--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/swt/ShellObservableValue.d	Tue Apr 14 11:35:29 2009 +0200
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * Copyright (c) 2007 Matthew Hall 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:
+ *     Matthew Hall - initial API and implementation (bug 207844)
+ *     IBM Corporation - initial API and implementation
+ *     Brad Reynolds - initial API and implementation
+ *     Matthew Hall - bug 212235
+ *******************************************************************************/
+module org.eclipse.jface.internal.databinding.swt.ShellObservableValue;
+
+import java.lang.all;
+
+import org.eclipse.core.databinding.observable.Diffs;
+import org.eclipse.core.databinding.observable.Realm;
+import org.eclipse.core.databinding.observable.value.IObservableValue;
+import org.eclipse.jface.internal.databinding.provisional.swt.AbstractSWTObservableValue;
+import org.eclipse.swt.widgets.Shell;
+
+/**
+ * An {@link IObservableValue} that tracks the text of a Shell.
+ * 
+ * @since 1.2
+ */
+public class ShellObservableValue : AbstractSWTObservableValue {
+
+    private final Shell shell;
+
+    /**
+     * Constructs a ShellObservableValue which tracks the text of the given
+     * Shell.
+     * 
+     * @param shell
+     *            the shell to track
+     */
+    public this(Shell shell) {
+        super(shell);
+        this.shell = shell;
+    }
+
+    /**
+     * Constructs a ShellObservableValue belonging to the given realm, which
+     * tracks the text of the given shell.
+     * 
+     * @param realm
+     *            the realm of the constructed observable
+     * @param shell
+     *            the shell to track
+     */
+    public this(Realm realm, Shell shell) {
+        super(realm, shell);
+        this.shell = shell;
+    }
+
+    protected void doSetValue(Object value) {
+        String oldValue = shell.getText();
+        String newValue = value is null ? "" : value.toString(); //$NON-NLS-1$
+        shell.setText(newValue);
+
+        if (!newValue.opEquals(oldValue)) {
+            fireValueChange(Diffs.createValueDiff(oldValue, newValue));
+        }
+    }
+
+    protected Object doGetValue() {
+        return shell.getText();
+    }
+
+    public Object getValueType() {
+        return String.classinfo;
+    }
+}