var live=function(){"use strict";class Live{constructor(document,url){this.document=document;this.url=url;this.events=[];this.failures=0;this.document.addEventListener("visibilitychange",()=>this.handleVisibilityChange());this.handleVisibilityChange()}connect(){if(this.server)return;let server=this.server=new WebSocket(this.url.href);server.onopen=()=>{this.failures=0;this.attach()};server.onmessage=message=>{const[name,_arguments]=JSON.parse(message.data);this[name](..._arguments)};server.onerror=()=>{this.failures+=1};server.onclose=()=>{this.server=null;let delay=100*(this.failures+1)**2;setTimeout(()=>this.connect(),delay>6e4?6e4:delay)}}disconnect(){if(this.server){this.server.close();this.server=null}}createDocumentFragment(html){return this.document.createRange().createContextualFragment(html)}replace(id,html){let element=document.getElementById(id);morphdom(element,html)}prepend(id,html){let element=document.getElementById(id);let fragment=this.createDocumentFragment(html);element.prepend(fragment)}append(id,html){let element=document.getElementById(id);let fragment=this.createDocumentFragment(html);element.append(fragment)}dispatch(id,type,details){let element=document.getElementById(id);element.dispatchEvent(new CustomEvent(type,details))}trigger(id,event){this.connect();this.send(JSON.stringify({id:id,event:event}))}forward(id,event,details){this.trigger(id,{type:event.type,details:details})}send(message){try{this.server.send(message)}catch(error){this.events.push(message)}}flush(){if(this.events.length===0)return;let events=this.events;this.events=[];for(var event of events){this.send(event)}}bind(elements){for(var element of elements){this.send(JSON.stringify({bind:element.id,data:element.dataset}))}}bindElementsByClassName(selector="live"){this.bind(this.document.getElementsByClassName(selector));this.flush()}handleVisibilityChange(){if(document.hidden){this.disconnect()}else{this.connect()}}attach(){if(this.document.readyState==="loading"){this.document.addEventListener("DOMContentLoaded",()=>this.bindElementsByClassName())}else{this.bindElementsByClassName()}}}let url=new URL("live",location.href);url.protocol=url.protocol.replace("http","ws");let live=new Live(document,url);return live}();