gitlab-org--gitlab-foss/app/assets/javascripts/issuable_context.js

import Cookies from 'js-cookie';
import bp from './breakpoints';
import UsersSelect from './users_select';

export default class IssuableContext {
  constructor(currentUser) {
    this.userSelect = new UsersSelect(currentUser);

    $('select.select2').select2({
      width: 'resolve',
      dropdownAutoWidth: true,
    });

    $('.issuable-sidebar .inline-update').on('change', 'select', function onClickSelect() {
      return $(this).submit();
    });
    $('.issuable-sidebar .inline-update').on('change', '.js-assignee', function onClickAssignee() {
      return $(this).submit();
    });
    $(document)
      .off('click', '.issuable-sidebar .dropdown-content a')
      .on('click', '.issuable-sidebar .dropdown-content a', e => e.preventDefault());

    $(document)
      .off('click', '.edit-link')
      .on('click', '.edit-link', function onClickEdit(e) {
        e.preventDefault();
        const $block = $(this).parents('.block');
        const $selectbox = $block.find('.selectbox');
        if ($selectbox.is(':visible')) {
          $selectbox.hide();
          $block.find('.value').show();
        } else {
          $selectbox.show();
          $block.find('.value').hide();
        }

        if ($selectbox.is(':visible')) {
          setTimeout(() => $block.find('.dropdown-menu-toggle').trigger('click'), 0);
        }
      });

    window.addEventListener('beforeunload', () => {
      // collapsed_gutter cookie hides the sidebar
      const bpBreakpoint = bp.getBreakpointSize();
      if (bpBreakpoint === 'xs' || bpBreakpoint === 'sm') {
        Cookies.set('collapsed_gutter', true);
      }
    });
  }
}