neovim/runtime/lua/vim/keymap.lua
Lewis Russell 3572319b4c feat(vim.validate): improve fast form and deprecate spec form
Problem:

`vim.validate()` takes two forms when it only needs one.

Solution:

- Teach the fast form all the features of the spec form.
- Deprecate the spec form.
- General optimizations for both forms.
- Add a `message` argument which can be used alongside or in place
  of the `optional` argument.
2024-10-21 11:32:06 +01:00

133 lines
3.7 KiB
Lua

local keymap = {}
--- Table of |:map-arguments|.
--- Same as |nvim_set_keymap()| {opts}, except:
--- - {replace_keycodes} defaults to `true` if "expr" is `true`.
---
--- Also accepts:
--- @class vim.keymap.set.Opts : vim.api.keyset.keymap
--- @inlinedoc
---
--- Creates buffer-local mapping, `0` or `true` for current buffer.
--- @field buffer? integer|boolean
---
--- Make the mapping recursive. Inverse of {noremap}.
--- (Default: `false`)
--- @field remap? boolean
--- Defines a |mapping| of |keycodes| to a function or keycodes.
---
--- Examples:
---
--- ```lua
--- -- Map "x" to a Lua function:
--- vim.keymap.set('n', 'x', function() print("real lua function") end)
--- -- Map "<leader>x" to multiple modes for the current buffer:
--- vim.keymap.set({'n', 'v'}, '<leader>x', vim.lsp.buf.references, { buffer = true })
--- -- Map <Tab> to an expression (|:map-<expr>|):
--- vim.keymap.set('i', '<Tab>', function()
--- return vim.fn.pumvisible() == 1 and "<C-n>" or "<Tab>"
--- end, { expr = true })
--- -- Map "[%%" to a <Plug> mapping:
--- vim.keymap.set('n', '[%%', '<Plug>(MatchitNormalMultiBackward)')
--- ```
---
---@param mode string|string[] Mode "short-name" (see |nvim_set_keymap()|), or a list thereof.
---@param lhs string Left-hand side |{lhs}| of the mapping.
---@param rhs string|function Right-hand side |{rhs}| of the mapping, can be a Lua function.
---@param opts? vim.keymap.set.Opts
---
---@see |nvim_set_keymap()|
---@see |maparg()|
---@see |mapcheck()|
---@see |mapset()|
function keymap.set(mode, lhs, rhs, opts)
vim.validate('mode', mode, { 'string', 'table' })
vim.validate('lhs', lhs, 'string')
vim.validate('rhs', rhs, { 'string', 'function' })
vim.validate('opts', opts, 'table', true)
opts = vim.deepcopy(opts or {}, true)
---@cast mode string[]
mode = type(mode) == 'string' and { mode } or mode
if opts.expr and opts.replace_keycodes ~= false then
opts.replace_keycodes = true
end
if opts.remap == nil then
-- default remap value is false
opts.noremap = true
else
-- remaps behavior is opposite of noremap option.
opts.noremap = not opts.remap
opts.remap = nil ---@type boolean?
end
if type(rhs) == 'function' then
opts.callback = rhs
rhs = ''
end
if opts.buffer then
local bufnr = opts.buffer == true and 0 or opts.buffer --[[@as integer]]
opts.buffer = nil ---@type integer?
for _, m in ipairs(mode) do
vim.api.nvim_buf_set_keymap(bufnr, m, lhs, rhs, opts)
end
else
opts.buffer = nil
for _, m in ipairs(mode) do
vim.api.nvim_set_keymap(m, lhs, rhs, opts)
end
end
end
--- @class vim.keymap.del.Opts
--- @inlinedoc
---
--- Remove a mapping from the given buffer.
--- When `0` or `true`, use the current buffer.
--- @field buffer? integer|boolean
--- Remove an existing mapping.
--- Examples:
---
--- ```lua
--- vim.keymap.del('n', 'lhs')
---
--- vim.keymap.del({'n', 'i', 'v'}, '<leader>w', { buffer = 5 })
--- ```
---
---@param modes string|string[]
---@param lhs string
---@param opts? vim.keymap.del.Opts
---@see |vim.keymap.set()|
function keymap.del(modes, lhs, opts)
vim.validate('mode', modes, { 'string', 'table' })
vim.validate('lhs', lhs, 'string')
vim.validate('opts', opts, 'table', true)
opts = opts or {}
modes = type(modes) == 'string' and { modes } or modes
--- @cast modes string[]
local buffer = false ---@type false|integer
if opts.buffer ~= nil then
buffer = opts.buffer == true and 0 or opts.buffer --[[@as integer]]
end
if buffer == false then
for _, mode in ipairs(modes) do
vim.api.nvim_del_keymap(mode, lhs)
end
else
for _, mode in ipairs(modes) do
vim.api.nvim_buf_del_keymap(buffer, mode, lhs)
end
end
end
return keymap