| /******************************************************************************* |
| * Copyright (c) 2010, 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.wst.jsdt.debug.internal.rhino.ui; |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.wst.jsdt.core.IJavaScriptElement; |
| |
| /** |
| * Property tester for launching, etc |
| * <br><br> |
| * Provides the following tests: |
| * <ol> |
| * <li><code>isContainer</code> - if the selected item is a container</li> |
| * <li><code>isScript</code> - if the selected element is a script</li> |
| * </ol> |
| * @since 1.0 |
| */ |
| public class RhinoPropertyTester extends PropertyTester { |
| |
| static final String IS_SCRIPT = "isScript"; //$NON-NLS-1$ |
| |
| /** |
| * Constructor |
| */ |
| public RhinoPropertyTester() { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object) |
| */ |
| public boolean test(Object receiver, String property, Object[] args, Object expectedValue) { |
| if(receiver instanceof IAdaptable) { |
| IAdaptable adaptable = (IAdaptable) receiver; |
| if(IS_SCRIPT.equals(property)) { |
| return isScript(adaptable); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns if the element is a container or not |
| * @param element |
| * @return <code>true</code> if the element is a script <code>false</code> otherwise |
| */ |
| boolean isScript(IAdaptable element) { |
| IJavaScriptElement jselement = (IJavaScriptElement) element.getAdapter(IJavaScriptElement.class); |
| if(jselement != null) { |
| int type = jselement.getElementType(); |
| return type == IJavaScriptElement.JAVASCRIPT_UNIT; |
| } |
| IFile file = (IFile) element.getAdapter(IFile.class); |
| if(file != null) { |
| return "js".equals(file.getFileExtension()); //$NON-NLS-1$ |
| } |
| return false; |
| } |
| } |