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Friedemann Kleint authored
Task: 237390 Details: Add 'allowDirectories' property to the widgets involved.
Friedemann Kleint authoredTask: 237390 Details: Add 'allowDirectories' property to the widgets involved.
filenamevalidatinglineedit.cpp 4.75 KiB
/***************************************************************************
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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** GNU General Public License Usage
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** Public License versions 2.0 or 3.0 as published by the Free Software
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#include "filenamevalidatinglineedit.h"
#include <QtCore/QRegExp>
#include <QtCore/QDebug>
namespace Core {
namespace Utils {
// 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("CON|AUX|PRN|COM1|COM2|LPT1|LPT2|NUL"),
Qt::CaseInsensitive);
Q_ASSERT(rc.isValid());
return rc;
}
static const QRegExp &windowsDeviceSubDirPattern()
{
static const QRegExp rc(QLatin1String(".*[/\\\\]CON|.*[/\\\\]AUX|.*[/\\\\]PRN|.*[/\\\\]COM1|.*[/\\\\]COM2|.*[/\\\\]LPT1|.*[/\\\\]LPT2|.*[/\\\\]NUL"),
Qt::CaseInsensitive);
Q_ASSERT(rc.isValid());
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
} // namespace Core