From 0a11ffa805abfe38100b41f3fe2aaefa1a12e5ba Mon Sep 17 00:00:00 2001
From: octaeder <102688820+octaeder@users.noreply.github.com>
Date: Tue, 13 Feb 2024 03:52:04 +0100
Subject: [PATCH] TemplateSelector: Handle host not available

---
 src/templateselector.cpp | 27 +++++++++++++++++++++++++--
 src/templateselector.h   |  1 +
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/templateselector.cpp b/src/templateselector.cpp
index 1a63eb2a71..c61ba6ff15 100644
--- a/src/templateselector.cpp
+++ b/src/templateselector.cpp
@@ -104,6 +104,10 @@ TemplateSelector::TemplateSelector(QString name, QWidget *parent)
 
 TemplateSelector::~TemplateSelector()
 {
+    if (networkManager) {
+        networkManager->deleteLater();
+        networkManager=nullptr;
+    }
 }
 
 void TemplateSelector::addResource(AbstractTemplateResource *res)
@@ -157,7 +161,10 @@ const QNetworkRequest::Attribute tplAttributeItem = static_cast<QNetworkRequest:
  */
 void TemplateSelector::makeRequest(QString url, QString path,QTreeWidgetItem *item,bool download)
 {
-
+    if(!networkManager){
+        networkManager = new QNetworkAccessManager();
+        if(!networkManager) return;
+    }
     QString m_url=appendPath(url,path);
     if(download){
         // check if cached
@@ -179,6 +186,11 @@ void TemplateSelector::makeRequest(QString url, QString path,QTreeWidgetItem *it
     request.setAttribute(tplAttributeItem,QVariant::fromValue(item));
     QNetworkReply *reply = networkManager->get(request);
     connect(reply, &QNetworkReply::finished, this, &TemplateSelector::onRequestCompleted);
+#if QT_VERSION_MAJOR<6
+    connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError()));
+#else
+    connect(reply, SIGNAL(errorOccurred(QNetworkReply::NetworkError)), SLOT(onRequestError()));
+#endif
 }
 
 /*!
@@ -203,7 +215,6 @@ void TemplateSelector::saveToCache(const QByteArray &data, const QString &path)
     }
 }
 
-
 void TemplateSelector::itemExpanded(QTreeWidgetItem* item){
     bool populated=item->data(0,PopulatedRole).toBool();
     if(populated) return;
@@ -614,3 +625,15 @@ void TemplateSelector::openTemplateLocation()
 	}
 }
 
+void TemplateSelector::onRequestError()
+{
+    QNetworkReply *reply = qobject_cast<QNetworkReply *>(sender());
+    if (!reply) return;
+
+    QTreeWidgetItem *rootItem=reply->request().attribute(tplAttributeItem).value<QTreeWidgetItem*>();
+    if (!rootItem) return;
+    rootItem->child(0)->setText(0,tr("Repository not found. Network error:%1").arg("\n"+reply->errorString()));
+
+    networkManager->deleteLater();
+    networkManager=nullptr;
+}
diff --git a/src/templateselector.h b/src/templateselector.h
index a2a388fbe7..6a9ad4b89f 100644
--- a/src/templateselector.h
+++ b/src/templateselector.h
@@ -75,6 +75,7 @@ private slots:
 	void editTemplateInfo();
 	void removeTemplate();
 	void openTemplateLocation();
+	void onRequestError();
 
 private:
 	QString orDefault(const QString &val, const QString &defaultIfValEmpty) const