| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.typehierarchy; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.jdt.core.IType; |
| |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.ui.ITypeHierarchyViewPart; |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.util.SelectionUtil; |
| |
| /** |
| * Refocuses the type hierarchy on the currently selection type. |
| */ |
| public class FocusOnSelectionAction extends Action { |
| |
| private ITypeHierarchyViewPart fViewPart; |
| |
| public FocusOnSelectionAction(ITypeHierarchyViewPart part) { |
| super(TypeHierarchyMessages.FocusOnSelectionAction_label); |
| setDescription(TypeHierarchyMessages.FocusOnSelectionAction_description); |
| setToolTipText(TypeHierarchyMessages.FocusOnSelectionAction_tooltip); |
| fViewPart= part; |
| |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.FOCUS_ON_SELECTION_ACTION); |
| } |
| |
| private ISelection getSelection() { |
| ISelectionProvider provider= fViewPart.getSite().getSelectionProvider(); |
| if (provider != null) { |
| return provider.getSelection(); |
| } |
| return null; |
| } |
| |
| |
| /* |
| * @see Action#run |
| */ |
| @Override |
| public void run() { |
| Object element= SelectionUtil.getSingleElement(getSelection()); |
| if (element instanceof IType) { |
| fViewPart.setInputElement((IType)element); |
| } |
| } |
| |
| public boolean canActionBeAdded() { |
| Object element= SelectionUtil.getSingleElement(getSelection()); |
| if (element instanceof IType) { |
| IType type= (IType)element; |
| setText(Messages.format( |
| TypeHierarchyMessages.FocusOnSelectionAction_label, |
| JavaElementLabels.getTextLabel(type, 0))); |
| return true; |
| } |
| return false; |
| } |
| } |