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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 { ComponentChildren, h, VNode } from "preact";
import { useRef, useState } from "preact/hooks";
import { Translate } from "../../i18n/index.js";
import { MAX_IMAGE_SIZE as MAX_IMAGE_UPLOAD_SIZE } from "../../utils/constants.js";
import { InputProps, useField } from "./useField.js";
export interface Props<T> extends InputProps<T> {
expand?: boolean;
addonAfter?: ComponentChildren;
children?: ComponentChildren;
}
export function InputImage<T>({ name, readonly, placeholder, tooltip, label, help, children, expand }: Props<keyof T>): VNode {
const { error, value, onChange } = useField<T>(name);
const image = useRef<HTMLInputElement>(null)
const [sizeError, setSizeError] = useState(false)
return <div class="field is-horizontal">
<div class="field-label is-normal">
<label class="label">
{label}
{tooltip && <span class="icon has-tooltip-right" data-tooltip={tooltip}>
<i class="mdi mdi-information" />
</span>}
</label>
</div>
<div class="field-body is-flex-grow-3">
<div class="field">
<p class={expand ? "control is-expanded" : "control"}>
{value &&
<img src={value} style={{ width: 200, height: 200 }} onClick={() => image.current?.click()} />
}
<input
ref={image} style={{ display: 'none' }}
type="file" name={String(name)}
placeholder={placeholder} readonly={readonly}
onChange={e => {
const f: FileList | null = e.currentTarget.files
if (!f || f.length != 1) {
return onChange(undefined!)
}
if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
setSizeError(true)
return onChange(undefined!)
}
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)
})
}} />
{help}
{children}
</p>
{error && <p class="help is-danger">{error}</p>}
{sizeError && <p class="help is-danger">
<Translate>Image should be smaller than 1 MB</Translate>
</p>}
{!value &&
<button class="button" onClick={() => image.current?.click()} ><Translate>Add</Translate></button>
}
{value &&
<button class="button" onClick={() => onChange(undefined!)} ><Translate>Remove</Translate></button>
}
</div>
</div>
</div>
}
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