ActiveMSPList.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <cppuhelper/exc_hlp.hxx>
#include <util/MiscUtils.hxx>
 
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
 
#include "ActiveMSPList.hxx"
 
#include <comphelper/diagnose_ex.hxx>
 
using namespace com::sun::star;
using namespace com::sun::star::uno;
using namespace com::sun::star::script;
using namespace ::sf_misc;
 
namespace func_provider
{
 
ActiveMSPList::ActiveMSPList(  const Reference< XComponentContext > & xContext ) : m_xContext( xContext )
{
    userDirString = "user";
    shareDirString = "share";
    bundledDirString = "bundled";
}
 
ActiveMSPList::~ActiveMSPList()
{
}
 
Reference< provider::XScriptProvider >
ActiveMSPList::createNewMSP( const uno::Any& context )
{
    Sequence< Any > args( &context, 1 );
 
    Reference< provider::XScriptProvider > msp(
        m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
            "com.sun.star.script.provider.MasterScriptProvider", args, m_xContext ), UNO_QUERY );
    return msp;
}
 
class NonDocMSPCreator
{
public:
    explicit NonDocMSPCreator(ActiveMSPList *pList)
    {
        pList->createNonDocMSPs();
    }
};
 
namespace
{
    //thread-safe method to ensure createNonDocMSPs is called once
    void ensureNonDocMSPs(ActiveMSPList *pList)
    {
        static NonDocMSPCreator theCreator(pList);
    }
}
 
Reference< provider::XScriptProvider >
ActiveMSPList::getMSPFromAnyContext( const Any& aContext )
{
    Reference< provider::XScriptProvider > msp;
    OUString sContext;
    if ( aContext >>= sContext )
    {
        msp = getMSPFromStringContext( sContext );
        return msp;
    }
 
    Reference< frame::XModel > xModel( aContext, UNO_QUERY );
 
    Reference< document::XScriptInvocationContext > xScriptContext( aContext, UNO_QUERY );
    if ( xScriptContext.is() )
    {
        try
        {
            // the component supports executing scripts embedded in a - possibly foreign document.
            // Check whether this other document it's the component itself.
            if ( !xModel.is() || ( xModel != xScriptContext->getScriptContainer() ) )
            {
                msp = getMSPFromInvocationContext( xScriptContext );
                return msp;
            }
        }
        catch( const lang::IllegalArgumentException& )
        {
            xModel.set( Reference< frame::XModel >() );
        }
    }
 
    if ( xModel.is() )
    {
        sContext = MiscUtils::xModelToTdocUrl( xModel, m_xContext );
        msp = getMSPFromStringContext( sContext );
        return msp;
    }
 
    ensureNonDocMSPs(this);
    return m_hMsps[ shareDirString ];
}
 
Reference< provider::XScriptProvider >
    ActiveMSPList::getMSPFromInvocationContext( const Reference< document::XScriptInvocationContext >& xContext )
{
    Reference< provider::XScriptProvider > msp;
 
    Reference< document::XEmbeddedScripts > xScripts;
    if ( xContext.is() )
        xScripts.set( xContext->getScriptContainer() );
    if ( !xScripts.is() )
    {
        throw lang::IllegalArgumentException(
            "Failed to create MasterScriptProvider for ScriptInvocationContext: "
            "Component supporting XEmbeddScripts interface not found.",
            nullptr, 1 );
    }
 
    ::osl::MutexGuard guard( m_mutex );
 
    Reference< XInterface > xNormalized( xContext, UNO_QUERY );
    ScriptComponent_map::const_iterator pos = m_mScriptComponents.find( xNormalized );
    if ( pos == m_mScriptComponents.end() )
    {
        // TODO
        msp = createNewMSP( uno::Any( xContext ) );
        addActiveMSP( xNormalized, msp );
    }
    else
    {
        msp = pos->second;
    }
 
    return msp;
}
 
Reference< provider::XScriptProvider >
    ActiveMSPList::getMSPFromStringContext( const OUString& context )
{
    Reference< provider::XScriptProvider > msp;
    try
    {
        if ( context.startsWith( "vnd.sun.star.tdoc" ) )
        {
            Reference< frame::XModel > xModel( MiscUtils::tDocUrlToModel( context ) );
 
            Reference< document::XEmbeddedScripts > xScripts( xModel, UNO_QUERY );
            Reference< document::XScriptInvocationContext > xScriptsContext( xModel, UNO_QUERY );
            if ( !xScripts.is() && !xScriptsContext.is() )
            {
                throw lang::IllegalArgumentException(
                    "Failed to create MasterScriptProvider for '"
                    + context +
                    "': Either XEmbeddScripts or XScriptInvocationContext need to be supported by the document.",
                    nullptr, 1 );
            }
 
            ::osl::MutexGuard guard( m_mutex );
            Reference< XInterface > xNormalized( xModel, UNO_QUERY );
            ScriptComponent_map::const_iterator pos = m_mScriptComponents.find( xNormalized );
            if ( pos == m_mScriptComponents.end() )
            {
                msp = createNewMSP( context );
                addActiveMSP( xNormalized, msp );
            }
            else
            {
                msp = pos->second;
            }
        }
        else
        {
            ::osl::MutexGuard guard( m_mutex );
            Msp_hash::iterator h_itEnd =  m_hMsps.end();
            Msp_hash::const_iterator itr = m_hMsps.find( context );
            if ( itr ==  h_itEnd )
            {
                msp = createNewMSP( context );
                m_hMsps[ context ] = msp;
            }
            else
            {
                msp = m_hMsps[ context ];
            }
        }
    }
    catch( const lang::IllegalArgumentException& )
    {
        // allowed to leave
    }
    catch( const RuntimeException& )
    {
        // allowed to leave
    }
    catch( const Exception& )
    {
        css::uno::Any anyEx = cppu::getCaughtException();
        throw lang::WrappedTargetRuntimeException(
            "Failed to create MasterScriptProvider for context '"
            + context + "'.",
            *this, anyEx );
    }
    return msp;
}
 
void
ActiveMSPList::addActiveMSP( const Reference< uno::XInterface >& xComponent,
               const Reference< provider::XScriptProvider >& msp )
{
    ::osl::MutexGuard guard( m_mutex );
    Reference< XInterface > xNormalized( xComponent, UNO_QUERY );
    ScriptComponent_map::const_iterator pos = m_mScriptComponents.find( xNormalized );
    if ( pos != m_mScriptComponents.end() )
        return;
 
    m_mScriptComponents[ xNormalized ] = msp;
 
    // add self as listener for component disposal
    // should probably throw from this method!!, reexamine
    try
    {
        Reference< lang::XComponent > xBroadcaster( xComponent, UNO_QUERY_THROW );
        xBroadcaster->addEventListener( this );
    }
    catch ( const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION("scripting");
    }
}
 
 
void SAL_CALL ActiveMSPList::disposing( const css::lang::EventObject& Source )
 
{
    try
    {
        Reference< XInterface > xNormalized( Source.Source, UNO_QUERY );
        if ( xNormalized.is() )
        {
            ::osl::MutexGuard guard( m_mutex );
            ScriptComponent_map::iterator pos = m_mScriptComponents.find( xNormalized );
            if ( pos != m_mScriptComponents.end() )
                m_mScriptComponents.erase( pos );
        }
    }
    catch ( const Exception& )
    {
        // if we get an exception here, there is not much we can do about
        // it can't throw as it will screw up the model that is calling dispose
        DBG_UNHANDLED_EXCEPTION("scripting");
    }
}
 
void
ActiveMSPList::createNonDocMSPs()
{
    // do creation of user and share MSPs here
    OUString serviceName("com.sun.star.script.provider.MasterScriptProvider");
 
    Sequence< Any > args{ Any(userDirString) };
    Reference< provider::XScriptProvider > userMsp( m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext( serviceName, args, m_xContext ), UNO_QUERY );
    // should check if provider reference is valid
    m_hMsps[ userDirString ] = userMsp;
 
    args = { Any(shareDirString) };
    Reference< provider::XScriptProvider > shareMsp( m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext( serviceName, args, m_xContext ), UNO_QUERY );
    // should check if provider reference is valid
    m_hMsps[ shareDirString ] = shareMsp;
 
    args = { Any(bundledDirString) };
    Reference< provider::XScriptProvider > bundledMsp( m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext( serviceName, args, m_xContext ), UNO_QUERY );
    // should check if provider reference is valid
    m_hMsps[ bundledDirString ] = bundledMsp;
}
 
} // namespace func_provider
 
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