No new version available notification

src/slic3r/GUI/GUI_App.cpp

@@ -1249,7 +1249,7 @@ bool GUI_App::on_init_inner()
                 std::string evt_string = into_u8(evt.GetString());
                 if (*Semver::parse(SLIC3R_VERSION) < *Semver::parse(evt_string)) {
                     auto notif_type = (evt_string.find("beta") != std::string::npos ? NotificationType::NewBetaAvailable : NotificationType::NewAlphaAvailable);
-                    this->plater_->get_notification_manager()->push_notification( notif_type
+                    this->plater_->get_notification_manager()->push_version_notification( notif_type
                         , NotificationManager::NotificationLevel::ImportantNotificationLevel
                         , Slic3r::format(_u8L("New prerelease version %1% is available."), evt_string)
                         , _u8L("See Releases page.")
@@ -3300,6 +3300,19 @@ void GUI_App::on_version_read(wxCommandEvent& evt)
         return;
     }
     if (*Semver::parse(SLIC3R_VERSION) >= *Semver::parse(into_u8(evt.GetString()))) {
+        if (m_app_updater->get_triggered_by_user())
+        {
+            std::string text = (*Semver::parse(into_u8(evt.GetString())) == Semver()) 
+                ? Slic3r::format(_u8L("Check for application update has failed."))
+                : Slic3r::format(_u8L("No new version is available. Latest release version is %1%."), evt.GetString());
+
+            this->plater_->get_notification_manager()->push_version_notification(NotificationType::NoNewReleaseAvailable
+                , NotificationManager::NotificationLevel::RegularNotificationLevel
+                , text
+                , std::string()
+                , std::function<bool(wxEvtHandler*)>()
+            );
+        }
         return;
     }
     // notification

src/slic3r/GUI/NotificationManager.cpp

@@ -2246,6 +2246,29 @@ void  NotificationManager::push_simplify_suggestion_notification(const std::stri
 	notification->object_id = object_id;
 	push_notification_data(std::move(notification), 0);
 }
+void NotificationManager::push_version_notification(NotificationType type, NotificationLevel level, const std::string& text, const std::string& hypertext, std::function<bool(wxEvtHandler*)> callback)
+{
+	assert (type == NotificationType::NewAlphaAvailable
+		 || type == NotificationType::NewBetaAvailable 
+		 || type == NotificationType::NoNewReleaseAvailable);
+
+	for (std::unique_ptr<PopNotification>& notification : m_pop_notifications) {
+		// NoNewReleaseAvailable must not show if alfa / beta is on.
+		NotificationType nttype = notification->get_type();
+		if (type == NotificationType::NoNewReleaseAvailable
+			&& (notification->get_type() == NotificationType::NewAlphaAvailable 
+				|| notification->get_type() == NotificationType::NewBetaAvailable)) {
+			return;
+		}
+		// NoNewReleaseAvailable must close if alfa / beta is being push.
+		if (notification->get_type() == NotificationType::NoNewReleaseAvailable
+			&& (type == NotificationType::NewAlphaAvailable
+				|| type == NotificationType::NewBetaAvailable)) {
+			notification->close();
+		}
+	}
+	push_notification(type, level, text, hypertext, callback);
+}
 void NotificationManager::close_notification_of_type(const NotificationType type)
 {
 	for (std::unique_ptr<PopNotification> &notification : m_pop_notifications) {

src/slic3r/GUI/NotificationManager.hpp

@@ -56,6 +56,7 @@ enum class NotificationType
 	// Like NewAppAvailable but with text and link for alpha / bet release
 	NewAlphaAvailable,
 	NewBetaAvailable,
+	NoNewReleaseAvailable,
 	// Notification on the start of PrusaSlicer, when updates of system profiles are detected.
 	// Contains a hyperlink to execute installation of the new system profiles.
 	PresetUpdateAvailable,
@@ -191,6 +192,9 @@ public:
 	// Object warning with ObjectID, closes when object is deleted. ID used is of object not print like in slicing warning.
 	void push_simplify_suggestion_notification(const std::string& text, ObjectID object_id, const std::string& hypertext = "",
 		std::function<bool(wxEvtHandler*)> callback = std::function<bool(wxEvtHandler*)>());
+	// Could be either NewAlphaAvailable, NewBetaAvailable or NoNewReleaseAvailable - this function only makes sure only 1 is visible. 
+	void push_version_notification(NotificationType type, NotificationLevel level, const std::string& text, const std::string& hypertext,
+		std::function<bool(wxEvtHandler*)> callback);
 	// Close object warnings, whose ObjectID is not in the list.
 	// living_oids is expected to be sorted.
 	void remove_simplify_suggestion_of_released_objects(const std::vector<ObjectID>& living_oids);

src/slic3r/Utils/AppUpdater.cpp

@@ -323,6 +323,11 @@ void AppUpdater::priv::parse_version_string(const std::string& body)
 		return;
 #endif // 0
 		BOOST_LOG_TRIVIAL(error) << "Could not find property tree in version file. Checking for application update has failed.";
+		// Lets send event with current version, this way if user triggered this check, it will notify him about no new version online.
+		std::string version = Semver().to_string();
+		wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_VERSION_ONLINE);
+		evt->SetString(GUI::from_u8(version));
+		GUI::wxGetApp().QueueEvent(evt);
 		return;
 	}
 	std::string tree_string = body.substr(start);