ls.bgset.min.js

/*! lazysizes - v2.0.0 */
!function(){"use strict";if(window.addEventListener){var a=/\s+/g,b=/\s*\|\s+|\s+\|\s*/g,c=/^(.+?)(?:\s+\[\s*(.+?)\s*\])?$/,d={contain:1,cover:1},e=function(a){var b=lazySizes.gW(a,a.parentNode);return(!a._lazysizesWidth||b>a._lazysizesWidth)&&(a._lazysizesWidth=b),a._lazysizesWidth},f=function(a){var b;return b=(getComputedStyle(a)||{getPropertyValue:function(){}}).getPropertyValue("background-size"),!d[b]&&d[a.style.backgroundSize]&&(b=a.style.backgroundSize),b},g=function(d,e,f){var g=document.createElement("picture"),h=e.getAttribute(lazySizesConfig.sizesAttr),i=e.getAttribute("data-ratio"),j=e.getAttribute("data-optimumx");e._lazybgset&&e._lazybgset.parentNode==e&&e.removeChild(e._lazybgset),Object.defineProperty(f,"_lazybgset",{value:e,writable:!0}),Object.defineProperty(e,"_lazybgset",{value:g,writable:!0}),d=d.replace(a," ").split(b),g.style.display="none",f.className=lazySizesConfig.lazyClass,1!=d.length||h||(h="auto"),d.forEach(function(a){var b=document.createElement("source");h&&"auto"!=h&&b.setAttribute("sizes",h),a.match(c)&&(b.setAttribute(lazySizesConfig.srcsetAttr,RegExp.$1),RegExp.$2&&b.setAttribute("media",lazySizesConfig.customMedia[RegExp.$2]||RegExp.$2)),g.appendChild(b)}),h&&(f.setAttribute(lazySizesConfig.sizesAttr,h),e.removeAttribute(lazySizesConfig.sizesAttr),e.removeAttribute("sizes")),j&&f.setAttribute("data-optimumx",j),i&&f.setAttribute("data-ratio",i),g.appendChild(f),e.appendChild(g)},h=function(a){if(a.target._lazybgset){var b=a.target,c=b._lazybgset,d=b.currentSrc||b.src;d&&(c.style.backgroundImage="url("+d+")"),b._lazybgsetLoading&&(lazySizes.fire(c,"_lazyloaded",{},!1,!0),delete b._lazybgsetLoading)}};addEventListener("lazybeforeunveil",function(a){var b,c,d;!a.defaultPrevented&&(b=a.target.getAttribute("data-bgset"))&&(d=a.target,c=document.createElement("img"),c.alt="",c._lazybgsetLoading=!0,a.detail.firesLoad=!0,g(b,d,c),setTimeout(function(){lazySizes.loader.unveil(c),lazySizes.rAF(function(){lazySizes.fire(c,"_lazyloaded",{},!0,!0),c.complete&&h({target:c})})}))}),document.addEventListener("load",h,!0),window.addEventListener("lazybeforesizes",function(a){if(a.target._lazybgset&&a.detail.dataAttr){var b=a.target._lazybgset,c=f(b);d[c]&&(a.target._lazysizesParentFit=c,lazySizes.rAF(function(){a.target.setAttribute("data-parent-fit",c),a.target._lazysizesParentFit&&delete a.target._lazysizesParentFit}))}},!0),document.documentElement.addEventListener("lazybeforesizes",function(a){!a.defaultPrevented&&a.target._lazybgset&&(a.detail.width=e(a.target._lazybgset))})}}();