diff options
Diffstat (limited to 'shell/source/win32/shlxthandler/prophdl')
| -rw-r--r-- | shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx | 432 | ||||
| -rw-r--r-- | shell/source/win32/shlxthandler/prophdl/propertyhdl.def | 3 |
2 files changed, 435 insertions, 0 deletions
diff --git a/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx b/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx new file mode 100644 index 000000000..5b7121bcf --- /dev/null +++ b/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx @@ -0,0 +1,432 @@ +/* -*- 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 <global.hxx> +#include <propertyhdl.hxx> +#include <fileextensions.hxx> +#include <metainforeader.hxx> +#include <utilities.hxx> +#include <config.hxx> + +#include <propkey.h> +#include <propvarutil.h> +#include <sal/macros.h> + +#include <malloc.h> +#include <strsafe.h> + +#include <stream_helper.hxx> + + +// Module global + +long g_DllRefCnt = 0; +static HINSTANCE g_hModule = nullptr; + +const PROPERTYKEY g_rgPROPERTIES[] = +{ + PKEY_Title, + PKEY_Author, + PKEY_Subject, + PKEY_Keywords, + PKEY_Comment +}; + +size_t const gPropertyTableSize = SAL_N_ELEMENTS(g_rgPROPERTIES); + + +CPropertyHdl::CPropertyHdl( long nRefCnt ) : + m_RefCnt( nRefCnt ), + m_pCache( nullptr ) +{ + OutputDebugStringFormatW( L"CPropertyHdl: CTOR\n" ); + InterlockedIncrement( &g_DllRefCnt ); +} + + +CPropertyHdl::~CPropertyHdl() +{ + if ( m_pCache ) + { + m_pCache->Release(); + m_pCache = nullptr; + } + InterlockedDecrement( &g_DllRefCnt ); +} + + +// IUnknown methods + +HRESULT STDMETHODCALLTYPE CPropertyHdl::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject) +{ + *ppvObject = nullptr; + + if (IID_IUnknown == riid || IID_IPropertyStore == riid) + { + OutputDebugStringFormatW( L"CPropertyHdl: QueryInterface (IID_IPropertyStore)\n" ); + IUnknown* pUnk = static_cast<IPropertyStore*>(this); + pUnk->AddRef(); + *ppvObject = pUnk; + return S_OK; + } + else if (IID_IPropertyStoreCapabilities == riid) + { + OutputDebugStringFormatW( L"CPropertyHdl: QueryInterface (IID_IPropertyStoreCapabilities)\n" ); + IUnknown* pUnk = static_cast<IPropertyStore*>(this); + pUnk->AddRef(); + *ppvObject = pUnk; + return S_OK; + } + else if (IID_IInitializeWithStream == riid) + { + OutputDebugStringFormatW( L"CPropertyHdl: QueryInterface (IID_IInitializeWithStream)\n" ); + IUnknown* pUnk = static_cast<IInitializeWithStream*>(this); + pUnk->AddRef(); + *ppvObject = pUnk; + return S_OK; + } + OutputDebugStringFormatW( L"CPropertyHdl: QueryInterface (something different)\n" ); + + return E_NOINTERFACE; +} + + +ULONG STDMETHODCALLTYPE CPropertyHdl::AddRef() +{ + return InterlockedIncrement( &m_RefCnt ); +} + + +ULONG STDMETHODCALLTYPE CPropertyHdl::Release() +{ + long refcnt = InterlockedDecrement( &m_RefCnt ); + + if ( 0 == m_RefCnt ) + delete this; + + return refcnt; +} + + +// IPropertyStore + +HRESULT STDMETHODCALLTYPE CPropertyHdl::GetCount( DWORD *pcProps ) +{ + HRESULT hr = E_UNEXPECTED; + if ( m_pCache && pcProps ) + { + hr = m_pCache->GetCount( pcProps ); + } + + return hr; +} + + +HRESULT STDMETHODCALLTYPE CPropertyHdl::GetAt( DWORD iProp, PROPERTYKEY *pKey ) +{ + HRESULT hr = E_UNEXPECTED; + if ( m_pCache ) + { + hr = m_pCache->GetAt( iProp, pKey ); + } + + return hr; +} + + +HRESULT STDMETHODCALLTYPE CPropertyHdl::GetValue( REFPROPERTYKEY key, PROPVARIANT *pPropVar ) +{ + HRESULT hr = E_UNEXPECTED; + if ( m_pCache ) + { + hr = m_pCache->GetValue( key, pPropVar ); + } + + return hr; +} + + +HRESULT STDMETHODCALLTYPE +CPropertyHdl::SetValue(REFPROPERTYKEY /*key*/, REFPROPVARIANT /*propVar*/) +{ + HRESULT hr = E_UNEXPECTED; + if ( m_pCache ) + { + hr = STG_E_ACCESSDENIED; + } + return hr; +} + + +HRESULT STDMETHODCALLTYPE CPropertyHdl::Commit() +{ + return S_OK; +} + + +// IPropertyStore + +HRESULT STDMETHODCALLTYPE +CPropertyHdl::IsPropertyWritable(REFPROPERTYKEY /*key*/) +{ + // We start with read only properties only + return S_FALSE; +} + + +// IInitializeWithStream + +HRESULT STDMETHODCALLTYPE CPropertyHdl::Initialize( IStream *pStream, DWORD grfMode ) +{ + if ( grfMode & STGM_READWRITE ) + return STG_E_ACCESSDENIED; + + if ( !m_pCache ) + { + if ( FAILED( PSCreateMemoryPropertyStore( IID_PPV_ARGS( &m_pCache ) ) ) ) + OutputDebugStringFormatW( L"CPropertyHdl::Initialize: PSCreateMemoryPropertyStore failed" ); + + BufferStream tmpStream(pStream); + + CMetaInfoReader *pMetaInfoReader = nullptr; + + try + { + pMetaInfoReader = new CMetaInfoReader( &tmpStream ); + LoadProperties( pMetaInfoReader ); + delete pMetaInfoReader; + } + catch (const std::exception& e) + { + // To output 8-bit string using unicode version of formatting functions, use capital %S type + // see https://msdn.microsoft.com/en-us/library/hf4y5e3w + OutputDebugStringFormatW( L"CPropertyHdl::Initialize: Caught exception [%S]", e.what() ); + return E_FAIL; + } + } + + return S_OK; +} + +namespace { + +HRESULT GetItemData( CMetaInfoReader *pMetaInfoReader, UINT nIndex, PROPVARIANT *pVarData ) +{ + switch (nIndex) { + case 0: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagData( META_INFO_TITLE ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Title=%s.\n", pMetaInfoReader->getTagData( META_INFO_TITLE ).c_str() ); + return S_OK; + } + case 1: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagData( META_INFO_AUTHOR ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Author=%s.\n", pMetaInfoReader->getTagData( META_INFO_AUTHOR ).c_str() ); + return S_OK; + } + case 2: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagData( META_INFO_SUBJECT ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Subject=%s.\n", pMetaInfoReader->getTagData( META_INFO_SUBJECT ).c_str() ); + return S_OK; + } + case 3: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagData( META_INFO_KEYWORDS ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Keywords=%s.\n", pMetaInfoReader->getTagData( META_INFO_KEYWORDS ).c_str() ); + return S_OK; + } + case 4: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagData( META_INFO_DESCRIPTION ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Description=%s.\n", pMetaInfoReader->getTagData( META_INFO_DESCRIPTION ).c_str() ); + return S_OK; + } + case 5: { + pVarData->vt = VT_BSTR; + pVarData->bstrVal = SysAllocString( pMetaInfoReader->getTagAttribute( META_INFO_DOCUMENT_STATISTIC, META_INFO_PAGES ).c_str() ); + OutputDebugStringFormatW( L"CPropertyHdl::GetItemData: Pages=%s.\n", pMetaInfoReader->getTagAttribute( META_INFO_DOCUMENT_STATISTIC, META_INFO_PAGES ).c_str() ); + return S_OK; + } + } + + return S_FALSE; +} + +} + +void CPropertyHdl::LoadProperties( CMetaInfoReader *pMetaInfoReader ) +{ + OutputDebugStringFormatW( L"CPropertyHdl: LoadProperties\n" ); + PROPVARIANT propvarValues; + + for ( UINT i = 0; i < UINT(gPropertyTableSize); ++i ) + { + PropVariantClear( &propvarValues ); + HRESULT hr = GetItemData( pMetaInfoReader, i, &propvarValues); + if (hr == S_OK) + { + // coerce the value(s) to the appropriate type for the property key + hr = PSCoerceToCanonicalValue( g_rgPROPERTIES[i], &propvarValues ); + if (SUCCEEDED(hr)) + { + // cache the value(s) loaded + hr = m_pCache->SetValueAndState( g_rgPROPERTIES[i], &propvarValues, PSC_NORMAL ); + } + } + } +} + +// CClassFactory + + +long CClassFactory::s_ServerLocks = 0; + + +CClassFactory::CClassFactory( const CLSID& clsid ) : + m_RefCnt(1), + m_Clsid(clsid) +{ + InterlockedIncrement( &g_DllRefCnt ); +} + + +CClassFactory::~CClassFactory() +{ + InterlockedDecrement( &g_DllRefCnt ); +} + + +// IUnknown methods + +HRESULT STDMETHODCALLTYPE CClassFactory::QueryInterface( REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject ) +{ + *ppvObject = nullptr; + + if ( IID_IUnknown == riid || IID_IClassFactory == riid ) + { + IUnknown* pUnk = this; + pUnk->AddRef(); + *ppvObject = pUnk; + return S_OK; + } + + return E_NOINTERFACE; +} + + +ULONG STDMETHODCALLTYPE CClassFactory::AddRef() +{ + return InterlockedIncrement( &m_RefCnt ); +} + + +ULONG STDMETHODCALLTYPE CClassFactory::Release() +{ + long refcnt = InterlockedDecrement( &m_RefCnt ); + + if (0 == refcnt) + delete this; + + return refcnt; +} + + +// IClassFactory methods + +HRESULT STDMETHODCALLTYPE CClassFactory::CreateInstance( + IUnknown __RPC_FAR *pUnkOuter, + REFIID riid, + void __RPC_FAR *__RPC_FAR *ppvObject) +{ + if ( pUnkOuter != nullptr ) + return CLASS_E_NOAGGREGATION; + + IUnknown* pUnk = nullptr; + + if ( CLSID_PROPERTY_HANDLER == m_Clsid ) + pUnk = static_cast<IPropertyStore*>( new CPropertyHdl() ); + + if (nullptr == pUnk) + { + return E_OUTOFMEMORY; + } + + HRESULT hr = pUnk->QueryInterface( riid, ppvObject ); + + // if QueryInterface failed the component will destroy itself + pUnk->Release(); + + return hr; +} + + +HRESULT STDMETHODCALLTYPE CClassFactory::LockServer( BOOL fLock ) +{ + if ( fLock ) + InterlockedIncrement( &s_ServerLocks ); + else + InterlockedDecrement( &s_ServerLocks ); + + return S_OK; +} + + +bool CClassFactory::IsLocked() +{ + return ( s_ServerLocks > 0 ); +} + + +STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv) +{ + OutputDebugStringFormatW( L"DllGetClassObject.\n" ); + *ppv = nullptr; + + if ( rclsid != CLSID_PROPERTY_HANDLER ) + return CLASS_E_CLASSNOTAVAILABLE; + + if ( (riid != IID_IUnknown) && (riid != IID_IClassFactory) ) + return E_NOINTERFACE; + + IUnknown* pUnk = new CClassFactory( rclsid ); + *ppv = pUnk; + return S_OK; +} + + +STDAPI DllCanUnloadNow() +{ + OutputDebugStringFormatW( L"DllCanUnloadNow.\n" ); + if (CClassFactory::IsLocked() || g_DllRefCnt > 0) + return S_FALSE; + + return S_OK; +} + + +BOOL WINAPI DllMain( HINSTANCE hInst, ULONG /*ul_reason_for_call*/, LPVOID /*lpReserved*/ ) +{ + OutputDebugStringFormatW( L"DllMain.\n" ); + g_hModule = hInst; + return TRUE; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/shell/source/win32/shlxthandler/prophdl/propertyhdl.def b/shell/source/win32/shlxthandler/prophdl/propertyhdl.def new file mode 100644 index 000000000..22b670b3c --- /dev/null +++ b/shell/source/win32/shlxthandler/prophdl/propertyhdl.def @@ -0,0 +1,3 @@ +EXPORTS
+ DllCanUnloadNow PRIVATE
+ DllGetClassObject PRIVATE
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