/**
* @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',
    truncate: false
	},

	source : false,
	selected : false,
	_select : false,
	current : false,
	selectedOption : false,
	dropDown : false,
	optionsContainer : false,
	hiddenInput : false,
  ielibug: false,
	initialize: function(options){
		this.setOptions(options)
		
		if ( !this.options.container ) return
		
		this.selected = false
		this.source = $(this.options.container).getElement('select').dispose();
		this.buildFrameWork()
		
		$(this.source).getElements('option').each( this.addOption, this )
		$(this.options.container).set('HTML','')
		this._select.injectInside($(this.options.container))

		this.bindEvents()

    // IE bug parent node doesn't shrink to the good height
    if ( Browser.Engine.trident && $(this.options.container).nodeName == 'DIV' && $(this.options.container).parentNode.nodeName == 'LI' ) {
      this.ielibug = true;
      this.updateParentContainerHeight();
    }


	},

  updateParentContainerHeight: function()
  { 
    if(this.ielibug) {
      $(this.options.container).parentNode.style.height = $(this.options.container).getHeight() + 'px';
    }
  },
	

	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').injectInside($(this.current))
		new Element('div').addClass('clear').injectInside($(this._select))
		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))

		this.hiddenInput = new Element('input').setProperties({
			type  : 'hidden',
			name  : this.source.getProperty('name')				
		}).injectInside($(this.options.container))
				
	},
	
	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');
      newText = this.options.truncate ? option.text.truncate(this.options.truncate) : option.text;
			this.selectedOption.set('text',newText);
			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')
        this.selectedOption.removeClass('open');
			} else {
        this.selectedOption.addClass('open');
				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);
			}						
      this.updateParentContainerHeight();
	},
	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
      newText = this.options.truncate ? this.selected.get('text').truncate(this.options.truncate) : this.selected.get('text');
			this.selectedOption.set('text', newText);
			this.hiddenInput.setProperty('value',this.selected.getProperty('value'));
      this.source.onchange();
		}
		this.onDropDown()
	},
	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);

var elSelectReplacer = new Class({

  Implements: [Options],
  options: {
    selectClassName: 'elselect-select',
    truncate: false
  },
  initialize: function(options) {
		this.setOptions(options);
    $$('select.' +this.options.selectClassName).each(function(item) {
      css_id = 'select-container-' + item.name;
      selectContainer = new Element('div', { id: css_id });
      parentN = item.parentNode;
      selectContainer.adopt(item);
      $(parentN).adopt(selectContainer);
      new elSelect( { container: selectContainer, truncate: this.options.truncate } );
    }.bind(this));
  }

});