aboutsummaryrefslogtreecommitdiff
path: root/Timeline/ClientApp/src/app/common/BlobImage.tsx
diff options
context:
space:
mode:
authorcrupest <crupest@outlook.com>2020-08-04 02:31:59 +0800
committercrupest <crupest@outlook.com>2020-08-04 02:31:59 +0800
commit89806d334fe2c7ef0ea8b3d12c74759e8e3ba860 (patch)
tree47b85b9bfb5026743a4a9984c5c24b8363e8a5af /Timeline/ClientApp/src/app/common/BlobImage.tsx
parentff94145165d6877e47db7ec11c4d3b802f6f3532 (diff)
downloadtimeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.tar.gz
timeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.tar.bz2
timeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.zip
...
Diffstat (limited to 'Timeline/ClientApp/src/app/common/BlobImage.tsx')
-rw-r--r--Timeline/ClientApp/src/app/common/BlobImage.tsx27
1 files changed, 27 insertions, 0 deletions
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;