org.openide.awt

Interface DynamicMenuContent

All Known Implementing Classes:

Actions.MenuItem, Actions.SubMenu, JInlineMenu

public interface DynamicMenuContent

Dynamic result of a Presenter.Menu or Presenter.Popup. If the presenters return an instance of DynamicMenuContent, then the framework code will use it's methods to populate the menu and keep it uptodate.

Since:

org.openide.awt 6.5

Field Summary

Fields

Modifier and Type	Field and Description
static String	HIDE_WHEN_DISABLED Marker for actions which should be hidden rather than merely disabled.

Method Summary

Modifier and Type	Method and Description
JComponent[]	getMenuPresenters() Create main menu/popup menuitems.
JComponent[]	synchMenuPresenters(JComponent[] items) update main menu presenters.

Field Detail

HIDE_WHEN_DISABLED

static final String HIDE_WHEN_DISABLED

Marker for actions which should be hidden rather than merely disabled. Utilities.actionsToPopup(Action[],Lookup) will skip over any disabled actions which have this property set to true, unless they implement Presenter.Popup. This is a convenient way to make context menu items disappear when disabled; for more complex cases you still need to have a popup presenter with dynamic menu content.

Since:

org.openide.awt 7.22

See Also:

Constant Field Values

Method Detail

getMenuPresenters

JComponent[] getMenuPresenters()

Create main menu/popup menuitems. Null values will be later replaced by JSeparators. This method is called for popups and for menus. It's called each time a popup menu is contructed and just once for the main menu. Main menu updates happen through the synchMenuPresenters() method. If you want different behaviour for menu and popup, use a different implementation returned by Presenter.Popup and Presenter.Menu.

synchMenuPresenters

JComponent[] synchMenuPresenters(JComponent[] items)

update main menu presenters. This method is called only by the main menu processing.

Parameters:

items - the previously used menuitems returned by previous call to getMenuPresenters() or synchMenuPresenters()

Returns:

a new set of items to show in menu. Can be either an updated old set of instances or a completely new one.