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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.ui.internal;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.tcf.te.tcf.ui.handler.DeleteHandler;
import org.eclipse.tcf.te.tcf.ui.handler.OfflineCommandHandler;
/**
* Property tester implementation.
*/
public class PropertyTester extends org.eclipse.core.expressions.PropertyTester {
// Reference to the peer model delete handler (to determine "canDelete")
private final DeleteHandler deleteHandler = new DeleteHandler();
// Reference to the peer model offline handler (to determine "canMakeAvailableOffline")
private final OfflineCommandHandler offlineHandler = new OfflineCommandHandler();
/* (non-Javadoc)
* @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
*/
@Override
public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
if (receiver instanceof IStructuredSelection) {
// Analyze the selection
return testSelection((IStructuredSelection)receiver, property, args, expectedValue);
}
return false;
}
/**
* Test the specific selection properties.
*
* @param selection The selection. Must not be <code>null</code>.
* @param property The property to test.
* @param args The property arguments.
* @param expectedValue The expected value.
*
* @return <code>True</code> if the property to test has the expected value, <code>false</code>
* otherwise.
*/
protected boolean testSelection(IStructuredSelection selection, String property, Object[] args, Object expectedValue) {
Assert.isNotNull(selection);
if ("canDelete".equals(property)) { //$NON-NLS-1$
return deleteHandler.canDelete(selection);
}
if ("canMakeAvailableOffline".equals(property)) { //$NON-NLS-1$
return offlineHandler.canMakeAvailableOffline(selection);
}
return false;
}
}
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