plugins/org.eclipse.bpel.ui/src/org/eclipse/bpel/ui/properties/NamespacePrefixesSection.java - bpel/org.eclipse.bpel - Git at Google

 /*
  * Copyright (c) 2010, 2012 JBoss, Inc. and others
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  */
 package org.eclipse.bpel.ui.properties;

 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;

 import org.eclipse.bpel.common.ui.details.IDetailsAreaConstants;
 import org.eclipse.bpel.common.ui.flatui.FlatFormAttachment;
 import org.eclipse.bpel.common.ui.flatui.FlatFormData;
 import org.eclipse.bpel.model.Activity;
 import org.eclipse.bpel.model.Import;
 import org.eclipse.bpel.model.Process;
 import org.eclipse.bpel.model.util.BPELUtils;
 import org.eclipse.bpel.ui.IBPELUIConstants;
 import org.eclipse.bpel.ui.IHelpContextIds;
 import org.eclipse.bpel.ui.Messages;
 import org.eclipse.bpel.ui.commands.AddImportCommand;
 import org.eclipse.bpel.ui.commands.RemoveImportCommand;
 import org.eclipse.bpel.ui.details.providers.ColumnTableProvider;
 import org.eclipse.bpel.ui.dialogs.NamespaceMappingDialog;
 import org.eclipse.bpel.ui.dialogs.SchemaImportDialog;
 import org.eclipse.bpel.ui.util.BPELUtil;
 import org.eclipse.bpel.ui.util.MultiObjectAdapter;
 import org.eclipse.bpel.ui.util.NamespaceUtils;
 import org.eclipse.bpel.ui.util.TableCursor;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.wst.wsdl.internal.impl.ImportImpl;
 import org.w3c.dom.Attr;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;

 /**
  * The Namespaces Property Tab contains a table of namespaces in scope for the currently
  * selected BPEL activity or the process. The table has the following columns:
  *
  * Prefix - the namespace prefix. This could be empty if the namespace was defined in
  *          an imported artifact (WSDL or XSD)
  * Namespace - the namespace definition
  * Context - the Activity or Process in which the namespace prefix was defined
  * Location - the resource artifact that defines the namespace
  *
  * A button with the label "Assign Prefix" will be enabled if the current selection in
  * the able has no namespace prefix. This will allow the user to assign a prefix.
  *
  * @see https://jira.jboss.org/browse/JBIDE-6765
  * @author Bob Brodt
  * @date Aug 13, 2010
  */
 public class NamespacePrefixesSection extends BPELPropertySection {

 	protected Composite parentComposite;

 	protected Composite activityComposite;

 	protected Label tabLabel;

 	protected Table prefixesTable;

 	protected TableViewer prefixesViewer;

 	protected ColumnTableProvider tableProvider;

 	protected TableCursor tableCursor = null;

 	/**
 	 * Make this section use all the vertical space it can get.
 	 *
 	 */
 	@Override
 	public boolean shouldUseExtraSpace() {
 		return true;
 	}

 	/**
 	 * Bug 290085 - Override the super-class because the input is Process not Import
 	 * If use super-class's directly, when change the import attributes
 	 * the properties section do not change. Grid Qian
 	 */
 	@Override
 	protected void addAllAdapters() {
 		super.addAllAdapters();
 		if (fAdapters.length > 0) {
 			if (getModel() != null) {
 				EObject obj = getModel();
 				if (obj instanceof Process) {
 					List<Import> list = ((Process) obj).getImports();
 					for (int i = 0; i < list.size(); i++) {
 						fAdapters[0].addToObject((Import) list.get(i));
 					}
 				}
 			}
 		}
 	}

 	@Override
 	protected MultiObjectAdapter[] createAdapters() {
 		return new MultiObjectAdapter[] { new MultiObjectAdapter() {
 			@Override
 			public void notify(Notification n) {
 				prefixesViewer.setInput(getInput());
 			}
 		}, };
 	}

 	protected void createWidgets(Composite parent) {

 		FlatFormData data;

 		final Button assignPrefixButton = fWidgetFactory.createButton(parent,
 				Messages.NamespacePrefixesSection_4, SWT.PUSH);
 		assignPrefixButton.setEnabled(false);

 		assignPrefixButton.addSelectionListener(new SelectionListener() {

 			public void widgetDefaultSelected(SelectionEvent e) {
 			}

 			public void widgetSelected(SelectionEvent e) {
 				assignPrefix();
 			}
 		});

 		data = new FlatFormData();
 		data.right = new FlatFormAttachment(100, -5
 				* IDetailsAreaConstants.HSPACE);
 		data.top = new FlatFormAttachment(0, IDetailsAreaConstants.VSPACE);
 		assignPrefixButton.setLayoutData(data);

 		tabLabel = fWidgetFactory.createLabel(parent,
 				Messages.NamespacePrefixesSection);
 		data = new FlatFormData();
 		data.left = new FlatFormAttachment(0, IDetailsAreaConstants.HSPACE);
 		data.top = new FlatFormAttachment(assignPrefixButton,
 				IDetailsAreaConstants.VSPACE);
 		tabLabel.setLayoutData(data);

 		// create table
 		prefixesTable = fWidgetFactory.createTable(parent, SWT.FULL_SELECTION | SWT.V_SCROLL
 				| SWT.READ_ONLY);

 		data = new FlatFormData();
 		data.left = new FlatFormAttachment(0, IDetailsAreaConstants.HSPACE);
 		data.right = new FlatFormAttachment(100, -5
 				* IDetailsAreaConstants.HSPACE);
 		data.top = new FlatFormAttachment(tabLabel,
 				IDetailsAreaConstants.VSPACE);
 		data.bottom = new FlatFormAttachment(100, -IDetailsAreaConstants.HSPACE);
 		prefixesTable.setLayoutData(data);

 		// set up table
 		prefixesTable.setLinesVisible(true);
 		prefixesTable.setHeaderVisible(true);

 		tableProvider = new ColumnTableProvider();
 		tableProvider.add(new PrefixColumn());
 		tableProvider.add(new NamespaceColumn());
 		tableProvider.add(new ContextColumn());
 		tableProvider.add(new LocationColumn());

 		prefixesViewer = new TableViewer(prefixesTable);
 		tableProvider.createTableLayout(prefixesTable);
 		prefixesViewer.setLabelProvider(tableProvider);
 		prefixesViewer.setCellModifier(tableProvider);
 		prefixesViewer.setContentProvider(new NamespacePrefixesProvider());
 		prefixesViewer.setColumnProperties(tableProvider.getColumnProperties());
 		prefixesViewer.setCellEditors(tableProvider.createCellEditors(prefixesTable));

 		prefixesViewer
 				.addPostSelectionChangedListener(new ISelectionChangedListener() {
 					public void selectionChanged(SelectionChangedEvent event) {
 						if (event.getSelection() instanceof StructuredSelection)
 						{
 							StructuredSelection sel = (StructuredSelection)event.getSelection();
 							NamespacePrefixElement elem = (NamespacePrefixElement)sel.getFirstElement();
 							if (elem!=null && (elem.prefix==null || elem.prefix.length()==0))
 								assignPrefixButton.setEnabled(true);
 							else
 								assignPrefixButton.setEnabled(false);
 						}
 					}
 				});

 		tableCursor = BPELUtil.createTableCursor(prefixesTable, prefixesViewer);
 	}

 	public class PrefixColumn extends ColumnTableProvider.Column implements
 			ILabelProvider {

 		@Override
 		public String getHeaderText() {
 			return Messages.NamespacePrefixesSection_0;
 		}

 		@Override
 		public String getProperty() {
 			return "NamespacePrefix"; //$NON-NLS-1$
 		}

 		@Override
 		public int getInitialWeight() {
 			return 10;
 		}

 		public String getText(Object element) {

 			String s = ((NamespacePrefixElement)element).prefix;
 			return (s == null) ? "" : s; //$NON-NLS-1$
 		}
 	}

 	public class NamespaceColumn extends ColumnTableProvider.Column implements
 			ILabelProvider {
 		@Override
 		public String getHeaderText() {
 			return Messages.NamespacePrefixesSection_1;
 		}

 		@Override
 		public String getProperty() {
 			return "Namespace"; //$NON-NLS-1$
 		}

 		@Override
 		public int getInitialWeight() {
 			return 40;
 		}

 		public String getText(Object element) {

 			String s = ((NamespacePrefixElement)element).namespace;
 			return (s == null) ? "" : s; //$NON-NLS-1$
 		}
 	}

 	public class ContextColumn extends ColumnTableProvider.Column implements
 			ILabelProvider {

 		@Override
 		public String getHeaderText() {
 			return Messages.NamespacePrefixesSection_2;
 		}

 		@Override
 		public String getProperty() {
 			return "Context"; //$NON-NLS-1$
 		}

 		@Override
 		public int getInitialWeight() {
 			return 10;
 		}

 		public String getText(Object element) {

 			String s = null;
 			EObject obj = ((NamespacePrefixElement)element).context;
 			if (obj instanceof Process)
 				s = "Process " + ((Process)obj).getName();
 			else if (obj instanceof Activity)
 				s = "Activity " + ((Activity)obj).getName();
 			return (s == null) ? "" : s; //$NON-NLS-1$
 		}
 	}

 	public class LocationColumn extends ColumnTableProvider.Column implements
 			ILabelProvider {
 		@Override
 		public String getHeaderText() {
 			return Messages.NamespacePrefixesSection_3;
 		}

 		@Override
 		public String getProperty() {
 			return "Location"; //$NON-NLS-1$
 		}

 		@Override
 		public int getInitialWeight() {
 			return 40;
 		}

 		public String getText(Object element) {

 			String s = ((NamespacePrefixElement)element).location;
 			return (s == null) ? "" : s; //$NON-NLS-1$
 		}
 	}


 	@Override
 	protected void basicSetInput(EObject newInput) {
 		super.basicSetInput(newInput);

 		if (getInput() != null) {
 			prefixesViewer.setInput(getInput());
 		}
 	}


 	@Override
 	protected void createClient(Composite parent) {
 		Composite composite = parentComposite = createFlatFormComposite(parent);

 		createWidgets(composite);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(parentComposite,
 				IHelpContextIds.PROPERTY_PAGE_NAMESPACE_PREFIXES);
 	}

 	@Override
 	public Object getUserContext() {
 		return ((StructuredSelection) prefixesViewer.getSelection())
 				.getFirstElement();
 	}

 	@Override
 	public void restoreUserContext(Object userContext) {
 		prefixesTable.setFocus();
 		if (userContext != null) {
 			prefixesViewer.setSelection(new StructuredSelection(userContext));
 		}
 	}

 	void assignPrefix () {

 		ISelection selection = prefixesViewer.getSelection();
 		if (selection.isEmpty()) {
 			return ;
 		}
 		IStructuredSelection ssel = null;
 		if ( (selection instanceof IStructuredSelection) == false) {
 			return;
 		}

 		ssel = (IStructuredSelection) selection;
 		NamespacePrefixElement elem = (NamespacePrefixElement)ssel.getFirstElement();

 		EObject modelObject = elem.context;
 		if (modelObject==null)
 			modelObject = this.fModelObject;

 		// We have to map the namespace to a prefix.
 		NamespaceMappingDialog dialog = new NamespaceMappingDialog(tabLabel.getShell(),modelObject);
 		dialog.setNamespace( elem.namespace );

 		if (dialog.open() == Window.CANCEL) {
 			return;
 		}

 		// define the prefix
 		BPELUtils.setPrefix( modelObject, elem.namespace, dialog.getPrefix());
 		elem.prefix = dialog.getPrefix();
 		elem.context = modelObject;

 		prefixesViewer.refresh();
 	}


 	@Override
 	public void gotoMarker(IMarker marker) {
 		// TODO Auto-generated method stub
 		super.gotoMarker(marker);
 	}

 	/**
 	 *
 	 */


 	@Override
 	public boolean isValidMarker(IMarker marker) {
 		return super.isValidMarker(marker);
 	}


 }
	/*
	* Copyright (c) 2010, 2012 JBoss, Inc. and others
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*/
	package org.eclipse.bpel.ui.properties;

	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;
	import java.util.Map.Entry;

	import org.eclipse.bpel.common.ui.details.IDetailsAreaConstants;
	import org.eclipse.bpel.common.ui.flatui.FlatFormAttachment;
	import org.eclipse.bpel.common.ui.flatui.FlatFormData;
	import org.eclipse.bpel.model.Activity;
	import org.eclipse.bpel.model.Import;
	import org.eclipse.bpel.model.Process;
	import org.eclipse.bpel.model.util.BPELUtils;
	import org.eclipse.bpel.ui.IBPELUIConstants;
	import org.eclipse.bpel.ui.IHelpContextIds;
	import org.eclipse.bpel.ui.Messages;
	import org.eclipse.bpel.ui.commands.AddImportCommand;
	import org.eclipse.bpel.ui.commands.RemoveImportCommand;
	import org.eclipse.bpel.ui.details.providers.ColumnTableProvider;
	import org.eclipse.bpel.ui.dialogs.NamespaceMappingDialog;
	import org.eclipse.bpel.ui.dialogs.SchemaImportDialog;
	import org.eclipse.bpel.ui.util.BPELUtil;
	import org.eclipse.bpel.ui.util.MultiObjectAdapter;
	import org.eclipse.bpel.ui.util.NamespaceUtils;
	import org.eclipse.bpel.ui.util.TableCursor;
	import org.eclipse.core.resources.IMarker;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.window.Window;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.wst.wsdl.internal.impl.ImportImpl;
	import org.w3c.dom.Attr;
	import org.w3c.dom.Element;
	import org.w3c.dom.Node;

	/**
	* The Namespaces Property Tab contains a table of namespaces in scope for the currently
	* selected BPEL activity or the process. The table has the following columns:
	*
	* Prefix - the namespace prefix. This could be empty if the namespace was defined in
	* an imported artifact (WSDL or XSD)
	* Namespace - the namespace definition
	* Context - the Activity or Process in which the namespace prefix was defined
	* Location - the resource artifact that defines the namespace
	*
	* A button with the label "Assign Prefix" will be enabled if the current selection in
	* the able has no namespace prefix. This will allow the user to assign a prefix.
	*
	* @see https://jira.jboss.org/browse/JBIDE-6765
	* @author Bob Brodt
	* @date Aug 13, 2010
	*/
	public class NamespacePrefixesSection extends BPELPropertySection {

	protected Composite parentComposite;

	protected Composite activityComposite;

	protected Label tabLabel;

	protected Table prefixesTable;

	protected TableViewer prefixesViewer;

	protected ColumnTableProvider tableProvider;

	protected TableCursor tableCursor = null;

	/**
	* Make this section use all the vertical space it can get.
	*
	*/
	@Override
	public boolean shouldUseExtraSpace() {
	return true;
	}

	/**
	* Bug 290085 - Override the super-class because the input is Process not Import
	* If use super-class's directly, when change the import attributes
	* the properties section do not change. Grid Qian
	*/
	@Override
	protected void addAllAdapters() {
	super.addAllAdapters();
	if (fAdapters.length > 0) {
	if (getModel() != null) {
	EObject obj = getModel();
	if (obj instanceof Process) {
	List<Import> list = ((Process) obj).getImports();
	for (int i = 0; i < list.size(); i++) {
	fAdapters[0].addToObject((Import) list.get(i));
	}
	}
	}
	}
	}

	@Override
	protected MultiObjectAdapter[] createAdapters() {
	return new MultiObjectAdapter[] { new MultiObjectAdapter() {
	@Override
	public void notify(Notification n) {
	prefixesViewer.setInput(getInput());
	}
	}, };
	}

	protected void createWidgets(Composite parent) {

	FlatFormData data;

	final Button assignPrefixButton = fWidgetFactory.createButton(parent,
	Messages.NamespacePrefixesSection_4, SWT.PUSH);
	assignPrefixButton.setEnabled(false);

	assignPrefixButton.addSelectionListener(new SelectionListener() {

	public void widgetDefaultSelected(SelectionEvent e) {
	}

	public void widgetSelected(SelectionEvent e) {
	assignPrefix();
	}
	});

	data = new FlatFormData();
	data.right = new FlatFormAttachment(100, -5
	* IDetailsAreaConstants.HSPACE);
	data.top = new FlatFormAttachment(0, IDetailsAreaConstants.VSPACE);
	assignPrefixButton.setLayoutData(data);

	tabLabel = fWidgetFactory.createLabel(parent,
	Messages.NamespacePrefixesSection);
	data = new FlatFormData();
	data.left = new FlatFormAttachment(0, IDetailsAreaConstants.HSPACE);
	data.top = new FlatFormAttachment(assignPrefixButton,
	IDetailsAreaConstants.VSPACE);
	tabLabel.setLayoutData(data);

	// create table
	prefixesTable = fWidgetFactory.createTable(parent, SWT.FULL_SELECTION \| SWT.V_SCROLL
	\| SWT.READ_ONLY);

	data = new FlatFormData();
	data.left = new FlatFormAttachment(0, IDetailsAreaConstants.HSPACE);
	data.right = new FlatFormAttachment(100, -5
	* IDetailsAreaConstants.HSPACE);
	data.top = new FlatFormAttachment(tabLabel,
	IDetailsAreaConstants.VSPACE);
	data.bottom = new FlatFormAttachment(100, -IDetailsAreaConstants.HSPACE);
	prefixesTable.setLayoutData(data);

	// set up table
	prefixesTable.setLinesVisible(true);
	prefixesTable.setHeaderVisible(true);

	tableProvider = new ColumnTableProvider();
	tableProvider.add(new PrefixColumn());
	tableProvider.add(new NamespaceColumn());
	tableProvider.add(new ContextColumn());
	tableProvider.add(new LocationColumn());

	prefixesViewer = new TableViewer(prefixesTable);
	tableProvider.createTableLayout(prefixesTable);
	prefixesViewer.setLabelProvider(tableProvider);
	prefixesViewer.setCellModifier(tableProvider);
	prefixesViewer.setContentProvider(new NamespacePrefixesProvider());
	prefixesViewer.setColumnProperties(tableProvider.getColumnProperties());
	prefixesViewer.setCellEditors(tableProvider.createCellEditors(prefixesTable));

	prefixesViewer
	.addPostSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	if (event.getSelection() instanceof StructuredSelection)
	{
	StructuredSelection sel = (StructuredSelection)event.getSelection();
	NamespacePrefixElement elem = (NamespacePrefixElement)sel.getFirstElement();
	if (elem!=null && (elem.prefix==null \|\| elem.prefix.length()==0))
	assignPrefixButton.setEnabled(true);
	else
	assignPrefixButton.setEnabled(false);
	}
	}
	});

	tableCursor = BPELUtil.createTableCursor(prefixesTable, prefixesViewer);
	}

	public class PrefixColumn extends ColumnTableProvider.Column implements
	ILabelProvider {

	@Override
	public String getHeaderText() {
	return Messages.NamespacePrefixesSection_0;
	}

	@Override
	public String getProperty() {
	return "NamespacePrefix"; //$NON-NLS-1$
	}

	@Override
	public int getInitialWeight() {
	return 10;
	}

	public String getText(Object element) {

	String s = ((NamespacePrefixElement)element).prefix;
	return (s == null) ? "" : s; //$NON-NLS-1$
	}
	}

	public class NamespaceColumn extends ColumnTableProvider.Column implements
	ILabelProvider {
	@Override
	public String getHeaderText() {
	return Messages.NamespacePrefixesSection_1;
	}

	@Override
	public String getProperty() {
	return "Namespace"; //$NON-NLS-1$
	}

	@Override
	public int getInitialWeight() {
	return 40;
	}

	public String getText(Object element) {

	String s = ((NamespacePrefixElement)element).namespace;
	return (s == null) ? "" : s; //$NON-NLS-1$
	}
	}

	public class ContextColumn extends ColumnTableProvider.Column implements
	ILabelProvider {

	@Override
	public String getHeaderText() {
	return Messages.NamespacePrefixesSection_2;
	}

	@Override
	public String getProperty() {
	return "Context"; //$NON-NLS-1$
	}

	@Override
	public int getInitialWeight() {
	return 10;
	}

	public String getText(Object element) {

	String s = null;
	EObject obj = ((NamespacePrefixElement)element).context;
	if (obj instanceof Process)
	s = "Process " + ((Process)obj).getName();
	else if (obj instanceof Activity)
	s = "Activity " + ((Activity)obj).getName();
	return (s == null) ? "" : s; //$NON-NLS-1$
	}
	}

	public class LocationColumn extends ColumnTableProvider.Column implements
	ILabelProvider {
	@Override
	public String getHeaderText() {
	return Messages.NamespacePrefixesSection_3;
	}

	@Override
	public String getProperty() {
	return "Location"; //$NON-NLS-1$
	}

	@Override
	public int getInitialWeight() {
	return 40;
	}

	public String getText(Object element) {

	String s = ((NamespacePrefixElement)element).location;
	return (s == null) ? "" : s; //$NON-NLS-1$
	}
	}



	@Override
	protected void basicSetInput(EObject newInput) {
	super.basicSetInput(newInput);

	if (getInput() != null) {
	prefixesViewer.setInput(getInput());
	}
	}


	@Override
	protected void createClient(Composite parent) {
	Composite composite = parentComposite = createFlatFormComposite(parent);

	createWidgets(composite);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(parentComposite,
	IHelpContextIds.PROPERTY_PAGE_NAMESPACE_PREFIXES);
	}

	@Override
	public Object getUserContext() {
	return ((StructuredSelection) prefixesViewer.getSelection())
	.getFirstElement();
	}

	@Override
	public void restoreUserContext(Object userContext) {
	prefixesTable.setFocus();
	if (userContext != null) {
	prefixesViewer.setSelection(new StructuredSelection(userContext));
	}
	}

	void assignPrefix () {

	ISelection selection = prefixesViewer.getSelection();
	if (selection.isEmpty()) {
	return ;
	}
	IStructuredSelection ssel = null;
	if ( (selection instanceof IStructuredSelection) == false) {
	return;
	}

	ssel = (IStructuredSelection) selection;
	NamespacePrefixElement elem = (NamespacePrefixElement)ssel.getFirstElement();

	EObject modelObject = elem.context;
	if (modelObject==null)
	modelObject = this.fModelObject;

	// We have to map the namespace to a prefix.
	NamespaceMappingDialog dialog = new NamespaceMappingDialog(tabLabel.getShell(),modelObject);
	dialog.setNamespace( elem.namespace );

	if (dialog.open() == Window.CANCEL) {
	return;
	}

	// define the prefix
	BPELUtils.setPrefix( modelObject, elem.namespace, dialog.getPrefix());
	elem.prefix = dialog.getPrefix();
	elem.context = modelObject;

	prefixesViewer.refresh();
	}



	@Override
	public void gotoMarker(IMarker marker) {
	// TODO Auto-generated method stub
	super.gotoMarker(marker);
	}

	/**
	*
	*/


	@Override
	public boolean isValidMarker(IMarker marker) {
	return super.isValidMarker(marker);
	}



	}