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/*****************************************************************************
* Copyright (c) 2009 Atos Origin.
*
*
* 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:
* Atos Origin - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.activity.navigator;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.core.resources.IFile;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.workspace.WorkspaceEditingDomainFactory;
import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ActivityDiagramEditPart;
import org.eclipse.papyrus.uml.diagram.activity.part.UMLVisualIDRegistry;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.navigator.ICommonContentExtensionSite;
import org.eclipse.ui.navigator.ICommonContentProvider;
/**
* @generated
*/
public class UMLNavigatorContentProvider implements ICommonContentProvider {
/**
* @generated
*/
private static final Object[] EMPTY_ARRAY = new Object[0];
/**
* @generated
*/
private Viewer myViewer;
/**
* @generated
*/
private AdapterFactoryEditingDomain myEditingDomain;
/**
* @generated
*/
private WorkspaceSynchronizer myWorkspaceSynchronizer;
/**
* @generated
*/
private Runnable myViewerRefreshRunnable;
/**
* @generated
*/
@SuppressWarnings({ "unchecked", "serial", "rawtypes" })
public UMLNavigatorContentProvider() {
TransactionalEditingDomain editingDomain = WorkspaceEditingDomainFactory.INSTANCE.createEditingDomain();
myEditingDomain = (AdapterFactoryEditingDomain) editingDomain;
@SuppressWarnings("serial")
Map<Resource, Boolean> map = new HashMap<Resource, Boolean>() {
@Override
public Boolean get(java.lang.Object key) {
if (!containsKey(key)) {
if (key instanceof Resource) {
put((Resource) key, Boolean.TRUE);
}
}
return super.get(key);
}
};
myEditingDomain.setResourceToReadOnlyMap(map);
myViewerRefreshRunnable = new Runnable() {
@Override
public void run() {
if (myViewer != null) {
myViewer.refresh();
}
}
};
myWorkspaceSynchronizer = new WorkspaceSynchronizer(editingDomain, new WorkspaceSynchronizer.Delegate() {
@Override
public void dispose() {
}
@Override
public boolean handleResourceChanged(final Resource resource) {
for (Iterator<Resource> it = myEditingDomain.getResourceSet().getResources().iterator(); it
.hasNext();) {
Resource nextResource = it.next();
nextResource.unload();
}
if (myViewer != null) {
myViewer.getControl().getDisplay().asyncExec(myViewerRefreshRunnable);
}
return true;
}
@Override
public boolean handleResourceDeleted(Resource resource) {
for (Iterator<Resource> it = myEditingDomain.getResourceSet().getResources().iterator(); it
.hasNext();) {
Resource nextResource = it.next();
nextResource.unload();
}
if (myViewer != null) {
myViewer.getControl().getDisplay().asyncExec(myViewerRefreshRunnable);
}
return true;
}
@Override
public boolean handleResourceMoved(Resource resource, final URI newURI) {
for (Iterator<Resource> it = myEditingDomain.getResourceSet().getResources().iterator(); it
.hasNext();) {
Resource nextResource = it.next();
nextResource.unload();
}
if (myViewer != null) {
myViewer.getControl().getDisplay().asyncExec(myViewerRefreshRunnable);
}
return true;
}
});
}
/**
* @generated
*/
@Override
public void dispose() {
myWorkspaceSynchronizer.dispose();
myWorkspaceSynchronizer = null;
myViewerRefreshRunnable = null;
for (Iterator<Resource> it = myEditingDomain.getResourceSet().getResources().iterator(); it.hasNext();) {
Resource resource = it.next();
resource.unload();
}
((TransactionalEditingDomain) myEditingDomain).dispose();
myEditingDomain = null;
}
/**
* @generated
*/
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
myViewer = viewer;
}
/**
* @generated
*/
void unloadAllResources() {
for (Resource nextResource : myEditingDomain.getResourceSet().getResources()) {
nextResource.unload();
}
}
/**
* @generated
*/
void asyncRefresh() {
if (myViewer != null && !myViewer.getControl().isDisposed()) {
myViewer.getControl().getDisplay().asyncExec(myViewerRefreshRunnable);
}
}
/**
* @generated
*/
@Override
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/**
* @generated
*/
@Override
public void restoreState(IMemento aMemento) {
}
/**
* @generated
*/
@Override
public void saveState(IMemento aMemento) {
}
/**
* @generated
*/
@Override
public void init(ICommonContentExtensionSite aConfig) {
}
/**
* @generated
*/
@Override
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof IFile) {
IFile file = (IFile) parentElement;
URI fileURI = URI.createPlatformResourceURI(file.getFullPath().toString(), true);
Resource resource = myEditingDomain.getResourceSet().getResource(fileURI, true);
Collection<Object> result = new ArrayList<Object>();
List<View> topViews = new ArrayList<View>(resource.getContents().size());
for (EObject o : resource.getContents()) {
if (o instanceof View) {
topViews.add((View) o);
}
}
return result.toArray();
}
if (parentElement instanceof UMLNavigatorGroup) {
UMLNavigatorGroup group = (UMLNavigatorGroup) parentElement;
return group.getChildren();
}
if (parentElement instanceof UMLNavigatorItem) {
UMLNavigatorItem navigatorItem = (UMLNavigatorItem) parentElement;
if (navigatorItem.isLeaf() || !isOwnView(navigatorItem.getView())) {
return EMPTY_ARRAY;
}
return getViewChildren(navigatorItem.getView(), parentElement);
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Object[] getViewChildren(View view, Object parentElement) {
String vid = UMLVisualIDRegistry.getVisualID(view);
if (vid != null) {
switch (vid) {
}
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private boolean isOwnView(View view) {
return ActivityDiagramEditPart.MODEL_ID.equals(UMLVisualIDRegistry.getModelID(view));
}
/**
* @generated
*/
@Override
public Object getParent(Object element) {
if (element instanceof UMLAbstractNavigatorItem) {
UMLAbstractNavigatorItem abstractNavigatorItem = (UMLAbstractNavigatorItem) element;
return abstractNavigatorItem.getParent();
}
return null;
}
/**
* @generated
*/
@Override
public boolean hasChildren(Object element) {
return element instanceof IFile || getChildren(element).length > 0;
}
}
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