/****************************************************************************************
This software is the confidential and proprietary information of EES. ("Confidential Information"). You shall not disclose such Confidential Information and shall use it only in accordance with the terms of the license agreement you entered into with EES.
DOC Site Scripts
VERSION 1.0
AUTHOR Eric Gmutza
DATE NAME DESCRIPTON
05/28/2010 Eric Gmutza Initial creation.
****************************************************************************************/
/* =EXTEND JQUERY / JQUERY PLUGINS
---------------------------------------------------------------------------------------*/
$.fn.unwrap = function() {
this.parent(':not(body)')
.each(function(){
$(this).replaceWith( this.childNodes );
});
return this;
};
/*!
// Infinite Scroll jQuery plugin
// copyright Paul Irish, licensed GPL & MIT
// version 1.5.100504
// home and docs: http://www.infinite-scroll.com
*/
;(function($){
$.fn.infinitescroll = function(options,callback){
// console log wrapper.
function debug(){
if (opts.debug) { window.console && console.log.call(console,arguments)}
}
// 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(.*?$)/).slice(1);
} else {
// page= is used in drupal too but second page is page=1 not page=2:
// thx Jerod Fritz, vladikoff
if (path.match(/^(.*?page=)1(\/.*|$)/)) {
path = path.match(/^(.*?page=)1(\/.*|$)/).slice(1);
return path;
}
debug('Sorry, we couldn\'t parse your Next (Previous Posts) URL. Verify your the css selector points to the correct A tag. If you still get this error: yell, scream, and kindly ask for help at infinite-scroll.com.');
props.isInvalidPage = true; //prevent it from running on this page.
}
return path;
}
// 'document' means the full document usually, but sometimes the content of the overflow'd div in local mode
function getDocumentHeight(){
// weird doubletouch of scrollheight because http://soulpass.com/2006/07/24/ie-and-scrollheight/
return opts.localMode ? ($(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');
} // 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/
props.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( props.currPage ) + ' ' + opts.itemSelector,null,loadCallback);
}
function loadCallback(){
// if we've hit the last page...
if (props.isDone){
showDoneMsg();
return false;
} else {
var children = box.children().get();
// if it didn't return anything
if (children.length == 0){
// fake an ajaxError so we can quit.
return $.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; });
}
// previously, we would pass in the new DOM element as context for the callback
// however we're now using a documentfragment, which doesnt havent parents or children,
// so the context is the contentContainer guy, and we pass in an array
// of the elements collected as the first argument.
callback.call( $(opts.contentSelector)[0], children );
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 = $('
'+opts.loadingText+'