gallery-legend').text($(all_img[idx]).attr('title') || '');
 610           if ($(all_img[idx]).hasClass('portrait')) {
 611             if (! $(new_img).parents('.gallerycell').hasClass('portrait')) {
 612               $visible_element.parent().find('img:not(:last)').remove();
 613               $(new_img).parents('.gallerycell').addClass('portrait');
 614             }
 615           } else {
 616             if ($(new_img).parents('.gallerycell').hasClass('portrait')) {
 617               $visible_element.parent().find('img:not(:last)').remove();
 618               $(new_img).parents('.gallerycell').removeClass('portrait');
 619             }
 620           }
 621           return false;
 622         });
 623
 624 });