Prevent tunnels.conf save after errors with it.

src/Saver.h

@@ -19,7 +19,7 @@ public:
 
 signals:
     void reloadTunnelsConfigAndUISignal(const QString);
-
+    void showPreventedSaveTunnelsConfMessage();
 };
 
 #endif // SAVER_H

src/SaverImpl.cpp

@@ -11,7 +11,9 @@
 
 SaverImpl::SaverImpl(MainWindow *mainWindowPtr_, QList<MainWindowItem*>* configItems_, std::map<std::string,TunnelConfig*>* tunnelConfigs_) :
     configItems(configItems_), tunnelConfigs(tunnelConfigs_), confpath(), tunconfpath(), mainWindowPtr(mainWindowPtr_)
-{}
+{
+    QObject::connect(this, SIGNAL(showPreventedSaveTunnelsConfMessage()), mainWindowPtr, SLOT(showTunnelsPagePreventedMessage()));
+}
 
 SaverImpl::~SaverImpl() {}
 
@@ -37,7 +39,9 @@ bool SaverImpl::save(bool reloadAfterSave, const FocusEnum focusOn, const std::s
     }
 
     //save tunnels config
-    {
+    if (mainWindowPtr->isPreventSaveTunnelsMode()) {
+        emit showPreventedSaveTunnelsConfMessage();
+    }else{
         std::stringstream out;
 
         for (std::map<std::string,TunnelConfig*>::iterator it=tunnelConfigs->begin(); it!=tunnelConfigs->end(); ++it) {

src/SaverImpl.h

@@ -14,8 +14,7 @@
 class MainWindowItem;
 class TunnelConfig;
 
-class SaverImpl : public Saver
-{
+class SaverImpl : public Saver {
 public:
     SaverImpl(MainWindow *mainWindowPtr_, QList<MainWindowItem*>* configItems_, std::map<std::string,TunnelConfig*>* tunnelConfigs_);
     virtual ~SaverImpl();

src/mainwindow.cpp

@@ -16,6 +16,7 @@
 #include <QStyleHints>
 #include <QScreen>
 #include <QWindow>
+#include <QMessageBox>
 
 #include <assert.h>
 
@@ -68,6 +69,7 @@ MainWindow::MainWindow(std::shared_ptr<std::iostream> logStream_, QWidget *paren
     ,tunconfpath()
     ,tunnelConfigs()
     ,tunnelsPageUpdateListener(this)
+    ,preventSaveTunnelsBool(false)
     ,saverPtr(
          new SaverImpl(this,
                        &configItems,
@@ -778,6 +780,10 @@ void MainWindow::loadAllConfigs(SaverImpl* saverPtr){
 
 void MainWindow::DisableTunnelsPage() {
     ui->tunnelsScrollAreaWidgetContents->setEnabled(false);
+    ui->tunnelsScrollArea->setEnabled(false);
+    ui->addClientTunnelPushButton->setEnabled(false);
+    ui->addServerTunnelPushButton->setEnabled(false);
+    preventSaveTunnels();
 }
 
 void MainWindow::layoutTunnels() {
@@ -1135,3 +1141,14 @@ void MainWindow::syncLogLevel (int /*comboBoxIndex*/) {
     i2p::log::Logger().Reopen ();
 }
 
+void MainWindow::preventSaveTunnels() {
+    preventSaveTunnelsBool = true;
+}
+
+bool MainWindow::isPreventSaveTunnelsMode() {
+    return preventSaveTunnelsBool;
+}
+
+void MainWindow::showTunnelsPagePreventedMessage() {
+    QMessageBox::critical(this,QObject::tr("Error"),QObject::tr("Not saving tunnels configuration due to previous errors with it."));
+}

src/mainwindow.h

@@ -500,6 +500,8 @@ public:
     Ui::GeneralSettingsContentsForm* uiSettings;
     void adjustSizesAccordingToWrongLabel();
     bool applyTunnelsUiToConfigs();
+    void preventSaveTunnels();
+    bool isPreventSaveTunnelsMode();
 private:
     int settingsTitleLabelNominalHeight;
     TextBrowserTweaked1 * textBrowser;
@@ -894,9 +896,13 @@ private:
 
     //void onLoggingOptionsChange() {}
 
+    bool preventSaveTunnelsBool;
     SaverImpl* saverPtr;
 
     void DisableTunnelsPage();
+
+public slots:
+    void showTunnelsPagePreventedMessage();
 };
 
 #endif // MAINWINDOW_H