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 ITextPresentationListeneris 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 Details

    • moveFocusToWidgetToken

      boolean moveFocusToWidgetToken()
      Instructs the receiver to request the IWidgetTokenKeeper currently holding the widget token to take the keyboard focus.
      Returns:
      true if there was any IWidgetTokenKeeper that was asked to take the focus, false otherwise

    • addTextPresentationListener

      void addTextPresentationListener(ITextPresentationListener listener)
      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

      void removeTextPresentationListener(ITextPresentationListener listener)
      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