273 lines
8.6 KiB
C++
273 lines
8.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <scitems.hxx>
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#include <tools/gen.hxx>
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#include <AccessibleText.hxx>
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#include <editsrc.hxx>
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#include <AccessiblePreviewCell.hxx>
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#include <prevwsh.hxx>
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#include <prevloc.hxx>
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#include <document.hxx>
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#include <svx/AccessibleTextHelper.hxx>
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#include <editeng/brushitem.hxx>
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#include <vcl/window.hxx>
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#include <vcl/svapp.hxx>
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#include <vcl/unohelp.hxx>
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#include <com/sun/star/accessibility/AccessibleStateType.hpp>
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#include <comphelper/sequence.hxx>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::accessibility;
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//===== internal ============================================================
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ScAccessiblePreviewCell::ScAccessiblePreviewCell( const css::uno::Reference<css::accessibility::XAccessible>& rxParent,
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ScPreviewShell* pViewShell,
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const ScAddress& rCellAddress,
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sal_Int32 nIndex ) :
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ScAccessibleCellBase( rxParent, ( pViewShell ? &pViewShell->GetDocument() : nullptr ), rCellAddress, nIndex ),
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mpViewShell( pViewShell )
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{
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if (mpViewShell)
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mpViewShell->AddAccessibilityObject(*this);
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}
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ScAccessiblePreviewCell::~ScAccessiblePreviewCell()
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{
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if (!ScAccessibleContextBase::IsDefunc() && !rBHelper.bInDispose)
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{
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// increment refcount to prevent double call off dtor
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osl_atomic_increment( &m_refCount );
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// call dispose to inform object which have a weak reference to this object
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dispose();
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}
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}
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void SAL_CALL ScAccessiblePreviewCell::disposing()
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{
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SolarMutexGuard aGuard;
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if (mpViewShell)
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{
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mpViewShell->RemoveAccessibilityObject(*this);
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mpViewShell = nullptr;
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}
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mpTextHelper.reset();
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ScAccessibleCellBase::disposing();
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}
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void ScAccessiblePreviewCell::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
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{
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if (rHint.GetId() == SfxHintId::ScAccVisAreaChanged)
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{
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if (mpTextHelper)
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mpTextHelper->UpdateChildren();
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}
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ScAccessibleContextBase::Notify(rBC, rHint);
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}
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//===== XAccessibleComponent ============================================
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uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleAtPoint( const awt::Point& rPoint )
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{
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uno::Reference<XAccessible> xRet;
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if (containsPoint(rPoint))
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{
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SolarMutexGuard aGuard;
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IsObjectValid();
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if(!mpTextHelper)
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CreateTextHelper();
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xRet = mpTextHelper->GetAt(rPoint);
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}
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return xRet;
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}
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void SAL_CALL ScAccessiblePreviewCell::grabFocus()
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{
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SolarMutexGuard aGuard;
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IsObjectValid();
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if (getAccessibleParent().is())
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{
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uno::Reference<XAccessibleComponent> xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY);
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if (xAccessibleComponent.is())
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xAccessibleComponent->grabFocus();
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}
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}
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//===== XAccessibleContext ==============================================
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sal_Int64 SAL_CALL ScAccessiblePreviewCell::getAccessibleChildCount()
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{
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SolarMutexGuard aGuard;
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IsObjectValid();
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if (!mpTextHelper)
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CreateTextHelper();
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return mpTextHelper->GetChildCount();
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}
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uno::Reference< XAccessible > SAL_CALL ScAccessiblePreviewCell::getAccessibleChild(sal_Int64 nIndex)
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{
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SolarMutexGuard aGuard;
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IsObjectValid();
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if (!mpTextHelper)
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CreateTextHelper();
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return mpTextHelper->GetChild(nIndex);
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}
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sal_Int64 SAL_CALL ScAccessiblePreviewCell::getAccessibleStateSet()
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{
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SolarMutexGuard aGuard;
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sal_Int64 nParentStates = 0;
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if (getAccessibleParent().is())
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{
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uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
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nParentStates = xParentContext->getAccessibleStateSet();
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}
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sal_Int64 nStateSet = 0;
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if (IsDefunc(nParentStates))
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nStateSet |= AccessibleStateType::DEFUNC;
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else
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{
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nStateSet |= AccessibleStateType::ENABLED;
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nStateSet |= AccessibleStateType::MULTI_LINE;
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if (IsOpaque())
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nStateSet |= AccessibleStateType::OPAQUE;
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if (isShowing())
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nStateSet |= AccessibleStateType::SHOWING;
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nStateSet |= AccessibleStateType::TRANSIENT;
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if (isVisible())
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nStateSet |= AccessibleStateType::VISIBLE;
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// MANAGES_DESCENDANTS (for paragraphs)
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nStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;
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}
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return nStateSet;
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}
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//===== XServiceInfo ====================================================
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OUString SAL_CALL ScAccessiblePreviewCell::getImplementationName()
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{
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return u"ScAccessiblePreviewCell"_ustr;
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}
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uno::Sequence<OUString> SAL_CALL ScAccessiblePreviewCell::getSupportedServiceNames()
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{
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const css::uno::Sequence<OUString> vals { u"com.sun.star.table.AccessibleCellView"_ustr };
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return comphelper::concatSequences(ScAccessibleContextBase::getSupportedServiceNames(), vals);
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}
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//===== XTypeProvider =======================================================
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uno::Sequence<sal_Int8> SAL_CALL
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ScAccessiblePreviewCell::getImplementationId()
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{
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return css::uno::Sequence<sal_Int8>();
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}
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//==== internal =========================================================
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AbsoluteScreenPixelRectangle ScAccessiblePreviewCell::GetBoundingBoxOnScreen() const
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{
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tools::Rectangle aCellRect;
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if (mpViewShell)
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{
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mpViewShell->GetLocationData().GetCellPosition( maCellAddress, aCellRect );
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vcl::Window* pWindow = mpViewShell->GetWindow();
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if (pWindow)
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{
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AbsoluteScreenPixelRectangle aRect = pWindow->GetWindowExtentsAbsolute();
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aCellRect.Move(aRect.Left(), aRect.Top());
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}
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}
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return AbsoluteScreenPixelRectangle(aCellRect);
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}
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tools::Rectangle ScAccessiblePreviewCell::GetBoundingBox() const
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{
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tools::Rectangle aCellRect;
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if (mpViewShell)
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{
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mpViewShell->GetLocationData().GetCellPosition( maCellAddress, aCellRect );
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uno::Reference<XAccessible> xAccParent = const_cast<ScAccessiblePreviewCell*>(this)->getAccessibleParent();
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if (xAccParent.is())
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{
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uno::Reference<XAccessibleContext> xAccParentContext = xAccParent->getAccessibleContext();
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uno::Reference<XAccessibleComponent> xAccParentComp (xAccParentContext, uno::UNO_QUERY);
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if (xAccParentComp.is())
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{
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tools::Rectangle aParentRect(
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vcl::unohelper::ConvertToVCLRect(xAccParentComp->getBounds()));
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aCellRect.Move(-aParentRect.Left(), -aParentRect.Top());
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}
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}
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}
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return aCellRect;
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}
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bool ScAccessiblePreviewCell::IsDefunc(sal_Int64 nParentStates)
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{
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return ScAccessibleContextBase::IsDefunc() || (mpDoc == nullptr) || (mpViewShell == nullptr) || !getAccessibleParent().is() ||
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(nParentStates & AccessibleStateType::DEFUNC);
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}
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bool ScAccessiblePreviewCell::IsEditable(sal_Int64 /* nParentStates */)
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{
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return false;
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}
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bool ScAccessiblePreviewCell::IsOpaque() const
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{
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// test whether there is a background color
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//! could be moved to ScAccessibleCellBase
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bool bOpaque(true);
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if (mpDoc)
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{
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const SvxBrushItem* pItem = mpDoc->GetAttr(maCellAddress, ATTR_BACKGROUND);
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if (pItem)
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bOpaque = pItem->GetColor() != COL_TRANSPARENT;
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}
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return bOpaque;
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}
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void ScAccessiblePreviewCell::CreateTextHelper()
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{
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if (mpTextHelper)
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return;
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mpTextHelper.reset( new ::accessibility::AccessibleTextHelper(
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std::make_unique<ScAccessibilityEditSource>(
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std::make_unique<ScAccessiblePreviewCellTextData>(
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mpViewShell, maCellAddress))) );
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mpTextHelper->SetEventSource( this );
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// paragraphs in preview are transient
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mpTextHelper->SetAdditionalChildStates( AccessibleStateType::TRANSIENT );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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