source: trunk/src/xmlpatterns/functions/qunparsedtextavailablefn.cpp@ 341

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** 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.
**
** 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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qanyuri_p.h"

#include "qunparsedtextavailablefn_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

bool UnparsedTextAvailableFN::evaluateEBV(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(m_operands.count() == 1 || m_operands.count() == 2);
    const Item href(m_operands.first()->evaluateSingleton(context));
    if(!href)
        return Item();

    bool isValid = false;
    const QUrl mayRela(AnyURI::toQUrl<ReportContext::XTDE1170>(href.stringValue(),
                                                               context,
                                                               this,
                                                               &isValid));

    if(!isValid)
        return false;

    const QUrl uri(context->resolveURI(mayRela, staticBaseURI()));

    /* fn:unparsed-text() will raise an error on this. */
    if(uri.hasFragment())
        return false;

    QString encoding;

    if(m_operands.count() == 2)
    {
        const Item encodingArg(m_operands.at(1)->evaluateSingleton(context));
        if(encodingArg)
            encoding = encodingArg.stringValue();
    }

    Q_ASSERT(uri.isValid() && !uri.isRelative());
    return context->resourceLoader()->isUnparsedTextAvailable(uri, encoding);
}

QT_END_NAMESPACE