List.AccessibleAWTList (Java 2 Platform SE 5.0) (original) (raw)

java.lang.Object extended by 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.

See Also:

Serialized Form

Nested Class Summary
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

Fields inherited from class javax.accessibility.AccessibleContext

Constructor Summary
List.AccessibleAWTList()

Method Summary
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 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](../../javax/accessibility/AccessibleContext.html#firePropertyChange%28java.lang.String, java.lang.Object, java.lang.Object%29), 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](../../java/lang/Object.html#wait%28long, int%29)

Constructor Detail

List.AccessibleAWTList

public List.AccessibleAWTList()

Method Detail

actionPerformed

public void actionPerformed(ActionEvent event)

Description copied from interface: [ActionListener](../../java/awt/event/ActionListener.html#actionPerformed%28java.awt.event.ActionEvent%29)

Invoked when an action occurs.

Specified by:

[actionPerformed](../../java/awt/event/ActionListener.html#actionPerformed%28java.awt.event.ActionEvent%29) in interface [ActionListener](../../java/awt/event/ActionListener.html "interface in java.awt.event")

itemStateChanged

public void itemStateChanged(ItemEvent event)

Description copied from interface: [ItemListener](../../java/awt/event/ItemListener.html#itemStateChanged%28java.awt.event.ItemEvent%29)

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](../../java/awt/event/ItemListener.html#itemStateChanged%28java.awt.event.ItemEvent%29) in interface [ItemListener](../../java/awt/event/ItemListener.html "interface in java.awt.event")

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Get the state set of this object.

Overrides:

[getAccessibleStateSet](../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleStateSet%28%29) in class [Component.AccessibleAWTComponent](../../java/awt/Component.AccessibleAWTComponent.html "class in java.awt")

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](../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleRole%28%29) in class [Component.AccessibleAWTComponent](../../java/awt/Component.AccessibleAWTComponent.html "class in java.awt")

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](../../javax/accessibility/AccessibleComponent.html#getAccessibleAt%28java.awt.Point%29) in interface [AccessibleComponent](../../javax/accessibility/AccessibleComponent.html "interface in javax.accessibility")

Overrides:

[getAccessibleAt](../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleAt%28java.awt.Point%29) in class [Component.AccessibleAWTComponent](../../java/awt/Component.AccessibleAWTComponent.html "class in java.awt")

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](../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleChildrenCount%28%29) in class [Component.AccessibleAWTComponent](../../java/awt/Component.AccessibleAWTComponent.html "class in java.awt")

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](../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleChild%28int%29) in class [Component.AccessibleAWTComponent](../../java/awt/Component.AccessibleAWTComponent.html "class in java.awt")

Parameters:

i - zero-based index of child

Returns:

the nth Accessible child of the object

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](../../javax/accessibility/AccessibleContext.html#getAccessibleSelection%28%29) in class [AccessibleContext](../../javax/accessibility/AccessibleContext.html "class in javax.accessibility")

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](../../javax/accessibility/AccessibleSelection.html#getAccessibleSelectionCount%28%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

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](../../javax/accessibility/AccessibleSelection.html#getAccessibleSelection%28int%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

Parameters:

i - the zero-based index of selected items

Returns:

an Accessible containing the selected item

isAccessibleChildSelected

public boolean isAccessibleChildSelected(int i)

Returns true if the current child of this object is selected.

Specified by:

[isAccessibleChildSelected](../../javax/accessibility/AccessibleSelection.html#isAccessibleChildSelected%28int%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

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.

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](../../javax/accessibility/AccessibleSelection.html#addAccessibleSelection%28int%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

Parameters:

i - the zero-based index of selectable items

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](../../javax/accessibility/AccessibleSelection.html#removeAccessibleSelection%28int%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

Parameters:

i - the zero-based index of selectable items

clearAccessibleSelection

public void clearAccessibleSelection()

Clears the selection in the object, so that nothing in the object is selected.

Specified by:

[clearAccessibleSelection](../../javax/accessibility/AccessibleSelection.html#clearAccessibleSelection%28%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

selectAllAccessibleSelection

public void selectAllAccessibleSelection()

Causes every selected item in the object to be selected if the object supports multiple selections.

Specified by:

[selectAllAccessibleSelection](../../javax/accessibility/AccessibleSelection.html#selectAllAccessibleSelection%28%29) in interface [AccessibleSelection](../../javax/accessibility/AccessibleSelection.html "interface in javax.accessibility")

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.