/*
    This file is part of JonDesign's SmoothGallery v2.1beta1.

    JonDesign's SmoothGallery is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    JonDesign's SmoothGallery is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with JonDesign's SmoothGallery; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Main Developer: Jonathan Schemoul (JonDesign: http://www.jondesign.net/)
    Contributed code by:
    - Christian Ehret (bugfix)
	- Nitrix (bugfix)
	- Valerio from Mad4Milk for his great help with the carousel scrolling and many other things.
	- Archie Cowan for helping me find a bugfix on carousel inner width problem.
	- Tomocchino from #mootools for the preloader class
	Many thanks to:
	- The mootools team for the great mootools lib, and it's help and support throughout the project.
	- Harald Kirschner (digitarald: http://digitarald.de/) for all his great libs. Some used here as plugins.
*/

/* some quirks to circumvent broken stuff in mt1.2 */
function isBody(element){
	return (/^(?:body|html)$/i).test(element.tagName);
};
Element.implement({
	getPosition: function(relative){
		if (isBody(this)) return {x: 0, y: 0};
		var el = this, position = {x: 0, y: 0};
		while (el){
			position.x += el.offsetLeft;
			position.y += el.offsetTop;
			el = el.offsetParent;
		}
		var rpos = (relative) ? $(relative).getPosition() : {x: 0, y: 0};
		return {x: position.x - rpos.x, y: position.y - rpos.y};
	}
});

// declaring the class
var gallery = {
	Implements: [Events, Options],
	options: {
		showInfopane: true,
		fadeDuration: 500,
		delay: 9000,
		preloader: true,
		preloaderImage: true,
		preloaderErrorImage: true,
		/* Data retrieval */
		manualData: [],
		populateFrom: false,
		populateData: true,
		destroyAfterPopulate: true,
		elementSelector: 'div.imageElement',
		titleSelector: 'h3',
		subtitleSelector: 'p',
		linkSelector: 'a.open',
		imageSelector: 'img.full',
		thumbnailSelector: 'img.thumbnail',
		defaultTransition: 'fade',
		startingItem: 0,
		/* InfoPane options */
		slideInfoZoneOpacity: 0.9,
		slideInfoZoneSlide: true,
		slideInfoZoneSlideFrom: 'bottom',
		slideInfoZoneBottomDimension: '80px',
		slideInfoZoneRightDimension: '210px',
		/* Carousel options */
		carouselOpacity: 1,
		thumbHeight: 75,
		thumbWidth: 100,
		thumbSpacing: 10,
		thumbIdleOpacity: 0.2,
		showCarouselLabel: true,
		useThumbGenerator: false,
		thumbGenerator: 'resizer.php',
		activateCarouselScroller: true,
		carouselPreloader: true,
		textPreloadingCarousel: 'Loading...',
		/* CSS Classes */
		baseClass: 'jdGallery'
	},
	initialize: function(element, options) {
		this.setOptions(options);
		this.fireEvent('onInit');
		this.currentIter = 0;
		this.lastIter = 0;
		this.maxIter = 0;
		this.galleryElement = element;
		this.galleryData = this.options.manualData;
		this.galleryInit = 1;
		this.galleryElements = Array();
		this.thumbnailElements = Array();
		this.galleryElement.addClass(this.options.baseClass);
				
		this.populateFrom = element;
		if (this.options.populateFrom)
			this.populateFrom = this.options.populateFrom;		
		if (this.options.populateData)
			this.populateData();
		element.style.display="block";
		
		this.currentLink = new Element('a').addClass('open').setProperties({
			href: '#',
			title: ''
		}).inject(element);
		
		this.constructElements();
		this.loadingElement = new Element('div').addClass('loadingElement').inject(element);
		if (this.options.showInfopane) this.initInfoSlideshow();
		this.initCarousel();
		this.doSlideShow(1);
	},
	populateData: function() {
		currentArrayPlace = this.galleryData.length;
		options = this.options;
		var data = $A(this.galleryData);
		data.extend(this.populateGallery(this.populateFrom, currentArrayPlace));
		this.galleryData = data; 
		this.fireEvent('onPopulated');
	},
	populateGallery: function(element, startNumber) {
		var data = [];
		options = this.options;
		currentArrayPlace = startNumber;
		element.getElements(options.elementSelector).each(function(el) {
			elementDict = $H({
				image: el.getElement(options.imageSelector).getProperty('src'),
				number: currentArrayPlace,
				transition: this.options.defaultTransition
			});
			elementDict.extend({
				title: el.getElement(options.titleSelector).innerHTML,
				description: el.getElement(options.subtitleSelector).innerHTML
			});
			elementDict.extend({
				link: el.getElement(options.linkSelector).href||false,
				linkTitle: el.getElement(options.linkSelector).title||false,
				linkTarget: el.getElement(options.linkSelector).getProperty('target')||false,
				linkOnclick: el.getElement(options.linkSelector).getProperty('onclick')||false,
				linkStyle: el.getElement(options.linkSelector).getProperty('style')||false
			});
			if (!options.useThumbGenerator)
				elementDict.extend({
					thumbnail: el.getElement(options.thumbnailSelector).getProperty('src')
				});
			else if (options.useThumbGenerator)
				elementDict.extend({
					thumbnail: options.thumbGenerator + '?imgfile=' + elementDict.image + '&max_width=' + options.thumbWidth + '&max_height=' + options.thumbHeight
				});
			
			data.extend([elementDict]);
			currentArrayPlace++;
			if (this.options.destroyAfterPopulate)
				el.dispose();
		});
		return data;
	},
	constructElements: function() {
		el = this.galleryElement;
		this.maxIter = this.galleryData.length;
		var currentImg;
		for(i=0;i<this.galleryData.length;i++)
		{
			var currentImg = new Fx.Morph(
				new Element('div').addClass('slideElement').setStyles({
					'position':'absolute',
					'left':'0px',
					'right':'0px',
					'margin':'0px',
					'padding':'0px',
					'backgroundPosition':"center center",
					'opacity':'0'
				}).inject(el),
				{duration: this.options.fadeDuration}
			);
			if (this.options.preloader)
			{
				currentImg.source = this.galleryData[i].image;
				currentImg.loaded = false;
				currentImg.load = function(imageStyle, i) {
					if (!imageStyle.loaded)	{
						this.galleryData[i].imgloader = new Asset.image(imageStyle.source, {
		                            'onload'  : function(img, i){
													img.element.setStyle(
													'backgroundImage',
													"url('" + img.source + "')")
													img.loaded = true;
													img.width = this.galleryData[i].imgloader.width;
													img.height = this.galleryData[i].imgloader.height;
												}.pass([imageStyle, i], this)
						});
					}
				}.pass([currentImg, i], this);
			} else {
				currentImg.element.setStyle('backgroundImage',
									"url('" + this.galleryData[i].image + "')");
			}
			this.galleryElements[parseInt(i)] = currentImg;
		}
	},
	destroySlideShow: function(element) {
		var myClassName = element.className;
		var newElement = new Element('div').addClass('myClassName');
		element.parentNode.replaceChild(newElement, element);
	},
	startSlideShow: function() {
		this.fireEvent('onStart');
		this.loadingElement.style.display = "none";
		if (this.options.startingItem!=0){
			this.goTo(this.options.startingItem);
		}else{
			this.lastIter = this.maxIter - 1;
			this.currentIter = 0;
			this.galleryInit = 0;
			this.galleryElements[parseInt(this.currentIter)].set({opacity: 1});
			if (this.options.showInfopane)
				this.showInfoSlideShow.delay(1000, this);
			this.prepareTimer();
			this.makeLink(this.currentIter);
			
			var createLink = function(event) {
				event.stop();
				window.location.href = this.galleryData[this.currentIter].link;
			}
			this.galleryElement.addEvent('click', createLink.bind(this));
		}
	},
	nextItem: function() {
		this.fireEvent('onNextCalled');
		this.nextIter = this.currentIter+1;
		if (this.nextIter >= this.maxIter)
			this.nextIter = 0;
		this.galleryInit = 0;
		this.goTo(this.nextIter);
	},
	prevItem: function() {
		this.fireEvent('onPreviousCalled');
		this.nextIter = this.currentIter-1;
		if (this.nextIter <= -1)
			this.nextIter = this.maxIter - 1;
		this.galleryInit = 0;
		this.goTo(this.nextIter);
	},
	goTo: function(num) {
		this.clearTimer();
		if(this.options.preloader)
		{
			this.galleryElements[num].load();
			if (num==0)
				this.galleryElements[this.maxIter - 1].load();
			else
				this.galleryElements[num - 1].load();
			if (num==(this.maxIter - 1))
				this.galleryElements[0].load();
			else
				this.galleryElements[num + 1].load();
				
		}
		this.clearLink();
		if (this.options.showInfopane)
		{
			this.slideInfoZone.clearChain();
			this.hideInfoSlideShow().chain(this.changeItem.pass(num, this));
		} else
			this.currentChangeDelay = this.changeItem.delay(500, this, num);
		this.makeLink(num);
		this.prepareTimer();
	},
	changeItem: function(num) {
		this.fireEvent('onStartChanging');
		this.galleryInit = 0;
		if (this.currentIter != num)
		{
			for(i=0;i<this.maxIter;i++)
			{
				if ((i != this.currentIter)) this.galleryElements[i].set({opacity: 0});
			}
			gallery.Transitions[this.galleryData[num].transition].pass([
				this.galleryElements[this.currentIter],
				this.galleryElements[num],
				this.currentIter,
				num], this)();
			this.currentIter = num;
		}
		this.doSlideShow.bind(this)();
		this.fireEvent('onChanged');
	},
	clearTimer: function() {
		$clear(this.timer);
	},
	prepareTimer: function() {
		this.timer = this.nextItem.delay(this.options.delay, this);
	},
	doSlideShow: function(position) {
		if (this.galleryInit == 1)
		{
			imgPreloader = new Image();
			imgPreloader.onload=function(){
				this.startSlideShow.delay(10, this);
			}.bind(this);
			imgPreloader.src = this.galleryData[0].image;
			if(this.options.preloader)
				this.galleryElements[0].load();
		} else {
			if (this.options.showInfopane)
			{
				this.showInfoSlideShow();
			}
		}
	},
	createCarousel: function() {
		var carouselElement;
		var carouselContainerElement = new Element('div').addClass('carouselContainer').inject(this.galleryElement, 'after');
		this.carouselContainer = new Fx.Morph(carouselContainerElement, {transition: Fx.Transitions.Expo.easeOut});
		this.carouselContainer.normalHeight = carouselContainerElement.offsetHeight;
		this.carouselContainer.set({'opacity': this.options.carouselOpacity});
		this.carouselActive = false;

		carouselElement = new Element('div').addClass('carousel').inject(carouselContainerElement);
		this.carousel = new Fx.Morph(carouselElement);
		this.carouselElement = new Fx.Morph(carouselElement, {transition: Fx.Transitions.Expo.easeOut});
		this.carouselElement.normalHeight = carouselElement.offsetHeight;
		if (this.options.showCarouselLabel) {
			this.carouselLabelContainer = new Element('div').addClass('label-container').inject(carouselElement);
			this.carouselLabel = new Element('p').addClass('label').inject(this.carouselLabelContainer);
		}
		carouselWrapper = new Element('div').addClass('carouselWrapper').inject(carouselElement);
		this.carouselWrapper = new Fx.Morph(carouselWrapper, {transition: Fx.Transitions.Expo.easeOut});
		this.carouselWrapper.normalHeight = carouselWrapper.offsetHeight;
		this.carouselInner = new Element('div').addClass('carouselInner').inject(carouselWrapper);
		if (this.options.activateCarouselScroller)
		{
			this.carouselWrapper.scroller = new Scroller(carouselWrapper, {
				area: 100,
				velocity: 0.2
			})
			
			this.carouselWrapper.elementScroller = new Fx.Scroll(carouselWrapper, {
				duration: 400,
				onStart: this.carouselWrapper.scroller.stop.bind(this.carouselWrapper.scroller),
				onComplete: this.carouselWrapper.scroller.start.bind(this.carouselWrapper.scroller)
			});
		}
		this.showCarousel();
	},
	fillCarousel: function() {
		this.constructThumbnails();
		this.carouselInner.normalWidth = ((this.maxIter * (this.options.thumbWidth + this.options.thumbSpacing + 2))+this.options.thumbSpacing) + "px";
		this.carouselInner.style.width = this.carouselInner.normalWidth;
	},
	initCarousel: function () {
		this.createCarousel();
		this.fillCarousel();
		if (this.options.carouselPreloader)
			this.preloadThumbnails();
	},
	showCarousel: function () {
		this.fireEvent('onShowCarousel');
		this.carouselActive = true;
		this.carouselWrapper.scroller.start();
		this.fireEvent('onCarouselShown');
		this.carouselContainer.options.onComplete = null;
	},
	constructThumbnails: function () {
		element = this.carouselInner;
		for(i=0;i<this.galleryData.length;i++)
		{
			var currentImg = new Fx.Morph(new Element ('div').addClass("thumbnail").setStyles({
					backgroundImage: "url('" + this.galleryData[i].thumbnail + "')",
					backgroundPosition: "center center",
					backgroundRepeat: 'no-repeat',
					marginLeft: this.options.thumbSpacing + "px",
					width: this.options.thumbWidth + "px",
					height: this.options.thumbHeight + "px"
				}).inject(element), {duration: 200}).start({
					'opacity': this.options.thumbIdleOpacity
				});
			currentImg.element.addEvents({
				'mouseover': function (myself) {
					myself.cancel();
					myself.start({'opacity': 0.99});
					if (this.options.showCarouselLabel)
						$(this.carouselLabel).set('html', myself.relatedImage.title);
				}.pass(currentImg, this),
				'mouseout': function (myself) {
					myself.cancel();
					myself.start({'opacity': this.options.thumbIdleOpacity});
					if (this.options.showCarouselLabel)
						$(this.carouselLabel).set('html', this.galleryData[this.currentIter].title);
				}.pass(currentImg, this),
				'click': function (myself) {
					this.goTo(myself.relatedImage.number);
				}.pass(currentImg, this)
			});
			
			currentImg.relatedImage = this.galleryData[i];
			this.thumbnailElements[parseInt(i)] = currentImg;
		}
	},
	preloadThumbnails: function() {
		var thumbnails = [];
		for(i=0;i<this.galleryData.length;i++)
		{
			thumbnails[parseInt(i)] = this.galleryData[i].thumbnail;
		}
		this.thumbnailPreloader = new Preloader();
		this.thumbnailPreloader.load(thumbnails);
	},
	centerCarouselOn: function(num) {
		var carouselElement = this.thumbnailElements[num];
		var position = carouselElement.element.offsetLeft + (carouselElement.element.offsetWidth / 2);
		var carouselWidth = this.carouselWrapper.element.offsetWidth;
		var carouselInnerWidth = this.carouselInner.offsetWidth;
		var diffWidth = carouselWidth / 2;
		var scrollPos = position-diffWidth;
		this.carouselWrapper.elementScroller.start(scrollPos,0);

		for(i=0;i<this.galleryData.length;i++)
		{
			if(i!=num)
			{
				this.thumbnailElements[i].start({'opacity': this.options.thumbIdleOpacity});
			}
			else
			{
				this.thumbnailElements[i].start({'opacity': 1});
				if (this.options.showCarouselLabel)
					$(this.carouselLabel).set('html', this.galleryData[i].title);
			}
		}
	},
	initInfoSlideshow: function() {
		this.slideInfoZone = new Fx.Morph(new Element('div').addClass('slideInfoZone').inject($(this.galleryElement)));
		if (this.options.slideInfoZoneSlideFrom == 'bottom') {
			$(this.galleryElement).getElements('.slideInfoZone').addClass('slideInfoZoneBottom');
		}else{
			$(this.galleryElement).getElements('.slideInfoZone').addClass('slideInfoZoneRight');
		}			
		$(this.galleryElement).getElements('.slideInfoZone').set('opacity', this.options.slideInfoZoneOpacity);
		var slideInfoZoneTitle = new Element('h2').inject(this.slideInfoZone.element);
		var slideInfoZoneDescription = new Element('p').inject(this.slideInfoZone.element);
		if (this.options.slideInfoZoneSlideFrom == 'bottom') {
			this.slideInfoZone.normalHeight = this.options.slideInfoZoneBottomDimension;
			this.slideInfoZone.set({'height': 0});
		}else{
			this.slideInfoZone.normalWidth = this.options.slideInfoZoneRightDimension;
			this.slideInfoZone.set({'width': 0});
		}
	},
	changeInfoSlideShow: function()
	{
		this.hideInfoSlideShow.delay(10, this);
		this.showInfoSlideShow.delay(100, this);
	},
	showInfoSlideShow: function() {
		
		this.fireEvent('onShowInfopane');
		this.slideInfoZone.cancel();
		element = this.slideInfoZone.element;
		element.getElement('h2').set('html', this.galleryData[this.currentIter].title);
		element.getElement('p').set('html', this.galleryData[this.currentIter].description);
		
		if(this.options.slideInfoZoneSlide) {
			if (this.options.slideInfoZoneSlideFrom == 'bottom') {
				this.slideInfoZone.start({'height': [0, this.options.slideInfoZoneBottomDimension]});
			}else{
				this.slideInfoZone.start({'width': [0, this.options.slideInfoZoneRightDimension]});
			}
		}
		this.centerCarouselOn(this.currentIter);
		return this.slideInfoZone;
	},
	hideInfoSlideShow: function() {
		this.fireEvent('onHideInfopane');
		this.slideInfoZone.cancel();
		if(this.options.slideInfoZoneSlide) {
			if (this.options.slideInfoZoneSlideFrom == 'bottom') {
				this.slideInfoZone.start({'height': 0});
			}else{
				this.slideInfoZone.start({'width': 0});
			}
		}
		//this.slideInfoZone.element.empty();
		return this.slideInfoZone;
	},
	makeLink: function(num) {
		this.currentLink.setProperties({
			href: this.galleryData[num].link,
			title: this.galleryData[num].linkTitle,
			target: this.galleryData[num].linkTarget,
			onclick: this.galleryData[num].linkOnclick,
			style: this.galleryData[num].linkStyle
		})
	},
	clearLink: function() {
		this.currentLink.setProperties({href: '', title: ''});
	}
};
gallery = new Class(gallery);

gallery.Transitions = new Hash ({
	fade: function(oldFx, newFx, oldPos, newPos){
		oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
		oldFx.options.duration = newFx.options.duration = this.options.fadeDuration;
		if (newPos > oldPos) newFx.start({opacity: 1});
		else
		{
			newFx.set({opacity: 1});
			oldFx.start({opacity: 0});
		}
	}
});

/* All code copyright 2007 Jonathan Schemoul */

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Follows: Preloader (class)
 * Simple class for preloading images with support for progress reporting
 * Copyright 2007 Tomocchino.
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

var Preloader = new Class({
  
  Implements: [Events, Options],

  options: {
    root        : '',
    period      : 100
  },
  
  initialize: function(options){
    this.setOptions(options);
  },
  
  load: function(sources) {
    this.index = 0;
    this.images = [];
    this.sources = this.temps = sources;
    this.total = this. sources.length;
    
    this.fireEvent('onStart', [this.index, this.total]);
    this.timer = this.progress.periodical(this.options.period, this);
    
    this.sources.each(function(source, index){
      this.images[index] = new Asset.image(this.options.root + source, {
        'onload'  : function(){ this.index++; if(this.images[index]) this.fireEvent('onLoad', [this.images[index], index, source]); }.bind(this),
        'onerror' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this),
        'onabort' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this)
      });
    }, this);
  },
  
  progress: function() {
    this.fireEvent('onProgress', [Math.min(this.index, this.total), this.total]);
    if(this.index >= this.total) this.complete();
  },
  
  complete: function(){
    $clear(this.timer);
    this.fireEvent('onComplete', [this.images]);
  },
  
  cancel: function(){
    $clear(this.timer);
  }
  
});

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Follows: formatString (function)
 * Original name: Yahoo.Tools.printf
 * Copyright Yahoo.
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function formatString() {
	var num = arguments.length;
	var oStr = arguments[0];
	for (var i = 1; i < num; i++) {
		var pattern = "\\{" + (i-1) + "\\}"; 
		var re = new RegExp(pattern, "g");
		oStr = oStr.replace(re, arguments[i]);
	}
	return oStr; 
}