/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/

 

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"
#include <comphelper/accessiblekeybindinghelper.hxx>
#include <swurl.hxx>
#include <vos/mutex.hxx>
#include <vcl/svapp.hxx>
#include <ndtxt.hxx>
#include <txtinet.hxx>
#include <accpara.hxx>
#include <acchyperlink.hxx>

#include <comphelper/processfactory.hxx>
#ifndef _COM_SUN_STAR_FRAME_XDESKTOP_HPP_
#include <com/sun/star/frame/XDesktop.hpp>
#endif
#ifndef _COM_SUN_STAR_FRAME_XCOMPONENTLOADER_HPP_
#include <com/sun/star/frame/XComponentLoader.hpp>
#endif
#ifndef _COM_SUN_STAR_DOCUMENT_XLINKTARGETSUPPLIER_HPP_
#include <com/sun/star/document/XLinkTargetSupplier.hpp>
#endif

using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
using ::rtl::OUString;
using ::com::sun::star::lang::IndexOutOfBoundsException;

SwAccessibleHyperlink::SwAccessibleHyperlink( sal_uInt16 nHPos,
	SwAccessibleParagraph *p, sal_Int32 nStt, sal_Int32 nEnd ) :
	nHintPos( nHPos ),
	xPara( p ),
	nStartIdx( nStt ),
	nEndIdx( nEnd )
{
}

const SwTxtAttr *SwAccessibleHyperlink::GetTxtAttr() const
{
	const SwTxtAttr *pTxtAttr = 0;
	if( xPara.isValid() && xPara->GetMap() )
	{
		const SwTxtNode *pTxtNd = xPara->GetTxtNode();
		const SwpHints *pHints = pTxtNd->GetpSwpHints();
		if( pHints && nHintPos < pHints->Count() )
		{
			const SwTxtAttr *pHt = (*pHints)[nHintPos];
			if( RES_TXTATR_INETFMT == pHt->Which() )
				pTxtAttr = pHt;
		}
	}

	return pTxtAttr;
}


// XAccessibleAction
sal_Int32 SAL_CALL SwAccessibleHyperlink::getAccessibleActionCount() 
		throw (uno::RuntimeException)
{
	 return isValid() ? 1 : 0;
}

sal_Bool SAL_CALL SwAccessibleHyperlink::doAccessibleAction( sal_Int32 nIndex ) 
		throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
	vos::OGuard aGuard(Application::GetSolarMutex());

	sal_Bool bRet = sal_False;

	if(nIndex != 0)
		throw new IndexOutOfBoundsException;
	const SwTxtAttr *pTxtAttr = GetTxtAttr();
	if( pTxtAttr /*&& 0 == nIndex*/ ) 
	{
		const SwFmtINetFmt& rINetFmt = pTxtAttr->GetINetFmt();
		if( rINetFmt.GetValue().Len() )
		{
			ViewShell *pVSh = xPara->GetShell();
			if( pVSh )
			{
				LoadURL( rINetFmt.GetValue(), pVSh, URLLOAD_NOFILTER,
						 &rINetFmt.GetTargetFrame() );
				ASSERT( pTxtAttr == rINetFmt.GetTxtINetFmt(),
					 	"lost my txt attr" );
				const SwTxtINetFmt* pTxtAttr2 = rINetFmt.GetTxtINetFmt();
				if( pTxtAttr2 )
				{
                    const_cast<SwTxtINetFmt*>(pTxtAttr2)->SetVisited(true);
                    const_cast<SwTxtINetFmt*>(pTxtAttr2)->SetVisitedValid(true);
				}
				bRet = sal_True;
			}
		}
	}

	return bRet;
}

OUString SAL_CALL SwAccessibleHyperlink::getAccessibleActionDescription(
		sal_Int32 nIndex ) 
		throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
	OUString sDesc;

	if(nIndex != 0)
		throw new IndexOutOfBoundsException;
	const SwTxtAttr *pTxtAttr = GetTxtAttr();
	if( pTxtAttr /*&& 0 == nIndex*/ ) 
	{
		const SwFmtINetFmt& rINetFmt = pTxtAttr->GetINetFmt();
		sDesc = OUString( rINetFmt.GetValue() );
	}
	return sDesc;
}

uno::Reference< XAccessibleKeyBinding > SAL_CALL
	SwAccessibleHyperlink::getAccessibleActionKeyBinding( sal_Int32 ) 
	throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
	uno::Reference< XAccessibleKeyBinding > xKeyBinding;

	if( isValid() /*&& 0 == nIndex*/ ) 
	{
		::comphelper::OAccessibleKeyBindingHelper* pKeyBindingHelper =
		   	new ::comphelper::OAccessibleKeyBindingHelper();
		xKeyBinding = pKeyBindingHelper;

        awt::KeyStroke aKeyStroke;
		aKeyStroke.Modifiers = 0;
		aKeyStroke.KeyCode = KEY_RETURN;
		aKeyStroke.KeyChar = 0;
		aKeyStroke.KeyFunc = 0;
		pKeyBindingHelper->AddKeyBinding( aKeyStroke );
	}

	return xKeyBinding;
}

// XAccessibleHyperlink
uno::Any SAL_CALL SwAccessibleHyperlink::getAccessibleActionAnchor(
        sal_Int32 nIndex) 
		throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
	uno::Any aRet;
	if(nIndex != 0)
		throw new IndexOutOfBoundsException;
	//End Added.	
	::rtl::OUString text = OUString( xPara->GetString() );
	::rtl::OUString retText =  text.copy(nStartIdx, nEndIdx - nStartIdx);
	aRet <<= retText;
	return aRet;
}

uno::Any SAL_CALL SwAccessibleHyperlink::getAccessibleActionObject( 
            sal_Int32 nIndex ) 
	throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
	if(nIndex != 0)
		throw new IndexOutOfBoundsException;
	//End Added.
	const SwTxtAttr *pTxtAttr = GetTxtAttr();
	::rtl::OUString retText;
	if( pTxtAttr /*&& 0 == nIndex*/ ) 
	{
		const SwFmtINetFmt& rINetFmt = pTxtAttr->GetINetFmt();
		retText = OUString( rINetFmt.GetValue() );
	}
	uno::Any aRet;
	aRet <<= retText;
	return aRet;
}

sal_Int32 SAL_CALL SwAccessibleHyperlink::getStartIndex() 
		throw (uno::RuntimeException)
{
	return nStartIdx;
}

sal_Int32 SAL_CALL SwAccessibleHyperlink::getEndIndex() 
		throw (uno::RuntimeException)
{
	return nEndIdx;
}

sal_Bool SAL_CALL SwAccessibleHyperlink::isValid(  ) 
		throw (uno::RuntimeException)
{
	vos::OGuard aGuard(Application::GetSolarMutex());
	//	return xPara.isValid();
	if (xPara.isValid())
	{
		const SwTxtAttr *pTxtAttr = GetTxtAttr();
		::rtl::OUString sText;
		if( pTxtAttr ) 
		{
			const SwFmtINetFmt& rINetFmt = pTxtAttr->GetINetFmt();
			sText = OUString( rINetFmt.GetValue() );
			::rtl::OUString sToken = ::rtl::OUString::createFromAscii("#");
			sal_Int32 nPos = sText.indexOf(sToken);
			if (nPos==0)//document link
			{
				uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory() );
				if( ! xFactory.is() )
					return sal_False;
				uno::Reference< com::sun::star::frame::XDesktop > xDesktop( xFactory->createInstance( OUString::createFromAscii( "com.sun.star.frame.Desktop" ) ),
					uno::UNO_QUERY );
				if( !xDesktop.is() )
					return sal_False;	
				uno::Reference< lang::XComponent > xComp;
				xComp = xDesktop->getCurrentComponent();
				if( !xComp.is() )
					return sal_False;	
				uno::Reference< com::sun::star::document::XLinkTargetSupplier >  xLTS(xComp, uno::UNO_QUERY);
				if ( !xLTS.is())
					return sal_False;
			
				uno::Reference< ::com::sun::star::container::XNameAccess > xLinks = xLTS->getLinks();
				uno::Reference< ::com::sun::star::container::XNameAccess > xSubLinks;
				const uno::Sequence< OUString > aNames( xLinks->getElementNames() );
				const sal_uLong nLinks = aNames.getLength();
				const OUString* pNames = aNames.getConstArray();
				
				for( sal_uLong i = 0; i < nLinks; i++ )
				{
					uno::Any aAny;
					OUString aLink( *pNames++ );
					aAny = xLinks->getByName( aLink );
					aAny >>= xSubLinks;
					if (xSubLinks->hasByName(sText.copy(1)) )
						return sal_True;
				}
			}
			else//internet
				return sal_True;
		}
	}//xpara valid
	return sal_False;
}

void SwAccessibleHyperlink::Invalidate()
{
	vos::OGuard aGuard(Application::GetSolarMutex());
	xPara = 0;
}