public class Accessible extends Object
getAccessible
, and then add an accessible listener
to override simple items like the name and help string, or they
can add an accessible control listener to override complex items.
As a rule of thumb, an application would only want to use the
accessible control listener to implement accessibility for a
custom control.Control.getAccessible()
,
AccessibleListener
,
AccessibleEvent
,
AccessibleControlListener
,
AccessibleControlEvent
Modifier and Type | Method and Description |
---|---|
void |
addAccessibleControlListener(AccessibleControlListener listener)
Adds the listener to the collection of listeners who will
be notified when an accessible client asks for custom control
specific information.
|
void |
addAccessibleListener(AccessibleListener listener)
Adds the listener to the collection of listeners who will
be notified when an accessible client asks for certain strings,
such as name, description, help, or keyboard shortcut.
|
void |
addAccessibleTextListener(AccessibleTextListener listener)
Adds the listener to the collection of listeners who will
be notified when an accessible client asks for custom text control
specific information.
|
Control |
getControl()
Returns the control for this Accessible object.
|
void |
internal_dispose_Accessible()
Invokes platform specific functionality to dispose an accessible object.
|
static Accessible |
internal_new_Accessible(Control control)
Invokes platform specific functionality to allocate a new accessible object.
|
int |
internal_WM_GETOBJECT(int wParam,
int lParam)
Invokes platform specific functionality to handle a window message.
|
void |
removeAccessibleControlListener(AccessibleControlListener listener)
Removes the listener from the collection of listeners who will
be notified when an accessible client asks for custom control
specific information.
|
void |
removeAccessibleListener(AccessibleListener listener)
Removes the listener from the collection of listeners who will
be notified when an accessible client asks for certain strings,
such as name, description, help, or keyboard shortcut.
|
void |
removeAccessibleTextListener(AccessibleTextListener listener)
Removes the listener from the collection of listeners who will
be notified when an accessible client asks for custom text control
specific information.
|
void |
selectionChanged()
Sends a message to accessible clients that the child selection
within a custom container control has changed.
|
void |
setFocus(int childID)
Sends a message to accessible clients indicating that the focus
has changed within a custom control.
|
void |
textCaretMoved(int index)
Sends a message to accessible clients that the text
caret has moved within a custom control.
|
void |
textChanged(int type,
int startIndex,
int length)
Sends a message to accessible clients that the text
within a custom control has changed.
|
void |
textSelectionChanged()
Sends a message to accessible clients that the text
selection has changed within a custom control.
|
public static Accessible internal_new_Accessible(Control control)
IMPORTANT: This method is not part of the public
API for Accessible
. It is marked public only so that it
can be shared within the packages provided by SWT. It is not
available on all platforms, and should never be called from
application code.
control
- the control to get the accessible object forpublic void addAccessibleListener(AccessibleListener listener)
AccessibleListener
interface.listener
- the listener that should be notified when the receiver
is asked for a name, description, help, or keyboard shortcut stringIllegalArgumentException
- SWTException
- AccessibleListener
,
removeAccessibleListener(org.eclipse.swt.accessibility.AccessibleListener)
public void addAccessibleControlListener(AccessibleControlListener listener)
AccessibleControlListener
interface.listener
- the listener that should be notified when the receiver
is asked for custom control specific informationIllegalArgumentException
- SWTException
- AccessibleControlListener
,
removeAccessibleControlListener(org.eclipse.swt.accessibility.AccessibleControlListener)
public void addAccessibleTextListener(AccessibleTextListener listener)
AccessibleTextListener
interface.listener
- the listener that should be notified when the receiver
is asked for custom text control specific informationIllegalArgumentException
- SWTException
- AccessibleTextListener
,
removeAccessibleTextListener(org.eclipse.swt.accessibility.AccessibleTextListener)
public Control getControl()
public void internal_dispose_Accessible()
IMPORTANT: This method is not part of the public
API for Accessible
. It is marked public only so that it
can be shared within the packages provided by SWT. It is not
available on all platforms, and should never be called from
application code.
public int internal_WM_GETOBJECT(int wParam, int lParam)
IMPORTANT: This method is not part of the public
API for Accessible
. It is marked public only so that it
can be shared within the packages provided by SWT. It is not
available on all platforms, and should never be called from
application code.
public void removeAccessibleListener(AccessibleListener listener)
listener
- the listener that should no longer be notified when the receiver
is asked for a name, description, help, or keyboard shortcut stringIllegalArgumentException
- SWTException
- AccessibleListener
,
addAccessibleListener(org.eclipse.swt.accessibility.AccessibleListener)
public void removeAccessibleControlListener(AccessibleControlListener listener)
listener
- the listener that should no longer be notified when the receiver
is asked for custom control specific informationIllegalArgumentException
- SWTException
- AccessibleControlListener
,
addAccessibleControlListener(org.eclipse.swt.accessibility.AccessibleControlListener)
public void removeAccessibleTextListener(AccessibleTextListener listener)
listener
- the listener that should no longer be notified when the receiver
is asked for custom text control specific informationIllegalArgumentException
- SWTException
- AccessibleTextListener
,
addAccessibleTextListener(org.eclipse.swt.accessibility.AccessibleTextListener)
public void selectionChanged()
SWTException
- public void setFocus(int childID)
childID
- an identifier specifying a child of the controlSWTException
- public void textCaretMoved(int index)
index
- the new caret index within the controlSWTException
- public void textChanged(int type, int startIndex, int length)
type
- the type of change, one of ACC.NOTIFY_TEXT_INSERT
or ACC.NOTIFY_TEXT_DELETE
startIndex
- the text index within the control where the insertion or deletion beginslength
- the non-negative length in characters of the insertion or deletionSWTException
- ACC.TEXT_INSERT
,
ACC.TEXT_DELETE
public void textSelectionChanged()
SWTException
- Guidelines for using Eclipse APIs. Copyright (c) IBM Corp. and others 2000, 2006. All rights reserved.