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#ifndef INCLUDED_SFX_HELPINTERCEPTOR_HXX
#define INCLUDED_SFX_HELPINTERCEPTOR_HXX

#include <cppuhelper/implbase3.hxx>
#include <com/sun/star/frame/XDispatchProviderInterceptor.hpp>
#include <com/sun/star/frame/XInterceptorInfo.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XDispatchProviderInterception.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <cppuhelper/implbase1.hxx>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <tools/string.hxx>
#include <tools/link.hxx>
#include <vector>

struct HelpHistoryEntry_Impl
{
    String	aURL;
    com::sun::star::uno::Any    aViewData;

    HelpHistoryEntry_Impl( const String& rURL, const com::sun::star::uno::Any& rViewData ) :
        aURL( rURL ), aViewData(rViewData) {}
};

typedef ::std::vector< HelpHistoryEntry_Impl* > HelpHistoryList_Impl;

class SfxHelpWindow_Impl;
class HelpInterceptor_Impl : public ::cppu::WeakImplHelper3<

        ::com::sun::star::frame::XDispatchProviderInterceptor,
        ::com::sun::star::frame::XInterceptorInfo,
        ::com::sun::star::frame::XDispatch >

{
private:
friend class HelpDispatch_Impl;
friend class SfxHelpWindow_Impl;

    // the component which's dispatches we're intercepting
    ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProviderInterception > m_xIntercepted;

    // chaining
    ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > m_xSlaveDispatcher;
    ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > m_xMasterDispatcher;

    ::com::sun::star::uno::Reference< ::com::sun::star::frame::XStatusListener > m_xListener;

    HelpHistoryList_Impl*		m_pHistory;
    SfxHelpWindow_Impl*			m_pWindow;
    sal_uIntPtr						m_nCurPos;
    String						m_aCurrentURL;
    com::sun::star::uno::Any    m_aViewData;

    void						addURL( const String& rURL );

public:
    HelpInterceptor_Impl();
    ~HelpInterceptor_Impl();

    void 					setInterception( ::com::sun::star::uno::Reference< ::com::sun::star::frame::XFrame > xFrame );
    void					SetStartURL( const String& rURL );
    String					GetCurrentURL() const { return m_aCurrentURL; }



    const com::sun::star::uno::Any&     GetViewData()const {return m_aViewData;}
    
    sal_Bool                HasHistoryPred() const;     // is there a predecessor for the current in the history
    sal_Bool				HasHistorySucc() const;		// is there a successor for the current in the history

    // XDispatchProvider
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatch > SAL_CALL
                            queryDispatch( const ::com::sun::star::util::URL& aURL, const ::rtl::OUString& aTargetFrameName, sal_Int32 nSearchFlags ) throw(::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatch > > SAL_CALL
                            queryDispatches( const ::com::sun::star::uno::Sequence< ::com::sun::star::frame::DispatchDescriptor >& aDescripts ) throw(::com::sun::star::uno::RuntimeException);

    // XDispatchProviderInterceptor
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > SAL_CALL
                            getSlaveDispatchProvider(  ) throw(::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL	setSlaveDispatchProvider( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider >& xNewSlave ) throw(::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > SAL_CALL
                            getMasterDispatchProvider(  ) throw(::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL	setMasterDispatchProvider( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider >& xNewMaster ) throw(::com::sun::star::uno::RuntimeException);

    // XInterceptorInfo
    virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL
                            getInterceptedURLs(  ) throw(::com::sun::star::uno::RuntimeException);

    // XDispatch
    virtual void SAL_CALL 	dispatch( const ::com::sun::star::util::URL& aURL, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aArgs ) throw(::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL 	addStatusListener( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XStatusListener >& xControl, const ::com::sun::star::util::URL& aURL ) throw(::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL 	removeStatusListener( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XStatusListener >& xControl, const ::com::sun::star::util::URL& aURL ) throw(::com::sun::star::uno::RuntimeException);

    // extras
    void					InitWaiter( SfxHelpWindow_Impl* pWindow )
                                { m_pWindow = pWindow; }
    SfxHelpWindow_Impl*		GetHelpWindow() const { return m_pWindow; }
};

// HelpListener_Impl -----------------------------------------------------

class HelpListener_Impl : public ::cppu::WeakImplHelper1< ::com::sun::star::frame::XStatusListener >
{
private:
    HelpInterceptor_Impl*	pInterceptor;
    Link					aChangeLink;
    String					aFactory;

public:
    HelpListener_Impl( HelpInterceptor_Impl* pInter );

    virtual void SAL_CALL	statusChanged( const ::com::sun::star::frame::FeatureStateEvent& Event )
                                throw( ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL	disposing( const ::com::sun::star::lang::EventObject& obj )
                                throw( ::com::sun::star::uno::RuntimeException );

    void					SetChangeHdl( const Link& rLink ) { aChangeLink = rLink; }
    String					GetFactory() const { return aFactory; }
};
// HelpStatusListener_Impl -----------------------------------------------------

class HelpStatusListener_Impl : public
::cppu::WeakImplHelper1< ::com::sun::star::frame::XStatusListener >
{
private:
    ::com::sun::star::uno::Reference < ::com::sun::star::frame::XDispatch > xDispatch;
    ::com::sun::star::frame::FeatureStateEvent                              aStateEvent;

public:
    HelpStatusListener_Impl(
        ::com::sun::star::uno::Reference < ::com::sun::star::frame::XDispatch > xDispatch,
        com::sun::star::util::URL& rURL);
    ~HelpStatusListener_Impl();

    virtual void SAL_CALL   statusChanged( const ::com::sun::star::frame::FeatureStateEvent& Event )
                                throw( ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL	disposing( const ::com::sun::star::lang::EventObject& obj )
                                throw( ::com::sun::star::uno::RuntimeException );
    const ::com::sun::star::frame::FeatureStateEvent&
                            GetStateEvent() const {return aStateEvent;}
};


#endif // #ifndef INCLUDED_SFX_HELPINTERCEPTOR_HXX

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