/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtXmlPatterns module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** This file may be used under the terms of the GNU Lesser General Public | |
** License version 2.1 as published by the Free Software Foundation and | |
** appearing in the file LICENSE.LGPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | |
** | |
** In addition, as a special exception, Nokia gives you certain additional | |
** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
** http://www.gnu.org/copyleft/gpl.html. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
** | |
** | |
** | |
** | |
** | |
** $QT_END_LICENSE$ | |
** | |
****************************************************************************/ | |
#include "qdaytimeduration_p.h" | |
#include "qfocus_p.h" | |
QT_BEGIN_NAMESPACE | |
using namespace QPatternist; | |
Focus::Focus(const DynamicContext::Ptr &prevContext) : DelegatingDynamicContext(prevContext), | |
m_contextSizeCached(-1) | |
{ | |
Q_ASSERT(prevContext); | |
Q_ASSERT(prevContext != this); | |
} | |
xsInteger Focus::contextPosition() const | |
{ | |
Q_ASSERT(m_focusIterator); | |
return m_focusIterator->position(); | |
} | |
Item Focus::contextItem() const | |
{ | |
Q_ASSERT(m_focusIterator); | |
return m_focusIterator->current(); | |
} | |
xsInteger Focus::contextSize() | |
{ | |
Q_ASSERT(m_focusIterator); | |
if(m_contextSizeCached == -1) | |
m_contextSizeCached = m_focusIterator->copy()->count(); | |
Q_ASSERT_X(m_contextSizeCached == m_focusIterator->copy()->count(), Q_FUNC_INFO, | |
"If our cache is not the same as the real count, something is wrong."); | |
return m_contextSizeCached; | |
} | |
void Focus::setFocusIterator(const Item::Iterator::Ptr &it) | |
{ | |
Q_ASSERT(it); | |
m_focusIterator = it; | |
} | |
Item::Iterator::Ptr Focus::focusIterator() const | |
{ | |
return m_focusIterator; | |
} | |
Item Focus::currentItem() const | |
{ | |
/* In the case that there is no top level expression that creates a focus, | |
* fn:current() should return the focus. This logic achieves this. | |
* Effectively we traverse up our "context stack" through recursion, and | |
* start returning when we've found the top most focus. */ | |
const Item current(m_prevContext->currentItem()); | |
if(current.isNull()) | |
return m_focusIterator->current(); | |
else | |
return current; | |
} | |
QT_END_NAMESPACE |