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 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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 * specific language governing permissions and limitations
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#include "vbahelper/vbaglobalbase.hxx"

#include <cppuhelper/component_context.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/container/XNameContainer.hpp>

using namespace com::sun::star;
using namespace ooo::vba;

rtl::OUString sApplication( RTL_CONSTASCII_USTRINGPARAM("Application") );

// special key to return the Application
rtl::OUString sAppService( RTL_CONSTASCII_USTRINGPARAM("ooo.vba.Application") );

VbaGlobalsBase::VbaGlobalsBase( 
const uno::Reference< ov::XHelperInterface >& xParent, 
const uno::Reference< uno::XComponentContext >& xContext, const rtl::OUString& sDocCtxName )
:  Globals_BASE( xParent, xContext ), msDocCtxName( sDocCtxName )
{
    // overwrite context with custom one ( that contains the application )
    // wrap the service manager as we don't want the disposing context to tear down the 'normal' ServiceManager ( or at least thats what the code appears like it wants to do )
    uno::Any aSrvMgr;
    if ( xContext.is() && xContext->getServiceManager().is() )
    {
        aSrvMgr = uno::makeAny( xContext->getServiceManager()->createInstanceWithContext( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.comp.stoc.OServiceManagerWrapper") ), xContext ) );
    }

    ::cppu::ContextEntry_Init aHandlerContextInfo[] =
    {
        ::cppu::ContextEntry_Init( sApplication, uno::Any() ), 
        ::cppu::ContextEntry_Init( sDocCtxName, uno::Any() ), 
        ::cppu::ContextEntry_Init( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("/singletons/com.sun.star.lang.theServiceManager" ) ), aSrvMgr )
    };
    // don't pass a delegate, this seems to introduce yet another cyclic dependency ( and
    // some strange behavior
    mxContext = ::cppu::createComponentContext( aHandlerContextInfo, sizeof( aHandlerContextInfo ) / sizeof( aHandlerContextInfo[0] ), NULL );
}

VbaGlobalsBase::~VbaGlobalsBase()
{
    try
    {
        uno::Reference< container::XNameContainer > xNameContainer( mxContext, uno::UNO_QUERY );
        if ( xNameContainer.is() )
        {
            // release document reference ( we don't wan't the component context trying to dispose that )
            xNameContainer->removeByName( msDocCtxName );
            // release application reference, as it is holding onto the context
            xNameContainer->removeByName( sApplication );
        }
    }
    catch ( const uno::Exception& )
    {
    }
}

void
VbaGlobalsBase::init(  const uno::Sequence< beans::PropertyValue >& aInitArgs )
{
    sal_Int32 nLen = aInitArgs.getLength();
    for ( sal_Int32 nIndex = 0; nIndex < nLen; ++nIndex )
    {
        uno::Reference< container::XNameContainer > xNameContainer( mxContext, uno::UNO_QUERY_THROW );
        if ( aInitArgs[ nIndex ].Name.equals( sApplication ) )
        {
            xNameContainer->replaceByName( sApplication, aInitArgs[ nIndex ].Value );
            uno::Reference< XHelperInterface > xParent( aInitArgs[ nIndex ].Value, uno::UNO_QUERY );
            mxParent = xParent;
        }
        else 
            xNameContainer->replaceByName( aInitArgs[ nIndex ].Name, aInitArgs[ nIndex ].Value );
    }
}

uno::Reference< uno::XInterface > SAL_CALL 
VbaGlobalsBase::createInstance( const ::rtl::OUString& aServiceSpecifier ) throw (uno::Exception, uno::RuntimeException)
{
    uno::Reference< uno::XInterface > xReturn;
    if ( aServiceSpecifier.equals( sAppService ) )
    {
        // try to extract the Application from the context
        uno::Reference< container::XNameContainer > xNameContainer( mxContext, uno::UNO_QUERY );
        xNameContainer->getByName( sApplication ) >>= xReturn;
    }
    else if ( hasServiceName( aServiceSpecifier ) )
        xReturn = mxContext->getServiceManager()->createInstanceWithContext( aServiceSpecifier, mxContext );
    return xReturn;
}

uno::Reference< uno::XInterface > SAL_CALL 
VbaGlobalsBase::createInstanceWithArguments( const ::rtl::OUString& aServiceSpecifier, const uno::Sequence< uno::Any >& Arguments ) throw (uno::Exception, uno::RuntimeException)
{
    
    uno::Reference< uno::XInterface > xReturn;
    if ( aServiceSpecifier.equals( sAppService ) )
    {
        // try to extract the Application from the context
        uno::Reference< container::XNameContainer > xNameContainer( mxContext, uno::UNO_QUERY );
        xNameContainer->getByName( sApplication ) >>= xReturn;
    }
    else if ( hasServiceName( aServiceSpecifier ) )
        xReturn = mxContext->getServiceManager()->createInstanceWithArgumentsAndContext( aServiceSpecifier, Arguments, mxContext );
    return xReturn;
}

uno::Sequence< ::rtl::OUString > SAL_CALL 
VbaGlobalsBase::getAvailableServiceNames(  ) throw (uno::RuntimeException)
{
    static const rtl::OUString names[] = { 
    // common
        ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( "ooo.vba.msforms.UserForm" ) ),
      };
    static uno::Sequence< rtl::OUString > serviceNames( names, sizeof( names )/ sizeof( names[0] ) );
    return serviceNames;
}

bool
VbaGlobalsBase::hasServiceName( const rtl::OUString& serviceName )
{
    uno::Sequence< rtl::OUString > sServiceNames( getAvailableServiceNames() );
    sal_Int32 nLen = sServiceNames.getLength();
    for ( sal_Int32 index = 0; index < nLen; ++index )
    {
        if ( sServiceNames[ index ].equals( serviceName ) )
            return true;
    }
    return false;
}