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

/*                        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         = 400;         // Duration of height and width resizing (ms)

var _INITIAL_WIDTH            = 250;        // Initial width of the box (px)

var _INITIAL_HEIGHT            = 250;        // 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    = 400;        // 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(true);

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

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

        this.fx.overlay.custom(0.4);

        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();

        

        // 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));