/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * 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 <controls/table/AccessibleGridControlBase.hxx>

#include <utility>

#include <vcl/svapp.hxx>

#include <vcl/unohelp.hxx>

#include <vcl/window.hxx>

#include <cppuhelper/supportsservice.hxx>

#include <sal/types.h>

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

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

#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>

#include <unotools/accessiblerelationsethelper.hxx>

#include <sal/log.hxx>

using ::com::sun::star::uno::Sequence;

using ::com::sun::star::uno::Any;

using namespace ::com::sun::star;

using namespace ::com::sun::star::accessibility;

using namespace ::comphelper;

using namespace ::vcl;

namespace accessibility {

using namespace com::sun::star::accessibility::AccessibleStateType;

AccessibleGridControlBase::AccessibleGridControlBase(

    css::uno::Reference<css::accessibility::XAccessible> xParent, svt::table::TableControl& rTable,

    AccessibleTableControlObjType eObjType)

    : m_xParent(std::move(xParent))

    , m_aTable(rTable)

    , m_eObjType(eObjType)

{

}

void SAL_CALL AccessibleGridControlBase::disposing()

{

    SolarMutexGuard g;

    OAccessible::disposing();

    m_xParent = nullptr;

    //m_aTable = NULL;

}

// css::accessibility::XAccessibleContext

css::uno::Reference< css::accessibility::XAccessible > SAL_CALL AccessibleGridControlBase::getAccessibleParent()

{

    SolarMutexGuard g;

    ensureAlive();

    return m_xParent;

}

OUString SAL_CALL AccessibleGridControlBase::getAccessibleDescription()

{

    SolarMutexGuard g;

    ensureAlive();

    return m_aTable.GetAccessibleObjectDescription(m_eObjType);

}

OUString SAL_CALL AccessibleGridControlBase::getAccessibleName()

{

    SolarMutexGuard g;

    ensureAlive();

    return m_aTable.GetAccessibleObjectName(m_eObjType, 0, 0);

}

css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL

AccessibleGridControlBase::getAccessibleRelationSet()

{

   SolarMutexGuard g;

   ensureAlive();

   // GridControl does not have relations.

   return new utl::AccessibleRelationSetHelper;

}

sal_Int64 SAL_CALL

AccessibleGridControlBase::getAccessibleStateSet()

{

    SolarMutexGuard aSolarGuard;

    // don't check whether alive -> StateSet may contain DEFUNC

    return implCreateStateSet();

}

lang::Locale SAL_CALL AccessibleGridControlBase::getLocale()

{

    SolarMutexGuard g;

    ensureAlive();

    if( m_xParent.is() )

    {

        css::uno::Reference< css::accessibility::XAccessibleContext >

            xParentContext( m_xParent->getAccessibleContext() );

        if( xParentContext.is() )

            return xParentContext->getLocale();

    }

    throw IllegalAccessibleComponentStateException();

}

// XServiceInfo

sal_Bool SAL_CALL AccessibleGridControlBase::supportsService(

        const OUString& rServiceName )

{

    return cppu::supportsService(this, rServiceName);

}

Sequence< OUString > SAL_CALL AccessibleGridControlBase::getSupportedServiceNames()

{

    return { u"com.sun.star.accessibility.AccessibleContext"_ustr };

}

// internal virtual methods

bool AccessibleGridControlBase::implIsShowing()

{

    bool bShowing = false;

    if( m_xParent.is() )

    {

        css::uno::Reference< css::accessibility::XAccessibleComponent >

            xParentComp( m_xParent->getAccessibleContext(), uno::UNO_QUERY );

        if( xParentComp.is() )

            bShowing = implGetBoundingBox().Overlaps(

                vcl::unohelper::ConvertToVCLRect(xParentComp->getBounds()));

    }

    return bShowing;

}

tools::Rectangle AccessibleGridControlBase::implGetBoundingBox()

{

    // calculate parent-relative position from own and parent's absolute position

    tools::Rectangle aBound(implGetBoundingBoxOnScreen());

    if (!m_xParent.is())

        return aBound;

    uno::Reference<css::accessibility::XAccessibleComponent> xParentComponent(m_xParent->getAccessibleContext(), uno::UNO_QUERY);

    if (!xParentComponent.is())

        return aBound;

    awt::Point aParentPos = xParentComponent->getLocationOnScreen();

    aBound.Move(-aParentPos.X, -aParentPos.Y);

    return aBound;

}

sal_Int64 AccessibleGridControlBase::implCreateStateSet()

{

    sal_Int64 nStateSet = 0;

    if( isAlive() )

    {

        // SHOWING done with m_xParent

        if( implIsShowing() )

            nStateSet |= AccessibleStateType::SHOWING;

        // GridControl fills StateSet with states depending on object type

        m_aTable.FillAccessibleStateSet( nStateSet, getType() );

    }

    else

        nStateSet |= AccessibleStateType::DEFUNC;

    return nStateSet;

}

css::awt::Rectangle AccessibleGridControlBase::implGetBounds()

{

    return vcl::unohelper::ConvertToAWTRect(implGetBoundingBox());

}

void AccessibleGridControlBase::commitEvent(

        sal_Int16 _nEventId, const Any& _rNewValue, const Any& _rOldValue )

{

    NotifyAccessibleEvent(_nEventId, _rOldValue, _rNewValue);

}

sal_Int16 SAL_CALL AccessibleGridControlBase::getAccessibleRole()

{

    ensureAlive();

    sal_Int16 nRole = AccessibleRole::UNKNOWN;

    switch ( m_eObjType )

    {

        case AccessibleTableControlObjType::ROWHEADERCELL:

        nRole = AccessibleRole::ROW_HEADER;

        break;

    case AccessibleTableControlObjType::COLUMNHEADERCELL:

        nRole = AccessibleRole::COLUMN_HEADER;

        break;

    case AccessibleTableControlObjType::COLUMNHEADERBAR:

    case AccessibleTableControlObjType::ROWHEADERBAR:

    case AccessibleTableControlObjType::TABLE:

        nRole = AccessibleRole::TABLE;

        break;

    case AccessibleTableControlObjType::TABLECELL:

        nRole = AccessibleRole::TABLE_CELL;

        break;

    case AccessibleTableControlObjType::GRIDCONTROL:

        nRole = AccessibleRole::PANEL;

        break;

    }

    return nRole;

}

css::uno::Reference<css::accessibility::XAccessible > SAL_CALL AccessibleGridControlBase::getAccessibleAtPoint( const css::awt::Point& )

{

    return nullptr;

}

sal_Int32 SAL_CALL AccessibleGridControlBase::getForeground(  )

{

    SolarMutexGuard aSolarGuard;

    ensureAlive();

    Color nColor;

    if (m_aTable.IsControlForeground())

        nColor = m_aTable.GetControlForeground();

    else

    {

        vcl::Font aFont;

        if (m_aTable.IsControlFont() )

            aFont = m_aTable.GetControlFont();

        else

            aFont = m_aTable.GetFont();

        nColor = aFont.GetColor();

    }

    return sal_Int32(nColor);

}

sal_Int32 SAL_CALL AccessibleGridControlBase::getBackground(  )

{

    SolarMutexGuard aSolarGuard;

    ensureAlive();

    Color nColor;

    if (m_aTable.IsControlBackground())

        nColor = m_aTable.GetControlBackground();

    else

        nColor = m_aTable.GetBackground().GetColor();

    return sal_Int32(nColor);

}

} // namespace accessibility

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