This role should only be used to define very dynamic and desktop-like web applications. The application role indicates to assistive technologies that an element and all of its children should be treated similar to a desktop application, and no traditional HTML interpretation techniques should be used. The alertdialog role is to be used on modal alert dialogs that interrupt a user's workflow to communicate an important message and require a response. The alert is a type of status processed as an atomic live region. The alert role is for important, and usually time-sensitive, information. The following are the reference pages covering the WAI-ARIA roles discussed on MDN. Note that there is also a widget role ( role="widget"), which is an abstract role and not in the widget role category. See the individual role documentation for more information. Composite widget rolesĪvoid using grid, listbox, and radiogroup, which we've included for completeness.
For most, semantic equivalents with accessible interactivity are available and supported. The difference between the two lists is that, generally, the widget roles require JavaScript interaction and the document structure roles don't necessarily.Īvoid using button, checkbox, gridcell, link, menuitem, menuitemcheckbox, menuitemradio, option, progressbar, radio, and textbox, which we've included for completeness. Similar to the document structure roles, some of these roles duplicate the semantics of native HTML elements that are well supported, and should not be used. The various widget role are used to define common interactive patterns. These are included for completeness, but in most cases are rarely, if ever, useful: separator (use if it doesn't have focus).The roles without HTML equivalents, such as presentation, toolbar and tooltip roles, provide information on the document structure to assistive technologies such as screen readers as equivalent native HTML tags are not available.įor most document structure roles, semantic HTML equivalent elements are available and supported. Most of these roles should no longer be used as browsers now support semantic HTML element with the same meaning. ARIA role typesĭocument Structure roles are used to provide a structural description for a section of content. The ARIA states and properties associated with each role are included in the role's pages, with each attribute also having a dedicated page. However, if the tab panel doesn't have nested tabs, the element with the tabpanel role is not in fact a tab panel and accessibility has actually been negatively impacted. Some roles require the inclusion of associated ARIA states or properties others are only valid in association with other roles.įor example, will be announced as a 'tab panel' by screen readers. The role attribute can provide semantics.ĪRIA roles are added to HTML elements using role="role type", where role type is the name of a role in the ARIA specification. Non-semantic elements in HTML do not have a role and without added semantics return null.
Tooltip windows grid full#
ARIA roles can be used to describe elements that don't natively exist in HTML or exist but don't yet have full browser support.īy default, many semantic elements in HTML have a role for example, has the "radio" role. ARIA roles provide semantic meaning to content, allowing screen readers and other tools to present and support interaction with object in a way that is consistent with user expectations of that type of object.
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