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/**
******************************************************************************
*
* @file filenamevalidatinglineedit.cpp
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
* @brief
* @see The GNU Public License (GPL) Version 3
* @defgroup
* @{
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "filenamevalidatinglineedit.h"
#include "qtcassert.h"
#include <QtCore/QRegExp>
#include <QtCore/QDebug>
namespace Utils {
#define WINDOWS_DEVICES "CON|AUX|PRN|COM1|COM2|LPT1|LPT2|NUL"
// Naming a file like a device name will break on Windows, even if it is
// "com1.txt". Since we are cross-platform, we generally disallow such file
// names.
static const QRegExp &windowsDeviceNoSubDirPattern()
{
static const QRegExp rc(QLatin1String(WINDOWS_DEVICES),
Qt::CaseInsensitive);
QTC_ASSERT(rc.isValid(), return rc);
return rc;
}
static const QRegExp &windowsDeviceSubDirPattern()
{
static const QRegExp rc(QLatin1String(".*[/\\\\](" WINDOWS_DEVICES ")"), Qt::CaseInsensitive);
QTC_ASSERT(rc.isValid(), return rc);
return rc;
}
// ----------- FileNameValidatingLineEdit
FileNameValidatingLineEdit::FileNameValidatingLineEdit(QWidget *parent) :
BaseValidatingLineEdit(parent),
m_allowDirectories(false),
m_unused(0)
{
}
bool FileNameValidatingLineEdit::allowDirectories() const
{
return m_allowDirectories;
}
void FileNameValidatingLineEdit::setAllowDirectories(bool v)
{
m_allowDirectories = v;
}
/* Validate a file base name, check for forbidden characters/strings. */
#ifdef Q_OS_WIN
# define SLASHES "/\\"
#else
# define SLASHES "/"
#endif
static const char *notAllowedCharsSubDir = "?:&*\"|#%<> ";
static const char *notAllowedCharsNoSubDir = "?:&*\"|#%<> "SLASHES;
static const char *notAllowedSubStrings[] = {".."};
bool FileNameValidatingLineEdit::validateFileName(const QString &name,
bool allowDirectories,
QString *errorMessage /* = 0*/)
{
if (name.isEmpty()) {
if (errorMessage)
*errorMessage = tr("The name must not be empty");
return false;
}
// Characters
const char *notAllowedChars = allowDirectories ? notAllowedCharsSubDir : notAllowedCharsNoSubDir;
for (const char *c = notAllowedChars; *c; c++)
if (name.contains(QLatin1Char(*c))) {
if (errorMessage)
*errorMessage = tr("The name must not contain any of the characters '%1'.").arg(QLatin1String(notAllowedChars));
return false;
}
// Substrings
const int notAllowedSubStringCount = sizeof(notAllowedSubStrings)/sizeof(const char *);
for (int s = 0; s < notAllowedSubStringCount; s++) {
const QLatin1String notAllowedSubString(notAllowedSubStrings[s]);
if (name.contains(notAllowedSubString)) {
if (errorMessage)
*errorMessage = tr("The name must not contain '%1'.").arg(QString(notAllowedSubString));
return false;
}
}
// Windows devices
bool matchesWinDevice = windowsDeviceNoSubDirPattern().exactMatch(name);
if (!matchesWinDevice && allowDirectories)
matchesWinDevice = windowsDeviceSubDirPattern().exactMatch(name);
if (matchesWinDevice) {
if (errorMessage)
*errorMessage = tr("The name must not match that of a MS Windows device. (%1).").
arg(windowsDeviceNoSubDirPattern().pattern().replace(QLatin1Char('|'), QLatin1Char(',')));
return false;
}
return true;
}
bool FileNameValidatingLineEdit::validate(const QString &value, QString *errorMessage) const
{
return validateFileName(value, m_allowDirectories, errorMessage);
}
} // namespace Utils