/******************************************************************/

/*                        MOOdalBox 1.2.1                         */

/* A modal box (inline popup), used to display remote content     */

/* loaded using AJAX, written for the mootools framework          */

/*         by Razvan Brates, razvan [at] e-magine.ro              */

/******************************************************************/

/*               http://www.e-magine.ro/moodalbox                 */

/******************************************************************/

/*                                                                */

/* MIT style license:                                             */

/* http://en.wikipedia.org/wiki/MIT_License                       */

/*                                                                */

/* mootools found at:                                             */

/* http://mootools.net/                                           */

/*                                                                */

/* Original code based on "Slimbox", by Christophe Beyls:         */

/* http://www.digitalia.be/software/slimbox                       */

/******************************************************************/



// Constants defined here can be changed for easy config / translation

// (defined as vars, because of MSIE's lack of support for const)



var _ERROR_MESSAGE = "Oops.. there was a problem with your request.<br /><br />" +

					"Please try again.<br /><br />" +

					"<em>Click anywhere to close.</em>"; // the error message displayed when the request has a problem

var _RESIZE_DURATION 		= 10; 		// Duration of height and width resizing (ms)

var _INITIAL_WIDTH			= 756;		// Initial width of the box (px)

var _INITIAL_HEIGHT			= 368;		// Initial height of the box (px)

var _CONTENTS_WIDTH 		= 756;		// Actual width of the box (px)

var _CONTENTS_HEIGHT		= 368;		// Actual height of the box (px)

var _DEF_CONTENTS_WIDTH		= 756;		// Default width of the box (px) - used for resetting when a different setting was used

var _DEF_CONTENTS_HEIGHT	= 368;		// Default height of the box (px) - used for resetting when a different setting was used

var _ANIMATE_CAPTION		= true;		// Enable/Disable caption animation

var _EVAL_SCRIPTS			= false;	// Option to evaluate scripts in the response text

var _EVAL_RESPONSE			= false;	// Option to evaluate the whole response text



// The MOOdalBox object in its beauty

var MOOdalBox = {

	

	// init the MOOdalBox

	init: function (options) {

		

		// init default options

		this.options = Object.extend({

			resizeDuration: 	_RESIZE_DURATION,

			initialWidth: 		_INITIAL_WIDTH,	

			initialHeight: 		_INITIAL_HEIGHT,

			contentsWidth: 		_CONTENTS_WIDTH,

			contentsHeight: 	_CONTENTS_HEIGHT,

			defContentsWidth: 	_DEF_CONTENTS_WIDTH,

			defContentsHeight: 	_DEF_CONTENTS_HEIGHT,

			animateCaption: 	_ANIMATE_CAPTION,

			evalScripts: 		_EVAL_SCRIPTS,

			evalResponse: 		_EVAL_RESPONSE

		}, options || {});

		

		// scan anchors for those opening a MOOdalBox

		this.anchors = [];

		$A($$('a')).each(function(el){

			// we use a regexp to check for links that 

			// have a rel attribute starting with "moodalbox"

			if(el.rel && el.href && el.rel.test('^moodalbox', 'i')) {

				el.onclick = this.click.pass(el, this);

				this.anchors.push(el);

			}

		}, this);

		

		// add event listeners

		this.eventKeyDown = this.keyboardListener.bindWithEvent(this);

		this.eventPosition = this.position.bind(this);

		

		// init the HTML elements

		// the overlay (clickable to close)

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

		// the center element

		this.center = new Element('div').setProperty('id', 'mb_center').setStyles({width: this.options.initialWidth+'px', height: this.options.initialHeight+'px', marginLeft: '-'+(this.options.initialWidth/2)+'px', display: 'none'}).injectInside(document.body);

		// the actual page contents

		this.contents = new Element('div').setProperty('id', 'mb_contents').injectInside(this.center);



		// the bottom part (caption / close)

		this.bottom = new Element('div').setProperty('id', 'mb_bottom').setStyle('display', 'none').injectInside(document.body);

		this.closelink = new Element('a').setProperties({id: 'mb_close_link', href: '#'}).injectInside(this.bottom);

		this.caption = new Element('div').setProperty('id', 'mb_caption').injectInside(this.bottom);

		new Element('div').setStyle('clear', 'both').injectInside(this.bottom);

		

		this.error = new Element('div').setProperty('id', 'mb_error').setHTML(_ERROR_MESSAGE);

		

		// attach the close event to the close button / the overlay

		this.closelink.onclick = this.overlay.onclick = this.close.bind(this);

		

		// init the effects

		var nextEffect = this.nextEffect.bind(this);

		this.fx = {

			overlay: 	this.overlay.effect('opacity', { duration: 500 }).hide(),

			resize: 	this.center.effects({ duration: this.options.resizeDuration, onComplete: nextEffect }),

			contents: 	this.contents.effect('opacity', { duration: 500, onComplete: nextEffect }),

			bottom: 	this.bottom.effects({ duration: 400, onComplete: nextEffect })

		};



		this.ajaxRequest = Class.empty;



	},

	

	click: function(link) {

		return this.open (link.href, link.title, link.rel);

	},



	open: function(sLinkHref, sLinkTitle, sLinkRel) {

		this.href = sLinkHref;

		this.title = sLinkTitle;

		this.rel = sLinkRel;

		this.position();

		this.setup(false);

		this.top = Window.getScrollTop() + (Window.getHeight() / 15);

		this.center.setStyles({top: this.top+'px', display: ''});

		this.fx.overlay.custom(0.8);

		return this.loadContents(sLinkHref);

	},



	position: function() {

		this.overlay.setStyles({top: Window.getScrollTop()+'px', height: Window.getHeight()+'px'});

	},



	setup: function(open) {

		var elements = $A($$('object'));

		elements.extend($$(window.ActiveXObject ? 'select' : 'embed'));

		elements.each(function(el){ el.style.visibility = open ? 'hidden' : ''; });

		var fn = open ? 'addEvent' : 'removeEvent';

		window[fn]('scroll', this.eventPosition)[fn]('resize', this.eventPosition);

		document[fn]('keydown', this.eventKeyDown);

		this.step = 0;

	},

	

	loadContents: function() {		

		if(this.step) return false;

		this.step = 1;

		

		// check to see if there are specified dimensions

		// if not, fall back to default values

		var aDim = this.rel.match(/[0-9]+/g);

		this.options.contentsWidth = (aDim && (aDim[0] > 0)) ? aDim[0] : this.options.defContentsWidth;

		this.options.contentsHeight = (aDim && (aDim[1] > 0)) ? aDim[1] : this.options.defContentsHeight;

						

		this.bottom.setStyles({opacity: '0', height: '0px', display: 'none'});

		this.center.className = 'mb_loading';

		

		this.fx.contents.hide();

		

		if(this.href.indexOf("#")  > 0)

		{

			var _id = this.href.substr(this.href.indexOf("#") + 1);

			var c = document.getElementById(this.href.substr(this.href.indexOf("#") + 1));

			if (c) 

			{

				this.contents.setHTML(c.innerHTML);

				initvScrollbars();

				var as = this.contents.getElementsByTagName('A');				

				$A(as).each(function(el){

						el.onclick = this.close.bind(this);

				}, this);

				

				this.nextEffect();

			}



		}

		else

		{

			// AJAX call here

			var nextEffect = this.nextEffect.bind(this);

			var ajaxFailure = this.ajaxFailure.bind(this);

			var ajaxOptions = {

				method: 		'get',

				update: 		this.contents, 

				evalScripts: 	this.options.evalScripts,

				evalResponse: 	this.options.evalResponse,

				onComplete: 	nextEffect, 

				onFailure: 		ajaxFailure

				};

			this.ajaxRequest = new Ajax(this.href, ajaxOptions).request();

		}

		return false;

	},

	

	ajaxFailure: function (){

		this.contents.setHTML('');

		this.error.clone().injectInside(this.contents);

		this.nextEffect();

		this.center.setStyle('cursor', 'pointer');

		this.bottom.setStyle('cursor', 'pointer');

		this.center.onclick = this.bottom.onclick = this.close.bind(this);		

	},

	

	nextEffect: function() {

		switch(this.step++) {

		case 1:

			// remove previous styling from the elements 

			// (e.g. styling applied in case of an error)

			this.center.className = '';

			this.center.setStyle('cursor', 'default');

			this.bottom.setStyle('cursor', 'default');

			this.center.onclick = this.bottom.onclick = '';

			this.caption.setHTML(this.title);

			

			this.contents.setStyles ({width: this.options.contentsWidth + "px", height: this.options.contentsHeight + "px"});



			if(this.center.clientHeight != this.contents.offsetHeight) {

				this.fx.resize.custom({height: [this.center.clientHeight, this.contents.offsetHeight]});

				break;

			}

			this.step++;

					

		case 2:

			if(this.center.clientWidth != this.contents.offsetWidth) {

				this.fx.resize.custom({width: [this.center.clientWidth, this.contents.offsetWidth], marginLeft: [-this.center.clientWidth/2, -this.contents.offsetWidth/2]});

				break;

			}

			this.step++;

		

		case 3:

			this.bottom.setStyles({top: (this.top + this.center.clientHeight)+'px', width: this.contents.style.width, marginLeft: this.center.style.marginLeft, display: ''});

			this.fx.contents.custom(0,1);

			break;

		

		case 4:

			if(this.options.animateCaption) {

				this.fx.bottom.custom({opacity: [0, 1], height: [0, this.bottom.scrollHeight]});

				break;

			}

			this.bottom.setStyles({opacity: '1', height: this.bottom.scrollHeight+'px'});



		case 5:

			this.step = 0;

		}

	},

	

	

	keyboardListener: function(event) {

		// close the MOOdalBox when the user presses CTRL + W, CTRL + X, ESC

		if ((event.control && event.key == 'w') || (event.control && event.key == 'x') || (event.key == 'esc')) {

			this.close();

			event.stop();

		}		

	},

	

	close: function() {

		if(this.step < 0) return;

		this.step = -1;

		for(var f in this.fx) this.fx[f].clearTimer();

		this.center.style.display = this.bottom.style.display = 'none';

		this.center.className = 'mb_loading';

		this.fx.overlay.chain(this.setup.pass(false, this)).custom(0);

		return false;

	}

		

};



// startup

Window.onDomReady(MOOdalBox.init.bind(MOOdalBox));