X-Git-Url: http://git.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/ResourceTransferDragAdapter.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/ResourceTransferDragAdapter.java
new file mode 100644
index 0000000..d8c6e9c
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/ResourceTransferDragAdapter.java
@@ -0,0 +1,135 @@
+/*******************************************************************************
+ * 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();
+		}
+	}
+}