Java™ Platform
Standard Ed. 6

javax.swing
Class JComponent.AccessibleJComponent

java.lang.Object
  extended by javax.accessibility.AccessibleContext
      extended by java.awt.Component.AccessibleAWTComponent
          extended by java.awt.Container.AccessibleAWTContainer
              extended by javax.swing.JComponent.AccessibleJComponent
All Implemented Interfaces:
Serializable, AccessibleComponent, AccessibleExtendedComponent
Direct Known Subclasses:
AbstractButton.AccessibleAbstractButton, JColorChooser.AccessibleJColorChooser, JComboBox.AccessibleJComboBox, JDesktopPane.AccessibleJDesktopPane, JFileChooser.AccessibleJFileChooser, JInternalFrame.AccessibleJInternalFrame, JInternalFrame.JDesktopIcon.AccessibleJDesktopIcon, JLabel.AccessibleJLabel, JLayeredPane.AccessibleJLayeredPane, JList.AccessibleJList, JMenuBar.AccessibleJMenuBar, JOptionPane.AccessibleJOptionPane, JPanel.AccessibleJPanel, JPopupMenu.AccessibleJPopupMenu, JProgressBar.AccessibleJProgressBar, JRootPane.AccessibleJRootPane, JScrollBar.AccessibleJScrollBar, JScrollPane.AccessibleJScrollPane, JSeparator.AccessibleJSeparator, JSlider.AccessibleJSlider, JSpinner.AccessibleJSpinner, JSplitPane.AccessibleJSplitPane, JTabbedPane.AccessibleJTabbedPane, JTable.AccessibleJTable, JTableHeader.AccessibleJTableHeader, JTextComponent.AccessibleJTextComponent, JToolBar.AccessibleJToolBar, JToolTip.AccessibleJToolTip, JTree.AccessibleJTree, JViewport.AccessibleJViewport
Enclosing class:
JComponent

public abstract class JComponent.AccessibleJComponent
extends Container.AccessibleAWTContainer
implements AccessibleExtendedComponent

Inner class of JComponent used to provide default support for accessibility. This class is not meant to be used directly by application developers, but is instead meant only to be subclassed by component developers.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.


Nested Class Summary
protected  class JComponent.AccessibleJComponent.AccessibleContainerHandler
          Fire PropertyChange listener, if one is registered, when children added/removed.
protected  class JComponent.AccessibleJComponent.AccessibleFocusHandler
          Fire PropertyChange listener, if one is registered, when focus events happen
 
Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent
Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
 
Field Summary
protected  ContainerListener accessibleContainerHandler
           
protected  FocusListener accessibleFocusHandler
           
 
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
protected JComponent.AccessibleJComponent()
          Though the class is abstract, this should be called by all sub-classes.
 
Method Summary
 void addPropertyChangeListener(PropertyChangeListener listener)
          Adds a PropertyChangeListener to the listener list.
 Accessible getAccessibleChild(int i)
          Returns the nth Accessible child of the object.
 int getAccessibleChildrenCount()
          Returns the number of accessible children in the object.
 String getAccessibleDescription()
          Gets the accessible description of this object.
 AccessibleKeyBinding getAccessibleKeyBinding()
          Returns key bindings associated with this object
 String getAccessibleName()
          Gets the accessible name of this object.
 AccessibleRole getAccessibleRole()
          Gets the role of this object.
 AccessibleStateSet getAccessibleStateSet()
          Gets the state of this object.
protected  String getBorderTitle(Border b)
          Recursively search through the border hierarchy (if it exists) for a TitledBorder with a non-null title.
 String getTitledBorderText()
          Returns the titled border text
 String getToolTipText()
          Returns the tool tip text
 void removePropertyChangeListener(PropertyChangeListener listener)
          Removes a PropertyChangeListener from the listener list.
 
Methods inherited from class java.awt.Container.AccessibleAWTContainer
getAccessibleAt
 
Methods inherited from class java.awt.Component.AccessibleAWTComponent
addFocusListener, contains, getAccessibleComponent, getAccessibleIndexInParent, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 
Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface javax.accessibility.AccessibleComponent
addFocusListener, contains, getAccessibleAt, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 

Field Detail

accessibleContainerHandler

protected ContainerListener accessibleContainerHandler

accessibleFocusHandler

protected FocusListener accessibleFocusHandler
Constructor Detail

JComponent.AccessibleJComponent

protected JComponent.AccessibleJComponent()
Though the class is abstract, this should be called by all sub-classes.

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)
Adds a PropertyChangeListener to the listener list.

Overrides:
addPropertyChangeListener in class Container.AccessibleAWTContainer
Parameters:
listener - the PropertyChangeListener to be added
See Also:
AccessibleContext.ACCESSIBLE_NAME_PROPERTY, AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY, AccessibleContext.ACCESSIBLE_STATE_PROPERTY, AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY, AccessibleContext.ACCESSIBLE_TEXT_PROPERTY, AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)
Removes a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Overrides:
removePropertyChangeListener in class Component.AccessibleAWTComponent
Parameters:
listener - the PropertyChangeListener to be removed

getBorderTitle

protected String getBorderTitle(Border b)
Recursively search through the border hierarchy (if it exists) for a TitledBorder with a non-null title. This does a depth first search on first the inside borders then the outside borders. The assumption is that titles make really pretty inside borders but not very pretty outside borders in compound border situations. It's rather arbitrary, but hopefully decent UI programmers will not create multiple titled borders for the same component.


getAccessibleName

public String getAccessibleName()
Gets the accessible name of this object. This should almost never return java.awt.Component.getName(), as that generally isn't a localized name, and doesn't have meaning for the user. If the object is fundamentally a text object (such as a menu item), the accessible name should be the text of the object (for example, "save"). If the object has a tooltip, the tooltip text may also be an appropriate String to return.

Overrides:
getAccessibleName in class Component.AccessibleAWTComponent
Returns:
the localized name of the object -- can be null if this object does not have a name
See Also:
AccessibleContext.setAccessibleName(java.lang.String)

getAccessibleDescription

public String getAccessibleDescription()
Gets the accessible description of this object. This should be a concise, localized description of what this object is - what is its meaning to the user. If the object has a tooltip, the tooltip text may be an appropriate string to return, assuming it contains a concise description of the object (instead of just the name of the object - for example a "Save" icon on a toolbar that had "save" as the tooltip text shouldn't return the tooltip text as the description, but something like "Saves the current text document" instead).

Overrides:
getAccessibleDescription in class Component.AccessibleAWTComponent
Returns:
the localized description of the object -- can be null if this object does not have a description
See Also:
AccessibleContext.setAccessibleDescription(java.lang.String)

getAccessibleRole

public AccessibleRole getAccessibleRole()
Gets 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

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()
Gets the state of this object.

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

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 Container.AccessibleAWTContainer
Returns:
the number of accessible children in the object.

getAccessibleChild

public Accessible getAccessibleChild(int i)
Returns the nth Accessible child of the object.

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

getToolTipText

public String getToolTipText()
Returns the tool tip text

Specified by:
getToolTipText in interface AccessibleExtendedComponent
Returns:
the tool tip text, if supported, of the object; otherwise, null
Since:
1.4

getTitledBorderText

public String getTitledBorderText()
Returns the titled border text

Specified by:
getTitledBorderText in interface AccessibleExtendedComponent
Returns:
the titled border text, if supported, of the object; otherwise, null
Since:
1.4

getAccessibleKeyBinding

public AccessibleKeyBinding getAccessibleKeyBinding()
Returns key bindings associated with this object

Specified by:
getAccessibleKeyBinding in interface AccessibleExtendedComponent
Returns:
the key bindings, if supported, of the object; otherwise, null
Since:
1.4
See Also:
AccessibleKeyBinding

Java™ Platform
Standard Ed. 6

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

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