official_website/js/lightcase.js

/*
 * Lightcase - jQuery Plugin
 * The smart and flexible Lightbox Plugin.
 *
 * @author		Cornel Boppart <cornel@bopp-art.com>
 * @copyright	Author
 *
 * @version		2.3.4 (29/12/2015)
 */

;(function ($) {

	'use strict';

	var _self = {
		cache: {},

		support: {},

		objects: {},

		/**
		 * Initializes the plugin
		 *
		 * @param	{object}	options
		 * @return	{object}
		 */
		init: function (options) {
			return this.each(function () {
				$(this).unbind('click.lightcase').bind('click.lightcase', function (event) {
					event.preventDefault();
					$(this).lightcase('start', options);
				});
			});
		},

		/**
		 * Starts the plugin
		 *
		 * @param	{object}	options
		 * @return	{void}
		 */
		start: function (options) {
			_self.origin = lightcase.origin = this;

			_self.settings = lightcase.settings = $.extend(true, {
				idPrefix: 'lightcase-',
				classPrefix: 'lightcase-',
				attrPrefix: 'lc-',
				transition: 'elastic',
				transitionIn: null,
				transitionOut: null,
				cssTransitions: true,
				speedIn: 250,
				speedOut: 250,
				maxWidth: 800,
				maxHeight: 500,
				forceWidth: false,
				forceHeight: false,
				liveResize: true,
				fullScreenModeForMobile: true,
				mobileMatchExpression: /(iphone|ipod|ipad|android|blackberry|symbian)/,
				disableShrink: false,
				shrinkFactor: .75,
				overlayOpacity: .9,
				slideshow: false,
				timeout: 5000,
				swipe: true,
				useKeys: true,
				useCategories: true,
				navigateEndless: true,
				closeOnOverlayClick: true,
				title: null,
				caption: null,
				showTitle: true,
				showCaption: true,
				showSequenceInfo: true,
				inline: {
					width: 'auto',
					height: 'auto'
				},
				ajax: {
					width: 'auto',
					height: 'auto',
					type: 'get',
					dataType: 'html',
					data: {}
				},
				iframe: {
					width: 800,
					height: 500,
					frameborder: 0
				},
				flash: {
					width: 400,
					height: 205,
					wmode: 'transparent'
				},
				video: {
					width: 400,
					height: 225,
					poster: '',
					preload: 'auto',
					controls: true,
					autobuffer: true,
					autoplay: true,
					loop: false
				},
				attr: 'data-rel',
				href: null,
				type: null,
				typeMapping: {
					'image': 'jpg,jpeg,gif,png,bmp',
					'flash': 'swf',
					'video': 'mp4,mov,ogv,ogg,webm',
					'iframe': 'html,php',
					'ajax': 'json,txt',
					'inline': '#'
				},
				errorMessage: function () {
					return '<p class="' + _self.settings.classPrefix + 'error">' + _self.settings.labels['errorMessage'] + '</p>';
				},
				labels: {
					'errorMessage': 'Source could not be found...',
					'sequenceInfo.of': ' of ',
					'close': 'Close',
					'navigator.prev': 'Prev',
					'navigator.next': 'Next',
 					'navigator.play': 'Play',
					'navigator.pause': 'Pause'
				},
				markup: function () {
					$('body').append(
						_self.objects.overlay = $('<div id="' + _self.settings.idPrefix + 'overlay"></div>'),
						_self.objects.loading = $('<div id="' + _self.settings.idPrefix + 'loading" class="' + _self.settings.classPrefix + 'icon-spin"></div>'),
						_self.objects.case = $('<div id="' + _self.settings.idPrefix + 'case" aria-hidden="true" role="dialog"></div>')
					);
					_self.objects.case.after(
						_self.objects.nav = $('<div id="' + _self.settings.idPrefix + 'nav"></div>')
					);
					_self.objects.nav.append(
						_self.objects.close = $('<a href="#" class="' + _self.settings.classPrefix + 'icon-close"><span>' + _self.settings.labels['close'] + '</span></a>'),
						_self.objects.prev = $('<a href="#" class="' + _self.settings.classPrefix + 'icon-prev"><span>' + _self.settings.labels['navigator.prev'] + '</span></a>').hide(),
						_self.objects.next = $('<a href="#" class="' + _self.settings.classPrefix + 'icon-next"><span>' + _self.settings.labels['navigator.next'] + '</span></a>').hide(),
						_self.objects.play = $('<a href="#" class="' + _self.settings.classPrefix + 'icon-play"><span>' + _self.settings.labels['navigator.play'] + '</span></a>').hide(),
						_self.objects.pause = $('<a href="#" class="' + _self.settings.classPrefix + 'icon-pause"><span>' + _self.settings.labels['navigator.pause'] + '</span></a>').hide()
					);
					_self.objects.case.append(
						_self.objects.content = $('<div id="' + _self.settings.idPrefix + 'content"></div>'),
						_self.objects.info = $('<div id="' + _self.settings.idPrefix + 'info"></div>')
					);
					_self.objects.content.append(
						_self.objects.contentInner = $('<div class="' + _self.settings.classPrefix + 'contentInner"></div>')
					);
					_self.objects.info.append(
						_self.objects.sequenceInfo = $('<div id="' + _self.settings.idPrefix + 'sequenceInfo"></div>'),
						_self.objects.title = $('<h4 id="' + _self.settings.idPrefix + 'title"></h4>'),
						_self.objects.caption = $('<p id="' + _self.settings.idPrefix + 'caption"></p>')
					);
				},
				onInit: {},
				onStart: {},
				onFinish: {},
				onClose: {},
				onCleanup: {}
			}, options);

			// Call onInit hook functions
			_self._callHooks(_self.settings.onInit);

			_self.objectData = _self._setObjectData(this);

			_self._cacheScrollPosition();
			_self._watchScrollInteraction();

			_self._addElements();
			_self._open();

			_self.dimensions = _self.getViewportDimensions();
		},

		/**
		 * Getter method for objects
		 *
		 * @param	{string}	name
		 * @return	{object}
		 */
		get: function (name) {
			return _self.objects[name];
		},

		/**
		 * Getter method for objectData
		 *
		 * @return	{object}
		 */
		getObjectData: function () {
			return _self.objectData;
		},

		/**
		 * Sets the object data
		 *
		 * @param	{object}	object
		 * @return	{object}	objectData
		 */
		_setObjectData: function (object) {
		 	var $object = $(object),
				objectData = {
				title: _self.settings.title || $object.attr(_self._prefixAttributeName('title')) || $object.attr('title'),
				caption: _self.settings.caption || $object.attr(_self._prefixAttributeName('caption')) || $object.children('img').attr('alt'),
				url: _self._determineUrl(),
				requestType: _self.settings.ajax.type,
				requestData: _self.settings.ajax.data,
				requestDataType: _self.settings.ajax.dataType,
				rel: $object.attr(_self._determineAttributeSelector()),
				type: _self.settings.type || _self._verifyDataType(_self._determineUrl()),
				isPartOfSequence: _self._isPartOfSequence($object.attr(_self.settings.attr), ':'),
				isPartOfSequenceWithSlideshow: _self._isPartOfSequence($object.attr(_self.settings.attr), ':slideshow'),
				currentIndex: $(_self._determineAttributeSelector()).index($object),
				sequenceLength: $(_self._determineAttributeSelector()).length
			};

			// Add sequence info to objectData
			objectData.sequenceInfo = (objectData.currentIndex + 1) + _self.settings.labels['sequenceInfo.of'] + objectData.sequenceLength;

			// Add next/prev index
			objectData.prevIndex = objectData.currentIndex - 1;
			objectData.nextIndex = objectData.currentIndex + 1;

			return objectData;
		},

		/**
		 * Prefixes a data attribute name with defined name from 'settings.attrPrefix'
		 * to ensure more uniqueness for all lightcase related/used attributes.
		 *
		 * @param	{string}	name
		 * @return	{string}
		 */
		_prefixAttributeName: function (name) {
			return 'data-' + _self.settings.attrPrefix + name;
		},

		/**
		 * Determines the link target considering 'settings.href' and data attributes
		 * but also with a fallback to the default 'href' value.
		 *
		 * @return	{string}
		 */
		_determineLinkTarget: function () {
			return _self.settings.href || $(_self.origin).attr(_self._prefixAttributeName('href')) || $(_self.origin).attr('href');
		},

		/**
		 * Determines the attribute selector to use, depending on
		 * whether categorized collections are beeing used or not.
		 *
		 * @return	{string}	selector
		 */
		_determineAttributeSelector: function () {
			var	$origin = $(_self.origin),
				selector = '';

			if (typeof _self.cache.selector !== 'undefined') {
				selector = _self.cache.selector;
			} else if (_self.settings.useCategories === true && $origin.attr(_self._prefixAttributeName('categories'))) {
				var	categories = $origin.attr(_self._prefixAttributeName('categories')).split(' ');

				$.each(categories, function (index, category) {
					if (index > 0) {
						selector += ',';
					}
					selector += '[' + _self._prefixAttributeName('categories') + '~="' + category + '"]';
				});
			} else {
				selector = '[' + _self.settings.attr + '="' + $origin.attr(_self.settings.attr) + '"]';
			}

			_self.cache.selector = selector;

			return selector;
		},

		/**
		 * Determines the correct resource according to the
		 * current viewport and density.
		 *
		 * @return	{string}	url
		 */
		_determineUrl: function () {
			var dataUrl = _self._verifyDataUrl(_self._determineLinkTarget()),
				width = 0,
				density = 0,
				url;

			$.each(dataUrl, function (index, src) {
				if (
					// Check density
					_self._devicePixelRatio() >= src.density &&
					src.density >= density &&
					// Check viewport width
					_self._matchMedia()('screen and (min-width:' + src.width + 'px)') &&
					src.width >= width
				) {
					width = src.width;
					density = src.density;
					url = src.url;
				}
			});

			return url;
		},

		/**
		 * Normalizes an url and returns information about the resource path,
		 * the viewport width as well as density if defined.
		 *
		 * @param	{string}	url	Path to resource in format of an url or srcset
		 * @return	{object}
		 */
		_normalizeUrl: function (url) {
			var srcExp = /^\d+$/;

			return url.split(',').map(function (str) {
				var src = {
					width: 0,
					density: 0
				};

				str.trim().split(/\s+/).forEach(function (url, i) {
					if (i === 0) {
						return src.url = url;
					}

					var value = url.substring(0, url.length - 1),
						lastChar = url[url.length - 1],
						intVal = parseInt(value, 10),
						floatVal = parseFloat(value);
					if (lastChar === 'w' && srcExp.test(value)) {
						src.width = intVal;
					} else if (lastChar === 'h' && srcExp.test(value)) {
						src.height = intVal;
					} else if (lastChar === 'x' && !isNaN(floatVal)) {
						src.density = floatVal;
					}
				});

				return src;
			});
		},

		/**
		 * Verifies if the link is part of a sequence
		 *
		 * @param	{string}	rel
		 * @param	{string}	expression
		 * @return	{boolean}
		 */
		_isPartOfSequence: function (rel, expression) {
			var getSimilarLinks = $('[' + _self.settings.attr + '="' + rel + '"]'),
				regexp = new RegExp(expression);

			return (regexp.test(rel) && getSimilarLinks.length > 1);
		},

		/**
		 * Verifies if the slideshow should be enabled
		 *
		 * @return	{boolean}
		 */
		isSlideshowEnabled: function () {
			return (_self.objectData.isPartOfSequence && (_self.settings.slideshow === true || _self.objectData.isPartOfSequenceWithSlideshow === true));
		},

		/**
		 * Loads the new content to show
		 *
		 * @return	{void}
		 */
		_loadContent: function () {
			if (_self.cache.originalObject) {
				_self._restoreObject();
			}

			_self._createObject();
		},

		/**
		 * Creates a new object
		 *
		 * @return	{void}
		 */
		_createObject: function () {
			var $object;

			// Create object
			switch (_self.objectData.type) {
				case 'image':
					$object = $(new Image());
					$object.attr({
						// The time expression is required to prevent the binding of an image load
						'src': _self.objectData.url,
						'alt': _self.objectData.title
					});
					break;
				case 'inline':
					$object = $('<div class="' + _self.settings.classPrefix + 'inlineWrap"></div>');
					$object.html(_self._cloneObject($(_self.objectData.url)));

					// Add custom attributes from _self.settings
					$.each(_self.settings.inline, function (name, value) {
						$object.attr(_self._prefixAttributeName(name), value);
					});
					break;
				case 'ajax':
					$object = $('<div class="' + _self.settings.classPrefix + 'inlineWrap"></div>');

					// Add custom attributes from _self.settings
					$.each(_self.settings.ajax, function (name, value) {
						if (name !== 'data') {
							$object.attr(_self._prefixAttributeName(name), value);
						}
					});
					break;
				case 'flash':
					$object = $('<embed src="' + _self.objectData.url + '" type="application/x-shockwave-flash"></embed>');

					// Add custom attributes from _self.settings
					$.each(_self.settings.flash, function (name, value) {
						$object.attr(name, value);
					});
					break;
				case 'video':
					$object = $('<video></video>');
					$object.attr('src', _self.objectData.url);

					// Add custom attributes from _self.settings
					$.each(_self.settings.video, function (name, value) {
						$object.attr(name, value);
					});
					break;
				default :
					$object = $('<iframe></iframe>');
					$object.attr({
						'src': _self.objectData.url
					});

					// Add custom attributes from _self.settings
					$.each(_self.settings.iframe, function (name, value) {
						$object.attr(name, value);
					});
					break;
			}

			_self._addObject($object);
			_self._loadObject($object);
		},

		/**
		 * Adds the new object to the markup
		 *
		 * @param	{object}	$object
		 * @return	{void}
		 */
		_addObject: function ($object) {
			// Add object to content holder
			_self.objects.contentInner.html($object);

			// Start loading
			_self._loading('start');

			// Call onStart hook functions
			_self._callHooks(_self.settings.onStart);

			// Add sequenceInfo to the content holder or hide if its empty
			if (_self.settings.showSequenceInfo === true && _self.objectData.isPartOfSequence) {
				_self.objects.sequenceInfo.html(_self.objectData.sequenceInfo);
				_self.objects.sequenceInfo.show();
			} else {
				_self.objects.sequenceInfo.empty();
				_self.objects.sequenceInfo.hide();
			}
			// Add title to the content holder or hide if its empty
			if (_self.settings.showTitle === true && _self.objectData.title !== undefined && _self.objectData.title !== '') {
				_self.objects.title.html(_self.objectData.title);
				_self.objects.title.show();
			} else {
				_self.objects.title.empty();
				_self.objects.title.hide();
			}
			// Add caption to the content holder or hide if its empty
			if (_self.settings.showCaption === true && _self.objectData.caption !== undefined && _self.objectData.caption !== '') {
				_self.objects.caption.html(_self.objectData.caption);
				_self.objects.caption.show();
			} else {
				_self.objects.caption.empty();
				_self.objects.caption.hide();
			}
		},

		/**
		 * Loads the new object
		 *
		 * @param	{object}	$object
		 * @return	{void}
		 */
		_loadObject: function ($object) {
			// Load the object
			switch (_self.objectData.type) {
				case 'inline':
					if ($(_self.objectData.url)) {
						_self._showContent($object);
					} else {
						_self.error();
					}
					break;
				case 'ajax':
					$.ajax(
						$.extend({}, _self.settings.ajax, {
							url: _self.objectData.url,
							type: _self.objectData.requestType,
							dataType: _self.objectData.requestDataType,
							data: _self.objectData.requestData,
							success: function (data, textStatus, jqXHR) {
								// Unserialize if data is transferred as json
								if (_self.objectData.requestDataType === 'json') {
									_self.objectData.data = data;
								} else {
									$object.html(data);
								}
								_self._showContent($object);
							},
							error: function (jqXHR, textStatus, errorThrown) {
								_self.error();
							}
						})
					);
					break;
				case 'flash':
					_self._showContent($object);
					break;
				case 'video':
					if (typeof($object.get(0).canPlayType) === 'function' || _self.objects.case.find('video').length === 0) {
						_self._showContent($object);
					} else {
						_self.error();
					}
					break;
				default:
					if (_self.objectData.url) {
						$object.load(function () {
							_self._showContent($object);
						});
						$object.error(function () {
							_self.error();
						});
					} else {
						_self.error();
					}
					break;
			}
		},

		/**
		 * Throws an error message if something went wrong
		 *
		 * @return	{void}
		 */
		error: function () {
			_self.objectData.type = 'error';
			var $object = $('<div class="' + _self.settings.classPrefix + 'inlineWrap"></div>');

			$object.html(_self.settings.errorMessage);
			_self.objects.contentInner.html($object);

			_self._showContent(_self.objects.contentInner);
		},

		/**
		 * Calculates the dimensions to fit content
		 *
		 * @param	{object}	$object
		 * @return	{void}
		 */
		_calculateDimensions: function ($object) {
			_self._cleanupDimensions();

			// Set default dimensions
			var dimensions = {
				objectWidth: $object.attr('width') ? $object.attr('width') : $object.attr(_self._prefixAttributeName('width')),
				objectHeight: $object.attr('height') ? $object.attr('height') : $object.attr(_self._prefixAttributeName('height'))
			};

			if (!_self.settings.disableShrink) {
				// Add calculated maximum width/height to dimensions
				dimensions.maxWidth = parseInt(_self.dimensions.windowWidth * _self.settings.shrinkFactor);
				dimensions.maxHeight = parseInt(_self.dimensions.windowHeight * _self.settings.shrinkFactor);

				// If the auto calculated maxWidth/maxHeight greather than the userdefined one, use that.
				if (dimensions.maxWidth > _self.settings.maxWidth) {
					dimensions.maxWidth = _self.settings.maxWidth;
				}
				if (dimensions.maxHeight > _self.settings.maxHeight) {
					dimensions.maxHeight = _self.settings.maxHeight;
				}

				// Calculate the difference between screen width/height and image width/height
				dimensions.differenceWidthAsPercent = parseInt(100 / dimensions.maxWidth * dimensions.objectWidth);
				dimensions.differenceHeightAsPercent = parseInt(100 / dimensions.maxHeight * dimensions.objectHeight);

				switch (_self.objectData.type) {
					case 'image':
					case 'flash':
					case 'video':
						if (dimensions.differenceWidthAsPercent > 100 && dimensions.differenceWidthAsPercent > dimensions.differenceHeightAsPercent) {
							dimensions.objectWidth = dimensions.maxWidth;
							dimensions.objectHeight = parseInt(dimensions.objectHeight / dimensions.differenceWidthAsPercent * 100);
						}
						if (dimensions.differenceHeightAsPercent > 100 && dimensions.differenceHeightAsPercent > dimensions.differenceWidthAsPercent) {
							dimensions.objectWidth = parseInt(dimensions.objectWidth / dimensions.differenceHeightAsPercent * 100);
							dimensions.objectHeight = dimensions.maxHeight;
						}
						if (dimensions.differenceHeightAsPercent > 100 && dimensions.differenceWidthAsPercent < dimensions.differenceHeightAsPercent) {
							dimensions.objectWidth = parseInt(dimensions.maxWidth / dimensions.differenceHeightAsPercent * dimensions.differenceWidthAsPercent);
							dimensions.objectHeight = dimensions.maxHeight;
						}
						break;
					case 'error':
						if (!isNaN(dimensions.objectWidth) && dimensions.objectWidth > dimensions.maxWidth) {
							dimensions.objectWidth = dimensions.maxWidth;
						}
						break;
					default:
						if ((isNaN(dimensions.objectWidth) || dimensions.objectWidth > dimensions.maxWidth) && !_self.settings.forceWidth) {
							dimensions.objectWidth = dimensions.maxWidth;
						}
						if (((isNaN(dimensions.objectHeight) && dimensions.objectHeight !== 'auto') || dimensions.objectHeight > dimensions.maxHeight) && !_self.settings.forceHeight) {
							dimensions.objectHeight = dimensions.maxHeight;
						}
						break;
				}
			}

			if (_self.settings.forceWidth) {
				dimensions.maxWidth = dimensions.objectWidth;
			} else if ($object.attr(_self._prefixAttributeName('max-width'))) {
				dimensions.maxWidth =  $object.attr(_self._prefixAttributeName('max-width'));
			}

			if (_self.settings.forceHeight) {
				dimensions.maxHeight = dimensions.objectHeight;
			} else if ($object.attr(_self._prefixAttributeName('max-height'))) {
				dimensions.maxHeight =  $object.attr(_self._prefixAttributeName('max-height'));
			}

			_self._adjustDimensions($object, dimensions);
		},

		/**
		 * Adjusts the dimensions
		 *
		 * @param	{object}	$object
		 * @param	{object}	dimensions
		 * @return	{void}
		 */
		_adjustDimensions: function ($object, dimensions) {
			// Adjust width and height
			$object.css({
				'width': dimensions.objectWidth,
				'height': dimensions.objectHeight,
				'max-width': dimensions.maxWidth,
				'max-height': dimensions.maxHeight
			});

			_self.objects.contentInner.css({
				'width': $object.outerWidth(),
				'height': $object.outerHeight(),
				'max-width': '100%'
			});

			_self.objects.case.css({
				'width': _self.objects.contentInner.outerWidth()
			});

			// Adjust margin
			_self.objects.case.css({
				'margin-top': parseInt(-(_self.objects.case.outerHeight() / 2)),
				'margin-left': parseInt(-(_self.objects.case.outerWidth() / 2))
			});
		},

		/**
		 * Handles the _loading
		 *
		 * @param	{string}	process
		 * @return	{void}
		 */
		_loading: function (process) {
			if (process === 'start') {
				_self.objects.case.addClass(_self.settings.classPrefix + 'loading');
				_self.objects.loading.show();
			} else if (process === 'end') {
				_self.objects.case.removeClass(_self.settings.classPrefix + 'loading');
				_self.objects.loading.hide();
			}
		},


		/**
		 * Gets the client screen dimensions
		 *
		 * @return	{object}	dimensions
		 */
		getViewportDimensions: function () {
			return {
				windowWidth: $(window).innerWidth(),
				windowHeight: $(window).innerHeight()
			};
		},

		/**
		 * Verifies the url
		 *
		 * @param	{string}	dataUrl
		 * @return	{object}	dataUrl	Clean url for processing content
		 */
		_verifyDataUrl: function (dataUrl) {
			if (!dataUrl || dataUrl === undefined || dataUrl === '') {
				return false;
			}

			if (dataUrl.indexOf('#') > -1) {
				dataUrl = dataUrl.split('#');
				dataUrl = '#' + dataUrl[dataUrl.length - 1];
			}

			return _self._normalizeUrl(dataUrl.toString());
		},

		/**
		 * Verifies the data type of the content to load
		 *
		 * @param	{string}			url
		 * @return	{string|boolean}	Array key if expression matched, else false
		 */
		_verifyDataType: function (url) {
			var typeMapping = _self.settings.typeMapping;

			// Early abort if dataUrl couldn't be verified
			if (!url) {
				return false;
			}

			// Verify the dataType of url according to typeMapping which
			// has been defined in settings.
			for (var key in typeMapping) {
				if (typeMapping.hasOwnProperty(key)) {
					var suffixArr = typeMapping[key].split(',');

					for (var i = 0; i < suffixArr.length; i++) {
						var suffix = suffixArr[i].toLowerCase(),
							regexp = new RegExp('\.(' + suffix + ')$', 'i'),
							// Verify only the last 5 characters of the string
							str = url.toLowerCase().split('?')[0].substr(-5);

						if (regexp.test(str) === true || (key === 'inline' && (url.indexOf(suffix) > -1))) {
							return key;
						}
					}
				}
			}

			// If no expression matched, return 'iframe'.
			return 'iframe';
		},

		/**
		 * Extends html markup with the essential tags
		 *
		 * @return	{void}
		 */
		_addElements: function () {
			if (typeof _self.objects.case !== 'undefined' && $('#' + _self.objects.case.attr('id')).length) {
				return;
			}

			_self.settings.markup();
		},

		/**
		 * Shows the loaded content
		 *
		 * @param	{object}	$object
		 * @return	{void}
		 */
		_showContent: function ($object) {
			// Add data attribute with the object type
			_self.objects.case.attr(_self._prefixAttributeName('type'), _self.objectData.type);

			_self.cache.object = $object;
			_self._calculateDimensions($object);

			// Call onFinish hook functions
			_self._callHooks(_self.settings.onFinish);

			switch (_self.settings.transitionIn) {
				case 'scrollTop':
				case 'scrollRight':
				case 'scrollBottom':
				case 'scrollLeft':
				case 'scrollHorizontal':
				case 'scrollVertical':
					_self.transition.scroll(_self.objects.case, 'in', _self.settings.speedIn);
					_self.transition.fade(_self.objects.contentInner, 'in', _self.settings.speedIn);
					break;
				case 'elastic':
					if (_self.objects.case.css('opacity') < 1) {
						_self.transition.zoom(_self.objects.case, 'in', _self.settings.speedIn);
						_self.transition.fade(_self.objects.contentInner, 'in', _self.settings.speedIn);
					}
				case 'fade':
				case 'fadeInline':
					_self.transition.fade(_self.objects.case, 'in', _self.settings.speedIn);
					_self.transition.fade(_self.objects.contentInner, 'in', _self.settings.speedIn);
					break;
				default:
					_self.transition.fade(_self.objects.case, 'in', 0);
					break;
			}

			// End loading.
			_self._loading('end');
			_self.isBusy = false;
		},

		/**
		 * Processes the content to show
		 *
		 * @return	{void}
		 */
		_processContent: function () {
			_self.isBusy = true;

			switch (_self.settings.transitionOut) {
				case 'scrollTop':
				case 'scrollRight':
				case 'scrollBottom':
				case 'scrollLeft':
				case 'scrollVertical':
				case 'scrollHorizontal':
					if (_self.objects.case.is(':hidden')) {
						_self.transition.fade(_self.objects.case, 'out', 0, 0, function () {
							_self._loadContent();
						});
						_self.transition.fade(_self.objects.contentInner, 'out', 0);
					} else {
						_self.transition.scroll(_self.objects.case, 'out', _self.settings.speedOut, function () {
							_self._loadContent();
						});
					}
					break;
				case 'fade':
					if (_self.objects.case.is(':hidden')) {
						_self.transition.fade(_self.objects.case, 'out', 0, 0, function () {
							_self._loadContent();
						});
					} else {
						_self.transition.fade(_self.objects.case, 'out', _self.settings.speedOut, 0, function () {
							_self._loadContent();
						});
					}
					break;
				case 'fadeInline':
				case 'elastic':
					if (_self.objects.case.is(':hidden')) {
						_self.transition.fade(_self.objects.case, 'out', 0, 0, function () {
							_self._loadContent();
						});
					} else {
						_self.transition.fade(_self.objects.contentInner, 'out', _self.settings.speedOut, 0, function () {
							_self._loadContent();
						});
					}
					break;
				default:
					_self.transition.fade(_self.objects.case, 'out', 0, 0, function () {
						_self._loadContent();
					});
					break;
			}
		},

		/**
		 * Handles events for gallery buttons
		 *
		 * @return	{void}
		 */
		_handleEvents: function () {
			_self._unbindEvents();

			_self.objects.nav.children().not(_self.objects.close).hide();

			// If slideshow is enabled, show play/pause and start timeout.
			if (_self.isSlideshowEnabled()) {
				// Only start the timeout if slideshow is not pausing
				if (!_self.objects.nav.hasClass(_self.settings.classPrefix + 'paused')) {
					_self._startTimeout();
				} else {
					_self._stopTimeout();
				}
			}

			if (_self.settings.liveResize) {
				_self._watchResizeInteraction();
			}

			_self.objects.close.click(function (event) {
				event.preventDefault();
				_self.close();
			});

			if (_self.settings.closeOnOverlayClick === true) {
				_self.objects.overlay.css('cursor', 'pointer').click(function (event) {
					event.preventDefault();

					_self.close();
				});
			}

			if (_self.settings.useKeys === true) {
				_self._addKeyEvents();
			}

			if (_self.objectData.isPartOfSequence) {
				_self.objects.nav.attr(_self._prefixAttributeName('ispartofsequence'), true);
				_self.objects.nav.data('items', _self._setNavigation());

				_self.objects.prev.click(function (event) {
					event.preventDefault();

					if (_self.settings.navigateEndless === true || !_self.item.isFirst()) {
						_self.objects.prev.unbind('click');
						_self.cache.action = 'prev';
						_self.objects.nav.data('items').prev.click();

						if (_self.isSlideshowEnabled()) {
							_self._stopTimeout();
						}
					}
				});

				_self.objects.next.click(function (event) {
					event.preventDefault();

					if (_self.settings.navigateEndless === true || !_self.item.isLast()) {
						_self.objects.next.unbind('click');
						_self.cache.action = 'next';
						_self.objects.nav.data('items').next.click();

						if (_self.isSlideshowEnabled()) {
							_self._stopTimeout();
						}
					}
				});

				if (_self.isSlideshowEnabled()) {
					_self.objects.play.click(function (event) {
						event.preventDefault();
						_self._startTimeout();
					});
					_self.objects.pause.click(function (event) {
						event.preventDefault();
						_self._stopTimeout();
					});
				}

				// Enable swiping if activated
				if (_self.settings.swipe === true) {
					if ($.isPlainObject($.event.special.swipeleft)) {
						_self.objects.case.on('swipeleft', function (event) {
							event.preventDefault();
							_self.objects.next.click();
							if (_self.isSlideshowEnabled()) {
								_self._stopTimeout();
							}
						});
					}
					if ($.isPlainObject($.event.special.swiperight)) {
						_self.objects.case.on('swiperight', function (event) {
							event.preventDefault();
							_self.objects.prev.click();
							if (_self.isSlideshowEnabled()) {
								_self._stopTimeout();
							}
						});
					}
				}
			}
		},

		/**
		 * Adds the key events
		 *
		 * @return	{void}
		 */
		_addKeyEvents: function () {
			$(document).bind('keyup.lightcase', function (event) {
				// Do nothing if lightcase is in process
				if (_self.isBusy) {
					return;
				}

				switch (event.keyCode) {
					// Escape key
					case 27:
						_self.objects.close.click();
						break;
					// Backward key
					case 37:
						if (_self.objectData.isPartOfSequence) {
							_self.objects.prev.click();
						}
						break;
					// Forward key
					case 39:
						if (_self.objectData.isPartOfSequence) {
							_self.objects.next.click();
						}
						break;
				}
			});
		},

		/**
		 * Starts the slideshow timeout
		 *
		 * @return	{void}
		 */
		_startTimeout: function () {
			_self.objects.play.hide();
			_self.objects.pause.show();

			_self.cache.action = 'next';
			_self.objects.nav.removeClass(_self.settings.classPrefix + 'paused');

			_self.timeout = setTimeout(function () {
				_self.objects.nav.data('items').next.click();
			}, _self.settings.timeout);
		},

		/**
		 * Stops the slideshow timeout
		 *
		 * @return	{void}
		 */
		_stopTimeout: function () {
			_self.objects.play.show();
			_self.objects.pause.hide();

			_self.objects.nav.addClass(_self.settings.classPrefix + 'paused');

			clearTimeout(_self.timeout);
		},

		/**
		 * Sets the navigator buttons (prev/next)
		 *
		 * @return	{object}	items
		 */
		_setNavigation: function () {
			var $links = $((_self.cache.selector || _self.settings.attr)),
				sequenceLength = _self.objectData.sequenceLength - 1,
				items = {
					prev: $links.eq(_self.objectData.prevIndex),
					next: $links.eq(_self.objectData.nextIndex)
				};

			if (_self.objectData.currentIndex > 0) {
				_self.objects.prev.show();
			} else {
				items.prevItem = $links.eq(sequenceLength);
			}
			if (_self.objectData.nextIndex <= sequenceLength) {
				_self.objects.next.show();
			} else {
				items.next = $links.eq(0);
			}

			if (_self.settings.navigateEndless === true) {
				_self.objects.prev.show();
				_self.objects.next.show();
			}

			return items;
		},

		/**
		 * Item information/status
		 *
		 */
		item: {
			/**
			 * Verifies if the current item is first item.
			 *
			 * @return	{boolean}
			 */
			isFirst: function () {
				return (_self.objectData.currentIndex === 0);
			},

			/**
			 * Verifies if the current item is last item.
			 *
			 * @return	{boolean}
			 */
			isLast: function () {
				return (_self.objectData.currentIndex === (_self.objectData.sequenceLength - 1));
			}
		},

		/**
		 * Clones the object for inline elements
		 *
		 * @param	{object}	$object
		 * @return	{object}	$clone
		 */
		_cloneObject: function ($object) {
			var $clone = $object.clone(),
				objectId = $object.attr('id');

			// If element is hidden, cache the object and remove
			if ($object.is(':hidden')) {
				_self._cacheObjectData($object);
				$object.attr('id', _self.settings.idPrefix + 'temp-' + objectId).empty();
			} else {
				// Prevent duplicated id's
				$clone.removeAttr('id');
			}

			return $clone.show();
		},

		/**
		 * Verifies if it is a mobile device
		 *
		 * @return	{boolean}
		 */
		isMobileDevice: function () {
			var deviceAgent = navigator.userAgent.toLowerCase(),
				agentId = deviceAgent.match(_self.settings.mobileMatchExpression);

			return agentId ? true : false;
		},

		/**
		 * Verifies if css transitions are supported
		 *
		 * @return	{string|boolean}	The transition prefix if supported, else false.
		 */
		isTransitionSupported: function () {
			var body = $('body').get(0),
				isTransitionSupported = false,
				transitionMapping = {
					'transition': '',
					'WebkitTransition': '-webkit-',
					'MozTransition': '-moz-',
					'OTransition': '-o-',
					'MsTransition': '-ms-'
				};

			for (var key in transitionMapping) {
				if (transitionMapping.hasOwnProperty(key) && key in body.style) {
					_self.support.transition = transitionMapping[key];
					isTransitionSupported = true;
				}
			}

			return isTransitionSupported;
		},

		/**
		 * Transition types
		 *
		 */
		transition: {
			/**
			 * Fades in/out the object
			 *
			 * @param	{object}	$object
			 * @param	{string}	type
			 * @param	{number}	speed
			 * @param	{number}	opacity
			 * @param	{function}	callback
			 * @return	{void}		Animates an object
			 */
			fade: function ($object, type, speed, opacity, callback) {
				var isInTransition = type === 'in',
					startTransition = {},
					startOpacity = $object.css('opacity'),
					endTransition = {},
					endOpacity = opacity ? opacity: isInTransition ? 1 : 0;

				if (!_self.isOpen && isInTransition) return;

				startTransition['opacity'] = startOpacity;
				endTransition['opacity'] = endOpacity;

				$object.css(startTransition).show();

				// Css transition
				if (_self.support.transitions) {
					endTransition[_self.support.transition + 'transition'] = speed + 'ms ease';

					setTimeout(function () {
						$object.css(endTransition);

						setTimeout(function () {
							$object.css(_self.support.transition + 'transition', '');

							if (callback && (_self.isOpen || !isInTransition)) {
								callback();
							}
						}, speed);
					}, 15);
				} else {
					// Fallback to js transition
					$object.stop();
					$object.animate(endTransition, speed, callback);
				}
			},

			/**
			 * Scrolls in/out the object
			 *
			 * @param	{object}	$object
			 * @param	{string}	type
			 * @param	{number}	speed
			 * @param	{function}	callback
			 * @return	{void}		Animates an object
			 */
			scroll: function ($object, type, speed, callback) {
				var isInTransition = type === 'in',
					transition = isInTransition ? _self.settings.transitionIn : _self.settings.transitionOut,
					direction = 'left',
					startTransition = {},
					startOpacity = isInTransition ? 0 : 1,
					startOffset = isInTransition ? '-50%' : '50%',
					endTransition = {},
					endOpacity = isInTransition ? 1 : 0,
					endOffset = isInTransition ? '50%' : '-50%';

				if (!_self.isOpen && isInTransition) return;

				switch (transition) {
					case 'scrollTop':
						direction = 'top';
						break;
					case 'scrollRight':
						startOffset = isInTransition ? '150%' : '50%';
						endOffset = isInTransition ? '50%' : '150%';
						break;
					case 'scrollBottom':
						direction = 'top';
						startOffset = isInTransition ? '150%' : '50%';
						endOffset = isInTransition ? '50%' : '150%';
						break;
					case 'scrollHorizontal':
						startOffset = isInTransition ? '150%' : '50%';
						endOffset = isInTransition ? '50%' : '-50%';
						break;
					case 'scrollVertical':
						direction = 'top';
						startOffset = isInTransition ? '-50%' : '50%';
						endOffset = isInTransition ? '50%' : '150%';
						break;
				}

				if (_self.cache.action === 'prev') {
					switch (transition) {
						case 'scrollHorizontal':
							startOffset = isInTransition ? '-50%' : '50%';
							endOffset = isInTransition ? '50%' : '150%';
							break;
						case 'scrollVertical':
							startOffset = isInTransition ? '150%' : '50%';
							endOffset = isInTransition ? '50%' : '-50%';
							break;
					}
				}

				startTransition['opacity'] = startOpacity;
				startTransition[direction] = startOffset;

				endTransition['opacity'] = endOpacity;
				endTransition[direction] = endOffset;

				$object.css(startTransition).show();

				// Css transition
				if (_self.support.transitions) {
					endTransition[_self.support.transition + 'transition'] = speed + 'ms ease';

					setTimeout(function () {
						$object.css(endTransition);

						setTimeout(function () {
							$object.css(_self.support.transition + 'transition', '');

							if (callback && (_self.isOpen || !isInTransition)) {
								callback();
							}
						}, speed);
					}, 15);
				} else {
					// Fallback to js transition
					$object.stop();
					$object.animate(endTransition, speed, callback);
				}
			},

			/**
			 * Zooms in/out the object
			 *
			 * @param	{object}	$object
			 * @param	{string}	type
			 * @param	{number}	speed
			 * @param	{function}	callback
			 * @return	{void}		Animates an object
			 */
			zoom: function ($object, type, speed, callback) {
				var isInTransition = type === 'in',
					startTransition = {},
					startOpacity = $object.css('opacity'),
					startScale = isInTransition ? 'scale(0.75)' : 'scale(1)',
					endTransition = {},
					endOpacity = isInTransition ? 1 : 0,
					endScale = isInTransition ? 'scale(1)' : 'scale(0.75)';

				if (!_self.isOpen && isInTransition) return;

				startTransition['opacity'] = startOpacity;
				startTransition[_self.support.transition + 'transform'] = startScale;

				endTransition['opacity'] = endOpacity;

				$object.css(startTransition).show();

				// Css transition
				if (_self.support.transitions) {
					endTransition[_self.support.transition + 'transform'] = endScale;
					endTransition[_self.support.transition + 'transition'] = speed + 'ms ease';

					setTimeout(function () {
						$object.css(endTransition);

						setTimeout(function () {
							$object.css(_self.support.transition + 'transform', '');
							$object.css(_self.support.transition + 'transition', '');

							if (callback && (_self.isOpen || !isInTransition)) {
								callback();
							}
						}, speed);
					}, 15);
				} else {
					// Fallback to js transition
					$object.stop();
					$object.animate(endTransition, speed, callback);
				}
			}
		},

		/**
		 * Calls all the registered functions of a specific hook
		 *
		 * @param	{object}	hooks
		 * @return	{void}
		 */
		_callHooks: function (hooks) {
			if (typeof(hooks) === 'object') {
				$.each(hooks, function(index, hook) {
					if (typeof(hook) === 'function') {
						hook.call(_self.origin);
					}
				});
			}
		},

		/**
		 * Caches the object data
		 *
		 * @param	{object}	$object
		 * @return	{void}
		 */
		_cacheObjectData: function ($object) {
			$.data($object, 'cache', {
				id: $object.attr('id'),
				content: $object.html()
			});

			_self.cache.originalObject = $object;
		},

		/**
		 * Restores the object from cache
		 *
		 * @return	void
		 */
		_restoreObject: function () {
			var $object = $('[id^="' + _self.settings.idPrefix + 'temp-"]');

			$object.attr('id', $.data(_self.cache.originalObject, 'cache').id);
			$object.html($.data(_self.cache.originalObject, 'cache').content);
		},

		/**
		 * Executes functions for a window resize.
		 * It stops an eventual timeout and recalculates dimenstions.
		 *
		 * @return	{void}
		 */
		resize: function () {
			if (!_self.isOpen) return;

			if (_self.isSlideshowEnabled()) {
				_self._stopTimeout();
			}

			_self.dimensions = _self.getViewportDimensions();
			_self._calculateDimensions(_self.cache.object);
		},

		/**
		 * Caches the actual scroll coordinates.
		 *
		 * @return	{void}
		 */
		_cacheScrollPosition: function () {
			var	$window = $(window),
				$document = $(document),
				offset = {
					'top': $window.scrollTop(),
					'left':  $window.scrollLeft()
				};

			_self.cache.scrollPosition = _self.cache.scrollPosition || {};

			if ($document.width() > $window.width()) {
				_self.cache.scrollPosition.left = offset.left;
			}
			if ($document.height() > $window.height()) {
				_self.cache.scrollPosition.top = offset.top;
			}
		},

		/**
		 * Watches for any resize interaction and caches the new sizes.
		 *
		 * @return	{void}
		 */
		_watchResizeInteraction: function () {
			$(window).resize(_self.resize);
		},

		/**
		 * Stop watching any resize interaction related to _self.
		 *
		 * @return	{void}
		 */
		_unwatchResizeInteraction: function () {
			$(window).off('resize', _self.resize);
		},

		/**
		 * Watches for any scroll interaction and caches the new position.
		 *
		 * @return	{void}
		 */
		_watchScrollInteraction: function () {
			$(window).scroll(_self._cacheScrollPosition);
		},

		/**
		 * Stop watching any scroll interaction related to _self.
		 *
		 * @return	{void}
		 */
		_unwatchScrollInteraction: function () {
			$(window).off('scroll', _self._cacheScrollPosition);
		},

		/**
		 * Restores to the original scoll position before
		 * lightcase got initialized.
		 *
		 * @return	{void}
		 */
		_restoreScrollPosition: function () {
			$(window)
				.scrollTop(parseInt(_self.cache.scrollPosition.top))
				.scrollLeft(parseInt(_self.cache.scrollPosition.left))
				.resize();
		},

		/**
		 * Switches to the fullscreen mode
		 *
		 * @return	{void}
		 */
		_switchToFullScreenMode: function () {
			_self.settings.shrinkFactor = 1;
			_self.settings.overlayOpacity = 1;

			$('html').addClass(_self.settings.classPrefix + 'fullScreenMode');
		},

		/**
		 * Enters into the lightcase view
		 *
		 * @return	{void}
		 */
		_open: function () {
			_self.isOpen = true;

			_self.support.transitions = _self.settings.cssTransitions ? _self.isTransitionSupported() : false;
			_self.support.mobileDevice = _self.isMobileDevice();

			if (_self.support.mobileDevice) {
				$('html').addClass(_self.settings.classPrefix + 'isMobileDevice');

				if (_self.settings.fullScreenModeForMobile) {
					_self._switchToFullScreenMode();
				}
			}
			if (!_self.settings.transitionIn) {
				_self.settings.transitionIn = _self.settings.transition;
			}
			if (!_self.settings.transitionOut) {
				_self.settings.transitionOut = _self.settings.transition;
			}

			switch (_self.settings.transitionIn) {
				case 'fade':
				case 'fadeInline':
				case 'elastic':
				case 'scrollTop':
				case 'scrollRight':
				case 'scrollBottom':
				case 'scrollLeft':
				case 'scrollVertical':
				case 'scrollHorizontal':
					if (_self.objects.case.is(':hidden')) {
						_self.objects.close.css('opacity', 0);
						_self.objects.overlay.css('opacity', 0);
						_self.objects.case.css('opacity', 0);
						_self.objects.contentInner.css('opacity', 0);
					}
					_self.transition.fade(_self.objects.overlay, 'in', _self.settings.speedIn, _self.settings.overlayOpacity, function () {
						_self.transition.fade(_self.objects.close, 'in', _self.settings.speedIn);
						_self._handleEvents();
						_self._processContent();
					});
					break;
				default:
					_self.transition.fade(_self.objects.overlay, 'in', 0, _self.settings.overlayOpacity, function () {
						_self.transition.fade(_self.objects.close, 'in', 0);
						_self._handleEvents();
						_self._processContent();
					});
					break;
			}

			$('html').addClass(_self.settings.classPrefix + 'open');
			_self.objects.case.attr('aria-hidden', 'false');
		},

		/**
		 * Escapes from the lightcase view
		 *
		 * @return	{void}
		 */
		close: function () {
			_self.isOpen = false;

			if (_self.isSlideshowEnabled()) {
				_self._stopTimeout();
				_self.objects.nav.removeClass(_self.settings.classPrefix + 'paused');
			}

			_self.objects.loading.hide();

			_self._unbindEvents();

			_self._unwatchResizeInteraction();
			_self._unwatchScrollInteraction();

			$('html').removeClass(_self.settings.classPrefix + 'open');
			_self.objects.case.attr('aria-hidden', 'true');

			_self.objects.nav.children().hide();

			_self._restoreScrollPosition();

			// Call onClose hook functions
			_self._callHooks(_self.settings.onClose);

			switch (_self.settings.transitionOut) {
				case 'fade':
				case 'fadeInline':
				case 'scrollTop':
				case 'scrollRight':
				case 'scrollBottom':
				case 'scrollLeft':
				case 'scrollHorizontal':
				case 'scrollVertical':
					_self.transition.fade(_self.objects.case, 'out', _self.settings.speedOut, 0, function () {
						_self.transition.fade(_self.objects.overlay, 'out', _self.settings.speedOut, 0, function () {
							_self.cleanup();
						});
					});
					break;
				case 'elastic':
					_self.transition.zoom(_self.objects.case, 'out', _self.settings.speedOut, function () {
						_self.transition.fade(_self.objects.overlay, 'out', _self.settings.speedOut, 0, function () {
							_self.cleanup();
						});
					});
					break;
				default:
					_self.cleanup();
					break;
			}
		},

		/**
		 * Unbinds all given events
		 *
		 * @return	{void}
		 */
		_unbindEvents: function () {
			// Unbind overlay event
			_self.objects.overlay.unbind('click');

			// Unbind key events
			$(document).unbind('keyup.lightcase');

			// Unbind swipe events
			_self.objects.case.unbind('swipeleft').unbind('swiperight');

			// Unbind navigator events
			_self.objects.prev.unbind('click');
			_self.objects.next.unbind('click');
			_self.objects.play.unbind('click');
			_self.objects.pause.unbind('click');

			// Unbind close event
			_self.objects.close.unbind('click');
		},

		/**
		 * Cleans up the dimensions
		 *
		 * @return	{void}
		 */
		_cleanupDimensions: function () {
			var opacity = _self.objects.contentInner.css('opacity');

			_self.objects.case.css({
				'width': '',
				'height': '',
				'top': '',
				'left': '',
				'margin-top': '',
				'margin-left': ''
			});

			_self.objects.contentInner.removeAttr('style').css('opacity', opacity);
			_self.objects.contentInner.children().removeAttr('style');
		},

		/**
		 * Cleanup after aborting lightcase
		 *
		 * @return	{void}
		 */
		cleanup: function () {
			_self._cleanupDimensions();

			_self.objects.loading.hide();
			_self.objects.overlay.hide();
			_self.objects.case.hide();
			_self.objects.prev.hide();
			_self.objects.next.hide();
			_self.objects.play.hide();
			_self.objects.pause.hide();

			_self.objects.case.removeAttr(_self._prefixAttributeName('type'));
			_self.objects.nav.removeAttr(_self._prefixAttributeName('ispartofsequence'));

			_self.objects.contentInner.empty().hide();
			_self.objects.info.children().empty();

			if (_self.cache.originalObject) {
				_self._restoreObject();
			}

			// Call onCleanup hook functions
			_self._callHooks(_self.settings.onCleanup);

			// Restore cache
			_self.cache = {};
		},

		/**
		 * Returns the supported match media or undefined if the browser
		 * doesn't support match media.
		 *
		 * @return	{mixed}
		 */
		_matchMedia: function () {
			return window.matchMedia || window.msMatchMedia;
		},

		/**
		 * Returns the devicePixelRatio if supported. Else, it simply returns
		 * 1 as the default.
		 *
		 * @return	{number}
		 */
		_devicePixelRatio: function () {
			return window.devicePixelRatio || 1;
		},

		/**
		 * Checks if method is public
		 *
		 * @return	{boolean}
		 */
		_isPublicMethod: function (method) {
			return (typeof _self[method] === 'function' && method.charAt(0) !== '_');
		},

		/**
		 * Exports all public methods to be accessible, callable
		 * from global scope.
		 *
		 * @return	{void}
		 */
		_export: function () {
			window.lightcase = {};

			$.each(_self, function (property) {
				if (_self._isPublicMethod(property)) {
					lightcase[property] = _self[property];
				}
			});
		}
	};

	_self._export();

	$.fn.lightcase = function (method) {
		// Method calling logic (only public methods are applied)
		if (_self._isPublicMethod(method)) {
			return _self[method].apply(this, Array.prototype.slice.call(arguments, 1));
		} else if (typeof method === 'object' || !method) {
			return _self.init.apply(this, arguments);
		} else {
			$.error('Method ' + method + ' does not exist on jQuery.lightcase');
		}
	};
})(jQuery);