WAI-ARIA

Description [Deprecated in ARIA 1.1] In ARIA 1.1 the drag and drop attributes aria-grabbed and aria-dropeffect were slated to be deprecated.The idea was to use native accessibility API features for drag and drop instead. However, in practice, since the accessibility API features for accessible drag and drop still don’t exist and likely won’t for several…

Description Indicates whether the element is exposed to an accessibility API. See related aria-disabled. User agents determine an element’s hidden status based on whether it is rendered, and the rendering is usually controlled by CSS. For example, an element whose display property is set to none is not rendered. An element is considered hidden if…

Description Indicates the entered value does not conform to the format expected by the application. See related aria-errormessage. If the value is computed to be invalid or out-of-range, the application author SHOULD set this attribute to true. User agents SHOULD inform the user of the error. Application authors SHOULD provide suggestions for corrections if they…

Description Indicates the current “pressed” state of toggle buttons. See related aria-checked and aria-selected. Toggle buttons require a full press-and-release cycle to change their value. Activating it once changes the value to true, and activating it another time changes the value back to false. A value of mixed means that the values of more than…

Description Indicates the current “selected” state of various widgets. See related aria-checked and aria-pressed. This attribute is used with single-selection and multiple-selection widgets: Single-selection containers where the currently focused item is not selected. The selection normally follows the focus, and is managed by the user agent. Multiple-selection containers. Authors SHOULD ensure that any selectable descendant…