vbaeventshelperbase.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_VBAHELPER_VBAEVENTSHELPERBASE_HXX
#define INCLUDED_VBAHELPER_VBAEVENTSHELPERBASE_HXX
 
#include <deque>
#include <map>
#include <unordered_map>
 
#include <com/sun/star/document/XEventListener.hpp>
#include <com/sun/star/lang/EventObject.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/script/vba/XVBAEventProcessor.hpp>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/util/XChangesListener.hpp>
#include <cppuhelper/implbase.hxx>
#include <rtl/ustring.hxx>
#include <sal/types.h>
#include <vbahelper/vbadllapi.h>
 
namespace com::sun::star {
    namespace document { struct EventObject; }
    namespace frame { class XModel; }
    namespace script::vba { class XVBAModuleInfo; }
    namespace uno { class XComponentContext; }
    namespace util { struct ChangesEvent; }
}
 
class SfxObjectShell;
 
typedef ::cppu::WeakImplHelper<
    css::script::vba::XVBAEventProcessor,
    css::document::XEventListener,
    css::util::XChangesListener,
    css::lang::XServiceInfo > VbaEventsHelperBase_BASE;
 
class VBAHELPER_DLLPUBLIC VbaEventsHelperBase : public VbaEventsHelperBase_BASE
{
public:
    VbaEventsHelperBase(
        const css::uno::Sequence< css::uno::Any >& rArgs );
    virtual ~VbaEventsHelperBase() override;
 
    // script::vba::XVBAEventProcessor
    virtual sal_Bool SAL_CALL hasVbaEventHandler( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) override;
    virtual sal_Bool SAL_CALL processVbaEvent( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) override;
 
    // document::XEventListener
    virtual void SAL_CALL notifyEvent( const css::document::EventObject& rEvent ) override;
 
    // util::XChangesListener
    virtual void SAL_CALL changesOccurred( const css::util::ChangesEvent& rEvent ) override;
 
    // lang::XEventListener
    virtual void SAL_CALL disposing( const css::lang::EventObject& rEvent ) override;
 
    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override;
 
    // little helpers ---------------------------------------------------------
 
    bool hasModule(const OUString& rModuleName);
 
    void processVbaEventNoThrow( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs );
 
    static void checkArgument( const css::uno::Sequence< css::uno::Any >& rArgs, sal_Int32 nIndex )
        { if( (nIndex < 0) || (nIndex >= rArgs.getLength()) ) throw css::lang::IllegalArgumentException(); }
 
    template< typename Type >
    static void checkArgumentType( const css::uno::Sequence< css::uno::Any >& rArgs, sal_Int32 nIndex )
        { checkArgument( rArgs, nIndex ); if( !rArgs[ nIndex ].has< Type >() ) throw css::lang::IllegalArgumentException(); }
 
protected:
 
 
    struct EventHandlerInfo
    {
        sal_Int32 mnEventId;
        sal_Int32 mnModuleType;
        OUString maMacroName;
        sal_Int32 mnCancelIndex;
        css::uno::Any maUserData;
    };
 
    void registerEventHandler(
            sal_Int32 nEventId,
            sal_Int32 nModuleType,
            const char* pcMacroName,
            sal_Int32 nCancelIndex = -1,
            const css::uno::Any& rUserData = css::uno::Any() );
 
 
    struct EventQueueEntry
    {
        sal_Int32 mnEventId;
        css::uno::Sequence< css::uno::Any > maArgs;
        /*implicit*/ EventQueueEntry( sal_Int32 nEventId ) : mnEventId( nEventId ) {}
        EventQueueEntry( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) : mnEventId( nEventId ), maArgs( rArgs ) {}
    };
    typedef ::std::deque< EventQueueEntry > EventQueue;
 
    virtual bool implPrepareEvent(
        EventQueue& rEventQueue,
        const EventHandlerInfo& rInfo,
        const css::uno::Sequence< css::uno::Any >& rArgs ) = 0;
 
    virtual css::uno::Sequence< css::uno::Any > implBuildArgumentList(
        const EventHandlerInfo& rInfo,
        const css::uno::Sequence< css::uno::Any >& rArgs ) = 0;
 
    virtual void implPostProcessEvent(
        EventQueue& rEventQueue,
        const EventHandlerInfo& rInfo,
        bool bCancel ) = 0;
 
    virtual OUString implGetDocumentModuleName(
        const EventHandlerInfo& rInfo,
        const css::uno::Sequence< css::uno::Any >& rArgs ) const = 0;
 
private:
    typedef ::std::map< sal_Int32, OUString > ModulePathMap;
 
    void startListening();
    void stopListening();
 
    const EventHandlerInfo& getEventHandlerInfo( sal_Int32 nEventId ) const;
 
    OUString getEventHandlerPath(
        const EventHandlerInfo& rInfo,
        const css::uno::Sequence< css::uno::Any >& rArgs );
 
    void ensureVBALibrary();
 
    sal_Int32 getModuleType( const OUString& rModuleName );
 
    ModulePathMap& updateModulePathMap( const OUString& rModuleName );
 
protected:
    css::uno::Reference< css::frame::XModel > mxModel;
    SfxObjectShell* mpShell;
 
private:
    typedef std::map< sal_Int32, EventHandlerInfo > EventHandlerInfoMap;
    typedef std::unordered_map< OUString, ModulePathMap > EventHandlerPathMap;
 
    EventHandlerInfoMap maEventInfos;
    EventHandlerPathMap maEventPaths;
    css::uno::Reference< css::script::vba::XVBAModuleInfo > mxModuleInfos;
    OUString maLibraryName;
    bool mbDisposed;
};
 
 
#endif
 
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