/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */
#include <svtools/vclxaccessibleheaderbaritem.hxx>

#include <svtools/headbar.hxx>

#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>

#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <vcl/svapp.hxx>
#include <toolkit/awt/vclxfont.hxx>
#include <toolkit/helper/externallock.hxx>
#include <toolkit/helper/convert.hxx>

#include <vector>

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

DBG_NAME( VCLXAccessibleHeaderBarItem )

//  ----------------------------------------------------
//  class AccessibleTabBar
//  ----------------------------------------------------

VCLXAccessibleHeaderBarItem::VCLXAccessibleHeaderBarItem( HeaderBar*    pHeadBar, sal_Int32 _nIndexInParent )
    :AccessibleExtendedComponentHelper_BASE( new VCLExternalSolarLock() )
    ,m_pHeadBar( pHeadBar )
    ,m_nIndexInParent(_nIndexInParent + 1)

{
    DBG_CTOR( VCLXAccessibleHeaderBarItem, NULL );
    m_pExternalLock = static_cast< VCLExternalSolarLock* >( getExternalLock() );
}

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

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

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

IMPL_LINK( VCLXAccessibleHeaderBarItem, WindowEventListener, VclSimpleEvent*, pEvent )
{
    DBG_CHKTHIS( VCLXAccessibleHeaderBarItem, 0 );
    DBG_ASSERT( pEvent && pEvent->ISA( VclWindowEvent ), "VCLXAccessibleHeaderBarItem::WindowEventListener: unknown window event!" );

    if ( pEvent && pEvent->ISA( VclWindowEvent ) )
    {
        DBG_ASSERT( ((VclWindowEvent*)pEvent)->GetWindow(), "VCLXAccessibleHeaderBarItem::WindowEventListener: no window!" );
        if ( !((VclWindowEvent*)pEvent)->GetWindow()->IsAccessibilityEventsSuppressed() || ( pEvent->GetId() == VCLEVENT_OBJECT_DYING ) )
        {
            ProcessWindowEvent( *(VclWindowEvent*)pEvent );
        }
    }

    return 0;
}

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

void VCLXAccessibleHeaderBarItem::ProcessWindowEvent( const VclWindowEvent& )
{
}

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

void VCLXAccessibleHeaderBarItem::FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet )
{
    if ( m_pHeadBar )
    {
        if ( m_pHeadBar->IsEnabled() )
            rStateSet.AddState( AccessibleStateType::ENABLED );

        if ( m_pHeadBar->IsVisible() )
        {
            rStateSet.AddState( AccessibleStateType::VISIBLE );
        }
        rStateSet.AddState( AccessibleStateType::SELECTABLE );
        rStateSet.AddState( AccessibleStateType::RESIZABLE );
    }
}

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

awt::Rectangle VCLXAccessibleHeaderBarItem::implGetBounds() throw (RuntimeException)
{
    awt::Rectangle aBounds;
    OExternalLockGuard aGuard( this );

    ::com::sun::star::awt::Size aSize;

    if ( m_pHeadBar )
        aBounds = AWTRectangle( m_pHeadBar->GetItemRect( sal_uInt16( m_nIndexInParent ) ) );

    return aBounds;
}

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

IMPLEMENT_FORWARD_XINTERFACE2( VCLXAccessibleHeaderBarItem, AccessibleExtendedComponentHelper_BASE, VCLXAccessibleHeaderBarItem_BASE )

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

IMPLEMENT_FORWARD_XTYPEPROVIDER2( VCLXAccessibleHeaderBarItem, AccessibleExtendedComponentHelper_BASE, VCLXAccessibleHeaderBarItem_BASE )

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

void VCLXAccessibleHeaderBarItem::disposing()
{
    AccessibleExtendedComponentHelper_BASE::disposing();
}

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

OUString VCLXAccessibleHeaderBarItem::getImplementationName() throw (RuntimeException)
{
    return OUString("com.sun.star.comp.svtools.AccessibleHeaderBarItem");
}

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

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

    return pNames != pEnd;
}

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

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

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

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

    return this;
}

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

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

    return 0;
}

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

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

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

    return Reference< XAccessible >();
}

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

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

    Reference< XAccessible > xParent;
    if ( m_pHeadBar )
    {
        xParent = m_pHeadBar->GetAccessible();
    }

    return xParent;
}

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

sal_Int32 VCLXAccessibleHeaderBarItem::getAccessibleIndexInParent() throw (RuntimeException)
{
    OExternalLockGuard aGuard( this );
    return m_nIndexInParent - 1;
}

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

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

    return AccessibleRole::COLUMN_HEADER;
}

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

OUString VCLXAccessibleHeaderBarItem::getAccessibleDescription() throw (RuntimeException)
{
    OExternalLockGuard aGuard( this );
    OUString sDescription;
    return sDescription;
}

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

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

    OUString sName;
    if(m_pHeadBar)
        sName = m_pHeadBar->GetItemText( sal_uInt16( m_nIndexInParent ) );
    return sName;
}

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

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

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

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

Reference< XAccessibleStateSet > VCLXAccessibleHeaderBarItem::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;
}

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

com::sun::star::lang::Locale VCLXAccessibleHeaderBarItem::getLocale() throw (IllegalAccessibleComponentStateException, RuntimeException)
{
    OExternalLockGuard aGuard( this );

    return Application::GetSettings().GetLanguageTag().getLocale();
}

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

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

    return Reference< XAccessible >();
}

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

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

    sal_Int32 nColor = 0;
    return nColor;
}

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

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

    sal_Int32 nColor = 0;
    return nColor;
}

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

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

    Reference< awt::XFont > xFont;
    return xFont;
}

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

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

    OUString sText;
    return sText;
}

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

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

    OUString sText;
    if ( m_pHeadBar )
        sText = m_pHeadBar->GetQuickHelpText();

    return sText;
}