--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+/*\r
+ * Created on 16.12.2005\r
+ * @author Toni Kalajainen\r
+ */\r
+package org.simantics.utils.ui.dialogs;\r
+\r
+import org.eclipse.jface.dialogs.IDialogConstants;\r
+import org.eclipse.jface.dialogs.MessageDialog;\r
+import org.eclipse.swt.graphics.Image;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.eclipse.swt.widgets.Shell;\r
+import org.simantics.utils.DataContainer;\r
+\r
+\r
+/**\r
+ * Tool for making blocking message dialogs queries from non-UI thread\r
+ * \r
+ * \r
+ */\r
+public class SafeMessageDialog {\r
+\r
+ /** Yes and No buttons */\r
+ public final static String[] YES_NO = new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL };\r
+\r
+ public static Integer doMessageDialog(final String title, final Image image, final String message, final int type,\r
+ final String buttons[], final int defaultIndex) {\r
+ final DataContainer<Integer> result = new DataContainer<Integer>();\r
+ Runnable r = new Runnable() {\r
+ public void run() {\r
+ Shell shell = Display.getCurrent().getActiveShell();\r
+ MessageDialog dialog = new MessageDialog(shell, title, image, message, type, buttons, defaultIndex);\r
+ dialog.open();\r
+ result.set(dialog.getReturnCode());\r
+ }\r
+ };\r
+ Display display = Display.getCurrent();\r
+ if (display == null)\r
+ display = Display.getDefault();\r
+ display.syncExec(r);\r
+\r
+ if (result.get() == null)\r
+ return null;\r
+ return result.get();\r
+ }\r
+\r
+ /**\r
+ * method for asking simple yes/no question in a dialog.\r
+ * \r
+ * @param title the dialog's title, or <code>null</code> if none\r
+ * @param message the message\r
+ * @return true if user pressed OK\r
+ */\r
+ public static boolean openQuestion(String title, String message) {\r
+ Integer result = doMessageDialog(title, null, message, MessageDialog.QUESTION, YES_NO, 0);\r
+ if (result == null)\r
+ return false;\r
+ return result == 0;\r
+ }\r
+\r
+}\r