jquery.jcarousel-pagination.min.js

/*! jCarousel - v0.3.0 - 2014-01-09
* http://sorgalla.com/jcarousel
* Copyright (c) 2014 Jan Sorgalla; Licensed MIT */
(function(t){"use strict";t.jCarousel.plugin("jcarouselPagination",{_options:{perPage:null,item:function(t){return'<a href="#'+t+'">'+t+"</a>"},event:"click",method:"scroll"},_pages:{},_items:{},_currentPage:null,_init:function(){this.onDestroy=t.proxy(function(){this._destroy(),this.carousel().one("jcarousel:createend",t.proxy(this._create,this))},this),this.onReload=t.proxy(this._reload,this),this.onScroll=t.proxy(this._update,this)},_create:function(){this.carousel().one("jcarousel:destroy",this.onDestroy).on("jcarousel:reloadend",this.onReload).on("jcarousel:scrollend",this.onScroll),this._reload()},_destroy:function(){this._clear(),this.carousel().off("jcarousel:destroy",this.onDestroy).off("jcarousel:reloadend",this.onReload).off("jcarousel:scrollend",this.onScroll)},_reload:function(){var i=this.options("perPage");if(this._pages={},this._items={},t.isFunction(i)&&(i=i.call(this)),null==i)this._pages=this._calculatePages();else for(var s,e=parseInt(i,10)||0,r=this.carousel().jcarousel("items"),n=1,o=0;;){if(s=r.eq(o++),0===s.length)break;this._pages[n]=this._pages[n]?this._pages[n].add(s):s,0===o%e&&n++}this._clear();var l=this,a=this.carousel().data("jcarousel"),h=this._element,u=this.options("item");t.each(this._pages,function(i,s){var e=l._items[i]=t(u.call(l,i,s));e.on(l.options("event")+".jcarouselpagination",t.proxy(function(){var t=s.eq(0);if(a.circular){var e=a.index(a.target()),r=a.index(t);parseFloat(i)>parseFloat(l._currentPage)?e>r&&(t="+="+(a.items().length-e+r)):r>e&&(t="-="+(e+(a.items().length-r)))}a[this.options("method")](t)},l)),h.append(e)}),this._update()},_update:function(){var i,s=this.carousel().jcarousel("target");t.each(this._pages,function(t,e){return e.each(function(){return s.is(this)?(i=t,!1):void 0}),i?!1:void 0}),this._currentPage!==i&&(this._trigger("inactive",this._items[this._currentPage]),this._trigger("active",this._items[i])),this._currentPage=i},items:function(){return this._items},_clear:function(){this._element.empty(),this._currentPage=null},_calculatePages:function(){for(var t,i=this.carousel().data("jcarousel"),s=i.items(),e=i.clipping(),r=0,n=0,o=1,l={};;){if(t=s.eq(n++),0===t.length)break;l[o]=l[o]?l[o].add(t):t,r+=i.dimension(t),r>=e&&(o++,r=0)}return l}})})(jQuery);