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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 .
*/
#include <AccessibleContextBase.hxx>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>
#include <tools/gen.hxx>
#include <tools/color.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <svl/hint.hxx>
#include <comphelper/sequence.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <utility>
#include <vcl/unohelp.hxx>
#include <comphelper/accessibleeventnotifier.hxx>
#include <vcl/svapp.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
ScAccessibleContextBase::ScAccessibleContextBase(
uno::Reference<XAccessible> xParent,
const sal_Int16 aRole)
:
mxParent(std::move(xParent)),
maRole(aRole)
{
}
ScAccessibleContextBase::~ScAccessibleContextBase()
{
if (!IsDefunc() && !rBHelper.bInDispose)
{
// increment refcount to prevent double call of dtor
osl_atomic_increment( &m_refCount );
// call dispose to inform object which have a weak reference to this object
dispose();
}
}
void ScAccessibleContextBase::Init()
{
// hold reference to make sure that the destructor is not called
uno::Reference< XAccessibleContext > xKeepAlive(this);
msName = createAccessibleName();
msDescription = createAccessibleDescription();
}
void SAL_CALL ScAccessibleContextBase::disposing()
{
SolarMutexGuard aGuard;
// hold reference to make sure that the destructor is not called
uno::Reference< XAccessibleContext > xKeepAlive(this);
OAccessibleComponentHelper::disposing();
mxParent.clear();
}
//===== SfxListener =====================================================
void ScAccessibleContextBase::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
if (rHint.GetId() == SfxHintId::Dying)
{
// it seems the Broadcaster is dying, since the view is dying
dispose();
}
}
//===== XAccessible =========================================================
uno::Reference< XAccessibleContext> SAL_CALL
ScAccessibleContextBase::getAccessibleContext()
{
return this;
}
// OAccessibleComponentHelper
awt::Rectangle ScAccessibleContextBase::implGetBounds( )
{
return vcl::unohelper::ConvertToAWTRect(GetBoundingBox());
}
//===== XAccessibleComponent ================================================
awt::Point SAL_CALL ScAccessibleContextBase::getLocationOnScreen( )
{
SolarMutexGuard aGuard;
ensureAlive();
return vcl::unohelper::ConvertToAWTPoint(GetBoundingBoxOnScreen().TopLeft());
}
bool ScAccessibleContextBase::isShowing( )
{
SolarMutexGuard aGuard;
ensureAlive();
bool bShowing(false);
if (mxParent.is())
{
uno::Reference<XAccessibleComponent> xParentComponent (mxParent->getAccessibleContext(), uno::UNO_QUERY);
if (xParentComponent.is())
{
tools::Rectangle aParentBounds(
vcl::unohelper::ConvertToVCLRect(xParentComponent->getBounds()));
tools::Rectangle aBounds(vcl::unohelper::ConvertToVCLRect(getBounds()));
bShowing = aBounds.Overlaps(aParentBounds);
}
}
return bShowing;
}
bool ScAccessibleContextBase::isVisible()
{
return true;
}
void SAL_CALL ScAccessibleContextBase::grabFocus( )
{
OSL_FAIL("not implemented");
}
sal_Int32 SAL_CALL ScAccessibleContextBase::getForeground( )
{
return sal_Int32(COL_BLACK);
}
sal_Int32 SAL_CALL ScAccessibleContextBase::getBackground( )
{
return sal_Int32(COL_WHITE);
}
//===== XAccessibleContext ==================================================
uno::Reference<XAccessible> SAL_CALL
ScAccessibleContextBase::getAccessibleParent()
{
return mxParent;
}
sal_Int16 SAL_CALL
ScAccessibleContextBase::getAccessibleRole()
{
return maRole;
}
OUString SAL_CALL
ScAccessibleContextBase::getAccessibleDescription()
{
SolarMutexGuard aGuard;
ensureAlive();
if (msDescription.isEmpty())
{
OUString sDescription(createAccessibleDescription());
if (msDescription != sDescription)
{
const OUString sOldDescription = msDescription;
msDescription = sDescription;
CommitChange(AccessibleEventId::DESCRIPTION_CHANGED, uno::Any(sOldDescription),
uno::Any(sDescription));
}
}
return msDescription;
}
OUString SAL_CALL
ScAccessibleContextBase::getAccessibleName()
{
SolarMutexGuard aGuard;
ensureAlive();
if (msName.isEmpty())
{
OUString sName(createAccessibleName());
OSL_ENSURE(!sName.isEmpty(), "We should give always a name.");
if (msName != sName)
{
const OUString sOldName = msName;
msName = sName;
CommitChange(AccessibleEventId::NAME_CHANGED, uno::Any(sOldName), uno::Any(sName));
}
}
return msName;
}
uno::Reference<XAccessibleRelationSet> SAL_CALL
ScAccessibleContextBase::getAccessibleRelationSet()
{
return new utl::AccessibleRelationSetHelper();
}
sal_Int64 SAL_CALL ScAccessibleContextBase::getAccessibleStateSet()
{
return 0;
}
lang::Locale SAL_CALL
ScAccessibleContextBase::getLocale()
{
SolarMutexGuard aGuard;
ensureAlive();
if (mxParent.is())
{
uno::Reference<XAccessibleContext> xParentContext (
mxParent->getAccessibleContext());
if (xParentContext.is())
return xParentContext->getLocale ();
}
// No locale and no parent. Therefore throw exception to indicate this
// cluelessness.
throw IllegalAccessibleComponentStateException ();
}
// XServiceInfo
OUString SAL_CALL ScAccessibleContextBase::getImplementationName()
{
return u"ScAccessibleContextBase"_ustr;
}
sal_Bool SAL_CALL ScAccessibleContextBase::supportsService(const OUString& sServiceName)
{
return cppu::supportsService(this, sServiceName);
}
uno::Sequence< OUString> SAL_CALL
ScAccessibleContextBase::getSupportedServiceNames()
{
return {u"com.sun.star.accessibility.Accessible"_ustr,
u"com.sun.star.accessibility.AccessibleContext"_ustr};
}
//===== internal ============================================================
OUString
ScAccessibleContextBase::createAccessibleDescription()
{
OSL_FAIL("should be implemented in the abbreviated class");
return OUString();
}
OUString ScAccessibleContextBase::createAccessibleName()
{
OSL_FAIL("should be implemented in the abbreviated class");
return OUString();
}
void ScAccessibleContextBase::CommitChange(const sal_Int16 nEventId, const css::uno::Any& rOldValue,
const css::uno::Any& rNewValue, sal_Int32 nIndexHint)
{
NotifyAccessibleEvent(nEventId, rOldValue, rNewValue, nIndexHint);
}
void ScAccessibleContextBase::CommitFocusGained()
{
CommitChange(AccessibleEventId::STATE_CHANGED, uno::Any(),
uno::Any(AccessibleStateType::FOCUSED));
}
void ScAccessibleContextBase::CommitFocusLost()
{
CommitChange(AccessibleEventId::STATE_CHANGED, uno::Any(AccessibleStateType::FOCUSED),
uno::Any());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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