EDIT

	public static String ID = "eu.etaxonomy.taxeditor.view.detail"; //$NON-NLS-1$

	private DetailsViewer viewer;

	private CdmBase lastObject;

	private Object lastPart;

	    try{

	        boolean isSelectionProvidingPartStillActive = false;

	        if(selectionProvidingPart!=null){

	            Collection<MPart> parts = partService.getParts();

	            for (MPart mPart : parts) {

	                Object object = mPart.getObject();

	@Override

	public void showEmptyPage() {

	    viewer.setSelection(null);

	    super.showEmptyPage();

	}

    }

    @Override

    public void showViewer(Object part, IStructuredSelection selection){

    	this.part = part;

        Object element = selection.getFirstElement();

//        if (part == lastPart && element == lastObject ){

//        	getViewer().setInput(element);

//        	return;