| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| const button = document.querySelector('button.menu') |
| const overlay = document.querySelector('.left-nav__overlay') |
| |
| const eventTypes = { |
| show: 'leftNavigationShow', |
| hide: 'leftNavigationHide' |
| } |
| |
| /** |
| * @param {keyof eventTypes} type |
| */ |
| const emit = type => { |
| if (!CustomEvent) return |
| document.dispatchEvent(new CustomEvent(type, {bubbles: true})) |
| } |
| |
| /** |
| * @param {boolean} force |
| */ |
| const toggleMenu = (force) => { |
| const body = document.querySelector('body') |
| const HIDE_CLASS = 'hide-left-nav' |
| body.classList.toggle(HIDE_CLASS, force) |
| emit(eventTypes[body.classList.contains(HIDE_CLASS) ? 'hide' : 'show']) |
| } |
| |
| export const hideLeftNav = () => { |
| toggleMenu(true, false) |
| } |
| |
| if (button && overlay) { |
| const query = window.matchMedia('(max-width: 990px)') |
| |
| button.addEventListener('click', () => toggleMenu()) |
| overlay.addEventListener('click', () => toggleMenu()) |
| query.addListener((e) => { |
| toggleMenu(e.matches) |
| }) |
| toggleMenu(query.matches) |
| } |
| |
| document.addEventListener('click', e => { |
| if (e.target.matches('.left-nav button')) { |
| e.target.classList.toggle('expanded') |
| e.target.classList.toggle('collapsed') |
| e.target.nextElementSibling.classList.toggle('expanded') |
| e.target.nextElementSibling.classList.toggle('collapsed') |
| } |
| }) |