Page Title: Der Zungenkuss - Frag doch mal den Papa ...
May 21, 2018 11:51

Widgets must have owned elements


Severity Action
no actions


Rule ID Widget 7
Definition Container widgets must have required owned elements.
  • ARIA roles, properties and states describes the features of interactive widgets to users of assistive technologies, especially screen reader users.
  • Roles that are associated with container widgets have important parent/child relationships with other roles.
  • Parent/Child relationships are used by assistive technologies for computing the number of items in a container and the item position.
  • Container roles are also used by assistive technologies to provide enhanced navigation features for moving between items in lists, tables, grids and treegrids.
WCAG Success Criteria

4.1.2 Name, Role, Value (Level A, Primary Success Criterion)

Rule Category Widgets/Scripting
Scope Element
Target Resources Widgets with required owned elements
  • Required owned elements can be defined using the HTML DOM structure or the aria-owns attribute.
  • Use the DOM structure to add required owned elements by making them a descendant of the container element.
  • When the owned elements are not descendants of the container element, use the aria-owns attribute on the container element to reference the owned elements.
  • When aria-busy attribute is set to true on the container element, the container element does not need to own any required elements. aria-busy should be used when a container element is being dynamically populated.
  • NOTE: The DOM structure technique is preferred over the aria-owns technique, since it is less likely to result in authoring errors associated with creating and referencing elements with unique ids.
Informational Links

Element Results

Element Identifier Result Element Position Message

Column Definitions

Element Identifier
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.