This is a continuation of the solid work done by @jcollie in PR #7864. I
checked with him if I could take over to continue the implementation.
His changes of last year have been adapted to be compatible with the
current GTK implementation. Aside from just "making it work", I also
dived into the portals and OpenURI implementation and made some
improvements there.
Notable improvements were:
- Improved lifecycle management of glib resources in the OpenURI
implementation
- More forgiving error handling in OpenURI implementation by adding more
fallbacks
- Fixed some memory leaks
- Less memory allocations in Portals implementation
- Added tests for building the Portals request path
Fixes#5991
374ed27214