Package org.eclipse.jface.text
Interface ITextViewerExtension4
- All Known Implementing Classes:
ProjectionViewer
,SourceViewer
,TextConsoleViewer
,TextViewer
public interface ITextViewerExtension4
Extension interface for
ITextViewer
.
Introduces the concept of text presentation listeners and improves focus
handling among widget token keepers.
A ITextPresentationListener
is a listener that
is informed by the viewer that a text presentation is about to be applied.
During this callback the listener is allowed to modify the presentation. Text
presentation listeners are thus a mean to participate in the process of text
presentation creation.
- Since:
- 3.0
-
Method Summary
Modifier and TypeMethodDescriptionvoid
Adds the given text presentation listener to this text viewer.boolean
Instructs the receiver to request theIWidgetTokenKeeper
currently holding the widget token to take the keyboard focus.void
Removes the given text presentation listener from this text viewer.
-
Method Details
-
moveFocusToWidgetToken
boolean moveFocusToWidgetToken()Instructs the receiver to request theIWidgetTokenKeeper
currently holding the widget token to take the keyboard focus.- Returns:
true
if there was anyIWidgetTokenKeeper
that was asked to take the focus,false
otherwise
-
addTextPresentationListener
Adds the given text presentation listener to this text viewer. This call has no effect if the listener is already registered with this text viewer.- Parameters:
listener
- the text presentation listener
-
removeTextPresentationListener
Removes the given text presentation listener from this text viewer. This call has no effect if the listener is not registered with this text viewer.- Parameters:
listener
- the text presentation listener
-