text: /*! PhotoSwipe Default UI - 4.1.2 - 2017-04-05
  * http://photoswipe.com
  * Copyright (c) 2017 Dmitry Semenov; */
  /**
  *
  * UI on top of main sliding area (caption, arrows, close button, etc.).
  * Built just using public methods/properties of PhotoSwipe.
  * 
  */
  (function (root, factory) { 
  	if (typeof define === 'function' && define.amd) {
  		define(factory);
  	} else if (typeof exports === 'object') {
  		module.exports = factory();
  	} else {
  		root.PhotoSwipeUI_Default = factory();
  	}
  })(this, function () {
  
  	'use strict';
  
  
  
  var PhotoSwipeUI_Default =
   function(pswp, framework) {
  
  	var ui = this;
  	var _overlayUIUpdated = false,
  		_controlsVisible = true,
  		_fullscrenAPI,
  		_controls,
  		_captionContainer,
  		_fakeCaptionContainer,
  		_indexIndicator,
  		_shareButton,
  		_shareModal,
  		_shareModalHidden = true,
  		_initalCloseOnScrollValue,
  		_isIdle,
  		_listen,
  
  		_loadingIndicator,
  		_loadingIndicatorHidden,
  		_loadingIndicatorTimeout,
  
  		_galleryHasOneSlide,
  
  		_options,
  		_defaultUIOptions = {
  			barsSize: {top:44, bottom:'auto'},
  			closeElClasses: ['item', 'caption', 'zoom-wrap', 'ui', 'top-bar'], 
  			timeToIdle: 4000, 
  			timeToIdleOutside: 1000,
  			loadingIndicatorDelay: 1000, // 2s
  			
  			addCaptionHTMLFn: function(item, captionEl /*, isFake */) {
  				if(!item.title) {
  					captionEl.children[0].innerHTML = '';
  					return false;
  				}
  				captionEl.children[0].innerHTML = item.title;
  				return true;
  			},
  
  			closeEl:true,
  			captionEl: true,
  			fullscreenEl: true,
  			zoomEl: true,
  			shareEl: true,
  			counterEl: true,
  			arrowEl: true,
  			preloaderEl: true,
  
  			tapToClose: false,
  			tapToToggleControls: true,
  
  			clickToCloseNonZoomable: true,
  
  			shareButtons: [
  				{id:'facebook', label:'Share on Facebook', url:'https://www.facebook.com/sharer/sharer.php?u={{url}}'},
  				{id:'twitter', label:'Tweet', url:'https://twitter.com/intent/tweet?text={{text}}&url={{url}}'},
  				{id:'pinterest', label:'Pin it', url:'http://www.pinterest.com/pin/create/button/'+
  													'?url={{url}}&media={{image_url}}&description={{text}}'},
  				{id:'download', label:'Download image', url:'{{raw_image_url}}', download:true}
  			],
  			getImageURLForShare: function( /* shareButtonData */ ) {
  				return pswp.currItem.src || '';
  			},
  			getPageURLForShare: function( /* shareButtonData */ ) {
  				return window.location.href;
  			},
  			getTextForShare: function( /* shareButtonData */ ) {
  				return pswp.currItem.title || '';
  			},
  				
  			indexIndicatorSep: ' / ',
  			fitControlsWidth: 1200
  
  		},
  		_blockControlsTap,
  		_blockControlsTapTimeout;
  
  
  
  	var _onControlsTap = function(e) {
  			if(_blockControlsTap) {
  				return true;
  			}
  
  
  			e = e || window.event;
  
  			if(_options.timeToIdle && _options.mouseUsed && !_isIdle) {
  				// reset idle timer
  				_onIdleMouseMove();
  			}
  
  
  			var target = e.target || e.srcElement,
  				uiElement,
  				clickedClass = target.getAttribute('class') || '',
  				found;
  
  			for(var i = 0; i < _uiElements.length; i++) {
  				uiElement = _uiElements[i];
  				if(uiElement.onTap && clickedClass.indexOf('pswp__' + uiElement.name ) > -1 ) {
  					uiElement.onTap();
  					found = true;
  
  				}
  			}
  
  			if(found) {
  				if(e.stopPropagation) {
  					e.stopPropagation();
  				}
  				_blockControlsTap = true;
  
  				// Some versions of Android don't prevent ghost click event 
  				// when preventDefault() was called on touchstart and/or touchend.
  				// 
  				// This happens on v4.3, 4.2, 4.1, 
  				// older versions strangely work correctly, 
  				// but just in case we add delay on all of them)	
  				var tapDelay = framework.features.isOldAndroid ? 600 : 30;
  				_blockControlsTapTimeout = setTimeout(function() {
  					_blockControlsTap = false;
  				}, tapDelay);
  			}
  
  		},
  		_fitControlsInViewport = function() {
  			return !pswp.likelyTouchDevice || _options.mouseUsed || screen.width > _options.fitControlsWidth;
  		},
  		_togglePswpClass = function(el, cName, add) {
  			framework[ (add ? 'add' : 'remove') + 'Class' ](el, 'pswp__' + cName);
  		},
  
  		// add class when there is just one item in the gallery
  		// (by default it hides left/right arrows and 1ofX counter)
  		_countNumItems = function() {
  			var hasOneSlide = (_options.getNumItemsFn() === 1);
  
  			if(hasOneSlide !== _galleryHasOneSlide) {
  				_togglePswpClass(_controls, 'ui--one-slide', hasOneSlide);
  				_galleryHasOneSlide = hasOneSlide;
  			}
  		},
  		_toggleShareModalClass = function() {
  			_togglePswpClass(_shareModal, 'share-modal--hidden', _shareModalHidden);
  		},
  		_toggleShareModal = function() {
  
  			_shareModalHidden = !_shareModalHidden;
  			
  			
  			if(!_shareModalHidden) {
  				_toggleShareModalClass();
  				setTimeout(function() {
  					if(!_shareModalHidden) {
  						framework.addClass(_shareModal, 'pswp__share-modal--fade-in');
  					}
  				}, 30);
  			} else {
  				framework.removeClass(_shareModal, 'pswp__share-modal--fade-in');
  				setTimeout(function() {
  					if(_shareModalHidden) {
  						_toggleShareModalClass();
  					}
  				}, 300);
  			}
  			
  			if(!_shareModalHidden) {
  				_updateShareURLs();
  			}
  			return false;
  		},
  
  		_openWindowPopup = function(e) {
  			e = e || window.event;
  			var target = e.target || e.srcElement;
  
  			pswp.shout('shareLinkClick', e, target);
  
  			if(!target.href) {
  				return false;
  			}
  
  			if( target.hasAttribute('download') ) {
  				return true;
  			}
  
  			window.open(target.href, 'pswp_share', 'scrollbars=yes,resizable=yes,toolbar=no,'+
  										'location=yes,width=550,height=420,top=100,left=' + 
  										(window.screen ? Math.round(screen.width / 2 - 275) : 100)  );
  
  			if(!_shareModalHidden) {
  				_toggleShareModal();
  			}
  			
  			return false;
  		},
  		_updateShareURLs = function() {
  			var shareButtonOut = '',
  				shareButtonData,
  				shareURL,
  				image_url,
  				page_url,
  				share_text;
  
  			for(var i = 0; i < _options.shareButtons.length; i++) {
  				shareButtonData = _options.shareButtons[i];
  
  				image_url = _options.getImageURLForShare(shareButtonData);
  				page_url = _options.getPageURLForShare(shareButtonData);
  				share_text = _options.getTextForShare(shareButtonData);
  
  				shareURL = shareButtonData.url.replace('{{url}}', encodeURIComponent(page_url) )
  									.replace('{{image_url}}', encodeURIComponent(image_url) )
  									.replace('{{raw_image_url}}', image_url )
  									.replace('{{text}}', encodeURIComponent(share_text) );
  
  				shareButtonOut += '<a href="' + shareURL + '" target="_blank" '+
  									'class="pswp__share--' + shareButtonData.id + '"' +
  									(shareButtonData.download ? 'download' : '') + '>' + 
  									shareButtonData.label + '</a>';
  
  				if(_options.parseShareButtonOut) {
  					shareButtonOut = _options.parseShareButtonOut(shareButtonData, shareButtonOut);
  				}
  			}
  			_shareModal.children[0].innerHTML = shareButtonOut;
  			_shareModal.children[0].onclick = _openWindowPopup;
  
  		},
  		_hasCloseClass = function(target) {
  			for(var  i = 0; i < _options.closeElClasses.length; i++) {
  				if( framework.hasClass(target, 'pswp__' + _options.closeElClasses[i]) ) {
  					return true;
  				}
  			}
  		},
  		_idleInterval,
  		_idleTimer,
  		_idleIncrement = 0,
  		_onIdleMouseMove = function() {
  			clearTimeout(_idleTimer);
  			_idleIncrement = 0;
  			if(_isIdle) {
  				ui.setIdle(false);
  			}
  		},
  		_onMouseLeaveWindow = function(e) {
  			e = e ? e : window.event;
  			var from = e.relatedTarget || e.toElement;
  			if (!from || from.nodeName === 'HTML') {
  				clearTimeout(_idleTimer);
  				_idleTimer = setTimeout(function() {
  					ui.setIdle(true);
  				}, _options.timeToIdleOutside);
  			}
  		},
  		_setupFullscreenAPI = function() {
  			if(_options.fullscreenEl && !framework.features.isOldAndroid) {
  				if(!_fullscrenAPI) {
  					_fullscrenAPI = ui.getFullscreenAPI();
  				}
  				if(_fullscrenAPI) {
  					framework.bind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
  					ui.updateFullscreen();
  					framework.addClass(pswp.template, 'pswp--supports-fs');
  				} else {
  					framework.removeClass(pswp.template, 'pswp--supports-fs');
  				}
  			}
  		},
  		_setupLoadingIndicator = function() {
  			// Setup loading indicator
  			if(_options.preloaderEl) {
  			
  				_toggleLoadingIndicator(true);
  
  				_listen('beforeChange', function() {
  
  					clearTimeout(_loadingIndicatorTimeout);
  
  					// display loading indicator with delay
  					_loadingIndicatorTimeout = setTimeout(function() {
  
  						if(pswp.currItem && pswp.currItem.loading) {
  
  							if( !pswp.allowProgressiveImg() || (pswp.currItem.img && !pswp.currItem.img.naturalWidth)  ) {
  								// show preloader if progressive loading is not enabled, 
  								// or image width is not defined yet (because of slow connection)
  								_toggleLoadingIndicator(false); 
  								// items-controller.js function allowProgressiveImg
  							}
  							
  						} else {
  							_toggleLoadingIndicator(true); // hide preloader
  						}
  
  					}, _options.loadingIndicatorDelay);
  					
  				});
  				_listen('imageLoadComplete', function(index, item) {
  					if(pswp.currItem === item) {
  						_toggleLoadingIndicator(true);
  					}
  				});
  
  			}
  		},
  		_toggleLoadingIndicator = function(hide) {
  			if( _loadingIndicatorHidden !== hide ) {
  				_togglePswpClass(_loadingIndicator, 'preloader--active', !hide);
  				_loadingIndicatorHidden = hide;
  			}
  		},
  		_applyNavBarGaps = function(item) {
  			var gap = item.vGap;
  
  			if( _fitControlsInViewport() ) {
  				
  				var bars = _options.barsSize; 
  				if(_options.captionEl && bars.bottom === 'auto') {
  					if(!_fakeCaptionContainer) {
  						_fakeCaptionContainer = framework.createEl('pswp__caption pswp__caption--fake');
  						_fakeCaptionContainer.appendChild( framework.createEl('pswp__caption__center') );
  						_controls.insertBefore(_fakeCaptionContainer, _captionContainer);
  						framework.addClass(_controls, 'pswp__ui--fit');
  					}
  					if( _options.addCaptionHTMLFn(item, _fakeCaptionContainer, true) ) {
  
  						var captionSize = _fakeCaptionContainer.clientHeight;
  						gap.bottom = parseInt(captionSize,10) || 44;
  					} else {
  						gap.bottom = bars.top; // if no caption, set size of bottom gap to size of top
  					}
  				} else {
  					gap.bottom = bars.bottom === 'auto' ? 0 : bars.bottom;
  				}
  				
  				// height of top bar is static, no need to calculate it
  				gap.top = bars.top;
  			} else {
  				gap.top = gap.bottom = 0;
  			}
  		},
  		_setupIdle = function() {
  			// Hide controls when mouse is used
  			if(_options.timeToIdle) {
  				_listen('mouseUsed', function() {
  					
  					framework.bind(document, 'mousemove', _onIdleMouseMove);
  					framework.bind(document, 'mouseout', _onMouseLeaveWindow);
  
  					_idleInterval = setInterval(function() {
  						_idleIncrement++;
  						if(_idleIncrement === 2) {
  							ui.setIdle(true);
  						}
  					}, _options.timeToIdle / 2);
  				});
  			}
  		},
  		_setupHidingControlsDuringGestures = function() {
  
  			// Hide controls on vertical drag
  			_listen('onVerticalDrag', function(now) {
  				if(_controlsVisible && now < 0.95) {
  					ui.hideControls();
  				} else if(!_controlsVisible && now >= 0.95) {
  					ui.showControls();
  				}
  			});
  
  			// Hide controls when pinching to close
  			var pinchControlsHidden;
  			_listen('onPinchClose' , function(now) {
  				if(_controlsVisible && now < 0.9) {
  					ui.hideControls();
  					pinchControlsHidden = true;
  				} else if(pinchControlsHidden && !_controlsVisible && now > 0.9) {
  					ui.showControls();
  				}
  			});
  
  			_listen('zoomGestureEnded', function() {
  				pinchControlsHidden = false;
  				if(pinchControlsHidden && !_controlsVisible) {
  					ui.showControls();
  				}
  			});
  
  		};
  
  
  
  	var _uiElements = [
  		{ 
  			name: 'caption', 
  			option: 'captionEl',
  			onInit: function(el) {  
  				_captionContainer = el; 
  			} 
  		},
  		{ 
  			name: 'share-modal', 
  			option: 'shareEl',
  			onInit: function(el) {  
  				_shareModal = el;
  			},
  			onTap: function() {
  				_toggleShareModal();
  			} 
  		},
  		{ 
  			name: 'button--share', 
  			option: 'shareEl',
  			onInit: function(el) { 
  				_shareButton = el;
  			},
  			onTap: function() {
  				_toggleShareModal();
  			} 
  		},
  		{ 
  			name: 'button--zoom', 
  			option: 'zoomEl',
  			onTap: pswp.toggleDesktopZoom
  		},
  		{ 
  			name: 'counter', 
  			option: 'counterEl',
  			onInit: function(el) {
  				var total = _options.getNumItemsFn();
  				el.innerHTML = '';
  				_indexIndicator = el;
  				if(total == 1) return;
  				for (var i = 0; i <= total; i++) {
  					var dot = document.createElement("dot");
  					el.appendChild(dot);
  				}
  			} 
  		},
  		{ 
  			name: 'button--close', 
  			option: 'closeEl',
  			onTap: pswp.close
  		},
  		{ 
  			name: 'button--download', 
  			option: 'downloadEl',
  			onTap: function() {  
  				var trigger = document.createElement('a');
  				trigger.href = pswp.currItem.src;
  				trigger.download = '';
  				trigger.click();
  			} 
  		},
  		{ 
  			name: 'button--arrow--left', 
  			option: 'arrowEl',
  			onTap: pswp.prev
  		},
  		{ 
  			name: 'button--arrow--right', 
  			option: 'arrowEl',
  			onTap: pswp.next
  		},
  		{ 
  			name: 'button--fs', 
  			option: 'fullscreenEl',
  			onTap: function() {  
  				if(_fullscrenAPI.isFullscreen()) {
  					_fullscrenAPI.exit();
  				} else {
  					_fullscrenAPI.enter();
  				}
  			} 
  		},
  		{ 
  			name: 'preloader', 
  			option: 'preloaderEl',
  			onInit: function(el) {  
  				_loadingIndicator = el;
  			} 
  		}
  
  	];
  
  	var _setupUIElements = function() {
  		var item,
  			classAttr,
  			uiElement;
  
  		var loopThroughChildElements = function(sChildren) {
  			if(!sChildren) {
  				return;
  			}
  
  			var l = sChildren.length;
  			for(var i = 0; i < l; i++) {
  				item = sChildren[i];
  				classAttr = item.className;
  
  				for(var a = 0; a < _uiElements.length; a++) {
  					uiElement = _uiElements[a];
  
  					if(classAttr.indexOf('pswp__' + uiElement.name) > -1  ) {
  
  						if( _options[uiElement.option] ) { // if element is not disabled from options
  							
  							framework.removeClass(item, 'pswp__element--disabled');
  							if(uiElement.onInit) {
  								uiElement.onInit(item);
  							}
  							
  							//item.style.display = 'block';
  						} else {
  							framework.addClass(item, 'pswp__element--disabled');
  							//item.style.display = 'none';
  						}
  					}
  				}
  			}
  		};
  		loopThroughChildElements(_controls.children);
  
  		var topBar =  framework.getChildByClass(_controls, 'pswp__top-bar');
  		if(topBar) {
  			loopThroughChildElements( topBar.children );
  		}
  	};
  
  
  	
  
  	ui.init = function() {
  
  		// extend options
  		framework.extend(pswp.options, _defaultUIOptions, true);
  
  		// create local link for fast access
  		_options = pswp.options;
  
  		// find pswp__ui element
  		_controls = framework.getChildByClass(pswp.scrollWrap, 'pswp__ui');
  
  		// create local link
  		_listen = pswp.listen;
  
  
  		_setupHidingControlsDuringGestures();
  
  		// update controls when slides change
  		_listen('beforeChange', ui.update);
  
  		// toggle zoom on double-tap
  		_listen('doubleTap', function(point) {
  			var initialZoomLevel = pswp.currItem.initialZoomLevel;
  			if(pswp.getZoomLevel() !== initialZoomLevel) {
  				pswp.zoomTo(initialZoomLevel, point, 333);
  			} else {
  				pswp.zoomTo(_options.getDoubleTapZoom(false, pswp.currItem), point, 333);
  			}
  		});
  
  		// Allow text selection in caption
  		_listen('preventDragEvent', function(e, isDown, preventObj) {
  			var t = e.target || e.srcElement;
  			if(
  				t && 
  				t.getAttribute('class') && e.type.indexOf('mouse') > -1 && 
  				( t.getAttribute('class').indexOf('__caption') > 0 || (/(SMALL|STRONG|EM)/i).test(t.tagName) ) 
  			) {
  				preventObj.prevent = false;
  			}
  		});
  
  		// bind events for UI
  		_listen('bindEvents', function() {
  			framework.bind(_controls, 'pswpTap click', _onControlsTap);
  			framework.bind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap);
  
  			if(!pswp.likelyTouchDevice) {
  				framework.bind(pswp.scrollWrap, 'mouseover', ui.onMouseOver);
  			}
  		});
  
  		// unbind events for UI
  		_listen('unbindEvents', function() {
  			if(!_shareModalHidden) {
  				_toggleShareModal();
  			}
  
  			if(_idleInterval) {
  				clearInterval(_idleInterval);
  			}
  			framework.unbind(document, 'mouseout', _onMouseLeaveWindow);
  			framework.unbind(document, 'mousemove', _onIdleMouseMove);
  			framework.unbind(_controls, 'pswpTap click', _onControlsTap);
  			framework.unbind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap);
  			framework.unbind(pswp.scrollWrap, 'mouseover', ui.onMouseOver);
  
  			if(_fullscrenAPI) {
  				framework.unbind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
  				if(_fullscrenAPI.isFullscreen()) {
  					_options.hideAnimationDuration = 0;
  					_fullscrenAPI.exit();
  				}
  				_fullscrenAPI = null;
  			}
  		});
  
  
  		// clean up things when gallery is destroyed
  		_listen('destroy', function() {
  			if(_options.captionEl) {
  				if(_fakeCaptionContainer) {
  					_controls.removeChild(_fakeCaptionContainer);
  				}
  				framework.removeClass(_captionContainer, 'pswp__caption--empty');
  			}
  
  			if(_shareModal) {
  				_shareModal.children[0].onclick = null;
  			}
  			framework.removeClass(_controls, 'pswp__ui--over-close');
  			framework.addClass( _controls, 'pswp__ui--hidden');
  			ui.setIdle(false);
  		});
  		
  
  		if(!_options.showAnimationDuration) {
  			framework.removeClass( _controls, 'pswp__ui--hidden');
  		}
  		_listen('initialZoomIn', function() {
  			if(_options.showAnimationDuration) {
  				framework.removeClass( _controls, 'pswp__ui--hidden');
  			}
  		});
  		_listen('initialZoomOut', function() {
  			framework.addClass( _controls, 'pswp__ui--hidden');
  		});
  
  		_listen('parseVerticalMargin', _applyNavBarGaps);
  		
  		_setupUIElements();
  
  		if(_options.shareEl && _shareButton && _shareModal) {
  			_shareModalHidden = true;
  		}
  
  		_countNumItems();
  
  		_setupIdle();
  
  		_setupFullscreenAPI();
  
  		_setupLoadingIndicator();
  	};
  
  	ui.setIdle = function(isIdle) {
  		_isIdle = isIdle;
  		_togglePswpClass(_controls, 'ui--idle', isIdle);
  	};
  
  	ui.update = function() {
  		// Don't update UI if it's hidden
  		if(_controlsVisible && pswp.currItem) {
  			
  			ui.updateIndexIndicator();
  
  			if(_options.captionEl) {
  				_options.addCaptionHTMLFn(pswp.currItem, _captionContainer);
  
  				_togglePswpClass(_captionContainer, 'caption--empty', !pswp.currItem.title);
  			}
  
  			_overlayUIUpdated = true;
  
  		} else {
  			_overlayUIUpdated = false;
  		}
  
  		if(!_shareModalHidden) {
  			_toggleShareModal();
  		}
  
  		_countNumItems();
  	};
  
  	ui.updateFullscreen = function(e) {
  
  		if(e) {
  			// some browsers change window scroll position during the fullscreen
  			// so PhotoSwipe updates it just in case
  			setTimeout(function() {
  				pswp.setScrollOffset( 0, framework.getScrollY() );
  			}, 50);
  		}
  		
  		// toogle pswp--fs class on root element
  		framework[ (_fullscrenAPI.isFullscreen() ? 'add' : 'remove') + 'Class' ](pswp.template, 'pswp--fs');
  	};
  
  	ui.updateIndexIndicator = function() {
  		if(_options.counterEl) {
  			if(_options.getNumItemsFn() == 1) return;
  			var cursor = pswp.getCurrentIndex() * 14;
  			var zero = 7 * (_options.getNumItemsFn() - 1);
  			var indicator = _indexIndicator.firstChild;
  			indicator.style.transform = `translateX(${cursor - zero}px)`;
  		}
  	};
  	
  	ui.onGlobalTap = function(e) {
  		e = e || window.event;
  		var target = e.target || e.srcElement;
  
  		if(_blockControlsTap) {
  			return;
  		}
  
  		if(e.detail && e.detail.pointerType === 'mouse') {
  
  			// close gallery if clicked outside of the image
  			if(_hasCloseClass(target)) {
  				pswp.close();
  				return;
  			}
  
  			if(framework.hasClass(target, 'pswp__img')) {
  				if(pswp.getZoomLevel() === 1 && pswp.getZoomLevel() <= pswp.currItem.fitRatio) {
  					if(_options.clickToCloseNonZoomable) {
  						pswp.close();
  					}
  				} else {
  					pswp.toggleDesktopZoom(e.detail.releasePoint);
  				}
  			}
  			
  		} else {
  
  			// tap anywhere (except buttons) to toggle visibility of controls
  			if(_options.tapToToggleControls) {
  				if(_controlsVisible) {
  					ui.hideControls();
  				} else {
  					ui.showControls();
  				}
  			}
  
  			// tap to close gallery
  			if(_options.tapToClose && (framework.hasClass(target, 'pswp__img') || _hasCloseClass(target)) ) {
  				pswp.close();
  				return;
  			}
  			
  		}
  	};
  	ui.onMouseOver = function(e) {
  		e = e || window.event;
  		var target = e.target || e.srcElement;
  
  		// add class when mouse is over an element that should close the gallery
  		_togglePswpClass(_controls, 'ui--over-close', _hasCloseClass(target));
  	};
  
  	ui.hideControls = function() {
  		framework.addClass(_controls,'pswp__ui--hidden');
  		_controlsVisible = false;
  	};
  
  	ui.showControls = function() {
  		_controlsVisible = true;
  		if(!_overlayUIUpdated) {
  			ui.update();
  		}
  		framework.removeClass(_controls,'pswp__ui--hidden');
  	};
  
  	ui.supportsFullscreen = function() {
  		var d = document;
  		return !!(d.exitFullscreen || d.mozCancelFullScreen || d.webkitExitFullscreen || d.msExitFullscreen);
  	};
  
  	ui.getFullscreenAPI = function() {
  		var dE = document.documentElement,
  			api,
  			tF = 'fullscreenchange';
  
  		if (dE.requestFullscreen) {
  			api = {
  				enterK: 'requestFullscreen',
  				exitK: 'exitFullscreen',
  				elementK: 'fullscreenElement',
  				eventK: tF
  			};
  
  		} else if(dE.mozRequestFullScreen ) {
  			api = {
  				enterK: 'mozRequestFullScreen',
  				exitK: 'mozCancelFullScreen',
  				elementK: 'mozFullScreenElement',
  				eventK: 'moz' + tF
  			};
  
  			
  
  		} else if(dE.webkitRequestFullscreen) {
  			api = {
  				enterK: 'webkitRequestFullscreen',
  				exitK: 'webkitExitFullscreen',
  				elementK: 'webkitFullscreenElement',
  				eventK: 'webkit' + tF
  			};
  
  		} else if(dE.msRequestFullscreen) {
  			api = {
  				enterK: 'msRequestFullscreen',
  				exitK: 'msExitFullscreen',
  				elementK: 'msFullscreenElement',
  				eventK: 'MSFullscreenChange'
  			};
  		}
  
  		if(api) {
  			api.enter = function() { 
  				// disable close-on-scroll in fullscreen
  				_initalCloseOnScrollValue = _options.closeOnScroll; 
  				_options.closeOnScroll = false; 
  
  				if(this.enterK === 'webkitRequestFullscreen') {
  					pswp.template[this.enterK]( Element.ALLOW_KEYBOARD_INPUT );
  				} else {
  					return pswp.template[this.enterK](); 
  				}
  			};
  			api.exit = function() { 
  				_options.closeOnScroll = _initalCloseOnScrollValue;
  
  				return document[this.exitK](); 
  
  			};
  			api.isFullscreen = function() { return document[this.elementK]; };
  		}
  
  		return api;
  	};
  
  
  
  };
  return PhotoSwipeUI_Default;
  
  
  });