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java.lang.Objectorg.eclipse.swt.accessibility.AccessibleAdapter
This adapter class provides default implementations for the methods described
by the AccessibleListener
interface.
Classes that wish to deal with AccessibleEvent
s can extend this
class and override only the methods that they are interested in.
Note: Accessibility clients use child identifiers to specify whether they want information about a control or one of its children. Child identifiers are increasing integers beginning with 0. The identifier CHILDID_SELF represents the control itself.
AccessibleListener
,
AccessibleEvent
,
Sample code and further
informationConstructor Summary | |
AccessibleAdapter()
|
Method Summary | |
void |
getDescription(AccessibleEvent e)
Sent when an accessibility client requests a description of the control, or a description of a child of the control. |
void |
getHelp(AccessibleEvent e)
Sent when an accessibility client requests the help string of the control, or the help string of a child of the control. |
void |
getKeyboardShortcut(AccessibleEvent e)
Sent when an accessibility client requests the keyboard shortcut of the control, or the keyboard shortcut of a child of the control. |
void |
getName(AccessibleEvent e)
Sent when an accessibility client requests the name of the control, or the name of a child of the control. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public AccessibleAdapter()
Method Detail |
public void getName(AccessibleEvent e)
Return the name of the control or specified child in the
result
field of the event object. Returning an empty string
tells the client that the control or child does not have a name, and
returning null tells the client to use the platform name.
getName
in interface AccessibleListener
e
- an event object containing the following fields:
public void getHelp(AccessibleEvent e)
The information in this property should be similar to the help provided by toolTipText. It describes what the control or child does or how to use it, as opposed to getDescription, which describes appearance.
Return the help string of the control or specified child in the
result
field of the event object. Returning an empty string
tells the client that the control or child does not have a help string, and
returning null tells the client to use the platform help string.
getHelp
in interface AccessibleListener
e
- an event object containing the following fields:
public void getKeyboardShortcut(AccessibleEvent e)
A keyboard shortcut can either be a mnemonic, or an accelerator. As a general rule, if the control or child can receive keyboard focus, then you should expose its mnemonic, and if it cannot receive keyboard focus, then you should expose its accelerator.
Return the keyboard shortcut string of the control or specified child in
the result
field of the event object. Returning an empty
string tells the client that the control or child does not have a keyboard
shortcut string, and returning null tells the client to use the platform
keyboard shortcut string.
getKeyboardShortcut
in interface AccessibleListener
e
- an event object containing the following fields:
public void getDescription(AccessibleEvent e)
This is a textual description of the control or child's visual appearance, which is typically only necessary if it cannot be determined from other properties such as role.
Return the description of the control or specified child in the
result
field of the event object. Returning an empty string
tells the client that the control or child does not have a description, and
returning null tells the client to use the platform description.
getDescription
in interface AccessibleListener
e
- an event object containing the following fields:
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