memorize grid config

packages/web/src/utility/useGridConfig.js

@@ -0,0 +1,18 @@
+import { createGridConfig } from '@dbgate/datalib';
+import React from 'react';
+
+const loadGridConfigFunc = (tabid) => () => {
+  const existing = localStorage.getItem(`grid_${tabid}`);
+  if (existing) return JSON.parse(existing);
+  return createGridConfig();
+};
+
+export default function useGridConfig(tabid) {
+  const [config, setConfig] = React.useState(loadGridConfigFunc(tabid));
+
+  React.useEffect(() => {
+    localStorage.setItem(`grid_${tabid}`, JSON.stringify(config));
+  }, [config]);
+
+  return [config, setConfig];
+}