93 lines
2.3 KiB
JavaScript
93 lines
2.3 KiB
JavaScript
/*
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GoToSocial
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Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
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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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module.exports = function useTextInput({ name, Name }, {
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defaultValue = "",
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dontReset = false,
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validator,
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initValidation: _initValidation
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} = {}) {
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const [text, setText] = React.useState(defaultValue);
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const textRef = React.useRef(null);
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const initValidation = React.useRef(_initValidation); // memoize forever
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const [validation, setValidation] = React.useState(_initValidation ?? "");
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const [_isValidating, startValidation] = React.useTransition();
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const valid = validation == "";
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const isFirstUpdate = React.useRef(true);
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function onChange(e) {
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let input = e.target.value;
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setText(input);
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if (validator) {
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startValidation(() => {
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let validatorMsg = (isFirstUpdate.current && initValidation.current)
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? initValidation.current
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: validator(input);
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if (isFirstUpdate.current) {
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isFirstUpdate.current = false;
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return; // No need to update anything
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}
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setValidation(validatorMsg);
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});
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}
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}
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function reset() {
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if (!dontReset) {
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setText(defaultValue);
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}
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}
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React.useEffect(() => {
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if (validator && textRef.current) {
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textRef.current.setCustomValidity(validation);
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}
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}, [validation, validator]);
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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]: text,
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[`${name}Ref`]: textRef,
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[`set${Name}`]: setText,
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[`${name}Valid`]: valid,
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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: text,
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ref: textRef,
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setter: setText,
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valid,
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validate: () => setValidation(validator(text)),
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hasChanged: () => text != defaultValue
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});
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}; |