Flex SDK Wiki

class spark.accessibility.SpinnerAccImpl

This is the accessibility implementation class for spark.components.Spinner. When a Spark Spinner is created, its accessibilityImplementation property is set to an instance of this class. The Flash Player then uses this class to allow MSAA clients such as screen readers to see and manipulate the Spinner. See the mx.accessibility.AccImpl and flash.accessibility.AccessibilityImplementation classes for background information about accessibility implementation classes and MSAA.

Children

A Spinner has 2 MSAA children:

1. Increment button
2. Decrement button

Role

The MSAA Role of a Spinner is ROLE_SYSTEM_SPINBUTTON.

The Role of each child button is ROLE_SYSTEM_PUSHBUTTON.

Name

The MSAA Name of a Spinner is, by default, an empty string. When wrapped in a FormItem element, the Name is the FormItem's label. To override this behavior, set the Spinner's accessibilityName property.

The Name of each child button is:

1. "More"
2. "Less"

When the Name of the Spinner or one of its child button changes, a Spinner dispatches the MSAA event EVENT_OBJECT_NAMECHANGE with the proper childID for the button or 0 for itself.

Description

The MSAA Description of a Spinner is, by default, an empty string, but you can set the Spinner's accessibilityDescription property.

The Description of each child button is the empty string.

State

The MSAA State of a Spinner is a combination of:

• STATE_SYSTEM_UNAVAILABLE (when enabled is false)
• STATE_SYSTEM_FOCUSABLE (when enabled is true)
• STATE_SYSTEM_FOCUSED (when enabled is true and the Spinner has focus)

The State of each child button is <tbd>.</tbd>

When the State of the Spinner or one of its child buttons changes, a Spinner dispatches the MSAA event EVENT_OBJECT_STATECHANGE with the proper childID for the button or 0 for itself.

Value

The MSAA Value of a Spinner is the value currently held by the Spinner.

The child buttons do not have MSAA values.

When the Value of the Spinner changes, a Spinner dispatches the MSAA event EVENT_OBJECT_VALUECHANGE.

Location

The MSAA Location of a Spinner, or one of its child buttons, is its bounding rectangle.

Default Action

A Spinner does not have an MSAA DefaultAction.

The DefaultAction of each child button is "Press".

Performing the default action of one of the child buttons will increment or decrement the value.

Focus

The Spinner can be focused, in which case an EVENT_OBJECT_FOCUS event is fired.
Selection

Selection

The Spinner does not support MSAA selection