LCOV - code coverage report
Current view: top level - usr/local/src/libreoffice/include/comphelper - componentmodule.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 11 14 78.6 %
Date: 2013-07-09 Functions: 41 46 89.1 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : #ifndef COMPHELPER_INC_COMPHELPER_COMPONENTMODULE_HXX
      20             : #define COMPHELPER_INC_COMPHELPER_COMPONENTMODULE_HXX
      21             : 
      22             : #include <comphelper/comphelperdllapi.h>
      23             : 
      24             : #include <com/sun/star/lang/XSingleServiceFactory.hpp>
      25             : #include <com/sun/star/uno/Sequence.hxx>
      26             : 
      27             : #include <cppuhelper/factory.hxx>
      28             : 
      29             : #include <osl/mutex.hxx>
      30             : 
      31             : #include <rtl/string.hxx>
      32             : #include <rtl/instance.hxx>
      33             : 
      34             : //........................................................................
      35             : namespace comphelper
      36             : {
      37             : //........................................................................
      38             : 
      39             :     /** factory factory declaration
      40             :     */
      41             :     typedef ::com::sun::star::uno::Reference< ::com::sun::star::lang::XSingleComponentFactory > (SAL_CALL *FactoryInstantiation)
      42             :     (
      43             :         ::cppu::ComponentFactoryFunc _pFactoryFunc,
      44             :         OUString const& _rComponentName,
      45             :         ::com::sun::star::uno::Sequence< OUString > const & _rServiceNames,
      46             :         rtl_ModuleCount*
      47             :     ) SAL_THROW(());
      48             : 
      49             :     //=========================================================================
      50             :     //= ComponentDescription
      51             :     //=========================================================================
      52        9693 :     struct COMPHELPER_DLLPUBLIC ComponentDescription
      53             :     {
      54             :         /// the implementation name of the component
      55             :         OUString                                     sImplementationName;
      56             :         /// the services supported by the component implementation
      57             :         ::com::sun::star::uno::Sequence< OUString >  aSupportedServices;
      58             :         /** the name under which the component implementation should be registered as singleton,
      59             :             or empty if the component does not implement a singleton.
      60             :         */
      61             :         OUString                                     sSingletonName;
      62             :         /// the function to create an instance of the component
      63             :         ::cppu::ComponentFactoryFunc                        pComponentCreationFunc;
      64             :         /// the function to create a factory for the component (usually <code>::cppu::createSingleComponentFactory</code>)
      65             :         FactoryInstantiation                                pFactoryCreationFunc;
      66             : 
      67             :         ComponentDescription()
      68             :             :sImplementationName()
      69             :             ,aSupportedServices()
      70             :             ,sSingletonName()
      71             :             ,pComponentCreationFunc( NULL )
      72             :             ,pFactoryCreationFunc( NULL )
      73             :         {
      74             :         }
      75             : 
      76        1923 :         ComponentDescription(
      77             :                 const OUString& _rImplementationName,
      78             :                 const ::com::sun::star::uno::Sequence< OUString >& _rSupportedServices,
      79             :                 const OUString& _rSingletonName,
      80             :                 ::cppu::ComponentFactoryFunc _pComponentCreationFunc,
      81             :                 FactoryInstantiation _pFactoryCreationFunc
      82             :             )
      83             :             :sImplementationName( _rImplementationName )
      84             :             ,aSupportedServices( _rSupportedServices )
      85             :             ,sSingletonName( _rSingletonName )
      86             :             ,pComponentCreationFunc( _pComponentCreationFunc )
      87        1923 :             ,pFactoryCreationFunc( _pFactoryCreationFunc )
      88             :         {
      89        1923 :         }
      90             :     };
      91             : 
      92             :     //=========================================================================
      93             :     //= OModule
      94             :     //=========================================================================
      95             :     class OModuleImpl;
      96             :     class COMPHELPER_DLLPUBLIC OModule
      97             :     {
      98             :     private:
      99             :         oslInterlockedCount     m_nClients;     /// number of registered clients
     100             :         OModuleImpl*            m_pImpl;        /// impl class. lives as long as at least one client for the module is registered
     101             : 
     102             :     protected:
     103             :         mutable ::osl::Mutex    m_aMutex;       /// access safety
     104             : 
     105             :     public:
     106             :         OModule();
     107             : 
     108             :         virtual ~OModule();
     109             : 
     110             :         /** register a component implementing a service with the given data.
     111             :             @param _rImplementationName
     112             :                 the implementation name of the component
     113             :             @param _rServiceNames
     114             :                 the services the component supports
     115             :             @param _pCreateFunction
     116             :                 a function for creating an instance of the component
     117             :             @param _pFactoryFunction
     118             :                 a function for creating a factory for that component
     119             :         */
     120             :         void registerImplementation(
     121             :             const OUString& _rImplementationName,
     122             :             const ::com::sun::star::uno::Sequence< OUString >& _rServiceNames,
     123             :             ::cppu::ComponentFactoryFunc _pCreateFunction,
     124             :             FactoryInstantiation _pFactoryFunction = ::cppu::createSingleComponentFactory );
     125             : 
     126             :         /** registers a component given by ComponentDescription
     127             :         */
     128             :         void registerImplementation( const ComponentDescription& _rComp );
     129             : 
     130             :         /** creates a Factory for the component with the given implementation name.
     131             :             <p>Usually used from within component_getFactory.<p/>
     132             :             @param _pImplementationName
     133             :                 the implementation name of the component
     134             :             @return
     135             :                 the XInterface access to a factory for the component
     136             :         */
     137             :         ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > getComponentFactory(
     138             :             const OUString& _rImplementationName );
     139             : 
     140             :         /** version of getComponentFactory which directly takes the char argument you got in your component_getFactory call
     141             :         */
     142             :         void* getComponentFactory( const sal_Char* _pImplementationName );
     143             : 
     144             :     public:
     145           0 :         class ClientAccess { friend class OModuleClient; private: ClientAccess() { } };
     146             :         /// register a client for the module
     147             :         void registerClient( ClientAccess );
     148             :         /// revoke a client for the module
     149             :         void revokeClient( ClientAccess );
     150             : 
     151             :     protected:
     152             :         /** called when the first client has been registered
     153             :             @precond
     154             :                 <member>m_aMutex</member> is locked
     155             :         */
     156             :         virtual void onFirstClient();
     157             : 
     158             :         /** called when the last client has been revoked
     159             :             @precond
     160             :                 <member>m_aMutex</member> is locked
     161             :         */
     162             :         virtual void onLastClient();
     163             : 
     164             :     private:
     165             :         OModule( const OModule& );              // never implemented
     166             :         OModule& operator=( const OModule& );   // never implemented
     167             :     };
     168             : 
     169             :     //=========================================================================
     170             :     //= OModuleClient
     171             :     //=========================================================================
     172             :     /** base class for objects which uses any global module-specific resources
     173             :     */
     174             :     class COMPHELPER_DLLPUBLIC OModuleClient
     175             :     {
     176             :     protected:
     177             :         OModule&    m_rModule;
     178             : 
     179             :     public:
     180           0 :         OModuleClient( OModule& _rModule ) :m_rModule( _rModule )   { m_rModule.registerClient( OModule::ClientAccess() ); }
     181           0 :         ~OModuleClient()                                            { m_rModule.revokeClient( OModule::ClientAccess() ); }
     182             :     };
     183             : 
     184             :     //==========================================================================
     185             :     //= OAutoRegistration
     186             :     //==========================================================================
     187             :     template <class TYPE>
     188             :     class OAutoRegistration
     189             :     {
     190             :     public:
     191             :         /** automatically provides all component information to an OModule instance
     192             :             <p>Assumed that the template argument has the three methods
     193             :                 <ul>
     194             :                     <li><code>static OUString getImplementationName_static()</code><li/>
     195             :                     <li><code>static ::com::sun::star::uno::Sequence< OUString > getSupportedServiceNames_static()</code><li/>
     196             :                     <li><code>static ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >
     197             :                         Create(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >&)</code>
     198             :                         </li>
     199             :                 <ul/>
     200             :             the instantiation of this object will automatically register the class via <member>OModule::registerImplementation</member>.
     201             :             <p/>
     202             :             The factory creation function used is <code>::cppu::createSingleComponentFactory</code>.
     203             :         */
     204             :         OAutoRegistration( OModule& _rModule );
     205             :     };
     206             : 
     207             :     template <class TYPE>
     208        1537 :     OAutoRegistration<TYPE>::OAutoRegistration( OModule& _rModule )
     209             :     {
     210        1537 :         _rModule.registerImplementation(
     211             :             TYPE::getImplementationName_static(),
     212             :             TYPE::getSupportedServiceNames_static(),
     213             :             TYPE::Create
     214             :         );
     215        1537 :     }
     216             : 
     217             :     //==========================================================================
     218             :     //= OSingletonRegistration
     219             :     //==========================================================================
     220             :     template <class TYPE>
     221             :     class OSingletonRegistration
     222             :     {
     223             :     public:
     224             :         /** automatically provides all component information to an OModule instance,
     225             :             for a singleton component
     226             : 
     227             :             <p>Assumed that the template argument has the three methods
     228             :                 <ul>
     229             :                     <li><code>static OUString getImplementationName_static()</code><li/>
     230             :                     <li><code>static ::com::sun::star::uno::Sequence< OUString > getSupportedServiceNames_static()</code><li/>
     231             :                     <li><code>static OUString getSingletonName_static()</code></li>
     232             :                     <li><code>static ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >
     233             :                         Create(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >&)</code>
     234             :                         </li>
     235             :                 <ul/>
     236             :             the instantiation of this object will automatically register the class via <member>OModule::registerImplementation</member>.
     237             :             </p>
     238             :         */
     239             :         OSingletonRegistration( OModule& _rModule );
     240             :     };
     241             : 
     242             :     template <class TYPE>
     243             :     //--------------------------------------------------------------------------
     244         377 :     OSingletonRegistration<TYPE>::OSingletonRegistration( OModule& _rModule )
     245             :     {
     246         377 :         _rModule.registerImplementation( ComponentDescription(
     247             :             TYPE::getImplementationName_static(),
     248             :             TYPE::getSupportedServiceNames_static(),
     249             :             TYPE::getSingletonName_static(),
     250             :             &TYPE::Create,
     251             :             &::cppu::createSingleComponentFactory
     252         754 :         ) );
     253         377 :     }
     254             : 
     255             : //........................................................................
     256             : } // namespace comphelper
     257             : //........................................................................
     258             : 
     259             : #endif // COMPHELPER_INC_COMPHELPER_COMPONENTMODULE_HXX
     260             : 
     261             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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