From 08f3a56285db12e88a3d49568d39afd7d1241484 Mon Sep 17 00:00:00 2001
From: RickyRister <42636155+RickyRister@users.noreply.github.com>
Date: Wed, 26 Mar 2025 17:54:34 -0700
Subject: [PATCH] Fix crash when right click floating card info window (#5773)

---
 cockatrice/resources/config/qtlogging.ini       |  2 ++
 .../widgets/cards/card_info_picture_widget.cpp  | 17 ++++++++++++++++-
 .../ui/widgets/cards/card_info_picture_widget.h |  2 ++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/cockatrice/resources/config/qtlogging.ini b/cockatrice/resources/config/qtlogging.ini
index a9f8dd893..33ce214d5 100644
--- a/cockatrice/resources/config/qtlogging.ini
+++ b/cockatrice/resources/config/qtlogging.ini
@@ -51,6 +51,8 @@
 #flow_widget = false
 #flow_widget.size = false
 
+# card_info_picture_widget = false
+
 # pixel_map_generator = false
 
 # filter_string = false
diff --git a/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.cpp b/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.cpp
index 546568a73..f4f699171 100644
--- a/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.cpp
+++ b/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.cpp
@@ -312,11 +312,26 @@ QMenu *CardInfoPictureWidget::createViewRelatedCardsMenu()
     return viewRelatedCards;
 }
 
+/**
+ * Finds the single instance of the MainWindow in this application.
+ */
+static MainWindow *findMainWindow()
+{
+    for (auto widget : QApplication::topLevelWidgets()) {
+        if (auto mainWindow = qobject_cast<MainWindow *>(widget)) {
+            return mainWindow;
+        }
+    }
+    // This code should be unreachable
+    qCritical() << "Could not find MainWindow in QApplication::topLevelWidgets";
+    return nullptr;
+}
+
 QMenu *CardInfoPictureWidget::createAddToOpenDeckMenu()
 {
     auto addToOpenDeckMenu = new QMenu(tr("Add card to deck"));
 
-    auto *mainWindow = qobject_cast<MainWindow *>(window());
+    auto mainWindow = findMainWindow();
     QList<AbstractTabDeckEditor *> deckEditorTabs = mainWindow->getTabSupervisor()->getDeckEditorTabs();
 
     if (deckEditorTabs.isEmpty()) {
diff --git a/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.h b/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.h
index 5f6500d92..a74028a7f 100644
--- a/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.h
+++ b/cockatrice/src/client/ui/widgets/cards/card_info_picture_widget.h
@@ -7,6 +7,8 @@
 #include <QTimer>
 #include <QWidget>
 
+inline Q_LOGGING_CATEGORY(CardInfoPictureWidgetLog, "card_info_picture_widget");
+
 class AbstractCardItem;
 class QMenu;