This AccessibleSelection interface
provides the standard mechanism for an assistive technology to determine
what the current selected children are, as well as modify the selection set.
Any object that has children that can be selected should support
the AccessibleSelection interface. Applications can determine if an object supports the
AccessibleSelection interface by first obtaining its AccessibleContext (see
Accessible
) and then calling the
AccessibleContext#getAccessibleSelection
method.
If the return value is not null, the object supports this interface.
Adds the specified Accessible child of the object to the object's
selection. If the object supports multiple selections,
the specified child is added to any existing selection, otherwise
it replaces any existing selection in the object. If the
specified child is already selected, this method has no effect.
Clears the selection in the object, so that no children in the
object are selected.
Returns an Accessible representing the specified selected child
of the object. If there isn't a selection, or there are
fewer children selected than the integer passed in, the return
value will be null.
Note that the index represents the i-th selected child, which
is different from the i-th child.
Returns the number of Accessible children currently selected.
If no children are selected, the return value will be 0.
Determines if the current child of this object is selected.
Removes the specified child of the object from the object's
selection. If the specified item isn't currently selected, this
method has no effect.
Causes every child of the object to be selected
if the object supports multiple selections.