From e4b3cce51758cb6269fc550ccc9a75cd999044a0 Mon Sep 17 00:00:00 2001
From: Jim Richter <jim-x@web.de>
Date: Tue, 16 Mar 2021 16:27:41 +0100
Subject: [PATCH] fix: lazy load pixel worker

---
 view/src/helpers/_pixelWorker.ts | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/view/src/helpers/_pixelWorker.ts b/view/src/helpers/_pixelWorker.ts
index 17f4b7d..0d4664d 100644
--- a/view/src/helpers/_pixelWorker.ts
+++ b/view/src/helpers/_pixelWorker.ts
@@ -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 });