/*! // Infinite Scroll jQuery plugin // copyright Paul Irish, licensed GPL & MIT // version 1.4.100211 // home and docs: http://www.infinite-scroll.com */ ;(function($){ $.fn.infinitescroll = function(options,callback){ // console log wrapper. function debug(msg,parts){ } // grab each selector option and see if any fail. function areSelectorsValid(opts){ for (var key in opts){ if (key.indexOf && key.indexOf('Selector') > -1 && $(opts[key]).length === 0){ debug('Your ' + key + ' found no elements.'); return false; } return true; } } // find the number to increment in the path. function determinePath(path){ path.match(relurl) ? path.match(relurl)[2] : path; // there is a 2 in the url surrounded by slashes, e.g. /page/2/ if ( path.match(/^(.*?)\b2\b(.*?$)/) ){ path = path.match(/^(.*?)\b2\b(.*?$)/).slice(1); } else // if there is any 2 in the url at all. if (path.match(/^(.*?)2(.*?$)/)){ // page= is used in django: // http://www.infinite-scroll.com/changelog/comment-page-1/#comment-127 if ( path.match(/^(.*?page=)2(\/.*|$)/) ){ path = path.match(/^(.*?page=)2(\/.*|$)/).slice(1); return path; } debug('Trying backup next selector parse technique. Treacherous waters here, matey.'); path = path.match(/^(.*?)2(.*?$)/).slice(1); } else { debug('Sorry, we couldn\'t parse your Next (Previous Posts) URL. Verify your the css selector points to the correct A tag. If you still get this error: yell, scream, and kindly ask for help at infinite-scroll.com.'); props.isInvalidPage = true; //prevent it from running on this page. } path[1] = ""; return path; } // 'document' means the full document usually, but sometimes the content of the overflow'd div in local mode function getDocumentHeight(){ // weird doubletouch of scrollheight because http://soulpass.com/2006/07/24/ie-and-scrollheight/ return opts.localMode ? ($(props.container)[0].scrollHeight && $(props.container)[0].scrollHeight) // needs to be document's height. (not props.container's) html's height is wrong in IE. : $(document).height() } function isNearBottom(){ // distance remaining in the scroll // computed as: document height - distance already scroll - viewport height - buffer var pixelsFromWindowBottomToBottom = 0 + getDocumentHeight() - ( opts.localMode ? $(props.container).scrollTop() : // have to do this bs because safari doesnt report a scrollTop on the html element ($(props.container).scrollTop() || $(props.container.ownerDocument.body).scrollTop()) ) - $(opts.localMode ? props.container : window).height(); debug('math:',pixelsFromWindowBottomToBottom, props.pixelsFromNavToBottom); // if distance remaining in the scroll (including buffer) is less than the orignal nav to bottom.... return (pixelsFromWindowBottomToBottom - opts.bufferPx < props.pixelsFromNavToBottom); } function showDoneMsg(){ props.loadingMsg .find('img').hide() .parent() .find('div').html(opts.donetext).animate({opacity: 1},2000).fadeOut('normal'); // user provided callback when done opts.errorCallback(); } function infscrSetup(){ if (props.isDuringAjax || props.isInvalidPage || props.isDone) return; if ( !isNearBottom(opts,props) ) return; $(document).trigger('retrieve.infscr.'+opts.infid); } // end of infscrSetup() function kickOffAjax(){ // we dont want to fire the ajax multiple times props.isDuringAjax = true; // show the loading message and hide the previous/next links props.loadingMsg.appendTo( opts.contentSelector ).show(); $( opts.navSelector ).hide(); // increment the URL bit. e.g. /page/3/ opts.currPage++; debug('heading into ajax',path); // if we're dealing with a table we can't use DIVs box = $(opts.contentSelector).is('table') ? $('
') : $(''); frag = document.createDocumentFragment(); box.load( path.join( opts.currPage ) + ' ' + opts.itemSelector,null,loadCallback); } function loadCallback(){ // if we've hit the last page... if (props.isDone){ showDoneMsg(); return false; } else { // if it didn't return anything if (box.children().length == 0){ // fake an ajaxError so we can quit. $.event.trigger( "ajaxError", [{status:404}] ); } // use a documentFragment because it works when content is going into a table or UL while (box[0].firstChild){ frag.appendChild( box[0].firstChild ); } $(opts.contentSelector)[0].appendChild(frag); // fadeout currently makes the 'd text ugly in IE6 props.loadingMsg.fadeOut('normal' ); // smooth scroll to ease in the new content if (opts.animate){ var scrollTo = $(window).scrollTop() + $('#infscr-loading').height() + opts.extraScrollPx + 'px'; $('html,body').animate({scrollTop: scrollTo}, 800,function(){ props.isDuringAjax = false; }); } $( opts.navSelector ).attr("href",path[0]+(opts.currPage+1)+path[1]); $( opts.navSelector ).show(); // pass in the new DOM element as context for the callback callback.call( box[0] ); /* $("img.lazy").lazyload({ effect: "fadeIn" }).removeClass("lazy"); */ $("img.lazy").lazyload({ event: "sporty" }); var timeout = setTimeout(function() { $("img.lazy").trigger("sporty") }, 1000); if (!opts.animate) props.isDuringAjax = false; // once the call is done, we can allow it again. } } // lets get started. $.browser.ie6 = $.browser.msie && $.browser.version < 7; var opts = $.extend({}, $.infinitescroll.defaults, options), props = $.infinitescroll, // shorthand box, frag; callback = callback || function(){}; if (!areSelectorsValid(opts)){ return false; } // we doing this on an overflow:auto div? props.container = opts.localMode ? this : document.documentElement; // contentSelector we'll use for our .load() opts.contentSelector = opts.contentSelector || this; // get the relative URL - everything past the domain name. var relurl = /(.*?\/\/).*?(\/.*)/, path = $(opts.nextSelector).attr('href'); if (!path) { debug('Navigation selector not found'); return; } // set the path to be a relative URL from root. path = determinePath(path); // reset scrollTop in case of page refresh: if (opts.localMode) $(props.container)[0].scrollTop = 0; // distance from nav links to bottom // computed as: height of the document + top offset of container - top offset of nav link props.pixelsFromNavToBottom = getDocumentHeight() + (props.container == document.documentElement ? 0 : $(props.container).offset().top )- $(opts.navSelector).offset().top; // define loading msg props.loadingMsg = $('