--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/text/hyperlink/AbstractHyperlinkDetector.d	Sat Aug 23 19:10:48 2008 +0200
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * Copyright (c) 2007 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 dwtx.jface.text.hyperlink.AbstractHyperlinkDetector;
+
+import dwt.dwthelper.utils;
+
+import dwtx.core.runtime.Assert;
+import dwtx.core.runtime.IAdaptable;
+
+
+/**
+ * A hyperlink detector that can provide adapters through
+ * a context that can be set by the creator of this hyperlink
+ * detector.
+ * <p>
+ * Clients may subclass.
+ * </p>
+ * 
+ * @since 3.3
+ */
+public abstract class AbstractHyperlinkDetector : IHyperlinkDetector, IHyperlinkDetectorExtension {
+
+    /**
+     * The context of this hyperlink detector.
+     */
+    private IAdaptable fContext;
+
+    /**
+     * Sets this hyperlink detector's context which
+     * is responsible to provide the adapters.
+     * 
+     * @param context the context for this hyperlink detector
+     * @throws IllegalArgumentException if the context is <code>null</code>
+     * @throws IllegalStateException if this method is called more than once
+     */
+    public final void setContext(IAdaptable context) throws IllegalStateException, IllegalArgumentException {
+        Assert.isLegal(context !is null);
+        if (fContext !is null)
+            throw new IllegalStateException();
+        fContext= context;
+    }
+
+    /*
+     * @see dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension#dispose()
+     */
+    public void dispose() {
+        fContext= null;
+    }
+
+    /**
+     * Returns an object which is an instance of the given class
+     * and provides additional context for this hyperlink detector.
+     *
+     * @param adapterClass the adapter class to look up
+     * @return an instance that can be cast to the given class, 
+     *          or <code>null</code> if this object does not
+     *          have an adapter for the given class
+     */
+    protected final Object getAdapter(Class adapterClass) {
+        Assert.isLegal(adapterClass !is null);
+        if (fContext !is null)
+            return fContext.getAdapter(adapterClass);
+        return null;
+    }
+
+}