mirror of
https://github.com/neovim/neovim.git
synced 2025-11-04 01:34:25 +00:00
7589336120
The motivation for this update is Issue #15365, where background=light is not properly set for Nvim running from an Nvim :terminal. This can be encountered when e.g., opening a terminal to make git commits, which opens EDITOR=nvim in the nested terminal. Under the implementation of this commit, the OSC response always indicates a black or white foreground/background. While this may not reflect the actual foreground/background color, it permits 'background' to be retained for a nested Nvim instance running in the terminal emulator. The behaviour matches Vim.
469 lines
16 KiB
Lua
469 lines
16 KiB
Lua
--- Default mappings
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do
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--- Default maps for * and # in visual mode.
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---
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--- See |v_star-default| and |v_#-default|
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do
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local function region_chunks(region)
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local chunks = {}
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local maxcol = vim.v.maxcol
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for line, cols in vim.spairs(region) do
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local endcol = cols[2] == maxcol and -1 or cols[2]
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local chunk = vim.api.nvim_buf_get_text(0, line, cols[1], line, endcol, {})[1]
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table.insert(chunks, chunk)
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end
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return chunks
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end
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local function _visual_search(cmd)
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assert(cmd == '/' or cmd == '?')
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local region = vim.region(
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0,
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'.',
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'v',
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vim.api.nvim_get_mode().mode:sub(1, 1),
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vim.o.selection == 'inclusive'
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)
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local chunks = region_chunks(region)
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local esc_chunks = vim
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.iter(chunks)
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:map(function(v)
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return vim.fn.escape(v, cmd == '/' and [[/\]] or [[?\]])
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end)
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:totable()
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local esc_pat = table.concat(esc_chunks, [[\n]])
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local search_cmd = ([[%s\V%s%s]]):format(cmd, esc_pat, '\n')
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return '\27' .. search_cmd
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end
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vim.keymap.set('x', '*', function()
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return _visual_search('/')
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end, { desc = ':help v_star-default', expr = true, silent = true })
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vim.keymap.set('x', '#', function()
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return _visual_search('?')
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end, { desc = ':help v_#-default', expr = true, silent = true })
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end
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--- Map Y to y$. This mimics the behavior of D and C. See |Y-default|
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vim.keymap.set('n', 'Y', 'y$', { desc = ':help Y-default' })
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--- Use normal! <C-L> to prevent inserting raw <C-L> when using i_<C-O>. #17473
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---
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--- See |CTRL-L-default|
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vim.keymap.set('n', '<C-L>', '<Cmd>nohlsearch<Bar>diffupdate<Bar>normal! <C-L><CR>', {
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desc = ':help CTRL-L-default',
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})
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--- Set undo points when deleting text in insert mode.
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---
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--- See |i_CTRL-U-default| and |i_CTRL-W-default|
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vim.keymap.set('i', '<C-U>', '<C-G>u<C-U>', { desc = ':help i_CTRL-U-default' })
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vim.keymap.set('i', '<C-W>', '<C-G>u<C-W>', { desc = ':help i_CTRL-W-default' })
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--- Use the same flags as the previous substitution with &.
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---
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--- Use : instead of <Cmd> so that ranges are supported. #19365
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---
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--- See |&-default|
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vim.keymap.set('n', '&', ':&&<CR>', { desc = ':help &-default' })
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--- Use Q in visual mode to execute a macro on each line of the selection. #21422
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---
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--- Applies to @x and includes @@ too.
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vim.keymap.set(
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'x',
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'Q',
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':normal! @<C-R>=reg_recorded()<CR><CR>',
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{ silent = true, desc = ':help v_Q-default' }
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)
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vim.keymap.set(
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'x',
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'@',
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"':normal! @'.getcharstr().'<CR>'",
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{ silent = true, expr = true, desc = ':help v_@-default' }
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)
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--- Map |gx| to call |vim.ui.open| on the identifier under the cursor
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do
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-- TODO: use vim.region() when it lands... #13896 #16843
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local function get_visual_selection()
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local save_a = vim.fn.getreginfo('a')
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vim.cmd([[norm! "ay]])
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local selection = vim.fn.getreg('a', 1)
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vim.fn.setreg('a', save_a)
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return selection
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end
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local function do_open(uri)
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local _, err = vim.ui.open(uri)
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if err then
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vim.notify(err, vim.log.levels.ERROR)
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end
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end
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local gx_desc =
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'Opens filepath or URI under cursor with the system handler (file explorer, web browser, …)'
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vim.keymap.set({ 'n' }, 'gx', function()
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do_open(vim.fn.expand('<cfile>'))
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end, { desc = gx_desc })
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vim.keymap.set({ 'x' }, 'gx', function()
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do_open(get_visual_selection())
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end, { desc = gx_desc })
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end
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end
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--- Default menus
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do
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--- Right click popup menu
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-- TODO VimScript, no l10n
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vim.cmd([[
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aunmenu *
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vnoremenu PopUp.Cut "+x
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vnoremenu PopUp.Copy "+y
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anoremenu PopUp.Paste "+gP
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vnoremenu PopUp.Paste "+P
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vnoremenu PopUp.Delete "_x
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nnoremenu PopUp.Select\ All ggVG
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vnoremenu PopUp.Select\ All gg0oG$
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inoremenu PopUp.Select\ All <C-Home><C-O>VG
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anoremenu PopUp.-1- <Nop>
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anoremenu PopUp.How-to\ disable\ mouse <Cmd>help disable-mouse<CR>
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]])
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end
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--- Default autocommands. See |default-autocmds|
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do
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local nvim_terminal_augroup = vim.api.nvim_create_augroup('nvim_terminal', {})
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vim.api.nvim_create_autocmd('BufReadCmd', {
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pattern = 'term://*',
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group = nvim_terminal_augroup,
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desc = 'Treat term:// buffers as terminal buffers',
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nested = true,
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command = "if !exists('b:term_title')|call termopen(matchstr(expand(\"<amatch>\"), '\\c\\mterm://\\%(.\\{-}//\\%(\\d\\+:\\)\\?\\)\\?\\zs.*'), {'cwd': expand(get(matchlist(expand(\"<amatch>\"), '\\c\\mterm://\\(.\\{-}\\)//'), 1, ''))})",
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})
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vim.api.nvim_create_autocmd({ 'TermClose' }, {
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group = nvim_terminal_augroup,
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desc = 'Automatically close terminal buffers when started with no arguments and exiting without an error',
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callback = function(args)
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if vim.v.event.status == 0 then
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local info = vim.api.nvim_get_chan_info(vim.bo[args.buf].channel)
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local argv = info.argv or {}
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if #argv == 1 and argv[1] == vim.o.shell then
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vim.cmd({ cmd = 'bdelete', args = { args.buf }, bang = true })
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end
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end
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end,
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})
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vim.api.nvim_create_autocmd('TermRequest', {
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group = nvim_terminal_augroup,
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desc = 'Respond to OSC foreground/background color requests',
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callback = function(args)
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local fg_request = args.data == '\027]10;?'
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local bg_request = args.data == '\027]11;?'
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if fg_request or bg_request then
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-- WARN: This does not return the actual foreground/background color,
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-- but rather returns:
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-- - fg=white/bg=black when Nvim option 'background' is 'dark'
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-- - fg=black/bg=white when Nvim option 'background' is 'light'
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local red, green, blue = 0, 0, 0
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local bg_option_dark = vim.o.background == 'dark'
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if (fg_request and bg_option_dark) or (bg_request and not bg_option_dark) then
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red, green, blue = 65535, 65535, 65535
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end
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local command = fg_request and 10 or 11
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local data = string.format('\027]%d;rgb:%04x/%04x/%04x\007', command, red, green, blue)
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local channel = vim.bo[args.buf].channel
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vim.api.nvim_chan_send(channel, data)
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end
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end,
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})
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vim.api.nvim_create_autocmd('CmdwinEnter', {
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pattern = '[:>]',
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desc = 'Limit syntax sync to maxlines=1 in the command window',
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group = vim.api.nvim_create_augroup('nvim_cmdwin', {}),
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command = 'syntax sync minlines=1 maxlines=1',
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})
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vim.api.nvim_create_autocmd('SwapExists', {
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pattern = '*',
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desc = 'Skip the swapfile prompt when the swapfile is owned by a running Nvim process',
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group = vim.api.nvim_create_augroup('nvim_swapfile', {}),
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callback = function()
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local info = vim.fn.swapinfo(vim.v.swapname)
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local user = vim.uv.os_get_passwd().username
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local iswin = 1 == vim.fn.has('win32')
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if info.error or info.pid <= 0 or (not iswin and info.user ~= user) then
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vim.v.swapchoice = '' -- Show the prompt.
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return
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end
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vim.v.swapchoice = 'e' -- Choose "(E)dit".
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vim.notify(('W325: Ignoring swapfile from Nvim process %d'):format(info.pid))
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end,
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})
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end
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-- Only do the following when the TUI is attached
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local tty = nil
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for _, ui in ipairs(vim.api.nvim_list_uis()) do
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if ui.chan == 1 and ui.stdout_tty then
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tty = ui
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break
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end
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end
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if tty then
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local group = vim.api.nvim_create_augroup('nvim_tty', {})
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--- Set an option after startup (so that OptionSet is fired), but only if not
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--- already set by the user.
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---
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--- @param option string Option name
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--- @param value any Option value
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local function setoption(option, value)
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if vim.api.nvim_get_option_info2(option, {}).was_set then
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-- Don't do anything if option is already set
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return
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end
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-- Wait until Nvim is finished starting to set the option to ensure the
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-- OptionSet event fires.
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if vim.v.vim_did_enter == 1 then
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vim.o[option] = value
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else
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vim.api.nvim_create_autocmd('VimEnter', {
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group = group,
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once = true,
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nested = true,
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callback = function()
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setoption(option, value)
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end,
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})
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end
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end
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--- Guess value of 'background' based on terminal color.
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---
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--- We write Operating System Command (OSC) 11 to the terminal to request the
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--- terminal's background color. We then wait for a response. If the response
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--- matches `rgba:RRRR/GGGG/BBBB/AAAA` where R, G, B, and A are hex digits, then
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--- compute the luminance[1] of the RGB color and classify it as light/dark
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--- accordingly. Note that the color components may have anywhere from one to
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--- four hex digits, and require scaling accordingly as values out of 4, 8, 12,
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--- or 16 bits. Also note the A(lpha) component is optional, and is parsed but
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--- ignored in the calculations.
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---
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--- [1] https://en.wikipedia.org/wiki/Luma_%28video%29
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do
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--- Parse a string of hex characters as a color.
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---
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--- The string can contain 1 to 4 hex characters. The returned value is
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--- between 0.0 and 1.0 (inclusive) representing the intensity of the color.
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---
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--- For instance, if only a single hex char "a" is used, then this function
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--- returns 0.625 (10 / 16), while a value of "aa" would return 0.664 (170 /
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--- 256).
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---
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--- @param c string Color as a string of hex chars
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--- @return number? Intensity of the color
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local function parsecolor(c)
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if #c == 0 or #c > 4 then
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return nil
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end
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local val = tonumber(c, 16)
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if not val then
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return nil
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end
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local max = tonumber(string.rep('f', #c), 16)
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return val / max
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end
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--- Parse an OSC 11 response
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---
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--- Either of the two formats below are accepted:
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---
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--- OSC 11 ; rgb:<red>/<green>/<blue>
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---
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--- or
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---
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--- OSC 11 ; rgba:<red>/<green>/<blue>/<alpha>
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---
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--- where
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---
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--- <red>, <green>, <blue>, <alpha> := h | hh | hhh | hhhh
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---
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--- The alpha component is ignored, if present.
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---
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--- @param resp string OSC 11 response
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--- @return string? Red component
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--- @return string? Green component
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--- @return string? Blue component
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local function parseosc11(resp)
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local r, g, b
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r, g, b = resp:match('^\027%]11;rgb:(%x+)/(%x+)/(%x+)$')
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if not r and not g and not b then
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local a
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r, g, b, a = resp:match('^\027%]11;rgba:(%x+)/(%x+)/(%x+)/(%x+)$')
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if not a or #a > 4 then
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return nil, nil, nil
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end
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end
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if r and g and b and #r <= 4 and #g <= 4 and #b <= 4 then
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return r, g, b
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end
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return nil, nil, nil
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end
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local timer = assert(vim.uv.new_timer())
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local id = vim.api.nvim_create_autocmd('TermResponse', {
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group = group,
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nested = true,
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callback = function(args)
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local resp = args.data ---@type string
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local r, g, b = parseosc11(resp)
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if r and g and b then
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local rr = parsecolor(r)
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local gg = parsecolor(g)
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local bb = parsecolor(b)
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if rr and gg and bb then
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local luminance = (0.299 * rr) + (0.587 * gg) + (0.114 * bb)
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local bg = luminance < 0.5 and 'dark' or 'light'
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setoption('background', bg)
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end
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return true
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end
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end,
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})
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local query = '\027]11;?\007'
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-- tmux 3.3a and earlier do not query the parent terminal for background color. As of the
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-- writing of this comment, 3.3a is the latest release, so a passthrough sequence is necessary.
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-- The passthrough should be removed as soon as a tmux version later than 3.3a is released.
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-- See: https://github.com/neovim/neovim/pull/26557
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if os.getenv('TMUX') then
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query = string.format('\027Ptmux;%s\027\\', query:gsub('\027', '\027\027'))
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end
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io.stdout:write(query)
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timer:start(1000, 0, function()
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-- Delete the autocommand if no response was received
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vim.schedule(function()
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-- Suppress error if autocommand has already been deleted
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pcall(vim.api.nvim_del_autocmd, id)
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end)
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if not timer:is_closing() then
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timer:close()
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end
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end)
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end
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--- If the TUI (term_has_truecolor) was able to determine that the host
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--- terminal supports truecolor, enable 'termguicolors'. Otherwise, query the
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--- terminal (using both XTGETTCAP and SGR + DECRQSS). If the terminal's
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--- response indicates that it does support truecolor enable 'termguicolors',
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--- but only if the user has not already disabled it.
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do
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if tty.rgb then
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-- The TUI was able to determine truecolor support
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setoption('termguicolors', true)
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else
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local caps = {} ---@type table<string, boolean>
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require('vim.termcap').query({ 'Tc', 'RGB', 'setrgbf', 'setrgbb' }, function(cap, found)
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if not found then
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return
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end
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caps[cap] = true
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if caps.Tc or caps.RGB or (caps.setrgbf and caps.setrgbb) then
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setoption('termguicolors', true)
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end
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end)
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local timer = assert(vim.uv.new_timer())
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-- Arbitrary colors to set in the SGR sequence
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local r = 1
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local g = 2
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local b = 3
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local id = vim.api.nvim_create_autocmd('TermResponse', {
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group = group,
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nested = true,
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callback = function(args)
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local resp = args.data ---@type string
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local decrqss = resp:match('^\027P1%$r([%d;:]+)m$')
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if decrqss then
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-- The DECRQSS SGR response first contains attributes separated by
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-- semicolons, followed by the SGR itself with parameters separated
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-- by colons. Some terminals include "0" in the attribute list
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-- unconditionally; others do not. Our SGR sequence did not set any
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-- attributes, so there should be no attributes in the list.
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local attrs = vim.split(decrqss, ';')
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if #attrs ~= 1 and (#attrs ~= 2 or attrs[1] ~= '0') then
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return true
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end
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-- The returned SGR sequence should begin with 48:2
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local sgr = attrs[#attrs]:match('^48:2:([%d:]+)$')
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if not sgr then
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return true
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end
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-- The remaining elements of the SGR sequence should be the 3 colors
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-- we set. Some terminals also include an additional parameter
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-- (which can even be empty!), so handle those cases as well
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local params = vim.split(sgr, ':')
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if #params ~= 3 and (#params ~= 4 or (params[1] ~= '' and params[1] ~= '1')) then
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return true
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end
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if
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tonumber(params[#params - 2]) == r
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and tonumber(params[#params - 1]) == g
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and tonumber(params[#params]) == b
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then
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setoption('termguicolors', true)
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end
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return true
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end
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end,
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})
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-- Write SGR followed by DECRQSS. This sets the background color then
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-- immediately asks the terminal what the background color is. If the
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-- terminal responds to the DECRQSS with the same SGR sequence that we
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-- sent then the terminal supports truecolor.
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local decrqss = '\027P$qm\027\\'
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if os.getenv('TMUX') then
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decrqss = string.format('\027Ptmux;%s\027\\', decrqss:gsub('\027', '\027\027'))
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end
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io.stdout:write(string.format('\027[48;2;%d;%d;%dm%s', r, g, b, decrqss))
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timer:start(1000, 0, function()
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-- Delete the autocommand if no response was received
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vim.schedule(function()
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-- Suppress error if autocommand has already been deleted
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pcall(vim.api.nvim_del_autocmd, id)
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end)
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if not timer:is_closing() then
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timer:close()
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end
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end)
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end
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end
|
|
end
|