accessible menu example

with role="navigation". This behaves just like the "accessible" menus of yesteryear. When one of the menu items has focus, pressing the Enter key, Spacebar or Down arrow will open the submenu panel, and pressing the Left or Right arrow key will shift focus to the adjacent menu item. The navigation menu at the top of this page demonstrates how one can implement an accessible mega menu as a jQuery plugin. (Kind of like usability testing, I suppose. Joomla has made a commitment to accessibility. you can't have top level menu items has links or a top level menu item with no drop down as the keyboard interaction no longer works properly. This is particularly true for menus, where the use of ARIA Menu roles will change the browse modality of screen readers. But the first proper accessible dynamic menu was UDM4, published right at the start of 2004, which was also a list-based structure styled with CSS, and had full keyboard navigation via tab and arrow-keys, menu close-timers and self-repositioning to make it decently usable. However, when adding a nested submenu, the triggering element that includes aria-haspopup must include role=”menuitem”, and not a button role. When menus are positioned off-screen, they may or may not be re-positioned on-screen when a keyboard user tabs to their parent top-level menu item. Some menus today do actually become visible when they receive keyboard focus, which solves the problem described in the previous paragraph and would seem at first glance to be fully accessible. The YUI group would be forced to learn - there's no other way to navigate. If a menu structure includes additional active element types or supplemental markup structures that are not supported within an ARIA Menu widget construct, then ARIA Menu markup cannot be used to represent the menu without impairing accessibility. Users are gently introduced to the new way, but their survival doesn't depend on their mastering it. I don't have Window-Eyes, but there's nothing unusual about the coding of the form fields on this blog, and JAWS and NVDA announce them as expected. Looking to advance your team’s knowledge of web accessibility best practices? The HTML structure for the mega menu is a nav element, or any other container element, containing a list. I know a little html and CSS but haven't created a real site. They have shipped with an accessible frontend template for years and with an accessible backend template for the past year and a half. Dropdown menus are typically hidden with display:none in CSS, and revealed by changing that to display:block using JavaScript (triggered, as noted above, by a hover event). In the ARIA spec, menubar is defined as "A presentation of menu that usually remains visible and is usually presented horizontally". Can include additional interactive controls (e.g., embedded form fields), supplementary textual content (e.g., headings and other active element types), and many other features. When these rules are broken, the accessibility tree is broken, and thus the accessibility of the widget is broken for screen reader users. Some people forget everyone else exists. Information and the operation of user interface must be understandable. when in a drop down menu the left arrow key will take you out of the drop down and to the top level menu item that comes before the drop down menu you're just in. The takeaway: Whichever menu you choose to implement, be sure to test carefully using mouse, keyboard, and if possible, multiple screen readers. Do the menu methods described in this blog post apply to mega menus, or is some alternative model required? However, in a sink-or-swim situation I think some users may give up and sink (I'm flashing back to experiments on "learned helplessness" that I did with rats as an undergrad). There's some supplemental explanatory text accompanying that definition, none of which dissuades me from using this role. When the button is activated, aria-expanded is toggled to reflect the displayed state of the associated named region, which is controlled by toggling the CSS display property between ‘none’ or ‘block’. JAWS currently provides a more user-friendly experience than either NVDA or VoiceOver, although I only tested the latter in OS X Snow Leopard - I haven't upgraded to Lion yet. Unlike the prior native menu syntax, any addition of embedded supplemental markup, such as headings, static text, nested active elements, or the inclusion of any text input field with or without a Menuitem role, will decrease, or in some cases, even critically impair accessibility for screen reader users. The accessible mega menu supports keyboard interaction modeled after the behavior described in the WAI-ARIA Menu or Menu bar (widget) design pattern, however we also try to respect users' general expectations for the behavior of links in a global navigation. My hunch is that it would be the OAA group. Left and Right must move focus between Menuitems within a horizontal menu, as opposed to Up and Down, which must move focus between Menuitems in a vertical menu. Each of the three example menus implements most of these recommendations. Moreover, the addition of supplemental markup such as static text and editable form fields, can be added to this basic syntax without negatively affecting accessibility, because none of these implementations conflict with each other. Following is some rudimentary CSS for our example which enables the showing/hiding of and the layout of lists panels in the mega menu.

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