macOS: Make QMacMime's handler scope type-safe

The value indicates for which systems the handler is relevant, e.g.
clipboard and/or drag'n'drop. Rename the enum from "MimeType", which is
something else already, to "HandlerScope".

Make the enum a scoped enum to avoid implicit conversion to uchar, and
to allow for better value names. Use the type in APIs and only convert
to uchar when needed.

Make respective arguments default to both DnD and clipboard implicitly,
instead of explicitly interpreting an invalid zero-value as a default
value.

Task-number: QTBUG-93632
Change-Id: I85ab982f6c9fe78ea4d030dd0b0791c8ab866f67
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
index ef2eaa391e..073807fd2a 100644
--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
+++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
@@ -98,7 +98,7 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
     m_drag = o;
     m_executed_drop_action = Qt::IgnoreAction;
 
-    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacMime::MIME_DND);
+    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacMime::HandlerScope::DnD);
     m_drag->mimeData()->setData("application/x-qt-mime-type-name"_L1, QByteArray("dummy"));
     dragBoard.setMimeData(m_drag->mimeData(), QMacPasteboard::LazyRequest);
 
@@ -305,7 +305,7 @@ QStringList QCocoaDropData::formats_sys() const
         qDebug("DnD: Cannot get PasteBoard!");
         return formats;
     }
-    formats = QMacPasteboard(board, QMacMime::MIME_DND).formats();
+    formats = QMacPasteboard(board, QMacMime::HandlerScope::DnD).formats();
     return formats;
 }
 
@@ -317,7 +317,7 @@ QVariant QCocoaDropData::retrieveData_sys(const QString &mimeType, QMetaType typ
         qDebug("DnD: Cannot get PasteBoard!");
         return data;
     }
-    data = QMacPasteboard(board, QMacMime::MIME_DND).retrieveData(mimeType, type);
+    data = QMacPasteboard(board, QMacMime::HandlerScope::DnD).retrieveData(mimeType, type);
     CFRelease(board);
     return data;
 }
@@ -330,7 +330,7 @@ bool QCocoaDropData::hasFormat_sys(const QString &mimeType) const
         qDebug("DnD: Cannot get PasteBoard!");
         return has;
     }
-    has = QMacPasteboard(board, QMacMime::MIME_DND).hasFormat(mimeType);
+    has = QMacPasteboard(board, QMacMime::HandlerScope::DnD).hasFormat(mimeType);
     CFRelease(board);
     return has;
 }