/******************************************************************/
/*                     based on MOOdalBox 1.2.1                   */
/******************************************************************/

// 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			= 200;		// Initial height of the box (px)
var _CONTENTS_WIDTH 		= 450;		// Actual width of the box (px)
var _CONTENTS_HEIGHT		= 300;		// Actual height of the box (px)
var _DEF_CONTENTS_WIDTH		= 450;		// Default width of the box (px) - used for resetting when a different setting was used
var _DEF_CONTENTS_HEIGHT	= 300;		// 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			= true;	// 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,
			onClose: null
		}, options || {});
		
		// scan anchors for those opening a MOOdalBox
		this.assignEvents();
		/*
		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: 'auto'/*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 }).set(0)/*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.step = -1;
		this.ajaxRequest = Class.empty;

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

	open: function(sLinkHref, sLinkTitle, sLinkRel, onClose) {
		this.href = sLinkHref;
		this.title = sLinkTitle;
		this.rel = sLinkRel;
		this.position();
		this.setup(true);
		
		this.options.onClose = onClose;
		
		this.top = Window.getScrollTop() + (Window.getHeight() / 15);
		this.center.setStyles({top: this.top+'px', display: ''});
		this.fx.overlay.start(0, 0.8)/*custom(0.8)*/;
		return this.loadContents(sLinkHref, 'get', '');
	},
	
	post: function(sLinkHref, sLinkTitle, sLinkRel, vars, onClose) {
    this.href = sLinkHref;
    this.title = sLinkTitle;
    this.rel = sLinkRel;
    this.position();
    this.setup(true);
    if (onClose) this.options.onClose = onClose;
    this.top = Window.getScrollTop() + (Window.getHeight() / 15);
    this.center.setStyles({top: this.top+'px', display: ''});
    this.fx.overlay.start(0, 0.8)/*custom(0.8)*/;
    return this.loadContents(sLinkHref, 'post', vars);
  },

	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(href, method, params) {
	  this.href = href;		
		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.set(0)/*hide()*/;
		
		// AJAX call here
		var nextEffect = this.nextEffect.bind(this);
		var ajaxFailure = this.ajaxFailure.bind(this);
		var ajaxOptions = {
			update: 		this.contents, 
			method:  method,
			evalScripts: 	this.options.evalScripts,
			evalResponse: 	this.options.evalResponse,
			onComplete: 	nextEffect, 
			onFailure: 		ajaxFailure,
			data:         params
			};
		this.ajaxRequest = new Ajax(href, ajaxOptions);
		this.ajaxRequest.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);		
	},
	
	assignEvents: function()
	{
	   $A($$('a')).each(function(el)
      {
        if(el.rel && el.href && el.rel.test('^moodalbox', 'i')) 
        {
          
          
          if (this.href)
          {
          
          
	          el.addEvent('click', function(event)
	          {
	             if (!event.shift)
	            {
	              el.href = el.href.setQueryValues({'ajax': 'yes'});
	              
		            return AIM.submit(el, {'onComplete' : function(response) {
		              MOOdalBox.href = document.location.href;
			            MOOdalBox.contents.setHTML(response);
			            MOOdalBox.assignEvents();
			          } });
			        }
			        else
			        {
			          el.href = el.href.setQueryValues({'ajax': 'no'});
			        }
	          });
	         }
	         else
	         {
	           el.addEvent('click', function(event)
	            {
	              if (!event.shift)
	              {
	                
	                return MOOdalBox.open (el.href.setQueryValues({'ajax': 'yes'}), el.title, el.rel);
	              }
	            });
           }
        }  
      }, this);
      
      
	
	   $A($$('form')).each(function(el)
	   {
	   
	      if(el.getProperty('rel') && el.action && el.getProperty('rel').test('^moodalbox', 'i')) 
        {
          var url = el.action;
          if (!url) url = this.href;
          if (!url) url = document.location.href;
          
          el.action = url.setQueryValues({'ajax': 'yes'});
          
          /**
           * Attach Enter event for IE
           */
          if (window.ie)
          {
	          var inputs = el.getElements('input');
	
	          for (var j=0;j < inputs.length;j++)
	          {
	            var input = inputs[j];
	            
	            if(input.type != 'hidden')
	            {
	              input.addEvent('keydown', function(e) 
		            {
		                if (event && event.keyCode == 13) 
		                {
		                    e.stop();
		                    el.submit();
	                  }
		            });
	            }
	          };
	        }
          
          AIM.form(el, AIM.frame({
                'onComplete' : function(response) 
                {
                 
                  if (MOOdalBox.href)
                  {
                   MOOdalBox.href = document.location.href; 
                   
                  }
                  MOOdalBox.contents.setHTML(response);
                  MOOdalBox.assignEvents();
                  
                }
              }));
          
	            el.addEvent('submit', function(event)
	            {
	             if (!MOOdalBox.contents.getHTML())
	              {
	                 if (event) event.stop();
	                 
	                 if (el.method == 'post')
	                 {
	                  
	                   MOOdalBox.post (el.action, el.title, el.getProperty('rel'), el);
	                 }
	                 else
	                 {
	                  MOOdalBox.open (el.action, el.title, el.getProperty('rel'));
	                 }
	                 return false;
	              };
	              
	              return true;
		          });
        }
	   }, 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: 'auto'/*this.options.contentsHeight + "px"*/});
			
			this.assignEvents();

			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:
			// was: top: (this.top + this.center.clientHeight)+'px'
			this.bottom.setStyles({top: (this.top - 30)+'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 = 5;
			}
	},
	
	
	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.options.onClose)
	  {
	  
	   this.options.onClose.create({'bind': this})();
	  }
	
		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;
	},
	
	handleOutput: function(form) {
	  MOOdalBox.contents.setHTML(form);
	}	
};

String.extend({
  toQueryObject: function(){
    var o = {};
    $A(this.replace(/(^.*\?)|(#.*$)/g,'').split('&')).each(function(p){
      p = p.split("=");
      o[decodeURIComponent(p[0])] = decodeURIComponent(p[1]);
    });
    return o;
  },
  
  parseUri: function(){
    var bits = this.match(/^(?:([^:\/?#.]+):)?(?:\/\/)?(([^:\/?#]*)(?::(\d*))?)((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[\?#]|$)))*\/?)?([^?#\/]*))?(?:\?([^#]*))?(?:#(.*))?/);
    return (bits)
      ? bits.associate(['uri', 'scheme', 'authority', 'domain', 'port', 'path', 'directory', 'file', 'query', 'fragment'])
      : null;
  },
  
  setQueryValues: function(extra){
    var parts = this.parseUri();
    var h = new Hash();
    if (parts['query'])
    {
      h.merge(parts['query'].toQueryObject());
      h.merge(extra);
    }
    else
    {
       h.merge(extra);
    }
    h['rnd'] =  Math.round(Math.random() * 100000);
    var url = '';
    
    if (parts['scheme'])
    {
      url = parts['scheme'] + '://';
    }
    if (parts['authority'])
    {
      url += parts['authority'];
    }
    if (parts['path'])
    {
      url += parts['path'];
    }
    
    var query = h.toQueryString();
    if (query)
    {
      query = '?' + query;
    }
    if (parts['fragment'])
    {
      query += '#'+parts['fragment'];
    }
    
    return url + query;
  }
  
});



/**
*
*  AJAX IFRAME METHOD (AIM)
*  http://www.webtoolkit.info/
*
**/

AIM = {

    frame : function(c) {

        var n = 'f' + Math.floor(Math.random() * 99999);
        var d = document.createElement('DIV');
        d.innerHTML = '<iframe src="about:blank" style="display: none; height:0px;" id="'+n+'" name="'+n+'" onload="AIM.loaded(\''+n+'\')"></iframe>';
        document.body.appendChild(d);

        var i = document.getElementById(n);
        if (c && typeof(c.onComplete) == 'function') {
            i.onComplete = c.onComplete;
        }

        return n;
    },

    form : function(f, name) {
        f.setAttribute('target', name);
    },

    submit : function(f, c) {
        AIM.form(f, AIM.frame(c));
        
        if (c && typeof(c.onStart) == 'function') {
            return c.onStart();
        } else {
            return true;
        }
    },

    loaded : function(id) 
    {
        var i = document.getElementById(id);
        if (i.contentDocument) {
            var d = i.contentDocument;
        } else if (i.contentWindow) {
            var d = i.contentWindow.document;
        } else {
            var d = window.frames[id].document;
        }
        
        if (d.location.href == "about:blank") {
            return;
        }
           
        

        if (typeof(i.onComplete) == 'function') {
            i.onComplete(d.body.innerHTML);
        }
    }

}



// startup
window.addEvent('domready', MOOdalBox.init.bind(MOOdalBox));