Cursor Color and Style changes

[Shoozza]

MinTTY allows to change cursor styles and colors but mosh ignores them.
This would be useful for vim (different insert and normal mode cursors)

Mode-dependent cursor in vim:
CSI Ps SP q

Example: echo -ne '\e]12;#00FF00\a' # green cursor
http://code.google.com/p/mintty/wiki/Tips#Mode-dependent_cursor_in_vim

Changing colors:
OSC Ps ; Pt ST
OSC Ps ; Pt BEL

Example: echo -ne "\e[2 q" # non blinking block cursor
http://code.google.com/p/mintty/wiki/Tips#Changing_colours

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Xterm Control Sequences taken from
http://invisible-island.net/xterm/ctlseqs/ctlseqs.txt

[theeternalsw0rd]

Not just mintty. This is across the board. Mosh currently only looks for visibility and position of the cursor.

The spec is at http://vt100.net/docs/vt510-rm/DECSCUSR

[theeternalsw0rd]

There's also another sequence used by iTerm2 and Konsole https://code.google.com/p/iterm2/issues/detail?id=710
among others documented at http://vim.wikia.com/wiki/Change_cursor_shape_in_different_modes

In addition with tmux running, the codes must be further escaped by "\ePtmux;\e" and "\e"

To make matters worse, when using tmux if you have a remote tmux session within a local tmux session, you have to send multiple codes so that it will update on multiple ends. In my case I use Konsole on linux and iTerm2 on OSX and still have to send the xterm-based sequence to get tmux within tmux to display the correct cursor even though both ends should support the same sequence.

ssh works fine because it sends the full stream both ways, but with mosh's diff based system I'm not sure how feasible monitoring all this would be because I don't think it's something that can be queried, at least not across the board, and even if it can be queried, which code should it use and on which end.

Why cursor shape definition isn't a followed standard is beyond me. Makes portability extremely difficult.

[ddickstein]

+1 on this issue

[msva]

is it any work in this direction? :D

[xPMo]

Re: Tmux: Adding set -ga terminal-overrides ',*:Ss=\E[%p1%d q:Se=\E[2 q' to .tmux.conf is the way to allow tmux to pass cursor codes. Mosh still needs to support it, ofc.

[broander]

Cursor change should be possible, unlike a lot of the other open feature requests it won't add a lot of data overhead. Seems like the problem is there have been no new releases in years?

[kovasap]

+1 on this issue!

[NightMachinery]

This also works on Kitty. It would be great to support it.

printf '\x1b]12;%s\a' '#ffffe4e4c4c4'

[achernya]

It looks like this was supported in xterm per https://invisible-island.net/xterm/ctlseqs/ctlseqs.html

[redone9211]

i would like to contribute to this issue , can you let me know how i can solve it.

[achernya]

PR #1167 from Issue #1084 is a (partial?) solution to this.

[oscarmlage]

Any news or progress on this issue?

[i18nsite]

please merge #1292

It will be fine after I apply this patch

[martijnkruiten]

I've been using the changes from #1292 daily for quite a while and I haven't noticed any issues with it. It works as advertised.

[msva]

// just in case anybody interested, I merged #1292 and some other PRs form here in https://github.com/alphallc/mosh
Also, I've made Ubuntu PPA with mosh build from that fork at ppa:mva/mosh (https://launchpad.net/~mva/+archive/ubuntu/mosh)