Problem: patch 1916 (fixed terminal size) not optimal
Solution: Add defines to make it easier changeable later
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: libvterm slightly outdated
Solution: Update libvterm from rev 818 to rev 839
Notable fix: libvterm now handles DECSM/DECRM with multiple arguents,
so several ncurses programs (e.g. nnn) can enable mouse properly when
run in Vim's terminal in XTerm.
closes: #12746
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Problem: Cannot debug the Kitty keyboard protocol with TermDebug.
Solution: Add Kitty keyboard protocol support to the libvterm fork.
Recognize the escape sequences that the protocol generates. Add
the 'keyprotocol' option to allow the user to specify for which
terminal what protocol is to be used, instead of hard-coding this.
Add recognizing the kitty keyboard protocol status.
Problem: Libvterm code lags behind the upstream version.
Solution: Include revision 727, but add the index instead of switching
between RGB and indexed.
Problem: Modifier keys are not always recognized.
Solution: Handle key codes generated by xterm with modifyOtherKeys set.
Add this to libvterm so we can debug it.
Problem: Cannot select text in a terminal with the mouse.
Solution: When a job in a terminal is not consuming mouse events, use them
for modeless selection. Also stop Insert mode when clicking in a
terminal window.
Problem: Libvterm ANSI colors can not always be recognized from the RGB
values. The default color is wrong when t_RB is empty.
Solution: Add the ANSI color index to VTermColor.
Problem: Can't use the alternate screen in a terminal window.
Solution: Initialze the alternate screen. (Yasuhiro Matsumoto, closes
#1957) Add term_getaltscreen().
Problem: No terminal emulator support. Cannot properly run commands in the
GUI. Cannot run a job interactively with an ssh connection.
Solution: Very early implementation of the :terminal command. Includes
libvterm converted to ANSI C. Many parts still missing.
