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/* -*- 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_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
#include <memory>
#include <deque>
#include <algorithm>
class SfxHint;
class SdrHint;
class TextHint;
class SvxViewChangedHint;
class SvxEditSourceHint;
namespace accessibility
{
/** This class handles the notification events for the
AccessibleTextHelper class.
For various reasons, we cannot process EditEngine events as
they arrive, but have to queue and handle them in a batch.
*/
class AccessibleTextEventQueue
{
public:
typedef ::std::deque< SfxHint* > EventQueue;
AccessibleTextEventQueue();
~AccessibleTextEventQueue();
/// Append event to end of queue
void Append( const SdrHint& rHint );
/// Append event to end of queue
void Append( const TextHint& rHint );
/// Append event to end of queue
void Append( const SvxViewChangedHint& rHint );
/// Append event to end of queue
void Append( const SvxEditSourceHint& rHint );
/** Pop first queue element
return first queue element, ownership transfers to caller
*/
::std::unique_ptr< SfxHint > PopFront();
/** Apply functor to every queue member
@param rFunctor
Functor to apply. Functor receives queue element as
parameter: void func( const SfxHint* );
*/
template < typename Functor > void ForEach( Functor& rFunctor ) const
{
// #109864# Make sure results are put back into rFunctor
rFunctor = ::std::for_each( maEventQueue.begin(), maEventQueue.end(), rFunctor );
}
/// Query whether queue is empty
bool IsEmpty() const;
/// Clear event queue
void Clear();
private:
EventQueue maEventQueue;
};
} // end of namespace accessibility
#endif // INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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