/*
 * 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
 *
 * Modified version By Tomas Poles (http://www.poles.cz) for support:
 *  - ASP.NET forms
 *  - ASP.NET AJAX (UpdatePanels)
 *  - Indexed gallery (photos list is loaded from server by ajax)
 *  - Dynamic thickbox (method tb_open)
 *  - Localization (cs, en)
 *  - Dynamic images support (url suffix #TB_Image)
 *  - Video content support using FlowPlayer or YouTube
 *  - Google Analytics support
 *
*/

	  
var tb_appUrl = "./../../";
var tb_pathToImage = "./../../system/design/images/tb/loading.gif";
var tb_pathToError = "./../../system/design/images/tb/error.gif";
var tb_pathToPlayer = "./../../player/";

	var tb_useGoogleAnalytics = false;


//on page load call tb_init
$(document).ready(function(){   
	tb_init_elements();
	imgLoader = new Image();// preload image
	imgLoader.src = tb_pathToImage;
	errLoader = new Image();// preload image
	errLoader.src = tb_pathToError;
});

//this function inits thickbox on specified elements
function tb_init_elements()
{
	tb_init('a.thickbox, area.thickbox, input.thickbox', false);//pass where to apply thickbox
	tb_init('a.thickboxPostback, area.thickboxPostback, input.thickboxPostback', true);//pass where to apply thickbox with postback support
	$('a.thickboxGallery, input.thickboxGallery').click(tb_showIndexedGallery); //pass where to apply thickbox as indexed gallery
}

//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk, supportPostBack)
{
	var handler = (supportPostBack === true ? tb_postBackClickHandler : tb_clickHandler);
	$(domChunk).unbind("click", handler);
	$(domChunk).click(handler);
}

function tb_clickHandler()
{
	var obj = $(this);
	var t = this.title || this.name || null;
	var a = this.rev || obj.attr("rev") || this.href || this.alt;
	var g = this.rel || false;
	tb_show(t, a, g);
	this.blur();
	return false;
}

function tb_postBackClickHandler()
{
	var obj = $(this);
	var t = this.title || this.name || null;
	var a = this.rev || obj.attr("rev") || this.href || this.alt;
	var g = this.rel || false;
	tb_show(t, a, g);
	this.blur();
}

function tb_open(caption, url, content, frameName)
{
	var win = window;
	var doc = window.contentDocument || document;
	if (frameName != null) {
		var frame = (parent || window).frames[frameName];
		if (frame) {
			if (frame.contentDocument) doc = frame.contentDocument;
			else if (frame.contentWindow && frame.contentWindow.document) {
				doc = frame.contentWindow.document;
			} else if (frame.document) doc = frame.document;
			if (frame.contentWindow) {
				if (frame.contentWindow.window) win = frame.contentWindow.window;
				else win = frame.contentWindow;
			} else if (frame.window) win = frame.window;
		}
	}
	var url = url || "#TB_inline";
	url += (url.indexOf("?") >= 0 ? "&" : "?") + "inlineId=TB_Dynamic";
	win.$("#TB_Dynamic").remove();
	win.$(doc.body).append("<div id=\"TB_Dynamic\" style=\"display: none\"><div>" + content + "</div></div>");
	win.$("#TB_window").remove();
	win.$("#TB_overlay").remove();
	win.$("#TB_HideSelect").remove();
	win.tb_show(caption, url);
}

function tb_getMainUrl(url)
{
	if (url === null) url = "";
	var idx = url.indexOf("#TB_");
	if (idx !== -1)
		return url.substr(0, idx);
	return url;
}

function tb_getUrlType(url)
{
	if (url === null) url = "";
	var idx = url.indexOf("#");
	if (idx !== -1) {
		var suffix = url.substr(idx, url.length - idx);
		if (suffix === "#TB_Image")
			return "image";
		if (suffix === "#TB_Video")
			return "video";
		if (suffix === "#TB_YouTube" || suffix === "#TB_Youtube")
			return "youtube";
	}
	var baseURL = "";
	if (url.indexOf("?") !== -1){ //ff there is a query string involved
		baseURL = url.substr(0, url.indexOf("?"));
	} else { 
   		baseURL = url;
	}
	baseUrl = baseURL.toLowerCase();
	if (baseUrl.indexOf("youtube.com") !== -1)
		return "youtube";
	var imagesExt = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
	var test = baseURL.match(imagesExt);
	if (test == '.jpg' || test == '.jpeg' || test == '.png' || test == '.gif' || test == '.bmp')
		return "image";
	var videosExt = /\.flv$|\.avi$|\.mpg$|\.mpeg$|\.mp4$/;
	test = baseURL.match(videosExt);
	if (test == '.flv' || test == '.avi' || test == '.mpg' || test == '.mpeg' || test == '.mp4')
		return "video";
	return "content";
}

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

	try {
		tb_showOverlay();
		tb_showLoader();
		
		if (caption === null)
			caption = "";
			
		var urlType = tb_getUrlType(url);
		if(urlType == 'image' || urlType == 'video' || urlType == 'youtube') { //code to show multimedia
		
			tb_showMultimedia(caption, url, imageGroup);
				
		} 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'>Zavřít</a> nebo stiskni 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").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" || params['showTitle'] == "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'>Zavřít</a> nebo stiskni Esc</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
	}
}

// shows overlay layer
function tb_showOverlay()
{
	var isAspNet = tb_detectAspNet();
	var rootElement = isAspNet ? tb_getAspNetForm() : $("body");
	if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
		$("body","html").css({height: "100%", width: "100%"});
		if (isAspNet) rootElement.css({height: "100%", width: "100%"});
		$("html").css("overflow","hidden");
	}
	if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6 and embeded objects in all browsers
		rootElement.append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
		$("#TB_overlay").click(tb_remove);
	}
	/*if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
		$("body","html").css({height: "100%", width: "100%"});
		if (isAspNet) rootElement.css({height: "100%", width: "100%"});
		$("html").css("overflow","hidden");
		if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
			rootElement.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){
			rootElement.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
	}
}

// Show loader
function tb_showLoader()
{
	$('#TB_load').remove();
	$("body").append("<div id='TB_load'><img src='" + imgLoader.src + "' /></div>");
	$('#TB_load').show();
}

// shows one image/video or standard images/video gallery
function tb_showMultimedia(caption, url, imageGroup)
{
	TB_PrevCaption = "";
	TB_PrevURL = "";
	TB_PrevHTML = "";
	TB_NextCaption = "";
	TB_NextURL = "";
	TB_NextHTML = "";
	TB_imageCount = "";
	TB_FoundURL = false;
	var urlType = tb_getUrlType(url);
	if(imageGroup){
		TB_TempArray = (imageGroup.constructor === Array ? imageGroup : $("a[@rel="+imageGroup+"]").get());
		for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
			if (!(tb_getMainUrl(TB_TempArray[TB_Counter].href) == tb_getMainUrl(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='#'>Další</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='#'>Předchozí</a></span>";
				}
			} else {
				TB_FoundURL = true;
				var msgCount = "Fotografie";
				if (urlType == "video")
					msgCount = "Video";
				TB_imageCount = msgCount + " " + (TB_Counter + 1) +" z "+ (TB_TempArray.length);											
			}
		}
	}

	function handleMediaOnLoad()
	{
		$("#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
	};

	if (urlType == "youtube") {
	
		var videoWidth = 640;
		var videoHeight = 360;
		var videoUrl = tb_getMainUrl(url);
		var idx = videoUrl.indexOf("?");
		if (idx < 0)
			idx = videoUrl.indexOf("&");
		if (idx >= 0) {
			var videoQuery = videoUrl.substring(idx + 1);
			var params = tb_parseQuery(videoQuery);
			videoWidth = (params["width"] * 1) || videoWidth;
			videoHeight = (params["height"] * 1) || videoHeight;
		}
		TB_WIDTH = videoWidth + 30;
		TB_HEIGHT = videoHeight + 60;
		$("#TB_window").append("<div id='TB_Image' style='width: " + videoWidth + "px; height: " + videoHeight + "px'><object width='" + videoWidth + "' height='" + videoHeight + "'><param name='movie' value='" + videoUrl + "'></param><param name='allowFullScreen' value='true'></param><param name='allowscriptaccess' value='always'></param><embed src='" + videoUrl + "' type='application/x-shockwave-flash' allowscriptaccess='always' allowfullscreen='true' width='" + videoWidth + "' height='" + videoHeight + "'></embed></object></div>" + "<div id='TB_caption'><div id='TB_firstLine'>"+caption+"</div><div id='TB_secondLine'><span id='TB_counter'>" + TB_imageCount + "</span>" + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Zavřít'>Zavřít</a> nebo stiskni Esc</div>");

		handleMediaOnLoad();

		if (tb_useGoogleAnalytics && pageTracker) {
			pageTracker._trackEvent("Obsah", "Video", caption);
		}

	} else if (urlType == "video") {
	
		var videoWidth = 640;
		var videoHeight = 360;
		var videoUrl = tb_getMainUrl(url);
		var videoQuery = "";
		var idx = videoUrl.indexOf("?");
		if (idx >= 0) {
			videoQuery = videoUrl.substring(idx + 1);
			videoUrl = videoUrl.substring(0, idx);
			var params = tb_parseQuery(videoQuery);
			videoWidth = (params["width"] * 1) || videoWidth;
			videoHeight = (params["height"] * 1) || videoHeight;
		}
		TB_WIDTH = videoWidth + 30;
		TB_HEIGHT = videoHeight + 60;
		$("#TB_window").append("<div id='TB_Image' style='width: " + videoWidth + "px; height: " + videoHeight + "px'></div>" + "<div id='TB_caption'><div id='TB_firstLine'>"+caption+"</div><div id='TB_secondLine'><span id='TB_counter'>" + TB_imageCount + "</span>" + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Zavřít'>Zavřít</a> nebo stiskni Esc</div>");
		flowplayer("TB_Image", tb_pathToPlayer + "flowplayer.swf", {
			clip: {
				url: videoUrl,
				provider: "peeckaStream",
				autoPlay: true,
				autoBuffering: true,
				scaling: "fit"
			},
			plugins:  {
				controls: {
					url: tb_pathToPlayer + "flowplayer-controls.swf",
					autoHide: "always",
					hideDelay: 2000
				},
				peeckaStream: {
					url: tb_pathToPlayer + "flowplayer-pseudostreaming.swf",
					queryString: escape("?seek=${start}" + (videoQuery != null && videoQuery.length > 0 ? "&" + videoQuery : ""))
				}
			}
		});
		handleMediaOnLoad();

		if (tb_useGoogleAnalytics && pageTracker) {
			pageTracker._trackPageview(tb_getGAUrl(videoUrl));
			pageTracker._trackEvent("Obsah", "Video", caption);
		}
	
	} else {

		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='Zavřít'><img id='TB_Image' src='"+tb_getMainUrl(url)+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'><div id='TB_firstLine'>"+caption+"</div><div id='TB_secondLine'><span id='TB_counter'>" + TB_imageCount + "</span>" + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Zavřít'>Zavřít</a> nebo stiskni Esc</div>"); 		
			
			handleMediaOnLoad();
			
			if (tb_useGoogleAnalytics && pageTracker) {
				var photoUrl = tb_getMainUrl(url);
				var idx = photoUrl.indexOf("?");
				if (idx >= 0)
					photoUrl = photoUrl.substring(0, idx);
				pageTracker._trackPageview(tb_getGAUrl(photoUrl));
				pageTracker._trackEvent("Obsah", "Fotografie", caption);
			}
		}
		imgPreloader.onerror = function()
		{
			imgPreloader.src = errLoader.src;
			if (imgPreloader.onload)
				imgPreloader.onload();
		};
		imgPreloader.src = tb_getMainUrl(url);
	}
}

// get google analytics url
function tb_getGAUrl(url)
{
	var idx = url.indexOf(tb_appUrl);
	if (idx == 0) {
		url = url.substring(tb_appUrl.length);
		if (url.indexOf("/") != 0)
			url = "/" + url;
	}
	return url;
}

//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"});
		if (tb_detectAspNet()) tb_getAspNetForm().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;
  }
}

// This function detect when is used ASP.NET page
function tb_detectAspNet() {
	return (
		document.getElementById("__EVENTTARGET") != null
		&& document.getElementById("__EVENTARGUMENT") != null
		&& document.getElementById("__VIEWSTATE") != null
	);
}

// This function return ASP.NET form
function tb_getAspNetForm() {
	var id = document.getElementById("__EVENTTARGET").form.id;
	return $("#" + id);
}

// Load gallery index and shows photos
function tb_showIndexedGallery()
{
	var indexUrl = this.href || this.rel;
	tb_showOverlay();
	tb_showLoader();
	$.ajax({url: indexUrl, method: "GET", dataType: "text", success: tb_galleryIndexLoaded});
	return false;
}

// Gallery index has been loaded -> show image like standard gallery
function tb_galleryIndexLoaded(data, textStatus)
{
	var imageGroup = new Array();
	var items = data.split("\r\n");
	for (var i = 0; i < items.length; i ++) {
		var parts = items[i].split(";");
		if (parts.length < 2) continue;
		imageGroup.push({href: parts[0], title: parts[1]});
	}
	if (imageGroup.length == 0) {
		tb_showMultimedia("V galerii není obsažena žádná fotografie ani video", errLoader.src);
	} else {
		tb_showMultimedia(imageGroup[0].title, imageGroup[0].href, imageGroup);
	}
}