Rename JSX files with proper .jsx extension (#23733)

app/javascript/mastodon/features/ui/components/header.jsx

@@ -0,0 +1,87 @@
+import React from 'react';
+import Logo from 'mastodon/components/logo';
+import { Link, withRouter } from 'react-router-dom';
+import { FormattedMessage } from 'react-intl';
+import { registrationsOpen, me } from 'mastodon/initial_state';
+import Avatar from 'mastodon/components/avatar';
+import PropTypes from 'prop-types';
+import { connect } from 'react-redux';
+import { openModal } from 'mastodon/actions/modal';
+
+const Account = connect(state => ({
+  account: state.getIn(['accounts', me]),
+}))(({ account }) => (
+  <Link to={`/@${account.get('acct')}`} title={account.get('acct')}>
+    <Avatar account={account} size={35} />
+  </Link>
+));
+
+const mapDispatchToProps = (dispatch) => ({
+  openClosedRegistrationsModal() {
+    dispatch(openModal('CLOSED_REGISTRATIONS'));
+  },
+});
+
+export default @connect(null, mapDispatchToProps)
+@withRouter
+class Header extends React.PureComponent {
+
+  static contextTypes = {
+    identity: PropTypes.object,
+  };
+
+  static propTypes = {
+    openClosedRegistrationsModal: PropTypes.func,
+    location: PropTypes.object,
+  };
+
+  render () {
+    const { signedIn } = this.context.identity;
+    const { location, openClosedRegistrationsModal } = this.props;
+
+    let content;
+
+    if (signedIn) {
+      content = (
+        <>
+          {location.pathname !== '/publish' && <Link to='/publish' className='button'><FormattedMessage id='compose_form.publish_form' defaultMessage='Publish' /></Link>}
+          <Account />
+        </>
+      );
+    } else {
+      let signupButton;
+
+      if (registrationsOpen) {
+        signupButton = (
+          <a href='/auth/sign_up' className='button button-tertiary'>
+            <FormattedMessage id='sign_in_banner.create_account' defaultMessage='Create account' />
+          </a>
+        );
+      } else {
+        signupButton = (
+          <button className='button button-tertiary' onClick={openClosedRegistrationsModal}>
+            <FormattedMessage id='sign_in_banner.create_account' defaultMessage='Create account' />
+          </button>
+        );
+      }
+
+      content = (
+        <>
+          <a href='/auth/sign_in' className='button'><FormattedMessage id='sign_in_banner.sign_in' defaultMessage='Sign in' /></a>
+          {signupButton}
+        </>
+      );
+    }
+
+    return (
+      <div className='ui__header'>
+        <Link to='/' className='ui__header__logo'><Logo /></Link>
+
+        <div className='ui__header__links'>
+          {content}
+        </div>
+      </div>
+    );
+  }
+
+}