DialogHelper.java

package org.eclipse.xtext.example.fowlerdsl.diagram.helper;

import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;

public class DialogHelper {

	public static String askString(String dialogTitle, String dialogMessage, String initialValue) {
		String ret = null;
		Shell shell = getShell();
		InputDialog inputDialog = new InputDialog(shell, dialogTitle, dialogMessage, initialValue, null);
		int retDialog = inputDialog.open();
		if (retDialog == Window.OK) {
			ret = inputDialog.getValue();
		}
		return ret;
	}
	
	private static Shell getShell() {
		return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
	}
}