// -----------------------------------------------------------------------------------
// 
// 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/cr/";

// Define each photo's name, height, width, and caption
var photoArray = new Array(
	// Source, Width, Height, Caption
	new Array("sexy.jpg", "635", "500", "Do You Like My Sexy Earrings?"),
	new Array("trust.jpg", "811", "500", "Trust me, I'm a Photographer"),
	new Array("squawkoff.jpg", "500", "500", "Squawk Off !"),
	new Array("cow.jpg", "339", "500", "Call That a Tongue? This is a Tongue"),
	new Array("feathers.jpg", "806", "500", "Escape to Forever"),
	new Array("hunter.jpg", "326", "500", "I Am the Hunter"),
	new Array("robin.jpg", "721", "500", "If I Want to Sulk I'll Sulk"),
	new Array("big.jpg", "687", "500", "Will I Grow Up To Be As Big As You?"),
	new Array("flying.jpg", "970", "338", "Flying"),
	new Array("narcissus.jpg", "500", "500", "Narcissus"),
	new Array("irishwhiskey.jpg", "700", "500", "Irish Whiskey"),
	new Array("birds.jpg", "534", "500", "The Birds"),
	new Array("sleep.jpg", "752", "500", "Sleepy Kitty"),
	new Array("swan.jpg", "476", "500", "Last Night I Dreamt Somebody Loved Me"),
	new Array("ripples.jpg", "850", "500", "Ripples of Exploration"),
	new Array("fatso.jpg", "299", "500", "Hey Fatso, You Can't Fly"),
	new Array("spider.jpg", "868", "500", "Look At The Size of That Spider!"),
	new Array("faithhealer.jpg", "789", "500", "When I Take Away My Paw You'll Think You're a Rabbit"),
	new Array("choral.jpg", "422", "500", "And We All Sang Together"),
	new Array("bee.jpg", "796", "500", "For Beeing There"),
	new Array("gold.jpg", "543", "500", "Prettygirl"),
	new Array("gaygull.jpg", "367", "500", "Gay Seagull"),
	new Array("kitty.jpg", "333", "500", "Maine Coon Cuddles"),
	new Array("homeless.jpg", "367", "500", "Homeless"),
	new Array("feathersblue.jpg", "776", "500", "Feathers & Blue"),
	new Array("woolly.jpg", "708", "500", "Woolly Wagons"),
	new Array("mondays.jpg", "433", "500", "I Don't Like Mondays"),
	new Array("cuteness.jpg", "703", "500", "The Cuteness Show"),
	new Array("eyes.jpg", "643", "500", "Eyes Of Wonder"),
	new Array("pipe.jpg", "291", "500", "Like a Bird on a Pipe"),
	new Array("punk.jpg", "369", "500", "Say Your Prayers Punk"),
	new Array("kittens.jpg", "369", "500", "We're 2 Cuties")

	);

// 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();
}