# Uses of Interface
org.eclipse.ui.INullSelectionListener

Packages that use INullSelectionListener
Package
Description
org.eclipse.ui.internal

## Uses of INullSelectionListener in org.eclipse.ui.internal

Classes in org.eclipse.ui.internal that implement INullSelectionListener
Modifier and Type
Class
Description
`final class`
`EditorPluginAction`
Extends PartPluginAction for usage in editor parts.
`class`
`ObjectPluginAction`
An object action extension in a popup menu.
`class`
`PartPluginAction`
This class adds to the PluginAction support by setting itself up for work within a WorkbenchPart.
`class`
`PartSelectionListener`
An intermediate selection listener that filters selection change events based on one or more predicates and forwards it to the functional selection listener.
`class`
`PluginAction`
A PluginAction is a proxy for an action extension.
`final class`
`ViewPluginAction`
This class extends regular plugin action with the additional requirement that the delegate has to implement interface IViewActionDeelgate.
`class`
`WWinPluginAction`
This class extends regular plugin action with the additional requirement that the delegate has to implement interface `IWorkbenchWindowActionDelegate`.
`class`
`WWinPluginPulldown`
A workbench window pulldown action.