php-flarum/js/forum/src/components/form-modal.js

import Component from 'flarum/component';
import LoadingIndicator from 'flarum/components/loading-indicator';
import Alert from 'flarum/components/alert';
import icon from 'flarum/helpers/icon';

export default class FormModal extends Component {
  constructor(props) {
    super(props);

    this.alert = m.prop();
    this.loading = m.prop(false);
  }

  view(options) {
    var alert = this.alert();
    if (alert) {
      alert.props.dismissible = false;
    }

    return m('div.modal-dialog', {className: options.className, config: this.element}, [
      m('div.modal-content', [
        m('a[href=javascript:;].btn.btn-icon.btn-link.close.back-control', {onclick: this.hide.bind(this)}, icon('times')),
        m('form', {onsubmit: this.onsubmit.bind(this)}, [
          m('div.modal-header', m('h3.title-control', options.title)),
          alert ? m('div.modal-alert', alert) : '',
          m('div.modal-body', options.body),
          options.footer ? m('div.modal-footer', options.footer) : ''
        ])
      ]),
      LoadingIndicator.component({className: 'modal-loading'+(this.loading() ? ' active' : '')})
    ])
  }

  ready() {
    this.$(':input:first').select();
  }

  hide() {
    app.modal.close();
  }

  handleErrors(errors) {
    if (errors) {
      this.alert(new Alert({
        type: 'warning',
        message: errors.map((error, k) => [error.detail, k < errors.length - 1 ? m('br') : ''])
      }));
    }

    m.redraw();

    if (errors) {
      this.$('[name='+errors[0].path+']').select();
    }
  }
}