Renamed from deleteNode to deleteNodeS to fit the real action done (deletion of multi...

git-svn-id: https://svn.argeo.org/commons/trunk@5018 4cfe0d0a-d680-48aa-b62c-e0a02a3f76cc

diff --git a/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/commands/DeleteNodes.java b/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/commands/DeleteNodes.java
new file mode 100644 (file)
index 0000000..8de1f2f
--- /dev/null
+++ b/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/commands/DeleteNodes.java
@@ -0,0 +1,70 @@
+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);
+               }
+       }
+}