Bug 10458 Support DND to set focus in Hierarchy View
Please enable Hierarchy view to support DND as a way to "focus on" something, whether it be a project, source folder, package, or type.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/util/OpenTypeHierarchyUtil.java
/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */
package org.eclipse.jdt.internal.ui.util;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.Assert;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IPerspectiveDescriptor;
import org.eclipse.ui.IPerspectiveRegistry;