macOS: Text entry doesn't support press-and-hold to input accented characters.
Steps to reproduce
- Launch gtk3-demo
- Choose and run "Assistant" (or any application has text entry)
- In text entry, press and hold key 'A'.
Repeat 'a' in text entry.
The accented character popup window should appear and let user choose an accented character from it. See also: http://osxdaily.com/2017/03/22/type-accents-mac-easy/
gtk 3.24.3 macOS 10.14.2