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jquery.siteSlider.js
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jquery.siteSlider.js
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(function( $ ){
// $('#content-with-images').imagesLoaded( myFunction )
// execute a callback when all images inside a parent have loaded.
// needed because .load() doesn't work on cached images
// Useful for Masonry or Isotope, triggering dynamic layout
// after images have loaded:
// $('#content').imagesLoaded( function(){
// $('#content').masonry();
// });
// mit license. paul irish. 2010.
// webkit fix from Oren Solomianik. thx!
// callback function is passed the last image to load
// as an argument, and the collection as `this`
$.fn.imagesLoaded = function(callback) {
var elems = this.find('img'),
len = elems.length,
_this = this;
if ( !elems.length ) {
callback.call( this );
}
elems.bind('load',function(){
if (--len <= 0){
callback.call( _this );
}
}).each(function(){
// cached images don't fire load sometimes, so we reset src.
if (this.complete || this.complete === undefined){
var src = this.src;
// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
// data uri bypasses webkit log warning (thx doug jones)
this.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
this.src = src;
}
});
return this;
}
// SiteSlider
// MIT License. Copyright SalesCrunch, 2011
$.fn.siteSlider = function( settings ) {
var options = $.extend({}, {
expandImage: true,
width: 800,
height: 200,
auto: true,
autoInterval: 5,
slideTag: '.slide',
paginateTag: '#paginate'
}, settings);
options.el = this;
return this.each(function() {
$(this).hide();
_init(options);
$("img", this).imagesLoaded(function() {
$(options.el).show();
});
});
}
function _init(options) {
var $slides = $(options.slideTag)
, PADDING = 60;
// setup the paginator //
for(var i=0; i < $slides.length; i++) {
$($slides[i]).data('id', i);
if(i == 0) { continue; }
$(options.paginateTag).append("<a href='#' data-id="+i+" class='pager'>.</a>");
}
$('.pager').first().addClass('active');
// bind actions //
if(options.expandImage) {
$slides.find('img').bind('mouseover', options, _handleHovers);
$slides.find('img').bind('mouseout', options, _handleOut);
}
$('.nav').bind("click", options, _handleNav);
$('.pager').bind("click", options, _handlePage);
startAutoScroll(options);
// setup sizing //
options.el.width(options.width).height(options.height);
var $viewer = $('#slide-viewer').css('width', options.width-PADDING).height(options.height);
var slideWidth = $viewer.width()/2 - PADDING;
var numberOfSlides = $slides.length;
$('#slides').css('width', (slideWidth+PADDING) * numberOfSlides);
// slides sizing
$(options.slideTag).width(slideWidth).height(options.height - PADDING);
$('img', options.slideTag).height(options.height-PADDING);
// position nav
var navPos = (options.height / 2) - ($('.nav').innerHeight() / 2);
$('.nav').css('margin-top', navPos);
}
function startAutoScroll(opts) {
if(!opts.auto) { return; }
opts.runningInterval = setInterval(function() {
_handleNav({data: opts}, true);
}, opts.autoInterval * 1000);
}
function stopAutoScroll(opts) {
if(!opts.auto) { return; }
clearInterval(opts.runningInterval);
}
function _handleNav(e, auto) {
if(e.preventDefault) { e.preventDefault(); }
if(e.data.prevent) { return; }
var slideWidth = $($('.slide')[0]).innerWidth() + 20
, pos = parseInt($('#slides').css('margin-left'))
, max = $('#slides').width() - $('#slide-viewer').width()
, forward = ($(this).attr('id') == "next" || auto)
, $active = $('.pager.active')
, id = $active.data('id');
if(!auto) {
stopAutoScroll(e.data);
startAutoScroll(e.data);
}
if( pos == 0 && !forward ) {
// Don't do anything.
} else if( pos > 0 || (pos <= -max && (forward || auto)) ) {
e.data.prevent = true;
slideTo(0, e.data);
$active.removeClass('active');
$('.pager').first().addClass('active');
} else {
e.data.prevent = true;
$active.removeClass('active').siblings('[data-id="'+ (forward ? id+1 : id-1) +'"]').addClass('active');
slideTo(forward ? pos-slideWidth : pos+slideWidth, e.data);
}
}
function _handlePage(e) {
e.preventDefault();
if(e.data.prevent) { return; }
var slideWidth = $($('.slide')[0]).innerWidth() + 20
, pos = parseInt($('#slides').css('margin-left'))
, curr = $('.pager.active').removeClass('active').data('id')
, to = $(this).addClass('active').data('id');
stopAutoScroll(e.data);
startAutoScroll(e.data);
e.data.prevent = true;
slideTo(pos + ((curr - to) * slideWidth), e.data);
}
function _handleHovers(e) {
stopAutoScroll(e.data);
$(this).stop().animate({
'left': -$(this).parent().position().left + 30
});
}
function _handleOut(e) {
startAutoScroll(e.data);
$(this).stop().animate({ 'left': 0 });
}
function slideTo(pos, opts) {
$('#slides').animate({'margin-left': pos}, function() { opts.prevent = false });
}
})( jQuery );