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l4kr
2026-02-09 10:48:21 +01:00
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modules/lazyloader/lazyloader-intersectionobserver.js Normal file
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define(["exports"],function(_exports){function LazyLoader(options){this.options=options}Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0,LazyLoader.prototype.createObserver=function(){var observerOptions={},options=this.options,loadedCount=0,callback=options.callback,observerId=(observerOptions.rootMargin="50%","obs"+Date.now()),self=this,observer=new IntersectionObserver(function(entries){for(var j=0,length2=entries.length;j<length2;j++){var entry=entries[j],isIntersecting=entry.isIntersecting;(isIntersecting=null==isIntersecting?0<entry.intersectionRatio:isIntersecting)&&(isIntersecting=entry.target,observer.unobserve(isIntersecting),isIntersecting[observerId]||(isIntersecting[observerId]=1,callback(isIntersecting),++loadedCount>=self.elementCount&&self.destroyObserver()))}},observerOptions);this.observer=observer},LazyLoader.prototype.addElements=function(elements){var observer=this.observer;observer||(this.createObserver(),observer=this.observer),this.elementCount=(this.elementCount||0)+elements.length;for(var i=0,length=elements.length;i<length;i++)observer.observe(elements[i])},LazyLoader.prototype.destroyObserver=function(elements){var observer=this.observer;observer&&(observer.disconnect(),this.observer=null)},LazyLoader.prototype.destroy=function(elements){this.destroyObserver(),this.options=null},LazyLoader.lazyChildren=function(elem,callback){elem=elem.getElementsByClassName("lazy");elem.length&&new LazyLoader({callback:callback}).addElements(elem)};_exports.default=LazyLoader});