1 files changed, 158 insertions, 0 deletions
diff --git a/swext/mediawiki/src/com/sun/star/wiki/MainThreadDialogExecutor.java b/swext/mediawiki/src/com/sun/star/wiki/MainThreadDialogExecutor.java
new file mode 100644
index 000000000..a6ee07fc8
--- /dev/null
+++ b/swext/mediawiki/src/com/sun/star/wiki/MainThreadDialogExecutor.java
@@ -0,0 +1,158 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+package com.sun.star.wiki;
+
+import com.sun.star.uno.Any;
+import com.sun.star.awt.XDialog;
+import com.sun.star.awt.XCallback;
+import com.sun.star.awt.XMessageBox;
+import com.sun.star.awt.XRequestCallback;
+import com.sun.star.lang.XMultiComponentFactory;
+import com.sun.star.uno.UnoRuntime;
+import com.sun.star.uno.XComponentContext;
+
+public class MainThreadDialogExecutor implements XCallback
+{
+    private WikiDialog m_aWikiDialog;
+    private XDialog    m_xDialog;
+    private XMessageBox m_xMessageBox;
+    private boolean    m_bResult = false;
+    private boolean    m_bCalled = false;
+    private boolean    m_bClose = false;
+
+    public static boolean Show( XComponentContext xContext, WikiDialog aWikiDialog )
+    {
+        MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( aWikiDialog );
+        return GetCallback( xContext, aExecutor );
+    }
+
+
+
+    public static boolean Execute( XComponentContext xContext, XMessageBox xMessageBox )
+    {
+        MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( xMessageBox );
+        return GetCallback( xContext, aExecutor );
+    }
+
+    public static boolean Close( XComponentContext xContext, XDialog xDialog )
+    {
+        MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( xDialog );
+        aExecutor.m_bClose = true;
+        aExecutor.m_bCalled = true; // no yielding, asynchronous closing
+        return GetCallback( xContext, aExecutor );
+    }
+
+    private static boolean GetCallback( XComponentContext xContext, MainThreadDialogExecutor aExecutor )
+    {
+        if (aExecutor == null)
+          return false;
+
+        try
+        {
+            String aThreadName = null;
+            Thread aCurThread = Thread.currentThread();
+            if ( aCurThread != null )
+                aThreadName = aCurThread.getName();
+
+            if ( aThreadName != null && aThreadName.equals( "com.sun.star.thread.WikiEditorSendingThread" ) )
+            {
+                // the main thread should be accessed asynchronously
+                XMultiComponentFactory xFactory = xContext.getServiceManager();
+                if ( xFactory == null )
+                    throw new com.sun.star.uno.RuntimeException();
+
+                XRequestCallback xRequest = UnoRuntime.queryInterface(
+                    XRequestCallback.class,
+                    xFactory.createInstanceWithContext( "com.sun.star.awt.AsyncCallback", xContext ) );
+                if ( xRequest != null )
+                {
+                    xRequest.addCallback( aExecutor, Any.VOID );
+                    do
+                    {
+                        Thread.yield();
+                    }
+                    while( !aExecutor.m_bCalled );
+                }
+            }
+            else
+            {
+                // handle it as a main thread
+                aExecutor.notify( Any.VOID );
+            }
+        }
+        catch( Exception e )
+        {
+            e.printStackTrace();
+        }
+
+        return aExecutor.GetResult();
+    }
+
+    private MainThreadDialogExecutor( WikiDialog aWikiDialog )
+    {
+        m_aWikiDialog = aWikiDialog;
+    }
+
+    private MainThreadDialogExecutor( XDialog xDialog )
+    {
+        m_xDialog = xDialog;
+    }
+
+    private MainThreadDialogExecutor( XMessageBox xMessageBox )
+    {
+        m_xMessageBox = xMessageBox;
+    }
+
+    private boolean GetResult()
+    {
+        return m_bResult;
+    }
+
+    public void notify( Object aData )
+    {
+        if ( m_aWikiDialog != null )
+            m_bResult = m_aWikiDialog.show();
+        else if ( m_xDialog != null )
+        {
+            if ( !m_bClose )
+                m_bResult = ( m_xDialog.execute() == 1 );
+            else
+            {
+                try
+                {
+                    m_xDialog.endExecute();
+                }
+                catch( Exception e )
+                {
+                    e.printStackTrace();
+                }
+                m_bResult = true;
+            }
+        }
+        else if ( m_xMessageBox != null )
+        {
+            int nRes = m_xMessageBox.execute();
+            m_bResult = ( nRes == com.sun.star.awt.MessageBoxResults.OK
+                          || nRes == com.sun.star.awt.MessageBoxResults.YES );
+        }
+
+        m_bCalled = true;
+    }
+}
+