/******************************************************************/
/*                        MOOdalBox 1.3.b5                        */
/* 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 		= 400; 		// Duration of height and width resizing (ms)
var _INITIAL_WIDTH			= 250;		// Initial width of the box (px)
var _INITIAL_HEIGHT			= 300;		// Initial height of the box (px)
var _CONTENTS_WIDTH 		= 500;		// Actual width of the box (px)
var _CONTENTS_HEIGHT		= 400;		// Actual height of the box (px)
var _DEF_CONTENTS_WIDTH		= 500;		// Default width of the box (px) - used for resetting when a different setting was used
var _DEF_CONTENTS_HEIGHT	= 180;		// Default height of the box (px) - used for resetting when a different setting was used
var _DEF_FULLSCREEN_WIDTH	= 0.85;		// Default fullscreen width (%)
var _DEF_FULLSCREEN_HEIGHT	= 0.6;		// Default fullscreen height (%)
var _ANIMATE_CAPTION		= true;		// Enable/Disable caption animation
var _EVAL_SCRIPTS			= true;	// Option to evaluate scripts in the response text
var _EVAL_RESPONSE			= false;	// Option to evaluate the whole response text
var _CLOSE_ADMIN            = false;

// The MOOdalBox object in its beauty
var MOOdalBox = new Class ({

	options: {
		resizeDuration: 	_RESIZE_DURATION,
		initialWidth: 		_INITIAL_WIDTH,
		initialHeight: 		_INITIAL_HEIGHT,
		contentsWidth: 		_CONTENTS_WIDTH,
		contentsHeight: 	_CONTENTS_HEIGHT,
		defContentsWidth: 	_DEF_CONTENTS_WIDTH,
		defContentsHeight: 	_DEF_CONTENTS_HEIGHT,
		defFullscreenWidth:	_DEF_FULLSCREEN_WIDTH,
		defFullscreenHeight:_DEF_FULLSCREEN_HEIGHT,
		animateCaption: 	_ANIMATE_CAPTION,
		evalScripts: 		_EVAL_SCRIPTS,
		evalResponse: 		_EVAL_RESPONSE
	},

	// init the MOOdalBox
	initialize: function (options) {

		// init default options
		this.setOptions(options);
		this.version = '1.3B5';

		// scan anchors for those opening a MOOdalBox
		this.anchors = [];
		this.scanAnchors (document.documentElement, false);
		// scan forms for those opening a MOOdalBox
		this.forms = [];
		this.scanForms (document.documentElement, false);

		// 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.overlayFrame = new Element('iframe').setOpacity(0).setStyles({position: 'absolute', width: '100%'}).injectInside(document.body);
		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);
		var closeLink = '#';
		if (_CLOSE_ADMIN){
			closeLink = '/admin';
		}
		this.closelink = new Element('a').setProperties({id: 'mb_close_link', href: closeLink}).injectInside(this.bottom);
		this.caption = new Element('div').setProperty('id', 'mb_caption').injectInside(this.bottom);
		this.clearDiv = 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.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({ onComplete: nextEffect }),
			contents: 	this.contents.effect('opacity', { duration: 500, onComplete: nextEffect }),
			bottom: 	this.bottom.effects({ duration: 400, onComplete: nextEffect })
		};

		// AJAX related options
		var ajaxFailure = this.ajaxFailure.bind(this);
		this.ajaxOptions = {
			update: 		this.contents,
			evalScripts: 	this.options.evalScripts,
			evalResponse: 	this.options.evalResponse,
			onComplete: 	nextEffect,
			onFailure: 		ajaxFailure
			};

		this.ajaxRequest = Class.empty;

	},

	click: function(link) {
		return this.open (link.href, link.title, link.rel, false);
	},

	open: function(sLinkHref, sLinkTitle, sLinkRel, oForm) {
		this.href = sLinkHref;
		this.title = sLinkTitle;
		this.rel = sLinkRel;

		if (oForm) {
			if (oForm.method == 'get') {
				this.href += "?" + oForm.toQueryString();
				this.ajaxOptions = Object.extend(this.ajaxOptions, {method: 'get', postBody: ''});
			} else {
				this.ajaxOptions = Object.extend(this.ajaxOptions, {method: 'post', postBody: oForm});
			}
		} else {
			this.ajaxOptions = Object.extend(this.ajaxOptions, {method: 'get', postBody: ''});
		}

		this.position();
		this.setup(true);
		this.caption.setHTML(this.title);
		this.top = Window.getScrollTop() + (Window.getHeight() / 15) + 100;
		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'});
		this.overlayFrame.setStyles({top: Window.getScrollTop()+'px', height: Window.getHeight()+'px', display: 'block'}).setOpacity(0.01);
	},

	scanAnchors: function(oWhere, bForce) {

		// scan anchors for those opening a MOOdalBox
		$(oWhere).getElements('a').each(function(el){
			// we use a regexp to check for links that
			// have a rel attribute starting with "moodalbox"
			if(el.href && ((el.rel && el.rel.test('^moodalbox', 'i')) || (bForce && !el.onclick))) {
				if (bForce && !el.rel) {
					// if we're forcing links to open in a moodalbox, we're keeping the current size
					el.rel = "moodalbox " + this.options.contentsWidth + "px "+ this.options.contentsHeight + "px";
					if (this.wizardMode) { el.rel += " wizard"; }
				}
				el.onclick = this.click.pass(el, this);
				/*el.addEvent ('click', function (e) {
					e = new Event(e);
					this.click.pass(el, this);
					}.bindWithEvent(this));*/
				this.anchors.push(el);
			}
		}, this);
	},

	scanForms: function (oWhere, bForce) {
		// scan anchors for those opening a MOOdalBox
		$(oWhere).getElements('form').each(function(el){
			// we use a regexp to check for links that
			// have a rel attribute starting with "moodalbox"
			el.rel = el.getProperty('rel');
			if((el.rel && el.rel.test('^moodalbox', 'i')) || bForce) {
				if (bForce && !el.rel) {
					// if we're forcing links to open in a moodalbox, we're keeping the current size
					el.rel = "moodalbox " + this.options.contentsWidth + "px "+ this.options.contentsHeight + "px";
					if (this.wizardMode) { el.rel += " wizard"; }
				}
				el.onsubmit = this.open.pass([el.action, el.title, el.rel, el], this);
				this.forms.push(el);
			}
		}, this);
	},

	setup: function(open) {
		//var elements = $A($$('object'));
		//elements.extend($$(window.ActiveXObject ? 'select' : 'embed'));
		//elements.each(function(el){ el.style.visibility = open ? 'hidden' : ''; });

		if (window.gecko && open) {
			this.elements2hide = $A(document.getElementsByTagName('embed'));
			this.elements2hide.each(function(el){
			if (open) el.lbBackupStyle = el.style.visibility;
			el.style.visibility = open ? 'hidden' : el.lbBackupStyle;
		});
		}


		//alert ('setup');
		var fn = open ? 'addEvent' : 'removeEvent';
		//window[fn]('scroll', this.eventPosition)[fn]('resize', this.eventPosition);
		//window[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

		// fullscreen switch concept originally by Lennart Pilon (http://ljpilon.nl/)

		// we check for a "fullscreen" switch
		if (this.rel.test("fullscreen")){

			this.options.contentsWidth 	= this.options.defFullscreenWidth*window.getWidth();
			this.options.contentsHeight = this.options.defFullscreenHeight*window.getHeight();

		} else { // we check for other specified dimensions (px or %)

			var aDim = this.rel.match(/[0-9.]+(px|%)/g);
			var w, h;

			if (aDim && aDim[0]){ //first dimension is interpreted as width

				w = aDim[0].toInt();

				if (aDim[0].test("%")) {
					this.options.contentsWidth = (w > 0) ? 0.01*w*window.getWidth() : this.options.defFullscreenWidth*window.getWidth();
				} else {
					this.options.contentsWidth = (w > 0) ? w : this.options.defContentsWidth;
				}
			} else { // we switch to defaults if there aren't any dimensions specified
				this.options.contentsWidth 	= this.options.defContentsWidth;
				this.options.contentsHeight = this.options.defContentsHeight;
			}

			if (aDim && aDim[1]){ // we have a second dimension specified, which we'll interpret as height

				h = aDim[1].toInt();

				if (aDim[1].test("%")) {
					this.options.contentsHeight = (h > 0) ? 0.01*h*window.getHeight() : this.options.defFullscreenHeight*window.getHeight();
				} else {
					this.options.contentsHeight = (h > 0) ? h : this.options.defContentsHeight;
				}
			} else if (aDim && aDim[0]) {
				// we have the first dimension specified, but not the second
				// so we interpret as width = height = the given value
				if (aDim[0].test("%")) {
					this.options.contentsHeight = (w > 0) ? 0.01*w*window.getHeight() : this.options.defFullscreenHeight*window.getHeight();
				} else {
					this.options.contentsHeight = (w > 0) ? w : this.options.defContentsHeight;
				}
			}
			// correct a little approximation bug (size flickers)
			this.options.contentsWidth = Math.floor(this.options.contentsWidth);
			this.options.contentsHeight = Math.floor(this.options.contentsHeight);

		}

		this.wizardMode = this.rel.test("wizard");

		// this is where we'll check for other options passed via the rel attribute

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

		this.fx.contents.hide();

		// AJAX call here
		this.ajaxRequest = new Ajax(this.href, this.ajaxOptions).request();

		// make the local timeout call here

		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);
	},


	// make the local timeout function here


	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.options.duration = this.options.resizeDuration;
				this.fx.resize.custom({height: [this.center.clientHeight, this.contents.offsetHeight]});
				break;
			}
			this.step++;
			break;

		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++;
			break;

		case 3:
			this.bottom.setStyles({top: (this.top + this.center.clientHeight)+'px', width: this.contents.style.width, marginLeft: this.center.style.marginLeft, display: ''});

			// check to see if in wizard mode and parse links
			if (this.wizardMode) { this.scanAnchors(this.contents, true); }
			if (this.wizardMode) { this.scanForms(this.contents, true); }

			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'});
			break;

		case 5:
			this.step = 0;
			break;
		}
	},

	keyboardListener: function(event) {
		// close the MOOdalBox when the user presses CTRL + W, CTRL + X, ESC
		event = new Event (event);
		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);
		this.overlayFrame.setStyle('display', 'none');
		return true;
	},

	// re-configure the moodalbox on the fly
	config: function(options) {
		this.setOptions (options);
		return false; // to be used on links
	},

	getVersion: function () {
		return this.version;
	}

});

MOOdalBox.implement(new Options(), new Events());

// startup