Disable force reannounce when it is not possible

Closes #12080.
PR #16551.

src/gui/transferlistwidget.cpp

@@ -924,6 +924,7 @@ void TransferListWidget::displayListMenu()
     TagSet tagsInAny;
     TagSet tagsInAll;
     bool hasInfohashV1 = false, hasInfohashV2 = false;
+    bool oneCanForceReannounce = false;
 
     for (const QModelIndex &index : selectedIndexes)
     {
@@ -987,7 +988,8 @@ void TransferListWidget::displayListMenu()
         else
             needsStart = true;
 
-        if (torrent->isPaused())
+        const bool isPaused = torrent->isPaused();
+        if (isPaused)
             needsStart = true;
         else
             needsPause = true;
@@ -1010,10 +1012,16 @@ void TransferListWidget::displayListMenu()
 
         first = false;
 
+        const bool rechecking = torrent->isChecking();
+        const bool queued = (BitTorrent::Session::instance()->isQueueingSystemEnabled() && torrent->isQueued());
+
+        if (!isPaused && !rechecking && !queued)
+            oneCanForceReannounce = true;
+
         if (oneHasMetadata && oneNotSeed && !allSameSequentialDownloadMode
             && !allSamePrioFirstlast && !allSameSuperSeeding && !allSameCategory
             && needsStart && needsForce && needsPause && needsPreview && !allSameAutoTMM
-            && hasInfohashV1 && hasInfohashV2)
+            && hasInfohashV1 && hasInfohashV2 && oneCanForceReannounce)
         {
             break;
         }
@@ -1135,11 +1143,14 @@ void TransferListWidget::displayListMenu()
     if (addedPreviewAction)
         listMenu->addSeparator();
     if (oneHasMetadata)
-    {
         listMenu->addAction(actionForceRecheck);
+    // We can not force reannounce torrents that are paused/errored/checking/missing files/queued.
+    // We may already have the tracker list from magnet url. So we can force reannounce torrents without metadata anyway.
     listMenu->addAction(actionForceReannounce);
+    actionForceReannounce->setEnabled(oneCanForceReannounce);
+    if (!oneCanForceReannounce)
+        actionForceReannounce->setToolTip(tr("Can not force reannounce if torrent is Paused/Queued/Errored/Checking"));
     listMenu->addSeparator();
-    }
     listMenu->addAction(actionOpenDestinationFolder);
     if (BitTorrent::Session::instance()->isQueueingSystemEnabled() && oneNotSeed)
     {