bdd108cd72
Deallocate the XTransferable object async using AsyncCallback (that uses Application::PostUserEvent) which executes the callback in a thread-safe way on the main thread. This avoids a deadlock at deallocation so that the XTransferable. Modify AsyncCallback to not hold the SolarMutexGuard because Application::PostUserEvent is considered thread-safe. Document Application::PostUserEvent thread-safety Change-Id: I4237a1cf380e8be66b3eefc393a58bb4853bf4e1 Reviewed-on: https://gerrit.libreoffice.org/31126 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
141 lines
6.0 KiB
C++
141 lines
6.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_DTRANS_SOURCE_WIN32_DTOBJ_XTDATAOBJECT_HXX
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#define INCLUDED_DTRANS_SOURCE_WIN32_DTOBJ_XTDATAOBJECT_HXX
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#include <com/sun/star/datatransfer/XTransferable.hpp>
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#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
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#include "DataFmtTransl.hxx"
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#include "FetcList.hxx"
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#if defined _MSC_VER
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#pragma warning(push,1)
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#endif
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#include <windows.h>
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#include <ole2.h>
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#include <objidl.h>
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#if defined _MSC_VER
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#pragma warning(pop)
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#endif
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/*--------------------------------------------------------------------------
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- the function principle of the windows clipboard:
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a data provider offers all formats he can deliver on the clipboard
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a clipboard client ask for the available formats on the clipboard
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and decides if there is a format he can use
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if there is one, he requests the data in this format
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- This class inherits from IDataObject an so can be placed on the
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OleClipboard. The class wrapps a transferable object which is the
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original DataSource
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- DataFlavors offerd by this transferable will be translated into
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appropriate clipboard formats
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- if the transferable contains text data always text and unicodetext
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will be offered or vice versa
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- text data will be automatically converted between text und unicode text
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- although the transferable may support text in different charsets
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(codepages) only text in one codepage can be offered by the clipboard
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----------------------------------------------------------------------------*/
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class CStgTransferHelper;
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class CXTDataObject : public IDataObject
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{
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public:
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CXTDataObject( const css::uno::Reference< css::uno::XComponentContext >& rxContext,
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const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable );
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virtual ~CXTDataObject();
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// ole interface implementation
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//IUnknown interface methods
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STDMETHODIMP QueryInterface(REFIID iid, LPVOID* ppvObject) override;
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STDMETHODIMP_( ULONG ) AddRef( ) override;
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STDMETHODIMP_( ULONG ) Release( ) override;
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// IDataObject interface methods
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STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ) override;
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STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ) override;
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STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc ) override;
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STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut ) override;
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STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease ) override;
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STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) override;
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STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection ) override;
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STDMETHODIMP DUnadvise( DWORD dwConnection ) override;
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STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise ) override;
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operator IDataObject*( );
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private:
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css::datatransfer::DataFlavor SAL_CALL formatEtcToDataFlavor( const FORMATETC& aFormatEtc ) const;
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void SAL_CALL renderLocaleAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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void SAL_CALL renderUnicodeAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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void SAL_CALL renderAnyDataAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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HRESULT SAL_CALL renderSynthesizedFormatAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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void SAL_CALL renderSynthesizedUnicodeAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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void SAL_CALL renderSynthesizedTextAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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void SAL_CALL renderSynthesizedHtmlAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
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inline void SAL_CALL InitializeFormatEtcContainer( );
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private:
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LONG m_nRefCnt;
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css::uno::Reference< css::datatransfer::XTransferable > m_XTransferable;
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css::uno::Reference< css::uno::XComponentContext> m_XComponentContext;
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CFormatEtcContainer m_FormatEtcContainer;
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bool m_bFormatEtcContainerInitialized;
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CDataFormatTranslator m_DataFormatTranslator;
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CFormatRegistrar m_FormatRegistrar;
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};
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class CEnumFormatEtc : public IEnumFORMATETC
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{
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public:
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CEnumFormatEtc( LPUNKNOWN lpUnkOuter, const CFormatEtcContainer& aFormatEtcContainer );
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virtual ~CEnumFormatEtc() {}
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// IUnknown
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STDMETHODIMP QueryInterface( REFIID iid, LPVOID* ppvObject ) override;
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STDMETHODIMP_( ULONG ) AddRef( ) override;
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STDMETHODIMP_( ULONG ) Release( ) override;
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//IEnumFORMATETC
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STDMETHODIMP Next( ULONG nRequested, LPFORMATETC lpDest, ULONG* lpFetched ) override;
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STDMETHODIMP Skip( ULONG celt ) override;
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STDMETHODIMP Reset( ) override;
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STDMETHODIMP Clone( IEnumFORMATETC** ppenum ) override;
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private:
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LONG m_nRefCnt;
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LPUNKNOWN m_lpUnkOuter;
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CFormatEtcContainer m_FormatEtcContainer;
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};
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typedef CEnumFormatEtc *PCEnumFormatEtc;
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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