private static void initializeHighlightRange(IEditorPart editorPart) {
	if (editorPart instanceof ITextEditor) {
		IAction toggleAction= editorPart.getEditorSite().getActionBars().getGlobalActionHandler(ITextEditorActionDefinitionIds.TOGGLE_SHOW_SELECTED_ELEMENT_ONLY);
		boolean enable= toggleAction != null;
		if (enable && editorPart instanceof JavaEditor)
			enable= JavaPlugin.getDefault().getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_SHOW_SEGMENTS);
		else
			enable= enable && toggleAction.isEnabled() && toggleAction.isChecked();
		if (enable) {
			if (toggleAction instanceof TextEditorAction) {
				// Reset the action
				((TextEditorAction)toggleAction).setEditor(null);
				// Restore the action
				((TextEditorAction)toggleAction).setEditor((ITextEditor)editorPart);
			} else {
				// Uncheck
				toggleAction.run();
				// Check
				toggleAction.run();
			}
		}
	}
}
 

@Override
public void contributeActions(XtextEditor xtextEditor) {
	foldingActionGroup = new FoldingActionGroup(xtextEditor, xtextEditor.getInternalSourceViewer()) {
		@Override
		protected TextEditorAction createToggleFoldingAction(ITextEditor editor) {
			TextEditorAction toggle = new ResourceActionExtension(FoldingMessages.getResourceBundle(),
					"Projection.Toggle.", editor, ProjectionViewer.TOGGLE);
			toggle.setChecked(true);
			toggle.setActionDefinitionId(IFoldingCommandIds.FOLDING_TOGGLE);
			return toggle;
		}
	};
}
 

/**
 * replace default cut/copy/paste actions with a version that provided by the factory, if one is injected
 */
protected void createClipboardActions() {
	IClipboardActionFactory actionsFactory = getClipboardActionFactory();
	if (actionsFactory != null) {
		ResourceBundle bundle = XbaseEditorMessages.getBundleForConstructedKeys();
		TextEditorAction action = actionsFactory.create(bundle, "Editor.Cut.", this, ITextOperationTarget.CUT); //$NON-NLS-1$
		setAction(ITextEditorActionConstants.CUT, action);
		action = actionsFactory.create(bundle, "Editor.Copy.", this, ITextOperationTarget.COPY); //$NON-NLS-1$
		setAction(ITextEditorActionConstants.COPY, action);
		action = actionsFactory.create(bundle, "Editor.Paste.", this, ITextOperationTarget.PASTE); //$NON-NLS-1$
		setAction(ITextEditorActionConstants.PASTE, action);
	}
}
 

private void restore(ITextEditor textEditor, String actionId) {
    Boolean b = fMemento.get(actionId);
    if (b != null && b) {
        Control control = textEditor.getAdapter(Control.class);
        if (control != null && !control.isDisposed()) {
            // Do nothing if already disposed.
            IAction action = textEditor.getAction(actionId);
            if (action instanceof TextEditorAction) {
                TextEditorAction textEditorAction = (TextEditorAction) action;
                textEditorAction.setEditor(textEditor);
                textEditorAction.update();
            }
        }
    }
}
 

private void disable(ITextEditor textEditor, String actionId) {
    IAction action = textEditor.getAction(actionId);
    if (action != null && action instanceof TextEditorAction) {
        TextEditorAction textEditorAction = (TextEditorAction) action;
        fMemento.put(actionId, true);
        textEditorAction.setEditor(null);
        textEditorAction.update();
    }
}
 

/**
 * @since 2.8
 */
protected TextEditorAction createToggleFoldingAction(ITextEditor editor) {
	return new TextOperationAction(FoldingMessages.getResourceBundle(), "Projection.Toggle.", editor,
			ProjectionViewer.TOGGLE, true);
}
 

@Override
public TextEditorAction create(ResourceBundle bundle, String prefix, ITextEditor editor, int operationCode) {
	ImportsAwareClipboardAction action = new ImportsAwareClipboardAction(bundle, prefix, editor, operationCode);
	injector.injectMembers(action);
	return action;
}
 

public TextEditorAction create(ResourceBundle bundle, String prefix, ITextEditor editor, int operationCode);