/**
* @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
* @modified Dylan Kennet, Mantis - to use an element object instead of an id for container
* 
*/
var elSelect = new Class({
	options: {
		container: false,
		baseClass : 'elSelect'
	},
	source : false,
	selected : false,
	_select : false,
	current : false,
	selectedOption : false,
	dropDown : false,
	optionsContainer : false,
	onChange: null,
	/*
	pass the options,
	create html and inject into container
	*/
	initialize: function(options){
		this.setOptions(options);
		if ( !this.options.container ) return;
		this.selected = false;
		this.source = this.options.container.getElement('select');
		this.buildFrameWork();
		$(this.source).getElements('option').each( this.addOptionToDiv, this );
		this.source.hide();
		this._select.injectInside(this.options.container);
		this.bindEvents();
	},
	
	buildFrameWork : function() {
		this._select = new Element('div').addClass( this.options.baseClass );
		this.current = new Element('div').addClass('selected').injectInside($(this._select));
		this.selectedOption = new Element('div').addClass('selectedOption').injectInside($(this.current));
		this.dropDown = new Element('div').addClass('dropDown').addClass('clearfix').injectInside($(this.current));
		this.optionsContainer = new Element('div').addClass('optionsContainer').injectInside($(this._select));
		var t = new Element('div').addClass('optionsContainerTop').injectInside($(this.optionsContainer));
		var o = new Element('div').injectInside($(t));
		var p = new Element('div').injectInside($(o));
		var t = new Element('div').addClass('optionsContainerBottom').injectInside($(this.optionsContainer));
		var o = new Element('div').injectInside($(t));
		var p = new Element('div').injectInside($(o));
	},
	
	bindEvents : function() {
		document.addEvent('click', function() { 
				if ( this.optionsContainer.getStyle('display') == 'block') 
					this.onDropDown();
			}.bind(this));

		this.options.container.addEvent( 'click', function(e) {
			if (elSelect.last && elSelect.last!=this) {
				if ( elSelect.last.optionsContainer.getStyle('display') == 'block') elSelect.last.onDropDown();
			}
			e.stop();
			elSelect.last=this;
		}.bind(this) );
		this.current.addEvent('click', this.onDropDown.bindWithEvent(this) );
		
	},
	
	//add single option to select
	addOptionToDiv: 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.source.setProperty('value',option.value);
		}
		o.set('text',option.get('text'));
		o.injectBefore($(this.optionsContainer).getLast());
	},
	
	addOption: function( option ){
		this.source.grab(option);
		this.addOptionToDiv(option);
	},
	
	removeOption: function( option ){
		var o = option.dispose();
		$(this.optionsContainer).getFirst('div.option [text='+option.text+'][value='+ option.value +']');
		return o;
	},
	
	clear: function () {
		this.source.empty();
		this.selectedOption.set('text','');
		$(this.optionsContainer).getElements('div.option').destroy();
	},
	
	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) {
		if ( this.selected != e.target ) {
			this.selected.removeClass('selected');
			e.target.addClass('selected');
			this.selected = e.target;
			this.selectedOption.set('text',this.selected.get('text'));
			this.source.setProperty('value',this.selected.getProperty('value'));
			this.source.fireEvent("change",[e]);
		}
		this.onDropDown();
	},
	onOptionMouseover : function(e){
		this.selected.removeClass('selected');
		e.target.addClass('selected');
	},
	onOptionMouseout : function(e){
		e.target.removeClass('selected');
	}
	
});
elSelect.implement(new Events);
elSelect.implement(new Options);