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lightGallery.js
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lightGallery.js
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/** ==========================================================
* jquery lightGallery.js v1.0
* http://sachinchoolur.github.io/lightGallery/
* Released under the Apache License - http://opensource.org/licenses/Apache-2.0
=========================================================/**/
;(function($){
"use strict";
$.fn.lightGallery = function(options) {
var defaults = {
mode:'slide',
useCSS : true,
easing: 'ease',//'cubic-bezier(0.25, 0, 0.25, 1)',//
speed: 1000,
loop: false,
auto: false,
pause: 4000,
escKey:true,
rel:false,
exThumbImage: false,
thumbnail: true,
caption:false,
desc:false,
controls:true,
hideControlOnEnd:false,
mobileSrc: false,
mobileSrcMaxWidth :640,
//touch
swipeThreshold: 50,
vimeoColor : 'CCCCCC',
videoAutoplay:true,
videoMaxWidth:855,
dynamic:false,
//callbacks
dynamicEl : [],
onOpen: function() {},
onSlideBefore: function() {},
onSlideAfter: function() {},
onSlideNext: function() {},
onSlidePrev: function() {},
onBeforeClose: function(){},
onCloseAfter: function(){}
},
el = $(this),
$children,
index,
lightGalleryOn = false,
html = '<div id="lightGallery-outer"><div id="lightGallery-Gallery"><div id="lightGallery-slider"></div><a id="lightGallery-close" class="close"></a></div></div>',
isTouch = document.createTouch !== undefined || ('ontouchstart' in window) || ('onmsgesturechange' in window) || navigator.msMaxTouchPoints,
$gallery, $galleryCont, $slider, $slide, $prev, $next, prevIndex, $thumb_cont, $thumb, windowWidth, interval, usingThumb=false, aTiming= false, aSpeed = false;
var settings = $.extend( true, {}, defaults, options);
var lightGallery = {
init: function(){
el.each(function() {
var $this = $(this);
if(settings.dynamic == true){
$children = settings.dynamicEl;
index = 0;
prevIndex = index;
setUp.init(index);
} else{
$children = $(this).children();
$children.click(function(e){
if(settings.rel == true && $this.data('rel')){
var rel = $this.data('rel');
$children = $('[data-rel="'+rel+'"]').children();
}else{
$children = $this.children();
}
e.preventDefault();
e.stopPropagation();
index = $children.index(this);
prevIndex = index;
setUp.init(index);
});
}
});
},
};
var setUp = {
init: function(){
this.start();
this.build();
},
start: function(){
this.structure();
this.touch();
this.enableTouch();
this.getWidth();
this.closeSlide();
},
build: function(){
this.loadContent(index);
this.addCaption();
this.addDesc();//description
this.slideTo();
this.buildThumbnail();
this.keyPress();
this.slide(index);
setTimeout(function(){
$gallery.addClass('opacity');
},50);
},
structure: function(){
$('body').append(html).addClass('lightGallery');
$galleryCont = $('#lightGallery-outer');
$gallery = $('#lightGallery-Gallery');
$slider = $gallery.find('#lightGallery-slider');
var slideList = '';
if(settings.dynamic == true){
for(var i = 0; i<settings.dynamicEl.length; i++){
slideList += '<div class="lightGallery-slide"></div>';
}
}else{
$children.each(function() {
slideList += '<div class="lightGallery-slide"></div>';
});
}
$slider.append(slideList);
$slide = $gallery.find('.lightGallery-slide');
},
closeSlide: function(){
var $this = this;
$('#lightGallery-close').bind('click touchend', function(){
$this.destroy();
});
},
getWidth: function(){
var resizeWindow = function(){
windowWidth = $(window).width();
};
$(window).bind('resize',resizeWindow());
},
doCss : function() {
var support = function(){
var transition = ['transition', 'MozTransition', 'WebkitTransition', 'OTransition', 'msTransition', 'KhtmlTransition'];
var root=document.documentElement;
for (var i=0; i<transition.length; i++){
if (transition[i] in root.style){
//cssPrefix = transition[i].replace('Transition', '').toLowerCase();
//cssPrefix == 'transition' ? cssPrefix = 'transition' : cssPrefix = ('-'+cssPrefix+'-transition');
return true;
}
}
};
if(settings.useCSS && support() ){
return true;
}
return false;
},
enableTouch : function(){
if ( isTouch ){
var $this = this,
distance,
swipeThreshold = settings.swipeThreshold,
startCoords = {},
endCoords = {};
$('body').bind('touchstart', function(e){
$(this).addClass('touch');
endCoords = e.originalEvent.targetTouches[0];
startCoords.pageX = e.originalEvent.targetTouches[0].pageX;
$('.touch').bind('touchmove',function(e){
e.preventDefault();
e.stopPropagation();
endCoords = e.originalEvent.targetTouches[0];
});
return false;
}).bind('touchend',function(e){
e.preventDefault();
e.stopPropagation();
distance = endCoords.pageX - startCoords.pageX;
if( distance >= swipeThreshold ){
$this.prevSlide();
clearInterval(interval);
}
else if( distance <= - swipeThreshold ){
$this.nextSlide();
clearInterval(interval);
}
$('.touch').off('touchmove').removeClass('touch');
});
}
},
touch:function(){
var xStart,xEnd;
var $this = this;
$('.lightGallery').bind('mousedown',function(e){
e.stopPropagation();
e.preventDefault();
xStart = e.pageX;
});
$('.lightGallery').bind('mouseup',function(e){
e.stopPropagation();
e.preventDefault();
xEnd = e.pageX;
if(xEnd-xStart>20){
$this.nextSlide();
}else if(xStart-xEnd>20){
$this.prevSlide();
}
});
},
isVideo: function(src){
var youtube = src.match(/youtube\.com\/watch\?v=([a-zA-Z0-9\-_]+)/);
var vimeo = src.match(/vimeo\.com\/([0-9]*)/);
if( youtube || vimeo){
return true;
}
},
loadVideo: function(src,a,_id){
var youtube = src.match(/watch\?v=([a-zA-Z0-9\-_]+)/);
var vimeo = src.match(/vimeo\.com\/([0-9]*)/);
var video = '';
if(youtube){
if(settings.videoAutoplay === true && a === true){
a = '?autoplay=1&rel=0&wmode=opaque';
}else{
a = '?wmode=opaque';
}
video = '<iframe id="video'+_id+'" width="560" height="315" src="//www.youtube.com/embed/'+youtube[1]+a+'" frameborder="0" allowfullscreen></iframe>';
}else if(vimeo){
if(settings.videoAutoplay === true && a === true){
a = 'autoplay=1&';
}else{
a = '';
}
video = '<iframe id="video'+_id+'" width="560" height="315" src="http://player.vimeo.com/video/'+vimeo[1]+'?'+a+'byline=0&portrait=0&color='+settings.vimeoColor+'" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>';
}
return '<div class="video_cont" style="max-width:'+settings.videoMaxWidth+'px !important;"><div class="video">'+video+'</div></div>';
},
loadContent : function (index){
var $this = this;
var i,j,ob,l= $children.length - index;
var src;
$this.autoStart();
if(settings.mobileSrc===true && windowWidth <= settings.mobileSrcMaxWidth){
if(settings.dynamic == true){
src = settings.dynamicEl[0]['mobileSrc'];
}else{
src = $children.eq(index).attr('data-responsive-src');
}
}
else{
if(settings.dynamic == true){
src = settings.dynamicEl[0]['src'];
}else{
src = $children.eq(index).attr('data-src');
}
}
if(!$this.isVideo(src)){
$slide.eq(index).prepend('<img src="'+src+'" />');
ob = $('img');
}
else{
$slide.eq(index).prepend($this.loadVideo(src,true,index));
ob = $('iframe');
if(settings.auto && settings.videoAutoplay === true){
clearInterval(interval);
}
}
if($children.length > 1){
$slide.eq(index).find(ob).on('load error',function(){
for (i=0; i<=index-1; i++){
var src;
if(settings.mobileSrc===true && windowWidth <= settings.mobileSrcMaxWidth){
if(settings.dynamic == true){
src = settings.dynamicEl[index-i-1]['mobileSrc'];
}else{
src = $children.eq(index-i-1).attr('data-responsive-src');
}
}
else{
if(settings.dynamic == true){
src = settings.dynamicEl[index-i-1]['src'];
}else{
src = $children.eq(index-i-1).attr('data-src');
}
}
if(!$this.isVideo(src)){
$slide.eq(index-i-1).prepend('<img src="'+src+'" />');
}
else{
$slide.eq(index-i-1).prepend($this.loadVideo(src,false,index-i-1));
}
}
for (j=1; j<l; j++){
var src;
if(settings.mobileSrc===true && windowWidth <= settings.mobileSrcMaxWidth){
if(settings.dynamic == true){
src = settings.dynamicEl[index+j]['mobileSrc'];
}else{
src = $children.eq(index+j).attr('data-responsive-src');
}
}
else{
if(settings.dynamic == true){
src = settings.dynamicEl[index+j]['src'];
}else{
src = $children.eq(index+j).attr('data-src');
}
}
if(!$this.isVideo(src)){
$slide.eq(index+j).prepend('<img src="'+src+'" />');
}
else{
$slide.eq(index+j).prepend($this.loadVideo(src,false,index+j));
}
}
});
}
},
addCaption:function(){
if(settings.caption === true){
var i, title = false;
for(i=0;i < $children.length; i++){
if(settings.dynamic == true){
title = settings.dynamicEl[i]['caption'];
}else{
title = $children.eq(i).attr('data-title');
}
if(typeof title == 'undefined' || title == null){
title = 'image '+i+'';
}
$slide.eq(i).append('<div class="info group"><span class="title">'+title+'</span></div>');
}
}
},
addDesc:function(){
if(settings.desc === true){
var i, description = false;
for(i=0;i < $children.length; i++){
if(settings.dynamic == true){
description = settings.dynamicEl[i]['desc'];
}else{
description = $children.eq(i).attr('data-desc');;
}
if(typeof description == 'undefined' || description == null){
description = 'image '+i+'';
}
if(settings.caption === false){
$slide.eq(i).append('<div class="info group"><span class="desc">'+description+'</span></div>');
}else{
$slide.eq(i).find('.info').append('<span class="desc">'+description+'</span>');
}
}
}
},
buildThumbnail: function(){
if(settings.thumbnail===true && $children.length > 1){
var $this = this;
$gallery.append('<div class="thumb_cont"><div class="thumb_info"><span class="close ib"><i class="bUi-iCn-rMv-16" aria-hidden="true"></i></span></div><div class="thumb_inner"></div></div>');
$thumb_cont = $gallery.find('.thumb_cont');
$prev.after('<a class="cLthumb"></a>');
$gallery.find('.cLthumb').bind('click touchend', function(){
$thumb_cont.addClass('open');
if($this.doCss() && settings.mode === 'slide'){
$slide.eq(index).prevAll().removeClass('nextSlide').addClass('prevSlide');
$slide.eq(index).nextAll().removeClass('prevSlide').addClass('nextSlide');
}
});
$gallery.find('.close').bind('click touchend', function(){
$thumb_cont.removeClass('open');
});
var thumbInfo = $gallery.find('.thumb_info');
var $thumb_inner = $gallery.find('.thumb_inner');
var thumbList = '';
var thumbImg;
if(settings.dynamic == true){
for(var i = 0; i<settings.dynamicEl.length; i++){
thumbImg = settings.dynamicEl[i]['thumb'];
thumbList += '<div class="thumb"><img src="'+thumbImg+'" /></div>';
}
}else{
$children.each(function() {
if(settings.exThumbImage === false || typeof $(this).attr(settings.exThumbImage) == 'undefined' || $(this).attr(settings.exThumbImage) == null){
thumbImg = $(this).find('img').attr('src');
}
else{
thumbImg = $(this).attr(settings.exThumbImage);
}
thumbList += '<div class="thumb"><img src="'+thumbImg+'" /></div>';
});
}
$thumb_inner.append(thumbList);
$thumb = $thumb_inner.find('.thumb');
$thumb.bind('click touchend', function(){
usingThumb = true;
var index = $(this).index();
$thumb.removeClass('active');
$(this).addClass('active');
$this.slide(index);
clearInterval(interval);
});
thumbInfo.prepend('<span class="ib count">All photos ('+$thumb.length+')</span>');
}
},
slideTo : function(){
var $this = this;
if(settings.controls === true && $children.length > 1){
$gallery.append('<div id="lightGallery-action"><a id="lightGallery-prev"></a><a id="lightGallery-next"></a></div>');
$prev = $gallery.find('#lightGallery-prev');
$next = $gallery.find('#lightGallery-next');
$prev.bind('click touchend', function(){
$this.prevSlide();
clearInterval(interval);
});
$next.bind('click touchend', function(){
$this.nextSlide();
clearInterval(interval);
});
}
},
autoStart: function(){
var $this = this;
if(settings.auto === true){
interval = setInterval(function(){
if(index+1 < $children.length){
index = index;
}
else{
index = -1;
}
index++;
$this.slide(index);
}, settings.pause);
}
},
keyPress : function(){
var $this = this;
$(window).bind('keyup', function(e){
e.preventDefault();
e.stopPropagation();
if (e.keyCode === 37){
$this.prevSlide();
clearInterval(interval);
}
if (e.keyCode === 38 && settings.thumbnail===true){
if(!$thumb_cont.hasClass('open')){
if($this.doCss() && settings.mode === 'slide'){
$slide.eq(index).prevAll().removeClass('nextSlide').addClass('prevSlide');
$slide.eq(index).nextAll().removeClass('prevSlide').addClass('nextSlide');
}
$thumb_cont.addClass('open');
}
}
else if (e.keyCode===39){
$this.nextSlide();
clearInterval(interval);
}
if (e.keyCode === 40 && settings.thumbnail===true){
if($thumb_cont.hasClass('open')){
$thumb_cont.removeClass('open');
}
}
else if (settings.escKey === true && e.keyCode === 27) {
if(settings.thumbnail===true && $thumb_cont.hasClass('open') ){
$thumb_cont.removeClass('open');
}
else{
$this.destroy();
}
}
});
},
nextSlide : function (){
var $this = this;
index = $slide.index($slide.eq(prevIndex));
if(index+1 < $children.length){
index++;
$this.slide(index);
}
else{
if(settings.loop){
index = 0;
$this.slide(index);
}
else if(settings.mode==='fade' && settings.thumbnail===true && $children.length > 1){
$thumb_cont.addClass('open');
}
}
settings.onSlideNext.call( this );
},
prevSlide : function (){
var $this = this;
index = $slide.index($slide.eq(prevIndex));
if(index > 0){
index--;
$this.slide(index);
}
else{
if(settings.loop){
index = $children.length -1;
$this.slide(index);
}
else if(settings.mode==='fade' && settings.thumbnail===true && $children.length > 1){
$thumb_cont.addClass('open');
}
}
settings.onSlidePrev.call( this );
},
slide : function (index){
if(lightGalleryOn){
if(!$slider.hasClass('on')){
$slider.addClass('on');
}
if(this.doCss() && settings.speed !== ''){
if(!$slider.hasClass('speed')){
$slider.addClass('speed');
}
if(aSpeed === false){
$slider.css('transition-duration',settings.speed+'ms');
aSpeed = true;
}
}
if(this.doCss() && settings.easing !== ''){
if(!$slider.hasClass('timing')){
$slider.addClass('timing');
}
if(aTiming === false){
$slider.css('transition-timing-function',settings.easing);
aTiming = true;
}
}
settings.onSlideBefore.call( this );
}
if(settings.mode === 'slide'){
if(this.doCss() && !$slider.hasClass('slide')){
$slider.addClass('slide');
}
/* if(this.doCss()){
$slider.css({ 'transform' : 'translate3d('+(-index*100)+'%, 0px, 0px)' });
}*/
if(!this.doCss() && !lightGalleryOn){
$slider.css({ left : (-index*100)+'%' });
//$slide.eq(index).css('transition','none');
}
else if(!this.doCss() && lightGalleryOn){
$slider.animate({ left : (-index*100)+'%' },settings.speed,settings.easing);
}
}
else if(settings.mode === 'fade'){
if(this.doCss() && !$slider.hasClass('fadeM')){
$slider.addClass('fadeM');
}else if(!this.doCss() && !$slider.hasClass('animate')){
$slider.addClass('animate');
}
if(!this.doCss() && !lightGalleryOn){
$slide.fadeOut(100);
$slide.eq(index).fadeIn(100);
}else if(!this.doCss() && lightGalleryOn){
$slide.eq(prevIndex).fadeOut(settings.speed,settings.easing);
$slide.eq(index).fadeIn(settings.speed,settings.easing);
}
}
if(index+1 >= $children.length && settings.auto && settings.loop === false){
clearInterval(interval);
}
$slide.eq(prevIndex).removeClass('current');
$slide.eq(index).addClass('current');
if(this.doCss() && settings.mode === 'slide'){
if(usingThumb === false){
$('.prevSlide').removeClass('prevSlide');
$('.nextSlide').removeClass('nextSlide');
$slide.eq(index-1).addClass('prevSlide');
$slide.eq(index+1).addClass('nextSlide');
}else{
$slide.eq(index).prevAll().removeClass('nextSlide').addClass('prevSlide');
$slide.eq(index).nextAll().removeClass('prevSlide').addClass('nextSlide');
}
}
if(settings.thumbnail===true && $children.length > 1){
$thumb.removeClass('active');
$thumb.eq(index).addClass('active');
}
if(settings.controls && settings.hideControlOnEnd && settings.loop === false){
if(index === 0){
$prev.addClass('disabled');
}else if( index === $children.length - 1 ){
$next.addClass('disabled');
}
else{
$prev.add($next).removeClass('disabled');
}
}
prevIndex = index;
lightGalleryOn === false ? settings.onOpen.call(this) : settings.onSlideAfter.call(this);
lightGalleryOn = true;
usingThumb = false;
},
destroy : function(){
settings.onBeforeClose.call( this );
lightGalleryOn = false;
clearInterval(interval);
$('.lightGallery').unbind('mousedown');
$('.lightGallery').unbind('mouseup');
$('body').removeClass('touch');
$('body').unbind('touchstart');
$('body').unbind('touchmove');
$('body').unbind('touchend');
$(window).unbind('resize');
$(window).unbind('keyup');
$gallery.addClass('fadeM');
setTimeout(function(){
$galleryCont.remove();
$('body').removeClass('lightGallery');
},500);
settings.onCloseAfter.call( this );
}
};
lightGallery.init();
};
}(jQuery));