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| -rw-r--r-- | accessibility/inc/extended/AccessibleGridControl.hxx | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/accessibility/inc/extended/AccessibleGridControl.hxx b/accessibility/inc/extended/AccessibleGridControl.hxx new file mode 100644 index 000000000..302f240ee --- /dev/null +++ b/accessibility/inc/extended/AccessibleGridControl.hxx @@ -0,0 +1,231 @@ +/* -*- 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 . + */ + +#pragma once + +#include <extended/AccessibleGridControlBase.hxx> +#include <extended/AccessibleGridControlTable.hxx> +#include <cppuhelper/implbase.hxx> +#include <cppuhelper/weakref.hxx> +#include <rtl/ref.hxx> +#include <vcl/accessibletable.hxx> + +namespace accessibility { + + class AccessibleGridControlHeader; + + +/** This class represents the complete accessible Grid Control object. */ +class AccessibleGridControl final : public AccessibleGridControlBase +{ + friend class AccessibleGridControlAccess; + + AccessibleGridControl( + const css::uno::Reference< css::accessibility::XAccessible >& _rxParent, + const css::uno::Reference< css::accessibility::XAccessible >& _rxCreator, + ::vcl::table::IAccessibleTable& _rTable + ); + + virtual ~AccessibleGridControl() override = default; + + /** Cleans up members. */ + using AccessibleGridControlBase::disposing; + virtual void SAL_CALL disposing() override; + + // XAccessibleContext ----------------------------------------------------- + + /** @return The count of visible children. */ + virtual sal_Int32 SAL_CALL getAccessibleChildCount() override; + + /** @return The XAccessible interface of the specified child. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL + getAccessibleChild( sal_Int32 nChildIndex ) override; + + /** @return The role of this object (a table). */ + virtual sal_Int16 SAL_CALL getAccessibleRole() override; + + // XAccessibleComponent --------------------------------------------------- + + /** @return + The accessible child rendered under the given point. + */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL + getAccessibleAtPoint( const css::awt::Point& rPoint ) override; + + /** Grabs the focus to the Grid Control. */ + virtual void SAL_CALL grabFocus() override; + + // XServiceInfo ----------------------------------------------------------- + + /** @return + The name of this class. + */ + virtual OUString SAL_CALL getImplementationName() override; + +public: + // helper functions + + /** commitCellEvent commit the event at all listeners of the table + @param nEventId + the event id + @param rNewValue + the new value + @param rOldValue + the old value + */ + void commitCellEvent(sal_Int16 nEventId, const css::uno::Any& rNewValue, + const css::uno::Any& rOldValue); + + /** commitTableEvent commit the event at all listeners of the table + @param nEventId + the event id + @param rNewValue + the new value + @param rOldValue + the old value + */ + void commitTableEvent(sal_Int16 nEventId, const css::uno::Any& rNewValue, + const css::uno::Any& rOldValue); + +private: + // internal virtual methods ----------------------------------------------- + + /** @attention This method requires locked mutex's and a living object. + @return The bounding box (VCL rect.) relative to the parent window. */ + virtual tools::Rectangle implGetBoundingBox() override; + /** @attention This method requires locked mutex's and a living object. + @return The bounding box (VCL rect.) in screen coordinates. */ + virtual tools::Rectangle implGetBoundingBoxOnScreen() override; + + // internal helper methods ------------------------------------------------ + + /** This method creates (once) and returns the accessible data table child. + @attention This method requires locked mutex's and a living object. + @return The XAccessible interface of the data table. */ + css::uno::Reference< css::accessibility::XAccessible > implGetTable(); + + /** This method creates (once) and returns the specified header bar. + @attention This method requires locked mutex's and a living object. + @return The XAccessible interface of the header bar. */ + css::uno::Reference< css::accessibility::XAccessible > + implGetHeaderBar( ::vcl::table::AccessibleTableControlObjType eObjType ); + + /** This method returns one of the children that are always present: + Data table, row and column header bar or corner control. + @attention This method requires locked mutex's and a living object. + @return The XAccessible interface of the specified child. */ + css::uno::Reference< css::accessibility::XAccessible > + implGetFixedChild( sal_Int32 nChildIndex ); + + /** This method creates and returns an accessible table. + @return An AccessibleGridControlTable. */ + rtl::Reference<AccessibleGridControlTable> createAccessibleTable(); + + /// the css::accessibility::XAccessible which created the AccessibleGridControl + css::uno::WeakReference< css::accessibility::XAccessible > m_aCreator; + + /** The data table child. */ + rtl::Reference<AccessibleGridControlTable> m_xTable; + + /** The header bar for rows. */ + rtl::Reference<AccessibleGridControlHeader> m_xRowHeaderBar; + + /** The header bar for columns (first row of the table). */ + rtl::Reference<AccessibleGridControlHeader> m_xColumnHeaderBar; + + /** @return The count of visible children. */ + inline sal_Int32 implGetAccessibleChildCount(); +}; + + +/** the XAccessible which creates/returns an AccessibleGridControl + + <p>The instance holds its XAccessibleContext with a hard reference, while + the context holds this instance weak.</p> +*/ + +class AccessibleGridControlAccess final : + public ::cppu::WeakImplHelper< css::accessibility::XAccessible > + ,public ::vcl::table::IAccessibleTableControl +{ +private: + css::uno::Reference< css::accessibility::XAccessible > m_xParent; + ::vcl::table::IAccessibleTable * m_pTable; + rtl::Reference<AccessibleGridControl> m_xContext; + +public: + AccessibleGridControlAccess( + css::uno::Reference< css::accessibility::XAccessible > _xParent, + ::vcl::table::IAccessibleTable& _rTable + ); + + /// returns the AccessibleContext belonging to this Accessible + AccessibleGridControl* getContext() { return m_xContext.get(); } + +private: + virtual ~AccessibleGridControlAccess() override; + + // XAccessible + virtual css::uno::Reference< css::accessibility::XAccessibleContext > + SAL_CALL getAccessibleContext() override; + + // IAccessibleTable + virtual css::uno::Reference< css::accessibility::XAccessible > + getMyself() override + { + return this; + } + void DisposeAccessImpl() override; + virtual bool isAlive() const override + { + return m_xContext.is() && m_xContext->isAlive(); + } + virtual void commitCellEvent( sal_Int16 nEventId, + const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override + { + AccessibleGridControl* pContext( getContext() ); + if ( pContext ) + pContext->commitCellEvent( nEventId, rNewValue, rOldValue ); + } + virtual void commitTableEvent( sal_Int16 nEventId, + const css::uno::Any& rNewValue, const css::uno::Any& rOldValue ) override + { + AccessibleGridControl* pContext( getContext() ); + if ( pContext ) + pContext->commitTableEvent( nEventId, rNewValue, rOldValue ); + } + virtual void commitEvent( sal_Int16 nEventId, + const css::uno::Any& rNewValue ) override + { + AccessibleGridControl* pContext( getContext() ); + if ( pContext ) + pContext->commitEvent( nEventId, rNewValue, css::uno::Any() ); + } + +private: + AccessibleGridControlAccess( const AccessibleGridControlAccess& ) = delete; + AccessibleGridControlAccess& operator=( const AccessibleGridControlAccess& ) = delete; +}; + + +} // namespace accessibility + + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |