php-flarum/js/forum/src/components/PostMeta.js

import Component from 'flarum/Component';
import humanTime from 'flarum/helpers/humanTime';
import fullTime from 'flarum/helpers/fullTime';

/**
 * The `PostMeta` component displays the time of a post, and when clicked, shows
 * a dropdown containing more information about the post (number, full time,
 * permalink).
 *
 * ### Props
 *
 * - `post`
 */
export default class PostMeta extends Component {
  view() {
    const post = this.props.post;
    const time = post.time();
    const permalink = window.location.origin + app.route.post(post);
    const touch = 'ontouchstart' in document.documentElement;

    // When the dropdown menu is shown, select the contents of the permalink
    // input so that the user can quickly copy the URL.
    const selectPermalink = function() {
      setTimeout(() => $(this).parent().find('.PostMeta-permalink').select());

      m.redraw.strategy('none');
    };

    return (
      <div className="Dropdown PostMeta">
        <a className="Dropdown-toggle" onclick={selectPermalink} data-toggle="dropdown">
          {humanTime(time)}
        </a>

        <div className="Dropdown-menu dropdown-menu">
          <span className="PostMeta-number">{app.trans('core.post_number', {number: post.number()})}</span>{' '}
          {fullTime(time)}
          {touch
            ? <a className="Button PostMeta-permalink" href={permalink}>{permalink}</a>
            : <input className="FormControl PostMeta-permalink" value={permalink} onclick={e => e.stopPropagation()} />}
        </div>
      </div>
    );
  }
}