/*
 * $Id$
 *
 * Copyright (c) 2002, 2009, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.interview.wizard;

import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JPanel;
import com.sun.interview.FileFilter;
import com.sun.interview.FileListQuestion;
import com.sun.interview.Question;
import java.io.File;

public class FileListQuestionRenderer
    implements QuestionRenderer
{
    public JComponent getQuestionRendererComponent(Question qq, ActionListener listener) {
	final FileListQuestion q = (FileListQuestion) qq;

	JPanel panel = new JPanel(new BorderLayout());
	panel.setName("flst");
	panel.setFocusable(false);

	JLabel label = new JLabel(i18n.getString("flst.lbl")); 
	label.setName("flst.lbl");
	label.setDisplayedMnemonic(i18n.getString("flst.mne").charAt(0));
	label.setToolTipText(i18n.getString("flst.tip"));
	panel.add(label, BorderLayout.NORTH);

	final FileList list = createFileList("flst", q.getValue());
	list.setDuplicatesAllowed(q.isDuplicatesAllowed());
	list.addListDataListener(new ActionListDataListener(panel, 
							    listener,
							    QuestionRenderer.EDITED));
	list.setBaseDirectory(q.getBaseDirectory());
	label.setLabelFor(list);

	FileFilter[] filters = q.getFilters();
	if (filters == null || filters.length == 0) {
	    list.setFileSelectionMode(JFileChooser.FILES_ONLY);
	}
	else {
	    int mode = -1;
	    for (int i = 0; i < filters.length; i++) {
		FileFilter filter = filters[i];
		list.addFilter(SwingFileFilter.wrap(filter));
		if (filter.acceptsDirectories()) {
		    if (mode == -1){
			// 
			// setting mode to DIRECTORIES_ONLY ignores the possibility
			// that the filter might accept (some) files, so set it to
			// FILES_AND_DIRECTORIES and leave to filter to hide any
			// unacceptable files. 
			// Same issue in FileQuestionRenderer
			mode = JFileChooser.FILES_AND_DIRECTORIES;
		    }
		    else if (mode == JFileChooser.FILES_ONLY)
			mode = JFileChooser.FILES_AND_DIRECTORIES;
		}
		else {
		    if (mode == -1)
			mode = JFileChooser.FILES_ONLY;
		    else if (mode == JFileChooser.DIRECTORIES_ONLY)
			mode = JFileChooser.FILES_AND_DIRECTORIES;
		}
	    }
	    list.setFileSelectionMode(mode);
	}

	panel.add(list, BorderLayout.CENTER);

	Runnable valueSaver = new Runnable() {
	    public void run() {
		q.setValue(list.getFiles());
	    }
	};
	
	panel.putClientProperty(VALUE_SAVER, valueSaver);

	return panel;
    }
    
    protected FileList createFileList(String uiKey, File[] files) {
        return new FileList(uiKey, files);
    }

    public String getInvalidValueMessage(Question q) {
	return null;
    }

    private static final I18NResourceBundle i18n = I18NResourceBundle.getDefaultBundle();
}
