/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _SFXSTATCACH_HXX
#define _SFXSTATCACH_HXX

#include <com/sun/star/frame/XDispatchProviderInterceptor.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <com/sun/star/frame/FrameSearchFlag.hpp>
#include <com/sun/star/frame/XDispatchProviderInterception.hpp>
#include <com/sun/star/frame/FeatureStateEvent.hpp>
#include <com/sun/star/frame/DispatchDescriptor.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <cppuhelper/weak.hxx>

#ifndef _SFXBINDINGS_HXX
#include <sfx2/bindings.hxx>
#endif

#ifndef _SFXMSGSERV_HXX
#include "slotserv.hxx"
#endif

#include <sfx2/sfxuno.hxx>

class SfxControllerItem;
class SfxDispatcher;
class BindDispatch_Impl	:	public ::com::sun::star::frame::XStatusListener	,
							public ::com::sun::star::lang::XTypeProvider	,
							public ::cppu::OWeakObject
{
friend class SfxStateCache;
	::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatch > 			xDisp;
	::com::sun::star::util::URL						aURL;
	::com::sun::star::frame::FeatureStateEvent		aStatus;
	SfxStateCache*			pCache;
    const SfxSlot*          pSlot;

public:
							BindDispatch_Impl(
								const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatch > & rDisp,
								const ::com::sun::star::util::URL& rURL,
                                SfxStateCache* pStateCache, const SfxSlot* pSlot );

	SFX_DECL_XINTERFACE_XTYPEPROVIDER

	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& Source ) throw ( ::com::sun::star::uno::RuntimeException );

	void					Release();
	const ::com::sun::star::frame::FeatureStateEvent& GetStatus() const;
	void                    Dispatch( com::sun::star::uno::Sequence < com::sun::star::beans::PropertyValue > aProps, sal_Bool bForceSynchron = sal_False );
};

class SfxStateCache
{
friend class BindDispatch_Impl;
	BindDispatch_Impl*		pDispatch;
	sal_uInt16				nId;		   // Slot-Id
    SfxControllerItem*      pInternalController;
    com::sun::star::uno::Reference < com::sun::star::frame::XDispatch > xMyDispatch;
	SfxControllerItem*		pController;   // Ptr auf 1. gebundenen Controller (untereinander verkettet)
	SfxSlotServer			aSlotServ;	   // SlotServer, SlotPtr = 0 -> Nicht auf Stack
	SfxPoolItem*			pLastItem;	   // zuletzt verschicktes Item, nie -1
	SfxItemState			eLastState;    // zuletzt verschickter State
	sal_Bool				bCtrlDirty:1;  // Controller aktualisiert?
	sal_Bool				bSlotDirty:1;  // Funktion gfs. vorhanden, muss aktualisiert werden
    sal_Bool                bItemVisible:1;// item visibility
	sal_Bool			    bItemDirty;    // G"ultigkeit von pLastItem

private:
							SfxStateCache( const SfxStateCache& rOrig ); // n.i.
	void					SetState_Impl( SfxItemState, const SfxPoolItem*, sal_Bool bMaybeDirty=sal_False );

public:
							SfxStateCache( sal_uInt16 nFuncId );
							~SfxStateCache();

	sal_uInt16					GetId() const;

    const SfxSlotServer*    GetSlotServer( SfxDispatcher &rDispat, const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > & xProv );
    const SfxSlotServer*    GetSlotServer( SfxDispatcher &rDispat )
                            { return GetSlotServer( rDispat, ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider > () ); }
	::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatch > 			GetDispatch() const;
    void                    Dispatch( const SfxItemSet* pSet, sal_Bool bForceSynchron = sal_False );
	sal_Bool					IsControllerDirty() const
							{ return bCtrlDirty ? sal_True : sal_False; }
	SfxPoolItem*			GetItem() const { return pLastItem; }
	void					ClearCache();

	void					SetState( SfxItemState, const SfxPoolItem*, sal_Bool bMaybeDirty=sal_False );
	void					SetCachedState(sal_Bool bAlways = sal_False);
	void					DeleteFloatingWindows();
	void					Invalidate( sal_Bool bWithSlot );
    void                    SetVisibleState( sal_Bool bShow=sal_True );

	SfxControllerItem*		ChangeItemLink( SfxControllerItem* pNewBinding );
	SfxControllerItem*		GetItemLink() const;
    void                    SetInternalController( SfxControllerItem* pCtrl )
                            { DBG_ASSERT( !pInternalController, "Only one internal controller allowed!" ); pInternalController = pCtrl; }
    void                    ReleaseInternalController() { pInternalController = 0; }
    SfxControllerItem*      GetInternalController() const { return pInternalController; }
    com::sun::star::uno::Reference < com::sun::star::frame::XDispatch >
                            GetInternalDispatch() const
                            { return xMyDispatch; }
    void                    SetInternalDispatch( const com::sun::star::uno::Reference < com::sun::star::frame::XDispatch >& rDisp )
                            { xMyDispatch = rDisp; }
};

//--------------------------------------------------------------------

// checks wheather this function is in the stack of active SfxObjectInterface

//inline sal_Bool SfxStateCache::IsCallable( SfxDispatcher &rDispat )
//{
//	return GetSlotServer(rDispat) != 0;
//}
//--------------------------------------------------------------------

// clears Cached-Item

inline void SfxStateCache::ClearCache()
{
	bItemDirty = sal_True;
}

//--------------------------------------------------------------------

// registeres a item representing this function

inline SfxControllerItem* SfxStateCache::ChangeItemLink( SfxControllerItem* pNewBinding )
{
	SfxControllerItem* pOldBinding = pController;
	pController = pNewBinding;
	if ( pNewBinding )
	{
		bCtrlDirty = sal_True;
		bItemDirty = sal_True;
	}
	return pOldBinding;
}
//--------------------------------------------------------------------

// returns the func binding which becomes called on spreading states

inline SfxControllerItem* SfxStateCache::GetItemLink() const
{
	return pController;
}
//--------------------------------------------------------------------

inline sal_uInt16 SfxStateCache::GetId() const
{
	return nId;
}

#endif