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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 <sal/config.h>
#include <memory>
#include <utility>
#include "scitems.hxx"
#include <editeng/eeitem.hxx>
#include <tools/gen.hxx>
#include "AccessibleText.hxx"
#include "editsrc.hxx"
#include "AccessiblePreviewCell.hxx"
#include "AccessibilityHints.hxx"
#include "prevwsh.hxx"
#include "prevloc.hxx"
#include "document.hxx"
#include <svx/AccessibleTextHelper.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <editeng/brushitem.hxx>
#include <vcl/window.hxx>
#include <vcl/svapp.hxx>
#include <toolkit/helper/convert.hxx>
#include <comphelper/servicehelper.hxx>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <o3tl/make_unique.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
//===== internal ============================================================
ScAccessiblePreviewCell::ScAccessiblePreviewCell( const css::uno::Reference<css::accessibility::XAccessible>& rxParent,
ScPreviewShell* pViewShell,
/* const */ ScAddress& rCellAddress,
sal_Int32 nIndex ) :
ScAccessibleCellBase( rxParent, ( pViewShell ? &pViewShell->GetDocument() : nullptr ), rCellAddress, nIndex ),
mpViewShell( pViewShell ),
mpTextHelper(nullptr)
{
if (mpViewShell)
mpViewShell->AddAccessibilityObject(*this);
}
ScAccessiblePreviewCell::~ScAccessiblePreviewCell()
{
if (!ScAccessibleContextBase::IsDefunc() && !rBHelper.bInDispose)
{
// increment refcount to prevent double call off dtor
osl_atomic_increment( &m_refCount );
// call dispose to inform object which have a weak reference to this object
dispose();
}
}
void SAL_CALL ScAccessiblePreviewCell::disposing()
{
SolarMutexGuard aGuard;
if (mpViewShell)
{
mpViewShell->RemoveAccessibilityObject(*this);
mpViewShell = nullptr;
}
if (mpTextHelper)
DELETEZ(mpTextHelper);
ScAccessibleCellBase::disposing();
}
void ScAccessiblePreviewCell::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
{
const SfxSimpleHint* pSimpleHint = dynamic_cast<const SfxSimpleHint*>(&rHint);
if (pSimpleHint && pSimpleHint->GetId() == SC_HINT_ACC_VISAREACHANGED)
{
if (mpTextHelper)
mpTextHelper->UpdateChildren();
}
ScAccessibleContextBase::Notify(rBC, rHint);
}
//===== XAccessibleComponent ============================================
uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleAtPoint( const awt::Point& rPoint )
throw (uno::RuntimeException, std::exception)
{
uno::Reference<XAccessible> xRet;
if (containsPoint(rPoint))
{
SolarMutexGuard aGuard;
IsObjectValid();
if(!mpTextHelper)
CreateTextHelper();
xRet = mpTextHelper->GetAt(rPoint);
}
return xRet;
}
void SAL_CALL ScAccessiblePreviewCell::grabFocus() throw (uno::RuntimeException, std::exception)
{
SolarMutexGuard aGuard;
IsObjectValid();
if (getAccessibleParent().is())
{
uno::Reference<XAccessibleComponent> xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY);
if (xAccessibleComponent.is())
xAccessibleComponent->grabFocus();
}
}
//===== XAccessibleContext ==============================================
sal_Int32 SAL_CALL ScAccessiblePreviewCell::getAccessibleChildCount() throw(uno::RuntimeException, std::exception)
{
SolarMutexGuard aGuard;
IsObjectValid();
if (!mpTextHelper)
CreateTextHelper();
return mpTextHelper->GetChildCount();
}
uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleChild(sal_Int32 nIndex)
throw (uno::RuntimeException, lang::IndexOutOfBoundsException, std::exception)
{
SolarMutexGuard aGuard;
IsObjectValid();
if (!mpTextHelper)
CreateTextHelper();
return mpTextHelper->GetChild(nIndex);
}
uno::Reference<XAccessibleStateSet> SAL_CALL ScAccessiblePreviewCell::getAccessibleStateSet()
throw(uno::RuntimeException, std::exception)
{
SolarMutexGuard aGuard;
uno::Reference<XAccessibleStateSet> xParentStates;
if (getAccessibleParent().is())
{
uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
xParentStates = xParentContext->getAccessibleStateSet();
}
utl::AccessibleStateSetHelper* pStateSet = new utl::AccessibleStateSetHelper();
if (IsDefunc(xParentStates))
pStateSet->AddState(AccessibleStateType::DEFUNC);
else
{
pStateSet->AddState(AccessibleStateType::ENABLED);
pStateSet->AddState(AccessibleStateType::MULTI_LINE);
if (IsOpaque(xParentStates))
pStateSet->AddState(AccessibleStateType::OPAQUE);
if (isShowing())
pStateSet->AddState(AccessibleStateType::SHOWING);
pStateSet->AddState(AccessibleStateType::TRANSIENT);
if (isVisible())
pStateSet->AddState(AccessibleStateType::VISIBLE);
// MANAGES_DESCENDANTS (for paragraphs)
pStateSet->AddState(AccessibleStateType::MANAGES_DESCENDANTS);
}
return pStateSet;
}
//===== XServiceInfo ====================================================
OUString SAL_CALL ScAccessiblePreviewCell::getImplementationName() throw(uno::RuntimeException, std::exception)
{
return OUString("ScAccessiblePreviewCell");
}
uno::Sequence<OUString> SAL_CALL ScAccessiblePreviewCell::getSupportedServiceNames()
throw(uno::RuntimeException, std::exception)
{
uno::Sequence< OUString > aSequence = ScAccessibleContextBase::getSupportedServiceNames();
sal_Int32 nOldSize(aSequence.getLength());
aSequence.realloc(nOldSize + 1);
aSequence[nOldSize] = "com.sun.star.table.AccessibleCellView";
return aSequence;
}
//===== XTypeProvider =======================================================
uno::Sequence<sal_Int8> SAL_CALL
ScAccessiblePreviewCell::getImplementationId()
throw (uno::RuntimeException, std::exception)
{
return css::uno::Sequence<sal_Int8>();
}
//==== internal =========================================================
Rectangle ScAccessiblePreviewCell::GetBoundingBoxOnScreen() const throw (uno::RuntimeException, std::exception)
{
Rectangle aCellRect;
if (mpViewShell)
{
mpViewShell->GetLocationData().GetCellPosition( maCellAddress, aCellRect );
vcl::Window* pWindow = mpViewShell->GetWindow();
if (pWindow)
{
Rectangle aRect = pWindow->GetWindowExtentsRelative(nullptr);
aCellRect.setX(aCellRect.getX() + aRect.getX());
aCellRect.setY(aCellRect.getY() + aRect.getY());
}
}
return aCellRect;
}
Rectangle ScAccessiblePreviewCell::GetBoundingBox() const throw (uno::RuntimeException, std::exception)
{
Rectangle aCellRect;
if (mpViewShell)
{
mpViewShell->GetLocationData().GetCellPosition( maCellAddress, aCellRect );
uno::Reference<XAccessible> xAccParent = const_cast<ScAccessiblePreviewCell*>(this)->getAccessibleParent();
if (xAccParent.is())
{
uno::Reference<XAccessibleContext> xAccParentContext = xAccParent->getAccessibleContext();
uno::Reference<XAccessibleComponent> xAccParentComp (xAccParentContext, uno::UNO_QUERY);
if (xAccParentComp.is())
{
Rectangle aParentRect (VCLRectangle(xAccParentComp->getBounds()));
aCellRect.setX(aCellRect.getX() - aParentRect.getX());
aCellRect.setY(aCellRect.getY() - aParentRect.getY());
}
}
}
return aCellRect;
}
bool ScAccessiblePreviewCell::IsDefunc(
const uno::Reference<XAccessibleStateSet>& rxParentStates)
{
return ScAccessibleContextBase::IsDefunc() || (mpDoc == nullptr) || (mpViewShell == nullptr) || !getAccessibleParent().is() ||
(rxParentStates.is() && rxParentStates->contains(AccessibleStateType::DEFUNC));
}
bool ScAccessiblePreviewCell::IsEditable(
const uno::Reference<XAccessibleStateSet>& /* rxParentStates */)
{
return false;
}
bool ScAccessiblePreviewCell::IsOpaque(
const uno::Reference<XAccessibleStateSet>& /* rxParentStates */)
{
// test whether there is a background color
//! could be moved to ScAccessibleCellBase
bool bOpaque(true);
if (mpDoc)
{
const SvxBrushItem* pItem = static_cast<const SvxBrushItem*>(mpDoc->GetAttr(
maCellAddress.Col(), maCellAddress.Row(), maCellAddress.Tab(), ATTR_BACKGROUND));
if (pItem)
bOpaque = pItem->GetColor() != COL_TRANSPARENT;
}
return bOpaque;
}
void ScAccessiblePreviewCell::CreateTextHelper()
{
if (!mpTextHelper)
{
::std::unique_ptr< SvxEditSource > pEditSource (new ScAccessibilityEditSource(o3tl::make_unique<ScAccessiblePreviewCellTextData>(mpViewShell, maCellAddress)));
mpTextHelper = new ::accessibility::AccessibleTextHelper( std::move(pEditSource) );
mpTextHelper->SetEventSource( this );
// paragraphs in preview are transient
::accessibility::AccessibleTextHelper::VectorOfStates aChildStates;
aChildStates.push_back( AccessibleStateType::TRANSIENT );
mpTextHelper->SetAdditionalChildStates( aChildStates );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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