Docs: Example "Two-level menu with toggle" not working

[mandrasch]

Thanks very much for providing this as open source! 👍

Summary

I tried to setup the example Two-level menu with toggle in a Codepen, but I get

TypeError: Cannot read properties of null (reading 'addEventListener')
    at _baseMenu.js:881:25

Error results from .dom.link:

 _handleFocus() {
    this.elements.menuItems.forEach((menuItem, index) => {
      menuItem.dom.link.addEventListener("focus", () => {

I already changed this line from docs

const menu = new AccessibleMenu.Bootstrap5DisclosureMenu({

to

const menu = new AccessibleMenuBootstrap5.Bootstrap5DisclosureMenu({

initialize it correctly.

I load the bootstrap css and the following js in codepen:

https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js
https://cdn.jsdelivr.net/npm/accessible-menu-bootstrap-5@1.0.0/dist/accessible-menu-bs5.min.js

Live: Codepen Live
Editor: Codepen Editor

Is there something I missed? I'm not familiar with dom.link of elements?

Thanks in advance!

[NickDJM]

This sounds like a case of me copy pasting examples from the other projects and not actually checking to make sure they work.

I'll double check all the examples to make sure they are accurate.

[NickDJM]

@mandrasch I have a PR open with example fixes. I've tested them and it looks good. If you have time do you want to give them a try as well? I'm hoping this will resolve the issue (it was 100% the case that I just copy pasted the examples from the base project and never updated them for Bootstrap).

This also was the case for the BS4 one as well, so we have 2 fixes coming out!

[mandrasch]

Thanks very much! 👍 I'll have a look (today or within next few days)

[mandrasch]

Just a quick notice: I created a repo for the examples of bs4, took the code from branch fix-examples

Repo: https://github.com/mandrasch/accessible-menu-bootstrap-examples
Live: https://mandrasch.github.io/accessible-menu-bootstrap-examples/

Implementation is (inline JS) https://github.com/mandrasch/accessible-menu-bootstrap-examples/blob/main/bs4-examples.njk

Had to change some small things to get it working. I'll will post these here later. :-)

[mandrasch]

Things I had to change (bootstrap 4):

1. For https://github.com/NickDJM/accessible-menu-bootstrap-4/blob/fix-examples/docs/basics/single-level-menu.md, I changed new command and query selector in JS:

const menu = new AccessibleMenuBootstrap4.Bootstrap4DisclosureMenu({

Changed the selector, it was set to menu:

  menuElement: document.querySelector("#main-nav .navbar-nav"),

2. For https://github.com/NickDJM/accessible-menu-bootstrap-4/blob/fix-examples/docs/basics/single-level-menu-with-toggle.md I changed the init as well:

const menu = new AccessibleMenuBootstrap4.Bootstrap4DisclosureMenu({

3. For https://github.com/NickDJM/accessible-menu-bootstrap-4/blob/fix-examples/docs/basics/two-level-menu-with-toggle.md changed this as well:

const menu = new AccessibleMenuBootstrap4.Bootstrap4Menubar({

4. Added navbar-light and bg-light class to main-navs in all examples for bs styling:

<nav id="main-nav-single-level" aria-label="Main" class="navbar navbar-light bg-light">

5. Noticed that there is the dropdown icon in text and the dropdown-toggle css (:after) from bs
   

[NickDJM]

Haven't had a chance to look at this yet- been super busy. I should have some free time tonight though.

[NickDJM]

@mandrasch Updated the fix-examples branch with the all changes above (excluding 4 since that's just colour changes).

Are you planning on keeping hose examples up? If so, we can link to them in the docs.

[mandrasch]

@NickDJM Yes sure, I can keep this repo up. :)

Just removed dropdown html icons as well.

[NickDJM]

Examples have been updated and merged.