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/*!
By André Rinas, www.andrerinas.de
Documentation, www.simplelightbox.de
Available for use under the MIT License
1.16.3
*/
;( function( $, window, document, undefined )
{
'use strict';
$.fn.simpleLightbox = function( options )
{
var options = $.extend({
sourceAttr: 'href',
overlay: true,
spinner: true,
nav: true,
navText: ['‹', '›'],
captions: true,
captionDelay: 0,
captionSelector: 'img',
captionType: 'attr',
captionsData: 'title',
captionPosition: 'bottom',
captionClass: '',
close: true,
closeText: '×',
swipeClose: true,
showCounter: true,
fileExt: 'png|jpg|jpeg|gif',
animationSlide: true,
animationSpeed: 250,
preloading: true,
enableKeyboard: true,
loop: true,
rel: false,
docClose: true,
swipeTolerance: 50,
className: 'simple-lightbox',
widthRatio: 0.8,
heightRatio: 0.9,
scaleImageToRatio: false,
disableRightClick: false,
disableScroll: true,
alertError: true,
alertErrorMessage: 'Image not found, next image will be loaded',
additionalHtml: false,
history: true,
throttleInterval: 0,
doubleTapZoom: 2,
maxZoom: 10,
htmlClass: 'has-lightbox'
}, options);
// global variables
var touchDevice = ( 'ontouchstart' in window ),
pointerEnabled = window.navigator.pointerEnabled || window.navigator.msPointerEnabled,
touched = function( event ){
if( touchDevice ) return true;
if( !pointerEnabled || typeof event === 'undefined' || typeof event.pointerType === 'undefined' ) return false;
if( typeof event.MSPOINTER_TYPE_MOUSE !== 'undefined' ) {
if( event.MSPOINTER_TYPE_MOUSE != event.pointerType ) return true;
}
else {
if( event.pointerType != 'mouse' ) return true;
}
return false;
},
swipeDiff = 0,
swipeYDiff = 0,
curImg = $(),
transPrefix = function(){
var s = document.body || document.documentElement;
s = s.style;
if( s.WebkitTransition === '' ) return '-webkit-';
if( s.MozTransition === '' ) return '-moz-';
if( s.OTransition === '' ) return '-o-';
if( s.transition === '' ) return '';
return false;
},
opened = false,
loaded = [],
getRelated = function(rel, jqObj) {
var $related = jqObj.filter(function () {
return ($(this).attr('rel') === rel);
});
return $related;
},
objects = (options.rel && options.rel !== false) ? getRelated(options.rel, $(this)) : this,
transPrefix = transPrefix(),
globalScrollbarwidth = 0,
canTransisions = (transPrefix !== false) ? true : false,
supportsPushState = ('pushState' in history),
historyhasChanged = false,
historyUpdateTimeout,
winLoc = window.location,
getHash = function(){
return winLoc.hash.substring(1);
},
initialHash = getHash(),
updateHash = function(){
var hash = getHash(),
newHash = 'pid='+(index+1);
var newURL = winLoc.href.split('#')[0] + '#' + newHash;
if(supportsPushState){
history[historyhasChanged ? 'replaceState' : 'pushState']('', document.title, newURL);
}else {
if(historyhasChanged) {
winLoc.replace( newURL );
} else {
winLoc.hash = newHash;
}
}
historyhasChanged = true;
},
resetHash = function() {
if (supportsPushState) {
history.pushState('', document.title, winLoc.pathname + winLoc.search );
} else {
winLoc.hash = '';
}
clearTimeout(historyUpdateTimeout);
},
updateURL = function(){
if(!historyhasChanged) {
updateHash(); // first time
} else {
historyUpdateTimeout = setTimeout(updateHash, 800);
}
},
throttle = function(func, limit) {
var inThrottle;
return function() {
var args = arguments;
var context = this;
if (!inThrottle) {
func.apply(context, args);
inThrottle = true;
setTimeout(function() {
return inThrottle = false;
}, limit);
}
};
},
prefix = 'simplelb',
overlay = $('<div>').addClass('sl-overlay'),
closeBtn = $('<button>').addClass('sl-close').html(options.closeText),
spinner = $('<div>').addClass('sl-spinner').html('<div></div>'),
nav = $('<div>').addClass('sl-navigation').html('<button class="sl-prev">'+options.navText[0]+'</button><button class="sl-next">'+options.navText[1]+'</button>'),
counter = $('<div>').addClass('sl-counter').html('<span class="sl-current"></span>/<span class="sl-total"></span>'),
animating = false,
index = 0,
startIndex = 0,
caption = $('<div>').addClass('sl-caption '+options.captionClass+' pos-'+options.captionPosition),
image = $('<div>').addClass('sl-image'),
wrapper = $('<div>').addClass('sl-wrapper').addClass(options.className),
isValidLink = function( element ){
if(!options.fileExt) return true;
var filEext = /\.([0-9a-z]+)(?=[?#])|(\.)(?:[\w]+)$/gmi;
var testExt = $( element ).attr( options.sourceAttr ).match(filEext);
return testExt && $( element ).prop( 'tagName' ).toLowerCase() == 'a' && ( new RegExp( '\.(' + options.fileExt + ')$', 'i' ) ).test( testExt );
},
setup = function(){
if(options.close) closeBtn.appendTo(wrapper);
if(options.showCounter){
if(objects.length > 1){
counter.appendTo(wrapper);
counter.find('.sl-total').text(objects.length);
}
}
if(options.nav) nav.appendTo(wrapper);
if(options.spinner) spinner.appendTo(wrapper);
},
openImage = function(elem){
elem.trigger($.Event('show.simplelightbox'));
if(options.disableScroll) globalScrollbarwidth = handleScrollbar('hide');
if(options.htmlClass && options.htmlClass != '') $('html').addClass(options.htmlClass);
wrapper.appendTo('body');
image.appendTo(wrapper);
if(options.overlay) overlay.appendTo($('body'));
animating = true;
index = objects.index(elem);
curImg = $( '<img/>' )
.hide()
.attr('src', elem.attr(options.sourceAttr))
.attr('data-scale', 1)
.attr('data-translate-x', 0)
.attr('data-translate-y', 0);
if(loaded.indexOf(elem.attr(options.sourceAttr)) == -1){
loaded.push(elem.attr(options.sourceAttr));
}
image.html('').attr('style','');
curImg.appendTo(image);
addEvents();
overlay.fadeIn('fast');
$('.sl-close').fadeIn('fast');
spinner.show();
nav.fadeIn('fast');
$('.sl-wrapper .sl-counter .sl-current').text(index +1);
counter.fadeIn('fast');
adjustImage();
if(options.preloading) preload();
setTimeout( function(){ elem.trigger($.Event('shown.simplelightbox')); } ,options.animationSpeed);
},
adjustImage = function(dir){
if(!curImg.length) return;
var tmpImage = new Image(),
windowWidth = window.innerWidth * options.widthRatio,
windowHeight = window.innerHeight * options.heightRatio;
tmpImage.src = curImg.attr( 'src' );
curImg.data('scale',1);
curImg.data('translate-x',0);
curImg.data('translate-y',0);
zoomPanElement(0,0,1);
$(tmpImage).on('error',function(ev){
//no image was found
objects.eq(index).trigger($.Event('error.simplelightbox'));
animating = false;
opened = true;
spinner.hide();
var dirDefinined = (dir == 1 || dir == -1);
if(startIndex === index && dirDefinined){
close();
return;
}
if(options.alertError){
alert(options.alertErrorMessage);
}
if(dirDefinined){
loadImage(dir);
} else {
loadImage(1);
}
return;
});
tmpImage.onload = function() {
if (typeof dir !== 'undefined') {
objects.eq(index)
.trigger($.Event('changed.simplelightbox'))
.trigger($.Event( (dir===1?'nextDone':'prevDone')+'.simplelightbox'));
}
// history
if(options.history){
updateURL();
}
if(loaded.indexOf(curImg.attr( 'src' )) == -1){
loaded.push(curImg.attr( 'src' ));
}
var imageWidth = tmpImage.width,
imageHeight = tmpImage.height;
if( options.scaleImageToRatio || imageWidth > windowWidth || imageHeight > windowHeight ){
var ratio = imageWidth / imageHeight > windowWidth / windowHeight ? imageWidth / windowWidth : imageHeight / windowHeight;
imageWidth /= ratio;
imageHeight /= ratio;
}
$('.sl-image').css({
'top': ( window.innerHeight - imageHeight ) / 2 + 'px',
'left': ( window.innerWidth - imageWidth - globalScrollbarwidth)/ 2 + 'px',
'width': imageWidth + 'px',
'height': imageHeight + 'px'
});
spinner.hide();
curImg
.fadeIn('fast');
opened = true;
var cSel = (options.captionSelector == 'self') ? objects.eq(index) : objects.eq(index).find(options.captionSelector);
var captionText;
if(options.captionType == 'data'){
captionText = cSel.data(options.captionsData);
} else if(options.captionType == 'text'){
captionText = cSel.html();
} else {
captionText = cSel.prop(options.captionsData);
}
if(!options.loop) {
if(index === 0){ $('.sl-prev').hide();}
if(index >= objects.length -1) {$('.sl-next').hide();}
if(index > 0){ $('.sl-prev').show(); }
if(index < objects.length -1){ $('.sl-next').show(); }
}
if(objects.length == 1) $('.sl-prev, .sl-next').hide();
if(dir == 1 || dir == -1){
var css = { 'opacity': 1.0 };
if( options.animationSlide ) {
if( canTransisions ) {
slide(0, 100 * dir + 'px');
setTimeout( function(){ slide( options.animationSpeed / 1000, 0 + 'px'); }, 50 );
}
else {
css.left = parseInt( $('.sl-image').css( 'left' ) ) + 100 * dir + 'px';
}
}
$('.sl-image').animate( css, options.animationSpeed, function(){
animating = false;
setCaption(captionText, imageWidth);
});
} else {
animating = false;
setCaption(captionText, imageWidth);
}
if(options.additionalHtml && $('.sl-additional-html').length === 0){
$('<div>').html(options.additionalHtml).addClass('sl-additional-html').appendTo($('.sl-image'));
}
};
},
setCaption = function(captiontext, imageWidth){
if(captiontext !== '' && typeof captiontext !== "undefined" && options.captions){
caption.html(captiontext).css({'width': imageWidth + 'px'}).hide().appendTo($('.sl-image')).delay(options.captionDelay).fadeIn('fast');
}
},
slide = function(speed, pos){
var styles = {};
styles[transPrefix + 'transform'] = 'translateX(' + pos + ')';
styles[transPrefix + 'transition'] = transPrefix + 'transform ' + speed + 's linear';
$('.sl-image').css(styles);
},
zoomPanElement = function(targetOffsetX, targetOffsetY, targetScale) {
var styles = {};
styles[transPrefix + 'transform'] = 'translate(' + targetOffsetX + ',' + targetOffsetY+ ') scale('+targetScale+')';
curImg.css(styles);
},
minMax = function(value, min, max) {
return (value < min) ? min : (value > max) ? max : value;
},
setZoomData = function(initialScale,targetOffsetX,targetOffsetY) {
curImg.data('scale',initialScale);
curImg.data('translate-x',targetOffsetX);
curImg.data('translate-y',targetOffsetY);
},
addEvents = function(){
// resize/responsive
$( window ).on( 'resize.'+prefix, adjustImage );
// close lightbox on close btn
$( document ).on('click.'+prefix+ ' touchstart.'+prefix, '.sl-close', function(e){
e.preventDefault();
if(opened){ close();}
});
if(options.history){
setTimeout(function() {
$(window).on('hashchange.'+prefix,function(){
if(opened){
if(getHash() === initialHash) {
close();
return;
}
}
});
}, 40);
}
// nav-buttons
nav.on('click.'+prefix, 'button', throttle(function(e){
e.preventDefault();
swipeDiff = 0;
loadImage( $(this).hasClass('sl-next') ? 1 : -1 );
}, options.throttleInterval));
// touch helpers
var swipeStart = 0,
swipeEnd = 0,
swipeYStart = 0,
swipeYEnd = 0,
zoomed = false,
mousedown = false,
imageLeft = 0,
containerHeight,
containerWidth,
containerOffsetX,
containerOffsetY,
imgHeight,
imgWidth,
capture = false,
initialOffsetX,
initialOffsetY,
initialPointerOffsetX,
initialPointerOffsetY,
initialPointerOffsetX2,
initialPointerOffsetY2,
initialScale = minMax(1, 1, options.maxZoom),
initialPinchDistance,
pointerOffsetX,
pointerOffsetY,
pointerOffsetX2,
pointerOffsetY2,
targetOffsetX,
targetOffsetY,
targetScale,
pinchOffsetX,
pinchOffsetY,
limitOffsetX,
limitOffsetY,
scaleDifference,
targetPinchDistance,
touchCount,
doubleTapped = false,
touchmoveCount = 0;
image
.on( 'touchstart.'+prefix+' mousedown.'+prefix, function(e)
{
if (e.target.tagName === 'A' && e.type == 'touchstart') {
return true;
}
e = e.originalEvent;
if(e.type == 'mousedown') {
} else {
touchCount = e.touches.length;
initialPointerOffsetX = e.touches[0].clientX;
initialPointerOffsetY = e.touches[0].clientY;
containerHeight = image.height();
containerWidth = image.width();
imgHeight = curImg.height();
imgWidth = curImg.width();
containerOffsetX = image.position().left;
containerOffsetY = image.position().top;
if (touchCount === 1) /* Single touch */ {
if(!doubleTapped) {
doubleTapped = true;
setTimeout(function(){
doubleTapped = false;
}, 300);
} else {
curImg.addClass('sl-transition');
if(!zoomed) {
initialScale = options.doubleTapZoom;
setZoomData(0,0, initialScale);
zoomPanElement(0 + "px", 0 + "px", initialScale);
$('.sl-caption').fadeOut(200);
zoomed = true;
} else {
initialScale = 1;
setZoomData(0,0,initialScale);
zoomPanElement(0 + "px", 0 + "px", initialScale);
zoomed = false;
}
setTimeout(function(){
curImg.removeClass('sl-transition');
}, 200);
return false;
}
initialOffsetX = parseFloat(curImg.data('translate-x'));
initialOffsetY = parseFloat(curImg.data('translate-y'));
}
else if (touchCount === 2) /* Pinch */ {
initialPointerOffsetX2 = e.touches[1].clientX;
initialPointerOffsetY2 = e.touches[1].clientY;
initialOffsetX = parseFloat(curImg.data('translate-x'));
initialOffsetY = parseFloat(curImg.data('translate-y'));
pinchOffsetX = (initialPointerOffsetX + initialPointerOffsetX2) / 2;
pinchOffsetY = (initialPointerOffsetY + initialPointerOffsetY2) / 2;
initialPinchDistance = Math.sqrt(((initialPointerOffsetX - initialPointerOffsetX2) * (initialPointerOffsetX - initialPointerOffsetX2)) + ((initialPointerOffsetY - initialPointerOffsetY2) * (initialPointerOffsetY - initialPointerOffsetY2)));
}
capture = true;
}
if(mousedown) return true;
if( canTransisions ) imageLeft = parseInt( image.css( 'left' ) );
mousedown = true;
swipeDiff = 0;
swipeYDiff = 0;
swipeStart = e.pageX || e.touches[ 0 ].pageX;
swipeYStart = e.pageY || e.touches[ 0 ].pageY;
return false;
})
.on( 'touchmove.'+prefix+' mousemove.'+prefix+' MSPointerMove', function(e)
{
if(!mousedown) return true;
e.preventDefault();
e = e.originalEvent;
/* Initialize helpers */
if(e.type == 'touchmove') {
if(capture === false) return false;
pointerOffsetX = e.touches[0].clientX;
pointerOffsetY = e.touches[0].clientY;
touchCount = e.touches.length;
touchmoveCount++;
if (touchCount > 1) /* Pinch */ {
pointerOffsetX2 = e.touches[1].clientX;
pointerOffsetY2 = e.touches[1].clientY;
targetPinchDistance = Math.sqrt(((pointerOffsetX - pointerOffsetX2) * (pointerOffsetX - pointerOffsetX2)) + ((pointerOffsetY - pointerOffsetY2) * (pointerOffsetY - pointerOffsetY2)));
if (initialPinchDistance === null) {
initialPinchDistance = targetPinchDistance;
}
if (Math.abs(initialPinchDistance - targetPinchDistance) >= 1) {
/* Initialize helpers */
targetScale = minMax(targetPinchDistance / initialPinchDistance * initialScale, 1, options.maxZoom);
limitOffsetX = ((imgWidth * targetScale) - containerWidth) / 2;
limitOffsetY = ((imgHeight * targetScale) - containerHeight) / 2;
scaleDifference = targetScale - initialScale;
targetOffsetX = (imgWidth * targetScale) <= containerWidth ? 0: minMax(initialOffsetX - ((((((pinchOffsetX - containerOffsetX) - (containerWidth / 2)) - initialOffsetX) / (targetScale - scaleDifference))) * scaleDifference), limitOffsetX * (-1), limitOffsetX);
targetOffsetY = (imgHeight * targetScale) <= containerHeight ? 0 : minMax(initialOffsetY - ((((((pinchOffsetY - containerOffsetY) - (containerHeight / 2)) - initialOffsetY) / (targetScale - scaleDifference))) * scaleDifference), limitOffsetY * (-1), limitOffsetY);
zoomPanElement(targetOffsetX + "px", targetOffsetY + "px", targetScale);
if (targetScale > 1) {
zoomed = true;
$('.sl-caption').fadeOut(200);
}
initialPinchDistance = targetPinchDistance;
initialScale = targetScale;
initialOffsetX = targetOffsetX;
initialOffsetY = targetOffsetY;
}
} else {
targetScale = initialScale;
limitOffsetX = ((imgWidth * targetScale) - containerWidth) / 2;
limitOffsetY = ((imgHeight * targetScale) - containerHeight) / 2;
targetOffsetX = (imgWidth * targetScale) <= containerWidth ? 0 : minMax(pointerOffsetX - (initialPointerOffsetX - initialOffsetX), limitOffsetX * (-1), limitOffsetX);
targetOffsetY = (imgHeight * targetScale) <= containerHeight ? 0 : minMax(pointerOffsetY - (initialPointerOffsetY - initialOffsetY), limitOffsetY * (-1), limitOffsetY);
if (Math.abs(targetOffsetX) === Math.abs(limitOffsetX)) {
initialOffsetX = targetOffsetX;
initialPointerOffsetX = pointerOffsetX;
}
if (Math.abs(targetOffsetY) === Math.abs(limitOffsetY)) {
initialOffsetY = targetOffsetY;
initialPointerOffsetY = pointerOffsetY;
}
setZoomData(initialScale,targetOffsetX,targetOffsetY);
zoomPanElement(targetOffsetX + "px", targetOffsetY + "px", targetScale);
}
}
if(!zoomed) {
swipeEnd = e.pageX || e.touches[ 0 ].pageX;
swipeYEnd = e.pageY || e.touches[ 0 ].pageY;
swipeDiff = swipeStart - swipeEnd;
swipeYDiff = swipeYStart - swipeYEnd;
if( options.animationSlide ) {
if( canTransisions ) slide( 0, -swipeDiff + 'px' );
else image.css( 'left', imageLeft - swipeDiff + 'px' );
}
}
})
.on( 'touchend.'+prefix+' mouseup.'+prefix+' touchcancel.'+prefix+' mouseleave.'+prefix+' pointerup pointercancel MSPointerUp MSPointerCancel',function(e)
{
e = e.originalEvent;
if(touchDevice && e.type =='touchend') {
touchCount = e.touches.length;
if (touchCount === 0) /* No touch */ {
/* Set attributes */
setZoomData(initialScale,targetOffsetX,targetOffsetY);
if(initialScale == 1) {
zoomed = false;
$('.sl-caption').fadeIn(200);
}
initialPinchDistance = null;
capture = false;
} else if (touchCount === 1) /* Single touch */ {
initialPointerOffsetX = e.touches[0].clientX;
initialPointerOffsetY = e.touches[0].clientY;
} else if (touchCount > 1) /* Pinch */ {
initialPinchDistance = null;
}
}
if(mousedown){
mousedown = false;
var possibleDir = true;
if(!options.loop) {
if(index === 0 && swipeDiff < 0){ possibleDir = false; }
if(index >= objects.length -1 && swipeDiff > 0) { possibleDir = false; }
}
if( Math.abs( swipeDiff ) > options.swipeTolerance && possibleDir ) {
loadImage( swipeDiff > 0 ? 1 : -1 );
}
else if( options.animationSlide )
{
if( canTransisions ) slide( options.animationSpeed / 1000, 0 + 'px' );
else image.animate({ 'left': imageLeft + 'px' }, options.animationSpeed / 2 );
}
if( options.swipeClose && Math.abs(swipeYDiff) > 50 && Math.abs( swipeDiff ) < options.swipeTolerance) {
close();
}
}
});
},
removeEvents = function(){
nav.off('click', 'button');
$( document ).off('click.'+prefix, '.sl-close');
$( window ).off( 'resize.'+prefix);
$( window ).off( 'hashchange.'+prefix);
},
preload = function(){
var next = (index+1 < 0) ? objects.length -1: (index+1 >= objects.length -1) ? 0 : index+1,
prev = (index-1 < 0) ? objects.length -1: (index-1 >= objects.length -1) ? 0 : index-1;
$( '<img />' ).attr( 'src', objects.eq(next).attr( options.sourceAttr ) ).on('load', function(){
if(loaded.indexOf($(this).attr('src')) == -1){
loaded.push($(this).attr('src'));
}
objects.eq(index).trigger($.Event('nextImageLoaded.simplelightbox'));
});
$( '<img />' ).attr( 'src', objects.eq(prev).attr( options.sourceAttr ) ).on('load', function(){
if(loaded.indexOf($(this).attr('src')) == -1){
loaded.push($(this).attr('src'));
}
objects.eq(index).trigger($.Event('prevImageLoaded.simplelightbox'));
});
},
loadImage = function(dir){
objects.eq(index)
.trigger($.Event('change.simplelightbox'))
.trigger($.Event( (dir===1?'next':'prev')+'.simplelightbox'));
var newIndex = index + dir;
if(animating || (newIndex < 0 || newIndex >= objects.length) && options.loop === false ) return;
index = (newIndex < 0) ? objects.length -1: (newIndex > objects.length -1) ? 0 : newIndex;
$('.sl-wrapper .sl-counter .sl-current').text(index +1);
var css = { 'opacity': 0 };
if( options.animationSlide ) {
if( canTransisions ) slide(options.animationSpeed / 1000, ( -100 * dir ) - swipeDiff + 'px');
else css.left = parseInt( $('.sl-image').css( 'left' ) ) + -100 * dir + 'px';
}
$('.sl-image').animate( css, options.animationSpeed, function(){
setTimeout( function(){
// fadeout old image
var elem = objects.eq(index);
curImg
.attr('src', elem.attr(options.sourceAttr));
if(loaded.indexOf(elem.attr(options.sourceAttr)) == -1){
spinner.show();
}
$('.sl-caption').remove();
adjustImage(dir);
if(options.preloading) preload();
}, 100);
});
},
close = function(){
if(animating) return;
var elem = objects.eq(index),
triggered = false;
elem.trigger($.Event('close.simplelightbox'));
if(options.history){
resetHash();
}
$('.sl-image img, .sl-overlay, .sl-close, .sl-navigation, .sl-image .sl-caption, .sl-counter').fadeOut('fast', function(){
if(options.disableScroll) handleScrollbar('show');
if(options.htmlClass && options.htmlClass != '') $('html').removeClass(options.htmlClass);
$('.sl-wrapper, .sl-overlay').remove();
removeEvents();
if(!triggered) elem.trigger($.Event('closed.simplelightbox'));
triggered = true;
});
curImg = $();
opened = false;
animating = false;
},
handleScrollbar = function(type){
var scrollbarWidth = 0;
if(type == 'hide'){
var fullWindowWidth = window.innerWidth;
if (!fullWindowWidth) {
var documentElementRect = document.documentElement.getBoundingClientRect();
fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left);
}
if(document.body.clientWidth < fullWindowWidth){
var scrollDiv = document.createElement('div'),
padding = parseInt($('body').css('padding-right'),10);
scrollDiv.className = 'sl-scrollbar-measure';
$('body').append(scrollDiv);
scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
$(document.body)[0].removeChild(scrollDiv);
$('body').data('padding',padding);
if(scrollbarWidth > 0){
$('body').addClass('hidden-scroll').css({'padding-right':padding+scrollbarWidth});
}
}
} else {
$('body').removeClass('hidden-scroll').css({'padding-right':$('body').data('padding')});
}
return scrollbarWidth;
};
// events
setup();
// open lightbox
objects.on( 'click.'+prefix, function( e ){
if(isValidLink(this)){
e.preventDefault();
if(animating) return false;
var elem = $(this);
startIndex = objects.index(elem);
openImage(elem);
}
});
// close on click on doc
$( document ).on('click.'+prefix+ ' touchstart.'+prefix, function(e){
if(opened){
if((options.docClose && $(e.target).closest('.sl-image').length === 0 && $(e.target).closest('.sl-navigation').length === 0)){
close();
}
}
});
// disable rightclick
if(options.disableRightClick){
$( document ).on('contextmenu', '.sl-image img', function(e){
return false;
});
}
// keyboard-control
if( options.enableKeyboard ){
$( document ).on( 'keyup.'+prefix, throttle(function( e ){
swipeDiff = 0;
// keyboard control only if lightbox is open
var key = e.keyCode;
if(animating && key == 27) {
curImg.attr('src', '');
animating = false;
close();
}
if(opened){
e.preventDefault();
if( key == 27 ) {
close();
}
if( key == 37 || e.keyCode == 39 ) {
loadImage( e.keyCode == 39 ? 1 : -1 );
}
}
}, options.throttleInterval));
}
// Public methods
this.open = function(elem){
elem = elem || $(this[0]);
startIndex = objects.index(elem);
openImage(elem);
};
this.next = function(){
loadImage( 1 );
};
this.prev = function(){
loadImage( -1 );
};
this.close = function(){
close();
};
this.destroy = function(){
$( document ).off('click.'+prefix).off('keyup.'+prefix);
close();
$('.sl-overlay, .sl-wrapper').remove();
this.off('click');
};
this.refresh = function(){
this.destroy();
$(this).simpleLightbox(options);
};
return this;
};
})( jQuery, window, document );