UndoManager.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 "UndoManager.hxx"
#include <ChartModel.hxx>
#include <ChartViewHelper.hxx>
 
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/lang/NoSupportException.hpp>
 
#include <framework/undomanagerhelper.hxx>
#include <framework/imutex.hxx>
#include <officecfg/Office/Common.hxx>
#include <svl/undo.hxx>
 
namespace chart
{
 
    using ::com::sun::star::uno::Reference;
    using ::com::sun::star::uno::XInterface;
    using ::com::sun::star::uno::UNO_QUERY;
    using ::com::sun::star::uno::Sequence;
    using ::com::sun::star::lang::DisposedException;
    using ::com::sun::star::document::XUndoManager;
    using ::com::sun::star::document::XUndoAction;
    using ::com::sun::star::document::XUndoManagerListener;
    using ::com::sun::star::lang::NoSupportException;
    using ::com::sun::star::util::XModifyListener;
    using ::com::sun::star::frame::XModel;
 
    namespace impl
    {
        class UndoManager_Impl : public ::framework::IUndoManagerImplementation
        {
        public:
            UndoManager_Impl( UndoManager& i_antiImpl, ::chart::ChartModel& i_parent, ::osl::Mutex& i_mutex )
                :m_rAntiImpl( i_antiImpl )
                ,m_rParent( i_parent )
                ,m_rMutex( i_mutex )
                ,m_bDisposed( false )
                ,m_aUndoHelper( *this )
            {
                m_aUndoManager.SetMaxUndoActionCount(
                    officecfg::Office::Common::Undo::Steps::get());
            }
 
            virtual ~UndoManager_Impl()
            {
            }
 
            ::osl::Mutex&                       getMutex();
            // IUndoManagerImplementation
            virtual SfxUndoManager&             getImplUndoManager() override;
            virtual Reference< XUndoManager >   getThis() override;
 
            // attribute access
            ::chart::ChartModel&                getParent() { return m_rParent; }
            ::framework::UndoManagerHelper&     getUndoHelper() { return m_aUndoHelper; }
 
            // public interface
 
            void    disposing();
 
            void    checkDisposed_lck();
 
        private:
            UndoManager&                        m_rAntiImpl;
            ::chart::ChartModel&                m_rParent;
            ::osl::Mutex&                       m_rMutex;
            bool                                m_bDisposed;
 
            SfxUndoManager                      m_aUndoManager;
            ::framework::UndoManagerHelper      m_aUndoHelper;
        };
 
        ::osl::Mutex& UndoManager_Impl::getMutex()
        {
            return m_rMutex;
        }
 
        SfxUndoManager& UndoManager_Impl::getImplUndoManager()
        {
            return m_aUndoManager;
        }
 
        Reference< XUndoManager > UndoManager_Impl::getThis()
        {
            return &m_rAntiImpl;
        }
 
        void UndoManager_Impl::disposing()
        {
            {
                ::osl::MutexGuard aGuard( m_rMutex );
                m_bDisposed = true;
            }
            m_aUndoHelper.disposing();
        }
 
        void UndoManager_Impl::checkDisposed_lck()
        {
            if ( m_bDisposed )
                throw DisposedException( OUString(), getThis() );
        }
 
        namespace {
 
        class UndoManagerMethodGuard : public ::framework::IMutexGuard
        {
        public:
            explicit UndoManagerMethodGuard( UndoManager_Impl& i_impl )
            {
                ::osl::MutexGuard aGuard( i_impl.getMutex() );
                // throw if the instance is already disposed
                i_impl.checkDisposed_lck();
            }
            virtual ~UndoManagerMethodGuard()
            {
            }
 
            // IMutexGuard
            virtual void clear() override;
            virtual ::framework::IMutex& getGuardedMutex() override;
        };
 
        class DummyMutex : public ::framework::IMutex
        {
        public:
            virtual ~DummyMutex() {}
            virtual void acquire() override { }
            virtual void release() override { }
        };
 
        }
 
        ::framework::IMutex& UndoManagerMethodGuard::getGuardedMutex()
        {
            static DummyMutex s_aDummyMutex;
            return s_aDummyMutex;
        }
 
        void UndoManagerMethodGuard::clear()
        {
            // nothing to do. This interface implementation is a dummy.
        }
    }
 
    using impl::UndoManagerMethodGuard;
 
    UndoManager::UndoManager( ::chart::ChartModel& i_parent, ::osl::Mutex& i_mutex )
        :m_pImpl( new impl::UndoManager_Impl( *this, i_parent, i_mutex ) )
    {
    }
 
    UndoManager::~UndoManager()
    {
    }
 
    void SAL_CALL UndoManager::acquire() noexcept
    {
        m_pImpl->getParent().acquire();
    }
 
    void SAL_CALL UndoManager::release() noexcept
    {
        m_pImpl->getParent().release();
    }
 
    void UndoManager::disposing()
    {
        m_pImpl->disposing();
    }
 
    void SAL_CALL UndoManager::enterUndoContext( const OUString& i_title )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().enterUndoContext( i_title, aGuard );
    }
 
    void SAL_CALL UndoManager::enterHiddenUndoContext(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().enterHiddenUndoContext( aGuard );
    }
 
    void SAL_CALL UndoManager::leaveUndoContext(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().leaveUndoContext( aGuard );
    }
 
    void SAL_CALL UndoManager::addUndoAction( const Reference< XUndoAction >& i_action )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().addUndoAction( i_action, aGuard );
    }
 
    void SAL_CALL UndoManager::undo(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().undo( aGuard );
 
        ChartViewHelper::setViewToDirtyState( &m_pImpl->getParent() );
    }
 
    void SAL_CALL UndoManager::redo(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().redo( aGuard );
 
        ChartViewHelper::setViewToDirtyState( &m_pImpl->getParent() );
    }
 
    sal_Bool SAL_CALL UndoManager::isUndoPossible(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().isUndoPossible();
    }
 
    sal_Bool SAL_CALL UndoManager::isRedoPossible(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().isRedoPossible();
    }
 
    OUString SAL_CALL UndoManager::getCurrentUndoActionTitle(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().getCurrentUndoActionTitle();
    }
 
    OUString SAL_CALL UndoManager::getCurrentRedoActionTitle(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().getCurrentRedoActionTitle();
    }
 
    Sequence< OUString > SAL_CALL UndoManager::getAllUndoActionTitles(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().getAllUndoActionTitles();
    }
 
    Sequence< OUString > SAL_CALL UndoManager::getAllRedoActionTitles(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().getAllRedoActionTitles();
    }
 
    void SAL_CALL UndoManager::clear(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().clear( aGuard );
    }
 
    void SAL_CALL UndoManager::clearRedo(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().clearRedo( aGuard );
    }
 
    void SAL_CALL UndoManager::reset(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().reset( aGuard );
    }
 
    void SAL_CALL UndoManager::addUndoManagerListener( const Reference< XUndoManagerListener >& i_listener )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().addUndoManagerListener( i_listener );
    }
 
    void SAL_CALL UndoManager::removeUndoManagerListener( const Reference< XUndoManagerListener >& i_listener )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().removeUndoManagerListener( i_listener );
    }
 
    void SAL_CALL UndoManager::lock(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().lock();
    }
 
    void SAL_CALL UndoManager::unlock(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().unlock();
    }
 
    sal_Bool SAL_CALL UndoManager::isLocked(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getUndoHelper().isLocked();
    }
 
    Reference< XInterface > SAL_CALL UndoManager::getParent(  )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        return m_pImpl->getParent();
    }
 
    void SAL_CALL UndoManager::setParent( const Reference< XInterface >& )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        throw NoSupportException( OUString(), m_pImpl->getThis() );
    }
 
    void SAL_CALL UndoManager::addModifyListener( const Reference< XModifyListener >& i_listener )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().addModifyListener( i_listener );
    }
 
    void SAL_CALL UndoManager::removeModifyListener( const Reference< XModifyListener >& i_listener )
    {
        UndoManagerMethodGuard aGuard( *m_pImpl );
        m_pImpl->getUndoHelper().removeModifyListener( i_listener );
    }
 
} // namespace chart
 
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