Moved logic to check fixed port is in use to ConfigWindow class.

refs #5751

runtime/ConfigWindow.cpp

@@ -14,6 +14,8 @@
 #include "ui_ConfigWindow.h"
 
 #include <QSettings>
+#include <QTcpSocket>
+#include <QtWidgets>
 
 ConfigWindow::ConfigWindow(QWidget *parent) :
     QDialog(parent)
@@ -23,13 +25,18 @@ ConfigWindow::ConfigWindow(QWidget *parent) :
 
 void ConfigWindow::initConfigWindow()
 {
-    QSettings settings;
-
     ui = new Ui::ConfigWindow;
     ui->setupUi(this);
 
     m_needRestart = false;
 
+    setConfigValues();
+}
+
+void ConfigWindow::setConfigValues()
+{
+    QSettings settings;
+
     ui->browserCommandLineEdit->setText(settings.value("BrowserCommand").toString());
 
     if(settings.value("FixedPort").toBool())
@@ -70,19 +77,28 @@ void ConfigWindow::on_buttonBox_accepted()
     QString pythonpath = ui->pythonPathLineEdit->text();
     QString applicationpath = ui->applicationPathLineEdit->text();
 
-    m_needRestart = (settings.value("FixedPort").toBool() != fixedport ||
-                     settings.value("PortNumber").toInt() != portnumber ||
-                     settings.value("PythonPath").toString() != pythonpath ||
-                     settings.value("ApplicationPath").toString() != applicationpath);
+    if (fixedport && (settings.value("FixedPort").toBool() != fixedport ||
+         settings.value("PortNumber").toInt() != portnumber) && isPortInUse(portnumber))
+    {
+        QString error = QString(QWidget::tr("The specified fixed port is already in use. Please provide any other valid port."));
+        QMessageBox::critical(Q_NULLPTR, QString(QWidget::tr("Fatal Error")), error);
+    }
+    else
+    {
+        m_needRestart = (settings.value("FixedPort").toBool() != fixedport ||
+                         settings.value("PortNumber").toInt() != portnumber ||
+                         settings.value("PythonPath").toString() != pythonpath ||
+                         settings.value("ApplicationPath").toString() != applicationpath);
 
-    settings.setValue("BrowserCommand", browsercommand);
-    settings.setValue("FixedPort", fixedport);
-    settings.setValue("PortNumber", portnumber);
-    settings.setValue("OpenTabAtStartup", opentabatstartup);
-    settings.setValue("PythonPath", pythonpath);
-    settings.setValue("ApplicationPath", applicationpath);
+        settings.setValue("BrowserCommand", browsercommand);
+        settings.setValue("FixedPort", fixedport);
+        settings.setValue("PortNumber", portnumber);
+        settings.setValue("OpenTabAtStartup", opentabatstartup);
+        settings.setValue("PythonPath", pythonpath);
+        settings.setValue("ApplicationPath", applicationpath);
 
-    settings.sync();
+        settings.sync();
+    }
 
     emit accepted(m_needRestart);
     emit closing(true);
@@ -104,3 +120,17 @@ void ConfigWindow::on_chkFixedPort_stateChanged(int state)
         ui->spinPortNumber->setEnabled(false);
 }
 
+bool ConfigWindow::isPortInUse(const quint16 port) const
+{
+    QTcpSocket socket;
+
+    // Bind the socket on the specified port.
+    socket.bind(port, QTcpSocket::DontShareAddress);
+
+    // Returns the host port number of the local socket if available; otherwise returns 0
+    quint16 tmpPort = socket.localPort();
+    if (tmpPort == 0)
+        return true;
+
+    return false;
+}

runtime/ConfigWindow.h

@@ -24,6 +24,7 @@ class ConfigWindow : public QDialog
 
 public:
     explicit ConfigWindow(QWidget *parent = Q_NULLPTR);
+    void setConfigValues();
 
 signals:
     void accepted(bool needRestart);
@@ -39,6 +40,7 @@ private:
     bool m_needRestart;
 
     void initConfigWindow();
+    bool isPortInUse(const quint16 port) const;
 };
 
 #endif // CONFIGWINDOW_H

runtime/MenuActions.cpp

@@ -68,6 +68,7 @@ void MenuActions::onConfig()
     if (!m_configWindow)
         m_configWindow = new ConfigWindow();
 
+    m_configWindow->setConfigValues();
     m_configWindow->show();
     m_configWindow->raise();
     m_configWindow->activateWindow();

runtime/Runtime.cpp

@@ -342,20 +342,6 @@ FloatingWindow * Runtime::createFloatingWindow(MenuActions *menuActions)
     return floatingWindow;
 }
 
-bool Runtime::isPortInUse(const quint16 port) const
-{
-    QTcpSocket socket;
-
-    // Bind the socket on the specified port.
-    socket.bind(port, QTcpSocket::DontShareAddress);
-
-    // Returns the host port number of the local socket if available; otherwise returns 0
-    quint16 tmpPort = socket.localPort();
-    if (tmpPort == 0)
-        return true;
-
-    return false;
-}
 
 void Runtime::openConfigureWindow(const QString errorMsg)
 {
@@ -411,16 +397,6 @@ Server * Runtime::startServerLoop(QString key)
 
     while (!done)
     {
-        if (isPortInUse(m_port))
-        {
-            QString error = QString(QWidget::tr("The specified port is already in use."));
-
-            // Open the configuration window
-            openConfigureWindow(error);
-
-            continue;
-        }
-
         server = startServer(key);
         if (server == NULL)
         {

runtime/Runtime.h

@@ -60,7 +60,6 @@ private:
     void openBrowserTab(QString url) const;
     QString serverRequest(QUrl url, QString path);
     bool pingServer(QUrl url);
-    bool isPortInUse(const quint16 port) const;
     void openConfigureWindow(const QString errorMsg);
 
 private slots: