/*
crossSlide v1.2
    
By Chris Coyier: http://css-tricks.com
with major improvements by Doug Neiner: http://pixelgraphics.us/
based on work by Remy Sharp: http://jqueryfordesigners.com/

To use the navigationFormatter function, you must have a function that
accepts two paramaters, and returns a string of HTML text.
	
index = integer index (1 based);
panel = jQuery wrapped LI item this tab references
@return = Must return a string of HTML/Text
	
navigationFormatter: function(index, panel){
    return index + " Panel"; // This would have each tab with the text 'X Panel' where X = index
}
*/

(function($){
    $.crossSlide = function(el, options){
        var base = this;

        base.$el = $(el);
        base.el = el; 

        base.currentPage = 1;
        base.timer = null;
        base.playing = false;

        base.$el.data("crossSlide", base);

        base.init = function(){
        base.options = $.extend({},$.crossSlide.defaults, options);

        base.$wrapper = base.$el.find('> div').css('overflow', 'hidden');
        base.$slider  = base.$wrapper.find('> ul');
        base.$items   = base.$slider.find('> li');
        base.$single  = base.$items.filter(':first');

        if(base.options.buildNavigation) base.buildNavigation();

        base.singleWidth = base.$single.outerWidth();
        base.pages = base.$items.length;

        base.$items.filter(':first').before(base.$items.filter(':last').clone().addClass('cloned'));
        base.$items.filter(':last' ).after(base.$items.filter(':first').clone().addClass('cloned'));

        base.$items = base.$slider.find('> li');

        //
        // Navigáció: előre, hátra
        //
        base.buildNextBackButtons();

        // Ha automatikus lej?tsz?si funkci?t tartalmaz, akkor inicializ?lja a be?ll?t?sokat
        if(base.options.autoPlay) {
            base.playing = !base.options.startStopped;
            base.buildAutoPlay();
        };

        // Ha pauseOnHover akkor hover effectet adunk hozz?
        if(base.options.pauseOnHover) {
            base.$el.hover(function(){
                base.clearTimer();
            }, function(){
                base.startStop(base.playing);
            });
        }

        if((base.options.hashTags == true && !base.gotoHash()) || base.options.hashTags == false){
            base.setCurrentPage(1);
        };
    };

    base.gotoPage = function(page, autoplay){
        if(autoplay !== true) autoplay = false;
        if(!autoplay) base.startStop(false);

        if(typeof(page) == "undefined" || page == null) {
            page = 1;
            base.setCurrentPage(1);
        };

        if(page > base.pages + 1) page = base.pages;
        if(page < 0 ) page = 1;

        var dir = page < base.currentPage ? -1 : 1,
        n = Math.abs(base.currentPage - page),
        left = base.singleWidth * dir * n;

        base.$wrapper.filter(':not(:animated)').animate({
            scrollLeft : '+=' + left
        }, base.options.animationTime, base.options.easing, function () {
            if (page == 0) {
                base.$wrapper.scrollLeft(base.singleWidth * base.pages);
                page = base.pages;
            } else if (page > base.pages) {
                base.$wrapper.scrollLeft(base.singleWidth);
                // vissza a kezdo poz?ci?ba
                page = 1;
            };
            base.setCurrentPage(page);
        });
    };

    base.setCurrentPage = function(page, move){
        // Meghat?rozott vizu?lis
        if(base.options.buildNavigation){
            base.$nav.find('.cur').removeClass('cur');
            $(base.$navLinks[page - 1]).addClass('cur');	
        };

        // Egyetlen v?ltoz?s, balra, ha mozg?s nem egyenlo 0
        if(move !== false) base.$wrapper.scrollLeft(base.singleWidth * page);
        base.currentPage = page;
    };

    base.goForward = function(autoplay){
        if(autoplay !== true) autoplay = false;
        base.gotoPage(base.currentPage + 1, autoplay);
    };

    base.goBack = function(){
        base.gotoPage(base.currentPage - 1);
    };

    // Ez a m?dszer megpr?b?lja megtal?lni a hasht, hogy a telep?l?sek panel-X
    // Ha tal?lt, akkor megpr?b?lja megtal?lni a megfelelo elemet
    // Ha tal?lnak is, akkor ez az elem kezd l?that?ban
    base.gotoHash = function(){
        if(/^#?panel-\d+$/.test(window.location.hash)){
            var index = parseInt(window.location.hash.substr(7));
            var $item = base.$items.filter(':eq(' + index + ')');
            if($item.length != 0){
                base.setCurrentPage(index);
                return true;
            };
        };
        return false; // Az elem nem tal?lhat?
    };

    // Navig?ci?s linkek k?sz?t?se: sz?mos megjelen?s
    base.buildNavigation = function(){
        base.$nav = $("<div id='slide-nav'></div>").appendTo(base.$el);
        base.$items.each(function(i,el){
            var index = i + 1;
            var $a = $("<a href='#' class=''></a>");

            if( typeof(base.options.navigationFormatter) == "function"){
                $a.html(base.options.navigationFormatter(index, $(this)));
            } else {
                $a.text(index);
            }
            $a.click(function(e){
                base.gotoPage(index);
                if (base.options.hashTags)
                base.setHash('panel-' + index);
                e.preventDefault();
            });
            base.$nav.append($a);
        });
        base.$navLinks = base.$nav.find('> a');
    };

    // Navig?ci?s linkek k?sz?t?se: elore, h?tra gombok
    base.buildNextBackButtons = function(){
        var $forward = $('<a class="arrow forward">&gt;</a>'),
        $back    = $('<a class="arrow back">&lt;</a>');

        //
        $back.click(function(e){
            base.goBack();
            e.preventDefault();
        });

        $forward.click(function(e){
            base.goForward();
            e.preventDefault();
        });

        //
        base.$wrapper.after($back).after($forward);
    };

    // Navig?ci?s linkek k?sz?t?se: start, stop gombok
    base.buildAutoPlay = function(){
        base.$startStop = $("<a href='#' id='start-stop'></a>").html(base.playing ? base.options.stopText :  base.options.startText);
        base.$el.append(base.$startStop);            
        base.$startStop.click(function(e){
        base.startStop(!base.playing);
            e.preventDefault();
        });
        //
        base.startStop(base.playing);
    };
		
    // Start, Stop kezel?se
    // FALSE be?ll?t?sn?l stop, TRUE be?ll?t?sn?l start
    base.startStop = function(playing){
        if(playing !== true) playing = false; // alap?rtelmezett be?ll?t?s

        base.playing = playing;
			
        // Toggle: j?t?k ?s sz?veg
        if(base.options.autoPlay) base.$startStop.toggleClass("playing", playing).html( playing ? base.options.stopText : base.options.startText );

        if(playing){
            base.clearTimer();
            base.timer = window.setInterval(function(){
                base.goForward(true);
            }, base.options.delay);
        } else {
            base.clearTimer();
        };
    };

    base.clearTimer = function(){
    // Clear the timer only if it is set
        if(base.timer) window.clearInterval(base.timer);
    };

    // AJAXY jquery.history Plugin
    base.setHash = function ( hash ) {
        // hash ?r?sa
        if ( typeof window.location.hash !== 'undefined' ) {
            if ( window.location.hash !== hash ) {
                window.location.hash = hash;
            };
        } else if ( location.hash !== hash ) {
            location.hash = hash;
        };
        // K?sz
        return hash;
    };
    // <-- AJAXY k?d v?ge

    base.init();
};

/*
$.crossSlide.defaults = {
    easing: "swing",
    autoPlay: true,
    startStopped: false,
    delay: 3000,
    animationTime: 600,
    hashTags: true,
    buildNavigation: true,
    pauseOnHover: true,
    startText: "Start",
    stopText: "Stop",
    navigationFormatter: null
};
*/

$.fn.crossSlide = function(options){
    if(typeof(options) == "object"){
        return this.each(function(i){			
            (new $.crossSlide(this, options));
            options.hashTags = false;
	    });	
    } else if (typeof(options) == "number") {
        return this.each(function(i){
            var anySlide = $(this).data('crossSlide');
            if(anySlide){
                anySlide.gotoPage(options);
            }
        });
    }
};

})(jQuery);