blazor-micro-frontends/dist/blazor-micro-frontends.umd.js

Streamlined creation and integration of micro frontends using ASP.NET Blazor (Server/WebAssembly).

(function(i,l){typeof exports=="object"&&typeof module<"u"?l(exports):typeof define=="function"&&define.amd?define(["exports"],l):(i=typeof globalThis<"u"?globalThis:i||self,l(i["blazor-micro-frontends"]={}))})(this,function(i){"use strict";class l{get retryMaximumCount(){return this.retryMaximun}get retryIntervallInMilliseconds(){return this.retryIntervall}constructor(e,t){this.retryMaximun=e,this.retryIntervall=t,this.isReconnectCanceled=!1}async onConnectionDownAsync(){this.showReconnectModel(),await this.tryReconnectAsync()}onConnectionUp(){this.isReconnectCanceled=!0,this.hideReconnectModel()}showReconnectModel(){this.updateReconnectModal(e=>{const t=e.classList;t.contains("components-reconnect-modal-visible")||(this.resetReconnectModal(e),t.add("components-reconnect-modal-visible"))})}hideReconnectModel(){this.updateReconnectModal(e=>{const t=e.classList;t.contains("components-reconnect-modal-visible")&&(t.remove("components-reconnect-modal-visible"),this.resetReconnectModal(e))})}updateReconnectModal(e){this.reconnectionModals=document.querySelectorAll(".components-reconnect-modal"),this.reconnectionModals.forEach(t=>{e(t)})}async tryReconnectAsync(){this.isReconnectCanceled=!1;for(let e=0;e<this.retryMaximun;e++){if(this.isReconnectCanceled)return;this.updateReconnectText(e);try{if(await window.Blazor.reconnect())return;this.showReloadButton();return}catch{}await new Promise(t=>setTimeout(t,this.retryIntervall))}this.showReloadButton()}showReloadButton(){this.updateReconnectModal(e=>{this.hideReconnectSpinner(e),this.hideReconnectText(e);const t=e.querySelector(".components-reconnect-button");if(!t)return;const n=t.classList;n.contains("components-reconnect-button-visible")||n.add("components-reconnect-button-visible")})}updateReconnectText(e){const t=this.retryMaximun-e;this.updateReconnectModal(n=>{const o=n.querySelector(".components-reconnect-count");o&&(o.innerHTML=t.toString())})}hideReconnectSpinner(e){const t=e.querySelector(".components-reconnect-spinner");if(!t)return;const n=t.classList;n.contains("components-reconnect-spinner-hidden")||n.add("components-reconnect-spinner-hidden")}hideReconnectText(e){const t=e.querySelector(".components-reconnect-count");if(!t)return;const n=t.classList;n.contains("components-reconnect-count-hidden")||n.add("components-reconnect-count-hidden")}resetReconnectModal(e){const t=e.querySelector(".components-reconnect-spinner"),n=e.querySelector(".components-reconnect-count");if(!n||!t)return;t.classList.remove("components-reconnect-spinner-hidden"),n.classList.remove("components-reconnect-count-hidden"),n.innerHTML=""}}async function u(s,e,t=!0){return new Promise((n,o)=>{const r=document.createElement("script"),c=()=>{t&&document.body.removeChild(r)};r.crossOrigin="anonymous",r.async=!0,r.src=s,r.onload=()=>{c(),n()},r.onerror=()=>{c(),o(new Error("Failed to load script."))},e==null||e(r),document.body.appendChild(r)})}async function d(s,e){if(!e)return;const t=`${s}${e}.modules.json`,n=await fetch(t,{headers:{"Content-Type":"application/json"}});if(!n.ok)return;const o=await n.json();await Promise.all(o.map(async r=>{await u(`${s}${r}`,c=>{c.type="module"})}))}class h{constructor(e){this.pathBase=e}async startAsync(e){if(!this.blazorScript){console.error("No blazor script available.");return}await u(this.blazorScript,n=>{n.setAttribute("autostart","false")});const t=e??this.getDefaultOptions();window.Blazor.start(t)}}class p extends h{constructor(e,t){super(e),this.transport=t?4:5,this.blazorScript=`${this.pathBase}_framework/blazor.server.js`}useModulesLoader(e){return this.moduleName=e,this}setReconnectSettings(e,t){return this.retryMaximun=e,this.retryIntervall=t,this}getDefaultOptions(){const e=new l(this.retryMaximun??10,this.retryIntervall??1e3);return{initializers:{beforeStart:[()=>d(this.pathBase,this.moduleName)]},configureSignalR:t=>t.withUrl(`${this.pathBase}_blazor`,this.transport),reconnectionOptions:{maxRetries:e.retryMaximumCount,retryIntervalMilliseconds:e.retryIntervallInMilliseconds},reconnectionHandler:{onConnectionDown:()=>e.onConnectionDownAsync(),onConnectionUp:()=>e.onConnectionUp()}}}}function y(s,e,t,n,o){if(e==="manifest")return f(n,s);const r=new URL(s,document.baseURI),a=new URL(n,r).toString();return!o||location.hostname==="localhost"||e==="dotnetjs"||e==="configuration"?a:b(e,a,o)}async function f(s,e){var a;const t=await fetch(s,{cache:"no-cache"});if(!t.ok||e.length<2)return t;const n=await t.json(),o=new URL(document.baseURI),r=e.replace(o.pathname,"");if((a=n.resources)!=null&&a.libraryInitializers){const C=n.resources.libraryInitializers,m={};for(const[v,g]of Object.entries(C)){const M=`${r}${v}`;m[M]=g}n.resources.libraryInitializers=m}const c="application/json";return new Response(JSON.stringify(n),{headers:{"content-type":c}})}async function b(s,e,t){const n=await fetch(`${e}${t.extension}`,{cache:"no-cache"});if(!n.ok)return fetch(e);const o=await n.arrayBuffer(),r=new Int8Array(o),c=t.decode(r),a=s==="dotnetwasm"?"application/wasm":"application/octet-stream";return new Response(c,{headers:{"content-type":a}})}class z extends h{constructor(e){super(e),this.blazorScript=`${this.pathBase}_framework/blazor.webassembly.js`}useDecoder(e,t){return this.decoder={decode:e,extension:t},this}getDefaultOptions(){return{loadBootResource:(e,t,n)=>y(this.pathBase,e,t,n,this.decoder)}}}class S extends p{constructor(e,t){super(e,t),this.blazorScript=`${this.pathBase}_framework/blazor.web.js`}useDecoder(e,t){return this.decoder={decode:e,extension:t},this}getDefaultOptions(){const e=new l(this.retryMaximun??10,this.retryIntervall??1e3);return{circuit:{initializers:{beforeStart:[()=>d(this.pathBase,this.moduleName)]},configureSignalR:t=>t.withUrl(`${this.pathBase}_blazor`,this.transport),reconnectionOptions:{maxRetries:e.retryMaximumCount,retryIntervalMilliseconds:e.retryIntervallInMilliseconds},reconnectionHandler:{onConnectionDown:()=>e.onConnectionDownAsync(),onConnectionUp:()=>e.onConnectionUp()}},webAssembly:{loadBootResource:(t,n,o)=>y(this.pathBase,t,n,o,this.decoder)}}}}async function w(s,e){return new Promise((t,n)=>{const o=document.createElement("link");o.crossOrigin="anonymous",o.rel="stylesheet",o.href=s,o.onload=()=>t(),o.onerror=()=>{const r="Failed to load style.";n(new Error(r))},document.head.appendChild(o)})}class R{constructor(e,t){this.longPolling=!1,this.basePath=e,this.crossOrigin=t??"anonymous",this.blazorScripts=new Map,this.blazorStyles=new Map}useScripts(...e){return e.forEach(t=>{const n=`${this.basePath}${t}`,o=`body script[src="${n}"]`;this.blazorScripts.set(n,o)}),this}useStyles(...e){return e.forEach(t=>{const n=`${this.basePath}${t}`,o=`head link[href="${n}"]`;this.blazorStyles.set(n,o)}),this}useLongPolling(){return this.longPolling=!0,this}async initializeAsync(){if(this.blazorScripts.size<1){console.warn("No scripts are added.");return}const e=this.blazorScripts.keys().next();if(!(await fetch(e.value)).ok)return console.warn("The service is currently unavailable."),Promise.resolve(void 0);for(const[n,o]of this.blazorStyles)await this.addStylesAsync(n,o);for(const[n,o]of this.blazorScripts)await this.addScriptAsync(n,o)}addScriptAsync(e,t){return document.querySelector(t)?Promise.resolve():u(e,o=>{o.crossOrigin=this.crossOrigin,o.setAttribute("data-base-path",this.getScriptBasePath()),this.longPolling&&o.setAttribute("data-long-polling","true")},!1)}getScriptBasePath(){const e=new URL(document.baseURI).pathname;let t=this.basePath;return t.startsWith(e)&&(t=t.slice(e.length)),t.startsWith("/")?t:`/${t}`}addStylesAsync(e,t){return document.querySelector(t)?Promise.resolve():w(e)}}i.BlazorInitializerClient=R,i.BlazorInitializerServer=p,i.BlazorInitializerWasm=z,i.BlazorInitializerWeb=S,Object.defineProperty(i,Symbol.toStringTag,{value:"Module"})});