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author | crupest <crupest@outlook.com> | 2020-08-04 02:31:59 +0800 |
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committer | crupest <crupest@outlook.com> | 2020-08-04 02:31:59 +0800 |
commit | 89806d334fe2c7ef0ea8b3d12c74759e8e3ba860 (patch) | |
tree | 47b85b9bfb5026743a4a9984c5c24b8363e8a5af /Timeline/ClientApp/src/app/common/BlobImage.tsx | |
parent | ff94145165d6877e47db7ec11c4d3b802f6f3532 (diff) | |
download | timeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.tar.gz timeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.tar.bz2 timeline-89806d334fe2c7ef0ea8b3d12c74759e8e3ba860.zip |
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Diffstat (limited to 'Timeline/ClientApp/src/app/common/BlobImage.tsx')
-rw-r--r-- | Timeline/ClientApp/src/app/common/BlobImage.tsx | 27 |
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;
|