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/*
* Copyright (c) 2001-2004 Ant-Contrib project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.antcontrib.input;
import java.awt.*;
import javax.swing.*;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.input.InputHandler;
import org.apache.tools.ant.input.InputRequest;
import org.apache.tools.ant.input.MultipleChoiceInputRequest;
/**
* Prompts for user input using a JOptionPane. Developed for use with
* Antelope, migrated to ant-contrib Oct 2003.
*
* @author <a href="mailto:danson@germane-software.com">Dale Anson</a>
* @version $Revision: 1.3 $
* @since Ant 1.5
*/
public class GUIInputHandler implements InputHandler {
private Component parent = null;
public GUIInputHandler() {}
/**
* @param parent the parent component to display the input dialog.
*/
public GUIInputHandler( Component parent ) {
this.parent = parent;
}
/**
* Prompts and requests input. May loop until a valid input has
* been entered.
*/
public void handleInput( InputRequest request ) throws BuildException {
if ( request instanceof MultipleChoiceInputRequest ) {
String prompt = request.getPrompt();
String title = "Select Input";
int optionType = JOptionPane.YES_NO_OPTION;
int messageType = JOptionPane.QUESTION_MESSAGE;
Icon icon = null;
Object[] choices = ( ( MultipleChoiceInputRequest ) request ).getChoices().toArray();
Object initialChoice = null;
do {
Object input = JOptionPane.showInputDialog(parent, prompt,
title, optionType, icon, choices, initialChoice);
if (input == null)
throw new BuildException("User cancelled.");
request.setInput(input.toString());
} while (!request.isInputValid());
}
else {
do {
String input = JOptionPane.showInputDialog( parent, request.getPrompt() );
request.setInput( input );
} while ( !request.isInputValid() );
}
}
}
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