/*
 * 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
 */

(function($) {

   var tb_pathToImage = "/images/loadingAnimation.gif";

   /*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/

   //on page load call tb_init
   $(document).ready(function(){
		       tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
		       imgLoader = new Image();// preload image
		       imgLoader.src = tb_pathToImage;
		     });

   //add thickbox to href & area elements that have a class of .thickbox
   function tb_init(domChunk){
     $(domChunk).click(function(){
			 var t = this.title || this.name || null;
			 var a = this.href || this.alt;
			 var g = this.rel || false;
			 tb_show(t,a,g);

			 this.blur();
			 return false;
		       });
   }

   function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link

     try {
       if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
	 $("body","html").css({height: "100%", width: "100%"});
	 $("html").css("overflow","hidden");
	 if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
	   $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
	   $("#TB_overlay").click(tb_remove);
	 }
       }else{//all others
	 if(document.getElementById("TB_overlay") === null){
	   $("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
	   $("#TB_overlay").click(tb_remove);
	 }
       }

       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="";}
       $("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
       $('#TB_load').show();//show loader

       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);

       if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images

	 TB_PrevCaption = "";
	 TB_PrevURL = "";
	 TB_PrevHTML = "";
	 TB_NextCaption = "";
	 TB_NextURL = "";
	 TB_NextHTML = "";
	 TB_imageCount = "";
	 TB_FoundURL = false;
	 if(imageGroup){
	   TB_TempArray = $("a[@rel="+imageGroup+"]").get();
	   for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
	     var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
	     if (!(TB_TempArray[TB_Counter].href == url)) {
	       if (TB_FoundURL) {
		 TB_NextCaption = TB_TempArray[TB_Counter].title;
		 TB_NextURL = TB_TempArray[TB_Counter].href;
		 TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
	       } else {
		 TB_PrevCaption = TB_TempArray[TB_Counter].title;
		 TB_PrevURL = TB_TempArray[TB_Counter].href;
		 TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
	       }
	     } else {
	       TB_FoundURL = true;
	       TB_imageCount = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);
	     }
	   }
	 }

	 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;
	   $("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a> or Esc Key</div>");

	   $("#TB_closeWindowButton").click(tb_remove);

	   if (!(TB_PrevHTML === "")) {
	     function goPrev(){
	       if($(document).unbind("click",goPrev)){$(document).unbind("click",goPrev);}
	       $("#TB_window").remove();
	       $("body").append("<div id='TB_window'></div>");
	       tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
	       return false;
	     }
	     $("#TB_prev").click(goPrev);
	   }

	   if (!(TB_NextHTML === "")) {
	     function goNext(){
	       $("#TB_window").remove();
	       $("body").append("<div id='TB_window'></div>");
	       tb_show(TB_NextCaption, TB_NextURL, imageGroup);
	       return false;
	     }
	     $("#TB_next").click(goNext);

	   }

	   document.onkeydown = function(e){
	     if (e == null) { // ie
	       keycode = event.keyCode;
	     } else { // mozilla
	       keycode = e.which;
	     }
	     if(keycode == 27){ // close
	       tb_remove();
	     } else if(keycode == 190){ // display previous image
	       if(!(TB_NextHTML == "")){
		 document.onkeydown = "";
		 goNext();
	       }
	     } else if(keycode == 188){ // display next image
	       if(!(TB_PrevHTML == "")){
		 document.onkeydown = "";
		 goPrev();
	       }
	     }
	   };

	   tb_position();
	   $("#TB_load").remove();
	   $("#TB_ImageOff").click(tb_remove);
	   $("#TB_window").css({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_');
	   $("#TB_iframeContent").remove();
	   if(params['modal'] != "true"){//iframe no modal
	     $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a> or Esc Key</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").unbind();
	     $("#TB_window").append("<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'> </iframe>");
	   }
	 }else{// not an iframe, ajax
	   if($("#TB_window").css("display") != "block"){
	     if(params['modal'] != "true"){//ajax no modal
	       $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a> or Esc Key</div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
	     }else{//ajax modal
	       $("#TB_overlay").unbind();
	       $("#TB_window").append("<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").html(caption);
	   }
	 }

	 $("#TB_closeWindowButton").click(tb_remove);

	 if(url.indexOf('TB_inline') != -1){
	   $("#TB_ajaxContent").append($('#' + params['inlineId']).children());

	   $("#TB_window").unload(function () {
				    $('#' + params['inlineId']).append( $("#TB_ajaxContent").children() ); // move elements back when you're finished
				  });
	   tb_position();
	   $("#TB_load").remove();
	   $("#TB_window").css({display:"block"});
	 }else if(url.indexOf('TB_iframe') != -1){
	   tb_position();
	   if($.browser.safari){//safari needs help because it will not fire iframe onload
	     $("#TB_load").remove();
	     $("#TB_window").css({display:"block"});
	   }
	 }else{
	   $("#TB_ajaxContent").load(url += "?random=" + (new Date().getTime()),function(){//to do a post change this load method
				       tb_position();
				       $("#TB_load").remove();
				       tb_init("#TB_ajaxContent a.thickbox");
				       $("#TB_window").css({display:"block"});
				     });
	 }

       }

       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) {
       //nothing here
     }
   }

   //helper functions below
   function tb_showIframe(){
     $("#TB_load").remove();
     $("#TB_window").css({display:"block"});
   }

   function tb_remove() {
     $("#TB_imageOff").unbind("click");
     $("#TB_closeWindowButton").unbind("click");
     $("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
     $("#TB_load").remove();
     if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
       $("body","html").css({height: "auto", width: "auto"});
       $("html").css("overflow","");
     }
     document.onkeydown = "";
     document.onkeyup = "";
     return false;
   }

   function tb_position() {
     $("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
     if ( !(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
       $("#TB_window").css({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;
     }
   }

   window.Lightbox = {
     open: tb_show,
     close: tb_remove
   }

 })(jQuery);