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Diffstat (limited to 'include/comphelper/componentcontext.hxx')
-rw-r--r-- | include/comphelper/componentcontext.hxx | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/include/comphelper/componentcontext.hxx b/include/comphelper/componentcontext.hxx new file mode 100644 index 000000000000..d6461502be54 --- /dev/null +++ b/include/comphelper/componentcontext.hxx @@ -0,0 +1,243 @@ +/* -*- 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 . + */ + +#ifndef COMPHELPER_COMPONENTCONTEXT_HXX +#define COMPHELPER_COMPONENTCONTEXT_HXX + +#include <comphelper/comphelperdllapi.h> + +#include <com/sun/star/uno/XComponentContext.hpp> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> + +//........................................................................ +namespace comphelper +{ +//........................................................................ + + //==================================================================== + //= ComponentContext + //==================================================================== + /** a helper class for working with a component context + */ + class COMPHELPER_DLLPUBLIC ComponentContext + { + private: + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > m_xContext; + ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiComponentFactory > m_xORB; + + public: + /** constructs an instance + @param _rxContext + the component context to manage + @throws ::com::sun::star::lang::NullPointerException + if the given context, or its component factory, are <NULL/> + */ + ComponentContext( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext ); + + /** constructs an instance + @param _rxLegacyFactory + the legacy service factor to obtain the <type scope="com::sun::star::uno">XComponentContext</type> from + @throws ::com::sun::star::uno::RuntimeException + if the given factory or does not have a DefaultContext property to obtain + a component context + @throws ::com::sun::star::lang::NullPointerException + if the given factory is <NULL/>, or provides a component context being <NULL/>, or provides + a component context whose component factory is <NULL/> + */ + ComponentContext( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& _rxLegacyFactory ); + + /** returns the ->XComponentContext interface + */ + inline ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > + getUNOContext() const { return m_xContext; } + + /** determines whether the context is not <NULL/> + */ + inline sal_Bool is() const + { + return m_xContext.is(); + } + + /** creates a component using our component factory/context + @throws ::com::sun::star::uno::Exception + @return + <TRUE/> if and only if the component could be successfully created + */ + template < typename INTERFACE > + bool createComponent( const OUString& _rServiceName, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const + { + _out_rxComponent.clear(); + _out_rxComponent = _out_rxComponent.query( + m_xORB->createInstanceWithContext( _rServiceName, m_xContext ) + ); + return _out_rxComponent.is(); + } + + /** creates a component using our component factory/context + @throws ::com::sun::star::uno::Exception + @return + <TRUE/> if and only if the component could be successfully created + */ + template < typename INTERFACE > + bool createComponent( const sal_Char* _pAsciiServiceName, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const + { + return createComponent( OUString::createFromAscii( _pAsciiServiceName ), _out_rxComponent ); + } + + /** creates a component using our component factory/context, passing creation arguments + @throws ::com::sun::star::uno::Exception + @return + <TRUE/> if and only if the component could be successfully created + */ + template < typename INTERFACE > + bool createComponentWithArguments( const OUString& _rServiceName, const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const + { + _out_rxComponent.clear(); + _out_rxComponent = _out_rxComponent.query( + m_xORB->createInstanceWithArgumentsAndContext( _rServiceName, _rArguments, m_xContext ) + ); + return _out_rxComponent.is(); + } + + /** creates a component using our component factory/context, passing creation arguments + @throws ::com::sun::star::uno::Exception + @return + <TRUE/> if and only if the component could be successfully created + */ + template < typename INTERFACE > + bool createComponentWithArguments( const sal_Char* _pAsciiServiceName, const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments, ::com::sun::star::uno::Reference< INTERFACE >& _out_rxComponent ) const + { + return createComponentWithArguments( OUString::createFromAscii( _pAsciiServiceName ), _rArguments, _out_rxComponent ); + } + + /** creates a component using our component factory/context + + @throws ::com::sun::star::lang::ServiceNotRegisteredException + if the given service is not registered + @throws Exception + if an exception occurred during creating the component + @return + the newly created component. Is never <NULL/>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponent( const OUString& _rServiceName ) const; + + /** creates a component using our component factory/context + + @throws ::com::sun::star::lang::ServiceNotRegisteredException + if the given service is not registered + @throws Exception + if an exception occurred during creating the component + @return + the newly created component. Is never <NULL/>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponent( const sal_Char* _pAsciiServiceName ) const + { + return createComponent( OUString::createFromAscii( _pAsciiServiceName ) ); + } + + /** creates a component using our component factory/context, passing creation arguments + + @throws ::com::sun::star::lang::ServiceNotRegisteredException + if the given service is not registered + @throws Exception + if an exception occurred during creating the component + @return + the newly created component. Is never <NULL/>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponentWithArguments( + const OUString& _rServiceName, + const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments + ) const; + + /** creates a component using our component factory/context, passing creation arguments + + @throws ::com::sun::star::lang::ServiceNotRegisteredException + if the given service is not registered + @throws Exception + if an exception occurred during creating the component + @return + the newly created component. Is never <NULL/>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > createComponentWithArguments( + const sal_Char* _pAsciiServiceName, + const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments + ) const + { + return createComponentWithArguments( OUString::createFromAscii( _pAsciiServiceName ), _rArguments ); + } + + /** retrieves a singleton instance from the context + + Singletons are collected below the <code>/singletons</code> key in a component context, + so accessing them means retrieving the value under <code>/singletons/<instance_name></code>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > getSingleton( const OUString& _rInstanceName ) const; + + /** retrieves a singleton instance from the context + + Singletons are collected below the <code>/singletons</code> key in a component context, + so accessing them means retrieving the value under <code>/singletons/<instance_name></code>. + */ + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > getSingleton( const sal_Char* _pAsciiInstanceName ) const + { + return getSingleton( OUString::createFromAscii( _pAsciiInstanceName ) ); + } + + /** returns the ->XMultiServiceFactory interface of ->m_xORB, for passing to + older code which does not yet support ->XMultiComponentFactory + @throws ::com::sun::star::uno::RuntimeException + if our our component factory does not support this interface + */ + ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > + getLegacyServiceFactory() const; + + /** retrieves a value from our component context + @param _rName + the name of the value to retrieve + @return + the context value with the given name + @seealso XComponentContext::getValueByName + @seealso getContextValueByAsciiName + */ + ::com::sun::star::uno::Any + getContextValueByName( const OUString& _rName ) const; + + /** retrieves a value from our component context, specified by 8-bit ASCII string + @param _rName + the name of the value to retrieve, as ASCII character string + @return + the context value with the given name + @seealso XComponentContext::getValueByName + @seealso getContextValueByName + */ + inline ::com::sun::star::uno::Any + getContextValueByAsciiName( const sal_Char* _pAsciiName ) const + { + return getContextValueByName( OUString::createFromAscii( _pAsciiName ) ); + } + + }; + +//........................................................................ +} // namespace comphelper +//........................................................................ + +#endif // COMPHELPER_COMPONENTCONTEXT_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |