This change implements reporting of the caret position from Editor, as well
as Windows, macOS, Android support. As a result, the IME composition window
on Windows and macOS is now positioned correctly.
References: https://todo.sr.ht/~eliasnaur/gio/246
Signed-off-by: Elias Naur <mail@eliasnaur.com>
When a text range in the IME snippet is replaced, the replacement
is discarded if the range don't overlap with the snippet range. However,
the replacement is more relevant than whatever snippet is current.
This change discards the snippet in case of no overlap.
As a bonus, IMEs that leaves the snippet range at [0:0] will have the
snippet track the composing region now.
The FuzzIME test is adjusted to always generate replacements that overlap
Editor content; otherwise the IME snippet and editor state can't be expected
to match.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
They're easier to test and can be re-used for macOS/Windows.
While here, add a Go 1.18 build tag to app/ime_test.go; it relies
on Go 1.18 fuzzing.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur