/**
 * jQuery (a)Slideshow plugin
 *
 * Copyright (c) 2009 Anton Shevchuk
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * @author 	Anton Shevchuk AntonShevchuk@gmail.com
 * @version 0.7.1
 */
;(function($){
	defaults={
		width:320,
		height:240,
		index:0,
		time:3000,
		history:false,
		title:true,
		titleshow:false,
		callback:null,
		panel:true,
		play:false,
		loop:true,
		effect:'fade',
		effecttime:1000,
		filter:true,
		nextclick:false,
		playclick:false,
		playhover:false,
		playhoverr:false,
		playframe:true,
		loadframe:true,
		fullscreen:false,
		imgresize:false,
		imgzoom:true,
		imgcenter:true,
		imgajax:true,
		imglink:true,
		linkajax:false,
		help:'Plugin homepage: <a href="http://slideshow.hohli.com">(a)Slideshow</a><br/>'+'Author homepage: <a href="http://anton.shevchuk.name">Anton Shevchuk</a>',
		controls:{
			'hide':true,
			'first':true,
			'prev':true,
			'play':true,
			'next':true,
			'last':true,
			'help':true,
			'counter':true
		}
};

$.fn.slideshow=function(p){
	var q=this;
	this.each(function(){
		var o=$(this);
		this.playId=null;
		this.playFlag=false;
		this.playFrame=false;
		this.goToFlag=false;
		this.length=0;
		this.inited=new Array();
		this.titles=new Array();
		this.build=function(){
			var a=this;
			o.wrapInner('<div class="slideshow"><div class="slideshow-content"></div></div>');
			o=o.find('.slideshow');
			if(this.options.filter){
				o.find('.slideshow-content > br').remove();
				o.find('.slideshow-content > p:empty').remove();
				o.find('.slideshow-content > div:empty').remove()
			}
			if(this.options.fullscreen){
				$('body').css({overflow:'hidden',padding:0});
				this.options.width=$(window).width();
				this.options.height=($(window).height()>$(document).height())?$(window).height():$(document).height();
				o.addClass('slideshow-fullscreen')
			}
			this.length=o.find('.slideshow-content > *').length;
			if(this.options.title){
				o.prepend('<div class="slideshow-label-place"><div class="slideshow-label slideshow-opacity"></div></div>');
				if(!this.options.titleshow){
					o.find('.slideshow-label-place').hover(function(){
							$(this).find('.slideshow-label').fadeIn()
						}, function(){
							$(this).find('.slideshow-label').fadeOut()
						}
					);
					o.find('.slideshow-label').hide()
				}
				o.find('.slideshow-label-place').css('width',this.options.width)
			}
			if(this.options.panel){
				o.append('<div class="slideshow-panel-place"><div class="slideshow-panel slideshow-opacity"></div></div>');
				panel=o.find('.slideshow-panel');
				if(this.options.controls.first) panel.append('<a class="first button" href="#first">First</a>');
				if(this.options.controls.prev) panel.append('<a class="prev button"  href="#prev">Prev</a>');
				if(this.options.controls.play) panel.append('<a class="play button"  href="#play">Play</a>');
				if(this.options.controls.next) panel.append('<a class="next button"  href="#next">Next</a>');
				if(this.options.controls.last) panel.append('<a class="last button"  href="#last">Last</a>');
				if(this.options.controls.help){
					panel.append('<a class="help button"  href="#help">Help</a>');
					panel.prepend('<div class="slideshow-help">'+this.options.help+'</div>')
			}
			if(this.options.controls.counter){
				panel.append('<span class="counter">'+(this.options.index+1)+' / '+this.length+'</span>')
			}
			if(this.options.controls.hide){
				o.find('.slideshow-panel-place').hover(function(){
						$(this).find('.slideshow-panel').fadeIn()
					}, function(){
						$(this).find('.slideshow-panel').fadeOut()
					}
				);
				panel.hide()
			}
			o.find('.slideshow-panel-place').css('width',this.options.width)
		}
		o.css({width:this.options.width,height:this.options.height});
		var b=o.find('.slideshow-content');
		b.css({width:this.options.width,height:this.options.height});
		if(this.options.playframe){
			this.playFrame=true;
			o.append('<div class="slideshow-shadow slideshow-opacity slideshow-frame"><div></div></div>')
		}
		if(this.options.loadframe){
			o.append('<div class="slideshow-shadow slideshow-opacity slideshow-load"><div></div></div>')
		}
		o.find('.slideshow-shadow').css({width:this.options.width,height:this.options.height});
		this.events();
		o.find('.slideshow-content > *').each(function(){$(this).wrap('<div class="slideshow-slide"></div>')});
		if(this.options.play){
			this.play()
		}
		this.init(this.options.index);
		o.find('.slideshow-slide:eq('+this.options.index+')').show();
		this._label();
		if(this.options.history){
			setInterval(function(){a._check()},300)
		}
		return true
	};
	this.init=function(b){
		for(var i=0,loopCnt=this.inited.length; i<loopCnt; i++){
			if(this.inited[i]===b) {return true}
		}
		this.inited.push(b);
		slide=o.find('.slideshow-slide:eq('+b+')');
		var c=this;
		var d='';
		var e=false;
		var f=slide.contents().attr('name');
		if(f!=''){
			var g=new RegExp("^((https?|ftp):\/\/)","i");
			if(g.test(f)){e=f}
		}
		if(slide.contents().is('a')){
			var h=slide.contents().attr('href');
			var j=document.domain;
			j=j.replace(/\./i,"\.");
			var k=new RegExp("\.(png|gif|jpg|jpeg|svg)$","i");
			var l=new RegExp("^((https?:\/\/"+j+")|(?!http:\/\/))","i");
			d=slide.contents().attr('title');
			if(d.length==0) d=slide.contents().html();
			d=d.replace(/\"/ig,"\'");
			if( this.options.imgajax && k.test(h) ){
				var m=new Image();
				m.alt=d;
				this._load($(m),h,b);
				slide.contents().replaceWith(m)
			} else if(this.options.linkajax && l.test(h) ) {
				$.get(h,function(a){ 
					c.goToSlide(b);
					slide.contents().replaceWith('<div>'+a+'</div>')
					}
				)
			} else {
				this.goToSlide(b)
			}
		} else {
			if( slide.contents().is("img") ) {
				
				if($.browser.msie) {
					var m=new Image();
					m.alt=slide.contents().attr("alt");
					this._load($(m),slide.contents().attr("src"),b);
					slide.contents().replaceWith(m)
				} else {
					this._load(slide.contents(),slide.contents().attr("src"),b)
				}
			} else {
				this.goToSlide(b)
			}
			if(slide.contents().attr('alt')) {
				d=slide.contents().attr('alt')
			} else if(slide.contents().attr('title')) {
				d=slide.contents().attr('title')
			} else if(slide.find('label:first').length>0) {
				slide.find('label:first').hide();
				d=slide.find('label:first').html()
			}
		}
		if(e) d='<a href="'+e+'" title="'+d+'">'+d+'</a>';
		this.titles[b]=d;
		if(this.options.imglink&&e){
			$(slide).css({cursor:'pointer'}).click(function(){document.location=e;return false})
		}
		if(this.options.playclick) $(slide).css({cursor:'pointer'}).click(function(){if(c.playId){c.stop()}else{c.play()}return false});
		return false
	};
	this._load=function(a,b,c){
			var d=o.find('.slideshow-load').show();
			var e=this;
			a.load(function(){
				e._zoom(a);
				e._resize(a);
				e._center(a);
				e.goToSlide(c);
				d.hide()
			}).error(function(){
				d.hide()
			}).attr('src',b);
			if(a.get(0).complete) {
				e._zoom(a);
				e._resize(a);
				e._center(a);
				e.goToSlide(c);
				d.hide()
			}
			return a
	};
	this._resize=function(a){
			if(!this.options.imgresize&&!this.options.fullscreen) return false;
			a.get(0).width=this.options.width;
			a.get(0).height=this.options.height;
			a.css({width:this.options.width,height:this.options.height});
			return a
	};
	this._zoom=function(a){
		if(!this.options.imgzoom) return false;
		var b=a.get(0).width;
		var c=a.get(0).height;
		var d=this.options.width/b;
		var e=this.options.height/c;
		var K=(e>d)?e:d;
		b=b*K;
		c=c*K;
		a.css({width:b,height:c});
		a.get(0).width=b;
		a.get(0).height=c;
		return a
	};
	this._center=function(a){
		if(!this.options.imgcenter)return false;
		var b=a.get(0).width?a.get(0).width:a.get(0).offsetWidth;
		var c=a.get(0).height?a.get(0).height:a.get(0).offsetHeight;
		var d=0;
		var e=0;
		if(b!=this.options.width){
			d=(Math.ceil((this.options.width-b)/2))+'px'
		}
		if(c!=this.options.height){e=(Math.ceil((this.options.height-c)/2))+'px'}
		a.css({left:d,top:e,position:'relative'});
		return a
	};
	this.events=function(){
		var a=this;
		if(a.options.nextclick) o.find('.slideshow-content').click(function(){a.stop();a.next();return false});
		if(this.options.controls.first) o.find('a.first').click(function(){a.stop();a.goToSlide(0);return false});
		if(this.options.controls.prev) o.find('a.prev').click(function(){a.stop();a.prev();return false});
		if(this.options.controls.play) o.find('a.play').click(function(){if(a.playId){a.stop()}else{a.play()}return false});
		if(this.options.controls.next) o.find('a.next').click(function(){a.stop();a.next();return false});
		if(this.options.controls.last)o.find('a.last').click(function(){a.stop();a.goToSlide(a.length-1);return false});
		if(this.options.controls.help)o.find('a.help').click(function(){a.stop();o.find('.slideshow-help').slideToggle();return false});
		if(this.options.playframe) o.find('.slideshow-frame').click(function(){o.find('.slideshow-frame').remove();if(a.options.playclick)setTimeout(function(){a.play()},a.options.time);return false});
		if(this.options.playhover) o.hover(function(){if(!a.playId){a.play()}},function(){if(a.playId){a.stop()}});
		if(this.options.playhoverr) o.hover(function(){if(a.playId){a.stop()}},function(){if(!a.playId){a.play()}})
	};
	this._label=function(){
		var a=this.getTitle();
		if(this.options.callback){
			this.options.callback(this.options.index,a)
		}
		if(!this.options.title) return false;
		o.find('.slideshow-label').html(a)
	};
	this._hash=function(){
		if(this.options.history){document.location.hash='slide-'+(this.options.index+1)}
	};
	this._check=function(){
		if(this.goToFlag){return false}
		var a=document.location.hash;
		a=a.length ? a.substr(1):'';
		if(a.length==0){this.goToSlide(0)}
		else{
			var b=new RegExp('slide-([0-9]+)','i');
			if(!b.test(a)){return false}
			var c=b.exec(a);
			if(c){
				c=parseInt(c[1])-1;
				if(c>=0&&c<this.length&&c!=this.options.index){
					if(this.playFrame){
						$(this).find('.slideshow-frame').remove()
					}
					this.stop();
					this.goToSlide(c)
				}
			}
		}
	};
	this.getTitle=function(){return this.titles[this.options.index]};
	this.prev=function(){
		if(this.options.index==0){i=(this.length-1)}
		else{i=this.options.index-1}
		this.goToSlide(i)
	};
	this.play=function(){
		var a=this;
		this.playFlag=true;
		this.playId=setTimeout(function(){a.next()},this.options.time);
		o.find('a.play').addClass('stop')
	};
	this._play=function(){
		var a=this;
		if(this.options.index==(this.length-1)){
			this.stop();
			if(this.options.loop){
				this.play()
			}
			return false
		}
		this.playId = setTimeout(function(){a.next()},this.options.time);
		return true
	};
	this.stop = function(){
		this.playFlag=false;
		o.find('a.play').removeClass('stop');
		clearTimeout(this.playId);
		this.playId=null
	};
	this.next=function(){
		if(this.options.index==(this.length-1)){i=0}
		else{i=this.options.index+1}
		this.goToSlide(i)
	};
	this.goToSlide=function(n){
		switch(true){
			case(this.options.index==n) : case(!this.init(n,true)) : return false;
			default:
				this.goToFlag = true;
				this._goToSlide(n);
				return true
		}
	};

	this._goToSlide=function(n) {
			var a=o.find('.slideshow-content > *:eq('+n+')');
			var b=o.find('.slideshow-content > *:eq('+this.options.index+')');
			b.css({zIndex:0});
			a.css({zIndex:1,top:0,left:0,opacity:1,width:this.options.width,height:this.options.height});
			this.options.index=n;
			if(this.options.effect=='random'){
				var r=Math.random();
				r=Math.floor(r*12)
			}
			else{r=-1} switch(true) {
				case(r==0||this.options.effect=='scrollUp') : b.css({width:'100%'});
				a.css({top:0,height:0});
				prevAni={height:0,top:this.options.height};
				break;
				case(r==1||this.options.effect=='scrollDown'):b.css({width:'100%'});
				a.css({top:this.options.height,height:0});
				prevAni={height:0,top:0};
				break;
				case(r==2||this.options.effect=='scrollRight'):b.css({right:0,left:'',height:'100%'});
				a.css({right:'',left:0,height:'100%',width:'0%'});
				prevAni={width:0};
				break;
				case(r==3||this.options.effect=='scrollLeft'):b.css({right:'',left:0,height:'100%'});
				a.css({right:0,left:'',height:'100%',width:'0%'});
				prevAni={width:0};
				break;
				case(r==4||this.options.effect=='growX'):a.css({zIndex:2,opacity:1,left:this.options.width/2,width:'0%',height:'100%'});
				prevAni={opacity:0.8};
				break;
				case(r==5||this.options.effect=='growY'):a.css({opacity:1,top:this.options.height/2,width:'100%',height:'0%'});prevAni={opacity:0.8};break;case(r==6||this.options.effect=='zoom'):a.css({width:0,height:0,top:this.options.height/2,left:this.options.width/2});prevAni={width:0,height:0,top:this.options.height/2,left:this.options.width/2};break;case(r==7||this.options.effect=='zoomFade'):a.css({zIndex:1,opacity:0,width:0,height:0,top:this.options.height/2,left:this.options.width/2});prevAni={opacity:0,width:0,height:0,top:this.options.height/2,left:this.options.width/2};break;case(r==8||this.options.effect=='zoomTL'):a.css({zIndex:1,opacity:0,width:this.options.width/2,height:this.options.height/2,top:0,left:0});prevAni={opacity:0,width:0,height:0,top:this.options.height,left:this.options.width};break;
				case(r==9||this.options.effect=='zoomBR'):a.css({zIndex:1,opacity:0,width:this.options.width/2,height:this.options.height/2,top:this.options.height/2,left:this.options.width/2});prevAni={opacity:0,width:0,height:0,top:0,left:0};break;
				case(r==10 || this.options.effect=='fade') : default : b.css({zIndex:0,opacity:1});
				a.css({zIndex:1,opacity:0});
				prevAni={opacity:0};
				break
			}
			var c=this;
			b.animate(prevAni,this.options.effecttime);
			a.show().animate({top:0,left:0,opacity:1,width:this.options.width,height:this.options.height},this.options.effecttime,function(){
				b.hide();
				if(c.playFlag) c._play();
				c._label();
				c._counter();
				c._hash();
				c.goToFlag=false
			})
		};
	this._counter=function(){
			if(this.options.controls.counter) o.find('.slideshow-panel span.counter').html((this.options.index+1)+' / '+this.length)
		};
	this.options=$.extend({},defaults,p);
	if(typeof(p)!='undefined') {
		if(typeof(p.controls)!='undefined') this.options.controls=$.extend({},defaults.controls,p.controls)
	}
	this.build();
	o.show();
	return o
});

	q.playSlide=function(){q.each(function(){this.play()})};
	q.stopSlide=function(){q.each(function(){this.stop()})};
	q.nextSlide=function(){q.each(function(){this.next()})};
	q.prevSlide=function(){q.each(function(){this.prev()})};
	q.getTitle=function(){q.each(function(){this.getTitle()})};
	q.goToSlide=function(n){q.each(function(){this.goToSlide(n)})};
	return this
}})(jQuery);