ÿþ/**

 * Galleria (http://monc.se/kitchen)

 *

 * Galleria is a javascript image gallery written in jQuery. 

 * It loads the images one by one from an unordered list and displays thumbnails when each image is loaded. 

 * It will create thumbnails for you if you choose so, scaled or unscaled, 

 * centered and cropped inside a fixed thumbnail box defined by CSS.

 * 

 * The core of Galleria lies in it's smart preloading behaviour, snappiness and the fresh absence 

 * of obtrusive design elements. Use it as a foundation for your custom styled image gallery.

 *

 * MAJOR CHANGES v.FROM 0.9

 * Galleria now features a useful history extension, enabling back button and bookmarking for each image.

 * The main image is no longer stored inside each list item, instead it is placed inside a container

 * onImage and onThumb functions lets you customize the behaviours of the images on the site

 *

 * Tested in Safari 3, Firefox 2, MSIE 6, MSIE 7, Opera 9

 * 

 * Version 1.0

 * Februari 21, 2008

 *

 * Copyright (c) 2008 David Hellsing (http://monc.se)

 * Licensed under the GPL licenses.

 * http://www.gnu.org/licenses/gpl.txt

 **/



(function($){



var $$;





/**

 * 

 * @desc Convert images from a simple html <ul> into a thumbnail gallery

 * @author David Hellsing

 * @version 1.0

 *

 * @name Galleria

 * @type jQuery

 *

 * @cat plugins/Media

 * 

 * @example $('ul.gallery').galleria({options});

 * @desc Create a a gallery from an unordered list of images with thumbnails

 * @options

 *   insert:   (selector string) by default, Galleria will create a container div before your ul that holds the image.

 *             You can, however, specify a selector where the image will be placed instead (f.ex '#main_img')

 *   history:  Boolean for setting the history object in action with enabled back button, bookmarking etc.

 *   onImage:  (function) a function that gets fired when the image is displayed and brings the jQuery image object.

 *             You can use it to add click functionality and effects.

 *             f.ex onImage(image) { image.css('display','none').fadeIn(); } will fadeIn each image that is displayed

 *   onThumb:  (function) a function that gets fired when the thumbnail is displayed and brings the jQuery thumb object.

 *             Works the same as onImage except it targets the thumbnail after it's loaded.

 *

**/



$$ = $.fn.galleria = function($options) {

	

	// check for basic CSS support

	if (!$$.hasCSS()) { return false; }

	

	// init the modified history object

	$.historyInit($$.onPageLoad);

	

	// set default options

	var $defaults = {

		insert      : '.galleria_container',

		history     : true,

		clickNext   : true,

		onImage     : function(image,caption,thumb) {},

		onThumb     : function(thumb) {}

	};

	



	// extend the options

	var $opts = $.extend($defaults, $options);

	

	// bring the options to the galleria object

	for (var i in $opts) {

		if (i) {

			$.galleria[i]  = $opts[i];

		}

	}

	

	// if no insert selector, create a new division and insert it before the ul

	var _insert = ( $($opts.insert).is($opts.insert) ) ? 

		$($opts.insert) : 

		jQuery(document.createElement('div')).insertBefore(this);

		

	// create a wrapping div for the image

	var _div = $(document.createElement('div')).addClass('galleria_wrapper');

	

	// create a caption span

	var _span = $(document.createElement('span')).addClass('caption');

	

	// inject the wrapper in in the insert selector

	_insert.addClass('galleria_container').append(_div).append(_span);

	

	//-------------

	

	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;

			

			// remove the clickNext if image is only child

			_o.clickNext = $(this).is(':only-child') ? false : _o.clickNext;

			

			// try to fetch an anchor

			var _a = $(this).find('a[rel=img]').is('a') ? $(this).find('a[rel=img]') : 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');

			

			// find a title

			var _title = _a ? _a.attr('title') : _img.attr('title');

			

			// create loader image            

			var _loader = new Image();

			

			// check url and activate container if match

			if (_o.history && (window.location.hash && window.location.hash.replace(/\#/,'') == _src)) {

				_container.siblings('.active').removeClass('active');

				_container.addClass('active');

			}

		

			// 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: -(h-_container.height())/2 });

					} else {

						_thumb.css({ width: 'auto', height: _container.height(), marginLeft: -(w-_container.width())/2 });

					}

				} else { // Center thumbnails.

					// a tiny timer fixed the width/height

					window.setTimeout(function() {

					    if (_thumb.width() / _thumb.height() < 1.33) {

        					_thumb.css({marginLeft: -( _thumb.width() - _container.width() )/2});

    					} else {

 						    _thumb.css({

							    marginLeft: -( _thumb.width() - _container.width() )/2, 

							    marginTop:  -( _thumb.height() - _container.height() )/2

    						});

   					    }

					}, 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() {

					$.galleria.activate(_src);

				});

				

				// 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));

				

				// check active class and activate image if match

				if (_container.hasClass('active')) {

					$.galleria.activate(_src);

					//_span.text(_title);

				}

				

				//-----------------------------------------------------------------

				

				// 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);

		});

	});

};



/**

 *

 * @name NextSelector

 *

 * @desc Returns the sibling sibling, or the first one

 *

**/



$$.nextSelector = function(selector) {

	return $(selector).is(':last-child') ?

		   $(selector).siblings(':first-child') :

    	   $(selector).next();

    	   

};



/**

 *

 * @name previousSelector

 *

 * @desc Returns the previous sibling, or the last one

 *

**/



$$.previousSelector = function(selector) {

	return $(selector).is(':first-child') ?

		   $(selector).siblings(':last-child') :

    	   $(selector).prev();

    	   

};



/**

 *

 * @name hasCSS

 *

 * @desc Checks for CSS support and returns a boolean value

 *

**/



$$.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;

};



/**

 *

 * @name onPageLoad

 *

 * @desc The function that displays the image and alters the active classes

 *

 * Note: This function gets called when:

 * 1. after calling $.historyInit();

 * 2. after calling $.historyLoad();

 * 3. after pushing "Go Back" button of a browser

 *

**/



$$.onPageLoad = function(_src) {	

	

	// get the wrapper

	var _wrapper = $('.galleria_wrapper');

	

	// get the thumb

	var _thumb = $('.galleria img[rel="'+_src+'"]');

	

	if (_src) {

		

		// new hash location

		if ($.galleria.history) {

			window.location = window.location.href.replace(/\#.*/,'') + '#' + _src;

		}

		

		// alter the active classes

		_thumb.parents('li').siblings('.active').removeClass('active');

		_thumb.parents('li').addClass('active');

	

		// define a new image

		var _img   = $(new Image()).attr('src',_src).addClass('replaced');



		// empty the wrapper and insert the new image

		_wrapper.empty().append(_img);



		// insert the caption

		_wrapper.siblings('.caption').text(_thumb.attr('title'));

		

		// fire the onImage function to customize the loaded image's features

		$.galleria.onImage(_img,_wrapper.siblings('.caption'),_thumb);

		

		// add clickable image helper

		if($.galleria.clickNext) {

			_img.css('cursor','pointer').click(function() { $.galleria.next(); });

		}

		

	} else {

		

		// clean up the container if none are active

		_wrapper.siblings().andSelf().empty();

		

		// remove active classes

		$('.galleria li.active').removeClass('active');

	}



	// place the source in the galleria.current variable

	$.galleria.current = _src;

	

};



/**

 *

 * @name jQuery.galleria

 *

 * @desc The global galleria object holds four constant variables and four public methods:

 *       $.galleria.history = a boolean for setting the history object in action with named URLs

 *       $.galleria.current = is the current source that's being viewed.

 *       $.galleria.clickNext = boolean helper for adding a clickable image that leads to the next one in line

 *       $.galleria.next() = displays the next image in line, returns to first image after the last.

 *       $.galleria.prev() = displays the previous image in line, returns to last image after the first.

 *       $.galleria.activate(_src) = displays an image from _src in the galleria container.

 *       $.galleria.onImage(image,caption) = gets fired when the image is displayed.

 *

**/



$.extend({galleria : {

	current : '',

	onImage : function(){},

	activate : function(_src) { 

		if ($.galleria.history) {

			$.historyLoad(_src);

		} else {

			$$.onPageLoad(_src);

		}

	},

	next : function() {

		var _next = $($$.nextSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');

		$.galleria.activate(_next);

	},

	prev : function() {

		var _prev = $($$.previousSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');

		$.galleria.activate(_prev);

	}

}

});



})(jQuery);





/* history.js */

/*

* jQuery history plugin

* 

* The MIT License

* 

* Copyright (c) 2006-2009 Taku Sano (Mikage Sawatari)

* Copyright (c) 2010 Takayuki Miwa

* 

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

* 

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

* 

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

* THE SOFTWARE.

*/



(function ($) {

    var locationWrapper = {

        put: function (hash, win) {

            (win || window).location.hash = this.encoder(hash);

        },

        get: function (win) {

            var hash = ((win || window).location.hash).replace(/^#/, '');

            try {

                return $.browser.mozilla ? hash : decodeURIComponent(hash);

            }

            catch (error) {

                return hash;

            }

        },

        encoder: encodeURIComponent

    };



    var iframeWrapper = {

        id: "__jQuery_history",

        init: function () {

            var html = '<iframe id="' + this.id + '" style="display:none" src="javascript:false;" />';

            $("body").prepend(html);

            return this;

        },

        _document: function () {

            return $("#" + this.id)[0].contentWindow.document;

        },

        put: function (hash) {

            var doc = this._document();

            doc.open();

            doc.close();

            locationWrapper.put(hash, doc);

        },

        get: function () {

            return locationWrapper.get(this._document());

        }

    };



    function initObjects(options) {

        options = $.extend({

            unescape: false

        }, options || {});



        locationWrapper.encoder = encoder(options.unescape);



        function encoder(unescape_) {

            if (unescape_ === true) {

                return function (hash) { return hash; };

            }

            if (typeof unescape_ == "string" &&

               (unescape_ = partialDecoder(unescape_.split("")))

               || typeof unescape_ == "function") {

                return function (hash) { return unescape_(encodeURIComponent(hash)); };

            }

            return encodeURIComponent;

        }



        function partialDecoder(chars) {

            var re = new RegExp($.map(chars, encodeURIComponent).join("|"), "ig");

            return function (enc) { return enc.replace(re, decodeURIComponent); };

        }

    }



    var implementations = {};



    implementations.base = {

        callback: undefined,

        type: undefined,



        check: function () { },

        load: function (hash) { },

        init: function (callback, options) {

            initObjects(options);

            self.callback = callback;

            self._options = options;

            self._init();

        },



        _init: function () { },

        _options: {}

    };



    implementations.timer = {

        _appState: undefined,

        _init: function () {

            var current_hash = locationWrapper.get();

            self._appState = current_hash;

            self.callback(current_hash);

            setInterval(self.check, 100);

        },

        check: function () {

            var current_hash = locationWrapper.get();

            if (current_hash != self._appState) {

                self._appState = current_hash;

                self.callback(current_hash);

            }

        },

        load: function (hash) {

            if (hash != self._appState) {

                locationWrapper.put(hash);

                self._appState = hash;

                self.callback(hash);

            }

        }

    };



    implementations.iframeTimer = {

        _appState: undefined,

        _init: function () {

            var current_hash = locationWrapper.get();

            self._appState = current_hash;

            iframeWrapper.init().put(current_hash);

            self.callback(current_hash);

            setInterval(self.check, 100);

        },

        check: function () {

            var iframe_hash = iframeWrapper.get(),

                location_hash = locationWrapper.get();



            if (location_hash != iframe_hash) {

                if (location_hash == self._appState) {    // user used Back or Forward button

                    self._appState = iframe_hash;

                    locationWrapper.put(iframe_hash);

                    self.callback(iframe_hash);

                } else {                              // user loaded new bookmark

                    self._appState = location_hash;

                    iframeWrapper.put(location_hash);

                    self.callback(location_hash);

                }

            }

        },

        load: function (hash) {

            if (hash != self._appState) {

                locationWrapper.put(hash);

                iframeWrapper.put(hash);

                self._appState = hash;

                self.callback(hash);

            }

        }

    };



    implementations.hashchangeEvent = {

        _init: function () {

            self.callback(locationWrapper.get());

            $(window).bind('hashchange', self.check);

        },

        check: function () {

            self.callback(locationWrapper.get());

        },

        load: function (hash) {

            locationWrapper.put(hash);

        }

    };



    var self = $.extend({}, implementations.base);



    if ($.browser.msie && ($.browser.version < 8 || document.documentMode < 8)) {

        self.type = 'iframeTimer';

    } else if ("onhashchange" in window) {

        self.type = 'hashchangeEvent';

    } else {

        self.type = 'timer';

    }



    $.extend(self, implementations[self.type]);

    $.history = self;

})(jQuery);