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annotate org.eclipse.jface.text/src/org/eclipse/jface/text/IWidgetTokenOwner.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 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 |
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14 |
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15 module org.eclipse.jface.text.IWidgetTokenOwner; |
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16 |
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17 import org.eclipse.jface.text.IWidgetTokenKeeper; // packageimport |
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18 |
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19 import java.lang.all; |
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20 |
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21 |
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22 /** |
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23 * In order to display information in a temporary window, a widget token must be |
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24 * acquired. The intent behind this concept is that only one temporary window |
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25 * should be presented at any moment in time and also to avoid overlapping |
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26 * temporary windows. This concept is used by the |
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27 * {@link org.eclipse.jface.text.ITextViewer}. |
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28 * <p> |
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29 * In order to provide backward compatibility for clients of |
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30 * <code>IWidgetTokenOwner</code>, extension interfaces are used as a means |
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31 * of evolution. The following extension interfaces exist: |
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32 * <ul> |
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33 * <li>{@link org.eclipse.jface.text.IWidgetTokenOwnerExtension} since version |
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34 * 3.0 introducing priorities when requesting a widget token and thus replacing |
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35 * the non-prioritized scheme.</li> |
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36 * </ul> |
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37 * |
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38 * @see org.eclipse.jface.text.IWidgetTokenOwnerExtension |
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39 * @since 2.0 |
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40 */ |
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41 public interface IWidgetTokenOwner { |
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42 |
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43 /** |
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44 * Requests the widget token from this token owner. Returns |
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45 * <code>true</code> if the token has been acquired or is already owned by |
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46 * the requester. This method is non-blocking. |
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47 * <p> |
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48 * Replaced by |
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49 * {@link IWidgetTokenOwnerExtension#requestWidgetToken(IWidgetTokenKeeper, int)}. |
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50 * |
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51 * @param requester the token requester |
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52 * @return <code>true</code> if requester acquires the token, |
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53 * <code>false</code> otherwise |
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54 */ |
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55 bool requestWidgetToken(IWidgetTokenKeeper requester); |
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56 |
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57 /** |
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58 * The given token keeper releases the token to this |
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59 * token owner. If the token has previously not been held |
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60 * by the given token keeper, nothing happens. This |
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61 * method is non-blocking. |
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62 * |
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63 * @param tokenKeeper the token keeper |
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64 */ |
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65 void releaseWidgetToken(IWidgetTokenKeeper tokenKeeper); |
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66 } |