source: trunk/src/xmlpatterns/api/qxmlquery_p.h@ 929

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
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** 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
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//
//  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 QXMLQUERY_P_H
#define QXMLQUERY_P_H

#include <QAbstractMessageHandler>
#include <QAbstractUriResolver>
#include <QPointer>
#include <QSourceLocation>
#include <QUrl>
#include <QVariant>
#include <QXmlName>
#include <QXmlNamePool>
#include <QXmlQuery>

#include "qacceltreebuilder_p.h"
#include "qacceltreeresourceloader_p.h"
#include "qcoloringmessagehandler_p.h"
#include "qcommonsequencetypes_p.h"
#include "qexpressionfactory_p.h"
#include "qfocus_p.h"
#include "qfunctionfactorycollection_p.h"
#include "qgenericdynamiccontext_p.h"
#include "qgenericstaticcontext_p.h"
#include "qnamepool_p.h"
#include "qnetworkaccessdelegator_p.h"
#include "qreferencecountedvalue_p.h"
#include "qresourcedelegator_p.h"
#include "qstaticfocuscontext_p.h"
#include "quriloader_p.h"
#include "qvariableloader_p.h"

QT_BEGIN_NAMESPACE

class QXmlQueryPrivate
{
public:

    inline QXmlQueryPrivate(const QXmlNamePool &np = QXmlNamePool()) : namePool(np)
                                                                     , messageHandler(0)
                                                                     , uriResolver(0)
                                                                     , queryLanguage(QXmlQuery::XQuery10)
                                                                     , m_networkAccessDelegator(new QPatternist::NetworkAccessDelegator(0, 0))
    {
        m_networkAccessDelegator->m_variableURIManager = new QPatternist::URILoader(ownerObject(), namePool.d, variableLoader());
    }

    void detach()
    {
        if(m_variableLoader)
            m_variableLoader = QPatternist::VariableLoader::Ptr(new QPatternist::VariableLoader(namePool.d, m_variableLoader));

        delete m_networkAccessDelegator->m_variableURIManager;
        m_networkAccessDelegator->m_variableURIManager = new QPatternist::URILoader(ownerObject(), namePool.d, m_variableLoader);

        if(m_resourceLoader)
        {
            const QPatternist::AccelTreeResourceLoader::Ptr nev(new QPatternist::AccelTreeResourceLoader(namePool.d,
                                                                                                         m_networkAccessDelegator));
            m_resourceLoader = QPatternist::ResourceLoader::Ptr(new QPatternist::ResourceDelegator(m_resourceLoader->deviceURIs(),
                                                                                                   m_resourceLoader,
                                                                                                   nev));
        }
    }

    bool isValid()
    {
        return expression();
    }

    inline void recompileRequired()
    {
        m_expr.reset();
    }

    inline QPatternist::VariableLoader::Ptr variableLoader()
    {
        if(!m_variableLoader)
            m_variableLoader = QPatternist::VariableLoader::Ptr(new QPatternist::VariableLoader(namePool.d));

        return m_variableLoader;
    }

    inline QPatternist::GenericStaticContext::Ptr staticContext()
    {
        if(m_staticContext && m_expr)
            return m_staticContext;
        /* Else, re-create the staticContext. */

        if(!messageHandler)
            messageHandler = new QPatternist::ColoringMessageHandler(ownerObject());

        if(!m_functionFactory)
        {
            if(queryLanguage == QXmlQuery::XSLT20)
                m_functionFactory = QPatternist::FunctionFactoryCollection::xslt20Factory(namePool.d);