| /******************************************************************************* |
| * Copyright (c) 2009, 2013 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.pde.api.tools.ui.internal; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.ui.IActionFilter; |
| |
| /** |
| * Define an action filter that can be used on IJavaElement. |
| */ |
| public class JavaElementActionFilter implements IActionFilter { |
| |
| /** |
| * @see org.eclipse.ui.IActionFilter#testAttribute(Object, String, String) |
| */ |
| @Override |
| public boolean testAttribute(Object target, String name, String value) { |
| if (name.equals("JavaElementActionFilter")) { //$NON-NLS-1$ |
| if (target instanceof IJavaElement) { |
| IJavaElement javaElement = (IJavaElement) target; |
| if (value.equals("isEnabled")) { //$NON-NLS-1$ |
| while (javaElement != null) { |
| switch (javaElement.getElementType()) { |
| case IJavaElement.PACKAGE_FRAGMENT_ROOT: |
| IPackageFragmentRoot root = (IPackageFragmentRoot) javaElement; |
| return !root.isArchive(); |
| case IJavaElement.PACKAGE_FRAGMENT: |
| case IJavaElement.COMPILATION_UNIT: |
| case IJavaElement.CLASS_FILE: |
| case IJavaElement.TYPE: |
| javaElement = javaElement.getParent(); |
| break; |
| case IJavaElement.ANNOTATION: |
| case IJavaElement.FIELD: |
| case IJavaElement.IMPORT_CONTAINER: |
| case IJavaElement.IMPORT_DECLARATION: |
| case IJavaElement.INITIALIZER: |
| case IJavaElement.JAVA_MODEL: |
| case IJavaElement.LOCAL_VARIABLE: |
| case IJavaElement.METHOD: |
| case IJavaElement.PACKAGE_DECLARATION: |
| case IJavaElement.TYPE_PARAMETER: |
| return false; |
| case IJavaElement.JAVA_PROJECT: |
| return true; |
| default: |
| break; |
| } |
| } |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| } |