Accessibility in Blazor ContextMenu Component

18 Feb 20221 minute to read

ARIA attributes

The web accessibility makes web content and web applications more accessible for people with disabilities. It especially helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies.

Context Menu provides built-in compliance with WAI-ARIA specifications. WAI-ARIA support is achieved through the attributes like aria-expanded and aria-haspopup applied for menu item in Context Menu. It helps the people with disabilities by providing information about the widget for assistive technology in the screen readers. Context Menu component contains the menu role and menuItem role.

Properties	Functionality
menu	This role will be specified for an item that has a sub-menu.
menuItem	This role will be specified for an item that does not have sub-menus.
aria-haspopup	Indicates the availability and type of interactive popup element.
aria-expanded	Indicates whether the subtree can be expanded or collapsed, as well as indicates whether its current state is expanded or collapsed.

Keyboard interaction

Keyboard shortcuts	Actions
Esc	Closes the opened ContextMenu.
Enter	Selects the focused item.
Up	Navigates up or to the previous menu item.
Down	Navigates down or to the next menu item.
Left	Closes the current sub menu and navigates to the parent menu.
Right	Navigates and opens the next sub menu.