/*
 * Copyright (c) 2005-2007 Laf-Widget Kirill Grouchnikov. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *  o Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *     
 *  o Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 *     
 *  o Neither the name of Laf-Widget Kirill Grouchnikov nor the names of 
 *    its contributors may be used to endorse or promote products derived 
 *    from this software without specific prior written permission. 
 *     
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
package org.jvnet.lafwidget.text;

import java.awt.event.*;

import javax.swing.JComponent;
import javax.swing.text.JTextComponent;

import org.jvnet.lafwidget.LafWidgetAdapter;
import org.jvnet.lafwidget.LafWidgetUtilities;

/**
 * Adds "select all on focus gain" behaviour on text components.
 * 
 * @author Kirill Grouchnikov
 */
public class SelectAllOnFocusGainWidget extends LafWidgetAdapter {
	/**
	 * The associated text component.
	 */
	protected JTextComponent textComp;

	/**
	 * The focus listener.
	 */
	protected FocusListener focusListener;

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.jvnet.lafwidget.LafWidgetAdapter#setComponent(javax.swing.JComponent)
	 */
	public void setComponent(JComponent jcomp) {
		super.setComponent(jcomp);

		this.textComp = (JTextComponent) jcomp;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.jvnet.lafwidget.LafWidget#requiresCustomLafSupport()
	 */
	public boolean requiresCustomLafSupport() {
		return false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.jvnet.lafwidget.LafWidgetAdapter#installListeners()
	 */
	public void installListeners() {
		this.focusListener = new FocusAdapter() {
			public void focusGained(FocusEvent e) {
				if (LafWidgetUtilities
						.hasTextFocusSelectAllProperty(SelectAllOnFocusGainWidget.this.textComp))
					SelectAllOnFocusGainWidget.this.textComp.selectAll();
			}
		};
		this.textComp.addFocusListener(this.focusListener);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.jvnet.lafwidget.LafWidgetAdapter#uninstallListeners()
	 */
	public void uninstallListeners() {
		this.textComp.removeFocusListener(this.focusListener);
		this.focusListener = null;
	}
}
