105 lines
3.8 KiB
Lua
105 lines
3.8 KiB
Lua
--
|
|
-- fancy-prompt.lua: the fancy multiline prompt you probably want
|
|
--
|
|
-- Copyright (c) 2016, Přemysl Janouch <p@janouch.name>
|
|
--
|
|
-- Permission to use, copy, modify, and/or distribute this software for any
|
|
-- purpose with or without fee is hereby granted.
|
|
--
|
|
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
-- SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
-- OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
-- CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
--
|
|
-- Beware that it is a hack and only goes about 90% of the way, which is why
|
|
-- this functionality is only available as a plugin in the first place
|
|
-- (well, and also for customizability).
|
|
--
|
|
-- The biggest problem is that the way we work with Readline is incompatible
|
|
-- with multiline prompts, and normal newlines just don't work. This is being
|
|
-- circumvented by using an overflowing single-line prompt with a specially
|
|
-- crafted character in the rightmost column that prevents the bar's background
|
|
-- from spilling all over the last line.
|
|
--
|
|
-- There is also a problem with C-r search rendering not clearing out the
|
|
-- background but to really fix that mode, we'd have to fully reimplement it
|
|
-- since its alternative prompt very often gets overriden by accident anyway.
|
|
|
|
degesch.hook_prompt (function (hook)
|
|
local current = degesch.current_buffer
|
|
local chan = current.channel
|
|
local s = current.server
|
|
|
|
local bg_color = "255"
|
|
local current_n = 0
|
|
local active = ""
|
|
for i, buffer in ipairs (degesch.buffers) do
|
|
if buffer == current then
|
|
current_n = i
|
|
elseif buffer.new_messages_count ~= buffer.new_unimportant_count then
|
|
if active ~= "" then active = active .. "," end
|
|
if buffer.highlighted then
|
|
active = active .. "!"
|
|
bg_color = "224"
|
|
end
|
|
active = active .. i
|
|
end
|
|
end
|
|
if active ~= "" then active = "(" .. active .. ")" end
|
|
local x = current_n .. ":" .. current.name
|
|
if chan and chan.users_len ~= 0 then
|
|
local params = ""
|
|
for mode, param in pairs (chan.param_modes) do
|
|
params = params .. " +" .. mode .. " " .. param
|
|
end
|
|
local modes = chan.no_param_modes .. params:sub (3)
|
|
if modes ~= "" then x = x .. "(+" .. modes .. ")" end
|
|
x = x .. "{" .. chan.users_len .. "}"
|
|
end
|
|
if current.hide_unimportant then x = x .. "<H>" end
|
|
|
|
local lines, cols = degesch.get_screen_size ()
|
|
x = x .. " " .. active .. string.rep (" ", cols)
|
|
|
|
-- Readline seems to be broken and completely corrupts the prompt
|
|
-- (tested on 7.0.003 Archlinux, 7.0-5 Debian buster)
|
|
x = x:gsub("[\128-\255]", "?")
|
|
|
|
-- Cut off extra characters and apply formatting, including the hack.
|
|
-- Note that this doesn't count with full-width or zero-width characters.
|
|
local overflow = utf8.offset (x, cols - 1)
|
|
if overflow then x = x:sub (1, overflow) end
|
|
x = "\x01\x1b[0;4;1;38;5;16m\x1b[48;5;" .. bg_color .. "m\x02" ..
|
|
x .. "\x01\x1b[0;4;1;7;38;5;" .. bg_color .. "m\x02 \x01\x1b[0;1m\x02"
|
|
|
|
local user_prefix = function (chan, user)
|
|
for i, chan_user in ipairs (chan.users) do
|
|
if chan_user.user == user then return chan_user.prefixes end
|
|
end
|
|
return ""
|
|
end
|
|
if s then
|
|
x = x .. "["
|
|
local state = s.state
|
|
if state == "disconnected" or state == "connecting" then
|
|
x = x .. "(" .. state .. ")"
|
|
elseif state ~= "registered" then
|
|
x = x .. "(unregistered)"
|
|
else
|
|
local user, modes = s.user, s.user_mode
|
|
if chan then x = x .. user_prefix (chan, user) end
|
|
x = x .. user.nickname
|
|
if modes ~= "" then x = x .. "(" .. modes .. ")" end
|
|
end
|
|
x = x .. "] "
|
|
else
|
|
-- There needs to be at least one character so that the cursor
|
|
-- doesn't get damaged by our hack in that last column
|
|
x = x .. "> "
|
|
end
|
|
return x
|
|
end)
|