Method showMQTTConnectionManager

src/frontend/datasources/ImportFileWidget.cpp:2916–2949

! Shows the MQTT connection manager where the connections are created and edited. The selected connection is selected in the connection combo box in this widget. */

	The selected connection is selected in the connection combo box in this widget.
*/
void ImportFileWidget::showMQTTConnectionManager() {
	bool previousConnectionChanged = false;
	auto* dlg = new MQTTConnectionManagerDialog(this, ui.cbConnection->currentText(), previousConnectionChanged);

	if (dlg->exec() == QDialog::Accepted) {
		// re-read the available connections to be in sync with the changes in MQTTConnectionManager
		m_initialisingMQTT = true;
		const QString& prevConn = ui.cbConnection->currentText();
		ui.cbConnection->clear();
		readMQTTConnections();
		m_initialisingMQTT = false;

		// select the connection the user has selected in MQTTConnectionManager
		const QString& conn = dlg->connection();

		int index = ui.cbConnection->findText(conn);
		if (conn != prevConn) { // Current connection isn't the previous one
			if (ui.cbConnection->currentIndex() != index)
				ui.cbConnection->setCurrentIndex(index);
			else
				mqttConnectionChanged();
		} else if (dlg->initialConnectionChanged()) { // Current connection is the same with previous one but it changed
			if (ui.cbConnection->currentIndex() == index)
				mqttConnectionChanged();
			else
				ui.cbConnection->setCurrentIndex(index);
		} else { // Previous connection wasn't changed
			m_initialisingMQTT = true;
			ui.cbConnection->setCurrentIndex(index);
			m_initialisingMQTT = false;
		}
	}
	delete dlg;
}

/*!
	loads all available saved MQTT nconnections