- java.lang.Object
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- javax.accessibility.AccessibleContext
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- java.awt.Component.AccessibleAWTComponent
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- java.awt.List.AccessibleAWTList
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- 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 theList
class. It provides an implementation of the Java Accessibility API appropriate to list user-interface elements.- Since:
- 1.3
- See Also:
- Serialized Form
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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
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Field Summary
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Fields inherited from class java.awt.Component.AccessibleAWTComponent
accessibleAWTComponentHandler, accessibleAWTFocusHandler
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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
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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.-
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
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Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
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Method Detail
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actionPerformed
public void actionPerformed(ActionEvent event)
Description copied from interface:ActionListener
Invoked when an action occurs.- Specified by:
actionPerformed
in interfaceActionListener
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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 interfaceItemListener
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getAccessibleStateSet
public AccessibleStateSet getAccessibleStateSet()
Get the state set of this object.- Overrides:
getAccessibleStateSet
in classComponent.AccessibleAWTComponent
- Returns:
- an instance of AccessibleState containing the current state of the object
- See Also:
AccessibleState
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getAccessibleRole
public AccessibleRole getAccessibleRole()
Get the role of this object.- Overrides:
getAccessibleRole
in classComponent.AccessibleAWTComponent
- Returns:
- an instance of AccessibleRole describing the role of the object
- See Also:
AccessibleRole
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getAccessibleAt
public Accessible getAccessibleAt(Point p)
Returns the Accessible child contained at the local coordinate Point, if one exists.- Specified by:
getAccessibleAt
in interfaceAccessibleComponent
- Overrides:
getAccessibleAt
in classComponent.AccessibleAWTComponent
- Parameters:
p
- the point defining the top-left corner of theAccessible
, given in the coordinate space of the object's parent- Returns:
- the Accessible at the specified location, if it exists
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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 classComponent.AccessibleAWTComponent
- Returns:
- the number of accessible children in the object.
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getAccessibleChild
public Accessible getAccessibleChild(int i)
Return the nth Accessible child of the object.- Overrides:
getAccessibleChild
in classComponent.AccessibleAWTComponent
- Parameters:
i
- zero-based index of child- Returns:
- the nth Accessible child of the object
- See Also:
AccessibleContext.getAccessibleChildrenCount()
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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 classAccessibleContext
- Returns:
- this object
- See Also:
AccessibleSelection
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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 interfaceAccessibleSelection
- Returns:
- the number of items currently selected.
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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 interfaceAccessibleSelection
- Parameters:
i
- the zero-based index of selected items- Returns:
- an Accessible containing the selected item
- See Also:
AccessibleSelection.getAccessibleSelectionCount()
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isAccessibleChildSelected
public boolean isAccessibleChildSelected(int i)
Returns true if the current child of this object is selected.- Specified by:
isAccessibleChildSelected
in interfaceAccessibleSelection
- 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)
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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 interfaceAccessibleSelection
- Parameters:
i
- the zero-based index of selectable items- See Also:
AccessibleContext.getAccessibleChild(int)
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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 interfaceAccessibleSelection
- Parameters:
i
- the zero-based index of selectable items- See Also:
AccessibleContext.getAccessibleChild(int)
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clearAccessibleSelection
public void clearAccessibleSelection()
Clears the selection in the object, so that nothing in the object is selected.- Specified by:
clearAccessibleSelection
in interfaceAccessibleSelection
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selectAllAccessibleSelection
public void selectAllAccessibleSelection()
Causes every selected item in the object to be selected if the object supports multiple selections.- Specified by:
selectAllAccessibleSelection
in interfaceAccessibleSelection
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