Class SS_ContextActionSupport

java.lang.Object

org.jjazz.ss_editor.api.SS_ContextActionSupport

public class SS_ContextActionSupport
extends Object

A helper class to write SS_Editor context aware actions.

Listen to changes in the lookup context:
- RhyhmPart or SongPartParameter presence changes are notified to the registered SS_ContextActionListeners.

SS_ContextActionSupport instances are cached per lookup context. Only weak listeners are used: declaratively registered actions might be transient actions (e.g. ContextAwareAction instances).

Method Summary

Modifier and Type	Method	Description
void	addWeakSelectionListener(SS_ContextActionListener listener)
final org.openide.util.Lookup	getContext()
static SS_ContextActionSupport	getInstance(org.openide.util.Lookup context)	Get the instance associated to the specified context.
final SS_Selection	getSelection()
void	removeWeakListener(SS_ContextActionListener listener)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getInstance

public static SS_ContextActionSupport getInstance(org.openide.util.Lookup context)

Get the instance associated to the specified context.

Parameters:

context -

Returns:

getContext

public final org.openide.util.Lookup getContext()

Returns:

the Lookup context

getSelection

public final SS_Selection getSelection()

Returns:

The latest selection.

addWeakSelectionListener

public void addWeakSelectionListener(SS_ContextActionListener listener)

removeWeakListener

public void removeWeakListener(SS_ContextActionListener listener)