/**************************************************************
 * 
 * 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_accessibility.hxx"
#include <accessibility/standard/vclxaccessiblestatusbaritem.hxx>
#include <toolkit/helper/externallock.hxx>
#include <toolkit/helper/convert.hxx>
#include <accessibility/helper/characterattributeshelper.hxx>

#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>

#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <vcl/svapp.hxx>
#include <vcl/unohelp2.hxx>
#include <vcl/status.hxx>
#include <vcl/controllayout.hxx>

#include <memory>


using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star;
using namespace ::comphelper;


// -----------------------------------------------------------------------------
// class VCLXAccessibleStatusBarItem
// -----------------------------------------------------------------------------

VCLXAccessibleStatusBarItem::VCLXAccessibleStatusBarItem( StatusBar* pStatusBar, sal_uInt16 nItemId )
	:AccessibleTextHelper_BASE( new VCLExternalSolarLock() )
	,m_pStatusBar( pStatusBar )
	,m_nItemId( nItemId )
{
	m_pExternalLock = static_cast< VCLExternalSolarLock* >( getExternalLock() );

	m_sItemName = GetItemName();
	m_sItemText = GetItemText();
	m_bShowing	= IsShowing();
}

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

VCLXAccessibleStatusBarItem::~VCLXAccessibleStatusBarItem()
{
	delete m_pExternalLock;
	m_pExternalLock = NULL;
}

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

sal_Bool VCLXAccessibleStatusBarItem::IsShowing()
{
	sal_Bool bShowing = sal_False;

	if ( m_pStatusBar )
		bShowing = m_pStatusBar->IsItemVisible( m_nItemId );

	return bShowing;
}

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

void VCLXAccessibleStatusBarItem::SetShowing( sal_Bool bShowing )
{
	if ( m_bShowing != bShowing )
	{
		Any aOldValue, aNewValue;
		if ( m_bShowing )
			aOldValue <<= AccessibleStateType::SHOWING;
		else
			aNewValue <<= AccessibleStateType::SHOWING;
		m_bShowing = bShowing;
		NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
	}
}

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

void VCLXAccessibleStatusBarItem::SetItemName( const ::rtl::OUString& sItemName )
{
	if ( !m_sItemName.equals( sItemName ) )
	{
		Any aOldValue, aNewValue;
		aOldValue <<= m_sItemName;
		aNewValue <<= sItemName;
		m_sItemName = sItemName;
        NotifyAccessibleEvent( AccessibleEventId::NAME_CHANGED, aOldValue, aNewValue );
	}
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::GetItemName()
{
	::rtl::OUString sName;
	if ( m_pStatusBar )
		sName = m_pStatusBar->GetAccessibleName( m_nItemId );

	return sName;
}

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

void VCLXAccessibleStatusBarItem::SetItemText( const ::rtl::OUString& sItemText )
{
	Any aOldValue, aNewValue;
    if ( implInitTextChangedEvent( m_sItemText, sItemText, aOldValue, aNewValue ) )
    {
        m_sItemText = sItemText;
		NotifyAccessibleEvent( AccessibleEventId::TEXT_CHANGED, aOldValue, aNewValue );
    }
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::GetItemText()
{
	::rtl::OUString sText;
	::vcl::ControlLayoutData aLayoutData;
	if ( m_pStatusBar )
	{
		Rectangle aItemRect = m_pStatusBar->GetItemRect( m_nItemId );
		m_pStatusBar->RecordLayoutData( &aLayoutData, aItemRect );
		sText = aLayoutData.m_aDisplayText;
	}

	return sText;
}

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

void VCLXAccessibleStatusBarItem::FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet )
{
	rStateSet.AddState( AccessibleStateType::ENABLED );
    rStateSet.AddState( AccessibleStateType::SENSITIVE );

	rStateSet.AddState( AccessibleStateType::VISIBLE );

	if ( IsShowing() )
		rStateSet.AddState( AccessibleStateType::SHOWING );
}

// -----------------------------------------------------------------------------
// OCommonAccessibleComponent 
// -----------------------------------------------------------------------------

awt::Rectangle VCLXAccessibleStatusBarItem::implGetBounds() throw (RuntimeException)
{
	awt::Rectangle aBounds( 0, 0, 0, 0 );	

	if ( m_pStatusBar )
		aBounds = AWTRectangle( m_pStatusBar->GetItemRect( m_nItemId ) );

	return aBounds;
}

// -----------------------------------------------------------------------------
// OCommonAccessibleText
// -----------------------------------------------------------------------------

::rtl::OUString VCLXAccessibleStatusBarItem::implGetText()
{
	return GetItemText();
}

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

lang::Locale VCLXAccessibleStatusBarItem::implGetLocale()
{
	return Application::GetSettings().GetLocale();
}

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

void VCLXAccessibleStatusBarItem::implGetSelection( sal_Int32& nStartIndex, sal_Int32& nEndIndex )
{
	nStartIndex = 0;
	nEndIndex = 0;
}

// -----------------------------------------------------------------------------
// XInterface
// -----------------------------------------------------------------------------

IMPLEMENT_FORWARD_XINTERFACE2( VCLXAccessibleStatusBarItem, AccessibleTextHelper_BASE, VCLXAccessibleStatusBarItem_BASE )

// -----------------------------------------------------------------------------
// XTypeProvider
// -----------------------------------------------------------------------------

IMPLEMENT_FORWARD_XTYPEPROVIDER2( VCLXAccessibleStatusBarItem, AccessibleTextHelper_BASE, VCLXAccessibleStatusBarItem_BASE )

// -----------------------------------------------------------------------------
// XComponent
// -----------------------------------------------------------------------------

void VCLXAccessibleStatusBarItem::disposing()
{
	AccessibleTextHelper_BASE::disposing();

	m_pStatusBar = NULL;
	m_sItemName = ::rtl::OUString();
	m_sItemText = ::rtl::OUString();
}

// -----------------------------------------------------------------------------
// XServiceInfo
// -----------------------------------------------------------------------------

::rtl::OUString VCLXAccessibleStatusBarItem::getImplementationName() throw (RuntimeException)
{
	return ::rtl::OUString::createFromAscii( "com.sun.star.comp.toolkit.AccessibleStatusBarItem" );
}

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

sal_Bool VCLXAccessibleStatusBarItem::supportsService( const ::rtl::OUString& rServiceName ) throw (RuntimeException)
{
	Sequence< ::rtl::OUString > aNames( getSupportedServiceNames() );
	const ::rtl::OUString* pNames = aNames.getConstArray();
	const ::rtl::OUString* pEnd = pNames + aNames.getLength();
	for ( ; pNames != pEnd && !pNames->equals( rServiceName ); ++pNames )
		;

	return pNames != pEnd;
}

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

Sequence< ::rtl::OUString > VCLXAccessibleStatusBarItem::getSupportedServiceNames() throw (RuntimeException)
{
	Sequence< ::rtl::OUString > aNames(1);
	aNames[0] = ::rtl::OUString::createFromAscii( "com.sun.star.awt.AccessibleStatusBarItem" );
	return aNames;
}

// -----------------------------------------------------------------------------
// XAccessible
// -----------------------------------------------------------------------------

Reference< XAccessibleContext > VCLXAccessibleStatusBarItem::getAccessibleContext(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return this;
}

// -----------------------------------------------------------------------------
// XAccessibleContext
// -----------------------------------------------------------------------------

sal_Int32 VCLXAccessibleStatusBarItem::getAccessibleChildCount() throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return 0;
}

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

Reference< XAccessible > VCLXAccessibleStatusBarItem::getAccessibleChild( sal_Int32 i ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

	if ( i < 0 || i >= getAccessibleChildCount() )
		throw IndexOutOfBoundsException();

	return Reference< XAccessible >();
}

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

Reference< XAccessible > VCLXAccessibleStatusBarItem::getAccessibleParent(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	Reference< XAccessible > xParent;
	if ( m_pStatusBar )
		xParent = m_pStatusBar->GetAccessible();

	return xParent;
}

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

sal_Int32 VCLXAccessibleStatusBarItem::getAccessibleIndexInParent(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Int32 nIndexInParent = -1;
	if ( m_pStatusBar )
		nIndexInParent = m_pStatusBar->GetItemPos( m_nItemId );

	return nIndexInParent;
}

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

sal_Int16 VCLXAccessibleStatusBarItem::getAccessibleRole(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return AccessibleRole::LABEL;
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::getAccessibleDescription(	) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	::rtl::OUString sDescription;
	if ( m_pStatusBar )
		sDescription = m_pStatusBar->GetHelpText( m_nItemId ); 

	return sDescription;
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::getAccessibleName(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return GetItemName();
}

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

Reference< XAccessibleRelationSet > VCLXAccessibleStatusBarItem::getAccessibleRelationSet(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

    utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
	Reference< XAccessibleRelationSet > xSet = pRelationSetHelper;
    return xSet;
}

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

Reference< XAccessibleStateSet > VCLXAccessibleStatusBarItem::getAccessibleStateSet(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;
	Reference< XAccessibleStateSet > xSet = pStateSetHelper;

	if ( !rBHelper.bDisposed && !rBHelper.bInDispose )
	{
		FillAccessibleStateSet( *pStateSetHelper );
	}
	else
	{
        pStateSetHelper->AddState( AccessibleStateType::DEFUNC );
	}

	return xSet;
}

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

Locale VCLXAccessibleStatusBarItem::getLocale(  ) throw (IllegalAccessibleComponentStateException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return Application::GetSettings().GetLocale();
}

// -----------------------------------------------------------------------------
// XAccessibleComponent
// -----------------------------------------------------------------------------

Reference< XAccessible > VCLXAccessibleStatusBarItem::getAccessibleAtPoint( const awt::Point& ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return Reference< XAccessible >();
}

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

void VCLXAccessibleStatusBarItem::grabFocus(  ) throw (RuntimeException)
{
	// no focus for status bar items
}

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

sal_Int32 VCLXAccessibleStatusBarItem::getForeground(	) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Int32 nColor = 0;
	Reference< XAccessible > xParent = getAccessibleParent();
	if ( xParent.is() )
	{
		Reference< XAccessibleComponent > xParentComp( xParent->getAccessibleContext(), UNO_QUERY );
		if ( xParentComp.is() )
			nColor = xParentComp->getForeground();	
	}

	return nColor;
}

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

sal_Int32 VCLXAccessibleStatusBarItem::getBackground(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Int32 nColor = 0;
	Reference< XAccessible > xParent = getAccessibleParent();
	if ( xParent.is() )
	{
		Reference< XAccessibleComponent > xParentComp( xParent->getAccessibleContext(), UNO_QUERY );
		if ( xParentComp.is() )
			nColor = xParentComp->getBackground();	
	}

	return nColor;
}

// -----------------------------------------------------------------------------
// XAccessibleExtendedComponent
// -----------------------------------------------------------------------------

Reference< awt::XFont > VCLXAccessibleStatusBarItem::getFont(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	Reference< awt::XFont > xFont;
	Reference< XAccessible > xParent = getAccessibleParent();
	if ( xParent.is() )
	{
		Reference< XAccessibleExtendedComponent > xParentComp( xParent->getAccessibleContext(), UNO_QUERY );
		if ( xParentComp.is() )
			xFont = xParentComp->getFont();	
	}

	return xFont;
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::getTitledBorderText(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return GetItemText();
}

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

::rtl::OUString VCLXAccessibleStatusBarItem::getToolTipText(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return ::rtl::OUString();
}

// -----------------------------------------------------------------------------
// XAccessibleText
// -----------------------------------------------------------------------------

sal_Int32 VCLXAccessibleStatusBarItem::getCaretPosition() throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return -1;
}

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

sal_Bool VCLXAccessibleStatusBarItem::setCaretPosition( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

    if ( !implIsValidRange( nIndex, nIndex, implGetText().getLength() ) )
        throw IndexOutOfBoundsException();

	return sal_False;
}

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

Sequence< PropertyValue > VCLXAccessibleStatusBarItem::getCharacterAttributes( sal_Int32 nIndex, const Sequence< ::rtl::OUString >& aRequestedAttributes ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

	Sequence< PropertyValue > aValues;
	::rtl::OUString sText( implGetText() );

    if ( !implIsValidIndex( nIndex, sText.getLength() ) )
        throw IndexOutOfBoundsException();

	if ( m_pStatusBar )
	{
		Font aFont = m_pStatusBar->GetFont();
		sal_Int32 nBackColor = getBackground();
		sal_Int32 nColor = getForeground();
        ::std::auto_ptr< CharacterAttributesHelper > pHelper( new CharacterAttributesHelper( aFont, nBackColor, nColor ) );
		aValues = pHelper->GetCharacterAttributes( aRequestedAttributes );
	}

    return aValues;
}

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

awt::Rectangle VCLXAccessibleStatusBarItem::getCharacterBounds( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

    if ( !implIsValidIndex( nIndex, implGetText().getLength() ) )
        throw IndexOutOfBoundsException();

	awt::Rectangle aBounds( 0, 0, 0, 0 );
	if ( m_pStatusBar )
	{
		::vcl::ControlLayoutData aLayoutData;
		Rectangle aItemRect = m_pStatusBar->GetItemRect( m_nItemId );
		m_pStatusBar->RecordLayoutData( &aLayoutData, aItemRect );
		Rectangle aCharRect = aLayoutData.GetCharacterBounds( nIndex );
		aCharRect.Move( -aItemRect.Left(), -aItemRect.Top() );
		aBounds = AWTRectangle( aCharRect );
	}

	return aBounds;
}

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

sal_Int32 VCLXAccessibleStatusBarItem::getIndexAtPoint( const awt::Point& aPoint ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Int32 nIndex = -1;
	if ( m_pStatusBar )
	{
		::vcl::ControlLayoutData aLayoutData;
		Rectangle aItemRect = m_pStatusBar->GetItemRect( m_nItemId );
		m_pStatusBar->RecordLayoutData( &aLayoutData, aItemRect );
		Point aPnt( VCLPoint( aPoint ) );
		aPnt += aItemRect.TopLeft();
		nIndex = aLayoutData.GetIndexForPoint( aPnt );
	}

    return nIndex;
}

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

sal_Bool VCLXAccessibleStatusBarItem::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

    if ( !implIsValidRange( nStartIndex, nEndIndex, implGetText().getLength() ) )
        throw IndexOutOfBoundsException();

	return sal_False;
}

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

sal_Bool VCLXAccessibleStatusBarItem::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Bool bReturn = sal_False;

	if ( m_pStatusBar )
	{
		Reference< datatransfer::clipboard::XClipboard > xClipboard = m_pStatusBar->GetClipboard();
		if ( xClipboard.is() )
		{
			::rtl::OUString sText( getTextRange( nStartIndex, nEndIndex ) );

			::vcl::unohelper::TextDataObject* pDataObj = new ::vcl::unohelper::TextDataObject( sText );
			const sal_uInt32 nRef = Application::ReleaseSolarMutex();
			xClipboard->setContents( pDataObj, NULL );

			Reference< datatransfer::clipboard::XFlushableClipboard > xFlushableClipboard( xClipboard, uno::UNO_QUERY );
			if( xFlushableClipboard.is() )
				xFlushableClipboard->flushClipboard();
			
			Application::AcquireSolarMutex( nRef );

			bReturn = sal_True;
		}
	}

    return bReturn;
}

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