Do not delete MacPasteboard instance on exit, resolves #1543

src/core/MacPasteboard.h

@@ -20,8 +20,9 @@
 
 #include <QMacPasteboardMime>
 #include <QTextCodec>
+#include <QObject>
 
-class MacPasteboard : public QMacPasteboardMime
+class MacPasteboard : public QObject, public QMacPasteboardMime
 {
 public:
     explicit MacPasteboard() : QMacPasteboardMime(MIME_ALL) {}

src/gui/Clipboard.cpp

@@ -24,14 +24,19 @@
 #include "core/Config.h"
 
 Clipboard* Clipboard::m_instance(nullptr);
+#ifdef Q_OS_MAC
+QPointer<MacPasteboard> Clipboard::m_pasteboard(nullptr);
+#endif
 
 Clipboard::Clipboard(QObject* parent)
     : QObject(parent)
     , m_timer(new QTimer(this))
-#ifdef Q_OS_MAC
-    , m_pasteboard(new MacPasteboard)
-#endif
 {
+#ifdef Q_OS_MAC
+    if (!m_pasteboard) {
+        m_pasteboard = new MacPasteboard();
+    }
+#endif
     m_timer->setSingleShot(true);
     connect(m_timer, SIGNAL(timeout()), SLOT(clearClipboard()));
     connect(qApp, SIGNAL(aboutToQuit()), SLOT(clearCopiedText()));

src/gui/Clipboard.h

@@ -21,6 +21,7 @@
 #include <QObject>
 #ifdef Q_OS_MAC
 #include "core/MacPasteboard.h"
+#include <QPointer>
 #endif
 
 class QTimer;
@@ -47,7 +48,9 @@ private:
 
     QTimer* m_timer;
 #ifdef Q_OS_MAC
-    QScopedPointer<MacPasteboard> m_pasteboard;
+    // This object lives for the whole program lifetime and we cannot delete it on exit,
+    // so ignore leak warnings. See https://bugreports.qt.io/browse/QTBUG-54832
+    static QPointer<MacPasteboard> m_pasteboard;
 #endif
     QString m_lastCopied;
 };