/**
 * Galleria (http://monc.se/kitchen)
 * Copyright (c) 2008 David Hellsing (http://monc.se)
 * Licensed under the GPL licenses.
 **/

;(function($){

var $$;

$$ = $.fn.galleria = function($options) {
	
	if (!$$.hasCSS()) { return false; }
	
	var $defaults = {
		insert      : '.galleria_container',
		onImage     : function(image,caption,description,thumb) {},
		onThumb     : function(thumb) {}
	};
	
	// extend the options
	var $opts = $.extend($defaults, $options);
	
	// bring the options to the galleria object
	for (var i in $opts) {
		$.galleria[i]  = $opts[i];
	}
	
	return this.each(function(){
		
		// add the Galleria class
		$(this).addClass('galleria');
		
		// loop through list
		$(this).children('li').each(function(i) {
			
			// bring the scope
			var _container = $(this);
			                
			// build element specific options
			var _o = $.meta ? $.extend({}, $opts, _container.data()) : $opts;
			
			// try to fetch an anchor
			var _a = $(this).find('a').is('a') ? $(this).find('a') : false;
			
			// reference the original image as a variable and hide it
			var _img = $(this).children('img').css('display','none');
			
			// extract the original source
			var _src = _a ? _a.attr('href') : _img.attr('src');

			// extract the page
			var _page = _img.attr('page');
			
			// find a title
			var _title = _a ? _a.attr('title') : _img.attr('title');

			// create loader image            
			var _loader = new Image();
			
			// begin loader
			$(_loader).load(function () {
				
				// try to bring the alt
				$(this).attr('alt',_img.attr('alt'));
				
				//-----------------------------------------------------------------
				// the image is loaded, let's create the thumbnail
				
				var _thumb = _a ? 
					_a.find('img').addClass('thumb noscale').css('display','none') :
					_img.clone(true).addClass('thumb').css('display','none');
				
				if (_a) { _a.replaceWith(_thumb); }
				
				if (!_thumb.hasClass('noscale')) { // scaled tumbnails!
					var w = Math.ceil( _img.width() / _img.height() * _container.height() );
					var h = Math.ceil( _img.height() / _img.width() * _container.width() );
					if (w < h) {
						_thumb.css({ height: 'auto', width: _container.width(), marginTop: 0 });
					} else {
						_thumb.css({ width: 'auto', height: _container.height(), marginLeft: 0 });
					}
				} else { 
					window.setTimeout(function() {
						_thumb.css({
							marginLeft: 0, 
							marginTop: 0
						});
					}, 1);
				}
				
				// add the rel attribute
				_thumb.attr('rel',_src);
				
				// add the title attribute
				_thumb.attr('title',_title);
				
				// add the click functionality to the _thumb
				_thumb.click(function() {
			                window.location = window.location.href.replace(/\?.*/,'') + "?p=" +_page;
				});
				
				// hover classes for IE6
				_thumb.hover(
					function() { $(this).addClass('hover'); },
					function() { $(this).removeClass('hover'); }
				);
				_container.hover(
					function() { _container.addClass('hover'); },
					function() { _container.removeClass('hover'); }
				);

				// prepend the thumbnail in the container
				_container.prepend(_thumb);
				
				// show the thumbnail
				_thumb.css('display','block');
				
				// call the onThumb function
				_o.onThumb(jQuery(_thumb));
				
				//-----------------------------------------------------------------
				
				// finally delete the original image
				_img.remove();
				
			}).error(function () {
				
				// Error handling
			    _container.html('<span class="error" style="color:red">Error loading image: '+_src+'</span>');
			
			}).attr('src', _src);
		});
	});
};

$$.hasCSS = function()  {
	$('body').append(
		$(document.createElement('div')).attr('id','css_test')
		.css({ width:'1px', height:'1px', display:'none' })
	);
	var _v = ($('#css_test').width() != 1) ? false : true;
	$('#css_test').remove();
	return _v;
};


$.extend({galleria : {
	current : '',
	onImage : function(){},
}});

})(jQuery);


jQuery.extend({historyCurrentHash:undefined, historyCallback:undefined,historyInit:function(callback){jQuery.historyCallback=callback;var current_hash=location.hash;jQuery.historyCurrentHash=current_hash;if(jQuery.browser.msie){if(jQuery.historyCurrentHash==''){jQuery.historyCurrentHash='#'}$("body").prepend('<iframe id="jQuery_history" style="display: none;"></iframe>');var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentWindow.document;iframe.open();iframe.close();iframe.location.hash=current_hash}else if($.browser.safari){jQuery.historyBackStack=[];jQuery.historyBackStack.length=history.length;jQuery.historyForwardStack=[];jQuery.isFirst=true}jQuery.historyCallback(current_hash.replace(/^#/,''));setInterval(jQuery.historyCheck,100)},historyAddHistory:function(hash){jQuery.historyBackStack.push(hash);jQuery.historyForwardStack.length=0;this.isFirst=true},historyCheck:function(){if(jQuery.browser.msie){var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentDocument||ihistory.contentWindow.document;var current_hash=iframe.location.hash;if(current_hash!=jQuery.historyCurrentHash){location.hash=current_hash;jQuery.historyCurrentHash=current_hash;jQuery.historyCallback(current_hash.replace(/^#/,''))}}else if($.browser.safari){if(!jQuery.dontCheck){var historyDelta=history.length-jQuery.historyBackStack.length;if(historyDelta){jQuery.isFirst=false;if(historyDelta<0){for(var i=0;i<Math.abs(historyDelta);i++)jQuery.historyForwardStack.unshift(jQuery.historyBackStack.pop())}else{for(var i=0;i<historyDelta;i++)jQuery.historyBackStack.push(jQuery.historyForwardStack.shift())}var cachedHash=jQuery.historyBackStack[jQuery.historyBackStack.length-1];if(cachedHash!=undefined){jQuery.historyCurrentHash=location.hash;jQuery.historyCallback(cachedHash)}}else if(jQuery.historyBackStack[jQuery.historyBackStack.length-1]==undefined&&!jQuery.isFirst){if(document.URL.indexOf('#')>=0){jQuery.historyCallback(document.URL.split('#')[1])}else{var current_hash=location.hash;jQuery.historyCallback('')}jQuery.isFirst=true}}}else{var current_hash=location.hash;if(current_hash!=jQuery.historyCurrentHash){jQuery.historyCurrentHash=current_hash;jQuery.historyCallback(current_hash.replace(/^#/,''))}}},historyLoad:function(hash){var newhash;if(jQuery.browser.safari){newhash=hash}else{newhash='#'+hash;location.hash=newhash}jQuery.historyCurrentHash=newhash;if(jQuery.browser.msie){var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentWindow.document;iframe.open();iframe.close();iframe.location.hash=newhash;jQuery.historyCallback(hash)}else if(jQuery.browser.safari){jQuery.dontCheck=true;this.historyAddHistory(hash);var fn=function(){jQuery.dontCheck=false};window.setTimeout(fn,200);jQuery.historyCallback(hash);location.hash=newhash}else{jQuery.historyCallback(hash)}}});