Commit 2a1adf71ab3dc748e79aa6b76ff1d40c7db77c67
2019-08-05T23:52:16
Fixed bug 4747 - [Patch] SDL_ShowMessageBox ignores BUTTON_RETURNKEY_DEFAULT flag Caleb Cornett SDL_ShowMessageBox on UIKit doesn't do anything special with buttons that are marked with the flag SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT. According to Apple's documentation on UIAlertController, a button can respond to a return key if it's marked as the preferredAction of the controller. SDL doesn't set a preferredAction currently, so I've attached a patch to fix that.
diff --git a/src/video/uikit/SDL_uikitmessagebox.m b/src/video/uikit/SDL_uikitmessagebox.m
index 7480f64..defb4d6 100644
--- a/src/video/uikit/SDL_uikitmessagebox.m
+++ b/src/video/uikit/SDL_uikitmessagebox.m
@@ -91,6 +91,10 @@ UIKit_ShowMessageBoxAlertController(const SDL_MessageBoxData *messageboxdata, in
clickedindex = (int)(sdlButton - messageboxdata->buttons);
}];
[alert addAction:action];
+
+ if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
+ alert.preferredAction = action;
+ }
}
if (messageboxdata->window) {