/*
	Slimbox v1.314 - The ultimate lightweight Lightbox clone
	by Christophe Beyls (http://www.digitalia.be) - MIT-style license.
	Inspired by the original Lightbox v2 by Lokesh Dhakar.
	Extended by ncm.at
*/
var Lightbox = {

	init: function(options){
		this.options = Object.extend({
			resizeDuration: 400,
			resizeTransition: Fx.Transitions.sineInOut,
			initialWidth: 250,
			initialHeight: 250,
			animateCaption: true,
			printable: false
		}, options || {});

		this.parse();
		this.eventKeyDown = this.keyboardListener.bindAsEventListener(this);
		this.eventPosition = this.position.bind(this);

		this.overlay = new Element('div').setProperty('id', 'lbOverlay').injectInside(document.body);

		this.center = new Element('div').setProperty('id', 'lbCenter').setStyles({width: this.options.initialWidth+'px', height: this.options.initialHeight+'px', marginLeft: '-'+(this.options.initialWidth/2)+'px', display: 'none'}).injectInside(document.body);
		this.imagePrint = new Element('img').setProperty('id', 'lbImagePrint').injectInside(this.center);
		this.image = new Element('div').setProperty('id', 'lbImage').injectInside(this.center);
		this.iframe = new Element('iframe').setProperty('id', 'lbIframe').setProperty('frameBorder', 0).setProperty('scrolling', 'auto').injectInside(this.center);
		this.prevLink = new Element('a').setProperties({id: 'lbPrevLink', href: '#'}).setStyle('display', 'none').injectInside(this.image);
		this.nextLink = this.prevLink.clone().setProperty('id', 'lbNextLink').injectInside(this.image);
		this.prevLink.onclick = this.previous.bind(this);
		this.nextLink.onclick = this.next.bind(this);

		this.bottomContainer = new Element('div').setProperty('id', 'lbBottomContainer').setStyle('display', 'none').injectInside(document.body);
		this.bottom = new Element('div').setProperty('id', 'lbBottom').injectInside(this.bottomContainer);
		new Element('a').setProperties({id: 'lbCloseLink', href: '#'}).injectInside(this.bottom).onclick = this.overlay.onclick = this.close.bind(this);
		this.nextLink2 = new Element('a').setProperties({id: 'lbNextLink2', href: '#'}).injectInside(this.bottom);
		this.nextLink2.onclick = this.next.bind(this);
		this.prevLink2 = new Element('a').setProperties({id: 'lbPrevLink2', href: '#'}).injectInside(this.bottom);
		this.prevLink2.onclick = this.previous.bind(this);
		if(this.options.printable){
			this.printLink = new Element('a').setProperties({id: 'lbPrintLink', target: '_blank'}).injectInside(this.bottom);
		}
		if(typeof fotoalbum_settings != "undefined"){
                    
			if(fotoalbum_settings.sendable){
				this.sendLink = new Element('a').setProperties({id: 'lbSendLink', href: '#'}).injectInside(this.bottom);
				this.sendLink.onclick = this.send.bind(this);
			}
		}
                if(typeof cms_settings != "undefined"){
                    
			if(cms_settings.sendable){
				this.sendLink = new Element('a').setProperties({id: 'lbSendLink', href: '#'}).injectInside(this.bottom);
				this.sendLink.onclick = this.send_cms.bind(this);
			}
		}
		this.caption = new Element('div').setProperty('id', 'lbCaption').injectInside(this.bottom);
		//this.number = new Element('div').setProperty('id', 'lbNumber').injectInside(this.bottom);
		new Element('div').setStyle('clear', 'both').injectInside(this.bottom);
		this.sendContainer = new Element('div').setProperty('id','lbSendContainer').injectInside(this.bottom);
		this.sendContainerSlider = new Fx.Slide(this.sendContainer, {duration: 500, transition:Fx.Transitions.Bounce.easeOut});

		var nextEffect = this.nextEffect.bind(this);
		this.fx = {
			overlay: this.overlay.effect('opacity', {duration: 500}).hide(),
			resize: this.center.effects({duration: this.options.resizeDuration, transition: this.options.resizeTransition, onComplete: nextEffect}),
			image: this.image.effect('opacity', {duration: 500, onComplete: nextEffect}),
			iframe: this.iframe.effect('opacity', {duration: 500, onComplete: nextEffect}),
			bottom: this.bottom.effect('margin-top', {duration: 400, onComplete: nextEffect})
		};

		this.preloadPrev = new Image();
		this.preloadNext = new Image();
	},
	parse: function(){
		this.anchors = [];
		$each(document.links, function(el){
			if (el.rel && (el.rel.test(/^lightbox/i) || el.rel.test(/^lightpopup/i))){
				el.onclick = this.click.pass(el, this);
				this.anchors.push(el);
			}
		}, this);
	},
	click: function(link){
		if (link.rel.length == 8) return this.show(link.href, link.title);

		var j, imageNum, images = [];
		this.anchors.each(function(el){
			if (el.rel == link.rel){
				if(el.name && el.name!=""){
					for (j = 0; j < images.length; j++) if(images[j][0] == el.name) break;
					if (j == images.length){
						images.push([el.name, el.title, el.rel, el.className.split('id_').join('')*1]);
						if (el.name == link.name) imageNum = j;
					}
				}
				else{
					for (j = 0; j < images.length; j++) if(images[j][0] == el.href) break;
					if (j == images.length){
						images.push([el.href, el.title, el.rel, el.className.split('id_').join('')*1]);
						if (el.href == link.href) imageNum = j;
					}
				}
			}
		}, this);
		return this.open(images, imageNum);
	},
	send:function(){
		if(typeof fotoalbum_settings != "undefined"){
			this.isSending = true;
			getsrc(fotoalbum_settings['toolpath']+'?action=send_foto&foto_id=' + this.images[this.activeImage][3] + '&album_id=' + fotoalbum_settings['album_id'] + '&cc=1&lang='+fotoalbum_settings['language'],'lbSendContainer',null,this.sendContainerOnLoad.bind(this));
		}
		return false;
	},
        send_cms:function(){
		if(typeof cms_settings != "undefined"){
			this.isSending = true;
			getsrc('/cms/?action=send_foto&lang='+cms_settings['language'],'lbSendContainer',null,this.sendContainerOnLoad.bind(this));
		}
		return false;
	},
	sendContainerOnLoad: function(ajaxObj){
		//this.sendContainer.setStyle('margin-top',this.sendContainer.getSize()['size']['y']*-1);
		//this.fx.send.start(0);
		this.sendContainerSlider.hide();
		this.sendContainerSlider.slideIn();
		if($E('#lbSendContainer form')){
			$E('#lbSendContainer form').addEvent('submit',(function(e){
				new Element('input',{'type':'hidden','name':'nohf','value':'1'}).injectInside($E('#lbSendContainer form table td'));
				postform($E('#lbSendContainer form').getProperty('action'),$E('#lbSendContainer form').getProperty('id'),'lbSendContainer',null,this.sendContainerOnLoad.bind(this));
				e.stop();
			}).bindWithEvent(this));
		}
	},

	show: function(url, title){
		return this.open([[url, title]], 0);
	},

	open: function(images, imageNum){
		this.images = images;
		this.position();
		this.setup(true);
		this.top = window.getScrollTop() + (window.getHeight() / 15);
		this.center.setStyles({top: this.top+'px', display: ''});
		this.fx.overlay.start(0.5);
		return this.changeImage(imageNum);
	},

	position: function(){
		var difw = (window.getSize()['size']['x']-$(document.body).getSize()['size']['x'])/(-2);
		if(difw>0){
			difw=0;
		}
		this.overlay.setStyles({
			'top': window.getScrollTop()+'px', 
			'height': window.getHeight()+'px',
			'margin-left': difw,
			'margin-right': difw,
			'padding-left': difw*-1,
			'padding-right': difw*-1
		});
	},

	setup: function(open){
		var elements = $A(document.getElementsByTagName('object'));
		elements.extend(document.getElementsByTagName(window.ie ? 'select' : 'embed'));
		elements.each(function(el){
			if (open) el.lbBackupStyle = el.style.visibility;
			el.style.visibility = open ? 'hidden' : el.lbBackupStyle;
		});
		var fn = open ? 'addEvent' : 'removeEvent';
		window[fn]('scroll', this.eventPosition)[fn]('resize', this.eventPosition);
		document[fn]('keydown', this.eventKeyDown);
		this.step = 0;
	},

	keyboardListener: function(event){
		if(!this.isSending){
			switch (event.keyCode){
				case 27: case 88: case 67: this.close(); break;
				case 37: case 80: this.previous(); break;	
				case 39: case 78: this.next();
			}
		}
	},

	previous: function(){
		return this.changeImage(this.activeImage-1);
	},

	next: function(){
		return this.changeImage(this.activeImage+1);
	},

	changeImage: function(imageNum){
		if (this.step || (imageNum < 0) || (imageNum >= this.images.length)) return false;
		this.step = 1;
		this.activeImage = imageNum;
		this.sendContainerSlider.hide();
		this.isSending = false;
		this.center.style.backgroundColor = '';
		this.bottomContainer.style.display = this.prevLink.style.display = this.nextLink.style.display = this.prevLink2.style.display = this.nextLink2.style.display = 'none';
		this.fx.image.hide();
		this.fx.iframe.hide();
		this.center.className = 'lbLoading';
		if(!this.images[imageNum][2].test(/^lightpopup/i)){
			this.preload = new Image();
			this.preload.onload = this.nextEffect.bind(this);
			this.preload.src = this.images[imageNum][0];
		}
		else{
			this.nextEffect();
			this.iframe.src = this.images[this.activeImage][0];
		}
		return false;
	},

	nextEffect: function(){
		switch (this.step++){
		case 1:
			this.center.className = '';
			if(this.images[this.activeImage][2].test(/^lightpopup/i)){
				this.image.style.display = 'none';
				this.imagePrint.style.display = 'none';
				if(this.options.printable){
					this.printLink.style.display = 'none';
				}
				if(this.sendLink){
					this.sendLink.style.display = 'none';
				}
				this.iframe.style.display = 'block';				
				zws = this.images[this.activeImage][2];
				this.ifw = zws.substring(zws.indexOf('[')+1,zws.indexOf(']')).split(',')[0]*1;
				this.ifh = zws.substring(zws.indexOf('[')+1,zws.indexOf(']')).split(',')[1]*1;
				this.iframe.style.width = this.ifw+"px";
				this.iframe.style.height = this.ifh+"px";
				this.caption.setHTML(this.images[this.activeImage][1] || '');
				this.bottom.style.width = this.ifw+"px";
				if (this.center.clientHeight != this.ifh+20){
					this.fx.resize.start({height: this.ifh+20});
					break;
				}
			}
			else{
				this.image.style.display = 'block';
				this.iframe.style.display = 'none';
				this.image.style.backgroundImage = 'url('+this.images[this.activeImage][0]+')';
				this.imagePrint.src = this.images[this.activeImage][0];
				if(this.options.printable){
					this.printLink.href = this.images[this.activeImage][0].replace('/images/','/images/print.php?img=');
				}
				this.image.style.width = this.bottom.style.width = this.preload.width+'px';
				this.image.style.height = this.prevLink.style.height = this.nextLink.style.height = this.preload.height+'px';
				this.caption.setHTML(this.images[this.activeImage][1] || '');
				//this.number.setHTML((this.images.length == 1) ? '' : 'Image '+(this.activeImage+1)+' of '+this.images.length);
	
				if (this.activeImage) this.preloadPrev.src = this.images[this.activeImage-1][0];
				if (this.activeImage != (this.images.length - 1)) this.preloadNext.src = this.images[this.activeImage+1][0];
				if (this.center.clientHeight != this.image.offsetHeight){
					this.fx.resize.start({height: this.image.offsetHeight});
					break;
				}
			}
			this.step++;
		case 2:
			if(this.images[this.activeImage][2].test(/^lightpopup/i)){
				if (this.center.clientWidth != this.ifw+20){
					this.fx.resize.start({width: this.ifw+20, marginLeft: -(this.ifw+20)/2});
					break;
				}
			}
			else{
				if (this.center.clientWidth != this.image.offsetWidth){
					this.fx.resize.start({width: this.image.offsetWidth, marginLeft: -this.image.offsetWidth/2});
					break;
				}
			}
			this.step++;
		case 3:
			if(this.images[this.activeImage][2].test(/^lightpopup/i)){
				this.bottomContainer.setStyles({top: (this.top + this.center.clientHeight)+'px', height: '0px', marginLeft: this.center.style.marginLeft, display: '', width: this.ifw+20});
				this.fx.iframe.start(1);
			}
			else{
				this.bottomContainer.setStyles({top: (this.top + this.center.clientHeight)+'px', height: '0px', marginLeft: this.center.style.marginLeft, display: '', width: this.center.clientWidth});
				this.fx.image.start(1);
			}
			if (this.activeImage) this.prevLink2.style.display = '';
			if (this.activeImage != (this.images.length - 1)) this.nextLink2.style.display = '';
			break;
		case 4:
			this.center.style.backgroundColor = '#000';
			if (this.options.animateCaption){
				this.fx.bottom.set(-this.bottom.offsetHeight);
				this.bottomContainer.style.height = '';
				this.fx.bottom.start(0);
				break;
			}
			this.bottomContainer.style.height = '';
		case 5:
			if (this.activeImage) this.prevLink.style.display = '';
			if (this.activeImage != (this.images.length - 1)) this.nextLink.style.display = '';
			this.step = 0;
		}
	},

	close: function(){
		if (this.step < 0) return false;
		this.step = -1;
		this.iframe.src = "";
		if (this.preload){
			this.preload.onload = Class.empty;
			this.preload = null;
		}
		for (var f in this.fx) this.fx[f].stop();
		this.center.style.display = this.bottomContainer.style.display = 'none';
		this.sendContainerSlider.hide();
		this.isSending = false;
		this.fx.overlay.chain(this.setup.pass(false, this)).start(0);
		(function(){
			this.overlay.setStyles({
				'height': 'auto',
				'margin-left': 0,
				'margin-right': 0,
				'padding-left': 0,
				'padding-right': 0
			});
		}).bind(this).delay(500);
		return false;
	}
};

window.addEvent('domready', Lightbox.init.bind(Lightbox));