urbit/pkg/arvo/app/herm.hoon
fang 74924d3468
webterm: update for nu-dill, rewrite with xterm.js
Updates /app/herm and dependencies to work with latest dill, and
rewrites the entire webterm frontend to use xterm.js for rendering.

Webterm code needs a bit more work. Its subscription handling might
want to be moved out, it needs to handle resizing, react to landscape
theme changes, etc.
2021-03-08 16:19:33 +01:00

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:: herm: stand-in for term.c with http interface
::
/+ default-agent, dbug, verb
=, jael
|%
+$ state-0 [%0 ~]
--
::
=| state-0
=* state -
%+ verb |
%- agent:dbug
^- agent:gall
=> |%
++ request-tube
|= [bowl:gall from=mark to=mark next=?]
^- card:agent:gall
:* %pass /tube/[from]/[to]
%arvo %c %warp
our q.byk ~
::
?: next
[%next %c da+now /[from]/[to]]
[%sing %c da+now /[from]/[to]]
==
--
|_ =bowl:gall
+* this .
def ~(. (default-agent this %|) bowl)
::
++ on-init
^- (quip card:agent:gall _this)
:_ this
:: set up dill session subscription,
:: and ensure the tubes we use are in cache
::
:~ [%pass [%view %$ ~] %arvo %d %view ~]
(request-tube bowl %blit %json |)
(request-tube bowl %json %belt |)
==
::
++ on-save !>([%0 ~])
++ on-load
|= old=vase
^- (quip card:agent:gall _this)
[~ this(state [%0 ~])]
::
++ on-watch
|= =path
^- (quip card:agent:gall _this)
?> ?=([%session @ ~] path)
:: tell session to refresh, so new client knows what's on screen
::TODO should client be responsible for this?
[[%pass [%view %$ ~] %arvo %d %hail ~]~ this]
::
++ on-arvo
|= [=wire =sign-arvo]
^- (quip card:agent:gall _this)
?+ wire !!
:: pass on dill blits for the session
::
[%view %$ ~]
?. ?=([%dill %blit *] sign-arvo)
~| [%unexpected-sign [- +<]:sign-arvo]
!!
:_ this
%+ turn p.sign-arvo
|= =blit:dill
[%give %fact [%session %$ ~]~ %blit !>(blit)]
::
:: ensure the tubes we need remain in cache
::
[%tube @ @ ~]
=* from i.t.wire
=* to i.t.t.wire
?. ?=([%clay %writ *] sign-arvo)
~| [%unexpected-sign [- +<]:sign-arvo]
!!
:_ this
[(request-tube bowl from to &)]~
==
::
++ on-poke
|= [=mark =vase]
^- (quip card:agent:gall _this)
?. ?=(%belt mark)
~| [%unexpected-mark mark]
!!
:_ this
[%pass [%belt %$ ~] %arvo %d %belt !<(belt:dill vase)]~
::
++ on-leave on-leave:def
++ on-peek on-peek:def
++ on-agent on-agent:def
++ on-fail on-fail:def
--