/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
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*
* Copyright (C) 2006 Mirko Stocker <me@misto.ch>
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.rubypeople.rdt.refactoring.core.renamelocal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Observable;
import java.util.Observer;
import org.jruby.ast.DAsgnNode;
import org.jruby.ast.DVarNode;
import org.jruby.ast.MethodDefNode;
import org.jruby.ast.Node;
import org.rubypeople.rdt.refactoring.editprovider.EditProvider;
import org.rubypeople.rdt.refactoring.editprovider.MultiEditProvider;
import org.rubypeople.rdt.refactoring.util.NodeUtil;
public class RenameLocalEditProvider extends MultiEditProvider implements Observer
{
private static final class AbortOnScope implements IAbortCondition
{
public boolean abort(Node currentNode)
{
return NodeUtil.hasScope(currentNode);
}
}
private static final class AbortOnMethodDef implements IAbortCondition
{
public boolean abort(Node currentNode)
{
return currentNode instanceof MethodDefNode;
}
}
private String selectedVariableName = ""; //$NON-NLS-1$
private String newVariableName = ""; //$NON-NLS-1$
private final RenameLocalConfig config;
public RenameLocalEditProvider(RenameLocalConfig config)
{
this.config = config;
config.setLocalVariablesEditProvider(this);
}
public void setSelectedVariableName(String name)
{
selectedVariableName = name;
}
public String getSelectedVariableName()
{
return selectedVariableName;
}
public void setNewVariableName(String name)
{
newVariableName = name;
}
public String getNewVariableName()
{
return newVariableName;
}
private ArrayList<Node> renameVariables()
{
VariableRenamer renamer = null;
if (config.getSelectedNode() instanceof DVarNode || config.getSelectedNode() instanceof DAsgnNode)
{
renamer = new DynamicVariableRenamer(selectedVariableName, newVariableName, new AbortOnScope());
}
else
{
renamer = new VariableRenamer(selectedVariableName, newVariableName, new AbortOnMethodDef());
}
return renamer.replaceVariableNamesInNode(config.getSelectedMethod(), config.getLocalNames());
}
public void update(Observable subject, Object arg1)
{
if (subject instanceof VariableNameProvider)
{
setSelectedVariableName(((VariableNameProvider) subject).getSelected());
setNewVariableName(((VariableNameProvider) subject).getName());
}
}
@Override
protected Collection<EditProvider> getEditProviders()
{
Collection<EditProvider> edits = new ArrayList<EditProvider>();
for (Node n : renameVariables())
{
edits.add(new SingleLocalVariableEdit(n, config.getLocalNames()));
}
return edits;
}
}