accessiblemenucomponent.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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 *   except in compliance with the License. You may obtain a copy of
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#include <standard/accessiblemenucomponent.hxx>
 
#include <toolkit/awt/vclxfont.hxx>
#include <toolkit/helper/convert.hxx>
 
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/awt/XDevice.hpp>
#include <com/sun/star/awt/XVclWindowPeer.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <comphelper/accessiblecontexthelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <vcl/svapp.hxx>
#include <vcl/window.hxx>
#include <vcl/menu.hxx>
#include <vcl/settings.hxx>
#include <i18nlangtag/languagetag.hxx>
 
using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star;
using namespace ::comphelper;
 
 
 
 
bool OAccessibleMenuComponent::IsEnabled()
{
    return true;
}
 
 
bool OAccessibleMenuComponent::IsVisible()
{
    bool bVisible = false;
 
    if ( m_pMenu )
        bVisible = m_pMenu->IsMenuVisible();
 
    return bVisible;
}
 
 
void OAccessibleMenuComponent::FillAccessibleStateSet( sal_Int64& rStateSet )
{
    if ( IsEnabled() )
    {
        rStateSet |= AccessibleStateType::ENABLED;
        rStateSet |= AccessibleStateType::SENSITIVE;
    }
 
    rStateSet |= AccessibleStateType::FOCUSABLE;
 
    if ( IsFocused() )
        rStateSet |= AccessibleStateType::FOCUSED;
 
    if ( IsVisible() )
    {
        rStateSet |= AccessibleStateType::VISIBLE;
        rStateSet |= AccessibleStateType::SHOWING;
    }
 
    rStateSet |= AccessibleStateType::OPAQUE;
}
 
 
// OCommonAccessibleComponent
 
 
awt::Rectangle OAccessibleMenuComponent::implGetBounds()
{
    awt::Rectangle aBounds( 0, 0, 0, 0 );
 
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
        {
            // get bounding rectangle of the window in screen coordinates
            tools::Rectangle aRect = pWindow->GetWindowExtentsAbsolute();
            aBounds = AWTRectangle( aRect );
 
            // get position of the accessible parent in screen coordinates
            Reference< XAccessible > xParent = getAccessibleParent();
            if ( xParent.is() )
            {
                Reference< XAccessibleComponent > xParentComponent( xParent->getAccessibleContext(), UNO_QUERY );
                if ( xParentComponent.is() )
                {
                    awt::Point aParentScreenLoc = xParentComponent->getLocationOnScreen();
 
                    // calculate position of the window relative to the accessible parent
                    aBounds.X -= aParentScreenLoc.X;
                    aBounds.Y -= aParentScreenLoc.Y;
                }
            }
        }
    }
 
    return aBounds;
}
 
 
// XAccessibleContext
 
 
sal_Int64 OAccessibleMenuComponent::getAccessibleChildCount()
{
    OExternalLockGuard aGuard( this );
 
    return GetChildCount();
}
 
 
Reference< XAccessible > OAccessibleMenuComponent::getAccessibleChild( sal_Int64 i )
{
    OExternalLockGuard aGuard( this );
 
    if ( i < 0 || i >= GetChildCount() )
        throw IndexOutOfBoundsException();
 
    return GetChild( i );
}
 
 
Reference< XAccessible > OAccessibleMenuComponent::getAccessibleParent(  )
{
    OExternalLockGuard aGuard( this );
 
    Reference< XAccessible > xParent;
 
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
        {
            vcl::Window* pParent = pWindow->GetAccessibleParentWindow();
            if ( pParent )
                xParent = pParent->GetAccessible();
        }
    }
 
    return xParent;
}
 
 
sal_Int16 OAccessibleMenuComponent::getAccessibleRole(  )
{
    OExternalLockGuard aGuard( this );
 
    return AccessibleRole::UNKNOWN;
}
 
 
OUString OAccessibleMenuComponent::getAccessibleDescription( )
{
    OExternalLockGuard aGuard( this );
 
    OUString sDescription;
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
            sDescription = pWindow->GetAccessibleDescription();
    }
 
    return sDescription;
}
 
 
OUString OAccessibleMenuComponent::getAccessibleName(  )
{
    OExternalLockGuard aGuard( this );
 
    return OUString();
}
 
 
Reference< XAccessibleRelationSet > OAccessibleMenuComponent::getAccessibleRelationSet(  )
{
    OExternalLockGuard aGuard( this );
 
    return new utl::AccessibleRelationSetHelper;
}
 
 
Locale OAccessibleMenuComponent::getLocale(  )
{
    OExternalLockGuard aGuard( this );
 
    return Application::GetSettings().GetLanguageTag().getLocale();
}
 
 
// XAccessibleComponent
 
 
Reference< XAccessible > OAccessibleMenuComponent::getAccessibleAtPoint( const awt::Point& rPoint )
{
    OExternalLockGuard aGuard( this );
 
    return GetChildAt( rPoint );
}
 
 
awt::Point OAccessibleMenuComponent::getLocationOnScreen(  )
{
    OExternalLockGuard aGuard( this );
 
    awt::Point aPos;
 
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
        {
            tools::Rectangle aRect = pWindow->GetWindowExtentsAbsolute();
            aPos = AWTPoint( aRect.TopLeft() );
        }
    }
 
    return aPos;
}
 
 
void OAccessibleMenuComponent::grabFocus(  )
{
    OExternalLockGuard aGuard( this );
 
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
            pWindow->GrabFocus();
    }
}
 
 
sal_Int32 OAccessibleMenuComponent::getForeground(  )
{
    OExternalLockGuard aGuard( this );
 
    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
    Color nColor = rStyleSettings.GetMenuTextColor();
 
    return sal_Int32(nColor);
}
 
 
sal_Int32 OAccessibleMenuComponent::getBackground(  )
{
    OExternalLockGuard aGuard( this );
 
    return 0;
}
 
 
// XAccessibleExtendedComponent
 
 
Reference< awt::XFont > OAccessibleMenuComponent::getFont(  )
{
    OExternalLockGuard aGuard( this );
 
    Reference< awt::XFont > xFont;
 
    if ( m_pMenu )
    {
        vcl::Window* pWindow = m_pMenu->GetWindow();
        if ( pWindow )
        {
            Reference< awt::XDevice > xDev( pWindow->GetComponentInterface(), UNO_QUERY );
            if ( xDev.is() )
            {
                const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
                rtl::Reference<VCLXFont> pVCLXFont = new VCLXFont;
                pVCLXFont->Init( *xDev, rStyleSettings.GetMenuFont() );
                xFont = pVCLXFont;
            }
        }
    }
 
    return xFont;
}
 
 
OUString OAccessibleMenuComponent::getTitledBorderText(  )
{
    OExternalLockGuard aGuard( this );
 
    return OUString();
}
 
 
OUString OAccessibleMenuComponent::getToolTipText(  )
{
    OExternalLockGuard aGuard( this );
 
    return OUString();
}
 
 
// XAccessibleSelection
 
 
void OAccessibleMenuComponent::selectAccessibleChild( sal_Int64 nChildIndex )
{
    OExternalLockGuard aGuard( this );
 
    if ( nChildIndex < 0 || nChildIndex >= GetChildCount() )
        throw IndexOutOfBoundsException();
 
    SelectChild( nChildIndex );
}
 
 
sal_Bool OAccessibleMenuComponent::isAccessibleChildSelected( sal_Int64 nChildIndex )
{
    OExternalLockGuard aGuard( this );
 
    if ( nChildIndex < 0 || nChildIndex >= GetChildCount() )
        throw IndexOutOfBoundsException();
 
    return IsChildSelected( nChildIndex );
}
 
 
void OAccessibleMenuComponent::clearAccessibleSelection(  )
{
    OExternalLockGuard aGuard( this );
 
    DeSelectAll();
}
 
 
void OAccessibleMenuComponent::selectAllAccessibleChildren(  )
{
    // This method makes no sense in a menu, and so does nothing.
}
 
 
sal_Int64 OAccessibleMenuComponent::getSelectedAccessibleChildCount(  )
{
    OExternalLockGuard aGuard( this );
 
    sal_Int64 nRet = 0;
 
    for ( sal_Int64 i = 0, nCount = GetChildCount(); i < nCount; i++ )
    {
        if ( IsChildSelected( i ) )
            ++nRet;
    }
 
    return nRet;
}
 
 
Reference< XAccessible > OAccessibleMenuComponent::getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex )
{
    OExternalLockGuard aGuard( this );
 
    if ( nSelectedChildIndex < 0 || nSelectedChildIndex >= getSelectedAccessibleChildCount() )
        throw IndexOutOfBoundsException();
 
    Reference< XAccessible > xChild;
 
    for ( sal_Int64 i = 0, j = 0, nCount = GetChildCount(); i < nCount; i++ )
    {
        if ( IsChildSelected( i ) && ( j++ == nSelectedChildIndex ) )
        {
            xChild = GetChild( i );
            break;
        }
    }
 
    return xChild;
}
 
 
void OAccessibleMenuComponent::deselectAccessibleChild( sal_Int64 nChildIndex )
{
    OExternalLockGuard aGuard( this );
 
    if ( nChildIndex < 0 || nChildIndex >= GetChildCount() )
        throw IndexOutOfBoundsException();
 
    DeSelectAll();
}
 
 
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