/* -*- 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 <memory>

#include <mutex>

#include <unotools/resmgr.hxx>

#include <vcl/svapp.hxx>

#include <vcl/vclenum.hxx>

#include <tools/debug.hxx>

#include <vcl/weld/MessageDialog.hxx>

#include <basic/sbstar.hxx>

#include <basic/basrdll.hxx>

#include <strings.hrc>

#include <sbxbase.hxx>

#include <config_features.h>

namespace

{

struct BasicDLLImpl : public SvRefBase

{

    bool        bDebugMode;

    bool        bBreakEnabled;

    SbxAppData aSbxAppData;

    BasicDLLImpl()

        : bDebugMode(false)

        , bBreakEnabled(true)

    { }

    static BasicDLLImpl* BASIC_DLL;

    static std::mutex& getMutex()

    {

        static std::mutex aMutex;

        return aMutex;

    }

};

BasicDLLImpl* BasicDLLImpl::BASIC_DLL = nullptr;

}

BasicDLL::BasicDLL()

{

    std::scoped_lock aGuard(BasicDLLImpl::getMutex());

    if (!BasicDLLImpl::BASIC_DLL)

        BasicDLLImpl::BASIC_DLL = new BasicDLLImpl;

    m_xImpl = BasicDLLImpl::BASIC_DLL;

}

BasicDLL::~BasicDLL()

{

    std::scoped_lock aGuard(BasicDLLImpl::getMutex());

    const bool bLastRef = m_xImpl->GetRefCount() == 1;

    if (bLastRef) {

        BasicDLLImpl::BASIC_DLL->aSbxAppData.m_aGlobErr.clear();

    }

    m_xImpl.clear();

    // only reset BASIC_DLL after the object had been destroyed

    if (bLastRef)

        BasicDLLImpl::BASIC_DLL = nullptr;

}

void BasicDLL::EnableBreak( bool bEnable )

{

    DBG_ASSERT( BasicDLLImpl::BASIC_DLL, "BasicDLL::EnableBreak: No instance yet!" );

    if (BasicDLLImpl::BASIC_DLL)

    {

        BasicDLLImpl::BASIC_DLL->bBreakEnabled = bEnable;

    }

}

void BasicDLL::SetDebugMode( bool bDebugMode )

{

    DBG_ASSERT( BasicDLLImpl::BASIC_DLL, "BasicDLL::EnableBreak: No instance yet!" );

    if (BasicDLLImpl::BASIC_DLL)

    {

        BasicDLLImpl::BASIC_DLL->bDebugMode = bDebugMode;

    }

}

void BasicDLL::BasicBreak()

{

    DBG_ASSERT( BasicDLLImpl::BASIC_DLL, "BasicDLL::EnableBreak: No instance yet!" );

#if HAVE_FEATURE_SCRIPTING

    if (!BasicDLLImpl::BASIC_DLL)

        return;

    // bJustStopping: if there's someone pressing STOP like crazy umpteen times,

    // but the Basic doesn't stop early enough, the box might appear more often...

    static bool bJustStopping = false;

    if (StarBASIC::IsRunning() && !bJustStopping

        && (BasicDLLImpl::BASIC_DLL->bBreakEnabled || BasicDLLImpl::BASIC_DLL->bDebugMode))

    {

        bJustStopping = true;

        StarBASIC::Stop();

        std::unique_ptr<weld::MessageDialog> xInfoBox(Application::CreateMessageDialog(nullptr,

                                                      VclMessageType::Info, VclButtonsType::Ok,

                                                      BasResId(IDS_SBERR_TERMINATED)));

        xInfoBox->run();

        bJustStopping = false;

    }

#endif

}

SbxAppData& GetSbxData_Impl()

{

    return BasicDLLImpl::BASIC_DLL->aSbxAppData;

}

bool IsSbxData_Impl()

{

    return BasicDLLImpl::BASIC_DLL;

}

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