Current Path : /storage/v11800/acejewellery/public_html/wp-content/themes/lindo/js/ |
Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
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Current File : /storage/v11800/acejewellery/public_html/wp-content/themes/lindo/js/jquery.unveil.js |
/**
* jQuery Unveil
* A very lightweight jQuery plugin to lazy load images
* http://luis-almeida.github.com/unveil
*
* Licensed under the MIT license.
* Copyright 2013 Luís Almeida
* https://github.com/luis-almeida
*/
;(function($) {
"use strict";
$.fn.unveil = function(threshold, callback) {
var $w = $(window),
th = threshold || 0,
retina = window.devicePixelRatio > 1,
attrib = retina? "data-src-retina" : "data-src",
attrsrcset = "data-srcset",
attrsizes = "data-sizes",
images = this,
loaded;
this.one("unveil", function() {
var source = this.getAttribute(attrib);
source = source || this.getAttribute("data-src");
if (source) {
this.setAttribute("src", source);
var source_srcset = this.getAttribute(attrsrcset);
source_srcset = source_srcset || this.getAttribute("data-srcset");
if (source_srcset) {
this.setAttribute("srcset", source_srcset);
}
var source_sizes = this.getAttribute(attrsizes);
source_sizes = source_sizes || this.getAttribute("data-sizes");
if (source_sizes) {
this.setAttribute("sizes", source_sizes);
}
if (typeof callback === "function") callback.call(this);
}
});
function unveil() {
var inview = images.filter(function() {
var $e = $(this);
if ($e.is(":hidden")) return;
var wt = $w.scrollTop(),
wb = wt + $w.height(),
et = $e.offset().top,
eb = et + $e.height();
return eb >= wt - th && et <= wb + th;
});
loaded = inview.trigger("unveil");
images = images.not(loaded);
}
$w.on("scroll.unveil resize.unveil lookup.unveil", unveil);
unveil();
return this;
};
})(window.jQuery || window.Zepto);