/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the Collabora Office 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 <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <comphelper/accessibleeventnotifier.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <utility>
#include <vcl/svapp.hxx>
#include <vcl/unohelp.hxx>
#include <osl/mutex.hxx>
#include <tools/gen.hxx>

#include <svtools/ruler.hxx>
#include "accessibleruler.hxx"

using namespace ::cppu;
using namespace ::osl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::accessibility;


SvtRulerAccessible::SvtRulerAccessible(uno::Reference<XAccessible> xParent, Ruler& rRepr,
                                       OUString aName)
    : msName(std::move(aName))
    , mxParent(std::move(xParent))
    , mpRepr(&rRepr)
{
}

//=====  XAccessibleComponent  ================================================

uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleAtPoint( const awt::Point& )
{
    SolarMutexGuard aSolarGuard;
    ensureAlive();

    return uno::Reference< XAccessible >();
}

//=====  XAccessibleContext  ==================================================
sal_Int64 SAL_CALL SvtRulerAccessible::getAccessibleChildCount()
{
    SolarMutexGuard aSolarGuard;
    ensureAlive();

    return 0;
}

uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleChild( sal_Int64 )
{
    SolarMutexGuard aSolarGuard;
    uno::Reference< XAccessible >   xChild ;

    return xChild;
}

uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleParent()
{
    SolarMutexGuard aSolarGuard;
    return mxParent;
}

sal_Int16 SAL_CALL SvtRulerAccessible::getAccessibleRole()
{
    SolarMutexGuard aSolarGuard;
    return AccessibleRole::RULER;
}

OUString SAL_CALL SvtRulerAccessible::getAccessibleDescription()
{
    SolarMutexGuard aSolarGuard;
    return OUString();
}

OUString SAL_CALL SvtRulerAccessible::getAccessibleName()
{
    SolarMutexGuard aSolarGuard;
    return msName;
}

/** Return empty uno::Reference to indicate that the relation set is not
    supported.
*/
uno::Reference< XAccessibleRelationSet > SAL_CALL SvtRulerAccessible::getAccessibleRelationSet()
{
    SolarMutexGuard aSolarGuard;
    return uno::Reference< XAccessibleRelationSet >();
}


sal_Int64 SAL_CALL SvtRulerAccessible::getAccessibleStateSet()
{
    SolarMutexGuard aSolarGuard;

    sal_Int64 nStateSet = 0;

    if (isAlive())
    {
        nStateSet |= AccessibleStateType::ENABLED;

        nStateSet |= AccessibleStateType::SHOWING;

        if( mpRepr->IsVisible() )
            nStateSet |= AccessibleStateType::VISIBLE;

        if ( mpRepr->GetStyle() & WB_HORZ )
            nStateSet |= AccessibleStateType::HORIZONTAL;
        else
            nStateSet |= AccessibleStateType::VERTICAL;
    }

    return nStateSet;
}

void SAL_CALL SvtRulerAccessible::grabFocus()
{
    SolarMutexGuard aSolarGuard;

    if (!mpRepr)
        throw css::lang::DisposedException(OUString(), static_cast<cppu::OWeakObject*>(this));

    mpRepr->GrabFocus();
}

sal_Int32 SvtRulerAccessible::getForeground(  )
{
    SolarMutexGuard aSolarGuard;

    if (!mpRepr)
        throw css::lang::DisposedException(OUString(), static_cast<cppu::OWeakObject*>(this));

    return sal_Int32(mpRepr->GetControlForeground());
}
sal_Int32 SvtRulerAccessible::getBackground(  )
{
    SolarMutexGuard aSolarGuard;

    if (!mpRepr)
        throw css::lang::DisposedException(OUString(), static_cast<cppu::OWeakObject*>(this));

    return sal_Int32(mpRepr->GetControlBackground());
}

void SAL_CALL SvtRulerAccessible::disposing()
{
    mpRepr = nullptr;      // object dies with representation

    comphelper::OAccessible::disposing();

    mxParent.clear();
}

awt::Rectangle SvtRulerAccessible::implGetBounds()
{
    if (!mpRepr)
        throw css::lang::DisposedException(OUString(), static_cast<cppu::OWeakObject*>(this));

    return vcl::unohelper::ConvertToAWTRect(
        tools::Rectangle(mpRepr->GetPosPixel(), mpRepr->GetSizePixel()));
}

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