comphelper/source/misc/instancelocker.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 <com/sun/star/lang/XComponent.hpp>
  23 #include <com/sun/star/util/XCloseListener.hpp>
  24 #include <com/sun/star/frame/XTerminateListener.hpp>
  25 #include <com/sun/star/lang/XInitialization.hpp>
  26 #include <com/sun/star/lang/XServiceInfo.hpp>
  27 #include <comphelper/interfacecontainer4.hxx>
  28 #include <cppuhelper/weakref.hxx>
  29 #include <cppuhelper/implbase.hxx>
  30 #include <rtl/ref.hxx>
  31 #include <mutex>
  32
  33 namespace com::sun::star::embed { class XActionsApproval; }
  34
  35
  36 class OLockListener;
  37
  38 // the service is implemented as a wrapper to be able to die by refcount
  39 // the disposing mechanics is required for java related scenarios
  40 class OInstanceLocker : public ::cppu::WeakImplHelper< css::lang::XComponent,
  41                                                        css::lang::XInitialization,
  42                                                        css::lang::XServiceInfo >
  43 {
  44     std::mutex m_aMutex;
  45
  46     rtl::Reference< OLockListener > m_xLockListener;
  47
  48     comphelper::OInterfaceContainerHelper4<css::lang::XEventListener> m_aListenersContainer; // list of listeners
  49
  50     bool m_bDisposed;
  51     bool m_bInitialized;
  52
  53 public:
  54     explicit OInstanceLocker();
  55     virtual ~OInstanceLocker() override;
  56
  57 // XComponent
  58     virtual void SAL_CALL dispose() override;
  59     virtual void SAL_CALL addEventListener( const css::uno::Reference< css::lang::XEventListener >& xListener ) override;
  60     virtual void SAL_CALL removeEventListener( const css::uno::Reference< css::lang::XEventListener >& aListener ) override;
  61
  62 // XInitialization
  63     virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& aArguments ) override;
  64
  65 // XServiceInfo
  66     virtual OUString SAL_CALL getImplementationName(  ) override;
  67     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
  68     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
  69
  70 };
  71
  72
  73 class OLockListener : public ::cppu::WeakImplHelper< css::util::XCloseListener,
  74                                                      css::frame::XTerminateListener >
  75 {
  76     std::mutex m_aMutex;
  77     css::uno::Reference< css::uno::XInterface > m_xInstance;
  78     css::uno::Reference< css::embed::XActionsApproval > m_xApproval;
  79
  80     css::uno::WeakReference< css::lang::XComponent > m_xWrapper;
  81
  82     bool m_bDisposed;
  83     bool m_bInitialized;
  84
  85     sal_Int32 m_nMode;
  86
  87 public:
  88     OLockListener(  css::uno::WeakReference< css::lang::XComponent > xWrapper,
  89                     css::uno::Reference< css::uno::XInterface > xInstance,
  90                     sal_Int32 nMode,
  91                     css::uno::Reference< css::embed::XActionsApproval > xApproval );
  92
  93     virtual ~OLockListener() override;
  94
  95     void Init();
  96     void Dispose();
  97
  98 // XEventListener
  99     virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
 100
 101 // XCloseListener
 102     virtual void SAL_CALL queryClosing( const css::lang::EventObject& Source, sal_Bool GetsOwnership ) override;
 103     virtual void SAL_CALL notifyClosing( const css::lang::EventObject& Source ) override;
 104
 105 // XTerminateListener
 106     virtual void SAL_CALL queryTermination( const css::lang::EventObject& Event ) override;
 107     virtual void SAL_CALL notifyTermination( const css::lang::EventObject& Event ) override;
 108
 109 };
 110
 111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */