On macOS, key combinations with the Return key do not get delivered
through NSView::keyDown, but they are seen by the
QCocoaNSMenu::menuHasKeyEquivalent override. We already use that
override to check whether any menu item uses a matching shortcut, and
give Qt's focus object a chance to override the shortcut. The key
mapper used the NSNewlineCharacter '\n' for Qt::Key_Return.
However, the character we get from macOS for the return key is the
NSCarriageReturnCharacter character, '\r'. This makes the lookup
fail, and shortcut overrides are not delivered for shortcuts using
Qt::Key_Return.
To fix this, map Qt::Key_Return to NSCarriageReturnCharacter. The
inverse mapping maps both NSCarriageReturnCharacter and
NSNewlineCharacter to Qt::Key_Return, and there are no other users
of this function in Qt.
Pick-to: 6.5 6.4
Fixes: QTBUG-107526
Change-Id: I716190adf3cd94697e2b3ad1afc25b95d8ebde25
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
0835537c3c