# Cppcheck report - LibreOffice: svtools/source/hatchwindow/documentcloser.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 <com/sun/star/uno/XComponentContext.hpp>
    #include <com/sun/star/util/XCloseBroadcaster.hpp>
    #include <com/sun/star/util/XCloseable.hpp>
    #include <com/sun/star/lang/DisposedException.hpp>
    #include <com/sun/star/lang/IllegalArgumentException.hpp>
    #include <com/sun/star/lang/XComponent.hpp>
    #include <com/sun/star/lang/XServiceInfo.hpp>
    #include <com/sun/star/frame/XFrame.hpp>
    #include <com/sun/star/awt/XVclWindowPeer.hpp>
    #include <comphelper/processfactory.hxx>
    #include <cppuhelper/implbase2.hxx>
    #include <cppuhelper/interfacecontainer.h>
    #include <cppuhelper/supportsservice.hxx>
    #include <osl/mutex.hxx>
    #include <osl/thread.hxx>
    #include <rtl/ref.hxx>
    #include <vcl/svapp.hxx>
    #include <vcl/dialog.hxx>
    #include <tools/link.hxx>
    #include <toolkit/helper/vclunohelper.hxx>

    using namespace ::com::sun::star;

    namespace {

    // the service is implemented as a wrapper to be able to die by refcount
    // the disposing mechanics is required for java related scenarios
    class ODocumentCloser : public ::cppu::WeakImplHelper2< ::com::sun::star::lang::XComponent,
                                                            ::com::sun::star::lang::XServiceInfo >
    {
        ::osl::Mutex m_aMutex;
        ::com::sun::star::uno::Reference< ::com::sun::star::frame::XFrame > m_xFrame;
        ::cppu::OInterfaceContainerHelper* m_pListenersContainer; // list of listeners

        bool m_bDisposed;

    public:
        ODocumentCloser(const css::uno::Sequence< css::uno::Any >& aArguments);
        virtual ~ODocumentCloser();

    // XComponent
        virtual void SAL_CALL dispose() throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual void SAL_CALL addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual void SAL_CALL removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;

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

    class MainThreadFrameCloserRequest
    {
        uno::Reference< frame::XFrame > m_xFrame;

        public:
            MainThreadFrameCloserRequest( const uno::Reference< frame::XFrame >& xFrame )
            : m_xFrame( xFrame )
            {}

            DECL_STATIC_LINK( MainThreadFrameCloserRequest, worker, MainThreadFrameCloserRequest* );

            static void Start( MainThreadFrameCloserRequest* pRequest );
    };

    void MainThreadFrameCloserRequest::Start( MainThreadFrameCloserRequest* pMTRequest )
    {
        if ( pMTRequest )
        {
            if ( Application::GetMainThreadIdentifier() == osl::Thread::getCurrentIdentifier() )
            {
                // this is the main thread
                worker( NULL, pMTRequest );
            }
            else
                Application::PostUserEvent( STATIC_LINK( NULL, MainThreadFrameCloserRequest, worker ), pMTRequest );
        }
    }

    IMPL_STATIC_LINK( MainThreadFrameCloserRequest, worker, MainThreadFrameCloserRequest*, pMTRequest )
    {
        (void) pThis; // unused
        if ( pMTRequest )
        {
            if ( pMTRequest->m_xFrame.is() )
            {
                // this is the main thread, the solar mutex must be locked
                SolarMutexGuard aGuard;

                try
                {
                    uno::Reference< awt::XWindow > xWindow = pMTRequest->m_xFrame->getContainerWindow();
                    uno::Reference< awt::XVclWindowPeer > xWinPeer( xWindow, uno::UNO_QUERY_THROW );

                    xWindow->setVisible( sal_False );

                    // reparent the window
                    xWinPeer->setProperty( OUString( "PluginParent" ),
                                            uno::makeAny( (sal_Int64) 0 ) );

                    vcl::Window* pWindow = VCLUnoHelper::GetWindow( xWindow );
                    if ( pWindow )
                        Dialog::EndAllDialogs( pWindow );
                }
                catch( uno::Exception& )
                {
                    // ignore all the errors
                }

                try
                {
                    uno::Reference< util::XCloseable > xCloseable( pMTRequest->m_xFrame, uno::UNO_QUERY_THROW );
                    xCloseable->close( sal_True );
                }
                catch( uno::Exception& )
                {
                    // ignore all the errors
                }
            }

            delete pMTRequest;
        }

        return 0;
    }

    ODocumentCloser::ODocumentCloser(const css::uno::Sequence< css::uno::Any >& aArguments)
    : m_pListenersContainer( NULL )
    , m_bDisposed( false )
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        if ( !m_refCount )
            throw uno::RuntimeException(); // the object must be refcounted already!

        sal_Int32 nLen = aArguments.getLength();
        if ( nLen != 1 )
            throw lang::IllegalArgumentException(
                            OUString("Wrong count of parameters!" ),
                            uno::Reference< uno::XInterface >(),
                            0 );

        if ( !( aArguments[0] >>= m_xFrame ) || !m_xFrame.is() )
            throw lang::IllegalArgumentException(
                    OUString("Nonempty reference is expected as the first argument!" ),
                    uno::Reference< uno::XInterface >(),
                    0 );
    }

    ODocumentCloser::~ODocumentCloser()
    {
        if ( m_pListenersContainer )
        {
            delete m_pListenersContainer;
            m_pListenersContainer = NULL;
        }
    }

    // XComponent

    void SAL_CALL ODocumentCloser::dispose()
        throw (uno::RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        if ( m_bDisposed )
            throw lang::DisposedException();

           lang::EventObject aSource( static_cast< ::cppu::OWeakObject* >(this) );
        if ( m_pListenersContainer )
            m_pListenersContainer->disposeAndClear( aSource );

        // TODO: trigger a main thread execution to close the frame
        if ( m_xFrame.is() )
        {
            // the created object will be deleted after thread execution
            MainThreadFrameCloserRequest* pCloser = new MainThreadFrameCloserRequest( m_xFrame );
            MainThreadFrameCloserRequest::Start( pCloser );
        }

        m_bDisposed = true;
    }

    void SAL_CALL ODocumentCloser::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
        throw (uno::RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        if ( m_bDisposed )
            throw lang::DisposedException(); // TODO

        if ( !m_pListenersContainer )
            m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutex );

        m_pListenersContainer->addInterface( xListener );
    }

    void SAL_CALL ODocumentCloser::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
        throw (uno::RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        if ( m_pListenersContainer )
            m_pListenersContainer->removeInterface( xListener );
    }

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

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

    uno::Sequence< OUString > SAL_CALL ODocumentCloser::getSupportedServiceNames()
        throw (uno::RuntimeException, std::exception)
    {
        const OUString aServiceName( "com.sun.star.embed.DocumentCloser" );
        return uno::Sequence< OUString >( &aServiceName, 1 );
    }

    }

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

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