67158da00e
and cid#1607995 Data race condition Change-Id: I18914bd2e70b60c6aa8b34435677f0278367b722 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/174485 Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com> Tested-by: Caolán McNamara <caolan.mcnamara@collabora.com>
268 lines
9.2 KiB
C++
268 lines
9.2 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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#pragma once
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#include <extended/AccessibleBrowseBoxBase.hxx>
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#include <cppuhelper/weakref.hxx>
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#include <vcl/accessibletableprovider.hxx>
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#include <mutex>
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namespace accessibility {
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class AccessibleBrowseBoxHeaderBar;
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class AccessibleBrowseBoxTable;
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/** This class represents the complete accessible BrowseBox object. */
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class AccessibleBrowseBox : public AccessibleBrowseBoxBase
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{
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friend class AccessibleBrowseBoxAccess;
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protected:
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AccessibleBrowseBox(
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const css::uno::Reference< css::accessibility::XAccessible >& _rxParent,
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const css::uno::Reference< css::accessibility::XAccessible >& _rxCreator,
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::vcl::IAccessibleTableProvider& _rBrowseBox
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);
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virtual ~AccessibleBrowseBox() override;
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/** sets the XAccessible which created the context
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To be called only once, and only if in the ctor NULL was passed.
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*/
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void setCreator(
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const css::uno::Reference< css::accessibility::XAccessible >& _rxCreator
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);
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/** Cleans up members. */
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using AccessibleBrowseBoxBase::disposing;
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virtual void SAL_CALL disposing() override;
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protected:
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// XAccessibleContext
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/** @return The count of visible children. */
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virtual sal_Int64 SAL_CALL getAccessibleChildCount() override;
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/** @return The XAccessible interface of the specified child. */
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virtual css::uno::Reference<
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css::accessibility::XAccessible > SAL_CALL
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getAccessibleChild( sal_Int64 nChildIndex ) override;
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// XAccessibleComponent
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/** @return
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The accessible child rendered under the given point.
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*/
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virtual css::uno::Reference<
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css::accessibility::XAccessible > SAL_CALL
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getAccessibleAtPoint( const css::awt::Point& rPoint ) override;
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/** Grabs the focus to the BrowseBox. */
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virtual void SAL_CALL grabFocus() override;
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// XServiceInfo
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/** @return
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The name of this class.
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*/
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virtual OUString SAL_CALL getImplementationName() override;
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public:
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// helper functions
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/** commitHeaderBarEvent commit the event at all listeners of the column/row header bar
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@param nEventId
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the event id
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@param rNewValue
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the new value
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@param rOldValue
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the old value
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@param _bColumnHeaderBar
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true if a column based header bar, false if a row based header bar
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*/
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void commitHeaderBarEvent(sal_Int16 nEventId,
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const css::uno::Any& rNewValue,
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const css::uno::Any& rOldValue, bool _bColumnHeaderBar);
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// helper functions
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/** commitTableEvent commit the event at all listeners of the table
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@param nEventId
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the event id
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@param rNewValue
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the new value
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@param rOldValue
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the old value
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*/
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void commitTableEvent(sal_Int16 nEventId,
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const css::uno::Any& rNewValue,
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const css::uno::Any& rOldValue);
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/** returns the accessible object for the row or the column header bar
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*/
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css::uno::Reference<
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css::accessibility::XAccessible >
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getHeaderBar( AccessibleBrowseBoxObjType _eObjType )
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{
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return implGetHeaderBar(_eObjType);
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}
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/** returns the accessible object for the table representation
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*/
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css::uno::Reference<
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css::accessibility::XAccessible >
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getTable( )
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{
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return implGetTable();
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}
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protected:
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// internal virtual methods
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/** @attention This method requires locked mutex's and a living object.
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@return The bounding box (VCL rect.) relative to the parent window. */
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virtual tools::Rectangle implGetBoundingBox() override;
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/** @attention This method requires locked mutex's and a living object.
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@return The bounding box (VCL rect.) in screen coordinates. */
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virtual AbsoluteScreenPixelRectangle implGetBoundingBoxOnScreen() override;
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// internal helper methods
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/** This method creates (once) and returns the accessible data table child.
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@attention This method requires locked mutex's and a living object.
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@return The XAccessible interface of the data table. */
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css::uno::Reference<
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css::accessibility::XAccessible > implGetTable();
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/** This method creates (once) and returns the specified header bar.
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@attention This method requires locked mutex's and a living object.
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@return The XAccessible interface of the header bar. */
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css::uno::Reference<
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css::accessibility::XAccessible >
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implGetHeaderBar( AccessibleBrowseBoxObjType eObjType );
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/** This method returns one of the children that are always present:
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Data table, row and column header bar or corner control.
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@attention This method requires locked mutex's and a living object.
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@return The XAccessible interface of the specified child. */
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css::uno::Reference<
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css::accessibility::XAccessible >
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implGetFixedChild( sal_Int64 nChildIndex );
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/** This method creates and returns an accessible table.
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@return An AccessibleBrowseBoxTable. */
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virtual rtl::Reference<AccessibleBrowseBoxTable> createAccessibleTable();
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private:
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/// the css::accessibility::XAccessible which created the AccessibleBrowseBox
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css::uno::WeakReference< css::accessibility::XAccessible > m_aCreator;
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/** The data table child. */
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rtl::Reference<AccessibleBrowseBoxTable> mxTable;
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/** The header bar for rows ("handle column"). */
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rtl::Reference<AccessibleBrowseBoxHeaderBar> mxRowHeaderBar;
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/** The header bar for columns (first row of the table). */
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rtl::Reference<AccessibleBrowseBoxHeaderBar> mxColumnHeaderBar;
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};
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/** the XAccessible which creates/returns an AccessibleBrowseBox
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The instance holds its XAccessibleContext with a hard reference, while
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the context holds this instance weak.
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*/
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class AccessibleBrowseBoxAccess final : public ::vcl::IAccessibleBrowseBox
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{
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private:
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mutable std::mutex m_aMutex;
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css::uno::Reference< css::accessibility::XAccessible >
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m_xParent;
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::vcl::IAccessibleTableProvider& m_rBrowseBox;
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rtl::Reference<AccessibleBrowseBox> m_xContext;
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public:
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AccessibleBrowseBoxAccess(
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css::uno::Reference< css::accessibility::XAccessible > _xParent,
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::vcl::IAccessibleTableProvider& _rBrowseBox
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);
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private:
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virtual ~AccessibleBrowseBoxAccess() override;
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// XAccessible
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virtual css::uno::Reference< css::accessibility::XAccessibleContext >
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SAL_CALL getAccessibleContext() override;
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// IAccessibleBrowseBox
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void dispose() override;
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virtual bool isAlive() const override
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{
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std::unique_lock aGuard(m_aMutex);
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return m_xContext.is() && m_xContext->isAlive();
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}
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virtual css::uno::Reference< css::accessibility::XAccessible >
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getHeaderBar( AccessibleBrowseBoxObjType _eObjType ) override
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{
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std::unique_lock aGuard(m_aMutex);
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return m_xContext ? m_xContext->getHeaderBar(_eObjType) : nullptr;
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}
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virtual css::uno::Reference< css::accessibility::XAccessible >
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getTable() override
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{
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std::unique_lock aGuard(m_aMutex);
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return m_xContext ? m_xContext->getTable() : nullptr;
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}
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virtual void commitHeaderBarEvent( sal_Int16 nEventId, const css::uno::Any& rNewValue,
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const css::uno::Any& rOldValue, bool _bColumnHeaderBar ) override
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{
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std::unique_lock aGuard(m_aMutex);
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if (m_xContext)
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m_xContext->commitHeaderBarEvent( nEventId, rNewValue, rOldValue, _bColumnHeaderBar );
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}
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virtual void commitTableEvent( sal_Int16 nEventId,
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const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override
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{
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std::unique_lock aGuard(m_aMutex);
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if (m_xContext)
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m_xContext->commitTableEvent( nEventId, rNewValue, rOldValue );
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}
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virtual void commitEvent( sal_Int16 nEventId,
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const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override
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{
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std::unique_lock aGuard(m_aMutex);
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if (m_xContext)
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m_xContext->commitEvent( nEventId, rNewValue, rOldValue );
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}
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private:
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AccessibleBrowseBoxAccess( const AccessibleBrowseBoxAccess& ) = delete;
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AccessibleBrowseBoxAccess& operator=( const AccessibleBrowseBoxAccess& ) = delete;
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};
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} // namespace accessibility
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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