--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/IWidgetTokenOwner.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+
+
+module org.eclipse.jface.text.IWidgetTokenOwner;
+
+import org.eclipse.jface.text.IWidgetTokenKeeper; // packageimport
+
+import java.lang.all;
+
+
+/**
+ * In order to display information in a temporary window, a widget token must be
+ * acquired. The intent behind this concept is that only one temporary window
+ * should be presented at any moment in time and also to avoid overlapping
+ * temporary windows. This concept is used by the
+ * {@link org.eclipse.jface.text.ITextViewer}.
+ * <p>
+ * In order to provide backward compatibility for clients of
+ * <code>IWidgetTokenOwner</code>, extension interfaces are used as a means
+ * of evolution. The following extension interfaces exist:
+ * <ul>
+ * <li>{@link org.eclipse.jface.text.IWidgetTokenOwnerExtension} since version
+ * 3.0 introducing priorities when requesting a widget token and thus replacing
+ * the non-prioritized scheme.</li>
+ * </ul>
+ *
+ * @see org.eclipse.jface.text.IWidgetTokenOwnerExtension
+ * @since 2.0
+ */
+public interface IWidgetTokenOwner {
+
+    /**
+     * Requests the widget token from this token owner. Returns
+     * <code>true</code> if the token has been acquired or is already owned by
+     * the requester. This method is non-blocking.
+     * <p>
+     * Replaced by
+     * {@link IWidgetTokenOwnerExtension#requestWidgetToken(IWidgetTokenKeeper, int)}.
+     *
+     * @param requester the token requester
+     * @return <code>true</code> if requester acquires the token,
+     *         <code>false</code> otherwise
+     */
+    bool requestWidgetToken(IWidgetTokenKeeper requester);
+
+    /**
+     * The given token keeper releases the token to this
+     * token owner. If the token has previously not been held
+     * by the given token keeper, nothing happens. This
+     * method is non-blocking.
+     *
+     * @param tokenKeeper the token keeper
+     */
+    void releaseWidgetToken(IWidgetTokenKeeper tokenKeeper);
+}