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this.listeners.map(t=>t.performance())}addLazyBox(t){this.listeners.push(t),_&&(this.addListenerTarget(window),this.observer&&this.observer.observe(t.el),t.$el&&t.$el.parentNode&&this.addListenerTarget(t.$el.parentNode))}add(t,i,s){if(this.listeners.some(a=>a.el===t))return this.update(t,i),I(this.lazyLoadHandler);const n=this.valueFormatter(i.value);let{src:r}=n;I(()=>{r=Et(t,this.options.scale)||r,this.observer&&this.observer.observe(t);const a=Object.keys(i.modifiers)[0];let o;a&&(o=s.context.$refs[a],o=o?o.$el||o:document.getElementById(a)),o||(o=Ut(t));const h=new Ne({bindType:i.arg,$parent:o,el:t,src:r,loading:n.loading,error:n.error,cors:n.cors,elRenderer:this.elRenderer.bind(this),options:this.options,imageCache:this.imageCache});this.listeners.push(h),_&&(this.addListenerTarget(window),this.addListenerTarget(o)),this.lazyLoadHandler(),I(()=>this.lazyLoadHandler())})}update(t,i,s){const n=this.valueFormatter(i.value);let{src:r}=n;r=Et(t,this.options.scale)||r;const a=this.listeners.find(o=>o.el===t);a?a.update({src:r,error:n.error,loading:n.loading}):this.add(t,i,s),this.observer&&(this.observer.unobserve(t),this.observer.observe(t)),this.lazyLoadHandler(),I(()=>this.lazyLoadHandler())}remove(t){if(!t)return;this.observer&&this.observer.unobserve(t);const i=this.listeners.find(s=>s.el===t);i&&(this.removeListenerTarget(i.$parent),this.removeListenerTarget(window),W(this.listeners,i),i.$destroy())}removeComponent(t){t&&(W(this.listeners,t),this.observer&&this.observer.unobserve(t.el),t.$parent&&t.$el.parentNode&&this.removeListenerTarget(t.$el.parentNode),this.removeListenerTarget(window))}setMode(t){!bt&&t===z.observer&&(t=z.event),this.mode=t,t===z.event?(this.observer&&(this.listeners.forEach(i=>{this.observer.unobserve(i.el)}),this.observer=null),this.targets.forEach(i=>{this.initListen(i.el,!0)})):(this.targets.forEach(i=>{this.initListen(i.el,!1)}),this.initIntersectionObserver())}addListenerTarget(t){if(!t)return;let i=this.targets.find(s=>s.el===t);return i?i.childrenCount++:(i={el:t,id:++this.targetIndex,childrenCount:1,listened:!0},this.mode===z.event&&this.initListen(i.el,!0),this.targets.push(i)),this.targetIndex}removeListenerTarget(t){this.targets.forEach((i,s)=>{i.el===t&&(i.childrenCount--,i.childrenCount||(this.initListen(i.el,!1),this.targets.splice(s,1),i=null))})}initListen(t,i){this.options.ListenEvents.forEach(s=>(i?_e:Fe)(t,s,this.lazyLoadHandler))}initEvent(){this.Event={listeners:{loading:[],loaded:[],error:[]}},this.$on=(t,i)=>{this.Event.listeners[t]||(this.Event.listeners[t]=[]),this.Event.listeners[t].push(i)},this.$once=(t,i)=>{const s=(...n)=>{this.$off(t,s),i.apply(this,n)};this.$on(t,s)},this.$off=(t,i)=>{if(!i){if(!this.Event.listeners[t])return;this.Event.listeners[t].length=0;return}W(this.Event.listeners[t],i)},this.$emit=(t,i,s)=>{this.Event.listeners[t]&&this.Event.listeners[t].forEach(n=>n(i,s))}}lazyLoadHandler(){const t=[];this.listeners.forEach(i=>{(!i.el||!i.el.parentNode)&&t.push(i),i.checkInView()&&i.load()}),t.forEach(i=>{W(this.listeners,i),i.$destroy()})}initIntersectionObserver(){bt&&(this.observer=new IntersectionObserver(this.observerHandler.bind(this),this.options.observerOptions),this.listeners.length&&this.listeners.forEach(t=>{this.observer.observe(t.el)}))}observerHandler(t){t.forEach(i=>{i.isIntersecting&&this.listeners.forEach(s=>{if(s.el===i.target){if(s.state.loaded)return this.observer.unobserve(s.el);s.load()}})})}elRenderer(t,i,s){if(!t.el)return;const{el:n,bindType:r}=t;let a;switch(i){case"loading":a=t.loading;break;case"error":a=t.error;break;default:({src:a}=t);break}if(r?n.style[r]='url("'+a+'")':n.getAttribute("src")!==a&&n.setAttribute("src",a),n.setAttribute("lazy",i),this.$emit(i,t,s),this.options.adapter[i]&&this.options.adapter[i](t,this.options),this.options.dispatchEvent){const o=new CustomEvent(i,{detail:t});n.dispatchEvent(o)}}valueFormatter(t){let i=t,{loading:s,error:n}=this.options;return nt(t)&&({src:i}=t,s=t.loading||this.options.loading,n=t.error||this.options.error),{src:i,loading:s,error:n}}}}var Ue=e=>({props:{tag:{type:String,default:"div"}},emits:["show"],render(){return At(this.tag,this.show&&this.$slots.default?this.$slots.default():null)},data(){return{el:null,state:{loaded:!1},show:!1}},mounted(){this.el=this.$el,e.addLazyBox(this),e.lazyLoadHandler()},beforeUnmount(){e.removeComponent(this)},methods:{checkInView(){const t=et(this.$el);return _&&t.top<window.innerHeight*e.options.preLoad&&t.bottom>0&&t.left<window.innerWidth*e.options.preLoad&&t.right>0},load(){this.show=!0,this.state.loaded=!0,this.$emit("show",this)},destroy(){return this.$destroy}}});const Xe={selector:"img"};class Ve{constructor({el:t,binding:i,vnode:s,lazy:n}){this.el=null,this.vnode=s,this.binding=i,this.options={},this.lazy=n,this.queue=[],this.update({el:t,binding:i})}update({el:t,binding:i}){this.el=t,this.options=Object.assign({},Xe,i.value),this.getImgs().forEach(n=>{this.lazy.add(n,Object.assign({},this.binding,{value:{src:"dataset"in n?n.dataset.src:n.getAttribute("data-src"),error:("dataset"in n?n.dataset.error:n.getAttribute("data-error"))||this.options.error,loading:("dataset"in n?n.dataset.loading:n.getAttribute("data-loading"))||this.options.loading}}),this.vnode)})}getImgs(){return Array.from(this.el.querySelectorAll(this.options.selector))}clear(){this.getImgs().forEach(i=>this.lazy.remove(i)),this.vnode=null,this.binding=null,this.lazy=null}}class qe{constructor({lazy:t}){this.lazy=t,this.queue=[]}bind(t,i,s){const n=new Ve({el:t,binding:i,vnode:s,lazy:this.lazy});this.queue.push(n)}update(t,i,s){const n=this.queue.find(r=>r.el===t);n&&n.update({el:t,binding:i,vnode:s})}unbind(t){const i=this.queue.find(s=>s.el===t);i&&(i.clear(),W(this.queue,i))}}var Ge=e=>({props:{src:[String,Object],tag:{type:String,default:"img"}},render(){var t,i;return At(this.tag,{src:this.renderSrc},(i=(t=this.$slots).default)==null?void 0:i.call(t))},data(){return{el:null,options:{src:"",error:"",loading:"",attempt:e.options.attempt},state:{loaded:!1,error:!1,attempt:0},renderSrc:""}},watch:{src(){this.init(),e.addLazyBox(this),e.lazyLoadHandler()}},created(){this.init()},mounted(){this.el=this.$el,e.addLazyBox(this),e.lazyLoadHandler()},beforeUnmount(){e.removeComponent(this)},methods:{init(){const{src:t,loading:i,error:s}=e.valueFormatter(this.src);this.state.loaded=!1,this.options.src=t,this.options.error=s,this.options.loading=i,this.renderSrc=this.options.loading},checkInView(){const t=et(this.$el);return t.top<window.innerHeight*e.options.preLoad&&t.bottom>0&&t.left<window.innerWidth*e.options.preLoad&&t.right>0},load(t=St){if(this.state.attempt>this.options.attempt-1&&this.state.error){t();return}const{src:i}=this.options;tt({src:i},({src:s})=>{this.renderSrc=s,this.state.loaded=!0},()=>{this.state.attempt++,this.renderSrc=this.options.error,this.state.error=!0})}}});const si={install(e,t={}){const i=Ye(),s=new i(t),n=new qe({lazy:s});e.config.globalProperties.$Lazyload=s,t.lazyComponent&&e.component("LazyComponent",Ue(s)),t.lazyImage&&e.component("LazyImage",Ge(s)),e.directive("lazy",{beforeMount:s.add.bind(s),updated:s.update.bind(s),unmounted:s.remove.bind(s)}),e.directive("lazy-container",{beforeMount:n.bind.bind(n),updated:n.update.bind(n),unmounted:n.unbind.bind(n)})}};export{ei as I,si as L,ti as S,Je as a};