31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
import { HMR } from "./hmr-react.tsx";
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import { GroupSignal, GroupSignalHook } from "./hmr-signal.tsx";
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const FileListeners = new Map() as Map<string, Array<(module:unknown)=>void>>;
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export const FileListen =(inPath:string, inHandler:()=>void)=>
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{
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const members = FileListeners.get(inPath)??[];
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members.push(inHandler);
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FileListeners.set(inPath, members);
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};
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const Socket:WebSocket = new WebSocket("ws://"+document.location.host);
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Socket.addEventListener('message', async(event:{data:string})=>
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{
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// When a file changes, dynamically re-import it to get the updated members
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// send the updated members to any listeners for that file
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GroupSignal.reset();
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const reImport = await import(document.location.origin+event.data+"?reload="+Math.random());
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FileListeners.get(event.data)?.forEach(reExport=>reExport(reImport));
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GroupSignal.swap();
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GroupSignalHook.reset();
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HMR.update();
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GroupSignalHook.reset();
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});
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Socket.addEventListener("error", ()=>{clearInterval(SocketTimer); console.log("HMR socket lost")})
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const SocketTimer = setInterval(()=>{Socket.send("ping")}, 5000); |