/**
 * jQuery Lightbox Plugin (balupton edition) - Lightboxes for jQuery
 * Copyright (C) 2008 Benjamin Arthur Lupton
 * http://jquery.com/plugins/project/jquerylightbox_bal
 *
 * This file is part of jQuery Lightbox (balupton edition).
 * 
 * jQuery Lightbox (balupton edition) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * jQuery Lightbox (balupton edition) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with jQuery Lightbox (balupton edition).  If not, see <http://www.gnu.org/licenses/>.
 *
 * @name jquery_lightbox: jquery.lightbox.js
 * @package jQuery Lightbox Plugin (balupton edition)
 * @version 1.3.0-rc1
 * @date August 24, 2008
 * @category jQuery plugin
 * @author Benjamin "balupton" Lupton {@link http://www.balupton.com}
 * @copyright (c) 2008 Benjamin Arthur Lupton {@link http://www.balupton.com}
 * @license GNU Affero General Public License - {@link http://www.gnu.org/licenses/agpl.html}
 * @example Visit {@link http://jquery.com/plugins/project/jquerylightbox_bal} for more information.
 */

// Start of our jQuery Plugin
(function($)
{	// Create our Plugin function, with $ as the argument (we pass the jQuery object over later)
	// More info: http://docs.jquery.com/Plugins/Authoring#Custom_Alias
	
	// Debug
	$.log = $.log || function ( options )
	{	// Can we debug? - Do we have firebug
		var con = null;
		if ( typeof console !== 'undefined' && typeof $.log !== 'undefined' )
		{	con = console;	}
		else if ( typeof window.console !== 'undefined' && typeof window.$.log !== 'undefined')
		{	con = window.console;	}
		
		// Do the log
		if ( con )
		{	// Do we support arguments?
			if ( typeof arguments !== 'undefined' && arguments.length > 1)
			{	con.log(arguments);	return arguments;	}
			else
			{	con.log(options);	return options;		}
		}
	};
	
	// Pre-Req
	$.params_to_json = $.params_to_json || function ( params )
	{	// Turns a params string or url into an array of params
		// Adjust
		params = String(params);
		// Remove url if need be
		params = params.substring(params.indexOf('?')+1);
		// params = params.substring(params.indexOf('#')+1);
		// Change + to %20, the %20 is fixed up later with the decode
		params = params.replace(/\+/g, '%20');
		// Do we have JSON string
		if ( params.substring(0,1) === '{' && params.substring(params.length-1) === '}' )
		{	// We have a JSON string
			return eval(decodeURIComponent(params));
		}
		// We have a params string
		params = params.split(/\&|\&amp\;/);
		var json = {};
		// We have params
		for ( var i = 0, n = params.length; i < n; ++i )
		{
			// Adjust
			var param = params[i] || null;
			if ( param === null ) { continue; }
			param = param.split('=');
			if ( param === null ) { continue; }
			// ^ We now have "var=blah" into ["var","blah"]
			
			// Get
			var key = param[0] || null;
			if ( key === null ) { continue; }
			if ( typeof param[1] === 'undefined' ) { continue; }
			var value = param[1];
			// ^ We now have the parts
			
			// Fix
			key = decodeURIComponent(key);
			value = decodeURIComponent(value);
			try {
			    // value can be converted
			    value = eval(value);
			} catch ( e ) {
			    // value is a normal string
			}
			
			// Set
			// console.log({'key':key,'value':value}, split);
			var keys = key.split('.');
			if ( keys.length === 1 )
			{	// Simple
				json[key] = value;
			}
			else
			{	// Advanced
				var path = '';
				for ( ii in keys )
				{	//
					key = keys[ii];
					path += '.'+key;
					eval('json'+path+' = json'+path+' || {}');
				}
				eval('json'+path+' = value');
			}
			// ^ We now have the parts added to your JSON object
		}
		return json;
	};
	
	// Declare our class
	$.LightboxClass = function ( )
	{	// This is the handler for our constructor
		this.construct();
	};

	// Extend jQuery elements for Lightbox
	$.fn.lightbox = function ( options )
	{	// Init a el for Lightbox
		// Eg. $('#gallery a').lightbox();
		
		// If need be: Instantiate $.LightboxClass to $.Lightbox
		$.Lightbox = $.Lightbox || new $.LightboxClass();
		
		// Handle IE6 appropriatly
		if ( $.Lightbox.ie6 && !$.Lightbox.ie6_support )
		{	// We are IE6 and we want to ignore
			return this; // chain
		}
		
		// Establish options
		options = $.extend({start:false,events:true} /* default options */, options);
		
		// Get group
		var group = $(this);
		
		// Events?
		if ( options.events )
		{	// Add events
			$(group).unbind().click(function(){
				// Get obj
				var obj = $(this);
				// Get rel
				// var rel = $(obj).attr('rel');
				// Init group
				if ( !$.Lightbox.init($(obj)[0], group) )
				{	return false;	}
				// Display lightbox
				if ( !$.Lightbox.start() )
				{	return false;	}
				// Cancel href
				return false;
			});
			// Add style
			$(group).addClass('lightbox-enabled');
		}
		
		// Start?
		if ( options.start )
		{	// Start
			// Get obj
			var obj = $(this);
			// Get rel
			// var rel = $(obj).attr('rel');
			// Init group
			if ( !$.Lightbox.init($(obj)[0], group) )
			{	return this;	}
			// Display lightbox
			if ( !$.Lightbox.start() )
			{	return this;	}
		}
		
		// And chain
		return this;
	};
	
	// Define our class
	$.extend($.LightboxClass.prototype,
	{	// Our LightboxClass definition
		
		// -----------------
		// Everyting to do with images
		
		images: {
			
			// -----------------
			// Variables
			
			// Our array of images
			list:[], /* [ {
				src: 'url to image',
				link: 'a link to a page',
				title: 'title of the image',
				name: 'name of the image',
				description: 'description of the image'
			} ], */
			
			// The current active image
			image: false,
			
			// -----------------
			// Functions
			
			prev: function ( image )
			{	// Get previous image
				
				// Get previous from current?
				if ( typeof image === 'undefined' )
				{	image = this.active();
					if ( !image ) { return image; }
				}
				
				// Is there a previous?
				if ( this.first(image) )
				{	return false;	}
				
				// Get the previous
				return this.get(image.index-1);
			},
			
			next: function ( image )
			{	// Get next image
				
				// Get next from current?
				if ( typeof image === 'undefined' )
				{	image = this.active();
					if ( !image ) { return image; }
				}
				
				// Is there a next?
				if ( this.last(image) )
				{	return false;	}
				
				// Get the next
				return this.get(image.index+1);
			},
			
			first: function ( image )
			{	//
				// Get the first image?
				if ( typeof image === 'undefined' )
				{	return this.get(0);	}
				
				// Are we the first?
				return image.index === 0;
			},
			
			last: function ( image )
			{	//
				// Get the last image?
				if ( typeof image === 'undefined' )
				{	return this.get(this.size()-1);	}
				
				// Are we the last?
				return image.index === this.size()-1;
			},
		
			single: function ( )
			{	// Are we only one
				return this.size() === 1;
			},
			
			size: function ( )
			{	// How many images do we have
				return this.list.length;
			},
			
			empty: function ( )
			{	// Are we empty
				return this.size() === 0;
			},
			
			clear: function ( )
			{	// Clear image arrray
				this.list = [];
				this.image = false;
			},
		
			active: function ( image )
			{	// Set or get the active image
				// Use false to reset
				
				// Get the active image?
				if ( typeof image === 'undefined' )
				{	return this.image;	}
				
				// Set the ative image
				if ( image !== false )
				{	// Make sure image exists
					image = this.get(image);
					if ( !image )
					{	// Error
						return image;
					}
				}
				
				// Set the active image
				this.image = image;
				return true;
			},
		
			add: function ( obj )
			{
				// Do we need to recurse?
				if ( obj[0] )
				{	// We have a lot of images
					for ( var i = 0; i < obj.length; i++ )
					{	this.add(obj[i]);	}
					return true;
				}
				
				// Default image
				
				// Try and create a image
				var image = this.create(obj);
				if ( !image ) { return image; }
				
				// Set image index
				image.index = this.size();
				
				// Push image
				this.list.push(image);
				
				// Success
				return true;
			},
			
			create: function ( obj )
			{	// Create image
				
				// Define
				var image = { // default
					src:	'',
					title:	'Untitled',
					description:	'',
					name:	'',
					index:	-1,
					color:	null,
					width:	null,
					height:	null,
					image:	true
				};
				
				// Create
				if ( obj.image )
				{	// Already a image, so copy over values
					image.src = obj.src || image.src;
					image.title = obj.title || image.title;
					image.description = obj.description || image.description;
					image.name = obj.name || image.name;
					image.color = obj.color || image.color;
					image.width = obj.width || image.width;
					image.height = obj.height || image.height;
					image.index = obj.index || image.index;
				}
				else if ( obj.tagName )
				{	// We are an element
					obj = $(obj);
					if ( obj.attr('src') || obj.attr('href') )
					{
						image.src = obj.attr('src') || obj.attr('href');
						image.title = obj.attr('title') || obj.attr('alt') || image.title;
						image.name = obj.attr('name') || '';
						image.color = obj.css('background-color');
						// Extract description from title
						var s = image.title.indexOf(': ');
						if ( s > 0 )
						{	// Description exists
							image.description = image.title.substring(s+2) || image.description;
							image.title = image.title.substring(0,s) || image.title;
						}
					}
					else
					{	// Unsupported element
						image = false;
					}
				}
				else
				{	// Unknown
					image = false;
				}
				
				if ( !image )
				{	// Error
					$.log('ERROR', 'We dont know what we have:', obj);
					return false;
				}
				
				// Success
				return image;
			},
			
			get: function ( image )
			{	// Get the active, or specified image
				
				// Establish image
				if ( typeof image === 'undefined' || image === null )
				{	// Get the active image
					return this.active();
				}
				else
				if ( typeof image === 'number' )
				{	// We have a index
					
					// Get image
					image = this.list[image] || false;
				}
				else
				{	// Create
					image = this.create(image);
					if ( !image ) { return false; }
					
					// Find
					var f = false;
					for ( var i = 0; i < this.size(); i++ )
					{
						var c = this.list[i];
						if ( c.src === image.src && c.title === image.title && c.description === image.description )
						{	f = c;	}
					}
					
					// Found?
					image = f;
				}
				
				// Determine image
				if ( !image )
				{	// Image doesn't exist
					$.log('ERROR', 'The desired image doesn\'t exist: ', image, this.list);
					return false;
				}
				
				// Return image
				return image;
			},
			
			debug: function ( )
			{
				return $.Lightbox.debug(arguments);
			}
			
		},
		
		// -----------------
		// Options
		
		constructed:		false,
		
		src:				null,		// the source location of our js file
		baseurl:			null,
		
		files: {
			// If you are doing a repack with packer (http://dean.edwards.name/packer/) then append ".packed" onto the js and css files before you pack it.
			js: {
				lightbox:	'includes/lightbox.js',
				colorBlend:	'includes/colorBlend.js'
			},
			css: {
				lightbox:	'includes/lightbox.css'
			},
			images: {
				prev:		'images/prev.gif',
				next:		'images/next.gif',
				blank:		'images/blank.gif',
				loading:	'images/loading.gif'
			}
		},
		
		text: {
			// For translating
			image:		'Image',
			of:			'of',
			close:		'Close X',
			closeInfo:	'You can also click anywhere outside the image to close.',
			help: {