From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- include/comphelper/accessibleeventnotifier.hxx | 116 +++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 include/comphelper/accessibleeventnotifier.hxx (limited to 'include/comphelper/accessibleeventnotifier.hxx') diff --git a/include/comphelper/accessibleeventnotifier.hxx b/include/comphelper/accessibleeventnotifier.hxx new file mode 100644 index 000000000..75828cda6 --- /dev/null +++ b/include/comphelper/accessibleeventnotifier.hxx @@ -0,0 +1,116 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_COMPHELPER_ACCESSIBLEEVENTNOTIFIER_HXX +#define INCLUDED_COMPHELPER_ACCESSIBLEEVENTNOTIFIER_HXX + +#include + +namespace com::sun::star::uno { class XInterface; } +namespace com::sun::star::uno { template class Reference; } +namespace com::sun::star::accessibility { class XAccessibleEventListener; } +namespace com::sun::star::accessibility { struct AccessibleEventObject; } + +namespace comphelper { + +class COMPHELPER_DLLPUBLIC AccessibleEventNotifier +{ +public: + typedef sal_uInt32 TClientId; + +public: + AccessibleEventNotifier() = delete; + ~AccessibleEventNotifier() = delete; + AccessibleEventNotifier( const AccessibleEventNotifier& ) = delete; + AccessibleEventNotifier& operator=( const AccessibleEventNotifier& ) = delete; + + /** registers a client of this class, means a broadcaster of AccessibleEvents + +

No precaution is taken to care for disposal of this component. When the component + dies, it must call revokeClient or revokeClientNotifyDisposing + explicitly itself.

+ */ + static TClientId registerClient(); + + /** revokes a broadcaster of AccessibleEvents + +

Note that no disposing event is fired when you use this method, the client is simply revoked. + You can for instance revoke a client if the last listener for it is revoked, but the client + itself is not disposed.
+ When the client is disposed, you should prefer revokeClientNotifyDisposing

+ +

Any possibly pending events for this client are removed from the queue.

+ + @seealso revokeClientNotifyDisposing + */ + static void revokeClient( const TClientId _nClient ); + + /** revokes a client, with additionally notifying a disposing event to all listeners registered for + this client + +

Any other possibly pending events for this client are removed from the queue

+ + @param _nClient + the id of the client which should be revoked + @param _rxEventSource + the source to be notified together with the XComponent::disposing + call. + */ + static void revokeClientNotifyDisposing( + const TClientId _nClient, + const css::uno::Reference< css::uno::XInterface >& _rxEventSource ); + + /** registers a listener for the given client + + @param _nClient + the id of the client for which a listener should be registered + @return + the number of event listeners currently registered for this client + */ + static sal_Int32 addEventListener( + const TClientId _nClient, + const css::uno::Reference< css::accessibility::XAccessibleEventListener >& _rxListener ); + + /** revokes a listener for the given client + + @param _nClient + the id of the client for which a listener should be revoked + @return + the number of event listeners currently registered for this client + */ + static sal_Int32 removeEventListener( + const TClientId _nClient, + const css::uno::Reference< css::accessibility::XAccessibleEventListener >& _rxListener ); + + /** adds an event, which is to be broadcasted, to the queue + + @param _nClient + the id of the client which needs to broadcast the event + */ + static void addEvent( + const TClientId _nClient, + const css::accessibility::AccessibleEventObject& _rEvent ); + +}; + +} // namespace comphelper + +#endif // INCLUDED_COMPHELPER_ACCESSIBLEEVENTNOTIFIER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3