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fix: lazy load pixel worker

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This commit is contained in:
max_richter 2021-03-16 16:27:41 +01:00
parent 7e3e47b4ba
commit e4b3cce517
1 changed files with 11 additions and 9 deletions
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20
view/src/helpers/_pixelWorker.ts
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@ -1,16 +1,18 @@
const worker = new Worker("build/workers/pixel-worker.js");
let worker;
let i = 0;
let cb = {};
worker.addEventListener("message", ev => {
if (ev.data.i in cb) {
cb[ev.data.i](ev.data.result);
}
})
export default (msg: any): Promise<any> => new Promise((res, rej) => {
if (!worker) {
worker = new Worker("build/workers/pixel-worker.js");
worker.addEventListener("message", ev => {
if (ev.data.i in cb) {
cb[ev.data.i](ev.data.result);
}
})
}
i++;
const _i = i;
worker.postMessage({ i: _i, ...msg });