92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
/*
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GoToSocial
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Copyright (C) GoToSocial Authors admin@gotosocial.org
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SPDX-License-Identifier: AGPL-3.0-or-later
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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"use strict";
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const React = require("react");
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const prettierBytes = require("prettier-bytes");
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module.exports = function useFileInput({ name, _Name }, {
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withPreview,
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maxSize,
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initialInfo = "no file selected"
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} = {}) {
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const [file, setFile] = React.useState();
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const [imageURL, setImageURL] = React.useState();
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const [info, setInfo] = React.useState();
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function onChange(e) {
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let file = e.target.files[0];
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setFile(file);
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URL.revokeObjectURL(imageURL);
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if (file != undefined) {
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if (withPreview) {
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setImageURL(URL.createObjectURL(file));
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}
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let size = prettierBytes(file.size);
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if (maxSize && file.size > maxSize) {
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size = <span className="error-text">{size}</span>;
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}
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setInfo(<>
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{file.name} ({size})
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</>);
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} else {
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setInfo();
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}
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}
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function reset() {
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URL.revokeObjectURL(imageURL);
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setImageURL();
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setFile();
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setInfo();
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}
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const infoComponent = (
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<span className="form-info">
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{info
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? info
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: initialInfo
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}
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</span>
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);
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// Array / Object hybrid, for easier access in different contexts
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return Object.assign([
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onChange,
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reset,
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{
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[name]: file,
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[`${name}URL`]: imageURL,
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[`${name}Info`]: infoComponent,
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}
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], {
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onChange,
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reset,
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name,
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value: file,
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previewValue: imageURL,
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hasChanged: () => file != undefined,
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infoComponent
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});
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}; |