/* Note:
	This version of Smoothbox was tweaked by Nathaniel Nolet (vNJN20071129)
	Code is covered by same license as below, and I tried to remember to mark any changes.  

	Changes I made:
		If TB_remove() is called, it will remove TB_load if it's still around.
			It was POSSIBLE to get the window in a funny state if you pounded on the links.
			The above should make that no longer possible.
			
		Add detection for when we are too big for our window
			This is VERY simple and just jumps out of the Smoothbox code (treats it like a normal link).
			The reason I did this was because opening an iFrame in a window
			that is too small AND keeping it centered in the space causes problems.
						
		Fix the safari reload weirdness.  (I think.  Maybe.)
			Safari caches the content of an iFrame. if you press the reload button it
			goes in a weird state where all the iframes are the same content.  I
			now change src via javascript directly, which fixes this.
*/

/*
 * Smoothbox v20070814 by Boris Popoff (http://gueschla.com)
 *
 * Based on Cody Lindley's Thickbox, MIT License
 *
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 */

// on page load call TB_init
window.addEvent('domready', TB_init);

// prevent javascript error before the content has loaded
TB_WIDTH = 0;
TB_HEIGHT = 0;
var TB_doneOnce = 0 ;

// add smoothbox to href elements that have a class of .smoothbox
function TB_init(){
	$$("a.smoothbox").each(function(el){el.onclick=TB_bind});
}

function TB_bind(event) {
	var event = new Event(event);

	//NJN: moved this so I could shove it on the end of the href
	// get caption: either title or name attribute
	var caption = this.title || this.name || "";

	
	//NJN: HACK HACK HACK
	//If the width or height is too small, we'll just return true and not run the SmoothBox code
	//I should pass this along below to avoid running this twice, but I'm trying to change as little as possible right now.
	//This ALSO should make the multi-image popup work the same in the new window, but I didn't need anything but
	//iFrames this time around (sorry!).

	var queryString = this.href.match(/\?(.+)/)[1];
	var params = TB_parseQuery( queryString );	
	var pop_w = (params['width']*1) + 30;
	var pop_h = (params['height']*1) + 40;

	if ( !isNaN(pop_w) && !isNaN(pop_h))
	{
		if ( (window.getWidth() < pop_w) || (window.getHeight() < pop_h) )
		{
			//This bit might not be useful to you, but it lets me put the title on
			//the next page
			this.href = this.href + "&title=" + caption;
			
			//If I didn't put a target on the link I should have.
			return true;
		}
	}	
	//NJN: End hack


	// stop default behaviour
	event.preventDefault();	
	// remove click border
	this.blur();
	// get rel attribute for image groups
	var group = this.rel || false;
	// display the box for the elements href
	TB_show(caption, this.href, group);
	this.onclick=TB_bind;
	return false;
}


// called when the user clicks on a smoothbox link
function TB_show(caption, url, rel) {

	// create iframe, overlay and box if non-existent

	if ( !$("TB_overlay") )
	{
		new Element('iframe').setProperty('id', 'TB_HideSelect').injectInside(document.body);
		$('TB_HideSelect').setOpacity(0);
		new Element('div').setProperty('id', 'TB_overlay').injectInside(document.body);
		$('TB_overlay').setOpacity(0);
		TB_overlaySize();
		new Element('div').setProperty('id', 'TB_load').injectInside(document.body);
		$('TB_load').innerHTML = "<img src='css/gfx/loading.gif' />";
		TB_load_position();
		new Fx.Style('TB_overlay', 'opacity',{duration: 400, transition: Fx.Transitions.sineInOut}).start(0,0.6);

	}
	
	if ( !$("TB_load") )
	{		
		new Element('div').setProperty('id', 'TB_load').injectInside(document.body);
		$('TB_load').innerHTML = "<img src='loading.gif' />";
		TB_load_position();
	}
	
	if ( !$("TB_window") )
	{
		new Element('div').setProperty('id', 'TB_window').injectInside(document.body);
		$('TB_window').setOpacity(0);

	}
	

	$("TB_overlay").onclick=TB_remove;
	window.onscroll=TB_positionEffect;

	// 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 = /\.(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.smoothbox").each(function(el){
				if (el.rel==rel) {imageGroup[imageGroup.length] = el ;}

			})

			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 x = window.getWidth() - 150;
			var y = window.getHeight() - 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").innerHTML += "<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").onclick = TB_remove;
			
			function buildClickHandler(image) {
				return function() {
					$("TB_window").remove();
					new Element('div').setProperty('id', 'TB_window').injectInside(document.body);
					
					TB_show(image.caption, image.url, rel);
					return false;
				};
			}
			var goPrev = buildClickHandler(prev);
			var goNext = buildClickHandler(next);
			if ( $('TB_prev') ) {
				$("TB_prev").onclick = goPrev;
			}
			
			if ( $('TB_next') ) {		
				$("TB_next").onclick = goNext;
			}
			
			document.onkeydown = function(event) {
				var event = new Event(event);
				switch(event.code) {
				case 27:
					TB_remove();
					break;
				case 190:
					if( $('TB_next') ) {
						document.onkeydown = null;
						goNext();
					}
					break;
				case 188:
					if( $('TB_prev') ) {
						document.onkeydown = null;
						goPrev();
					}
					break;
				}
			}
			
			// TODO don't remove loader etc., just hide and show later
			$("TB_ImageOff").onclick = TB_remove;
			TB_position();
			TB_showWindow();
		}
		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_');
			
				//NJN commented out for the fix below.
				//$("TB_window").innerHTML += "<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_showWindow()'> </iframe>";

				//NJN: HULK SMASH!
				//Brute forcing this to the right target fixes the Safari reload bug.  
				//This would force a double load, so I'll point it at a 1x1 image called nothing.gif in my css gfx folder
				//This is an ugly, ugly hack, but iframe.src DOES EQUAL THE RIGHT THING.  Safari just refuses to render it.
				$("TB_window").innerHTML += "<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='css/gfx/nothing.gif' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showWindow()'> </iframe>";
				$("TB_iframeContent").src = urlNoQuery;
				//NJN end fix.  Those 2 lines of code only took a few hours of figuring out how to make safari happy.  

			
		} else {
			$("TB_window").innerHTML += "<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").onclick = TB_remove;
		
			if(url.indexOf('TB_inline') != -1){	
				$("TB_ajaxContent").innerHTML = ($(params['inlineId']).innerHTML);
				TB_position();
				TB_showWindow();
				
			}else if(url.indexOf('TB_iframe') != -1){
				TB_position();
				//NJN: Progress bar doesn't show in the window because onload doesn't 
				//fire until after the flash file loads.  I think.  Calling it here to fix
				//that.
				 TB_showWindow();
				
				
				//NJN: Does this code ever run?  
				if(frames['TB_iframeContent'] == undefined){//be nice to safari
					$(document).keyup( function(e){ var key = e.keyCode; if(key == 27){TB_remove()} });
					document.getElementById('debug').innerHTML = document.getElementById('debug').innerHTML + 'showing window' + '<br>';
					TB_showWindow();
				}
				
			}else{
				var handlerFunc = function(){
					TB_position();
					TB_showWindow();
				};
				var myRequest = new Ajax(url, {method: 'get',update: $("TB_ajaxContent"),onComplete: handlerFunc}).request();
			}
	}

	window.onresize=function(){ TB_position(); TB_load_position(); TB_overlaySize();}  
	
	document.onkeyup = function(event){ 	
		var event = new Event(event);
		if(event.code == 27){ // close
			TB_remove();
		}	
	}
		
}

//helper functions below

function TB_showWindow(){
	//$("TB_load").remove();
	//$("TB_window").setStyles({display:"block",opacity:'0'});
	
	if (TB_doneOnce==0) {
		TB_doneOnce = 1;
		var myFX = new Fx.Style('TB_window', 'opacity',{duration: 250, transition: Fx.Transitions.sineInOut, onComplete:function(){if ($('TB_load')) { $('TB_load').remove();}} }).start(0,1);
	} else {
		$('TB_window').setStyle('opacity',1);
		if ($('TB_load')) { $('TB_load').remove();}

	}
}

function TB_remove() {
 	$("TB_overlay").onclick=null;
	document.onkeyup=null;
	document.onkeydown=null;
	
	if ($('TB_imageOff')) $("TB_imageOff").onclick=null;
	if ($('TB_closeWindowButton')) $("TB_closeWindowButton").onclick=null;
	if ( $('TB_prev') ) { $("TB_prev").onclick = null; }
	if ( $('TB_next') ) { $("TB_next").onclick = null; }

	new Fx.Style('TB_window', 'opacity',{duration: 250, transition: Fx.Transitions.sineInOut, onComplete:function(){$('TB_window').remove();} }).start(1,0);
	new Fx.Style('TB_overlay', 'opacity',{duration: 400, transition: Fx.Transitions.sineInOut, onComplete:function(){$('TB_overlay').remove();} }).start(0.6,0);

	window.onscroll=null;
	window.onresize=null;	
	
	$('TB_HideSelect').remove();
	
	//NJN: This 1 line below should fix the clicking the link like a wild monkey problem	
	//(It was possible to trigger TB_remove before triggering TB_showWindow.)
	if ($('TB_load')) { $('TB_load').remove();}

	TB_init();
	TB_doneOnce = 0;
	return false;
}

function TB_position() {
	$("TB_window").setStyles({width: TB_WIDTH+'px', 
				 left: (window.getScrollLeft() + (window.getWidth() - TB_WIDTH)/2)+'px',
				 top: (window.getScrollTop() + (window.getHeight() - TB_HEIGHT)/2)+'px'});
}

function TB_positionEffect() {
	new Fx.Styles('TB_window', {duration: 75, transition: Fx.Transitions.sineInOut}).start({
		'left':(window.getScrollLeft() + (window.getWidth() - TB_WIDTH)/2)+'px',
		'top':(window.getScrollTop() + (window.getHeight() - TB_HEIGHT)/2)+'px'});
}

function TB_overlaySize(){
	// we have to set this to 0px before so we can reduce the size / width of the overflow onresize 
	$("TB_overlay").setStyles({"height": '0px', "width": '0px'});
	$("TB_HideSelect").setStyles({"height": '0px', "width": '0px'});
	$("TB_overlay").setStyles({"height": window.getScrollHeight()+'px', "width": window.getScrollWidth()+'px'});
	$("TB_HideSelect").setStyles({"height": window.getScrollHeight()+'px',"width": window.getScrollWidth()+'px'});
}

function TB_load_position() {
	if ($("TB_load")) { $("TB_load").setStyles({left: (window.getScrollLeft() + (window.getWidth() - 56)/2)+'px', top: (window.getScrollTop() + ((window.getHeight()-20)/2))+'px',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;
}