/*
* Copyright (C) 2009 Joel Sutherland
* Licenced under the MIT license
* http://www.newmediacampaigns.com/page/jcaption-a-jquery-plugin-for-simple-image-captions
*/
(function($) {
	$.fn.jcaption = function(settings) {
		settings = $.extend({
			wrapperElement: 'div',
			wrapperClass: 'caption',
			captionElement: 'p',
			imageAttr: 'alt',
			copyStyle: false,
			removeStyle: true,
			removeAlign: true,
			copyAlignmentToClass: false,
			copyFloatToClass: true,
			autoWidth: true,
			animate: false,
			show: {opacity: 'show'},
			showDuration: 200,
			hide: {opacity: 'hide'},
			hideDuration: 200	
		}, settings);

		$(this).each(function(){
			//Only add the caption after the image has been loaded.  This makes sure we can know the width of the caption.
			
			$(this).bind('load', function(){
				
				//Make sure the captioning isn't applied twice when the IE fix at the bottom is applied
				//if($(this).data('loaded')) return false;
				//$(this).data('loaded', true);
				
				if ( $(this).context.title == "" ) {
					$(this).parent('div').find('p').remove();
				} else {
					if ( $(this).parent('div').find('p').length > 0 ) return false;
					//$(this).parent('div').parent('div').find('p').remove();
					//$(this).parent('div').find('p').remove();
				//}
			
					//Shorthand for the image we will be applying the caption to
					var image = $(this);
				
					//Only create captions if there is content for the caption
					if(image.attr(settings.imageAttr).length > 0){
					
						//Wrap the image with the caption div
						image.wrap("<" + settings.wrapperElement + " class='" + settings.wrapperClass + "'></" + settings.wrapperElement + ">");
					
						//Save Image Float
						var imageFloat = image.css('float')
					
						//Save Image Style
						var imageStyle = image.attr('style');
						if(settings.removeStyle) image.removeAttr('style');
					
						//Save Image Align
						var imageAlign = image.attr('align');
						if(settings.removeAlign) image.removeAttr('align');
					
						//Put Caption in the Wrapper Div
						var div = $(this).parent().append('<' + settings.captionElement + '>' + image.attr(settings.imageAttr) + '</' + settings.captionElement + '>');
					
						if(settings.animate){
							$(this).next().hide();
							$(this).parent().hover(
							function(){
								$(this).find('p').animate(settings.show, settings.showDuration);
							},
							function(){
								$(this).find('p').animate(settings.hide, settings.hideDuration);
							});
						}
					
						//Copy Image Style to Div
						if(settings.copyStyle) div.attr('style',imageStyle);
					
						//If there is an alignment on the image (for example align="left") add "left" as a class on the caption.  This helps deal with older Text Editors like TinyMCE
						if(settings.copyAlignmentToClass) div.addClass(imageAlign);
					
						//Transfers the float style from the image to the caption container
						if(settings.copyFloatToClass) div.addClass(imageFloat);
					
						//Properly size the caption div based on the loaded image's size
						if(settings.autoWidth) div.width(image.width());
					}
				}
			});
			
			// Thanks to Captify for this bit!
			//if the image has already loaded (due to being cached), force the load function to be called
			if (this.complete || this.naturalWidth > 0){
				$(this).trigger('load');
			}
		});
	}
})(jQuery);