| Interface to be implemented by an action whose behavior
is dependent on some context.
The action created by
ContextAwareAction.createContextAwareInstance is bound to the provided context:
Action.isEnabled ,
Action.actionPerformed , etc. may be specific to that context.
For example, the action representing a context menu item will usually implement
this interface. When the actual context menu is created, rather than making a
presenter for the generic action, the menu will contain a presenter for the
context-aware instance. The context will then be taken from the GUI
environment where the context menu was shown; for example it may be a
TopComponent's context,
often taken from an activated node selection. The context action might be
enabled only if a certain "cookie" is present in that selection. When invoked,
the action need not search for an object to act on, since it can use the context.
author: Jaroslav Tulach, Peter Zavadsky See Also: org.openide.util.Utilities.actionsToPopup since: 3.29 |