98 lines
2.5 KiB
JavaScript
98 lines
2.5 KiB
JavaScript
// Inspired by <CommonLink> from Mastodon GO!
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// ~ 😘 kibi!
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// Package imports.
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import PropTypes from 'prop-types';
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import { PureComponent } from 'react';
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import classNames from 'classnames';
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// Utils.
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import { assignHandlers } from 'flavours/glitch/utils/react_helpers';
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// Handlers.
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const handlers = {
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// We don't handle clicks that are made with modifiers, since these
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// often have special browser meanings (eg, "open in new tab").
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click (e) {
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const { onClick } = this.props;
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if (!onClick || e.button || e.ctrlKey || e.shiftKey || e.altKey || e.metaKey) {
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return;
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}
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onClick(e);
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e.preventDefault(); // Prevents following of the link
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},
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};
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// The component.
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export default class Link extends PureComponent {
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// Constructor.
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constructor (props) {
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super(props);
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assignHandlers(this, handlers);
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}
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// Rendering.
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render () {
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const { click } = this.handlers;
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const {
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children,
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className,
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href,
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onClick,
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role,
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title,
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...rest
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} = this.props;
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const computedClass = classNames('link', className, `role-${role}`);
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// We assume that our `onClick` is a routing function and give it
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// the qualities of a link even if no `href` is provided. However,
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// if we have neither an `onClick` or an `href`, our link is
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// purely presentational.
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const conditionalProps = {};
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if (href) {
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conditionalProps.href = href;
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conditionalProps.onClick = click;
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} else if (onClick) {
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conditionalProps.onClick = click;
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conditionalProps.role = 'link';
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conditionalProps.tabIndex = 0;
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} else {
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conditionalProps.role = 'presentation';
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}
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// If we were provided a `role` it overwrites any that we may have
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// set above. This can be used for "links" which are actually
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// buttons.
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if (role) {
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conditionalProps.role = role;
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}
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// Rendering. We set `rel='noopener'` for user privacy, and our
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// `target` as `'_blank'`.
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return (
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<a
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className={computedClass}
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{...conditionalProps}
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rel='noopener'
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target='_blank'
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title={title}
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{...rest}
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>{children}</a>
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);
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}
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}
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// Props.
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Link.propTypes = {
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children: PropTypes.node,
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className: PropTypes.string,
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href: PropTypes.string, // The link destination
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onClick: PropTypes.func, // A function to call instead of opening the link
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role: PropTypes.string, // An ARIA role for the link
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title: PropTypes.string, // A title for the link
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};
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