--- /dev/null
+package org.argeo.cms.ui.eclipse.forms;
+
+import org.eclipse.jface.viewers.ISelection;
+
+/**
+ * Form parts can implement this interface if they want to be
+ * notified when another part on the same form changes selection
+ * state.
+ *
+ * @see IFormPart
+ * @since 1.0
+ */
+public interface IPartSelectionListener {
+ /**
+ * Called when the provided part has changed selection state.
+ *
+ * @param part
+ * the selection source
+ * @param selection
+ * the new selection
+ */
+ public void selectionChanged(IFormPart part, ISelection selection);
+}