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nivo-lightbox.js
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nivo-lightbox.js
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/*
* Nivo Lightbox v1.3.1
* http://dev7studios.com/nivo-lightbox
*
* Copyright 2013, Dev7studios
* Free to use and abuse under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*/
;(function($, window, document, undefined){
var pluginName = 'nivoLightbox',
defaults = {
effect: 'fade',
theme: 'default',
keyboardNav: true,
clickImgToClose: false,
clickOverlayToClose: true,
onInit: function(){},
beforeShowLightbox: function(){},
afterShowLightbox: function(lightbox){},
beforeHideLightbox: function(){},
afterHideLightbox: function(){},
beforePrev: function(element){},
onPrev: function(element){},
beforeNext: function(element){},
onNext: function(element){},
errorMessage: 'The requested content cannot be loaded. Please try again later.'
};
function NivoLightbox(element, options){
this.el = element;
this.$el = $(this.el);
this.options = $.extend({}, defaults, options);
this._defaults = defaults;
this._name = pluginName;
this.init();
}
NivoLightbox.prototype = {
init: function(){
var $this = this;
// Need this so we don't use CSS transitions in mobile
if(!$('html').hasClass('nivo-lightbox-notouch')) $('html').addClass('nivo-lightbox-notouch');
if('ontouchstart' in document) $('html').removeClass('nivo-lightbox-notouch');
// Setup the click
this.$el.on('click', function(e){
$this.showLightbox(e);
});
// keyboardNav
if(this.options.keyboardNav){
$('body').off('keyup').on('keyup', function(e){
var code = (e.keyCode ? e.keyCode : e.which);
// Escape
if(code == 27) $this.destructLightbox();
// Left
if(code == 37) $('.nivo-lightbox-prev').trigger('click');
// Right
if(code == 39) $('.nivo-lightbox-next').trigger('click');
});
}
this.options.onInit.call(this);
},
showLightbox: function(e){
var $this = this,
currentLink = this.$el;
// Check content
var check = this.checkContent(currentLink);
if(!check) return;
e.preventDefault();
this.options.beforeShowLightbox.call(this);
var lightbox = this.constructLightbox();
if(!lightbox) return;
var content = lightbox.find('.nivo-lightbox-content');
if(!content) return;
$('body').addClass('nivo-lightbox-body-effect-'+ this.options.effect);
this.processContent( content, currentLink );
// Nav
if(this.$el.attr('data-lightbox-gallery')){
var galleryItems = $('[data-lightbox-gallery="'+ this.$el.attr('data-lightbox-gallery') +'"]');
$('.nivo-lightbox-nav').show();
// Prev
$('.nivo-lightbox-prev').off('click').on('click', function(e){
e.preventDefault();
var index = galleryItems.index(currentLink);
currentLink = galleryItems.eq(index - 1);
if(!$(currentLink).length) currentLink = galleryItems.last();
$.when($this.options.beforePrev.call(this, [ currentLink ])).done(function(){
$this.processContent(content, currentLink);
$this.options.onPrev.call(this, [ currentLink ]);
});
});
// Next
$('.nivo-lightbox-next').off('click').on('click', function(e){
e.preventDefault();
var index = galleryItems.index(currentLink);
currentLink = galleryItems.eq(index + 1);
if(!$(currentLink).length) currentLink = galleryItems.first();
$.when($this.options.beforeNext.call(this, [ currentLink ])).done(function(){
$this.processContent(content, currentLink);
$this.options.onNext.call(this, [ currentLink ]);
});
});
}
setTimeout(function(){
lightbox.addClass('nivo-lightbox-open');
$this.options.afterShowLightbox.call(this, [ lightbox ]);
}, 1); // For CSS transitions
},
checkContent: function( link ) {
var $this = this,
href = link.attr('href'),
video = href.match(/(youtube|youtube-nocookie|youtu|vimeo)\.(com|be)\/(watch\?v=([\w-]+)|([\w-]+))/);
if(href.match(/\.(jpeg|jpg|gif|png)$/i) !== null){
return true;
}
// Video (Youtube/Vimeo)
else if(video){
return true;
}
// AJAX
else if(link.attr('data-lightbox-type') == 'ajax'){
return true;
}
// Inline HTML
else if(href.substring(0, 1) == '#' && link.attr('data-lightbox-type') == 'inline'){
return true;
}
// iFrame (default)
else if(link.attr('data-lightbox-type') == 'iframe'){
return true;
}
return false;
},
processContent: function(content, link){
var $this = this,
href = link.attr('href'),
video = href.match(/(youtube|youtube-nocookie|youtu|vimeo)\.(com|be)\/(watch\?v=([\w-]+)|([\w-]+))/);
content.html('').addClass('nivo-lightbox-loading');
// Is HiDPI?
if(this.isHidpi() && link.attr('data-lightbox-hidpi')){
href = link.attr('data-lightbox-hidpi');
}
// Image
if(href.match(/\.(jpeg|jpg|gif|png)$/i) !== null){
var img = $('<img>', { src: href, 'class': 'nivo-lightbox-image-display' });
img.one('load', function() {
var wrap = $('<div class="nivo-lightbox-image" />');
wrap.append(img);
content.html(wrap).removeClass('nivo-lightbox-loading');
// Vertically center images
wrap.css({
'line-height': $('.nivo-lightbox-content').height() +'px',
'height': $('.nivo-lightbox-content').height() +'px' // For Firefox
});
$(window).resize(function() {
wrap.css({
'line-height': $('.nivo-lightbox-content').height() +'px',
'height': $('.nivo-lightbox-content').height() +'px' // For Firefox
});
});
}).each(function() {
if(this.complete) $(this).load();
});
img.error(function() {
var wrap = $('<div class="nivo-lightbox-error"><p>'+ $this.options.errorMessage +'</p></div>');
content.html(wrap).removeClass('nivo-lightbox-loading');
});
}
// Video (Youtube/Vimeo)
else if(video){
var src = '',
classTerm = 'nivo-lightbox-video';
if(video[1] == 'youtube'){
src = '//www.youtube.com/embed/'+ video[4];
classTerm = 'nivo-lightbox-youtube';
}
if(video[1] == 'youtube-nocookie'){
src = href; //https://www.youtube-nocookie.com/embed/...
classTerm = 'nivo-lightbox-youtube';
}
if(video[1] == 'youtu'){
src = '//www.youtube.com/embed/'+ video[3];
classTerm = 'nivo-lightbox-youtube';
}
if(video[1] == 'vimeo'){
src = '//player.vimeo.com/video/'+ video[3];
classTerm = 'nivo-lightbox-vimeo';
}
if(src){
var iframeVideo = $('<iframe>', {
src: src,
'class': classTerm,
frameborder: 0,
vspace: 0,
hspace: 0,
scrolling: 'auto'
});
content.html(iframeVideo);
iframeVideo.load(function(){ content.removeClass('nivo-lightbox-loading'); });
}
}
// AJAX
else if(link.attr('data-lightbox-type') == 'ajax'){
$.ajax({
url: href,
cache: false,
success: function(data) {
var wrap = $('<div class="nivo-lightbox-ajax" />');
wrap.append(data);
content.html(wrap).removeClass('nivo-lightbox-loading');
// Vertically center html
if(wrap.outerHeight() < content.height()){
wrap.css({
'position': 'relative',
'top': '50%',
'margin-top': -(wrap.outerHeight()/2) +'px'
});
}
$(window).resize(function() {
if(wrap.outerHeight() < content.height()){
wrap.css({
'position': 'relative',
'top': '50%',
'margin-top': -(wrap.outerHeight()/2) +'px'
});
}
});
},
error: function(){
var wrap = $('<div class="nivo-lightbox-error"><p>'+ $this.options.errorMessage +'</p></div>');
content.html(wrap).removeClass('nivo-lightbox-loading');
}
});
}
// Inline HTML
else if(href.substring(0, 1) == '#' && link.attr('data-lightbox-type') == 'inline'){
if($(href).length){
var wrap = $('<div class="nivo-lightbox-inline" />');
wrap.append($(href).clone().show());
content.html(wrap).removeClass('nivo-lightbox-loading');
// Vertically center html
if(wrap.outerHeight() < content.height()){
wrap.css({
'position': 'relative',
'top': '50%',
'margin-top': -(wrap.outerHeight()/2) +'px'
});
}
$(window).resize(function() {
if(wrap.outerHeight() < content.height()){
wrap.css({
'position': 'relative',
'top': '50%',
'margin-top': -(wrap.outerHeight()/2) +'px'
});
}
});
} else {
var wrapError = $('<div class="nivo-lightbox-error"><p>'+ $this.options.errorMessage +'</p></div>');
content.html(wrapError).removeClass('nivo-lightbox-loading');
}
}
// iFrame (default)
else if(link.attr('data-lightbox-type') == 'iframe'){
var iframe = $('<iframe>', {
src: href,
'class': 'nivo-lightbox-item',
frameborder: 0,
vspace: 0,
hspace: 0,
scrolling: 'auto'
});
content.html(iframe);
iframe.load(function(){ content.removeClass('nivo-lightbox-loading'); });
} else {
return false;
}
// Set the title
if(link.attr('title')){
var titleWrap = $('<span>', { 'class': 'nivo-lightbox-title' });
titleWrap.text(link.attr('title'));
$('.nivo-lightbox-title-wrap').html(titleWrap);
} else {
$('.nivo-lightbox-title-wrap').html('');
}
},
constructLightbox: function(){
if($('.nivo-lightbox-overlay').length) return $('.nivo-lightbox-overlay');
var overlay = $('<div>', { 'class': 'nivo-lightbox-overlay nivo-lightbox-theme-'+ this.options.theme +' nivo-lightbox-effect-'+ this.options.effect });
var wrap = $('<div>', { 'class': 'nivo-lightbox-wrap' });
var content = $('<div>', { 'class': 'nivo-lightbox-content' });
var nav = $('<a href="#" class="nivo-lightbox-nav nivo-lightbox-prev">Previous</a><a href="#" class="nivo-lightbox-nav nivo-lightbox-next">Next</a>');
var close = $('<a href="#" class="nivo-lightbox-close" title="Close">Close</a>');
var title = $('<div>', { 'class': 'nivo-lightbox-title-wrap' });
var isMSIE = /*@cc_on!@*/0;
if(isMSIE) overlay.addClass('nivo-lightbox-ie');
wrap.append(content);
wrap.append(title);
overlay.append(wrap);
overlay.append(nav);
overlay.append(close);
$('body').append(overlay);
var $this = this;
if($this.options.clickOverlayToClose){
overlay.on('click', function(e){
if(e.target === this || $(e.target).hasClass('nivo-lightbox-content') || $(e.target).hasClass('nivo-lightbox-image')){
$this.destructLightbox();
}
});
}
if($this.options.clickImgToClose){
overlay.on('click', function(e){
if(e.target === this || $(e.target).hasClass('nivo-lightbox-image-display')){
$this.destructLightbox();
}
});
}
close.on('click', function(e){
e.preventDefault();
$this.destructLightbox();
});
return overlay;
},
destructLightbox: function(){
var $this = this;
this.options.beforeHideLightbox.call(this);
$('.nivo-lightbox-overlay').removeClass('nivo-lightbox-open');
$('.nivo-lightbox-nav').hide();
$('body').removeClass('nivo-lightbox-body-effect-'+ $this.options.effect);
// For IE
var isMSIE = /*@cc_on!@*/0;
if(isMSIE){
$('.nivo-lightbox-overlay iframe').attr("src", " ");
$('.nivo-lightbox-overlay iframe').remove();
}
// Remove click handlers
$('.nivo-lightbox-prev').off('click');
$('.nivo-lightbox-next').off('click');
// Empty content (for videos)
$('.nivo-lightbox-content').empty();
this.options.afterHideLightbox.call(this);
},
isHidpi: function(){
var mediaQuery = "(-webkit-min-device-pixel-ratio: 1.5),\
(min--moz-device-pixel-ratio: 1.5),\
(-o-min-device-pixel-ratio: 3/2),\
(min-resolution: 1.5dppx)";
if(window.devicePixelRatio > 1) return true;
if(window.matchMedia && window.matchMedia(mediaQuery).matches) return true;
return false;
}
};
$.fn[pluginName] = function(options){
return this.each(function(){
if(!$.data(this, pluginName)){
$.data(this, pluginName, new NivoLightbox(this, options));
}
});
};
})(jQuery, window, document);