/******************************************************************************* | |
* Copyright (c) 2011, 2012 Ericsson AB 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 | |
* | |
* Description: | |
* | |
* This class implements a property testers that looks to see if the element can be | |
* transitioned to its previous state | |
* | |
* Contributors: | |
* Sebastien Dubois - Created for Mylyn Review R4E project | |
* | |
******************************************************************************/ | |
package org.eclipse.mylyn.reviews.r4e.ui.internal.commands.testers; | |
import java.util.AbstractList; | |
import org.eclipse.core.expressions.PropertyTester; | |
import org.eclipse.jface.viewers.TreeSelection; | |
import org.eclipse.mylyn.reviews.r4e.core.model.R4EReviewPhase; | |
import org.eclipse.mylyn.reviews.r4e.core.model.R4EReviewState; | |
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIAnomalyExtended; | |
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIModelController; | |
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIReviewBasic; | |
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIReviewExtended; | |
/** | |
* @author Sebastien Dubois | |
* @version $Revision: 1.0 $ | |
*/ | |
public class PreviousStatePropertyTester extends PropertyTester { | |
/** | |
* Executes the property test determined by the parameter <code>property</code>. | |
* | |
* @param aReceiver | |
* the receiver of the property test | |
* @param aProperty | |
* the property to test | |
* @param aArgs | |
* additional arguments to evaluate the property. If no arguments are specified in the <code>test</code> | |
* expression an array of length 0 is passed | |
* @param aExpectedValue | |
* the expected value of the property. The value is either of type <code>java.lang.String</code> or a | |
* boxed base type. If no value was specified in the <code>test</code> expressions then <code>null</code> | |
* is passed | |
* @return returns <code>true</code> if the property is equal to the expected value; otherwise <code>false</code> is | |
* returned | |
* @see org.eclipse.core.expressions.IPropertyTester#test(Object receiver, String property, Object[] args, Object | |
* expectedValue) | |
*/ | |
public boolean test(Object aReceiver, String aProperty, Object[] aArgs, Object aExpectedValue) { | |
if (null != R4EUIModelController.getActiveReview() && !R4EUIModelController.getActiveReview().isReadOnly()) { | |
if (aReceiver instanceof AbstractList && ((AbstractList<?>) aReceiver).size() > 0) { | |
final Object element = ((AbstractList<?>) aReceiver).get(0); | |
return testElement(element); | |
} else if (aReceiver instanceof TreeSelection) { | |
final Object element = ((TreeSelection) aReceiver).getFirstElement(); | |
return testElement(element); | |
} | |
} | |
return false; | |
} | |
/** | |
* Method testElement | |
* | |
* @param aElement | |
* - Object | |
* @return boolean | |
*/ | |
private boolean testElement(Object aElement) { | |
if (aElement instanceof R4EUIReviewExtended) { | |
if (null != ((R4EUIReviewExtended) aElement).getPreviousPhase()) { | |
return true; | |
} | |
} else if (aElement instanceof R4EUIReviewBasic) { | |
if (((R4EUIReviewBasic) aElement).isOpen() | |
&& ((R4EReviewState) ((R4EUIReviewBasic) aElement).getReview().getState()).getState().equals( | |
R4EReviewPhase.R4E_REVIEW_PHASE_COMPLETED)) { | |
return true; | |
} | |
} else if (aElement instanceof R4EUIAnomalyExtended) { | |
if (null != ((R4EUIAnomalyExtended) aElement).getPreviousState()) { | |
return true; | |
} | |
} | |
return false; | |
} | |
} |