This is very much incomplete, but it implements the import and export of surfaces. However functions related to setting and imported surface the parent of another surface is not done.
importer destructor destroys all imports made from the same client
Implement SetParentOf, no undoing yet
Add inner import type
Destroy child surface relationships when importing
A note
move init function upwards
use 0.29.0 crate
Move role string constants into the public
Use toplevel_like for surface checks in foreign
add methods to get the parent surface
Make sure ZXDG roles are public api
Consistent ordering of parameters on xdg_foreign impl methods
Let's update the changelog
Document how to use xdg_foreign
wl_shell_surface is likely invalid, so it cannot be imported or exported
Changelog suggestions
remove redundant inner ref cell
Remove all uses of the refcell like behavior
Allow compositor to export surfaces on server
Appease new clippy lints
then
Use string references and iterate in reverse to simplify removals
heed request for order