A11y improvements for GTK 4
There have been some new virtual methods added to GtkAccessibleText
for 4.16 and this takes a crack at implementing them in VTE.
This will need some additional review, possibly from @matthiasc or @ebassi as to if I'm holding the API right.
The get_extents
is unclear if I should be including a bounding box of the two character offsets or if it needs to grow to include the "wrap around" text. Though I assume in most cases we'd have text on the same line with regards to how this would be used via atspi.
0001-a11y-implement-get_offset-and-get_extents-for-GTK-4.patch