7fccffa78a
instead of casting everywhere Change-Id: I547ad294e612488aef11788bb54e086897c19f93 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131707 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
341 lines
12 KiB
C++
341 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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#ifndef INCLUDED_EDITENG_ACCESSIBLECONTEXTBASE_HXX
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#define INCLUDED_EDITENG_ACCESSIBLECONTEXTBASE_HXX
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#include <com/sun/star/accessibility/XAccessible.hpp>
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#include <com/sun/star/accessibility/XAccessibleContext.hpp>
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#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
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#include <com/sun/star/uno/Reference.hxx>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <cppuhelper/compbase.hxx>
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#include <cppuhelper/basemutex.hxx>
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#include <editeng/editengdllapi.h>
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#include <rtl/ref.hxx>
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namespace com::sun::star::accessibility { class XAccessibleStateSet; }
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namespace com::sun::star::accessibility { class XAccessibleRelationSet; }
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namespace com::sun::star::accessibility { struct AccessibleEventObject; }
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namespace utl { class AccessibleStateSetHelper; }
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namespace accessibility {
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/** @descr
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This base class provides an implementation of the
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AccessibleContext service. Apart from the
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<type>XXAccessible<type> and XAccessibleContextContext
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interfaces it supports the XServiceInfo interface.
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*/
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class EDITENG_DLLPUBLIC AccessibleContextBase
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: public cppu::BaseMutex,
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public cppu::WeakComponentImplHelper<
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css::accessibility::XAccessible,
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css::accessibility::XAccessibleContext,
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css::accessibility::XAccessibleEventBroadcaster,
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css::lang::XServiceInfo
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>
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{
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public:
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//===== internal ========================================================
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/** The origin of the accessible name or description.
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*/
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enum StringOrigin {
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ManuallySet,
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FromShape,
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AutomaticallyCreated,
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NotSet
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};
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AccessibleContextBase (
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const css::uno::Reference< css::accessibility::XAccessible>& rxParent,
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const sal_Int16 aRole);
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virtual ~AccessibleContextBase() override;
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/** Call all accessibility event listeners to inform them about the
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specified event.
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@param aEventId
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Id of the event type.
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@param rNewValue
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New value of the modified attribute. Pass empty structure if
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not applicable.
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@param rOldValue
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Old value of the modified attribute. Pass empty structure if
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not applicable.
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*/
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void CommitChange (sal_Int16 aEventId,
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const css::uno::Any& rNewValue,
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const css::uno::Any& rOldValue);
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/** Set a new description and, provided that the new name differs from
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the old one, broadcast an accessibility event.
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@param rsDescription
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The new description.
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@param eDescriptionOrigin
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The origin of the description. This is used to determine
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whether the given description overrules the existing one. An
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origin with a lower numerical value overrides one with a higher
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value.
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@throws css::uno::RuntimeException
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*/
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void SetAccessibleDescription (
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const OUString& rsDescription,
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StringOrigin eDescriptionOrigin);
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/** Set a new description and, provided that the new name differs from
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the old one, broadcast an accessibility event.
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@param rsName
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The new name.
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@param eNameOrigin
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The origin of the name. This is used to determine whether the
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given name overrules the existing one. An origin with a lower
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numerical value overrides one with a higher value.
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@throws css::uno::RuntimeException
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*/
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void SetAccessibleName (
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const OUString& rsName,
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StringOrigin eNameOrigin);
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/** Set the specified state (turn it on) and send events to all
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listeners to inform them of the change.
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@param aState
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The state to turn on.
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@return
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If the specified state changed its value due to this call
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<TRUE/> is returned, otherwise <FALSE/>.
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*/
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virtual bool SetState (sal_Int16 aState);
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/** Reset the specified state (turn it off) and send events to all
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listeners to inform them of the change.
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@param aState
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The state to turn off.
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@return
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If the specified state changed its value due to this call
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<TRUE/> is returned, otherwise <FALSE/>.
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*/
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virtual bool ResetState (sal_Int16 aState);
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/** Return the state of the specified state.
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@param aState
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The state for which to return its value.
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@return
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A value of <TRUE/> indicates that the state is set. A <FALSE/>
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value indicates an unset state.
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*/
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bool GetState (sal_Int16 aState);
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/** Replace the current relation set with the specified one. Send
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events for relations that are not in both sets.
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@param rRelationSet
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The new relation set that replaces the old one.
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@throws css::uno::RuntimeException
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*/
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void SetRelationSet (
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const css::uno::Reference< css::accessibility::XAccessibleRelationSet>& rxRelationSet);
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//===== XAccessible =====================================================
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/// Return the XAccessibleContext.
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virtual css::uno::Reference< css::accessibility::XAccessibleContext> SAL_CALL
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getAccessibleContext() override;
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//===== XAccessibleContext ==============================================
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/// Return the number of currently visible children.
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virtual sal_Int32 SAL_CALL
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getAccessibleChildCount() override;
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/// Return the specified child or throw exception.
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virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
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getAccessibleChild (sal_Int32 nIndex) override;
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/// Return a reference to the parent.
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virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
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getAccessibleParent() override;
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/// Return this objects index among the parents children.
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virtual sal_Int32 SAL_CALL
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getAccessibleIndexInParent() override;
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/// Return this object's role.
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virtual sal_Int16 SAL_CALL
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getAccessibleRole() override;
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/// Return this object's description.
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virtual OUString SAL_CALL
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getAccessibleDescription() override;
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/// Return the object's current name.
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virtual OUString SAL_CALL
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getAccessibleName() override;
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/// Return NULL to indicate that an empty relation set.
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virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet> SAL_CALL
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getAccessibleRelationSet() override;
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/// Return the set of current states.
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virtual css::uno::Reference< css::accessibility::XAccessibleStateSet> SAL_CALL
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getAccessibleStateSet() override;
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/** Return the parents locale or throw exception if this object has no
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parent yet/anymore.
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*/
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virtual css::lang::Locale SAL_CALL
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getLocale() override;
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//===== XAccessibleEventBroadcaster ========================================
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virtual void SAL_CALL
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addAccessibleEventListener (
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const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener) override;
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virtual void SAL_CALL
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removeAccessibleEventListener (
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const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener) override;
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//===== XServiceInfo ====================================================
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/** Returns an identifier for the implementation of this object.
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*/
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virtual OUString SAL_CALL
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getImplementationName() override;
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/** Return whether the specified service is supported by this class.
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*/
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virtual sal_Bool SAL_CALL
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supportsService (const OUString& sServiceName) override;
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/** Returns a list of all supported services. In this case that is just
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the AccessibleContext service.
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*/
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virtual css::uno::Sequence< OUString> SAL_CALL
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getSupportedServiceNames() override;
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//===== XTypeProvider ===================================================
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/** Returns an implementation id.
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*/
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virtual css::uno::Sequence<sal_Int8> SAL_CALL
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getImplementationId() override;
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/** Check whether or not the object has been disposed (or is in the
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state of being disposed).
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@return TRUE, if the object is disposed or in the course
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of being disposed. Otherwise, FALSE is returned.
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*/
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bool IsDisposed() const;
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protected:
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/** The state set.
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*/
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rtl::Reference<::utl::AccessibleStateSetHelper> mxStateSet;
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/** The relation set. Relations can be set or removed by calling the
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<member>AddRelation</member> and <member>RemoveRelation</member> methods.
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*/
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css::uno::Reference< css::accessibility::XAccessibleRelationSet> mxRelationSet;
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// This method is called from the component helper base class while disposing.
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virtual void SAL_CALL disposing() override;
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/** Create the accessible object's name. This method may be called more
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than once for a single object.
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@return
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The returned string is a unique (among the accessible object's
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siblings) name.
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@throws css::uno::RuntimeException
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*/
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virtual OUString CreateAccessibleName();
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void FireEvent (const css::accessibility::AccessibleEventObject& aEvent);
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/** Check whether or not the object has been disposed (or is in the
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state of being disposed). If that is the case then
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DisposedException is thrown to inform the (indirect) caller of the
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foul deed.
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@throws css::lang::DisposedException
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*/
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void ThrowIfDisposed();
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/** sets the role as returned by XaccessibleContext::getAccessibleRole
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<p>Caution: This is only to be used in the construction phase (means within
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the ctor or late ctor), <em>never</em> when the object is still alive and part
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of an Accessibility hierarchy.</p>
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*/
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void SetAccessibleRole( sal_Int16 _nRole );
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private:
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/// Reference to the parent object.
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css::uno::Reference< css::accessibility::XAccessible> mxParent;
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/** Description of this object. This is not a constant because it can
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be set from the outside. Furthermore, it changes according to the
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draw page's display mode.
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*/
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OUString msDescription;
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/** The origin of the description is used to determine whether new
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descriptions given to the SetAccessibleDescription is ignored or
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whether that replaces the old value in msDescription.
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*/
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StringOrigin meDescriptionOrigin;
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/** Name of this object. It changes according the draw page's
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display mode.
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*/
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OUString msName;
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/** The origin of the name is used to determine whether new
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name given to the SetAccessibleName is ignored or
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whether that replaces the old value in msName.
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*/
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StringOrigin meNameOrigin;
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/** client id in the AccessibleEventNotifier queue
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*/
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sal_uInt32 mnClientId;
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/** This is the role of this object.
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*/
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sal_Int16 maRole;
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};
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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