AccessibleBrowseBox.hxx

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/* -*- 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 .
 */
 
 
#pragma once
 
#include <extended/AccessibleBrowseBoxBase.hxx>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/weakref.hxx>
#include <vcl/accessibletableprovider.hxx>
#include <mutex>
 
namespace accessibility {
 
    class AccessibleBrowseBoxHeaderBar;
    class AccessibleBrowseBoxTable;
 
 
class AccessibleBrowseBox : public AccessibleBrowseBoxBase
{
    friend class AccessibleBrowseBoxAccess;
 
protected:
    AccessibleBrowseBox(
        const css::uno::Reference< css::accessibility::XAccessible >& _rxParent,
        const css::uno::Reference< css::accessibility::XAccessible >& _rxCreator,
        ::vcl::IAccessibleTableProvider& _rBrowseBox
    );
 
    virtual ~AccessibleBrowseBox() override;
 
    void    setCreator(
        const css::uno::Reference< css::accessibility::XAccessible >& _rxCreator
    );
 
    using AccessibleBrowseBoxBase::disposing;
    virtual void SAL_CALL disposing() override;
 
protected:
    // XAccessibleContext
 
    virtual sal_Int64 SAL_CALL getAccessibleChildCount() override;
 
    virtual css::uno::Reference<
        css::accessibility::XAccessible > SAL_CALL
    getAccessibleChild( sal_Int64 nChildIndex ) override;
 
    // XAccessibleComponent
 
    virtual css::uno::Reference<
        css::accessibility::XAccessible > SAL_CALL
    getAccessibleAtPoint( const css::awt::Point& rPoint ) override;
 
    virtual void SAL_CALL grabFocus() override;
 
    // XServiceInfo
 
    virtual OUString SAL_CALL getImplementationName() override;
 
public:
    // helper functions
    void commitHeaderBarEvent(sal_Int16 nEventId,
            const css::uno::Any& rNewValue,
            const css::uno::Any& rOldValue, bool _bColumnHeaderBar);
 
    // helper functions
    void commitTableEvent(sal_Int16 nEventId,
            const css::uno::Any& rNewValue,
            const css::uno::Any& rOldValue);
 
    css::uno::Reference<
        css::accessibility::XAccessible >
        getHeaderBar( AccessibleBrowseBoxObjType _eObjType )
        {
            return implGetHeaderBar(_eObjType);
        }
 
    css::uno::Reference<
        css::accessibility::XAccessible >
        getTable( )
        {
            return implGetTable();
        }
 
protected:
    // internal virtual methods
 
    virtual tools::Rectangle implGetBoundingBox() override;
    virtual tools::Rectangle implGetBoundingBoxOnScreen() override;
 
    // internal helper methods
 
    css::uno::Reference<
        css::accessibility::XAccessible > implGetTable();
 
    css::uno::Reference<
        css::accessibility::XAccessible >
        implGetHeaderBar( AccessibleBrowseBoxObjType eObjType );
 
    css::uno::Reference<
        css::accessibility::XAccessible >
    implGetFixedChild( sal_Int64 nChildIndex );
 
    virtual rtl::Reference<AccessibleBrowseBoxTable> createAccessibleTable();
 
private:
    css::uno::WeakReference< css::accessibility::XAccessible >  m_aCreator;
 
    rtl::Reference<AccessibleBrowseBoxTable>                    mxTable;
 
    rtl::Reference<AccessibleBrowseBoxHeaderBar>                mxRowHeaderBar;
 
    rtl::Reference<AccessibleBrowseBoxHeaderBar>                mxColumnHeaderBar;
};
 
 
class AccessibleBrowseBoxAccess final :
    public cppu::WeakImplHelper<css::accessibility::XAccessible>,
    public ::vcl::IAccessibleBrowseBox
{
private:
    std::mutex                          m_aMutex;
    css::uno::Reference< css::accessibility::XAccessible >
                                        m_xParent;
    ::vcl::IAccessibleTableProvider&    m_rBrowseBox;
 
    rtl::Reference<AccessibleBrowseBox> m_xContext;
 
public:
    AccessibleBrowseBoxAccess(
        css::uno::Reference< css::accessibility::XAccessible > _xParent,
        ::vcl::IAccessibleTableProvider& _rBrowseBox
    );
 
    AccessibleBrowseBox*            getContext() { return m_xContext.get(); }
 
private:
    virtual ~AccessibleBrowseBoxAccess() override;
 
    // XAccessible
    virtual css::uno::Reference< css::accessibility::XAccessibleContext >
        SAL_CALL getAccessibleContext() override;
 
    // IAccessibleBrowseBox
    virtual css::uno::Reference< css::accessibility::XAccessible >
        getMyself() override
    {
        return this;
    }
    void dispose() override;
    virtual bool isAlive() const override
    {
        return m_xContext.is() && m_xContext->isAlive();
    }
    virtual css::uno::Reference< css::accessibility::XAccessible >
        getHeaderBar( AccessibleBrowseBoxObjType _eObjType ) override
    {
        css::uno::Reference< css::accessibility::XAccessible > xAccessible;
        AccessibleBrowseBox* pContext( getContext() );
        if ( pContext )
            xAccessible = pContext->getHeaderBar( _eObjType );
        return xAccessible;
    }
    virtual css::uno::Reference< css::accessibility::XAccessible >
        getTable() override
    {
        css::uno::Reference< css::accessibility::XAccessible > xAccessible;
        AccessibleBrowseBox* pContext( getContext() );
        if ( pContext )
            xAccessible = pContext->getTable();
        return xAccessible;
    }
    virtual void commitHeaderBarEvent( sal_Int16 nEventId, const css::uno::Any& rNewValue,
        const css::uno::Any& rOldValue, bool _bColumnHeaderBar ) override
    {
        AccessibleBrowseBox* pContext( getContext() );
        if ( pContext )
            pContext->commitHeaderBarEvent( nEventId, rNewValue, rOldValue, _bColumnHeaderBar );
    }
    virtual void commitTableEvent( sal_Int16 nEventId,
        const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override
    {
        AccessibleBrowseBox* pContext( getContext() );
        if ( pContext )
            pContext->commitTableEvent( nEventId, rNewValue, rOldValue );
    }
    virtual void commitEvent( sal_Int16 nEventId,
        const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override
    {
        AccessibleBrowseBox* pContext( getContext() );
        if ( pContext )
            pContext->commitEvent( nEventId, rNewValue, rOldValue );
    }
 
private:
    AccessibleBrowseBoxAccess( const AccessibleBrowseBoxAccess& ) = delete;
    AccessibleBrowseBoxAccess& operator=( const AccessibleBrowseBoxAccess& ) = delete;
};
 
 
} // namespace accessibility
 
 
 
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