java.awt

## Class List.AccessibleAWTList

- java.lang.Object
- - javax.accessibility.AccessibleContext
  - - java.awt.Component.AccessibleAWTComponent
    - - java.awt.List.AccessibleAWTList

- All Implemented Interfaces:
    ActionListener, ItemListener, Serializable, EventListener, AccessibleComponent, AccessibleSelection
  Enclosing class:
    List

      protected class List.AccessibleAWTList
      extends Component.AccessibleAWTComponent
      implements AccessibleSelection, ItemListener, ActionListener

  This class implements accessibility support for the `List` class. It provides an implementation of the Java Accessibility API appropriate to list user-interface elements.
  Since:
    1.3
  See Also:
    Serialized Form

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected class` | `List.AccessibleAWTList.AccessibleAWTListChild` This class implements accessibility support for List children.

    - ### Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent

      `Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`

  - ### Field Summary

    - ### Fields inherited from class java.awt.Component.AccessibleAWTComponent

      `accessibleAWTComponentHandler, accessibleAWTFocusHandler`

    - ### Fields inherited from class javax.accessibility.AccessibleContext

      `ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AccessibleAWTList()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `actionPerformed(ActionEvent event)` Invoked when an action occurs.
    `void` | `addAccessibleSelection(int i)` Adds the specified selected item in the object to the object's selection.
    `void` | `clearAccessibleSelection()` Clears the selection in the object, so that nothing in the object is selected.
    `Accessible` | `getAccessibleAt(Point p)` Returns the Accessible child contained at the local coordinate Point, if one exists.
    `Accessible` | `getAccessibleChild(int i)` Return the nth Accessible child of the object.
    `int` | `getAccessibleChildrenCount()` Returns the number of accessible children in the object.
    `AccessibleRole` | `getAccessibleRole()` Get the role of this object.
    `AccessibleSelection` | `getAccessibleSelection()` Get the AccessibleSelection associated with this object.
    `Accessible` | `getAccessibleSelection(int i)` Returns an Accessible representing the specified selected item in the object.
    `int` | `getAccessibleSelectionCount()` Returns the number of items currently selected.
    `AccessibleStateSet` | `getAccessibleStateSet()` Get the state set of this object.
    `boolean` | `isAccessibleChildSelected(int i)` Returns true if the current child of this object is selected.
    `void` | `itemStateChanged(ItemEvent event)` Invoked when an item has been selected or deselected by the user.
    `void` | `removeAccessibleSelection(int i)` Removes the specified selected item in the object from the object's selection.
    `void` | `selectAllAccessibleSelection()` Causes every selected item in the object to be selected if the object supports multiple selections.

    - ### Methods inherited from class java.awt.Component.AccessibleAWTComponent

      `addFocusListener, addPropertyChangeListener, contains, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleName, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, removePropertyChangeListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible`

    - ### Methods inherited from class javax.accessibility.AccessibleContext

      `firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### AccessibleAWTList

          public AccessibleAWTList()

  - ### Method Detail

    - #### actionPerformed

          public void actionPerformed(ActionEvent event)

      Description copied from interface: `ActionListener`
      Invoked when an action occurs.
      Specified by:
        `actionPerformed` in interface `ActionListener`

    - #### itemStateChanged

          public void itemStateChanged(ItemEvent event)

      Description copied from interface: `ItemListener`
      Invoked when an item has been selected or deselected by the user. The code written for this method performs the operations that need to occur when an item is selected (or deselected).
      Specified by:
        `itemStateChanged` in interface `ItemListener`

    - #### getAccessibleStateSet

          public AccessibleStateSet getAccessibleStateSet()

      Get the state set of this object.
      Overrides:
        `getAccessibleStateSet` in class `Component.AccessibleAWTComponent`
      Returns:
        an instance of AccessibleState containing the current state of the object
      See Also:
        `AccessibleState`

    - #### getAccessibleRole

          public AccessibleRole getAccessibleRole()

      Get the role of this object.
      Overrides:
        `getAccessibleRole` in class `Component.AccessibleAWTComponent`
      Returns:
        an instance of AccessibleRole describing the role of the object
      See Also:
        `AccessibleRole`

    - #### getAccessibleAt

          public Accessible getAccessibleAt(Point p)

      Returns the Accessible child contained at the local coordinate Point, if one exists.
      Specified by:
        `getAccessibleAt` in interface `AccessibleComponent`
      Overrides:
        `getAccessibleAt` in class `Component.AccessibleAWTComponent`
      Parameters:
        `p` - the point defining the top-left corner of the `Accessible`, given in the coordinate space of the object's parent
      Returns:
        the Accessible at the specified location, if it exists

    - #### getAccessibleChildrenCount

          public int getAccessibleChildrenCount()

      Returns the number of accessible children in the object. If all of the children of this object implement Accessible, than this method should return the number of children of this object.
      Overrides:
        `getAccessibleChildrenCount` in class `Component.AccessibleAWTComponent`
      Returns:
        the number of accessible children in the object.

    - #### getAccessibleChild

          public Accessible getAccessibleChild(int i)

      Return the nth Accessible child of the object.
      Overrides:
        `getAccessibleChild` in class `Component.AccessibleAWTComponent`
      Parameters:
        `i` - zero-based index of child
      Returns:
        the nth Accessible child of the object
      See Also:
        `AccessibleContext.getAccessibleChildrenCount()`

    - #### getAccessibleSelection

          public AccessibleSelection getAccessibleSelection()

      Get the AccessibleSelection associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleSelection interface on behalf of itself.
      Overrides:
        `getAccessibleSelection` in class `AccessibleContext`
      Returns:
        this object
      See Also:
        `AccessibleSelection`

    - #### getAccessibleSelectionCount

          public int getAccessibleSelectionCount()

      Returns the number of items currently selected. If no items are selected, the return value will be 0.
      Specified by:
        `getAccessibleSelectionCount` in interface `AccessibleSelection`
      Returns:
        the number of items currently selected.

    - #### getAccessibleSelection

          public Accessible getAccessibleSelection(int i)

      Returns an Accessible representing the specified selected item in the object. If there isn't a selection, or there are fewer items selected than the integer passed in, the return value will be null.
      Specified by:
        `getAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selected items
      Returns:
        an Accessible containing the selected item
      See Also:
        `AccessibleSelection.getAccessibleSelectionCount()`

    - #### isAccessibleChildSelected

          public boolean isAccessibleChildSelected(int i)

      Returns true if the current child of this object is selected.
      Specified by:
        `isAccessibleChildSelected` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of the child in this Accessible object.
      Returns:
        true if the current child of this object is selected; else false.
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### addAccessibleSelection

          public void addAccessibleSelection(int i)

      Adds the specified selected item in the object to the object's selection. If the object supports multiple selections, the specified item is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified item is already selected, this method has no effect.
      Specified by:
        `addAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selectable items
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### removeAccessibleSelection

          public void removeAccessibleSelection(int i)

      Removes the specified selected item in the object from the object's selection. If the specified item isn't currently selected, this method has no effect.
      Specified by:
        `removeAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selectable items
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### clearAccessibleSelection

          public void clearAccessibleSelection()

      Clears the selection in the object, so that nothing in the object is selected.
      Specified by:
        `clearAccessibleSelection` in interface `AccessibleSelection`

    - #### selectAllAccessibleSelection

          public void selectAllAccessibleSelection()

      Causes every selected item in the object to be selected if the object supports multiple selections.
      Specified by:
        `selectAllAccessibleSelection` in interface `AccessibleSelection`

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