text: /**************************************************************
   * 
   * 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.
   * 
   *************************************************************/
  
  
  
  // MARKER(update_precomp.py): autogen include statement, do not remove
  #include "precompiled_toolkit.hxx"
  
  #include "vcl/svapp.hxx"
  #include "vos/mutex.hxx"
  #include "sal/config.h"
  #include "cppuhelper/factory.hxx"
  #include "cppuhelper/implementationentry.hxx"
  #include "cppuhelper/implbase2.hxx"
  #include "com/sun/star/lang/XServiceInfo.hpp"
  #include "com/sun/star/awt/XRequestCallback.hpp"
  
  
  // component helper namespace
  namespace comp_AsyncCallback {
  
  namespace css = ::com::sun::star;
  
  // component and service helper functions:
  ::rtl::OUString SAL_CALL _getImplementationName();
  css::uno::Sequence< ::rtl::OUString > SAL_CALL _getSupportedServiceNames();
  css::uno::Reference< css::uno::XInterface > SAL_CALL _create( css::uno::Reference< css::uno::XComponentContext > const & context );
  
  } // closing component helper namespace
  
  
  
  /// anonymous implementation namespace
  namespace {
  
  namespace css = ::com::sun::star;
  
  class AsyncCallback:
      public ::cppu::WeakImplHelper2<
          css::lang::XServiceInfo,
          css::awt::XRequestCallback>
  {
  public:
      explicit AsyncCallback(css::uno::Reference< css::uno::XComponentContext > const & context);
  
      // ::com::sun::star::lang::XServiceInfo:
      virtual ::rtl::OUString SAL_CALL getImplementationName() throw (css::uno::RuntimeException);
      virtual ::sal_Bool SAL_CALL supportsService(const ::rtl::OUString & ServiceName) throw (css::uno::RuntimeException);
      virtual css::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames() throw (css::uno::RuntimeException);
  
      // ::com::sun::star::awt::XRequestCallback:
      virtual void SAL_CALL addCallback(const css::uno::Reference< css::awt::XCallback > & xCallback, const ::com::sun::star::uno::Any & aData) throw (css::uno::RuntimeException);
  
  private:
  
      struct CallbackData
      {
          CallbackData( const css::uno::Reference< css::awt::XCallback >& rCallback, const css::uno::Any& rAny ) :
              xCallback( rCallback ), aData( rAny ) {}
          
          css::uno::Reference< css::awt::XCallback > xCallback;
          css::uno::Any                              aData;
      };
    
      DECL_STATIC_LINK( AsyncCallback, Notify_Impl, CallbackData* );
      
      AsyncCallback(AsyncCallback &); // not defined
      void operator =(AsyncCallback &); // not defined
  
      virtual ~AsyncCallback() {}
  
      css::uno::Reference< css::uno::XComponentContext > m_xContext;
  };
  
  AsyncCallback::AsyncCallback(css::uno::Reference< css::uno::XComponentContext > const & context) :
      m_xContext(context)
  {}
  
  // com.sun.star.uno.XServiceInfo:
  ::rtl::OUString SAL_CALL AsyncCallback::getImplementationName() throw (css::uno::RuntimeException)
  {
      return comp_AsyncCallback::_getImplementationName();
  }
  
  ::sal_Bool SAL_CALL AsyncCallback::supportsService(::rtl::OUString const & serviceName) throw (css::uno::RuntimeException)
  {
      const css::uno::Sequence< ::rtl::OUString > serviceNames = comp_AsyncCallback::_getSupportedServiceNames();
      for (::sal_Int32 i = 0; i < serviceNames.getLength(); ++i) {
          if (serviceNames[i] == serviceName)
              return sal_True;
      }
      return sal_False;
  }
  
  css::uno::Sequence< ::rtl::OUString > SAL_CALL AsyncCallback::getSupportedServiceNames() throw (css::uno::RuntimeException)
  {
      return comp_AsyncCallback::_getSupportedServiceNames();
  }
  
  // ::com::sun::star::awt::XRequestCallback:
  void SAL_CALL AsyncCallback::addCallback(const css::uno::Reference< css::awt::XCallback > & xCallback, const ::com::sun::star::uno::Any & aData) throw (css::uno::RuntimeException)
  {
      if ( Application::IsInMain() )
      {
          osl::Guard< vos::IMutex > aSolarGuard( Application::GetSolarMutex() );
          CallbackData* pCallbackData = new CallbackData( xCallback, aData );
          Application::PostUserEvent( STATIC_LINK( this, AsyncCallback, Notify_Impl ), pCallbackData );
      }
  }
  
  // private asynchronous link to call reference to the callback object
  IMPL_STATIC_LINK_NOINSTANCE( AsyncCallback, Notify_Impl, CallbackData*, pCallbackData )
  {
      try
      {
          // Asynchronous execution
          // Check pointer and reference before!
          if ( pCallbackData && pCallbackData->xCallback.is() )
              pCallbackData->xCallback->notify( pCallbackData->aData );
      }
      catch ( css::uno::Exception& )
      {
      }
      
      delete pCallbackData;
      return 0;
  }
  
  } // closing anonymous implementation namespace
  
  
  
  // component helper namespace
  namespace comp_AsyncCallback {
  
  ::rtl::OUString SAL_CALL _getImplementationName() {
      return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
          "com.sun.star.awt.comp.AsyncCallback"));
  }
  
  css::uno::Sequence< ::rtl::OUString > SAL_CALL _getSupportedServiceNames()
  {
      css::uno::Sequence< ::rtl::OUString > s(1);
      s[0] = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
          "com.sun.star.awt.AsyncCallback"));
      return s;
  }
  
  css::uno::Reference< css::uno::XInterface > SAL_CALL _create(
      const css::uno::Reference< css::uno::XComponentContext > & context)
          SAL_THROW((css::uno::Exception))
  {
      return static_cast< ::cppu::OWeakObject * >(new AsyncCallback(context));
  }
  
  } // closing component helper namespace
  
  static ::cppu::ImplementationEntry const entries[] = {
      { &comp_AsyncCallback::_create,
        &comp_AsyncCallback::_getImplementationName,
        &comp_AsyncCallback::_getSupportedServiceNames,
        &::cppu::createSingleComponentFactory, 0, 0 },
      { 0, 0, 0, 0, 0, 0 }
  };
  
  void * SAL_CALL comp_AsyncCallback_component_getFactory(
      const char * implName, void * serviceManager, void * registryKey)
  {
      return ::cppu::component_getFactoryHelper(
          implName, serviceManager, registryKey, entries);
  }
  