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 *
 * 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.
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sc.hxx"



#include <sfx2/viewfrm.hxx>
#include <comphelper/uno3.hxx>
#include <svx/dataaccessdescriptor.hxx>
#include <svl/smplhint.hxx>

#include <com/sun/star/frame/XDispatchProviderInterception.hpp>
#include <com/sun/star/view/XSelectionSupplier.hpp>
#include <com/sun/star/sdb/CommandType.hpp>

#include "dispuno.hxx"
#include "unoguard.hxx"
#include "tabvwsh.hxx"
#include "dbdocfun.hxx"
#include "dbcolect.hxx"

using namespace com::sun::star;

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

const char* cURLInsertColumns = ".uno:DataSourceBrowser/InsertColumns"; //data into text
const char* cURLDocDataSource = ".uno:DataSourceBrowser/DocumentDataSource";

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

SV_IMPL_PTRARR( XStatusListenerArr_Impl, XStatusListenerPtr );

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

uno::Reference<view::XSelectionSupplier> lcl_GetSelectionSupplier( SfxViewShell* pViewShell )
{
	if ( pViewShell )
	{
		SfxViewFrame* pViewFrame = pViewShell->GetViewFrame();
		if (pViewFrame)
		{
			return uno::Reference<view::XSelectionSupplier>( pViewFrame->GetFrame().GetController(), uno::UNO_QUERY );
		}
	}
	return uno::Reference<view::XSelectionSupplier>();
}

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


ScDispatchProviderInterceptor::ScDispatchProviderInterceptor(ScTabViewShell* pViewSh) :
	pViewShell( pViewSh )
{
	if ( pViewShell )
	{
		m_xIntercepted.set(uno::Reference<frame::XDispatchProviderInterception>(pViewShell->GetViewFrame()->GetFrame().GetFrameInterface(), uno::UNO_QUERY));
		if (m_xIntercepted.is())
		{
			comphelper::increment( m_refCount );

			m_xIntercepted->registerDispatchProviderInterceptor(
						static_cast<frame::XDispatchProviderInterceptor*>(this));
			// this should make us the top-level dispatch-provider for the component, via a call to our
			// setDispatchProvider we should have got an fallback for requests we (i.e. our master) cannot fulfill
			uno::Reference<lang::XComponent> xInterceptedComponent(m_xIntercepted, uno::UNO_QUERY);
			if (xInterceptedComponent.is())
				xInterceptedComponent->addEventListener(static_cast<lang::XEventListener*>(this));

			comphelper::decrement( m_refCount );
		}

		StartListening(*pViewShell);
	}
}

ScDispatchProviderInterceptor::~ScDispatchProviderInterceptor()
{
	if (pViewShell)
		EndListening(*pViewShell);
}

void ScDispatchProviderInterceptor::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
	if ( rHint.ISA( SfxSimpleHint ) &&
			((const SfxSimpleHint&)rHint).GetId() == SFX_HINT_DYING )
		pViewShell = NULL;
}

// XDispatchProvider

uno::Reference<frame::XDispatch> SAL_CALL ScDispatchProviderInterceptor::queryDispatch(
						const util::URL& aURL, const rtl::OUString& aTargetFrameName,
						sal_Int32 nSearchFlags )
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;

	uno::Reference<frame::XDispatch> xResult;
	// create some dispatch ...
	if ( pViewShell && (
		!aURL.Complete.compareToAscii(cURLInsertColumns) ||
		!aURL.Complete.compareToAscii(cURLDocDataSource) ) )
	{
		if (!m_xMyDispatch.is())
			m_xMyDispatch = new ScDispatch( pViewShell );
		xResult = m_xMyDispatch;
	}

	// ask our slave provider
	if (!xResult.is() && m_xSlaveDispatcher.is())
		xResult = m_xSlaveDispatcher->queryDispatch(aURL, aTargetFrameName, nSearchFlags);

	return xResult;
}

uno::Sequence< uno::Reference<frame::XDispatch> > SAL_CALL
						ScDispatchProviderInterceptor::queryDispatches(
						const uno::Sequence<frame::DispatchDescriptor>& aDescripts )
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;

	uno::Sequence< uno::Reference< frame::XDispatch> > aReturn(aDescripts.getLength());
	uno::Reference< frame::XDispatch>* pReturn = aReturn.getArray();
	const frame::DispatchDescriptor* pDescripts = aDescripts.getConstArray();
	for (sal_Int16 i=0; i<aDescripts.getLength(); ++i, ++pReturn, ++pDescripts)
	{
		*pReturn = queryDispatch(pDescripts->FeatureURL,
				pDescripts->FrameName, pDescripts->SearchFlags);
	}
	return aReturn;
}

// XDispatchProviderInterceptor

uno::Reference<frame::XDispatchProvider> SAL_CALL
						ScDispatchProviderInterceptor::getSlaveDispatchProvider()
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;
	return m_xSlaveDispatcher;
}

void SAL_CALL ScDispatchProviderInterceptor::setSlaveDispatchProvider(
						const uno::Reference<frame::XDispatchProvider>& xNewDispatchProvider )
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;
	m_xSlaveDispatcher.set(xNewDispatchProvider);
}

uno::Reference<frame::XDispatchProvider> SAL_CALL
						ScDispatchProviderInterceptor::getMasterDispatchProvider()
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;
	return m_xMasterDispatcher;
}

void SAL_CALL ScDispatchProviderInterceptor::setMasterDispatchProvider(
						const uno::Reference<frame::XDispatchProvider>& xNewSupplier )
						throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;
	m_xMasterDispatcher.set(xNewSupplier);
}

// XEventListener

void SAL_CALL ScDispatchProviderInterceptor::disposing( const lang::EventObject& /* Source */ )
								throw(::com::sun::star::uno::RuntimeException)
{
	ScUnoGuard aGuard;

	if (m_xIntercepted.is())
	{
		m_xIntercepted->releaseDispatchProviderInterceptor(
				static_cast<frame::XDispatchProviderInterceptor*>(this));
		uno::Reference<lang::XComponent> xInterceptedComponent(m_xIntercepted, uno::UNO_QUERY);
		if (xInterceptedComponent.is())
			xInterceptedComponent->removeEventListener(static_cast<lang::XEventListener*>(this));

		m_xMyDispatch = NULL;
	}
	m_xIntercepted = NULL;
}

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

ScDispatch::ScDispatch(ScTabViewShell* pViewSh) :
	pViewShell( pViewSh ),
	bListeningToView( sal_False )
{
	if (pViewShell)
		StartListening(*pViewShell);
}

ScDispatch::~ScDispatch()
{
	if (pViewShell)
		EndListening(*pViewShell);

    if (bListeningToView && pViewShell)
    {
        uno::Reference<view::XSelectionSupplier> xSupplier(lcl_GetSelectionSupplier( pViewShell ));
        if ( xSupplier.is() )
	        xSupplier->removeSelectionChangeListener(this);
    }
}

void ScDispatch::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
	if ( rHint.ISA( SfxSimpleHint ) &&
			((const SfxSimpleHint&)rHint).GetId() == SFX_HINT_DYING )
		pViewShell = NULL;
}

// XDispatch

void SAL_CALL ScDispatch::dispatch( const util::URL& aURL,
								const uno::Sequence<beans::PropertyValue>& aArgs )
								throw(uno::RuntimeException)
{
	ScUnoGuard aGuard;

	sal_Bool bDone = sal_False;
	if ( pViewShell && !aURL.Complete.compareToAscii(cURLInsertColumns) )
	{
		ScViewData* pViewData = pViewShell->GetViewData();
		ScAddress aPos( pViewData->GetCurX(), pViewData->GetCurY(), pViewData->GetTabNo() );

		ScDBDocFunc aFunc( *pViewData->GetDocShell() );
		bDone = aFunc.DoImportUno( aPos, aArgs );
	}
	// cURLDocDataSource is never dispatched

	if (!bDone)
		throw uno::RuntimeException();
}

void lcl_FillDataSource( frame::FeatureStateEvent& rEvent, const ScImportParam& rParam )
{
    rEvent.IsEnabled = rParam.bImport;

    ::svx::ODataAccessDescriptor aDescriptor;
    if ( rParam.bImport )
    {
        sal_Int32 nType = rParam.bSql ? sdb::CommandType::COMMAND :
                    ( (rParam.nType == ScDbQuery) ? sdb::CommandType::QUERY :
                                                    sdb::CommandType::TABLE );

		aDescriptor.setDataSource(rtl::OUString( rParam.aDBName ));
        aDescriptor[svx::daCommand]     <<= rtl::OUString( rParam.aStatement );
        aDescriptor[svx::daCommandType] <<= nType;
    }
    else
    {
        //  descriptor has to be complete anyway

        rtl::OUString aEmpty;
        aDescriptor[svx::daDataSource]  <<= aEmpty;
        aDescriptor[svx::daCommand]     <<= aEmpty;
        aDescriptor[svx::daCommandType] <<= (sal_Int32)sdb::CommandType::TABLE;
    }
    rEvent.State <<= aDescriptor.createPropertyValueSequence();
}

void SAL_CALL ScDispatch::addStatusListener(
                                const uno::Reference<frame::XStatusListener>& xListener,
                                const util::URL& aURL )
                                throw(uno::RuntimeException)
{
    ScUnoGuard aGuard;

    if (!pViewShell)
        throw uno::RuntimeException();

    //  initial state
    frame::FeatureStateEvent aEvent;
    aEvent.IsEnabled = sal_True;
    aEvent.Source.set(static_cast<cppu::OWeakObject*>(this));
    aEvent.FeatureURL = aURL;

    if ( !aURL.Complete.compareToAscii(cURLDocDataSource) )
    {
        uno::Reference<frame::XStatusListener>* pObj =
                new uno::Reference<frame::XStatusListener>( xListener );
        aDataSourceListeners.Insert( pObj, aDataSourceListeners.Count() );

        if (!bListeningToView)
        {
            uno::Reference<view::XSelectionSupplier> xSupplier(lcl_GetSelectionSupplier( pViewShell ));
            if ( xSupplier.is() )
                xSupplier->addSelectionChangeListener(this);
            bListeningToView = sal_True;
        }

        ScDBData* pDBData = pViewShell->GetDBData(sal_False,SC_DB_OLD);
        if ( pDBData )
            pDBData->GetImportParam( aLastImport );
        lcl_FillDataSource( aEvent, aLastImport );          // modifies State, IsEnabled
    }
    //! else add to listener for "enabled" changes?

    xListener->statusChanged( aEvent );
}

void SAL_CALL ScDispatch::removeStatusListener(
                                const uno::Reference<frame::XStatusListener>& xListener,
                                const util::URL& aURL )
                                throw(uno::RuntimeException)
{
    ScUnoGuard aGuard;

    if ( !aURL.Complete.compareToAscii(cURLDocDataSource) )
    {
        sal_uInt16 nCount = aDataSourceListeners.Count();
        for ( sal_uInt16 n=nCount; n--; )
        {
            uno::Reference<frame::XStatusListener> *pObj = aDataSourceListeners[n];
            if ( *pObj == xListener )
            {
                aDataSourceListeners.DeleteAndDestroy( n );
                break;
            }
        }

        if ( aDataSourceListeners.Count() == 0 && pViewShell )
        {
            uno::Reference<view::XSelectionSupplier> xSupplier(lcl_GetSelectionSupplier( pViewShell ));
            if ( xSupplier.is() )
                xSupplier->removeSelectionChangeListener(this);
            bListeningToView = sal_False;
        }
    }
}

// XSelectionChangeListener

void SAL_CALL ScDispatch::selectionChanged( const ::com::sun::star::lang::EventObject& /* aEvent */ )
                                throw (::com::sun::star::uno::RuntimeException)
{
    //  currently only called for URL cURLDocDataSource

    if ( pViewShell )
    {
        ScImportParam aNewImport;
        ScDBData* pDBData = pViewShell->GetDBData(sal_False,SC_DB_OLD);
        if ( pDBData )
            pDBData->GetImportParam( aNewImport );

        //  notify listeners only if data source has changed
        if ( aNewImport.bImport    != aLastImport.bImport ||
             aNewImport.aDBName    != aLastImport.aDBName ||
             aNewImport.aStatement != aLastImport.aStatement ||
             aNewImport.bSql       != aLastImport.bSql ||
             aNewImport.nType      != aLastImport.nType )
        {
            frame::FeatureStateEvent aEvent;
            aEvent.Source.set(static_cast<cppu::OWeakObject*>(this));
            aEvent.FeatureURL.Complete = rtl::OUString::createFromAscii( cURLDocDataSource );

            lcl_FillDataSource( aEvent, aNewImport );       // modifies State, IsEnabled

            for ( sal_uInt16 n=0; n<aDataSourceListeners.Count(); n++ )
                (*aDataSourceListeners[n])->statusChanged( aEvent );

            aLastImport = aNewImport;
        }
    }
}

// XEventListener

void SAL_CALL ScDispatch::disposing( const ::com::sun::star::lang::EventObject& rSource )
                                throw (::com::sun::star::uno::RuntimeException)
{
    uno::Reference<view::XSelectionSupplier> xSupplier(rSource.Source, uno::UNO_QUERY);
    xSupplier->removeSelectionChangeListener(this);
    bListeningToView = sal_False;

    lang::EventObject aEvent;
    aEvent.Source.set(static_cast<cppu::OWeakObject*>(this));
    for ( sal_uInt16 n=0; n<aDataSourceListeners.Count(); n++ )
        (*aDataSourceListeners[n])->disposing( aEvent );

    pViewShell = NULL;
}