--- /dev/null
+package org.argeo.eclipse.ui.jcr.commands;
+
+import java.util.Iterator;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+
+import org.argeo.ArgeoException;
+import org.argeo.eclipse.ui.ErrorFeedback;
+import org.argeo.eclipse.ui.jcr.views.AbstractJcrBrowser;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+/**
+ * Deletes the selected nodes and refresh the corresponding AbstractJcrView.
+ * Note that no model specific check is done to see if the node can be removed
+ * or not. Extend or override to implement specific behaviour.
+ */
+public class DeleteNodes extends AbstractHandler {
+ public final static String ID = "org.argeo.eclipse.ui.jcr.deleteNodes";
+ public final static String DEFAULT_LABEL = "Delete selected nodes";
+
+ public Object execute(ExecutionEvent event) throws ExecutionException {
+ ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
+ .getActivePage().getSelection();
+ AbstractJcrBrowser view = (AbstractJcrBrowser) HandlerUtil
+ .getActiveWorkbenchWindow(event).getActivePage()
+ .findView(HandlerUtil.getActivePartId(event));
+
+ if (selection != null && selection instanceof IStructuredSelection) {
+ Iterator<?> it = ((IStructuredSelection) selection).iterator();
+ Object obj = null;
+ Node ancestor = null;
+ try {
+ while (it.hasNext()) {
+ obj = it.next();
+ if (obj instanceof Node) {
+ Node node = (Node) obj;
+ Node parentNode = node.getParent();
+ node.remove();
+ node.getSession().save();
+ ancestor = getOlder(ancestor, parentNode);
+ }
+ }
+ if (ancestor != null)
+ view.nodeRemoved(ancestor);
+ } catch (Exception e) {
+ ErrorFeedback.show("Cannot delete node " + obj, e);
+ }
+ }
+ return null;
+ }
+
+ protected Node getOlder(Node A, Node B) {
+ try {
+
+ if (A == null)
+ return B == null ? null : B;
+ // Todo enhanced this method
+ else
+ return A.getDepth() <= B.getDepth() ? A : B;
+ } catch (RepositoryException re) {
+ throw new ArgeoException("Cannot find ancestor", re);
+ }
+ }
+}