# Cppcheck report - LibreOffice: toolkit/source/awt/asynccallback.cxx

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    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * 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 .
     */

    #include <sal/config.h>

    #include <boost/noncopyable.hpp>
    #include "vcl/svapp.hxx"
    #include "osl/mutex.hxx"
    #include "cppuhelper/factory.hxx"
    #include "cppuhelper/implementationentry.hxx"
    #include "cppuhelper/implbase2.hxx"
    #include <cppuhelper/supportsservice.hxx>
    #include "com/sun/star/lang/XServiceInfo.hpp"
    #include <com/sun/star/uno/XComponentContext.hpp>
    #include "com/sun/star/awt/XRequestCallback.hpp"

    /// anonymous implementation namespace
    namespace {

    class AsyncCallback:
        public ::cppu::WeakImplHelper2<
            css::lang::XServiceInfo,
            css::awt::XRequestCallback>,
        private boost::noncopyable
    {
    public:
        AsyncCallback() {}

        // ::com::sun::star::lang::XServiceInfo:
        virtual OUString SAL_CALL getImplementationName() throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual sal_Bool SAL_CALL supportsService(const OUString & ServiceName) throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;

        // ::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, std::exception) SAL_OVERRIDE;

    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* );

        virtual ~AsyncCallback() {}
    };

    // com.sun.star.uno.XServiceInfo:
    OUString SAL_CALL AsyncCallback::getImplementationName() throw (css::uno::RuntimeException, std::exception)
    {
        return OUString("com.sun.star.awt.comp.AsyncCallback");
    }

    sal_Bool SAL_CALL AsyncCallback::supportsService(OUString const & serviceName) throw (css::uno::RuntimeException, std::exception)
    {
        return cppu::supportsService(this, serviceName);
    }

    css::uno::Sequence< OUString > SAL_CALL AsyncCallback::getSupportedServiceNames() throw (css::uno::RuntimeException, std::exception)
    {
        css::uno::Sequence< OUString > s(1);
        s[0] = "com.sun.star.awt.AsyncCallback";
        return s;
    }

    // ::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, std::exception)
    {
        if ( Application::IsInMain() )
        {
            SolarMutexGuard aSolarGuard;

            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

    extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
    com_sun_star_awt_comp_AsyncCallback_get_implementation(<--- The function 'com_sun_star_awt_comp_AsyncCallback_get_implementation' is never used.
        css::uno::XComponentContext *,
        css::uno::Sequence<css::uno::Any> const &)
    {
        return cppu::acquire(new AsyncCallback());
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */