| /******************************************************************************* |
| * Copyright (c) 2004 International Business Machines Corp. and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v0.5 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v05.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.debug.internal.ui; |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.content.IContentDescription; |
| import org.eclipse.core.runtime.content.IContentType; |
| |
| /** |
| * ResourceExtender provides property testers for the XML expression |
| * language evaluation. We provide a copy in Debug so that launch shortcuts |
| * can add contextual launch enablement that does not require their plugins |
| * to be loaded. |
| * Copied from org.eclipse.jdt.internal.corext.refactoring.participants.xml.ResourceExtender |
| */ |
| public class ResourceExtender extends PropertyTester { |
| |
| private static final String PROPERTY_MATCHES_PATTERN= "matchesPattern"; //$NON-NLS-1$ |
| private static final String PROJECT_NATURE = "projectNature"; //$NON-NLS-1$ |
| private static final String PROPERTY_MATCHES_CONTENT_TYPE= "matchesContentType"; //$NON-NLS-1$ |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.corext.refactoring.participants.properties.IPropertyEvaluator#test(java.lang.Object, java.lang.String, java.lang.String) |
| */ |
| public boolean test(Object receiver, String method, Object[] args, Object expectedValue) { |
| IResource resource= (IResource) ((IAdaptable)receiver).getAdapter(IResource.class); |
| if (resource != null) { |
| if (PROPERTY_MATCHES_PATTERN.equals(method)) { //$NON-NLS-1$ |
| String fileName= resource.getName(); |
| StringMatcher matcher= new StringMatcher((String)expectedValue, false, false); |
| return matcher.match(fileName); |
| } else if (PROJECT_NATURE.equals(method)) { |
| try { |
| IProject proj = resource.getProject(); |
| return proj.isAccessible() && proj.hasNature((String)expectedValue); |
| } catch (CoreException e) { |
| return false; |
| } |
| } else if (PROPERTY_MATCHES_CONTENT_TYPE.equals(method)) { |
| return matchesContentType(resource, (String) expectedValue); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns whether or not the given file's content type matches |
| * the specified content type. |
| * |
| * Content types are looked up in the content type registry. |
| * |
| * @return whether or not the given resource has the given content type |
| */ |
| private boolean matchesContentType(IResource resource, String contentType) { |
| if (resource == null || !(resource instanceof IFile) || !resource.exists()) { |
| return false; |
| } |
| IFile file= (IFile) resource; |
| IContentDescription description; |
| try { |
| description = file.getContentDescription(); |
| } catch (CoreException e) { |
| return false; |
| } |
| if (description != null) { |
| IContentType type= description.getContentType(); |
| return type != null && contentType.equals(type.getId()); |
| } |
| return false; |
| } |
| |
| } |