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| -rw-r--r-- | extensions/source/ole/oleobjw.hxx | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/extensions/source/ole/oleobjw.hxx b/extensions/source/ole/oleobjw.hxx new file mode 100644 index 000000000..d1a1d0ed8 --- /dev/null +++ b/extensions/source/ole/oleobjw.hxx @@ -0,0 +1,244 @@ +/* -*- 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 . + */ + +#pragma once + +#include "ole2uno.hxx" +#include "wincrap.hxx" + +#include <string_view> +#include <unordered_map> +#include <vector> + +#include <cppuhelper/implbase.hxx> + +#include <com/sun/star/lang/XInitialization.hpp> +#include <com/sun/star/bridge/oleautomation/XAutomationObject.hpp> +#include <com/sun/star/script/XAutomationInvocation.hpp> +#include <rtl/ustring.hxx> + +#include <com/sun/star/script/XDefaultProperty.hpp> +#include <com/sun/star/script/XDefaultMethod.hpp> +#include <com/sun/star/script/XDirectInvocation.hpp> + +#include <typelib/typedescription.hxx> +#include "unoconversionutilities.hxx" +#include "windata.hxx" +using namespace cppu; +using namespace com::sun::star::lang; +using namespace com::sun::star::bridge; +using namespace com::sun::star::bridge::oleautomation; + +typedef std::unordered_map<OUString, std::pair<DISPID, unsigned short>> DispIdMap; + +typedef std::unordered_multimap<OUString, unsigned int> TLBFuncIndexMap; + +// This class wraps an IDispatch and maps XInvocation calls to IDispatch calls on the wrapped object. +// If m_TypeDescription is set then this class represents a UNO interface implemented in a COM component. +// The interface is not a real interface in terms of an abstract class but is realized through IDispatch. +class IUnknownWrapper : public WeakImplHelper< XBridgeSupplier2, XInitialization, XAutomationObject, XDefaultProperty, XDefaultMethod, XDirectInvocation, XAutomationInvocation >, + + public UnoConversionUtilities<IUnknownWrapper> + +{ +public: + IUnknownWrapper(Reference<XMultiServiceFactory> const &xFactory, + sal_uInt8 unoWrapperClass, sal_uInt8 comWrapperClass); + + ~IUnknownWrapper() override; + + //XInterface + Any SAL_CALL queryInterface(const Type& t) override; + + // XInvokation + virtual Reference< XIntrospectionAccess > SAL_CALL getIntrospection( ) override; + virtual Any SAL_CALL invoke( const OUString& aFunctionName, + const Sequence< Any >& aParams, + Sequence< sal_Int16 >& aOutParamIndex, + Sequence< Any >& aOutParam ) override; + virtual void SAL_CALL setValue( const OUString& aPropertyName, + const Any& aValue ) override; + virtual Any SAL_CALL getValue( const OUString& aPropertyName ) override; + virtual sal_Bool SAL_CALL hasMethod( const OUString& aName ) override; + virtual sal_Bool SAL_CALL hasProperty( const OUString& aName ) override; + + // XBridgeSupplier2 + // This interface is implemented to provide a safe way to obtain the original + // IUnknown or IDispatch within the function anyToVariant. The function asks + // every UNO object for its XBridgeSupplier2 and if it is available uses it to convert + // the object with its own supplier. + virtual Any SAL_CALL createBridge( const Any& modelDepObject, + const Sequence< sal_Int8 >& aProcessId, + sal_Int16 sourceModelType, + sal_Int16 destModelType ) override; + + // XInitialization + virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) override; + + // XDefaultProperty + virtual OUString SAL_CALL getDefaultPropertyName( ) override { return m_sDefaultMember; } + + // XDefaultMethod + virtual OUString SAL_CALL getDefaultMethodName( ) override { return m_sDefaultMember; } + + virtual css::uno::Any SAL_CALL invokeGetProperty( const OUString& aFunctionName, const css::uno::Sequence< css::uno::Any >& aParams, css::uno::Sequence< ::sal_Int16 >& aOutParamIndex, css::uno::Sequence< css::uno::Any >& aOutParam ) override; + virtual css::uno::Any SAL_CALL invokePutProperty( const OUString& aFunctionName, const css::uno::Sequence< css::uno::Any >& aParams, css::uno::Sequence< ::sal_Int16 >& aOutParamIndex, css::uno::Sequence< css::uno::Any >& aOutParam ) override; + + // XDirectInvocation + virtual css::uno::Any SAL_CALL directInvoke( const OUString& aName, const css::uno::Sequence< css::uno::Any >& aParams ) override; + virtual sal_Bool SAL_CALL hasMember( const OUString& aName ) override; + + + Any invokeWithDispIdComTlb(FuncDesc& aFuncDesc, + const OUString& sFuncName, + const Sequence< Any >& Params, + Sequence< sal_Int16 >& OutParamIndex, + Sequence< Any >& OutParam); + + +protected: + + virtual Any invokeWithDispIdUnoTlb(const OUString& sFunctionName, + const Sequence< Any >& Params, + Sequence<sal_Int16 >& OutParamIndex, + Sequence< Any >& OutParam); + // Is used for OleObjectFactory service + virtual Any invokeWithDispIdComTlb(const OUString& sFuncName, + const Sequence< Any >& Params, + Sequence< sal_Int16 >& OutParamIndex, + Sequence< Any >& OutParam); + + // UnoConversionUtilities ------------------------------------------------------------------------------- + virtual Reference<XInterface> createUnoWrapperInstance() override; + virtual Reference<XInterface> createComWrapperInstance() override; + + /**Obtains a FUNCDESC structure for a function. + Fills the FUNCDESC structure if ITypeInfo provides information for + the function of name sFuncName or pFuncDesc will not be filled in. + May throw a BridgeRuntimeError. + */ + void getFuncDesc(const OUString & sFuncName, FUNCDESC ** pFuncDesc); + /**Obtains a FUNCDESC structures or a VARDESC structure + for a property. pFuncDescPut may also contain + a structure for a "propertyputref" operation. If pFuncDesc contains a + "put ref" or "put" FUNCDESC depends on what was found first in the type + description. + Fills the FUNCDESC structure if ITypeInfo provides information for + the respective property functions or the structures will not be filled in. + May throw a BridgeRuntimeError. + */ + void getPropDesc(const OUString & sFuncName, FUNCDESC ** pFuncDescGet, + FUNCDESC** pFuncDescPut, VARDESC ** pVarDesc); + // These functions are for the case if an object of this class wraps an IDispatch + // object that implements UNO interfaces. In that case the member m_seqTypes + // is set through XInitialization::initialize. + void getMethodInfo(std::u16string_view sName, TypeDescription& methodDescription); + // After return attributInfo contains typelib_InterfaceAttributeTypeDescription::pAttributeTypeRef + void getAttributeInfo(std::u16string_view sName, TypeDescription& attributeInfo); + // used by get MethodInfo + TypeDescription getInterfaceMemberDescOfCurrentCall(std::u16string_view sName); + /** Returns always a valid ITypeInfo interface or throws a BridgeRuntimeError. + The returned interface does not need to be AddRef'ed as long as it is locally + used. The interface is kept in the instance of this class. + */ + ITypeInfo* getTypeInfo(); + + /** Returns the DISPID for a function or property name. If true is returned then + id contains a valid DISPID. + */ + + bool getDispid(const OUString& sFuncName, DISPID * id); + + VARTYPE getUserDefinedElementType( ITypeInfo* pTypeInfo, const DWORD nHrefType ); + + /** Gets the element type in a VARIANT like style. E.g. if desc->lptdesc contains + a VT_PTR than it is replaced by VT_BYREF and VT_SAFEARRAY is replaced by VT_ARRAY + If the TYPEDESC describes an SAFEARRAY then varType is a combination of VT_ARRAY + and the element type. + The argument desc must be obtained from FUNCDESC::lprgelemdescParam[i].tdesc where + FUNCDESC was obtained from the ITypeInfo belonging to wrapped IDispatch. + */ + VARTYPE getElementTypeDesc( const TYPEDESC *desc); + /** Iterates over all functions and put the names and indices into the map + m_mapComFunc of type TLBFuncIndexMap. + Call the function every time before accessing the map. + Throws a BridgeRuntimeError on failure. + */ + void buildComTlbIndex(); + + /** Returns a FUNCDESC structure which contains type information about the + current XInvocation::invoke call. The FUNCDESC either describes a method, + a property put or a property get operation. + It uses the types com.sun.star.bridge.oleautomation.PropertyPutArgument + which can be + contained in the sequence of in-arguments of invoke to determine if the call is + a property put or property get operation. + If no adequate FUNCDESC was found, an IllegalArgumentException is thrown. + Therefore it is safe to assume that the returned FUNCDESC* is not NULL. + + @exception IllegalArgumentException + Thrown if no adequate FUNCDESC could be found. + */ + void getFuncDescForInvoke(const OUString & sFuncName, + const Sequence<Any> & seqArgs, FUNCDESC** pFuncDesc); + + // Finds out whether the wrapped IDispatch is a JScript Object. This is + // done by + // asking for the property "_environment". If it has the value "JScript" + // (case insensitive) then the IDispatch is considered a JScript object. + bool isJScriptObject(); + + + // If UNO interfaces are implemented in JScript objects, VB or C++ COM objects + // and those are passed as parameter to a UNO interface function, then + // the IDispatch* are wrapped by objects of this class. Assuming that the functions + // implemented by the IDispatch object returns another UNO interface then + // it has to be wrapped to this type. But this is only possible if an object of this + // wrapper class knows what type it is represting. The member m_TypeDescription holds this + // information. + // m_TypeDescription is only useful when an object wraps an IDispatch object that implements + // a UNO interface. The value is set during a call to XInitialization::initialize. + Sequence<Type> m_seqTypes; + CComPtr<IUnknown> m_spUnknown; + CComPtr<IDispatch> m_spDispatch; + OUString m_sTypeName; // is "" ( not initialised ), "IDispatch" ( we have no idea ) or "SomeLibrary.SomeTypeName" if we managed to get a type + /** This value is set during XInitialization::initialize. It indicates that the COM interface + was transported as VT_DISPATCH in a VARIANT rather than a VT_UNKNOWN + */ + bool m_bOriginalDispatch; + DispIdMap m_dispIdMap; + Reference<XIdlClass>* m_pxIdlClass; + + + // used by isJScriptObject + enum JScriptDetermination{ JScriptUndefined=0, NoJScript, IsJScript}; + JScriptDetermination m_eJScript; + // The map is filled by buildComTlbIndex + // It maps Uno Function names to an index which is used in ITypeInfo::GetFuncDesc + TLBFuncIndexMap m_mapComFunc; + // used for synchronizing the computation of the content for m_mapComFunc + bool m_bComTlbIndexInit; + // Keeps the ITypeInfo obtained from IDispatch::GetTypeInfo + CComPtr< ITypeInfo > m_spTypeInfo; + OUString m_sDefaultMember; + bool m_bHasDfltMethod; + bool m_bHasDfltProperty; +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |