workermain.js

'use strict';let hasInitialised=false;let runtime=null;self.addEventListener("message",e=>{const data=e.data;const type=data["type"];if(type==="init-runtime")InitRuntime(data);else throw new Error(`unknown message '${type}'`);});self.c3_import=url=>import(url);function IsAbsoluteURL(url){return/^(?:[a-z\-]+:)?\/\//.test(url)||url.substr(0,5)==="data:"||url.substr(0,5)==="blob:"}function IsRelativeURL(url){return!IsAbsoluteURL(url)}
async function LoadScripts(scriptsArr){if(scriptsArr.length===1){const url=scriptsArr[0];await import(((IsRelativeURL(url)?"./":"")+url))}else{const scriptStr=scriptsArr.map(url=>`import "${IsRelativeURL(url)?"./":""}${url}";`).join("\n");const blobUrl=URL.createObjectURL(new Blob([scriptStr],{type:"application/javascript"}));try{await import(blobUrl)}catch(err){console.warn("[Construct] Unable to import script from blob: URL. Falling back to loading scripts sequentially, which could significantly increase loading time. Make sure blob: URLs are allowed for best performance.",
err);for(const url of scriptsArr)await import(((IsRelativeURL(url)?"./":"")+url))}}}
async function InitRuntime(data){if(hasInitialised)throw new Error("already initialised");hasInitialised=true;const messagePort=data["messagePort"];const runtimeBaseUrl=data["runtimeBaseUrl"];const exportType=data["exportType"];self.devicePixelRatio=data["devicePixelRatio"];const workerDependencyScripts=data["workerDependencyScripts"].map(urlOrBlob=>{let url=urlOrBlob;if(urlOrBlob instanceof Blob)url=URL.createObjectURL(urlOrBlob);else url=(new URL(url,runtimeBaseUrl)).toString();return url});const runOnStartupFunctions=
[];self.runOnStartup=function runOnStartup(f){if(typeof f!=="function")throw new Error("runOnStartup called without a function");runOnStartupFunctions.push(f)};const engineScripts=data["engineScripts"].map(url=>(new URL(url,runtimeBaseUrl)).toString());try{await LoadScripts([...workerDependencyScripts,...engineScripts])}catch(err){console.error("[C3 runtime] Failed to load all engine scripts in worker: ",err);return}const scriptsStatus=data["projectScriptsStatus"];self["C3_ProjectScriptsStatus"]=
scriptsStatus;const mainProjectScript=data["mainProjectScript"];const allProjectScripts=data["projectScripts"];for(let [originalUrl,loadUrl]of allProjectScripts){if(!loadUrl)loadUrl=originalUrl;if(originalUrl===mainProjectScript)try{await LoadScripts([loadUrl]);if(exportType==="preview"&&!scriptsStatus[originalUrl])ReportProjectMainScriptError(originalUrl,"main script did not run to completion",messagePort)}catch(err){ReportProjectMainScriptError(originalUrl,err,messagePort)}else if(originalUrl===
"scriptsInEvents.js"||originalUrl.endsWith("/scriptsInEvents.js"))await LoadScripts([loadUrl])}data["runOnStartupFunctions"]=runOnStartupFunctions;if(exportType==="preview"&&typeof self.C3.ScriptsInEvents!=="object"){const msg="Failed to load JavaScript code used in events. Check all your JavaScript code has valid syntax.";console.error("[C3 runtime] "+msg);messagePort.postMessage({"type":"alert-error","message":msg});return}messagePort.postMessage({"type":"creating-runtime"});runtime=self["C3_CreateRuntime"](data);
await self["C3_InitRuntime"](runtime,data)}function ReportProjectMainScriptError(url,err,messagePort){console.error(`[Preview] Failed to load project main script (${url}): `,err);const msg=`Failed to load project main script (${url}). Check all your JavaScript code has valid syntax. Press F12 and check the console for error details.`;messagePort.postMessage({"type":"alert-error","message":msg})};