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375 | /* -*- 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 <AccessibleSmElementsControl.hxx>
#include <AccessibleSmElement.hxx>
#include <ElementsDockingWindow.hxx>
#include <smmod.hxx>
#include <comphelper/accessiblewrapper.hxx>
#include <comphelper/processfactory.hxx>
#include <comphelper/types.hxx>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/typeprovider.hxx>
#include <o3tl/safeint.hxx>
#include <toolkit/helper/convert.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <vcl/svapp.hxx>
#include <vcl/vclevent.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
using OContextEntryGuard = ::comphelper::OContextEntryGuard;
using OExternalLockGuard = ::comphelper::OExternalLockGuard;
// AccessibleSmElementsControl
AccessibleSmElementsControl::AccessibleSmElementsControl(SmElementsControl& rControl)
: m_pControl(&rControl)
{
}
AccessibleSmElementsControl::~AccessibleSmElementsControl() {}
void AccessibleSmElementsControl::UpdateFocus(sal_uInt16 nPos)
{
const bool bSetFocus = (nPos == SAL_MAX_UINT16);
// submit events only if the widget has the focus to avoid sending events due to mouse move
if (!m_pControl || (bSetFocus && !m_pControl->HasFocus()))
return;
if (bSetFocus)
nPos = m_pControl->itemHighlighted() - m_pControl->itemOffset();
if (nPos < m_aAccessibleChildren.size())
{
const auto& rxChild = m_aAccessibleChildren[nPos];
if (rxChild.is())
rxChild->SetFocus(bSetFocus);
}
}
void AccessibleSmElementsControl::ReleaseAllItems()
{
if (m_aAccessibleChildren.empty())
return;
m_aAccessibleChildren.clear();
// The original toolbox accessibility code uses individual NAME_CHANGED
// events in a loop. We can't do this, because on each remove event the
// list of known children is rebuild. But since we rely on the child
// count of the SmElementsControl, we'll always have no or all items.
// In the latter case this would automatically recreate all items!
assert(m_pControl && m_pControl->itemCount() == 0);
NotifyAccessibleEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN, uno::Any(), uno::Any());
}
void AccessibleSmElementsControl::AddAllItems()
{
assert(m_pControl);
if (!m_pControl)
return;
uno::Any aNewName(getAccessibleName());
NotifyAccessibleEvent(AccessibleEventId::NAME_CHANGED, uno::Any(), aNewName);
// register the new items
sal_uInt16 nCount = getAccessibleChildCount();
for (sal_uInt16 i = 0; i < nCount; ++i)
{
uno::Any aNewValue;
aNewValue <<= getAccessibleChild(static_cast<sal_Int32>(i));
NotifyAccessibleEvent(AccessibleEventId::CHILD, uno::Any(), aNewValue);
}
}
IMPLEMENT_FORWARD_XINTERFACE2(AccessibleSmElementsControl, comphelper::OAccessibleComponentHelper,<--- There is an unknown macro here somewhere. Configuration is required. If IMPLEMENT_FORWARD_XINTERFACE2 is a macro then please configure it.
AccessibleSmElementsControl_BASE)
IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleSmElementsControl,
comphelper::OAccessibleComponentHelper,
AccessibleSmElementsControl_BASE)
// XAccessible
uno::Reference<XAccessibleContext> AccessibleSmElementsControl::getAccessibleContext()
{
return this;
}
// XComponent
void AccessibleSmElementsControl::disposing()
{
comphelper::OAccessibleComponentHelper::disposing();
m_aAccessibleChildren.clear();
}
void AccessibleSmElementsControl::grabFocus()
{
SolarMutexGuard aGuard;
if (!m_pControl)
throw uno::RuntimeException();
m_pControl->GrabFocus();
}
sal_Int32 AccessibleSmElementsControl::getForeground()
{
SolarMutexGuard aGuard;
return static_cast<sal_Int32>(SmElementsControl::GetTextColor());
}
sal_Int32 AccessibleSmElementsControl::getBackground()
{
SolarMutexGuard aGuard;
Color nCol = SmElementsControl::GetControlBackground();
return static_cast<sal_Int32>(nCol);
}
// XServiceInfo
OUString AccessibleSmElementsControl::getImplementationName()
{
return "com.sun.star.comp.toolkit.AccessibleSmElementsControl";
}
sal_Bool AccessibleSmElementsControl::supportsService(const OUString& rServiceName)
{
return cppu::supportsService(this, rServiceName);
}
uno::Sequence<OUString> AccessibleSmElementsControl::getSupportedServiceNames()
{
return { "com.sun.star.accessibility.AccessibleContext",
"com.sun.star.accessibility.AccessibleComponent",
"com.sun.star.accessibility.AccessibleSelection",
"com.sun.star.accessibility.AccessibleSmElementsControl" };
}
// XAccessibleContext
sal_Int32 AccessibleSmElementsControl::getAccessibleChildCount()
{
comphelper::OExternalLockGuard aGuard(this);
sal_Int32 nCount = 0;
if (m_pControl)
{
nCount = m_pControl->itemCount();
if (m_aAccessibleChildren.size() != sal_uInt16(nCount))
m_aAccessibleChildren.resize(nCount);
}
return nCount;
}
uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleChild(sal_Int32 c)
{
comphelper::OExternalLockGuard aGuard(this);
if (c < 0 || c >= getAccessibleChildCount())
throw lang::IndexOutOfBoundsException();
rtl::Reference<AccessibleSmElement> xChild = m_aAccessibleChildren[c];
const sal_uInt16 nItemId = m_pControl->itemOffset() + c;
if (xChild.is() && xChild->itemId() != nItemId)
xChild.clear();
if (!xChild.is())
{
sal_uInt16 nHighlightItemId = m_pControl->itemHighlighted();
AccessibleSmElement* pChild = new AccessibleSmElement(m_pControl, nItemId, c);
if (pChild->itemId() == nHighlightItemId)
pChild->SetFocus(true);
m_aAccessibleChildren[c] = pChild;
xChild = pChild;
}
return xChild.get();
}
uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleParent()
{
SolarMutexGuard aGuard;
if (!m_pControl)
throw uno::RuntimeException();
return m_pControl->GetDrawingArea()->get_accessible_parent();
}
uno::Reference<XAccessible>
AccessibleSmElementsControl::getAccessibleAtPoint(const awt::Point& rPoint)
{
comphelper::OExternalLockGuard aGuard(this);
uno::Reference<XAccessible> xAccessible;
if (m_pControl)
{
sal_uInt16 nPos = m_pControl->itemAtPos(VCLPoint(rPoint));
nPos -= m_pControl->itemOffset();
if (nPos <= m_aAccessibleChildren.size())
xAccessible = getAccessibleChild(nPos);
}
return xAccessible;
}
sal_Int16 AccessibleSmElementsControl::getAccessibleRole() { return AccessibleRole::SCROLL_PANE; }
OUString AccessibleSmElementsControl::getAccessibleDescription() { return OUString(); }
OUString AccessibleSmElementsControl::getAccessibleName()
{
SolarMutexGuard aGuard;
OUString aName;
if (m_pControl)
aName = SmResId(m_pControl->elementSetId().getStr());
return aName;
}
// XAccessibleSelection
void AccessibleSmElementsControl::selectAccessibleChild(sal_Int32 nChildIndex)
{
OExternalLockGuard aGuard(this);
if ((!m_pControl) || nChildIndex < 0
|| o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
throw lang::IndexOutOfBoundsException();
m_pControl->setItemHighlighted(nChildIndex);
}
sal_Bool AccessibleSmElementsControl::isAccessibleChildSelected(sal_Int32 nChildIndex)
{
OExternalLockGuard aGuard(this);
if ((!m_pControl) || nChildIndex < 0
|| o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
throw lang::IndexOutOfBoundsException();
return (m_pControl->itemHighlighted() == nChildIndex);
}
void AccessibleSmElementsControl::clearAccessibleSelection()
{
OExternalLockGuard aGuard(this);
if (m_pControl)
m_pControl->setItemHighlighted(SAL_MAX_UINT16);
}
void AccessibleSmElementsControl::selectAllAccessibleChildren()
{
// intentionally empty
}
sal_Int32 AccessibleSmElementsControl::getSelectedAccessibleChildCount()
{
OExternalLockGuard aGuard(this);
sal_Int32 nRet = 0;
if (m_pControl
&& (m_pControl->itemHighlighted() - m_pControl->itemOffset()) < getAccessibleChildCount())
nRet = 1;
return nRet;
}
uno::Reference<XAccessible>
AccessibleSmElementsControl::getSelectedAccessibleChild(sal_Int32 nSelectedChildIndex)
{
OExternalLockGuard aGuard(this);
if (nSelectedChildIndex != 0 || !m_pControl)
throw lang::IndexOutOfBoundsException();
return getAccessibleChild(m_pControl->itemHighlighted() - m_pControl->itemOffset());
}
void AccessibleSmElementsControl::deselectAccessibleChild(sal_Int32 nChildIndex)
{
OExternalLockGuard aGuard(this);
if (nChildIndex != 0 || nChildIndex >= getAccessibleChildCount())
throw lang::IndexOutOfBoundsException();
clearAccessibleSelection(); // there can be just one selected child
}
void AccessibleSmElementsControl::TestControl()
{
if (!m_pControl)
throw uno::RuntimeException();
}
awt::Rectangle AccessibleSmElementsControl::implGetBounds()
{
SolarMutexGuard aGuard;
TestControl();
awt::Rectangle aRet;
const Point aOutPos;
Size aOutSize(m_pControl->GetOutputSizePixel());
aRet.X = aOutPos.X();
aRet.Y = aOutPos.Y();
aRet.Width = aOutSize.Width();
aRet.Height = aOutSize.Height();
return aRet;
}
sal_Bool AccessibleSmElementsControl::containsPoint(const awt::Point& aPoint)
{
SolarMutexGuard aGuard;
TestControl();
Size aSz(m_pControl->GetOutputSizePixel());
return aPoint.X >= 0 && aPoint.Y >= 0 && aPoint.X < aSz.Width() && aPoint.Y < aSz.Height();
}
uno::Reference<XAccessibleRelationSet> AccessibleSmElementsControl::getAccessibleRelationSet()
{
uno::Reference<XAccessibleRelationSet> xRelSet = new utl::AccessibleRelationSetHelper();
return xRelSet; // empty relation set
}
uno::Reference<XAccessibleStateSet> AccessibleSmElementsControl::getAccessibleStateSet()
{
SolarMutexGuard aGuard;
::utl::AccessibleStateSetHelper* pStateSet = new ::utl::AccessibleStateSetHelper;
uno::Reference<XAccessibleStateSet> xStateSet(pStateSet);
if (!m_pControl)
pStateSet->AddState(AccessibleStateType::DEFUNC);
else
{
pStateSet->AddState(AccessibleStateType::ENABLED);
pStateSet->AddState(AccessibleStateType::FOCUSABLE);
if (m_pControl->HasFocus())
pStateSet->AddState(AccessibleStateType::FOCUSED);
if (m_pControl->IsActive())
pStateSet->AddState(AccessibleStateType::ACTIVE);
if (m_pControl->IsVisible())
pStateSet->AddState(AccessibleStateType::SHOWING);
if (m_pControl->IsReallyVisible())
pStateSet->AddState(AccessibleStateType::VISIBLE);
if (COL_TRANSPARENT != SmElementsControl::GetControlBackground())
pStateSet->AddState(AccessibleStateType::OPAQUE);
}
return xStateSet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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