From c41d6fae51e7bf019b1cb9605179e7a8d7099355 Mon Sep 17 00:00:00 2001
From: Bruno Sinou <bsinou@argeo.org>
Date: Mon, 6 Feb 2012 11:59:49 +0000
Subject: [PATCH] Renamed from deleteNode to deleteNodeS to fit the real action
 done (deletion of multiple nodes)

git-svn-id: https://svn.argeo.org/commons/trunk@5018 4cfe0d0a-d680-48aa-b62c-e0a02a3f76cc
---
 .../eclipse/ui/jcr/commands/DeleteNodes.java  | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/commands/DeleteNodes.java

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
index 000000000..8de1f2f00
--- /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);
+		}
+	}
+}
-- 
2.30.2