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/*
This file is part of GNU Taler
(C) 2021 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 { h, VNode } from "preact";
import { useLayoutEffect, useRef, useState } from "preact/hooks";
import { TextInputProps } from "./TextInput";
const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024
export function FileInput(props: TextInputProps): VNode {
const inputRef = useRef<HTMLInputElement>(null);
useLayoutEffect(() => {
if (props.grabFocus) {
inputRef.current?.focus();
}
}, [props.grabFocus]);
const value = props.bind[0];
// const [dirty, setDirty] = useState(false)
const image = useRef<HTMLInputElement>(null)
const [sizeError, setSizeError] = useState(false)
function onChange(v: string): void {
// setDirty(true);
props.bind[1](v);
}
return <div class="field">
<label class="label">
<a onClick={() => image.current?.click()}>
{props.label}
</a>
{props.tooltip && <span class="icon has-tooltip-right" data-tooltip={props.tooltip}>
<i class="mdi mdi-information" />
</span>}
</label>
<div class="control">
<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 onChange("")
}
if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
setSizeError(true)
return onChange("")
}
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)
})
}} />
{props.error && <p class="help is-danger">{props.error}</p>}
{sizeError && <p class="help is-danger">
File should be smaller than 1 MB
</p>}
</div>
</div>
}
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