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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of the Qt Build Suite.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "textfile.h"
#include <logging/translator.h>
#include <tools/hostosinfo.h>
#include <QFile>
#include <QScriptEngine>
#include <QScriptValue>
#include <QTextStream>
namespace qbs {
namespace Internal {
void initializeJsExtensionTextFile(QScriptValue extensionObject)
{
QScriptEngine *engine = extensionObject.engine();
QScriptValue obj = engine->newQMetaObject(&TextFile::staticMetaObject,
engine->newFunction(&TextFile::ctor));
extensionObject.setProperty(QLatin1String("TextFile"), obj);
}
QScriptValue TextFile::ctor(QScriptContext *context, QScriptEngine *engine)
{
TextFile *t;
switch (context->argumentCount()) {
case 0:
return context->throwError(Tr::tr("TextFile constructor needs path of file to be opened."));
case 1:
t = new TextFile(context, context->argument(0).toString());
break;
case 2:
t = new TextFile(context,
context->argument(0).toString(),
static_cast<OpenMode>(context->argument(1).toInt32())
);
break;
case 3:
t = new TextFile(context,
context->argument(0).toString(),
static_cast<OpenMode>(context->argument(1).toInt32()),
context->argument(2).toString()
);
break;
default:
return context->throwError(Tr::tr("TextFile constructor takes at most three parameters."));
}
return engine->newQObject(t, QScriptEngine::ScriptOwnership);
}
TextFile::~TextFile()
{
delete m_stream;
delete m_file;
}
TextFile::TextFile(QScriptContext *context, const QString &filePath, OpenMode mode,
const QString &codec)
{
Q_UNUSED(codec)
Q_ASSERT(thisObject().engine() == engine());
m_file = new QFile(filePath);
m_stream = new QTextStream(m_file);
QIODevice::OpenMode m;
switch (mode) {
case ReadWrite:
m = QIODevice::ReadWrite;
break;
case ReadOnly:
m = QIODevice::ReadOnly;
break;
case WriteOnly:
m = QIODevice::WriteOnly;
break;
}
if (Q_UNLIKELY(!m_file->open(m))) {
context->throwError(Tr::tr("Unable to open file '%1': %2")
.arg(filePath, m_file->errorString()));
delete m_file;
m_file = 0;
}
}
void TextFile::close()
{
if (checkForClosed())
return;
m_file->close();
delete m_file;
m_file = 0;
delete m_stream;
m_stream = 0;
}
void TextFile::setCodec(const QString &codec)
{
if (checkForClosed())
return;
m_stream->setCodec(qPrintable(codec));
}
QString TextFile::readLine()
{
if (checkForClosed())
return QString();
return m_stream->readLine();
}
QString TextFile::readAll()
{
if (checkForClosed())
return QString();
return m_stream->readAll();
}
bool TextFile::atEof() const
{
if (checkForClosed())
return true;
return m_stream->atEnd();
}
void TextFile::truncate()
{
if (checkForClosed())
return;
m_file->resize(0);
m_stream->reset();
}
void TextFile::write(const QString &str)
{
if (checkForClosed())
return;
(*m_stream) << str;
}
void TextFile::writeLine(const QString &str)
{
if (checkForClosed())
return;
(*m_stream) << str;
if (HostOsInfo::isWindowsHost())
(*m_stream) << '\r';
(*m_stream) << '\n';
}
bool TextFile::checkForClosed() const
{
if (m_file)
return false;
context()->throwError(Tr::tr("Access to TextFile object that was already closed."));
return true;
}
} // namespace Internal
} // namespace qbs
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