/******************************************************************************* * Copyright (c) 2006-2012 * Software Technology Group, Dresden University of Technology * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026 * * 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: * Software Technology Group - TU Dresden, Germany; * DevBoost GmbH - Berlin, Germany * - initial API and implementation ******************************************************************************/ package org.reuseware.coconut.compositionprogram.diagram.navigator; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; 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.edit.ui.provider.AdapterFactoryContentProvider; import org.eclipse.emf.transaction.TransactionalEditingDomain; import org.eclipse.emf.workspace.util.WorkspaceSynchronizer; import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory; import org.eclipse.jface.viewers.Viewer; import org.eclipse.ui.IMemento; import org.eclipse.ui.navigator.ICommonContentExtensionSite; import org.eclipse.ui.navigator.ICommonContentProvider; import org.reuseware.coconut.compositionprogram.diagram.part.CompositionprogramDiagramEditorPlugin; /** * @generated */ public class CompositionprogramDomainNavigatorContentProvider implements ICommonContentProvider { /** * @generated */ private AdapterFactoryContentProvider myAdapterFactoryContentProvier; /** * @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 */ public CompositionprogramDomainNavigatorContentProvider() { myAdapterFactoryContentProvier = new AdapterFactoryContentProvider( CompositionprogramDiagramEditorPlugin.getInstance() .getItemProvidersAdapterFactory()); TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE .createEditingDomain(); myEditingDomain = (AdapterFactoryEditingDomain) editingDomain; myEditingDomain.setResourceToReadOnlyMap(new HashMap() { public Object get(Object key) { if (!containsKey(key)) { put(key, Boolean.TRUE); } return super.get(key); } }); myViewerRefreshRunnable = new Runnable() { public void run() { if (myViewer != null) { myViewer.refresh(); } } }; myWorkspaceSynchronizer = new WorkspaceSynchronizer(editingDomain, new WorkspaceSynchronizer.Delegate() { public void dispose() { } public boolean handleResourceChanged(final Resource resource) { unloadAllResources(); asyncRefresh(); return true; } public boolean handleResourceDeleted(Resource resource) { unloadAllResources(); asyncRefresh(); return true; } public boolean handleResourceMoved(Resource resource, final URI newURI) { unloadAllResources(); asyncRefresh(); return true; } }); } /** * @generated */ public void dispose() { myWorkspaceSynchronizer.dispose(); myWorkspaceSynchronizer = null; myViewerRefreshRunnable = null; myViewer = null; unloadAllResources(); ((TransactionalEditingDomain) myEditingDomain).dispose(); myEditingDomain = null; } /** * @generated */ 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 */ public Object[] getElements(Object inputElement) { return getChildren(inputElement); } /** * @generated */ public void restoreState(IMemento aMemento) { } /** * @generated */ public void saveState(IMemento aMemento) { } /** * @generated */ public void init(ICommonContentExtensionSite aConfig) { } /** * @generated */ 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); return wrapEObjects( myAdapterFactoryContentProvier.getChildren(resource), parentElement); } if (parentElement instanceof CompositionprogramDomainNavigatorItem) { return wrapEObjects( myAdapterFactoryContentProvier.getChildren(((CompositionprogramDomainNavigatorItem) parentElement) .getEObject()), parentElement); } return EMPTY_ARRAY; } /** * @generated */ public Object[] wrapEObjects(Object[] objects, Object parentElement) { Collection result = new ArrayList(); for (int i = 0; i < objects.length; i++) { if (objects[i] instanceof EObject) { result.add(new CompositionprogramDomainNavigatorItem( (EObject) objects[i], parentElement, myAdapterFactoryContentProvier)); } } return result.toArray(); } /** * @generated */ public Object getParent(Object element) { if (element instanceof CompositionprogramAbstractNavigatorItem) { CompositionprogramAbstractNavigatorItem abstractNavigatorItem = (CompositionprogramAbstractNavigatorItem) element; return abstractNavigatorItem.getParent(); } return null; } /** * @generated */ public boolean hasChildren(Object element) { return element instanceof IFile || getChildren(element).length > 0; } }