office-gobmx/comphelper/source/container/enumhelper.cxx
Noel Grandin 24c709655e clang-tidy modernize-pass-by-value in comphelper
Change-Id: I29074d801eaef57f160ce14b943b21831b327ecf
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134979
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2022-05-26 10:31:44 +02:00

280 lines
6.6 KiB
C++

/* -*- 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 .
*/
#include <comphelper/enumhelper.hxx>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/container/XIndexAccess.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <utility>
namespace comphelper
{
OEnumerationByName::OEnumerationByName(css::uno::Reference<css::container::XNameAccess> _xAccess)
:m_aNames(_xAccess->getElementNames())
,m_xAccess(_xAccess)
,m_nPos(0)
,m_bListening(false)
{
impl_startDisposeListening();
}
OEnumerationByName::OEnumerationByName(const css::uno::Reference<css::container::XNameAccess> _xAccess,
std::vector<OUString> _aNames )
:m_aNames(std::move(_aNames))
,m_xAccess(std::move(_xAccess))
,m_nPos(0)
,m_bListening(false)
{
impl_startDisposeListening();
}
OEnumerationByName::~OEnumerationByName()
{
std::lock_guard aLock(m_aLock);
impl_stopDisposeListening();
}
sal_Bool SAL_CALL OEnumerationByName::hasMoreElements( )
{
std::lock_guard aLock(m_aLock);
if (m_xAccess.is() && getLength() > m_nPos)
return true;
if (m_xAccess.is())
{
impl_stopDisposeListening();
m_xAccess.clear();
}
return false;
}
css::uno::Any SAL_CALL OEnumerationByName::nextElement( )
{
std::lock_guard aLock(m_aLock);
css::uno::Any aRes;
if (m_xAccess.is() && m_nPos < getLength())
aRes = m_xAccess->getByName(getElement(m_nPos++));
if (m_xAccess.is() && m_nPos >= getLength())
{
impl_stopDisposeListening();
m_xAccess.clear();
}
if (!aRes.hasValue()) //There are no more elements
throw css::container::NoSuchElementException();
return aRes;
}
void SAL_CALL OEnumerationByName::disposing(const css::lang::EventObject& aEvent)
{
std::lock_guard aLock(m_aLock);
if (aEvent.Source == m_xAccess)
m_xAccess.clear();
}
void OEnumerationByName::impl_startDisposeListening()
{
if (m_bListening)
return;
osl_atomic_increment(&m_refCount);
css::uno::Reference< css::lang::XComponent > xDisposable(m_xAccess, css::uno::UNO_QUERY);
if (xDisposable.is())
{
xDisposable->addEventListener(this);
m_bListening = true;
}
osl_atomic_decrement(&m_refCount);
}
void OEnumerationByName::impl_stopDisposeListening()
{
if (!m_bListening)
return;
osl_atomic_increment(&m_refCount);
css::uno::Reference< css::lang::XComponent > xDisposable(m_xAccess, css::uno::UNO_QUERY);
if (xDisposable.is())
{
xDisposable->removeEventListener(this);
m_bListening = false;
}
osl_atomic_decrement(&m_refCount);
}
sal_Int32 OEnumerationByName::getLength() const
{
if (m_aNames.index() == 0)
return std::get<css::uno::Sequence<OUString>>(m_aNames).getLength();
else
return std::get<std::vector<OUString>>(m_aNames).size();
}
const OUString& OEnumerationByName::getElement(sal_Int32 nIndex) const
{
if (m_aNames.index() == 0)
return std::get<css::uno::Sequence<OUString>>(m_aNames).getConstArray()[nIndex];
else
return std::get<std::vector<OUString>>(m_aNames)[nIndex];
}
OEnumerationByIndex::OEnumerationByIndex(css::uno::Reference< css::container::XIndexAccess > _xAccess)
:m_xAccess(std::move(_xAccess))
,m_nPos(0)
,m_bListening(false)
{
impl_startDisposeListening();
}
OEnumerationByIndex::~OEnumerationByIndex()
{
std::lock_guard aLock(m_aLock);
impl_stopDisposeListening();
}
sal_Bool SAL_CALL OEnumerationByIndex::hasMoreElements( )
{
std::lock_guard aLock(m_aLock);
if (m_xAccess.is() && m_xAccess->getCount() > m_nPos)
return true;
if (m_xAccess.is())
{
impl_stopDisposeListening();
m_xAccess.clear();
}
return false;
}
css::uno::Any SAL_CALL OEnumerationByIndex::nextElement( )
{
std::lock_guard aLock(m_aLock);
css::uno::Any aRes;
if (m_xAccess.is() && m_nPos < m_xAccess->getCount())
aRes = m_xAccess->getByIndex(m_nPos++);
if (m_xAccess.is() && m_nPos >= m_xAccess->getCount())
{
impl_stopDisposeListening();
m_xAccess.clear();
}
if (!aRes.hasValue())
throw css::container::NoSuchElementException();
return aRes;
}
void SAL_CALL OEnumerationByIndex::disposing(const css::lang::EventObject& aEvent)
{
std::lock_guard aLock(m_aLock);
if (aEvent.Source == m_xAccess)
m_xAccess.clear();
}
void OEnumerationByIndex::impl_startDisposeListening()
{
if (m_bListening)
return;
osl_atomic_increment(&m_refCount);
css::uno::Reference< css::lang::XComponent > xDisposable(m_xAccess, css::uno::UNO_QUERY);
if (xDisposable.is())
{
xDisposable->addEventListener(this);
m_bListening = true;
}
osl_atomic_decrement(&m_refCount);
}
void OEnumerationByIndex::impl_stopDisposeListening()
{
if (!m_bListening)
return;
osl_atomic_increment(&m_refCount);
css::uno::Reference< css::lang::XComponent > xDisposable(m_xAccess, css::uno::UNO_QUERY);
if (xDisposable.is())
{
xDisposable->removeEventListener(this);
m_bListening = false;
}
osl_atomic_decrement(&m_refCount);
}
OAnyEnumeration::OAnyEnumeration(const css::uno::Sequence< css::uno::Any >& lItems)
:m_nPos(0)
,m_lItems(lItems)
{
}
OAnyEnumeration::~OAnyEnumeration()
{
}
sal_Bool SAL_CALL OAnyEnumeration::hasMoreElements( )
{
std::lock_guard aLock(m_aLock);
return (m_lItems.getLength() > m_nPos);
}
css::uno::Any SAL_CALL OAnyEnumeration::nextElement( )
{
if ( ! hasMoreElements())
throw css::container::NoSuchElementException();
std::lock_guard aLock(m_aLock);
sal_Int32 nPos = m_nPos;
++m_nPos;
return m_lItems[nPos];
}
} // namespace comphelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */