From 09b7e1f737659d0ee75e5ac2fd5c1decf8fa15a6 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 4 Aug 2020 02:31:59 +0800
Subject: ...

---
 Timeline/ClientApp/src/app/common/BlobImage.tsx | 27 +++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Timeline/ClientApp/src/app/common/BlobImage.tsx

(limited to 'Timeline/ClientApp/src/app/common/BlobImage.tsx')

diff --git a/Timeline/ClientApp/src/app/common/BlobImage.tsx b/Timeline/ClientApp/src/app/common/BlobImage.tsx
new file mode 100644
index 00000000..91497705
--- /dev/null
+++ b/Timeline/ClientApp/src/app/common/BlobImage.tsx
@@ -0,0 +1,27 @@
+import React from 'react';
+
+import { ExcludeKey } from '../utilities/type';
+
+const BlobImage: React.FC<
+  ExcludeKey<React.ImgHTMLAttributes<HTMLImageElement>, 'src'> & { blob?: Blob }
+> = (props) => {
+  const { blob, ...otherProps } = props;
+
+  const [url, setUrl] = React.useState<string | undefined>(undefined);
+
+  React.useEffect(() => {
+    if (blob != null) {
+      const url = URL.createObjectURL(blob);
+      setUrl(url);
+      return () => {
+        URL.revokeObjectURL(url);
+      };
+    } else {
+      setUrl(undefined);
+    }
+  }, [blob]);
+
+  return <img {...otherProps} src={url} />;
+};
+
+export default BlobImage;
-- 
cgit v1.2.3

