').addClass('sl-counter').html('/'),
animating = false,
index = 0,
caption = $('
').addClass('sl-caption '+options.captionClass+' pos-'+options.captionPosition),
image = $('
').addClass('sl-image'),
wrapper = $('
').addClass('sl-wrapper').addClass(options.className),
isValidLink = function( element ){
if(!options.fileExt) return true;
var filEext = /\.([0-9a-z]+)(?=[?#])|(\.)(?:[\w]+)$/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($.Event('show.simplelightbox'));
if(options.disableScroll) globalScrollbarwidth = handleScrollbar('hide');
wrapper.appendTo('body');
image.appendTo(wrapper);
if(options.overlay) overlay.appendTo($('body'));
animating = true;
index = objects.index(elem);
curImg = $( '![]()
' )
.hide()
.attr('src', elem.attr(options.sourceAttr));
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 ).width() * options.widthRatio,
windowHeight = $( window ).height() * options.heightRatio;
tmpImage.src = curImg.attr( 'src' );
$(tmpImage).on('error',function(ev){
//no image was found
objects.eq(index).trigger($.Event('error.simplelightbox'));
animating = false;
opened = true;
spinner.hide();
if(options.alertError){
alert(options.alertErrorMessage);
}
if(dir == 1 || dir == -1){
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( imageWidth > windowWidth || imageHeight > windowHeight ){
var ratio = imageWidth / imageHeight > windowWidth / windowHeight ? imageWidth / windowWidth : imageHeight / windowHeight;
imageWidth /= ratio;
imageHeight /= ratio;
}
$('.sl-image').css({
'top': ( $( window ).height() - imageHeight ) / 2 + 'px',
'left': ( $( window ).width() - imageWidth - globalScrollbarwidth)/ 2 + 'px'
});
spinner.hide();
curImg
.css({
'width': imageWidth + 'px',
'height': imageHeight + 'px'
})
.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);
});
} else {
animating = false;
setCaption(captionText);
}
if(options.additionalHtml && $('.sl-additional-html').length === 0){
$('
').html(options.additionalHtml).addClass('sl-additional-html').appendTo($('.sl-image'));
}
};
},
setCaption = function(captiontext){
if(captiontext !== '' && typeof captiontext !== "undefined" && options.captions){
caption.html(captiontext).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);
},
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', function(e){
e.preventDefault();
swipeDiff = 0;
loadImage( $(this).hasClass('sl-next') ? 1 : -1 );
});
// touchcontrols
var swipeStart = 0,
swipeEnd = 0,
swipeYStart = 0,
swipeYEnd = 0,
mousedown = false,
imageLeft = 0;
image
.on( 'touchstart.'+prefix+' mousedown.'+prefix, function(e)
{
if(mousedown) return true;
if( canTransisions ) imageLeft = parseInt( image.css( 'left' ) );
mousedown = true;
swipeDiff = 0;
swipeYDiff = 0;
swipeStart = e.originalEvent.pageX || e.originalEvent.touches[ 0 ].pageX;
swipeYStart = e.originalEvent.pageY || e.originalEvent.touches[ 0 ].pageY;
return false;
})
.on( 'touchmove.'+prefix+' mousemove.'+prefix+' pointermove MSPointerMove', function(e)
{
if(!mousedown) return true;
e.preventDefault();
swipeEnd = e.originalEvent.pageX || e.originalEvent.touches[ 0 ].pageX;
swipeYEnd = e.originalEvent.pageY || e.originalEvent.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)
{
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;
$( '![]()
' ).attr( 'src', objects.eq(next).attr( options.sourceAttr ) ).on('load', function(){
if(loaded.indexOf($(this).attr('src')) == -1){
loaded.push($(this).attr('src'));
}
objects.eq(index).trigger($.Event('nextImageLoaded.simplelightbox'));
});
$( '![]()
' ).attr( 'src', objects.eq(prev).attr( options.sourceAttr ) ).on('load', function(){
if(loaded.indexOf($(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');
$('.sl-wrapper, .sl-overlay').remove();
removeEvents();
if(!triggered) elem.trigger($.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;
openImage($(this));
}
});
// 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, function( e ){
swipeDiff = 0;
// keyboard control only if lightbox is open
if(opened){
e.preventDefault();
var key = e.keyCode;
if( key == 27 ) {
close();
}
if( key == 37 || e.keyCode == 39 ) {
loadImage( e.keyCode == 39 ? 1 : -1 );
}
}
});
}
// Public methods
this.open = function(elem){
elem = elem || $(this[0]);
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 );