/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the Collabora Office 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 INCLUDED_CPPUHELPER_FACTORY_HXX
#define INCLUDED_CPPUHELPER_FACTORY_HXX

#include "sal/config.h"

#include <cstddef>

#include "rtl/ustring.hxx"
#include "rtl/unload.h"

#include "com/sun/star/uno/Reference.h"
#include "cppuhelper/cppuhelperdllapi.h"

namespace com { namespace sun { namespace star { namespace lang { class XMultiServiceFactory; } } } }
namespace com { namespace sun { namespace star { namespace lang { class XSingleComponentFactory; } } } }
namespace com { namespace sun { namespace star { namespace lang { class XSingleServiceFactory; } } } }
namespace com { namespace sun { namespace star { namespace registry { class XRegistryKey; } } } }
namespace com { namespace sun { namespace star { namespace uno { class XComponentContext; } } } }
namespace com { namespace sun { namespace star { namespace uno { class XInterface; } } } }
namespace cpo::uno { template <class E> class Sequence; }

#define COMPONENT_GETENV            "component_getImplementationEnvironment"
#define COMPONENT_GETENVEXT         "component_getImplementationEnvironmentExt"
#define COMPONENT_WRITEINFO         "component_writeInfo"
#define COMPONENT_GETFACTORY        "component_getFactory"

typedef struct _uno_Environment uno_Environment;

/** Function pointer declaration.
    Function determines the environment of the component implementation, i.e. which compiler
    compiled it. If the environment is NOT session specific (needs no additional context),
    then this function should return the environment type name and leave ppEnv (to 0).

    @param ppEnvTypeName environment type name; string must be constant
    @param ppEnv function returns its environment if the environment is session specific,
                 i.e. has special context
*/
typedef void (* component_getImplementationEnvironmentFunc)(
    const char ** ppEnvTypeName, uno_Environment ** ppEnv );

/** Function pointer declaration.
    Function determines the environment of the component implementation, i.e. the compiler.
    If the environment is NOT session specific (needs no additional context),
    then this function should return the environment type name and leave ppEnv (to 0).

    @param ppEnvTypeName environment type name; string must be a constant
    @param ppEnv         function returns an environment if the environment is session specific,
                         i.e. has special context
    @param pImplName
*/
typedef void (* component_getImplementationEnvironmentExtFunc)(
    char        const ** ppEnvTypeName,
    uno_Environment       ** ppEnv,
    char        const  * pImplName,
    uno_Environment        * pTargetEnv
);

/** Function pointer declaration.

    @deprecated component_writeInfo should no longer be used in new components

    Function writes component registry info, at least writing the supported service names.

    @param pServiceManager
    a service manager (the type is an XMultiServiceFactory that can be used
    by the environment returned by component_getImplementationEnvironment)
    @param pRegistryKey a registry key
    (the type is XRegistryKey that can be used by the environment
    returned by component_getImplementationEnvironment)
    @return true if everything went fine
*/
typedef bool (* component_writeInfoFunc)(
    void * pServiceManager, void * pRegistryKey );

/** Function pointer declaration.
    Retrieves a factory to create component instances.

   @param pImplName
   desired implementation name
   @param pServiceManager
   a service manager (the type is XMultiServiceFactory that can be used by the environment
   returned by component_getImplementationEnvironment)
   @param pRegistryKey
   a registry key (the type is XRegistryKey that can be used by the environment
   returned by component_getImplementationEnvironment)
   @return acquired component factory
   (the type is lang::XSingleComponentFactory or lang::XSingleServiceFactory to be used by the
   environment returned by component_getImplementationEnvironment)
*/
typedef void * (* component_getFactoryFunc)(
    const char * pImplName, void * pServiceManager, void * pRegistryKey );


namespace cppu
{

/** Function pointer declaration.
    Function creates component instance passing the component context to be used.

    @param xContext component context to be used
    @return component instance
*/
typedef css::uno::Reference< css::uno::XInterface >(
    * ComponentFactoryFunc)(
        css::uno::Reference< css::uno::XComponentContext > const & xContext );

/** Creates a single component factory supporting the XSingleComponentFactory interface.

    @param fptr function pointer for instantiating the object
    @param rImplementationName implementation name of service
    @param rServiceNames supported services
    @param pModCount a backwards-compatibility remainder of a removed library
           unloading feature; always set to null
*/
CPPUHELPER_DLLPUBLIC css::uno::Reference< css::lang::XSingleComponentFactory >
createSingleComponentFactory(
    ComponentFactoryFunc fptr,
    ::rtl::OUString const & rImplementationName,
    cpo::uno::Sequence< ::rtl::OUString > const & rServiceNames,
    rtl_ModuleCount * pModCount = NULL );

/** Creates a single service factory which holds the instance created only once.

    @param fptr function pointer for instantiating the object
    @param rImplementationName implementation name of service
    @param rServiceNames supported services
    @param pModCount a backwards-compatibility remainder of a removed library
           unloading feature; always set to null

    @see createSingleComponentFactory
*/
CPPUHELPER_DLLPUBLIC css::uno::Reference< css::lang::XSingleComponentFactory >
createOneInstanceComponentFactory(
    ComponentFactoryFunc fptr,
    ::rtl::OUString const & rImplementationName,
    cpo::uno::Sequence< ::rtl::OUString > const & rServiceNames,
    rtl_ModuleCount * pModCount = NULL );

/** Deprecated.  The type of the instantiate function used as argument of the create*Factory functions.

    @see createSingleFactory
    @see createOneInstanceFactory
    @deprecated
*/
typedef css::uno::Reference< css::uno::XInterface >(* ComponentInstantiation)(
    const css::uno::Reference< css::lang::XMultiServiceFactory > & rServiceManager );

/** Deprecated.  Creates a single service factory.

    @param rServiceManager      the service manager used by the implementation.
    @param rImplementationName  the implementation name. An empty string is possible.
    @param pCreateFunction      the function pointer to create an object.
    @param rServiceNames        the service supported by the implementation.
    @param pModCount a backwards-compatibility remainder of a removed library
           unloading feature; always set to null.
    @return a factory that support the interfaces XServiceProvider, XServiceInfo
    XSingleServiceFactory and XComponent.

    @see createOneInstanceFactory
    @deprecated
*/
CPPUHELPER_DLLPUBLIC css::uno::Reference< css::lang::XSingleServiceFactory >
createSingleFactory(
    const css::uno::Reference< css::lang::XMultiServiceFactory > & rServiceManager,
    const ::rtl::OUString & rImplementationName,
    ComponentInstantiation pCreateFunction,
    const cpo::uno::Sequence< ::rtl::OUString > & rServiceNames,
    rtl_ModuleCount * pModCount = NULL  );

/** Deprecated.  Creates a single service factory which holds the instance created only once.

    @param rServiceManager      the service manager used by the implementation.
    @param rComponentName       the implementation name. An empty string is possible.
    @param pCreateFunction      the function pointer to create an object.
    @param rServiceNames        the service supported by the implementation.
    @param pModCount a backwards-compatibility remainder of a removed library
           unloading feature; always set to null.
    @return a factory that support the interfaces XServiceProvider, XServiceInfo
    XSingleServiceFactory and XComponent.

    @see createSingleFactory
    @deprecated
*/
CPPUHELPER_DLLPUBLIC css::uno::Reference< css::lang::XSingleServiceFactory >
createOneInstanceFactory(
    const css::uno::Reference< css::lang::XMultiServiceFactory > & rServiceManager,
    const ::rtl::OUString & rComponentName,
    ComponentInstantiation pCreateFunction,
    const cpo::uno::Sequence< ::rtl::OUString > & rServiceNames,
    rtl_ModuleCount * pModCount = NULL  );

/** Deprecated.  Creates a single service factory based on a registry.

    @param rServiceManager      the service manager used by the implementation.
    @param rImplementationName  the implementation name. An empty string is possible.
    @param rImplementationKey   the registry key of the implementation section.
    @return a factory that support the interfaces XServiceProvider, XServiceInfo
    XSingleServiceFactory and XComponent.
    @deprecated
*/
CPPUHELPER_DLLPUBLIC css::uno::Reference< css::lang::XSingleServiceFactory >
createSingleRegistryFactory(
    const css::uno::Reference< css::lang::XMultiServiceFactory > & rServiceManager,
    const ::rtl::OUString & rImplementationName,
    const css::uno::Reference< css::registry::XRegistryKey > & rImplementationKey );

}

#endif

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