Method checkFileName

src/frontend/datasources/DatasetMetadataManagerWidget.cpp:131–176

* @brief Checks whether leFileName contains a valid file name. */

 * @brief Checks whether leFileName contains a valid file name.
 */
bool DatasetMetadataManagerWidget::checkFileName() {
	const QString fileName = ui.leFileName->text();

	// check whether it contains only digits, letters, -, _ or not
	const QRegularExpression re(QLatin1String("^[\\w\\d-]+$"));
	const QRegularExpressionMatch match = re.match(fileName);
	bool hasMatch = match.hasMatch();

	if (!hasMatch || fileName.isEmpty()) {
		DEBUG("File name invalid");
		QPalette palette;
		palette.setColor(QPalette::Base, Qt::red);
		palette.setColor(QPalette::Text, Qt::black);
		ui.leFileName->setPalette(palette);
		ui.leFileName->setToolTip(QStringLiteral("Invalid name for a file (it can contain:digits, letters, -, _)"));
	} else {
		QPalette palette;
		palette.setColor(QPalette::Base, m_baseColor);
		palette.setColor(QPalette::Text, m_textColor);
		ui.leFileName->setPalette(palette);
		ui.leFileName->setToolTip(QString());
	}

	// check whether there already is a file named like this or not.
	bool found = false;

	if (m_datasetModel->allDatasetsList().toStringList().contains(fileName)) {
		DEBUG("There already is a metadata file with this name");
		QPalette palette;
		palette.setColor(QPalette::Base, Qt::red);
		palette.setColor(QPalette::Text, Qt::black);
		ui.leFileName->setPalette(palette);
		ui.leFileName->setToolTip(QStringLiteral("There already is a dataset metadata file with this name!"));
		found = true;
	} else {
		if (hasMatch) {
			QPalette palette;
			palette.setColor(QPalette::Base, m_baseColor);
			palette.setColor(QPalette::Text, m_textColor);
			ui.leFileName->setPalette(palette);
			ui.leFileName->setToolTip(QString());
		}
	}

	return hasMatch && !found;
}

/**
 * @brief Checks whether leDownloadURL contains a valid URL.