/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
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;
static public boolean Show( XComponentContext xContext, WikiDialog aWikiDialog )
{
MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( aWikiDialog );
return GetCallback( xContext, aExecutor );
}
static public boolean Execute( XComponentContext xContext, XDialog xDialog )
{
MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( xDialog );
return GetCallback( xContext, aExecutor );
}
static public boolean Execute( XComponentContext xContext, XMessageBox xMessageBox )
{
MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( xMessageBox );
return GetCallback( xContext, aExecutor );
}
static public boolean Close( XComponentContext xContext, XDialog xDialog )
{
MainThreadDialogExecutor aExecutor = new MainThreadDialogExecutor( xDialog, true );
return GetCallback( xContext, aExecutor );
}
static private boolean GetCallback( XComponentContext xContext, MainThreadDialogExecutor aExecutor )
{
try
{
if ( aExecutor != null )
{
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 = (XRequestCallback)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( XDialog xDialog, boolean bClose )
{
m_xDialog = xDialog;
m_bClose = true;
m_bCalled = true; // no yielding, asynchronous closing
}
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.MessageBoxCommand.OK
|| nRes == com.sun.star.awt.MessageBoxCommand.YES );
}
m_bCalled = true;
}
};