From f5dfd52f6efece2f4cad227044ecf4dd66301bbc Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 26 Aug 2023 21:36:58 +0800
Subject: ...

---
 FrontEnd/src/components/BlobImage.tsx | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 FrontEnd/src/components/BlobImage.tsx

(limited to 'FrontEnd/src/components/BlobImage.tsx')

diff --git a/FrontEnd/src/components/BlobImage.tsx b/FrontEnd/src/components/BlobImage.tsx
new file mode 100644
index 00000000..259c2210
--- /dev/null
+++ b/FrontEnd/src/components/BlobImage.tsx
@@ -0,0 +1,26 @@
+import { ComponentPropsWithoutRef, useState, useEffect } from "react";
+
+type BlobImageProps = Omit<ComponentPropsWithoutRef<"img">, "src"> & {
+  imgRef?: React.Ref<HTMLImageElement>;
+  src?: Blob | string | null;
+};
+
+export default function BlobImage(props: BlobImageProps) {
+  const { imgRef, src, ...otherProps } = props;
+
+  const [url, setUrl] = useState<string | null | undefined>(undefined);
+
+  useEffect(() => {
+    if (src instanceof Blob) {
+      const url = URL.createObjectURL(src);
+      setUrl(url);
+      return () => {
+        URL.revokeObjectURL(url);
+      };
+    } else {
+      setUrl(src);
+    }
+  }, [src]);
+
+  return <img ref={imgRef} {...otherProps} src={url ?? undefined} />;
+}
-- 
cgit v1.2.3

