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/*
* SonarQube
* Copyright (C) 2009-2022 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import classNames from 'classnames';
import * as React from 'react';
type EllipsisPredicate = (
node: HTMLElement,
props: Omit<AutoEllipsisProps, 'customShouldEllipsis'>
) => boolean;
interface AutoEllipsisProps {
customShouldEllipsis?: EllipsisPredicate;
maxHeight?: number;
maxWidth?: number;
useParent?: boolean;
}
interface Props extends AutoEllipsisProps {
children: React.ReactElement;
}
/*
* This component allows to automatically add the .text-ellipsis class on it's children if this one
* might overflow the max width/height passed as props.
* If one of maxHeight or maxWidth is not specified, they will be ignored in the conditions to add the ellipsis class.
* If useParent is true, then the parent size will be used instead of the undefined maxHeight/maxWidth
*/
export default function AutoEllipsis(props: Props) {
const { children, ...autoEllipsisProps } = props;
const [autoEllispis, ref] = useAutoEllipsis(autoEllipsisProps);
return React.cloneElement(children, {
className: classNames(children.props.className, { 'text-ellipsis': autoEllispis }),
ref,
});
}
export function useAutoEllipsis(props: AutoEllipsisProps): [boolean, (node: HTMLElement) => void] {
const [autoEllipsis, setAutoEllipsis] = React.useState(false);
// useCallback instead of useRef to be able to compute if the flag is needed as soon as the ref is attached
// useRef doesn't accept a callback to notify us that the current ref value was attached,
// see https://reactjs.org/docs/hooks-faq.html#how-can-i-measure-a-dom-node for more info on this.
const ref = React.useCallback(
(node: HTMLElement) => {
if (!autoEllipsis && node) {
const shouldEllipsis = props.customShouldEllipsis ?? defaultShouldEllipsis;
setAutoEllipsis(shouldEllipsis(node, props));
}
},
// We don't want to apply this effect when ellipsis state change, only this effect can change it
// eslint-disable-next-line react-hooks/exhaustive-deps
[props.customShouldEllipsis, props.maxHeight, props.maxWidth, props.useParent]
);
return [autoEllipsis, ref];
}
export const defaultShouldEllipsis: EllipsisPredicate = (
node,
{ useParent = true, maxWidth, maxHeight }
) => {
if (node.parentElement && useParent) {
maxWidth = maxWidth ?? node.parentElement.clientWidth;
maxHeight = maxHeight ?? node.parentElement.clientHeight;
}
return (
(maxWidth !== undefined && node.clientWidth > maxWidth) ||
(maxHeight !== undefined && node.clientHeight > maxHeight)
);
};
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