/*
This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along
with this program; if not, see http://www.gnu.org/licenses or write to the Free
Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
*/
package com.servoy.j2db.server.headlessclient.dataui;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.model.Model;
public class FilterBackspaceKeyAttributeModifier extends AttributeModifier {
private static final long serialVersionUID = 2158927362909285334L;
public static final String SCRIPT = "filterBackKey(event)"; //$NON-NLS-1$
public FilterBackspaceKeyAttributeModifier(Model model)
{
super("onKeyDown", true, model); //$NON-NLS-1$
}
protected String newValue(String currentValue, String replacementValue)
{
if (replacementValue == null)
{
return currentValue;
}
else
{
if (currentValue == null || currentValue.trim().length() == 0)
return "return " + replacementValue + ";"; //$NON-NLS-1$ //$NON-NLS-2$
else
return "if (" + replacementValue + ") { " + currentValue + " } else return false;"; //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
}
}
}