connectivity/source/inc/calc/CConnection.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <memory>
  23 #include <file/FConnection.hxx>
  24 #include <com/sun/star/frame/XDesktop2.hpp>
  25 #include <com/sun/star/frame/XTerminateListener.hpp>
  26 #include <rtl/ref.hxx>
  27 #include <unotools/closeveto.hxx>
  28
  29 namespace com::sun::star {
  30     namespace sheet { class XSpreadsheetDocument; }
  31 }
  32
  33 namespace utl { class CloseVeto; }
  34
  35
  36 namespace connectivity::calc
  37     {
  38         class ODriver;
  39         class OCalcConnection : public file::OConnection
  40         {
  41             // the spreadsheet document:
  42             css::uno::Reference< css::sheet::XSpreadsheetDocument > m_xDoc;
  43             OUString m_sPassword;
  44             OUString m_aFileName;
  45             oslInterlockedCount m_nDocCount;
  46
  47             class CloseVetoButTerminateListener : public cppu::WeakComponentImplHelper<css::frame::XTerminateListener>
  48             {
  49             private:
  50                 /// close listener that vetoes so nobody else disposes m_xDoc
  51                 std::unique_ptr<utl::CloseVeto> m_pCloseListener;
  52                 /// but also listen to XDesktop and if app is terminating anyway, dispose m_xDoc while
  53                 /// its still possible to do so properly
  54                 css::uno::Reference<css::frame::XDesktop2> m_xDesktop;
  55                 osl::Mutex m_aMutex;
  56             public:
  57                 CloseVetoButTerminateListener()
  58                     : cppu::WeakComponentImplHelper<css::frame::XTerminateListener>(m_aMutex)
  59                 {
  60                 }
  61
  62                 void start(const css::uno::Reference<css::uno::XInterface>& rCloseable,
  63                            const css::uno::Reference<css::frame::XDesktop2>& rDesktop)
  64                 {
  65                     m_xDesktop = rDesktop;
  66                     m_xDesktop->addTerminateListener(this);
  67                     m_pCloseListener.reset(new utl::CloseVeto(rCloseable, true));
  68                 }
  69
  70                 void stop()
  71                 {
  72                     m_pCloseListener.reset();
  73                     if (!m_xDesktop.is())
  74                         return;
  75                     m_xDesktop->removeTerminateListener(this);
  76                     m_xDesktop.clear();
  77                 }
  78
  79                 // XTerminateListener
  80                 virtual void SAL_CALL queryTermination(const css::lang::EventObject& /*rEvent*/) override
  81                 {
  82                 }
  83
  84                 virtual void SAL_CALL notifyTermination(const css::lang::EventObject& /*rEvent*/) override
  85                 {
  86                     stop();
  87                 }
  88
  89                 virtual void SAL_CALL disposing() override
  90                 {
  91                     stop();
  92                     cppu::WeakComponentImplHelperBase::disposing();
  93                 }
  94
  95                 virtual void SAL_CALL disposing(const css::lang::EventObject& rEvent) override
  96                 {
  97                     const bool bShutDown = (rEvent.Source == m_xDesktop);
  98                     if (bShutDown)
  99                         stop();
 100                 }
 101             };
 102
 103             rtl::Reference<CloseVetoButTerminateListener> m_xCloseVetoButTerminateListener;
 104
 105         public:
 106             OCalcConnection(ODriver* _pDriver);
 107             virtual ~OCalcConnection() override;
 108
 109             virtual void construct(const OUString& _rUrl,
 110                                    const css::uno::Sequence< css::beans::PropertyValue >& _rInfo ) override;
 111
 112             // XServiceInfo
 113             DECLARE_SERVICE_INFO();
 114
 115             // OComponentHelper
 116             virtual void SAL_CALL disposing() override;
 117
 118             // XConnection
 119             virtual css::uno::Reference< css::sdbc::XDatabaseMetaData > SAL_CALL getMetaData(  ) override;
 120             virtual css::uno::Reference< css::sdbcx::XTablesSupplier > createCatalog() override;
 121             virtual css::uno::Reference< css::sdbc::XStatement > SAL_CALL createStatement(  ) override;
 122             virtual css::uno::Reference< css::sdbc::XPreparedStatement > SAL_CALL prepareStatement( const OUString& sql ) override;
 123             virtual css::uno::Reference< css::sdbc::XPreparedStatement > SAL_CALL prepareCall( const OUString& sql ) override;
 124
 125             // no interface methods
 126             css::uno::Reference< css::sheet::XSpreadsheetDocument> const & acquireDoc();
 127             void releaseDoc();
 128
 129             class ODocHolder
 130             {
 131                 OCalcConnection* m_pConnection;
 132                 css::uno::Reference< css::sheet::XSpreadsheetDocument> m_xDoc;
 133             public:
 134                 ODocHolder(OCalcConnection* _pConnection) : m_pConnection(_pConnection)
 135                 {
 136                     m_xDoc = m_pConnection->acquireDoc();
 137                 }
 138                 ~ODocHolder()
 139                 {
 140                     m_xDoc.clear();
 141                     m_pConnection->releaseDoc();
 142                 }
 143                 const css::uno::Reference< css::sheet::XSpreadsheetDocument>& getDoc() const { return m_xDoc; }
 144             };
 145         };
 146
 147 }
 148
 149 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */