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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef Patternist_ApplyTemplate_H
#define Patternist_ApplyTemplate_H
#include "qtemplatemode_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short When combined with other components, implements
* @c xsl:apply-templates.
*
* Note that ApplyTemplate isn't named ApplyTemplates. The reason for this
* is that ApplyTemplate doesn't do the iteration part. An @c
* <xsl:apply-templates/> instruction is rewritten into:
*
* @code
* child::node/() map apply-template()
* @endcode
*
* Hence, this expression requires a focus, although it can consist of
* atomic values.
*
* @since 4.5
* @author Frans Englich <fenglich@trolltech.com>
* @ingroup Patternist_expressions
*/
class ApplyTemplate : public TemplateInvoker
{
public:
typedef QExplicitlySharedDataPointer<ApplyTemplate> Ptr;
/**
* @short @p mode may be @c null. If it is, ApplyTemplate interprets
* that as that it should use the #current mode.
*
* @see StaticContext::currentTemplateMode()
*/
ApplyTemplate(const TemplateMode::Ptr &mode,
const WithParam::Hash &withParams,
const TemplateMode::Ptr &defaultMode);
virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const;
virtual SequenceType::Ptr staticType() const;
virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
virtual Properties properties() const;
/**
* The only reason this function exists, is in order to convert
* QXmlNodeModelIndex to QPatternist::Item. So, this is a huge
* performance setback. It applies for one of the builtin templates.
*/
inline Item mapToItem(const QXmlNodeModelIndex &node,
const DynamicContext::Ptr &context) const;
inline Item::Iterator::Ptr mapToSequence(const Item &item,
const DynamicContext::Ptr &context) const;
inline TemplateMode::Ptr mode() const;
virtual bool configureRecursion(const CallTargetDescription::Ptr &sign);
virtual Expression::Ptr body() const;
virtual CallTargetDescription::Ptr callTargetDescription() const;
Expression::Ptr compress(const StaticContext::Ptr &context);
private:
typedef QExplicitlySharedDataPointer<const ApplyTemplate> ConstPtr;
Template::Ptr findTemplate(const DynamicContext::Ptr &context,
const TemplateMode::Ptr &templateMode) const;
/**
* @note You typically want to use effectiveMode().
*/
const TemplateMode::Ptr m_mode;
TemplateMode::Ptr m_defaultMode;
inline TemplateMode::Ptr effectiveMode(const DynamicContext::Ptr &context) const;
};
TemplateMode::Ptr ApplyTemplate::mode() const
{
return m_mode;
}
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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