/*
 * MooBox - Adaptation of Thickbox for MooTools
 * By: Rafael F. P. Viana (http://rafaelfpviana.com)
 * version: 1.0
 *
 * ORIGINAL CODE!!!
 * Thickbox 3.1 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2007 cody lindley
 * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
*/
  
//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk){
	$$(domChunk).each(function(el){
		el.addEvent('click', function(event){
			var t = this.title || this.name || null;
			var a = this.href || this.alt;
			var g = false;
			tb_show(t,a,g);
			this.blur();
			event.preventDefault();
			return false;
		}.bindWithEvent(el));
	});
}

function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link
	try {
		if ( $type(document.body.style.maxHeight) === "false") {//if IE 6
			$$("body","html").each(function(el){ el.setStyles({height: "100%", width: "100%"}); });
			$$("html").each(function(el){ el.setStyle("overflow","hidden"); });
			if ( $chk($("TB_HideSelect")) === false) {//iframe to hide select elements in ie6
				$$("body").each(function(el){
					var a = new Element('iframe',{
						'id':'TB_HideSelect'
					});
					var first = el.firstChild;
					if (first){
						el.insertBefore(a, first);
					}else{
						el.appendChild(a);	
					}
					
					new Element('div',{
						'id':'TB_overlay',
						'events':{'click':function(){tb_remove()}}
					}).injectAfter('TB_HideSelect');
					new Element('div',{
						'id':'TB_window'
					}).injectAfter('TB_overlay');
				});
			}
		}else{//all others
			if( $chk($("TB_overlay")) === false){
				$$("body").each(function(el){
					var a = new Element('div',{
						'id':'TB_overlay',
						'events':{'click':function(){tb_remove()}}
					});
					var first = el.firstChild;
					if (first){
						el.insertBefore(a, first);
					}else{
						el.appendChild(a);	
					}
					new Element('div',{
						'id':'TB_window',
						'styles':{'opacity':'0'}
					}).injectAfter('TB_overlay');
					fx = new Fx.Style('TB_window', 'opacity', {duration: 300});
					fx.start($("TB_window").getStyle('opacity'),1);
				});
			}
		}

		if(tb_detectMacXFF()){
			$("TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
		}else{
			$("TB_overlay").addClass("TB_overlayBG");//use background and opacity
		}

		if(caption===null){caption="";}
		
		var baseURL;
		if( url.indexOf("?") !== -1){ //ff there is a query string involved
			baseURL = url.substr(0, url.indexOf("?"));
		}else{ 
			baseURL = url;
		}
	   
		var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
		var urlType = baseURL.toLowerCase().match(urlString);
		//code to show images
		if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){
			TB_PrevCaption = "";
			TB_PrevURL = "";
			TB_PrevHTML = "";
			TB_NextCaption = "";
			TB_NextURL = "";
			TB_NextHTML = "";
			TB_imageCount = "";
			TB_FoundURL = false;

			imgPreloader = new Image();
			imgPreloader.onload = function(){
				imgPreloader.onload = null;
					
				// Resizing large images - orginal by Christian Montoya edited by me.
				var pagesize = tb_getPageSize();
				var x = pagesize[0] - 150;
				var y = pagesize[1] - 150;
				var imageWidth = imgPreloader.width;
				var imageHeight = imgPreloader.height;
				if (imageWidth > x) {
					imageHeight = imageHeight * (x / imageWidth); 
					imageWidth = x; 
					if (imageHeight > y) { 
						imageWidth = imageWidth * (y / imageHeight); 
						imageHeight = y; 
					}
				} else if (imageHeight > y) { 
					imageWidth = imageWidth * (y / imageHeight); 
					imageHeight = y; 
					if (imageWidth > x) { 
						imageHeight = imageHeight * (x / imageWidth); 
						imageWidth = x;
					}
				}
				// End Resizing
				
				TB_WIDTH = imageWidth + 30;
				TB_HEIGHT = imageHeight + 60;
				new Element('a',{'id':'TB_ImageOff','title':'Fechar'}).setHTML("<img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/>").injectTop('TB_window');
				new Element('div',{'id':'TB_caption'}).injectInside('TB_window');
				new Element('div',{'id':'TB_closeWindow'}).setHTML("<a href='javascript:void(0);' id='TB_closeWindowButton' title='Fechar'>fechar</a> ou pressione Esc").injectInside('TB_window');
				
				$("TB_closeWindowButton").addEvent('click', function(event){
					tb_remove();
				});
	
				document.onkeydown = function(e){
					if (e == null) { // ie
						keycode = event.keyCode;
					} else { // mozilla
						keycode = e.which;
					}
					if(keycode == 27){ // close
						tb_remove();
					}	
				};
				
				tb_position();
				$("TB_ImageOff").addEvent('click', function(event){
					tb_remove();
				});
				$("TB_window").setStyle('display','block'); //for safari using css instead of show
			};
			
			imgPreloader.src = url;
		}else{//code to show html
			
			var queryString = url.replace(/^[^\?]+\??/,'');
			var params = tb_parseQuery( queryString );

			TB_WIDTH = (params['width']*1) + 30 || 630; //defaults to 630 if no paramaters were added to URL
			TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
			ajaxContentW = TB_WIDTH - 30;
			ajaxContentH = TB_HEIGHT - 45;
			
			if(url.indexOf('TB_iframe') != -1){// either iframe or ajax window		
				urlNoQuery = url.split('TB_');
				if( $chk($("TB_iframeContent")) !== false ){
					$("TB_iframeContent").remove();
				}
				if( params['modal'] != "true" ){//iframe no modal
					$("TB_window").setHTML("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='javascript:void(0);' id='TB_closeWindowButton' title='Fechar'>fechar</a> ou pressione Esc</div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' > </iframe>");
				}else{//iframe modal
					$("TB_overlay").removeEvent();
					$("TB_window").setHTML("<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'> </iframe>");
				}
			}else{// not an iframe, ajax
				if( $("TB_window").getStyle("display") != "block"){
					if(params['modal'] != "true"){//ajax no modal
						$("TB_window").setHTML("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='javascript:void(0);' id='TB_closeWindowButton'>fechar</a> ou pressione Esc</div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
					}else{//ajax modal
						$("TB_overlay").removeEvent();
						$("TB_window").setHTML("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");	
					}
				}else{//this means the window is already up, we are just loading new content via ajax
					$("TB_ajaxContent")[0].style.width = ajaxContentW +"px";
					$("TB_ajaxContent")[0].style.height = ajaxContentH +"px";
					$("TB_ajaxContent")[0].scrollTop = 0;
					$("TB_ajaxWindowTitle").setHTML(caption);
				}
			}
			$("TB_closeWindowButton").addEvent('click', function(event){
				tb_remove();
			});
			
			if(url.indexOf('TB_inline') != -1){	
				$("TB_ajaxContent").setHTML( $(params['inlineId']).innerHTML );
				/*
				$("TB_window").addEvent('unload', function(event){
					$( params['inlineId'] ).append( $("TB_ajaxContent").getChildren() ); // move elements back when you're finished
				}).bindWithEvent(params);
				*/
				tb_position();
				$("TB_window").setStyle('display',"block"); 
			}else if(url.indexOf('TB_iframe') != -1){
				tb_position();
				if( window.webki ){//safari needs help because it will not fire iframe onload
					$("TB_window").setStyle('display',"block");
				}
			}else{
				var urlAjax = url += "&random=" + (new Date().getTime());
				new Ajax(urlAjax, {
					method: 'get',
					update: $('TB_ajaxContent'),
					onComplete: function(r) {
						tb_position();
						tb_init("#TB_ajaxContent a.thickbox");
						$("TB_window").setStyle('display',"block");
					}
				}).request();
			}
		}

		if( $type(params) !== false ){
			if( !params['modal'] ){
				document.onkeyup = function(e){ 	
					if (e == null) { // ie
						keycode = event.keyCode;
					} else { // mozilla
						keycode = e.which;
					}
					if(keycode == 27){ // close
						tb_remove();
					}	
				};
			}
		}
	} catch(e) {
		alert(e);
		//nothing here
	}
}

//helper functions below
function tb_showIframe(){
	$("TB_window").setStyle('display',"block");
}

function tb_remove() {
	if( $chk($("TB_ImageOff")) ){
	 	$("TB_ImageOff").removeEvent("click");
	}
	$("TB_closeWindowButton").removeEvent("click");
	/*
	$("TB_window").fadeOut("fast",function(){
	});
	*/
	fx = new Fx.Style('TB_window', 'opacity', {duration: 300});
	fx.start($("TB_window").getStyle('opacity'),0);
	(function(){
		$$( ['TB_window','TB_overlay','TB_HideSelect'] ).each(
			function(el){
				el.removeEvent();el.remove();
			}
		);
	}).delay(310);

	if ( $type(document.body.style.maxHeight) == "false") {//if IE 6
		$$("body","html").each(function(el){ el.setStyles({height: "auto", width: "auto"}); });
		$$("html").each(function(el){ el.setStyle("overflow",""); });
	}
	document.onkeydown = "";
	document.onkeyup = "";
	return false;
}

function tb_position() {
	$("TB_window").setStyles({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
	if ( $type(window.ie6) === false ) { // take away IE6
		$("TB_window").setStyle('marginTop', '-' + parseInt((TB_HEIGHT / 2),10) + 'px');
	}
}

function tb_parseQuery ( query ) {
   var Params = {};
   if ( ! query ) {return Params;}// return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}

function tb_getPageSize(){
	var de = document.documentElement;
	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	arrayPageSize = [w,h];
	return arrayPageSize;
}

function tb_detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}