/*
 * Thickbox 2.1 - jQuery plugin for displaying content in a box above the page
 * 
 * Copyright (c) 2006, 2007 Cody Lindley (http://www.codylindley.com)
 *
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 */

// on page load call TB_init
$(function($){
	$("a.thickbox").click(function(){
		// remove click border
		this.blur();
	
		// get caption: either title or name attribute
		var caption = this.title || this.name || "";
		
		// get rel attribute for image groups
		var group = this.rel || false;
		
		// display the box for the elements href
		TB_show(caption, this.href, this.id, this.host, this.title, group);
		
		//exit without junping to href
		return false;
	});
	
	// called when the user clicks on a thickbox link
	function TB_show(caption, url, id, host, title, rel) {
		// create iframe, overlay and box if non-existent
		if ( !$("#TB_HideSelect").length ) {
			$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
			$("#TB_overlay").click(TB_remove);
		}
		// TODO replace or check if event is already assigned
		$(window).scroll(TB_position);
		
		// TODO replace
		TB_overlaySize();
		
		// TODO create loader only once, hide and show on demand
		$("body").append("<div id='TB_load'><img src='/imgfiles/front/imgs/loadingAnimation.gif' /></div>");
		TB_load_position();
		
		// check if a query string is involved
		var baseURL = url.match(/(.+)?/)[1] || url;
	
		// regex to check if a href refers to an image
		var imageURL = /\.(swf)/gi;
		// check for swf
		if ( baseURL.match(imageURL) ) {
			var dummy = { caption: "", url: "", html: "" };
			
			var prev = dummy,
				next = dummy,
				imageCount = "";
			/*var flashPreloader = new SWFObject(url, "video", "500", "400", "9", "#FFFFFF");
				
			//flashPreloader.addParam("wmode", "transparent");
			//flashPreloader.addParam("allowScriptAccess", "sameDomain");
			//flashPreloader.onload = null;
			
			//new SWFObject("reproductorVideo.swf","playlist","450","365","7");
			flashPreloader.addParam("wmode", "transparent");
			flashPreloader.addParam("allowScriptAccess", "sameDomain");
			flashPreloader.addParam("allowfullscreen","true");
			flashPreloader.addVariable("playlistStyle","bottom");
			flashPreloader.addVariable("XMLfile","playlist.xml");
			flashPreloader.addVariable("bgColor","0xCCCCCC");
			flashPreloader.addVariable("IPHOST","http://" + host + "/");
			flashPreloader.addVariable("playListWhenStop","true");*/

			// Resizing large images
			var pagesize = TB_getPageSize();
			var x = pagesize[0] - 150;
			var y = pagesize[1] - 150;
			var flashWidth = 475;
			var flashHeight = 400;
			
			// TODO don't use globals
			TB_WIDTH = flashWidth + 30;
			TB_HEIGHT = flashHeight + 60;
			
			// TODO empty window content instead
			$("#TB_window").append("<div class='vids_rel2'>" + title + "</div><div style='padding:10px' id='flash'></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>Tancar</a></div>");
			
			
			$('#flash').flash(
				{ 
				  src: url,
				  width: 475,
				  height: 400,
				  wmode: 'window',
				  allowfullscreen: 'true',
				  allowScriptAccess: 'always',
				  flashvars: { playlistStyle: 'bottom', XMLfile: 'playlist.xml?cont=' + id, bgColor: '0xFFFFFF', IPHOST: 'http://' + host + '/', playListWhenStop: 'true' }
				},
				{ version: 9 }
			);
			
			$("#TB_closeWindowButton").click(TB_remove);
			
			function buildClickHandler(image) {
				return function() {
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					TB_show(image.caption, image.url, rel);
					return false;
				};
			}
			var goPrev = buildClickHandler(prev);
			var goNext = buildClickHandler(next);
			if ( prev.html ) {
				$("#TB_prev").click(goPrev);
			}
			
			if ( next.html ) {		
				$("#TB_next").click(goNext);
			}
			
			// TODO use jQuery, maybe with event fix plugin, or just get the necessary parts of it
			document.onkeydown = function(e) {
				if (e == null) { // ie
					keycode = event.keyCode;
				} else { // mozilla
					keycode = e.which;
				}
				switch(keycode) {
				case 27:
					TB_remove();
					break;
				case 190:
					if( next.html ) {
						document.onkeydown = null;
						goNext();
					}
					break;
				case 188:
					if( prev.html ) {
						document.onkeydown = null;
						goPrev();
					}
					break;
				}
			}
			
			// TODO don't remove loader etc., just hide and show later
			TB_position();
			$("#TB_load").remove();
			$("#TB_ImageOff").click(TB_remove);
			
			// for safari using css instead of show
			// TODO is that necessary? can't test safari
			$("#TB_window").css({display:"block"});
			
		} else {
			var imageURL = /\.(jpe?g|png|gif|bmp)/gi;
			// check for images
			if ( baseURL.match(imageURL) ) {
				var dummy = { caption: "", url: "", html: "" };
				
				var prev = dummy,
					next = dummy,
					imageCount = "";
					
				// if an image group is given
				if ( rel ) {
					function getInfo(image, id, label) {
						return {
							caption: image.title,
							url: image.href,
							html: "<span id='TB_" + id + "'>&nbsp;&nbsp;<a href='#'>" + label + "</a></span>"
						}
					}
				
					// find the anchors that point to the group
					var imageGroup = $("a[@rel="+rel+"]").get();
					var foundSelf = false;
					
					// loop through the anchors, looking for ourself, saving information about previous and next image
					for (var i = 0; i < imageGroup.length; i++) {
						var image = imageGroup[i];
						var urlTypeTemp = image.href.match(imageURL);
						
						// look for ourself
						if ( image.href == url ) {
							foundSelf = true;
							imageCount = "Image " + (i + 1) + " of "+ (imageGroup.length);
						} else {
							// when we found ourself, the current is the next image
							if ( foundSelf ) {
								next = getInfo(image, "next", "Next &gt;");
								// stop searching
								break;
							} else {
								// didn't find ourself yet, so this may be the one before ourself
								prev = getInfo(image, "prev", "&lt; Prev");
							}
						}
					}
				}
				
				imgPreloader = new Image();
				imgPreloader.onload = function() {
					imgPreloader.onload = null;
		
					// Resizing large images
					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
					
					// TODO don't use globals
					TB_WIDTH = imageWidth + 30;
					TB_HEIGHT = imageHeight + 60;
					
					// TODO empty window content instead
					$("#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'>" + imageCount + prev.html + next.html + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div>");
					
					$("#TB_closeWindowButton").click(TB_remove);
					
					function buildClickHandler(image) {
						return function() {
							$("#TB_window").remove();
							$("body").append("<div id='TB_window'></div>");
							TB_show(image.caption, image.url, rel);
							return false;
						};
					}
					var goPrev = buildClickHandler(prev);
					var goNext = buildClickHandler(next);
					if ( prev.html ) {
						$("#TB_prev").click(goPrev);
					}
					
					if ( next.html ) {		
						$("#TB_next").click(goNext);
					}
					
					// TODO use jQuery, maybe with event fix plugin, or just get the necessary parts of it
					document.onkeydown = function(e) {
						if (e == null) { // ie
							keycode = event.keyCode;
						} else { // mozilla
							keycode = e.which;
						}
						switch(keycode) {
						case 27:
							TB_remove();
							break;
						case 190:
							if( next.html ) {
								document.onkeydown = null;
								goNext();
							}
							break;
						case 188:
							if( prev.html ) {
								document.onkeydown = null;
								goPrev();
							}
							break;
						}
					}
					
					// TODO don't remove loader etc., just hide and show later
					TB_position();
					$("#TB_load").remove();
					$("#TB_ImageOff").click(TB_remove);
					
					// for safari using css instead of show
					// TODO is that necessary? can't test safari
					$("#TB_window").css({display:"block"});
				}
				imgPreloader.src = url;
				
			} else { //code to show html pages
				var queryString = url.match(/\?(.+)/)[1];
				var params = TB_parseQuery( queryString );
				TB_WIDTH = (params['width']*1) + 30;
				TB_HEIGHT = (params['height']*1) + 40;
		
				var ajaxContentW = TB_WIDTH - 30,
					ajaxContentH = TB_HEIGHT - 45;
				if(url.indexOf('TB_iframe') != -1){	
					urlNoQuery = url.split('TB_');		
					$("#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></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showIframe()'> </iframe>");
				} else {
					$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
				}
						
				$("#TB_closeWindowButton").click(TB_remove);
				
					if(url.indexOf('TB_inline') != -1){	
						$("#TB_ajaxContent").html($('#' + params['inlineId']).html());
						TB_position();
						$("#TB_load").remove();
						$("#TB_window").css({display:"block"}); 
					}else{
						$("#TB_ajaxContent").load(url, function(){
							TB_position();
							$("#TB_load").remove();
							$("#TB_window").css({display:"block"}); 
						});
					}
				
			}
		}
		
		$(window).resize(TB_position);
		
		document.onkeyup = function(e){ 	
			if (e == null) { // ie
				keycode = event.keyCode;
			} else { // mozilla
				keycode = e.which;
			}
			if(keycode == 27){ // close
				TB_remove();
			}	
		}
			
	}
	
	//helper functions below
	
	function TB_showIframe(){
		$("#TB_load").remove();
		$("#TB_window").css({display:"block"});
	}
	
	function TB_remove() {
		$("#TB_imageOff").unbind("click");
		$("#TB_overlay").unbind("click");
		$("#TB_closeWindowButton").unbind("click");
		$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
		$("#TB_load").remove();
		return false;
	}
	
	function TB_position() {
		var pagesize = TB_getPageSize();	
		var arrayPageScroll = TB_getPageScrollTop();
		var style = {width: TB_WIDTH, left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2), top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2)};
		$("#TB_window").css(style);
	}
	
	function TB_overlaySize(){
		if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX) {	
			yScroll = window.innerHeight + window.scrollMaxY;
			xScroll = window.innerWidth + window.scrollMaxX;
			var deff = document.documentElement;
			var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
			var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
			xScroll -= (window.innerWidth - wff);
			yScroll -= (window.innerHeight - hff);
		} else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth){ // all but Explorer Mac
			yScroll = document.body.scrollHeight;
			xScroll = document.body.scrollWidth;
		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
			yScroll = document.body.offsetHeight;
			xScroll = document.body.offsetWidth;
		}
		$("#TB_overlay").css({"height": yScroll, "width": xScroll});
		$("#TB_HideSelect").css({"height": yScroll,"width": xScroll});
	}
	
	function TB_load_position() {
		var pagesize = TB_getPageSize();
		var arrayPageScroll = TB_getPageScrollTop();
		$("#TB_load")
			.css({left: (arrayPageScroll[0] + (pagesize[0] - 100)/2), top: (arrayPageScroll[1] + ((pagesize[1]-100)/2)) })
			.css({display:"block"});
	}
	
	function TB_parseQuery ( query ) {
		// return empty object
		if( !query )
			return {};
		var params = {};
		
		// parse query
		var pairs = query.split(/[;&]/);
		for ( var i = 0; i < pairs.length; i++ ) {
			var pair = pairs[i].split('=');
			if ( !pair || pair.length != 2 )
				continue;
			// unescape both key and value, replace "+" with spaces in value
			params[unescape(pair[0])] = unescape(pair[1]).replace(/\+/g, ' ');
	   }
	   return params;
	}
	
	function TB_getPageScrollTop(){
		var yScrolltop;
		var xScrollleft;
		if (self.pageYOffset || self.pageXOffset) {
			yScrolltop = self.pageYOffset;
			xScrollleft = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft ){	 // Explorer 6 Strict
			yScrolltop = document.documentElement.scrollTop;
			xScrollleft = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScrolltop = document.body.scrollTop;
			xScrollleft = document.body.scrollLeft;
		}
		arrayPageScroll = new Array(xScrollleft,yScrolltop) 
		return arrayPageScroll;
	}
	
	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 = new Array(w,h) 
		return arrayPageSize;
	}
});