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

import { GlBreakpointInstance as bp } from '@gitlab/ui/dist/utils';
import $ from 'jquery';
import { setCookie } from '~/lib/utils/common_utils';
import { loadCSSFile } from '~/lib/utils/css_utils';
import UsersSelect from '~/users_select';

export default class IssuableContext {
  constructor(currentUser) {
    this.userSelect = new UsersSelect(currentUser);
    this.reviewersSelect = new UsersSelect(currentUser, '.js-reviewer-search');

    const $select2 = $('select.select2');

    if ($select2.length) {
      import(/* webpackChunkName: 'select2' */ 'select2/select2')
        .then(() => {
          // eslint-disable-next-line promise/no-nesting
          loadCSSFile(gon.select2_css_path)
            .then(() => {
              $select2.select2({
                width: 'resolve',
                dropdownAutoWidth: true,
              });
            })
            .catch(() => {});
        })
        .catch(() => {});
    }

    $('.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:not(.dont-hide)').show();
        } else {
          $selectbox.show();
          $block.find('.value:not(.dont-hide)').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();
      const supportedSizes = ['xs', 'sm', 'md'];

      if (supportedSizes.includes(bpBreakpoint)) {
        setCookie('collapsed_gutter', true);
      }
    });
  }
}