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.

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- 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

List.AccessibleAWTList()

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Method Summary

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.

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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
  - List.AccessibleAWTList
```
public List.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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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-java/awt/List.AccessibleAWTList.html

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Referenties

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Inhoudsopgave Haut

Class List.AccessibleAWTList

Nested Class Summary

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

Field Summary

Fields inherited from class java.awt.Component.AccessibleAWTComponent

Fields inherited from class javax.accessibility.AccessibleContext

Constructor Summary

Method Summary

Methods inherited from class java.awt.Component.AccessibleAWTComponent

Methods inherited from class javax.accessibility.AccessibleContext

Methods inherited from class java.lang.Object

Constructor Detail

List.AccessibleAWTList

Method Detail

actionPerformed

itemStateChanged

getAccessibleStateSet

getAccessibleRole

getAccessibleAt

getAccessibleChildrenCount

getAccessibleChild

getAccessibleSelection

getAccessibleSelectionCount

getAccessibleSelection

isAccessibleChildSelected

addAccessibleSelection

removeAccessibleSelection

clearAccessibleSelection

selectAllAccessibleSelection

Referenties