var _extends=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(t[o]=n[o])}return t},_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t};!function(t,e){"object"===("undefined"==typeof exports?"undefined":_typeof(exports))&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.LazyLoad=e()}(this,function(){"use strict";function t(t,e,n){return!(u(t,e,n)||_(t,e,n)||f(t,e,n)||h(t,e,n))}function e(t,e,n){var o=e._settings;!n&&r(t)||(C(o.callback_enter,t),R.indexOf(t.tagName)>-1&&(x(t,e),y(t,o.class_loading)),H(t,e),s(t),C(o.callback_set,t))}var n=function(){return{elements_selector:"img",container:window,threshold:300,throttle:150,data_src:"src",data_srcset:"srcset",data_sizes:"sizes",data_bg:"bg",class_loading:"loading",class_loaded:"loaded",class_error:"error",class_initial:"initial",skip_invisible:!0,callback_load:null,callback_error:null,callback_set:null,callback_enter:null,callback_finish:null,to_webp:!1}},o=function(t,e){return t.getAttribute("data-"+e)},i=function(t,e,n){var o="data-"+e;null!==n?t.setAttribute(o,n):t.removeAttribute(o)},s=function(t){return i(t,"was-processed","true")},r=function(t){return"true"===o(t,"was-processed")},l=function(t){return t.filter(function(t){return!r(t)})},a=function(t,e){return t.filter(function(t){return t!==e})},c=function(t){return t.getBoundingClientRect().top+window.pageYOffset-t.ownerDocument.documentElement.clientTop},u=function(t,e,n){return(e===window?window.innerHeight+window.pageYOffset:c(e)+e.offsetHeight)<=c(t)-n},d=function(t){return t.getBoundingClientRect().left+window.pageXOffset-t.ownerDocument.documentElement.clientLeft},f=function(t,e,n){var o=window.innerWidth;return(e===window?o+window.pageXOffset:d(e)+o)<=d(t)-n},_=function(t,e,n){return(e===window?window.pageYOffset:c(e))>=c(t)+n+t.offsetHeight},h=function(t,e,n){return(e===window?window.pageXOffset:d(e))>=d(t)+n+t.offsetWidth},p=function(t,e){var n,o=new t(e);try{n=new CustomEvent("LazyLoad::Initialized",{detail:{instance:o}})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent("LazyLoad::Initialized",!1,!1,{instance:o})}window.dispatchEvent(n)},g=function(t,e){return e?t.replace(/\.(jpe?g|png)/gi,".webp"):t},m="undefined"!=typeof window,w=m&&!("onscroll"in window)||/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent),v=m&&"classList"in document.createElement("p"),b=m&&function(){var t=document.createElement("canvas");return!(!t.getContext||!t.getContext("2d"))&&0===t.toDataURL("image/webp").indexOf("data:image/webp")}(),y=function(t,e){v?t.classList.add(e):t.className+=(t.className?" ":"")+e},E=function(t,e){v?t.classList.remove(e):t.className=t.className.replace(new RegExp("(^|\\s+)"+e+"(\\s+|$)")," ").replace(/^\s+/,"").replace(/\s+$/,"")},L=function(t,e,n,i){for(var s,r=0;s=t.children[r];r+=1)if("SOURCE"===s.tagName){var l=o(s,n);T(s,e,l,i)}},T=function(t,e,n,o){n&&t.setAttribute(e,g(n,o))},S=function(t,e){var n=b&&e.to_webp,i=o(t,e.data_src),s=o(t,e.data_bg);if(i){var r=g(i,n);t.style.backgroundImage='url("'+r+'")'}if(s){var l=g(s,n);t.style.backgroundImage=l}},O={IMG:function(t,e){var n=b&&e.to_webp,i=e.data_srcset,s=t.parentNode;s&&"PICTURE"===s.tagName&&L(s,"srcset",i,n);var r=o(t,e.data_sizes);T(t,"sizes",r);var l=o(t,i);T(t,"srcset",l,n);var a=o(t,e.data_src);T(t,"src",a,n)},IFRAME:function(t,e){var n=o(t,e.data_src);T(t,"src",n)},VIDEO:function(t,e){var n=e.data_src,i=o(t,n);L(t,"src",n),T(t,"src",i),t.load()}},H=function(t,e){var n=e._settings,o=t.tagName,i=O[o];if(i)return i(t,n),e._updateLoadingCount(1),void(e._elements=a(e._elements,t));S(t,n)},C=function(t,e){t&&t(e)},k=function(t,e,n){t.addEventListener(e,n)},z=function(t,e,n){t.removeEventListener(e,n)},N=function(t,e,n){k(t,"load",e),k(t,"loadeddata",e),k(t,"error",n)},A=function(t,e,n){z(t,"load",e),z(t,"loadeddata",e),z(t,"error",n)},I=function(t,e,n){var o=n._settings,i=e?o.class_loaded:o.class_error,s=e?o.callback_load:o.callback_error,r=t.target;E(r,o.class_loading),y(r,i),C(s,r),n._updateLoadingCount(-1)},x=function(t,e){var n=function n(i){I(i,!0,e),A(t,n,o)},o=function o(i){I(i,!1,e),A(t,n,o)};N(t,n,o)},R=["IMG","IFRAME","VIDEO"],D=function(t,e){for(;e.length;)t.splice(e.pop(),1)},F=function(t){this._settings=_extends({},n(),t),this._loadingCount=0,this._queryOriginNode=this._settings.container===window?document:this._settings.container,this._previousLoopTime=0,this._loopTimeout=null,this._boundHandleScroll=this.handleScroll.bind(this),this._isFirstLoop=!0,window.addEventListener("resize",this._boundHandleScroll),this.update()};return F.prototype={_loopThroughElements:function(e){var n=this._settings,o=this._elements,i=o?o.length:0,s=void 0,r=[],l=this._isFirstLoop;if(l&&(this._isFirstLoop=!1),0!==i){for(s=0;s<i;s++){var a=o[s];n.skip_invisible&&null===a.offsetParent||(e||t(a,n.container,n.threshold))&&(l&&y(a,n.class_initial),this.load(a),r.push(s))}D(o,r)}else this._stopScrollHandler()},_startScrollHandler:function(){this._isHandlingScroll||(this._isHandlingScroll=!0,this._settings.container.addEventListener("scroll",this._boundHandleScroll))},_stopScrollHandler:function(){this._isHandlingScroll&&(this._isHandlingScroll=!1,this._settings.container.removeEventListener("scroll",this._boundHandleScroll))},_updateLoadingCount:function(t){this._loadingCount+=t,0===this._elements.length&&0===this._loadingCount&&C(this._settings.callback_finish)},handleScroll:function(){var t=this._settings.throttle;if(0!==t){var e=Date.now(),n=t-(e-this._previousLoopTime);n<=0||n>t?(this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._previousLoopTime=e,this._loopThroughElements()):this._loopTimeout||(this._loopTimeout=setTimeout(function(){this._previousLoopTime=Date.now(),this._loopTimeout=null,this._loopThroughElements()}.bind(this),n))}else this._loopThroughElements()},loadAll:function(){this._loopThroughElements(!0)},update:function(t){var e=this._settings,n=t||this._queryOriginNode.querySelectorAll(e.elements_selector);this._elements=l(Array.prototype.slice.call(n)),w?this.loadAll():(this._loopThroughElements(),this._startScrollHandler())},destroy:function(){window.removeEventListener("resize",this._boundHandleScroll),this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._stopScrollHandler(),this._elements=null,this._queryOriginNode=null,this._settings=null},load:function(t,n){e(t,this,n)}},m&&function(t,e){if(e)if(e.length)for(var n,o=0;n=e[o];o+=1)p(t,n);else p(t,e)}(F,window.lazyLoadOptions),F});