2 lines
8.7 KiB
JavaScript
2 lines
8.7 KiB
JavaScript
!function(n,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(n="undefined"!=typeof globalThis?globalThis:n||self).LazyLoad=t()}(this,(function(){"use strict";function n(){return n=Object.assign||function(n){for(var t=1;t<arguments.length;t++){var e=arguments[t];for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(n[i]=e[i])}return n},n.apply(this,arguments)}var t="undefined"!=typeof window,e=t&&!("onscroll"in window)||"undefined"!=typeof navigator&&/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent),i=t&&"IntersectionObserver"in window,o=t&&"classList"in document.createElement("p"),a=t&&window.devicePixelRatio>1,r={elements_selector:".lazy",container:e||t?document:null,threshold:300,thresholds:null,data_src:"src",data_srcset:"srcset",data_sizes:"sizes",data_bg:"bg",data_bg_hidpi:"bg-hidpi",data_bg_multi:"bg-multi",data_bg_multi_hidpi:"bg-multi-hidpi",data_bg_set:"bg-set",data_poster:"poster",class_applied:"applied",class_loading:"loading",class_loaded:"loaded",class_error:"error",class_entered:"entered",class_exited:"exited",unobserve_completed:!0,unobserve_entered:!1,cancel_on_exit:!0,callback_enter:null,callback_exit:null,callback_applied:null,callback_loading:null,callback_loaded:null,callback_error:null,callback_finish:null,callback_cancel:null,use_native:!1,restore_on_error:!1},c=function(t){return n({},r,t)},l=function(n,t){var e,i="LazyLoad::Initialized",o=new n(t);try{e=new CustomEvent(i,{detail:{instance:o}})}catch(n){(e=document.createEvent("CustomEvent")).initCustomEvent(i,!1,!1,{instance:o})}window.dispatchEvent(e)},u="src",s="srcset",d="sizes",f="poster",_="llOriginalAttrs",g="data",v="loading",b="loaded",p="applied",m="error",h="native",E="data-",I="ll-status",y=function(n,t){return n.getAttribute(E+t)},k=function(n){return y(n,I)},w=function(n,t){return function(n,t,e){var i="data-ll-status";null!==e?n.setAttribute(i,e):n.removeAttribute(i)}(n,0,t)},A=function(n){return w(n,null)},L=function(n){return null===k(n)},O=function(n){return k(n)===h},x=[v,b,p,m],C=function(n,t,e,i){n&&"function"==typeof n&&(void 0===i?void 0===e?n(t):n(t,e):n(t,e,i))},N=function(n,t){o?n.classList.add(t):n.className+=(n.className?" ":"")+t},M=function(n,t){o?n.classList.remove(t):n.className=n.className.replace(new RegExp("(^|\\s+)"+t+"(\\s+|$)")," ").replace(/^\s+/,"").replace(/\s+$/,"")},z=function(n){return n.llTempImage},T=function(n,t){if(t){var e=t._observer;e&&e.unobserve(n)}},R=function(n,t){n&&(n.loadingCount+=t)},G=function(n,t){n&&(n.toLoadCount=t)},j=function(n){for(var t,e=[],i=0;t=n.children[i];i+=1)"SOURCE"===t.tagName&&e.push(t);return e},D=function(n,t){var e=n.parentNode;e&&"PICTURE"===e.tagName&&j(e).forEach(t)},H=function(n,t){j(n).forEach(t)},V=[u],F=[u,f],B=[u,s,d],J=[g],P=function(n){return!!n[_]},S=function(n){return n[_]},U=function(n){return delete n[_]},$=function(n,t){if(!P(n)){var e={};t.forEach((function(t){e[t]=n.getAttribute(t)})),n[_]=e}},q=function(n,t){if(P(n)){var e=S(n);t.forEach((function(t){!function(n,t,e){e?n.setAttribute(t,e):n.removeAttribute(t)}(n,t,e[t])}))}},K=function(n,t,e){N(n,t.class_applied),w(n,p),e&&(t.unobserve_completed&&T(n,t),C(t.callback_applied,n,e))},Q=function(n,t,e){N(n,t.class_loading),w(n,v),e&&(R(e,1),C(t.callback_loading,n,e))},W=function(n,t,e){e&&n.setAttribute(t,e)},X=function(n,t){W(n,d,y(n,t.data_sizes)),W(n,s,y(n,t.data_srcset)),W(n,u,y(n,t.data_src))},Y={IMG:function(n,t){D(n,(function(n){$(n,B),X(n,t)})),$(n,B),X(n,t)},IFRAME:function(n,t){$(n,V),W(n,u,y(n,t.data_src))},VIDEO:function(n,t){H(n,(function(n){$(n,V),W(n,u,y(n,t.data_src))})),$(n,F),W(n,f,y(n,t.data_poster)),W(n,u,y(n,t.data_src)),n.load()},OBJECT:function(n,t){$(n,J),W(n,g,y(n,t.data_src))}},Z=["IMG","IFRAME","VIDEO","OBJECT"],nn=function(n,t){!t||function(n){return n.loadingCount>0}(t)||function(n){return n.toLoadCount>0}(t)||C(n.callback_finish,t)},tn=function(n,t,e){n.addEventListener(t,e),n.llEvLisnrs[t]=e},en=function(n,t,e){n.removeEventListener(t,e)},on=function(n){return!!n.llEvLisnrs},an=function(n){if(on(n)){var t=n.llEvLisnrs;for(var e in t){var i=t[e];en(n,e,i)}delete n.llEvLisnrs}},rn=function(n,t,e){!function(n){delete n.llTempImage}(n),R(e,-1),function(n){n&&(n.toLoadCount-=1)}(e),M(n,t.class_loading),t.unobserve_completed&&T(n,e)},cn=function(n,t,e){var i=z(n)||n;on(i)||function(n,t,e){on(n)||(n.llEvLisnrs={});var i="VIDEO"===n.tagName?"loadeddata":"load";tn(n,i,t),tn(n,"error",e)}(i,(function(o){!function(n,t,e,i){var o=O(t);rn(t,e,i),N(t,e.class_loaded),w(t,b),C(e.callback_loaded,t,i),o||nn(e,i)}(0,n,t,e),an(i)}),(function(o){!function(n,t,e,i){var o=O(t);rn(t,e,i),N(t,e.class_error),w(t,m),C(e.callback_error,t,i),e.restore_on_error&&q(t,B),o||nn(e,i)}(0,n,t,e),an(i)}))},ln=function(n,t,e){!function(n){return Z.indexOf(n.tagName)>-1}(n)?function(n,t,e){!function(n){n.llTempImage=document.createElement("IMG")}(n),cn(n,t,e),function(n){P(n)||(n[_]={backgroundImage:n.style.backgroundImage})}(n),function(n,t,e){var i=y(n,t.data_bg),o=y(n,t.data_bg_hidpi),r=a&&o?o:i;r&&(n.style.backgroundImage='url("'.concat(r,'")'),z(n).setAttribute(u,r),Q(n,t,e))}(n,t,e),function(n,t,e){var i=y(n,t.data_bg_multi),o=y(n,t.data_bg_multi_hidpi),r=a&&o?o:i;r&&(n.style.backgroundImage=r,K(n,t,e))}(n,t,e),function(n,t,e){var i=y(n,t.data_bg_set);if(i){var o=i.split("|"),a=o.map((function(n){return"image-set(".concat(n,")")}));n.style.backgroundImage=a.join(),""===n.style.backgroundImage&&(a=o.map((function(n){return"-webkit-image-set(".concat(n,")")})),n.style.backgroundImage=a.join()),K(n,t,e)}}(n,t,e)}(n,t,e):function(n,t,e){cn(n,t,e),function(n,t,e){var i=Y[n.tagName];i&&(i(n,t),Q(n,t,e))}(n,t,e)}(n,t,e)},un=function(n){n.removeAttribute(u),n.removeAttribute(s),n.removeAttribute(d)},sn=function(n){D(n,(function(n){q(n,B)})),q(n,B)},dn={IMG:sn,IFRAME:function(n){q(n,V)},VIDEO:function(n){H(n,(function(n){q(n,V)})),q(n,F),n.load()},OBJECT:function(n){q(n,J)}},fn=function(n,t){(function(n){var t=dn[n.tagName];t?t(n):function(n){if(P(n)){var t=S(n);n.style.backgroundImage=t.backgroundImage}}(n)})(n),function(n,t){L(n)||O(n)||(M(n,t.class_entered),M(n,t.class_exited),M(n,t.class_applied),M(n,t.class_loading),M(n,t.class_loaded),M(n,t.class_error))}(n,t),A(n),U(n)},_n=["IMG","IFRAME","VIDEO"],gn=function(n){return n.use_native&&"loading"in HTMLImageElement.prototype},vn=function(n,t,e){n.forEach((function(n){return function(n){return n.isIntersecting||n.intersectionRatio>0}(n)?function(n,t,e,i){var o=function(n){return x.indexOf(k(n))>=0}(n);w(n,"entered"),N(n,e.class_entered),M(n,e.class_exited),function(n,t,e){t.unobserve_entered&&T(n,e)}(n,e,i),C(e.callback_enter,n,t,i),o||ln(n,e,i)}(n.target,n,t,e):function(n,t,e,i){L(n)||(N(n,e.class_exited),function(n,t,e,i){e.cancel_on_exit&&function(n){return k(n)===v}(n)&&"IMG"===n.tagName&&(an(n),function(n){D(n,(function(n){un(n)})),un(n)}(n),sn(n),M(n,e.class_loading),R(i,-1),A(n),C(e.callback_cancel,n,t,i))}(n,t,e,i),C(e.callback_exit,n,t,i))}(n.target,n,t,e)}))},bn=function(n){return Array.prototype.slice.call(n)},pn=function(n){return n.container.querySelectorAll(n.elements_selector)},mn=function(n){return function(n){return k(n)===m}(n)},hn=function(n,t){return function(n){return bn(n).filter(L)}(n||pn(t))},En=function(n,e){var o=c(n);this._settings=o,this.loadingCount=0,function(n,t){i&&!gn(n)&&(t._observer=new IntersectionObserver((function(e){vn(e,n,t)}),function(n){return{root:n.container===document?null:n.container,rootMargin:n.thresholds||n.threshold+"px"}}(n)))}(o,this),function(n,e){t&&(e._onlineHandler=function(){!function(n,t){var e;(e=pn(n),bn(e).filter(mn)).forEach((function(t){M(t,n.class_error),A(t)})),t.update()}(n,e)},window.addEventListener("online",e._onlineHandler))}(o,this),this.update(e)};return En.prototype={update:function(n){var t,o,a=this._settings,r=hn(n,a);G(this,r.length),!e&&i?gn(a)?function(n,t,e){n.forEach((function(n){-1!==_n.indexOf(n.tagName)&&function(n,t,e){n.setAttribute("loading","lazy"),cn(n,t,e),function(n,t){var e=Y[n.tagName];e&&e(n,t)}(n,t),w(n,h)}(n,t,e)})),G(e,0)}(r,a,this):(o=r,function(n){n.disconnect()}(t=this._observer),function(n,t){t.forEach((function(t){n.observe(t)}))}(t,o)):this.loadAll(r)},destroy:function(){this._observer&&this._observer.disconnect(),t&&window.removeEventListener("online",this._onlineHandler),pn(this._settings).forEach((function(n){U(n)})),delete this._observer,delete this._settings,delete this._onlineHandler,delete this.loadingCount,delete this.toLoadCount},loadAll:function(n){var t=this,e=this._settings;hn(n,e).forEach((function(n){T(n,t),ln(n,e,t)}))},restoreAll:function(){var n=this._settings;pn(n).forEach((function(t){fn(t,n)}))}},En.load=function(n,t){var e=c(t);ln(n,e)},En.resetStatus=function(n){A(n)},t&&function(n,t){if(t)if(t.length)for(var e,i=0;e=t[i];i+=1)l(n,e);else l(n,t)}(En,window.lazyLoadOptions),En}));
|