1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
26 ** Public License version 3.0 requirements will be met:
27 ** http://www.gnu.org/copyleft/gpl.html.
30 ** Alternatively, this file may be used in accordance with the terms and
31 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
44 #include "qpatternistlocale_p.h"
46 #include "qiodevicedelegate_p.h"
50 using namespace QPatternist;
52 QIODeviceDelegate::QIODeviceDelegate(QIODevice *const source) : m_source(source)
56 connect(source, SIGNAL(aboutToClose()), SIGNAL(aboutToClose()));
57 connect(source, SIGNAL(bytesWritten(qint64)), SIGNAL(bytesWritten(qint64)));
58 connect(source, SIGNAL(readChannelFinished()), SIGNAL(readChannelFinished()));
59 connect(source, SIGNAL(readyRead()), SIGNAL(readyRead()));
61 /* According to Thiago these two signals are very similar, but QtNetworkAccess uses finished()
62 * instead for a minor but significant reason. */
63 connect(source, SIGNAL(readChannelFinished()), SIGNAL(finished()));
65 /* For instance QFile emits no signals, so how do we know if the device has all data available
66 * and it therefore is safe and correct to emit finished()? isSequential() tells us whether it's
67 * not random access, and whether it's safe to emit finished(). */
68 if(m_source->isSequential())
69 QMetaObject::invokeMethod(this, "readyRead", Qt::QueuedConnection);
71 QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
73 setOpenMode(QIODevice::ReadOnly);
75 /* Set up the timeout timer. */
76 connect(&m_timeout, SIGNAL(timeout()), SLOT(networkTimeout()));
78 m_timeout.setSingleShot(true);
79 m_timeout.start(Timeout);
82 void QIODeviceDelegate::networkTimeout()
84 setErrorString(QtXmlPatterns::tr("Network timeout."));
85 error(QNetworkReply::TimeoutError);
88 void QIODeviceDelegate::abort()
90 /* Do nothing, just to please QNetworkReply's pure virtual. */
93 bool QIODeviceDelegate::atEnd() const
95 return m_source->atEnd();
98 qint64 QIODeviceDelegate::bytesAvailable() const
100 return m_source->bytesAvailable();
103 qint64 QIODeviceDelegate::bytesToWrite() const
105 return m_source->bytesToWrite();
108 bool QIODeviceDelegate::canReadLine() const
110 return m_source->canReadLine();
113 void QIODeviceDelegate::close()
115 return m_source->close();
118 bool QIODeviceDelegate::isSequential() const
120 return m_source->isSequential();
123 bool QIODeviceDelegate::open(OpenMode mode)
125 const bool success = m_source->open(mode);
126 setOpenMode(m_source->openMode());
130 qint64 QIODeviceDelegate::pos() const
132 return m_source->pos();
135 bool QIODeviceDelegate::reset()
137 return m_source->reset();
140 bool QIODeviceDelegate::seek(qint64 pos)
142 return m_source->seek(pos);
145 qint64 QIODeviceDelegate::size() const
147 return m_source->size();
150 bool QIODeviceDelegate::waitForBytesWritten(int msecs)
152 return m_source->waitForBytesWritten(msecs);
155 bool QIODeviceDelegate::waitForReadyRead(int msecs)
157 return m_source->waitForReadyRead(msecs);
160 qint64 QIODeviceDelegate::readData(char *data, qint64 maxSize)
162 return m_source->read(data, maxSize);