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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2003 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwt.events.FocusListener;
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14
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15
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16 public import dwt.internal.DWTEventListener;
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17 public import dwt.events.FocusEvent;
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18
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19 /**
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20 * Classes which implement this interface provide methods
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21 * that deal with the events that are generated as controls
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22 * gain and lose focus.
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23 * <p>
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24 * After creating an instance of a class that extends
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25 * this interface it can be added to a control using the
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26 * <code>addFocusListener</code> method and removed using
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27 * the <code>removeFocusListener</code> method. When a
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28 * control gains or loses focus, the appropriate method
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29 * will be invoked.
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30 * </p>
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31 *
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32 * @see FocusAdapter
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33 * @see FocusEvent
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34 */
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35 public interface FocusListener : DWTEventListener {
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36
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37 /**
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38 * Sent when a control gets focus.
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39 *
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40 * @param e an event containing information about the focus change
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41 */
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42 public void focusGained(FocusEvent e);
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43
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44 /**
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45 * Sent when a control loses focus.
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46 *
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47 * @param e an event containing information about the focus change
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48 */
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49 public void focusLost(FocusEvent e);
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50 }
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51
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