[iOS 14] Cannot scroll properly in widgets on the Homescreen background layer

[Matchstic]

Describe the bug

Given a widget with a small area that scrolls due to an overflow, scrolling is not possible on iOS 14. This is caused by Apple changing the necessary method calls in touch forwarding to direct methods.

To Reproduce

N/A

Expected behavior

Widget interaction should work as expected in overflow'd regions.

Screenshots

N/A

System Info

• Device: any
• OS: iOS 14.0 onwards
• Xen HTML version: 2.0

Additional context

Existing solutions to this:

• libundirect -> tested, but would require manually updating search bytes per iOS version release (and per architecture) -> example: https://github.com/opa334/SafariPlus/blob/master/MobileSafari/Undirector.xmi

Further info: https://github.com/Matchstic/Xen-HTML/blob/fc859c45cde2a16f8d00e8102ec45d45b7d9f92d/Shared/Web%20Controller/XENHWidgetController.m#L943

An alternative approach could be to hook the hittest method in whatever is the parent of the background widget container. Check all the results from the children, and conditionally favour any WKScrollView that comes from the background.

[Matchstic]

This issue is effectively blocked until an approach to calling direct methods exists, that won't be a maintenance headache.