/*******************************************************************************
* Copyright (c) 2012 BestSolution.at 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:
* Martin Bluehweis<martin.bluehweis@bestsolution.at> - initial API and implementation
*******************************************************************************/
package at.bestsolution.efxclipse.tooling.jdt.ui.internal.refactoring;
import java.util.HashMap;
import java.util.regex.Pattern;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.ltk.core.refactoring.Change;
import org.eclipse.ltk.core.refactoring.CompositeChange;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.core.refactoring.TextChange;
import org.eclipse.ltk.core.refactoring.TextFileChange;
import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
import org.eclipse.ltk.core.refactoring.participants.DeleteParticipant;
import org.eclipse.search.core.text.TextSearchEngine;
import org.eclipse.search.core.text.TextSearchMatchAccess;
import org.eclipse.search.core.text.TextSearchRequestor;
import org.eclipse.search.ui.text.FileTextSearchScope;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.text.edits.TextEditGroup;
/**
* @author martin
*
*/
public class JFXDeleteParticipant extends DeleteParticipant {
private IFile deletedElement;
/*
* (non-Javadoc)
*
* @see org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant#initialize(java.lang.Object)
*/
@Override
protected boolean initialize( Object element ) {
if ( element instanceof IFile ) {
deletedElement = (IFile) element;
return true;
}
else {
return false;
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant#getName()
*/
@Override
public String getName() {
return "e(fx)clipse JFXDeleteParticipant";
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant#checkConditions(org.eclipse.core.runtime.IProgressMonitor,
* org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext)
*/
@Override
public RefactoringStatus checkConditions( IProgressMonitor pm, CheckConditionsContext context ) throws OperationCanceledException {
return new RefactoringStatus();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant#createChange(org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
public Change createChange( IProgressMonitor pm ) throws CoreException, OperationCanceledException {
final HashMap<Object, Change> changes = new HashMap<Object, Change>();
(deletedElement.getProject()).findMember( deletedElement.getProjectRelativePath() );
if ( deletedElement != null ) {
IResource[] roots = deletedElement.getWorkspace().getRoot().getProjects();
String[] fileNamePatterns = { "*.fxbuild" }; //$NON-NLS-1$
FileTextSearchScope scope = FileTextSearchScope.newSearchScope( roots, fileNamePatterns, false );
String oldType = RefactoringUtil.buildFullyQualifiedName( deletedElement );
Pattern pattern = Pattern.compile( oldType );
TextSearchRequestor collector = new TextSearchRequestor() {
@Override
public boolean acceptPatternMatch( final TextSearchMatchAccess matchAccess ) throws CoreException {
IFile file = matchAccess.getFile();
TextFileChange change = (TextFileChange) changes.get( file );
if ( change == null ) {
TextChange textChange = getTextChange( file ); // an other participant already modified that file?
if ( textChange != null ) {
return false; // don't try to merge changes
}
change = new TextFileChange( file.getName(), file );
change.setEdit( new MultiTextEdit() );
changes.put( file, change );
}
ReplaceEdit edit = new ReplaceEdit( matchAccess.getMatchOffset(), matchAccess.getMatchLength(), "" );
change.addEdit( edit );
change.addTextEditGroup( new TextEditGroup( "Remove type reference", edit ) ); //$NON-NLS-1$
return true;
}
};
TextSearchEngine.create().search( scope, collector, pattern, pm );
}
if ( changes.isEmpty() ) {
return null;
}
CompositeChange result = new CompositeChange( "FX build configuration updates" ); //$NON-NLS-1$
for ( Change change : changes.values() ) {
result.add( change );
}
return result;
}
}