package org.eclipse.gmf.examples.mindmap.diagram.sheet;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.ui.provider.PropertySource;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.diagram.ui.properties.sections.AdvancedPropertySection;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.properties.IPropertySourceProvider;
public class MindmapPropertySection extends AdvancedPropertySection implements IPropertySourceProvider {
public IPropertySource getPropertySource(Object object) {
if (object instanceof IPropertySource) {
return (IPropertySource) object;
}
final AdapterFactory af = getAdapterFactory(object);
if (af != null) {
final IItemPropertySource ips = (IItemPropertySource) af.adapt(object, IItemPropertySource.class);
if (ips != null) {
return new PropertySource(object, ips);
}
}
if (object instanceof IAdaptable) {
return (IPropertySource) ((IAdaptable) object).getAdapter(IPropertySource.class);
}
return null;
}
@Override
protected IPropertySourceProvider getPropertySourceProvider() {
return this;
}
protected Object transformSelection(Object selected) {
if (selected instanceof EditPart) {
final Object model = ((EditPart) selected).getModel();
return model instanceof View ? ((View) model).getElement() : null;
}
if (selected instanceof View) {
return ((View) selected).getElement();
}
if (selected instanceof IAdaptable) {
final View view = (View) ((IAdaptable) selected).getAdapter(View.class);
if (view != null) {
return view.getElement();
}
}
return selected;
}
@Override
public void setInput(IWorkbenchPart part, ISelection selection) {
if (selection.isEmpty() || false == selection instanceof StructuredSelection) {
super.setInput(part, selection);
return;
}
final StructuredSelection structuredSelection = (StructuredSelection) selection;
final List<Object> transformedSelection = new ArrayList<Object>(structuredSelection.size());
for (final Iterator<?> it = structuredSelection.iterator(); it.hasNext();) {
final Object r = transformSelection(it.next());
if (r != null) {
transformedSelection.add(r);
}
}
super.setInput(part, new StructuredSelection(transformedSelection));
}
protected AdapterFactory getAdapterFactory(Object object) {
if (getEditingDomain() instanceof AdapterFactoryEditingDomain) {
return ((AdapterFactoryEditingDomain) getEditingDomain()).getAdapterFactory();
}
final TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(object);
if (editingDomain != null) {
return ((AdapterFactoryEditingDomain) editingDomain).getAdapterFactory();
}
return null;
}
}