/*
Script: 		comboBoo.js
License:		MIT-style license.
Credits:		Julien Colorz - www.colorz.fr | based on Bruno Torrinha - www.torrinha.com
				Mootools 1.2 compatible
				Support long list by adding overflow scroll.
				Mootools framework - mootools.net.
*/


function clrz_fix_position_comboboo(el){
    var pos = el.pos.getCoordinates();
    if($('divchoices-' + el.name+el.id)){
        $('divchoices-' + el.name+el.id).setStyles({
             top: pos.top+pos.height+'px',
             left: pos.left+'px',
             position:'absolute',
             'z-index':15000001
        });
    }
}


function clrz_comboboo_randomString(string_length) {
	var chars = "0123456789abcdefghiklmnopqrstuvwxyz";
	var randomstring = '';
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}
	return randomstring;
}


var comboBoo = new Class({
	options: {
		className: 'comboBoo',
		maxHeight:130,
		selectBgColorOver:'',
		selectBgColorOut:''
	},


	initialize: function(el, options){

                if(el.id == '') el.id = clrz_comboboo_randomString(8);


		//this.setOptions(options);
		this.oldCombo = $(el);
		this.oldCombo2 = $(el);
		this.bOpen = false;

		var pos = el.getCoordinates();

		this.oldCombo.setStyles({'position':'absolute','visibility':'hidden','left':(this.oldCombo.getWidth()*-1)+'px'});
		/*console.log(pos);*/
		this.comboLink = new Element('a', {'class': this.options.className + '-label', 'id': el.name+el.id})
			//.setStyles({top: pos.top+'px', left: pos.left+'px',position:'absolute','background-color':this.options.selectBgColorOut})
			.setStyles({ width: pos.width+'px','background-color':this.options.selectBgColorOut})
			//.inject(document.body,'inside').set('html',el.options[el.options.selectedIndex].text);
			.inject(el,'after').set('html',el.options[el.options.selectedIndex].text);

		this.comboList = new Element('ul', {'class': this.options.className + '-list', 'id': 'choices-' + el.name+el.id}).setStyles({margin:0,padding:0});



		this.divList = new Element('div', {'class':'div-list', 'id': 'divchoices-' + el.name+el.id})
						.setStyles({ top: pos.top+pos.height+'px', left: pos.left+'px', width: pos.width + 33+'px',position:'absolute','z-index':15000001})
						.inject($(document.body),'bottom')
						.adopt(this.comboList);

                el.timer = '';
                el.pos = this.comboLink;
                window.addEvent('resize', function (){
                    $clear(el.timer);el.timer = (function(){
                        clrz_fix_position_comboboo(el);
                    }).delay(250);
                });

		this.fx={	comboLink: new Fx.Morph(this.comboLink, {duration: '300', transition: Fx.Transitions.Sine.easeOut,wait:false}),
					comboList: new Fx.Morph(this.divList, {duration: '500', transition: Fx.Transitions.Sine.easeOut,wait:false})}


		this.build(el);

	},

	build: function(el){

		for(i = 0; i < el.length; i++) {
			var el2 = new Element('li', {'id': i+'-'+this.comboList.id}).set('html',el.options[i].text);
			this.addChoiceEvents(el2).inject(this.comboList,'inside');


			/*if(el.options[i].getProperty('selected'))
			this.choiceSelect(el.options[i]);*/



		}
		this.addComboLinkEvents(this.comboLink);
		/* combo scroll*/
		if(this.comboList.getHeight()>this.options.maxHeight)
		this.divList.setStyles({height:this.options.maxHeight+'px'});
		this.fx.comboList.set({'opacity':0});
	},

	click: function(el) {
            clrz_fix_position_comboboo(this.oldCombo);
		if (this.bOpen) {
                    this.bOpen = false;
                    this.fx.comboList.start({'opacity':0});
		}
                else {
                    this.bOpen = true;
                    this.fx.comboList.set({'top':this.comboLink.getTop()+this.comboLink.getHeight()});
                    this.fx.comboList.start({'opacity':1});
		}
	},

	comboOver: function() {

		if (!this.bOpen) this.fx.comboLink.start({'background-color':this.options.selectBgColorOver});
	},

	comboOut: function(el) {

		if (!this.bOpen) this.fx.comboLink.start({'background-color':this.options.selectBgColorOut});
	},

	choiceOver: function(el) {
		if (this.selected)
                    this.selected.removeClass('choice-selected');
                var elem;
                if(typeof(el)=='string'){
                    elem = $(el);
                }else if(typeof(el)=='object'){
                    elem = $(el[0]);
                }
                this.selected = elem.addClass('choice-selected');

	},

	choiceSelect: function(el) {

			this.bOpen = false;

		this.fx.comboList.start({'opacity':0,'background-color':eval(this.options.selectBgColorOut)});

                var elem;
                if(typeof(el)=='string'){
                    elem = $(el);
                }else if(typeof(el)=='object'){
                    elem = $(el[0]);
                }
                if(elem){
                    this.comboLink.set('html',elem.get('text'));
                    var theid = elem.id.split('-');
                    this.oldCombo.selectedIndex = theid[0];
                }
	},

	addComboLinkEvents: function(el) {
		var maclass=this;
		return el.addEvents({
			'click': function(){
                            maclass.click(el.getProperty('id'));
                        },
			'mouseover': function(){
                            maclass.comboOver(el.getProperty('id'));
                        },
			'mouseleave': function(){
                            maclass.comboOut(el.getProperty('id'));
                        }
		});


	},

	addChoiceEvents: function(el) {

		return el.addEvents({
			mouseover: this.choiceOver.bind(this, [el.id]),
			mousedown: this.choiceSelect.bind(this, [el.id])
		});

	}
});

comboBoo.implement(new Events, new Options);