X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=server%2Fplugins%2Forg.argeo.jcr.ui.explorer%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fjcr%2Fui%2Fexplorer%2Fcommands%2FDeleteNodes.java;fp=server%2Fplugins%2Forg.argeo.jcr.ui.explorer%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fjcr%2Fui%2Fexplorer%2Fcommands%2FDeleteNodes.java;h=a0e106906a3747b297d66f0c392505c761293fbf;hb=c0b7b3f9d1781d074ab35d24017042fa9415e1e4;hp=0000000000000000000000000000000000000000;hpb=ed36fb56ac5aff2d606b35be175eb32657d6ec56;p=lgpl%2Fargeo-commons.git

diff --git a/server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/commands/DeleteNodes.java b/server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/commands/DeleteNodes.java
new file mode 100644
index 000000000..a0e106906
--- /dev/null
+++ b/server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/commands/DeleteNodes.java
@@ -0,0 +1,83 @@
+package org.argeo.jcr.ui.explorer.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.TreeParent;
+import org.argeo.jcr.ui.explorer.model.SingleJcrNode;
+import org.argeo.jcr.ui.explorer.model.WorkspaceNode;
+import org.argeo.jcr.ui.explorer.views.GenericJcrBrowser;
+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: both in the JCR repository and in the UI view.
+ * Warning no check is done, except implementation dependent native checks,
+ * handle with care.
+ */
+public class DeleteNodes extends AbstractHandler {
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
+				.getActivePage().getSelection();
+		GenericJcrBrowser view = (GenericJcrBrowser) HandlerUtil
+				.getActiveWorkbenchWindow(event).getActivePage()
+				.findView(HandlerUtil.getActivePartId(event));
+
+		if (selection != null && selection instanceof IStructuredSelection) {
+			Iterator<?> it = ((IStructuredSelection) selection).iterator();
+			Object obj = null;
+			SingleJcrNode ancestor = null;
+			WorkspaceNode rootAncestor = null;
+			try {
+				while (it.hasNext()) {
+					obj = it.next();
+					if (obj instanceof SingleJcrNode) {
+						// Cache objects
+						SingleJcrNode sjn = (SingleJcrNode) obj;
+						TreeParent tp = (TreeParent) sjn.getParent();
+						Node node = sjn.getNode();
+
+						// Jcr Remove
+						node.remove();
+						node.getSession().save();
+						// UI remove
+						tp.removeChild(sjn);
+
+						// Check if the parent is the root node
+						if (tp instanceof WorkspaceNode)
+							rootAncestor = (WorkspaceNode) tp;
+						else
+							ancestor = getOlder(ancestor, (SingleJcrNode) tp);
+					}
+				}
+				if (rootAncestor != null)
+					view.nodeRemoved(rootAncestor);
+				else if (ancestor != null)
+					view.nodeRemoved(ancestor);
+			} catch (Exception e) {
+				ErrorFeedback.show("Cannot delete selected node ", e);
+			}
+		}
+		return null;
+	}
+
+	private SingleJcrNode getOlder(SingleJcrNode A, SingleJcrNode B) {
+		try {
+			if (A == null)
+				return B == null ? null : B;
+			// Todo enhanced this method
+			else
+				return A.getNode().getDepth() <= B.getNode().getDepth() ? A : B;
+		} catch (RepositoryException re) {
+			throw new ArgeoException("Cannot find ancestor", re);
+		}
+	}
+}