Fix "Save as .torrent file" button is visible before metadata retrieved

PR #23375.

src/base/bittorrent/sessionimpl.cpp

@@ -5715,6 +5715,25 @@ void SessionImpl::fetchPendingAlerts(const lt::time_duration time)
     m_nativeSession->pop_alerts(&m_alerts);
 }
 
+void SessionImpl::endAlertSequence(const int alertType, const qsizetype alertCount)
+{
+    qDebug() << "End alert sequence. Alert:" << lt::alert_name(alertType) << "Count:" << alertCount;
+
+    if (alertType == lt::add_torrent_alert::alert_type)
+    {
+        emit addTorrentAlertsReceived(alertCount);
+
+        if (!m_loadedTorrents.isEmpty())
+        {
+            if (isRestored())
+                m_torrentsQueueChanged = true;
+
+            emit torrentsLoaded(m_loadedTorrents);
+            m_loadedTorrents.clear();
+        }
+    }
+}
+
 TorrentContentLayout SessionImpl::torrentContentLayout() const
 {
     return m_torrentContentLayout;
@@ -5731,28 +5750,26 @@ void SessionImpl::readAlerts()
     fetchPendingAlerts();
 
     Q_ASSERT(m_loadedTorrents.isEmpty());
-    Q_ASSERT(m_receivedAddTorrentAlertsCount == 0);
 
     if (!isRestored())
         m_loadedTorrents.reserve(MAX_PROCESSING_RESUMEDATA_COUNT);
 
+    int previousAlertType = -1;
+    qsizetype alertSequenceSize = 0;
     for (lt::alert *a : m_alerts)
-        handleAlert(a);
-
-    if (m_receivedAddTorrentAlertsCount > 0)
     {
-        emit addTorrentAlertsReceived(m_receivedAddTorrentAlertsCount);
-        m_receivedAddTorrentAlertsCount = 0;
-
-        if (!m_loadedTorrents.isEmpty())
+        const int alertType = a->type();
+        if ((alertType != previousAlertType) && (previousAlertType != -1))
         {
-            if (isRestored())
-                m_torrentsQueueChanged = true;
-
-            emit torrentsLoaded(m_loadedTorrents);
-            m_loadedTorrents.clear();
+            endAlertSequence(previousAlertType, alertSequenceSize);
+            alertSequenceSize = 0;
         }
+
+        handleAlert(a);
+        ++alertSequenceSize;
+        previousAlertType = alertType;
     }
+    endAlertSequence(previousAlertType, alertSequenceSize);
 
     // Some torrents may become "finished" after different alerts handling.
     processPendingFinishedTorrents();
@@ -5760,8 +5777,6 @@ void SessionImpl::readAlerts()
 
 void SessionImpl::handleAddTorrentAlert(const lt::add_torrent_alert *alert)
 {
-    ++m_receivedAddTorrentAlertsCount;
-
     Q_ASSERT(!m_addTorrentAlertHandlers.isEmpty());
     if (m_addTorrentAlertHandlers.isEmpty()) [[unlikely]]
         return;

src/base/bittorrent/sessionimpl.h

@@ -628,6 +628,7 @@ namespace BitTorrent
         void populateAdditionalTrackersFromURL();
 
         void fetchPendingAlerts(lt::time_duration time = lt::time_duration::zero());
+        void endAlertSequence(int alertType, qsizetype alertCount);
 
         void moveTorrentStorage(const MoveStorageJob &job) const;
         void handleMoveTorrentStorageJobFinished(const Path &newPath);

src/gui/addnewtorrentdialog.cpp

@@ -511,7 +511,7 @@ void AddNewTorrentDialog::setCurrentContext(const std::shared_ptr<Context> conte
     {
         m_ui->lblMetaLoading->setVisible(false);
         m_ui->progMetaLoading->setVisible(false);
-        m_ui->buttonSave->setVisible(false);
+        m_ui->buttonSave->setVisible(true);
         setupTreeview();
     }
     else
@@ -523,6 +523,7 @@ void AddNewTorrentDialog::setCurrentContext(const std::shared_ptr<Context> conte
         m_ui->labelDateData->setText(tr("Not Available", "This date is unavailable"));
         updateDiskSpaceLabel();
         setMetadataProgressIndicator(true, tr("Retrieving metadata..."));
+        m_ui->buttonSave->setVisible(false);
     }
 
     TMMChanged(m_ui->comboTMM->currentIndex());