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/*
This file is part of GNU Taler
(C) 2021-2023 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 { useTranslationContext } from "@gnu-taler/web-util/browser";
import { ComponentChildren, h, VNode } from "preact";
import { useRef, useState } from "preact/hooks";
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 { i18n } = useTranslationContext();
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 = window.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">
<i18n.Translate>Image should be smaller than 1 MB</i18n.Translate>
</p>
)}
{!value && (
<button class="button" onClick={() => image.current?.click()}>
<i18n.Translate>Add</i18n.Translate>
</button>
)}
{value && (
<button class="button" onClick={() => onChange(undefined!)}>
<i18n.Translate>Remove</i18n.Translate>
</button>
)}
</div>
</div>
</div>
);
}
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