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/*
This file is part of GNU Taler
(C) 2022 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { ComponentChildren, h, VNode } from "preact";
import { useRef, useState } from "preact/hooks";
import { Button } from "./Button.js";
// import { MAX_IMAGE_SIZE as MAX_IMAGE_UPLOAD_SIZE } from "../../utils/constants";
// import { InputProps, useField } from "./useField";
const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
interface Props {
children: ComponentChildren;
onChange: (v: string) => void;
}
export function InputFile<T>({ onChange, children }: Props): VNode {
const image = useRef<HTMLInputElement>(null);
const [sizeError, setSizeError] = useState(false);
return (
<div>
<p>
<Button
variant="contained"
onClick={async () => image.current?.click()}
>
{children}
</Button>
<input
ref={image}
style={{ display: "none" }}
type="file"
// name={String(name)}
onChange={(e) => {
const f: FileList | null = e.currentTarget.files;
if (!f || f.length != 1) {
return;
}
if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
setSizeError(true);
return;
}
setSizeError(false);
return f[0].arrayBuffer().then((b) => {
const b64 = btoa(
new Uint8Array(b).reduce(
(data, byte) => data + String.fromCharCode(byte),
"",
),
);
return onChange(`data:${f[0].type};base64,${b64}` as any);
});
}}
/>
</p>
{sizeError && <p>Image should be smaller than 1 MB</p>}
</div>
);
}
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