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