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1 /*******************************************************************************
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2 * Copyright (c) 2006 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 dwtx.text.undo.IDocumentUndoListener;
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14
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15 import dwt.dwthelper.utils;
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16
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17
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18 /**
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19 * This interface is used to listen to notifications from a DocumentUndoManager.
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20 * The supplied DocumentUndoEvent describes the particular notification.
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21 * <p>
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22 * Document undo listeners must be prepared to receive notifications from a
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23 * background thread. Any UI access occurring inside the implementation must be
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24 * properly synchronized using the techniques specified by the client's widget
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25 * library.</p>
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26 * <p>
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27 * Clients may implement this interface.
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28 * </p>
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29 *
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30 * @since 3.2
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31 */
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32 public interface IDocumentUndoListener {
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33
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34 /**
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35 * The document is involved in an undo-related change. Notify listeners
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36 * with an event describing the change.
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37 *
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38 * @param event the document undo event that describes the particular notification
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39 */
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40 void documentUndoNotification(DocumentUndoEvent event);
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41
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42 }
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