viminal2/lua/scripts/chameleon.lua

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-- MIT License
-- Copyright (c) 2023 Shaun
-- <https://github.com/shaun-mathew/Chameleon.nvim>
local M = {}
local fn = vim.fn
local api = vim.api
M.original_color = nil
local get_kitty_background = function()
if M.original_color == nil then
fn.jobstart({ "kitty", "@", "get-colors" }, {
on_stdout = function(_, d, _)
for _, result in ipairs(d) do
if string.match(result, "^background") then
local color = vim.split(result, "%s+")[2]
M.original_color = color
break
end
end
end,
on_stderr = function(_, d, _)
if #d > 1 then
api.nvim_err_writeln("Chameleon.nvim: Error getting background. Make sure kitty remote control is turned on.")
end
end,
})
end
end
local change_background = function(color, sync)
local arg = 'background="' .. color .. '"'
local command = "kitty @ set-colors " .. arg
if not sync then
fn.jobstart(command, {
on_stderr = function(_, d, _)
if #d > 1 then
api.nvim_err_writeln(
"Chameleon.nvim: Error changing background. Make sure kitty remote control is turned on."
)
end
end,
})
else
fn.system(command)
end
end
local setup_autocmds = function()
local autocmd = api.nvim_create_autocmd
local autogroup = api.nvim_create_augroup
local bg_change = autogroup("BackgroundChange", { clear = true })
autocmd({ "ColorScheme", "VimResume" }, {
pattern = "*",
callback = function()
local color = string.format("#%06X", vim.api.nvim_get_hl(0, { name = "Normal" }).bg)
change_background(color)
end,
group = bg_change,
})
autocmd("User", {
pattern = "NvChadThemeReload",
callback = function()
local color = string.format("#%06X", vim.api.nvim_get_hl(0, { name = "Normal" }).bg)
change_background(color)
end,
group = bg_change,
})
autocmd({ "VimLeavePre", "VimSuspend" }, {
callback = function()
if M.original_color ~= nil then
change_background(M.original_color, true)
-- Looks like it was silently fixed in NVIM 0.10. At least, I can't reproduce it anymore,
-- so for now disable it and see if anyone reports it again.
-- https://github.com/neovim/neovim/issues/21856
-- vim.cmd[[sleep 10m]]
end
end,
group = autogroup("BackgroundRestore", { clear = true }),
})
end
M.setup = function()
get_kitty_background()
setup_autocmds()
end
return M