// -----------------------------------------------------------------------------------

// 

// This page coded by Scott Upton

// http://www.uptonic.com | http://www.couloir.org

//

// This work is licensed under a Creative Commons License

// Attribution-ShareAlike 2.0

// http://creativecommons.org/licenses/by-sa/2.0/

//

// Associated APIs copyright their respective owners

//

// -----------------------------------------------------------------------------------

// --- version date: 11/28/05 --------------------------------------------------------





// get current photo id from URL

var thisURL = document.location.href;

var splitURL = thisURL.split("#");

var photoId = splitURL[1] - 1;



// if no photoId supplied then set default

var photoId = (!photoId)? 0 : photoId;



// CSS border size x 2

var borderSize = 10;



// Photo directory for this gallery

var photoDir = "photos/before_after/";



// Define each photo's name, height, width, and caption

var photoArray = new Array(

	// Source, Width, Height, Caption

	new Array("1.gif", "708", "265", "Nice and Pretty"),

	new Array("2.gif", "708", "265", "Ready for Spring"),

	new Array("3.gif", "708", "265", "No more hair in the eyes"),

	new Array("4.gif", "708", "265", "Look Mom! I'm pretty again"),

	new Array("5.gif", "708", "265", "You looking at me?"),
	
	new Array("6.gif", "708", "265", "Marco"),
	
	new Array("7.gif", "590", "430", "Zoe"),
	
	new Array("8.gif", "646", "242", "Shea"),
	
	new Array("9.gif", "660", "247", "Max"),
	
	new Array("10.gif", "642", "370", "Labradoodle"),
	
	new Array("11.gif", "708", "265", "Harley")

	);



// Number of photos in this gallery

var photoNum = photoArray.length;



/*--------------------------------------------------------------------------*/



// Additional methods for Element added by SU, Couloir

Object.extend(Element, {

	getWidth: function(element) {

   	element = $(element);

   	return element.offsetWidth; 

	},

	setWidth: function(element,w) {

   	element = $(element);

    	element.style.width = w +"px";

	},

	setHeight: function(element,h) {

   	element = $(element);

    	element.style.height = h +"px";

	},

	setSrc: function(element,src) {

    	element = $(element);

    	element.src = src; 

	},

	setHref: function(element,href) {

    	element = $(element);

    	element.href = href; 

	},

	setInnerHTML: function(element,content) {

		element = $(element);

		element.innerHTML = content;

	}

});



/*--------------------------------------------------------------------------*/



var Slideshow = Class.create();



Slideshow.prototype = {

	initialize: function(photoId) {

		this.photoId = photoId;

		this.photo = 'Photo';

		this.photoBox = 'Container';

		this.prevLink = 'PrevLink';

		this.nextLink = 'NextLink';

		this.captionBox = 'CaptionContainer';

		this.caption = 'Caption';

		this.counter = 'Counter';

		this.loader = 'Loading';

	},

	getCurrentSize: function() {

		// Get current height and width, subtracting CSS border size

		this.wCur = Element.getWidth(this.photoBox) - borderSize;

		this.hCur = Element.getHeight(this.photoBox) - borderSize;

	},

	getNewSize: function() {

		// Get current height and width

		this.wNew = photoArray[photoId][1];

		this.hNew = photoArray[photoId][2];

	},

	getScaleFactor: function() {

		this.getCurrentSize();

		this.getNewSize();

		// Scalars based on change from old to new

		this.xScale = (this.wNew / this.wCur) * 100;

		this.yScale = (this.hNew / this.hCur) * 100;

	},

	setNewPhotoParams: function() {

		// Set source of new image

		Element.setSrc(this.photo,photoDir + photoArray[photoId][0]);

		// Set anchor for bookmarking

		Element.setHref(this.prevLink, "#" + (photoId+1));

		Element.setHref(this.nextLink, "#" + (photoId+1));

	},

	setPhotoCaption: function() {

		// Add caption from gallery array

		Element.setInnerHTML(this.caption,photoArray[photoId][3]);

		Element.setInnerHTML(this.counter,((photoId+1)+'/'+photoNum));

	},

	resizePhotoBox: function() {

		this.getScaleFactor();

		new Effect.Scale(this.photoBox, this.yScale, {scaleX: false, duration: 0.3, queue: 'front'});

		new Effect.Scale(this.photoBox, this.xScale, {scaleY: false, delay: 0.5, duration: 0.3});

		// Dynamically resize caption box as well

		Element.setWidth(this.captionBox,this.wNew-(-borderSize));

	},

	showPhoto: function(){

		new Effect.Fade(this.loader, {delay: 0.5, duration: 0.3});

		// Workaround for problems calling object method "afterFinish"

		new Effect.Appear(this.photo, {duration: 0.5, queue: 'end', afterFinish: function(){Element.show('CaptionContainer');Element.show('PrevLink');Element.show('NextLink');}});

	},

	nextPhoto: function(){

		// Figure out which photo is next

		(photoId == (photoArray.length - 1)) ? photoId = 0 : photoId++;

		this.initSwap();

	},

	prevPhoto: function(){

		// Figure out which photo is previous

		(photoId == 0) ? photoId = photoArray.length - 1 : photoId--;

		this.initSwap();

	},

	initSwap: function() {

		// Begin by hiding main elements

		Element.show(this.loader);

		Element.hide(this.photo);

		Element.hide(this.captionBox);

		Element.hide(this.prevLink);

		Element.hide(this.nextLink);

		// Set new dimensions and source, then resize

		this.setNewPhotoParams();

		this.resizePhotoBox();

		this.setPhotoCaption();

	}

}



/*--------------------------------------------------------------------------*/



// Establish CSS-driven events via Behaviour script

var myrules = {

	'#Photo' : function(element){

		element.onload = function(){

			var myPhoto = new Slideshow(photoId);

			myPhoto.showPhoto();

		}

	},

	'#PrevLink' : function(element){

		element.onmouseover = function(){

			soundManager.play('beep');

		}

		element.onclick = function(){

			var myPhoto = new Slideshow(photoId);

			myPhoto.prevPhoto();

			soundManager.play('select');

		}

	},

	'#NextLink' : function(element){

		element.onmouseover = function(){

			soundManager.play('beep');

		}

		element.onclick = function(){

			var myPhoto = new Slideshow(photoId);

			myPhoto.nextPhoto();

			soundManager.play('select');

		}

	},

	a : function(element){

		element.onfocus = function(){

			this.blur();

		}

	}

};



// Add window.onload event to initialize

Behaviour.addLoadEvent(init);

Behaviour.apply();

function init() {

	var myPhoto = new Slideshow(photoId);

	myPhoto.initSwap();

	soundManagerInit();

}