7c992bd895
Change-Id: I165272a8f7bd514b60719db360a2a19236b6658a Reviewed-on: https://gerrit.libreoffice.org/c/core/+/111260 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
369 lines
12 KiB
C++
369 lines
12 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 <AccessibleSmElementsControl.hxx>
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#include <AccessibleSmElement.hxx>
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#include <ElementsDockingWindow.hxx>
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#include <smmod.hxx>
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#include <com/sun/star/accessibility/AccessibleEventId.hpp>
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#include <com/sun/star/accessibility/AccessibleRole.hpp>
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#include <com/sun/star/accessibility/AccessibleStateType.hpp>
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#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
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#include <cppuhelper/supportsservice.hxx>
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#include <o3tl/safeint.hxx>
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#include <toolkit/helper/convert.hxx>
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#include <unotools/accessiblerelationsethelper.hxx>
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#include <unotools/accessiblestatesethelper.hxx>
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#include <vcl/svapp.hxx>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::accessibility;
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using OContextEntryGuard = ::comphelper::OContextEntryGuard;
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using OExternalLockGuard = ::comphelper::OExternalLockGuard;
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// AccessibleSmElementsControl
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AccessibleSmElementsControl::AccessibleSmElementsControl(SmElementsControl& rControl)
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: m_pControl(&rControl)
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{
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}
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AccessibleSmElementsControl::~AccessibleSmElementsControl() {}
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void AccessibleSmElementsControl::UpdateFocus(sal_uInt16 nPos)
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{
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const bool bSetFocus = (nPos == SAL_MAX_UINT16);
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// submit events only if the widget has the focus to avoid sending events due to mouse move
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if (!m_pControl || (bSetFocus && !m_pControl->HasFocus()))
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return;
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if (bSetFocus)
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nPos = m_pControl->itemHighlighted() - m_pControl->itemOffset();
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if (nPos < m_aAccessibleChildren.size())
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{
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const auto& rxChild = m_aAccessibleChildren[nPos];
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if (rxChild.is())
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rxChild->SetFocus(bSetFocus);
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}
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}
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void AccessibleSmElementsControl::ReleaseAllItems()
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{
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if (m_aAccessibleChildren.empty())
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return;
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m_aAccessibleChildren.clear();
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// The original toolbox accessibility code uses individual NAME_CHANGED
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// events in a loop. We can't do this, because on each remove event the
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// list of known children is rebuild. But since we rely on the child
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// count of the SmElementsControl, we'll always have no or all items.
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// In the latter case this would automatically recreate all items!
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assert(m_pControl && m_pControl->itemCount() == 0);
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NotifyAccessibleEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN, uno::Any(), uno::Any());
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}
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void AccessibleSmElementsControl::AddAllItems()
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{
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assert(m_pControl);
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if (!m_pControl)
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return;
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uno::Any aNewName(getAccessibleName());
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NotifyAccessibleEvent(AccessibleEventId::NAME_CHANGED, uno::Any(), aNewName);
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// register the new items
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sal_uInt16 nCount = getAccessibleChildCount();
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for (sal_uInt16 i = 0; i < nCount; ++i)
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{
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uno::Any aNewValue;
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aNewValue <<= getAccessibleChild(static_cast<sal_Int32>(i));
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NotifyAccessibleEvent(AccessibleEventId::CHILD, uno::Any(), aNewValue);
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}
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}
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IMPLEMENT_FORWARD_XINTERFACE2(AccessibleSmElementsControl, comphelper::OAccessibleComponentHelper,
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AccessibleSmElementsControl_BASE)
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IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleSmElementsControl,
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comphelper::OAccessibleComponentHelper,
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AccessibleSmElementsControl_BASE)
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// XAccessible
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uno::Reference<XAccessibleContext> AccessibleSmElementsControl::getAccessibleContext()
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{
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return this;
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}
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// XComponent
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void AccessibleSmElementsControl::disposing()
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{
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comphelper::OAccessibleComponentHelper::disposing();
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m_aAccessibleChildren.clear();
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}
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void AccessibleSmElementsControl::grabFocus()
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{
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SolarMutexGuard aGuard;
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if (!m_pControl)
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throw uno::RuntimeException();
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m_pControl->GrabFocus();
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}
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sal_Int32 AccessibleSmElementsControl::getForeground()
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{
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SolarMutexGuard aGuard;
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return static_cast<sal_Int32>(SmElementsControl::GetTextColor());
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}
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sal_Int32 AccessibleSmElementsControl::getBackground()
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{
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SolarMutexGuard aGuard;
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Color nCol = SmElementsControl::GetControlBackground();
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return static_cast<sal_Int32>(nCol);
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}
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// XServiceInfo
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OUString AccessibleSmElementsControl::getImplementationName()
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{
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return "com.sun.star.comp.toolkit.AccessibleSmElementsControl";
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}
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sal_Bool AccessibleSmElementsControl::supportsService(const OUString& rServiceName)
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{
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return cppu::supportsService(this, rServiceName);
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}
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uno::Sequence<OUString> AccessibleSmElementsControl::getSupportedServiceNames()
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{
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return { "com.sun.star.accessibility.AccessibleContext",
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"com.sun.star.accessibility.AccessibleComponent",
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"com.sun.star.accessibility.AccessibleSelection",
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"com.sun.star.accessibility.AccessibleSmElementsControl" };
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}
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// XAccessibleContext
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sal_Int32 AccessibleSmElementsControl::getAccessibleChildCount()
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{
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comphelper::OExternalLockGuard aGuard(this);
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sal_Int32 nCount = 0;
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if (m_pControl)
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{
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nCount = m_pControl->itemCount();
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if (m_aAccessibleChildren.size() != sal_uInt16(nCount))
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m_aAccessibleChildren.resize(nCount);
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}
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return nCount;
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}
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uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleChild(sal_Int32 c)
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{
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comphelper::OExternalLockGuard aGuard(this);
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if (c < 0 || c >= getAccessibleChildCount())
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throw lang::IndexOutOfBoundsException();
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rtl::Reference<AccessibleSmElement> xChild = m_aAccessibleChildren[c];
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const sal_uInt16 nItemId = m_pControl->itemOffset() + c;
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if (xChild.is() && xChild->itemId() != nItemId)
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xChild.clear();
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if (!xChild.is())
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{
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sal_uInt16 nHighlightItemId = m_pControl->itemHighlighted();
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rtl::Reference<AccessibleSmElement> pChild
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= new AccessibleSmElement(m_pControl, nItemId, c);
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if (pChild->itemId() == nHighlightItemId)
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pChild->SetFocus(true);
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m_aAccessibleChildren[c] = pChild;
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xChild = pChild;
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}
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return xChild;
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}
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uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleParent()
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{
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SolarMutexGuard aGuard;
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if (!m_pControl)
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throw uno::RuntimeException();
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return m_pControl->GetDrawingArea()->get_accessible_parent();
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}
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uno::Reference<XAccessible>
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AccessibleSmElementsControl::getAccessibleAtPoint(const awt::Point& rPoint)
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{
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comphelper::OExternalLockGuard aGuard(this);
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uno::Reference<XAccessible> xAccessible;
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if (m_pControl)
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{
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sal_uInt16 nPos = m_pControl->itemAtPos(VCLPoint(rPoint));
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nPos -= m_pControl->itemOffset();
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if (nPos <= m_aAccessibleChildren.size())
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xAccessible = getAccessibleChild(nPos);
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}
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return xAccessible;
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}
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sal_Int16 AccessibleSmElementsControl::getAccessibleRole() { return AccessibleRole::SCROLL_PANE; }
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OUString AccessibleSmElementsControl::getAccessibleDescription() { return OUString(); }
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OUString AccessibleSmElementsControl::getAccessibleName()
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{
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SolarMutexGuard aGuard;
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OUString aName;
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if (m_pControl)
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aName = SmResId(m_pControl->elementSetId().getStr());
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return aName;
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}
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// XAccessibleSelection
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void AccessibleSmElementsControl::selectAccessibleChild(sal_Int32 nChildIndex)
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{
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OExternalLockGuard aGuard(this);
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if ((!m_pControl) || nChildIndex < 0
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|| o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
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throw lang::IndexOutOfBoundsException();
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m_pControl->setItemHighlighted(nChildIndex);
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}
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sal_Bool AccessibleSmElementsControl::isAccessibleChildSelected(sal_Int32 nChildIndex)
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{
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OExternalLockGuard aGuard(this);
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if ((!m_pControl) || nChildIndex < 0
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|| o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
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throw lang::IndexOutOfBoundsException();
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return (m_pControl->itemHighlighted() == nChildIndex);
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}
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void AccessibleSmElementsControl::clearAccessibleSelection()
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{
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OExternalLockGuard aGuard(this);
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if (m_pControl)
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m_pControl->setItemHighlighted(SAL_MAX_UINT16);
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}
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void AccessibleSmElementsControl::selectAllAccessibleChildren()
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{
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// intentionally empty
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}
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sal_Int32 AccessibleSmElementsControl::getSelectedAccessibleChildCount()
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{
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OExternalLockGuard aGuard(this);
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sal_Int32 nRet = 0;
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if (m_pControl
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&& (m_pControl->itemHighlighted() - m_pControl->itemOffset()) < getAccessibleChildCount())
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nRet = 1;
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return nRet;
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}
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uno::Reference<XAccessible>
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AccessibleSmElementsControl::getSelectedAccessibleChild(sal_Int32 nSelectedChildIndex)
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{
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OExternalLockGuard aGuard(this);
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if (nSelectedChildIndex != 0 || !m_pControl)
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throw lang::IndexOutOfBoundsException();
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return getAccessibleChild(m_pControl->itemHighlighted() - m_pControl->itemOffset());
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}
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void AccessibleSmElementsControl::deselectAccessibleChild(sal_Int32 nChildIndex)
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{
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OExternalLockGuard aGuard(this);
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if (nChildIndex != 0 || nChildIndex >= getAccessibleChildCount())
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throw lang::IndexOutOfBoundsException();
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clearAccessibleSelection(); // there can be just one selected child
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}
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void AccessibleSmElementsControl::TestControl()
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{
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if (!m_pControl)
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throw uno::RuntimeException();
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}
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awt::Rectangle AccessibleSmElementsControl::implGetBounds()
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{
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SolarMutexGuard aGuard;
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TestControl();
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awt::Rectangle aRet;
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const Point aOutPos;
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Size aOutSize(m_pControl->GetOutputSizePixel());
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aRet.X = aOutPos.X();
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aRet.Y = aOutPos.Y();
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aRet.Width = aOutSize.Width();
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aRet.Height = aOutSize.Height();
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return aRet;
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}
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sal_Bool AccessibleSmElementsControl::containsPoint(const awt::Point& aPoint)
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{
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SolarMutexGuard aGuard;
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TestControl();
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Size aSz(m_pControl->GetOutputSizePixel());
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return aPoint.X >= 0 && aPoint.Y >= 0 && aPoint.X < aSz.Width() && aPoint.Y < aSz.Height();
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}
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uno::Reference<XAccessibleRelationSet> AccessibleSmElementsControl::getAccessibleRelationSet()
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{
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uno::Reference<XAccessibleRelationSet> xRelSet = new utl::AccessibleRelationSetHelper();
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return xRelSet; // empty relation set
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}
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uno::Reference<XAccessibleStateSet> AccessibleSmElementsControl::getAccessibleStateSet()
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{
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SolarMutexGuard aGuard;
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rtl::Reference<::utl::AccessibleStateSetHelper> pStateSet = new ::utl::AccessibleStateSetHelper;
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if (!m_pControl)
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pStateSet->AddState(AccessibleStateType::DEFUNC);
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else
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{
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pStateSet->AddState(AccessibleStateType::ENABLED);
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pStateSet->AddState(AccessibleStateType::FOCUSABLE);
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if (m_pControl->HasFocus())
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pStateSet->AddState(AccessibleStateType::FOCUSED);
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if (m_pControl->IsActive())
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pStateSet->AddState(AccessibleStateType::ACTIVE);
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if (m_pControl->IsVisible())
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pStateSet->AddState(AccessibleStateType::SHOWING);
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if (m_pControl->IsReallyVisible())
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pStateSet->AddState(AccessibleStateType::VISIBLE);
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if (COL_TRANSPARENT != SmElementsControl::GetControlBackground())
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pStateSet->AddState(AccessibleStateType::OPAQUE);
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}
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return pStateSet;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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