/**
* @file elSelect.js
* @downloaded from http://www.cult-f.net/2007/12/14/elselect/
* @author Sergey Korzhov aka elPas0
* @site  http://www.cult-f.net
* @date December 14, 2007
* 
*/
var elSelect = new Class({
	options: {
		container: false,
		baseClass : 'elSelect'
	},
	source : false,
	selected : false,
	_select : false,
	current : false,
	selectedOption : false,
	dropDown : false,
	optionsContainer : false,
	hiddenInput : false,

	initialize: function(options){

		this.setOptions(options)
		
		if ( !this.options.container ) return
		
		this.selected = false
		this.source = $(this.options.container).getElement('select')

        this.fixSelected();
		this.buildFrameWork();
		
		$(this.source).getElements('option').each( this.addOption, this )
		$(this.options.container).set( 'html', '' )
		this._select.injectInside($(this.options.container))		
		this.bindEvents();
	},	
    fixSelected : function(){
      var oselected = false;
      $(this.source).getElements('option').each( function(el){
        if( el.selected ) oselected = true;
      });
      if( oselected == false && $(this.source).options.length > 0 ){
        $(this.source).options[0].selected = true;
      }
    },
	buildFrameWork : function() {
		this._select = new Element('div').addClass( this.options.baseClass )
		this.current = new Element('div').addClass('selected').inject($(this._select))
		this.selectedOption = new Element('div').addClass('selectedOption').inject($(this.current))
		this.dropDown = new Element('div').addClass('dropDown').inject($(this.current))
		new Element('div').addClass('clear').inject($(this._select))
		this.optionsContainer = new Element('div').addClass('optionsContainer').inject($(this._select))
		var t = new Element('div').addClass('optionsContainerTop').inject($(this.optionsContainer))
		var o = new Element('div').inject($(t))
		var p = new Element('div').inject($(o))
		var t = new Element('div').addClass('optionsContainerBottom').inject($(this.optionsContainer))
		var o = new Element('div').inject($(t))
		var p = new Element('div').inject($(o))

		this.hiddenInput = new Element('input').setProperties({
			type  : 'hidden',
			name  : this.source.getProperty('name'), 
            id    : this.source.getAttribute('id')
		}).inject($(this._select));
        
	},
	
	bindEvents : function() {
		document.addEvent('click', function() { 
				if ( this.optionsContainer.getStyle('display') == 'block') 
					this.onDropDown()
			}.bind(this));
			
		$(this.options.container).addEvent( 'click', function(e) { new Event(e).stop(); } )		
		this.current.addEvent('click', this.onDropDown.bindWithEvent(this) )
		
	},
	
	//add single option to select
	addOption: function( option ){
    	var o = new Element('div').addClass('option').setProperty('value',option.value)
		if ( option.disabled ) { o.addClass('disabled') } else {
			o.addEvents( {
				'click': this.onOptionClick.bindWithEvent(this),
				'mouseout': this.onOptionMouseout.bindWithEvent(this),
				'mouseover': this.onOptionMouseover.bindWithEvent(this)
			})
		}
		
		if ( $defined(option.getProperty('class')) && $chk(option.getProperty('class')) ) 
			o.addClass(option.getProperty('class'))

		if ( option.selected ) { 
			if ( this.selected) this.selected.removeClass('selected');
			this.selected = o
			o.addClass('selected')
			this.selectedOption.set('text', option.text);
			this.hiddenInput.setProperty('value',option.value);
		}
		o.set( 'text', option.text)		
		o.injectBefore($(this.optionsContainer).getLast())
	},
	
	onDropDown : function( e ) {
			
			if ( this.optionsContainer.getStyle('display') == 'block') {
				this.optionsContainer.setStyle('display','none')
			} else {
				this.optionsContainer.setStyle('display','block')
				this.selected.addClass('selected')
				//needed to fix min-width in ie6
				var width =  this.optionsContainer.getStyle('width').toInt() > this._select.getStyle('width').toInt() ?
															this.optionsContainer.getStyle('width')
															:
															this._select.getStyle('width')
															
				this.optionsContainer.setStyle('width', width)
				this.optionsContainer.getFirst().setStyle('width', width)
				this.optionsContainer.getLast().setStyle('width', width)
			}						
	},
	onOptionClick : function(e) {
		var event = new Event(e)
		if ( this.selected != event.target ) {
			this.selected.removeClass('selected')
			event.target.addClass('selected')
			this.selected = event.target
			this.selectedOption.set( 'text', this.selected.get( 'text' ));
			this.hiddenInput.setProperty('value',this.selected.getProperty('value'));
		}
		this.onDropDown()
	},
    select: function( value ){
       var elselect = this;
       $(this.optionsContainer).getElements('.option').each( function(el){
         if( value == el.getProperty('value') ){
           if ( elselect.selected != el ) {
             elselect.selected.removeClass('selected')
             el.addClass('selected')
             elselect.selected = el;
             elselect.selectedOption.set( 'text', elselect.selected.get( 'text' ));
             elselect.hiddenInput.setProperty('value',elselect.selected.getProperty('value'));
           }
           elselect.optionsContainer.setStyle('display','none');
         }
       });
    },
	onOptionMouseover : function(e){
		var event = new Event(e)
		this.selected.removeClass('selected')
		event.target.addClass('selected')
	},
	onOptionMouseout : function(e){
		var event = new Event(e)
		event.target.removeClass('selected')
	}
	
});
elSelect.implement(new Events);
elSelect.implement(new Options);