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|
local api = vim.api
local M = {
msg = nil, ---@type vim._extui.messages
cmd = nil, ---@type vim._extui.cmdline
ns = api.nvim_create_namespace('nvim._ext_ui'),
augroup = api.nvim_create_augroup('nvim._ext_ui', {}),
cmdheight = vim.o.cmdheight, -- 'cmdheight' option value set by user.
wins = { cmd = -1, dialog = -1, msg = -1, pager = -1 },
bufs = { cmd = -1, dialog = -1, msg = -1, pager = -1 },
cfg = {
enable = true,
msg = { -- Options related to the message module.
---@type 'cmd'|'msg' Where to place regular messages, either in the
---cmdline or in a separate ephemeral message window.
target = 'cmd',
timeout = 4000, -- Time a message is visible in the message window.
},
},
}
--- @type vim.api.keyset.win_config
local wincfg = { -- Default cfg for nvim_open_win().
relative = 'laststatus',
style = 'minimal',
col = 0,
row = 1,
width = 10000,
height = 1,
noautocmd = true,
}
local tab = 0
---Ensure target buffers and windows are still valid.
function M.check_targets()
local curtab = api.nvim_get_current_tabpage()
for _, type in ipairs({ 'cmd', 'dialog', 'msg', 'pager' }) do
local setopt = not api.nvim_buf_is_valid(M.bufs[type])
if setopt then
M.bufs[type] = api.nvim_create_buf(false, false)
end
if
tab ~= curtab
or not api.nvim_win_is_valid(M.wins[type])
or not api.nvim_win_get_config(M.wins[type]).zindex -- no longer floating
then
local cfg = vim.tbl_deep_extend('force', wincfg, {
focusable = type == 'pager',
mouse = type ~= 'cmd' and true or nil,
anchor = type ~= 'cmd' and 'SE' or nil,
hide = type ~= 'cmd' or M.cmdheight == 0 or nil,
border = type ~= 'msg' and 'none' or nil,
-- kZIndexMessages < zindex < kZIndexCmdlinePopupMenu (grid_defs.h), pager below others.
zindex = 200 + (type == 'cmd' and 1 or type == 'pager' and -1 or 0),
_cmdline_offset = type == 'cmd' and 0 or nil,
})
if tab ~= curtab and api.nvim_win_is_valid(M.wins[type]) then
cfg = api.nvim_win_get_config(M.wins[type])
api.nvim_win_close(M.wins[type], true)
end
M.wins[type] = api.nvim_open_win(M.bufs[type], false, cfg)
setopt = true
elseif api.nvim_win_get_buf(M.wins[type]) ~= M.bufs[type] then
api.nvim_win_set_buf(M.wins[type], M.bufs[type])
setopt = true
end
if setopt then
local name = { cmd = 'Cmd', dialog = 'Dialog', msg = 'Msg', pager = 'Pager' }
-- Fire a FileType autocommand with window context to let the user reconfigure local options.
-- First set 'eventignorewin' to avoid firing OptionSet and BufFilePost.
api.nvim_win_call(M.wins[type], function()
local ft = name[type]:sub(1, 1):lower() .. name[type]:sub(2)
api.nvim_set_option_value('filetype', ft, { scope = 'local' })
local ignore = 'all' .. (type == 'pager' and ',-TextYankPost' or '')
api.nvim_set_option_value('eventignorewin', ignore, { scope = 'local' })
api.nvim_set_option_value('wrap', true, { scope = 'local' })
api.nvim_set_option_value('linebreak', false, { scope = 'local' })
api.nvim_set_option_value('smoothscroll', true, { scope = 'local' })
api.nvim_set_option_value('swapfile', false, { scope = 'local' })
api.nvim_set_option_value('modifiable', true, { scope = 'local' })
api.nvim_set_option_value('bufhidden', 'hide', { scope = 'local' })
api.nvim_set_option_value('buftype', 'nofile', { scope = 'local' })
if type ~= 'msg' then
-- Use MsgArea and hide search highlighting in the cmdline window.
local hl = 'Normal:MsgArea'
hl = hl .. (type == 'cmd' and ',Search:MsgArea,CurSearch:MsgArea,IncSearch:MsgArea' or '')
api.nvim_set_option_value('winhighlight', hl, { scope = 'local' })
end
end)
api.nvim_buf_set_name(M.bufs[type], ('[%s]'):format(name[type]))
if type == 'pager' then
-- Close pager with `q`, same as `checkhealth`
api.nvim_buf_set_keymap(M.bufs.pager, 'n', 'q', '<Cmd>wincmd c<CR>', {})
elseif type == M.cfg.msg.target then
M.msg.prev_msg = '' -- Will no longer be visible.
end
end
end
tab = curtab
end
return M
|
