/**
* Featherlight Gallery – an extension for the ultra slim jQuery lightbox
* Version 1.7.13 - http://noelboss.github.io/featherlight/
*
* Copyright 2018, Noël Raoul Bossart (http://www.noelboss.com)
* MIT Licensed.
**/
(function($) {
"use strict";
var warn = function(m) {
if(window.console && window.console.warn) {
window.console.warn('FeatherlightGallery: ' + m);
}
};
if('undefined' === typeof $) {
return warn('Too much lightness, Featherlight needs jQuery.');
} else if(!$.featherlight) {
return warn('Load the featherlight plugin before the gallery plugin');
}
var isTouchAware = ('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch,
jQueryConstructor = $.event && $.event.special.swipeleft && $,
hammerConstructor = window.Hammer && function($el){
var mc = new window.Hammer.Manager($el[0]);
mc.add(new window.Hammer.Swipe());
return mc;
},
swipeAwareConstructor = isTouchAware && (jQueryConstructor || hammerConstructor);
if(isTouchAware && !swipeAwareConstructor) {
warn('No compatible swipe library detected; one must be included before featherlightGallery for swipe motions to navigate the galleries.');
}
var callbackChain = {
afterClose: function(_super, event) {
var self = this;
self.$instance.off('next.'+self.namespace+' previous.'+self.namespace);
if (self._swiper) {
self._swiper
.off('swipeleft', self._swipeleft) /* See http://stackoverflow.com/questions/17367198/hammer-js-cant-remove-event-listener */
.off('swiperight', self._swiperight);
self._swiper = null;
}
return _super(event);
},
beforeOpen: function(_super, event){
var self = this;
self.$instance.on('next.'+self.namespace+' previous.'+self.namespace, function(event){
var offset = event.type === 'next' ? +1 : -1;
self.navigateTo(self.currentNavigation() + offset);
});
if (swipeAwareConstructor) {
self._swiper = swipeAwareConstructor(self.$instance)
.on('swipeleft', self._swipeleft = function() { self.$instance.trigger('next'); })
.on('swiperight', self._swiperight = function() { self.$instance.trigger('previous'); });
self.$instance
.addClass(this.namespace+'-swipe-aware', swipeAwareConstructor);
}
self.$instance.find('.'+self.namespace+'-content')
.append(self.createNavigation('previous'))
.append(self.createNavigation('next'));
return _super(event);
},
beforeContent: function(_super, event) {
var index = this.currentNavigation();
var len = this.slides().length;
this.$instance
.toggleClass(this.namespace+'-first-slide', index === 0)
.toggleClass(this.namespace+'-last-slide', index === len - 1);
return _super(event);
},
onKeyUp: function(_super, event){
var dir = {
37: 'previous', /* Left arrow */
39: 'next' /* Rigth arrow */
}[event.keyCode];
if(dir) {
this.$instance.trigger(dir);
return false;
} else {
return _super(event);
}
}
};
function FeatherlightGallery($source, config) {
if(this instanceof FeatherlightGallery) { /* called with new */
$.featherlight.apply(this, arguments);
this.chainCallbacks(callbackChain);
} else {
var flg = new FeatherlightGallery($.extend({$source: $source, $currentTarget: $source.first()}, config));
flg.open();
return flg;
}
}
$.featherlight.extend(FeatherlightGallery, {
autoBind: '[data-featherlight-gallery]'
});
$.extend(FeatherlightGallery.prototype, {
/** Additional settings for Gallery **/
previousIcon: '◀', /* Code that is used as previous icon */
nextIcon: '▶', /* Code that is used as next icon */
galleryFadeIn: 100, /* fadeIn speed when image is loaded */
galleryFadeOut: 300, /* fadeOut speed before image is loaded */
slides: function() {
if (this.filter) {
return this.$source.find(this.filter);
}
return this.$source;
},
images: function() {
warn('images is deprecated, please use slides instead');
return this.slides();
},
currentNavigation: function() {
return this.slides().index(this.$currentTarget);
},
navigateTo: function(index) {
var self = this,
source = self.slides(),
len = source.length,
$inner = self.$instance.find('.' + self.namespace + '-inner');
index = ((index % len) + len) % len; /* pin index to [0, len[ */
self.$currentTarget = source.eq(index);
self.beforeContent();
return $.when(
self.getContent(),
$inner.fadeTo(self.galleryFadeOut,0.2)
).always(function($newContent) {
self.setContent($newContent);
self.afterContent();
$newContent.fadeTo(self.galleryFadeIn,1);
});
},
createNavigation: function(target) {
var self = this;
return $('<span title="'+target+'" class="'+this.namespace+'-'+target+'"><span>'+this[target+'Icon']+'</span></span>').click(function(evt){
$(this).trigger(target+'.'+self.namespace);
evt.preventDefault();
});
}
});
$.featherlightGallery = FeatherlightGallery;
/* extend jQuery with selector featherlight method $(elm).featherlight(config, elm); */
$.fn.featherlightGallery = function(config) {
FeatherlightGallery.attach(this, config);
return this;
};
/* bind featherlight on ready if config autoBind is set */
$(document).ready(function(){ FeatherlightGallery._onReady(); });
}(jQuery));