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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 <scitems.hxx>
#include <tools/gen.hxx>
#include <AccessibleText.hxx>
#include <editsrc.hxx>
#include <AccessiblePreviewCell.hxx>
#include <prevwsh.hxx>
#include <prevloc.hxx>
#include <document.hxx>
#include <svx/AccessibleTextHelper.hxx>
#include <editeng/brushitem.hxx>
#include <vcl/window.hxx>
#include <vcl/svapp.hxx>
#include <vcl/unohelp.hxx>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <comphelper/sequence.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 )
{
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;
}
mpTextHelper.reset();
ScAccessibleCellBase::disposing();
}
void ScAccessiblePreviewCell::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
{
if (rHint.GetId() == SfxHintId::ScAccVisAreaChanged)
{
if (mpTextHelper)
mpTextHelper->UpdateChildren();
}
ScAccessibleContextBase::Notify(rBC, rHint);
}
//===== XAccessibleComponent ============================================
uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleAtPoint( const awt::Point& rPoint )
{
uno::Reference<XAccessible> xRet;
if (containsPoint(rPoint))
{
SolarMutexGuard aGuard;
IsObjectValid();
if(!mpTextHelper)
CreateTextHelper();
xRet = mpTextHelper->GetAt(rPoint);
}
return xRet;
}
void SAL_CALL ScAccessiblePreviewCell::grabFocus()
{
SolarMutexGuard aGuard;
IsObjectValid();
if (getAccessibleParent().is())
{
uno::Reference<XAccessibleComponent> xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY);
if (xAccessibleComponent.is())
xAccessibleComponent->grabFocus();
}
}
//===== XAccessibleContext ==============================================
sal_Int64 SAL_CALL ScAccessiblePreviewCell::getAccessibleChildCount()
{
SolarMutexGuard aGuard;
IsObjectValid();
if (!mpTextHelper)
CreateTextHelper();
return mpTextHelper->GetChildCount();
}
uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleChild(sal_Int64 nIndex)
{
SolarMutexGuard aGuard;
IsObjectValid();
if (!mpTextHelper)
CreateTextHelper();
return mpTextHelper->GetChild(nIndex);
}
sal_Int64 SAL_CALL ScAccessiblePreviewCell::getAccessibleStateSet()
{
SolarMutexGuard aGuard;
sal_Int64 nParentStates = 0;
if (getAccessibleParent().is())
{
uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
nParentStates = xParentContext->getAccessibleStateSet();
}
sal_Int64 nStateSet = 0;
if (IsDefunc(nParentStates))
nStateSet |= AccessibleStateType::DEFUNC;
else
{
nStateSet |= AccessibleStateType::ENABLED;
nStateSet |= AccessibleStateType::MULTI_LINE;
if (IsOpaque())
nStateSet |= AccessibleStateType::OPAQUE;
if (isShowing())
nStateSet |= AccessibleStateType::SHOWING;
nStateSet |= AccessibleStateType::TRANSIENT;
if (isVisible())
nStateSet |= AccessibleStateType::VISIBLE;
// MANAGES_DESCENDANTS (for paragraphs)
nStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;
}
return nStateSet;
}
//===== XServiceInfo ====================================================
OUString SAL_CALL ScAccessiblePreviewCell::getImplementationName()
{
return u"ScAccessiblePreviewCell"_ustr;
}
uno::Sequence<OUString> SAL_CALL ScAccessiblePreviewCell::getSupportedServiceNames()
{
const css::uno::Sequence<OUString> vals { u"com.sun.star.table.AccessibleCellView"_ustr };
return comphelper::concatSequences(ScAccessibleContextBase::getSupportedServiceNames(), vals);
}
//===== XTypeProvider =======================================================
uno::Sequence<sal_Int8> SAL_CALL
ScAccessiblePreviewCell::getImplementationId()
{
return css::uno::Sequence<sal_Int8>();
}
//==== internal =========================================================
AbsoluteScreenPixelRectangle ScAccessiblePreviewCell::GetBoundingBoxOnScreen() const
{
tools::Rectangle aCellRect;
if (mpViewShell)
{
mpViewShell->GetLocationData().GetCellPosition( maCellAddress, aCellRect );
vcl::Window* pWindow = mpViewShell->GetWindow();
if (pWindow)
{
AbsoluteScreenPixelRectangle aRect = pWindow->GetWindowExtentsAbsolute();
aCellRect.Move(aRect.Left(), aRect.Top());
}
}
return AbsoluteScreenPixelRectangle(aCellRect);
}
tools::Rectangle ScAccessiblePreviewCell::GetBoundingBox() const
{
tools::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())
{
tools::Rectangle aParentRect(
vcl::unohelper::ConvertToVCLRect(xAccParentComp->getBounds()));
aCellRect.Move(-aParentRect.Left(), -aParentRect.Top());
}
}
}
return aCellRect;
}
bool ScAccessiblePreviewCell::IsDefunc(sal_Int64 nParentStates)
{
return ScAccessibleContextBase::IsDefunc() || (mpDoc == nullptr) || (mpViewShell == nullptr) || !getAccessibleParent().is() ||
(nParentStates & AccessibleStateType::DEFUNC);
}
bool ScAccessiblePreviewCell::IsEditable(sal_Int64 /* nParentStates */)
{
return false;
}
bool ScAccessiblePreviewCell::IsOpaque() const
{
// test whether there is a background color
//! could be moved to ScAccessibleCellBase
bool bOpaque(true);
if (mpDoc)
{
const SvxBrushItem* pItem = mpDoc->GetAttr(maCellAddress, ATTR_BACKGROUND);
if (pItem)
bOpaque = pItem->GetColor() != COL_TRANSPARENT;
}
return bOpaque;
}
void ScAccessiblePreviewCell::CreateTextHelper()
{
if (mpTextHelper)
return;
mpTextHelper.reset( new ::accessibility::AccessibleTextHelper(
std::make_unique<ScAccessibilityEditSource>(
std::make_unique<ScAccessiblePreviewCellTextData>(
mpViewShell, maCellAddress))) );
mpTextHelper->SetEventSource( this );
// paragraphs in preview are transient
mpTextHelper->SetAdditionalChildStates( AccessibleStateType::TRANSIENT );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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