| /******************************************************************************* |
| * Copyright (c) 2001, 2004 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.wsdl.ui.internal.util; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| |
| // This class is used to help syncronize selections between two models. |
| // |
| public abstract class SelectionAdapter implements ISelectionProvider |
| { |
| protected List listenerList = new ArrayList(); |
| protected ISelection selection = new StructuredSelection(); |
| protected ISelectionProvider eventSource; |
| |
| public void setEventSource(ISelectionProvider eventSource) |
| { |
| this.eventSource = eventSource; |
| } |
| |
| public void addSelectionChangedListener(ISelectionChangedListener listener) |
| { |
| listenerList.add(listener); |
| } |
| |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) |
| { |
| listenerList.remove(listener); |
| } |
| |
| public ISelection getSelection() |
| { |
| return selection; |
| } |
| |
| /** |
| * This method should be specialized to return the correct object that corresponds to the 'other' model |
| */ |
| abstract protected Object getObjectForOtherModel(Object object); |
| |
| |
| public void setSelection(ISelection modelSelection) |
| { |
| List otherModelObjectList = new ArrayList(); |
| if (modelSelection instanceof IStructuredSelection) |
| { |
| for (Iterator i = ((IStructuredSelection)modelSelection).iterator(); i.hasNext(); ) |
| { |
| Object modelObject = i.next(); |
| Object otherModelObject = getObjectForOtherModel(modelObject); |
| if (otherModelObject != null) |
| { |
| otherModelObjectList.add(otherModelObject); |
| } |
| } |
| } |
| |
| StructuredSelection nodeSelection = new StructuredSelection(otherModelObjectList); |
| selection = nodeSelection; |
| SelectionChangedEvent event = new SelectionChangedEvent(eventSource != null ? eventSource : this, nodeSelection); |
| |
| for (Iterator i = listenerList.iterator(); i.hasNext(); ) |
| { |
| ISelectionChangedListener listener = (ISelectionChangedListener)i.next(); |
| listener.selectionChanged(event); |
| } |
| } |
| } |