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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.SashForm;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.ui.ISelectionListener;
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import org.eclipse.ui.ISelectionService;
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import org.eclipse.ui.IWorkbenchPart;
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import org.eclipse.ui.part.PageBook;
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import org.eclipse.ui.part.ViewPart;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.model.IDirtyMarkableSelectionProvider;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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/**
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* <p>Abstract AbstractCdmViewPart class.</p>
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*
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* @author n.hoffmann
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* @created Jun 15, 2010
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* @version 1.0
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*/
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public abstract class AbstractCdmViewPart extends ViewPart implements ISelectionListener, IPostOperationEnabled, IConversationEnabled, IDirtyMarkableSelectionProvider{
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protected ISelectionService selectionService;
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public static IStructuredSelection EMPTY_SELECTION = new StructuredSelection();
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protected IWorkbenchPart part;
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private PageBook pageBook;
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private Label emptySelectionLabel;
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private Composite viewerComposite;
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/** {@inheritDoc} */
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@Override
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public void createPartControl(Composite parent) {
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selectionService = getSite().getWorkbenchWindow().getSelectionService();
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selectionService.addSelectionListener(this);
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pageBook = new PageBook(parent, SWT.NULL);
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createViewerComposite(pageBook);
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createViewer(viewerComposite);
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// Page 2: Nothing selected
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emptySelectionLabel = new Label(pageBook, SWT.TOP + SWT.LEFT + SWT.WRAP);
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setInitialSelection();
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}
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/**
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*
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*/
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private void setInitialSelection() {
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selectionChanged(StoreUtil.getActivePart(), getInitialSelection());
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}
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/**
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* <p>getInitialSelection</p>
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*
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* @return a {@link org.eclipse.jface.viewers.ISelection} object.
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*/
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protected ISelection getInitialSelection() {
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return selectionService.getSelection();
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}
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private void createViewerComposite(Composite parent) {
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viewerComposite = new SashForm(parent, SWT.HORIZONTAL);
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}
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/**
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* <p>showEmptyPage</p>
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*/
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public void showEmptyPage(){
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pageBook.showPage(emptySelectionLabel);
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}
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/**
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* <p>showViewer</p>
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*
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* @param part a {@link org.eclipse.ui.IWorkbenchPart} object.
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* @param selection a {@link org.eclipse.jface.viewers.ISelection} object.
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*/
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public void showViewer(IWorkbenchPart part, IStructuredSelection selection){
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this.part = part;
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Object element = selection.getFirstElement();
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getViewer().setInput(element);
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showViewer();
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}
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/**
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* <p>getViewer</p>
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*
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* @return a {@link org.eclipse.jface.viewers.Viewer} object.
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*/
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public abstract Viewer getViewer();
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/**
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* <p>showViewer</p>
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*/
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public void showViewer(){
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pageBook.showPage(viewerComposite);
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}
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/** {@inheritDoc} */
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@Override
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public void setFocus() {
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if(getConversationHolder() != null){
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getConversationHolder().bind();
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}
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getViewer().getControl().setFocus();
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}
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/**
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* <p>createViewer</p>
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*
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* @param parent a {@link org.eclipse.swt.widgets.Composite} object.
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*/
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public abstract void createViewer(Composite parent);
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/** {@inheritDoc} */
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public boolean postOperation(CdmBase objectAffectedByOperation) {
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changed(objectAffectedByOperation);
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return true;
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}
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/** {@inheritDoc} */
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public abstract void changed(Object object);
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/**
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* <p>getConversationHolder</p>
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*
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* @return a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder} object.
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*/
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public ConversationHolder getConversationHolder() {
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if(part != null)
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return ((IConversationEnabled) part).getConversationHolder();
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return null;
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}
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/** {@inheritDoc} */
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public void update(CdmDataChangeMap changeEvents) {
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}
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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selectionService.removeSelectionListener(this);
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super.dispose();
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}
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}
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