--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.dnd;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import net.sourceforge.phpdt.internal.ui.IJavaStatusConstants;
+import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
+import net.sourceforge.phpdt.internal.ui.util.SWTUtil;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.MultiStatus;
+import org.eclipse.jface.dialogs.ErrorDialog;
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DragSourceAdapter;
+import org.eclipse.swt.dnd.DragSourceEvent;
+import org.eclipse.swt.dnd.Transfer;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.part.ResourceTransfer;
+
+/**
+ * A drag adapter that transfers the current selection as </code> IResource</code>.
+ * Only those elements in the selection are part of the transfer which can be
+ * converted into an <code>IResource </code>.
+ */
+public class ResourceTransferDragAdapter extends DragSourceAdapter implements
+ TransferDragSourceListener {
+
+ private ISelectionProvider fProvider;
+
+ private static final List EMPTY_LIST = new ArrayList(0);
+
+ /**
+ * Creates a new ResourceTransferDragAdapter for the given selection
+ * provider.
+ *
+ * @param provider
+ * the selection provider to access the viewer's selection
+ */
+ public ResourceTransferDragAdapter(ISelectionProvider provider) {
+ fProvider = provider;
+ Assert.isNotNull(fProvider);
+ }
+
+ public Transfer getTransfer() {
+ return ResourceTransfer.getInstance();
+ }
+
+ public void dragStart(DragSourceEvent event) {
+ event.doit = convertSelection().size() > 0;
+ }
+
+ public void dragSetData(DragSourceEvent event) {
+ List resources = convertSelection();
+ event.data = (IResource[]) resources.toArray(new IResource[resources
+ .size()]);
+ }
+
+ public void dragFinished(DragSourceEvent event) {
+ if (!event.doit)
+ return;
+
+ if (event.detail == DND.DROP_MOVE) {
+ handleFinishedDropMove(event);
+ }
+ }
+
+ private List convertSelection() {
+ ISelection s = fProvider.getSelection();
+ if (!(s instanceof IStructuredSelection))
+ return EMPTY_LIST;
+ IStructuredSelection selection = (IStructuredSelection) s;
+ List result = new ArrayList(selection.size());
+ for (Iterator iter = selection.iterator(); iter.hasNext();) {
+ Object element = iter.next();
+ if (element instanceof IAdaptable) {
+ IAdaptable adaptable = (IAdaptable) element;
+ IResource resource = (IResource) adaptable
+ .getAdapter(IResource.class);
+ if (resource != null)
+ result.add(resource);
+ }
+ }
+ return result;
+ }
+
+ private void handleFinishedDropMove(DragSourceEvent event) {
+ MultiStatus status = new MultiStatus(
+ PHPeclipsePlugin.getPluginId(),
+ IJavaStatusConstants.INTERNAL_ERROR,
+ PHPUIMessages
+ .getString("ResourceTransferDragAdapter.cannot_delete_resource"), //$NON-NLS-1$
+ null);
+ List resources = convertSelection();
+ for (Iterator iter = resources.iterator(); iter.hasNext();) {
+ IResource resource = (IResource) iter.next();
+ try {
+ resource.delete(true, null);
+ } catch (CoreException e) {
+ status.add(e.getStatus());
+ }
+ }
+ if (status.getChildren().length > 0) {
+ Shell parent = SWTUtil.getShell(event.widget);
+ ErrorDialog error = new ErrorDialog(
+ parent,
+ PHPUIMessages
+ .getString("ResourceTransferDragAdapter.moving_resource"), //$NON-NLS-1$
+ PHPUIMessages
+ .getString("ResourceTransferDragAdapter.cannot_delete_files"), //$NON-NLS-1$
+ status, IStatus.ERROR);
+ error.open();
+ }
+ }
+}