neovim/runtime/lua/vim/ui.lua
2024-10-31 11:55:23 +00:00

237 lines
7.6 KiB
Lua

local M = {}
--- Prompts the user to pick from a list of items, allowing arbitrary (potentially asynchronous)
--- work until `on_choice`.
---
--- Example:
---
--- ```lua
--- vim.ui.select({ 'tabs', 'spaces' }, {
--- prompt = 'Select tabs or spaces:',
--- format_item = function(item)
--- return "I'd like to choose " .. item
--- end,
--- }, function(choice)
--- if choice == 'spaces' then
--- vim.o.expandtab = true
--- else
--- vim.o.expandtab = false
--- end
--- end)
--- ```
---
---@generic T
---@param items T[] Arbitrary items
---@param opts table Additional options
--- - prompt (string|nil)
--- Text of the prompt. Defaults to `Select one of:`
--- - format_item (function item -> text)
--- Function to format an
--- individual item from `items`. Defaults to `tostring`.
--- - kind (string|nil)
--- Arbitrary hint string indicating the item shape.
--- Plugins reimplementing `vim.ui.select` may wish to
--- use this to infer the structure or semantics of
--- `items`, or the context in which select() was called.
---@param on_choice fun(item: T|nil, idx: integer|nil)
--- Called once the user made a choice.
--- `idx` is the 1-based index of `item` within `items`.
--- `nil` if the user aborted the dialog.
function M.select(items, opts, on_choice)
vim.validate('items', items, 'table')
vim.validate('on_choice', on_choice, 'function')
opts = opts or {}
local choices = { opts.prompt or 'Select one of:' }
local format_item = opts.format_item or tostring
for i, item in
ipairs(items --[[@as any[] ]])
do
table.insert(choices, string.format('%d: %s', i, format_item(item)))
end
local choice = vim.fn.inputlist(choices)
if choice < 1 or choice > #items then
on_choice(nil, nil)
else
on_choice(items[choice], choice)
end
end
--- Prompts the user for input, allowing arbitrary (potentially asynchronous) work until
--- `on_confirm`.
---
--- Example:
---
--- ```lua
--- vim.ui.input({ prompt = 'Enter value for shiftwidth: ' }, function(input)
--- vim.o.shiftwidth = tonumber(input)
--- end)
--- ```
---
---@param opts table? Additional options. See |input()|
--- - prompt (string|nil)
--- Text of the prompt
--- - default (string|nil)
--- Default reply to the input
--- - completion (string|nil)
--- Specifies type of completion supported
--- for input. Supported types are the same
--- that can be supplied to a user-defined
--- command using the "-complete=" argument.
--- See |:command-completion|
--- - highlight (function)
--- Function that will be used for highlighting
--- user inputs.
---@param on_confirm function ((input|nil) -> ())
--- Called once the user confirms or abort the input.
--- `input` is what the user typed (it might be
--- an empty string if nothing was entered), or
--- `nil` if the user aborted the dialog.
function M.input(opts, on_confirm)
vim.validate('opts', opts, 'table', true)
vim.validate('on_confirm', on_confirm, 'function')
opts = (opts and not vim.tbl_isempty(opts)) and opts or vim.empty_dict()
-- Note that vim.fn.input({}) returns an empty string when cancelled.
-- vim.ui.input() should distinguish aborting from entering an empty string.
local _canceled = vim.NIL
opts = vim.tbl_extend('keep', opts, { cancelreturn = _canceled })
local ok, input = pcall(vim.fn.input, opts)
if not ok or input == _canceled then
on_confirm(nil)
else
on_confirm(input)
end
end
--- Opens `path` with the system default handler (macOS `open`, Windows `explorer.exe`, Linux
--- `xdg-open`, …), or returns (but does not show) an error message on failure.
---
--- Expands "~/" and environment variables in filesystem paths.
---
--- Examples:
---
--- ```lua
--- -- Asynchronous.
--- vim.ui.open("https://neovim.io/")
--- vim.ui.open("~/path/to/file")
--- -- Use the "osurl" command to handle the path or URL.
--- vim.ui.open("gh#neovim/neovim!29490", { cmd = { 'osurl' } })
--- -- Synchronous (wait until the process exits).
--- local cmd, err = vim.ui.open("$VIMRUNTIME")
--- if cmd then
--- cmd:wait()
--- end
--- ```
---
---@param path string Path or URL to open
---@param opt? { cmd?: string[] } Options
--- - cmd string[]|nil Command used to open the path or URL.
---
---@return vim.SystemObj|nil # Command object, or nil if not found.
---@return nil|string # Error message on failure, or nil on success.
---
---@see |vim.system()|
function M.open(path, opt)
vim.validate('path', path, 'string')
local is_uri = path:match('%w+:')
if not is_uri then
path = vim.fs.normalize(path)
end
opt = opt or {}
local cmd ---@type string[]
local job_opt = { text = true, detach = true } --- @type vim.SystemOpts
if opt.cmd then
cmd = vim.list_extend(opt.cmd --[[@as string[] ]], { path })
elseif vim.fn.has('mac') == 1 then
cmd = { 'open', path }
elseif vim.fn.has('win32') == 1 then
if vim.fn.executable('rundll32') == 1 then
cmd = { 'rundll32', 'url.dll,FileProtocolHandler', path }
else
return nil, 'vim.ui.open: rundll32 not found'
end
elseif vim.fn.executable('xdg-open') == 1 then
cmd = { 'xdg-open', path }
job_opt.stdout = false
job_opt.stderr = false
elseif vim.fn.executable('wslview') == 1 then
cmd = { 'wslview', path }
elseif vim.fn.executable('explorer.exe') == 1 then
cmd = { 'explorer.exe', path }
elseif vim.fn.executable('lemonade') == 1 then
cmd = { 'lemonade', 'open', path }
else
return nil, 'vim.ui.open: no handler found (tried: wslview, explorer.exe, xdg-open, lemonade)'
end
return vim.system(cmd, job_opt), nil
end
--- Returns all URLs at cursor, if any.
--- @return string[]
function M._get_urls()
local urls = {} ---@type string[]
local bufnr = vim.api.nvim_get_current_buf()
local cursor = vim.api.nvim_win_get_cursor(0)
local row = cursor[1] - 1
local col = cursor[2]
local extmarks = vim.api.nvim_buf_get_extmarks(bufnr, -1, { row, col }, { row, col }, {
details = true,
type = 'highlight',
overlap = true,
})
for _, v in ipairs(extmarks) do
local details = v[4]
if details and details.url then
urls[#urls + 1] = details.url
end
end
local highlighter = vim.treesitter.highlighter.active[bufnr]
if highlighter then
local range = { row, col, row, col }
local ltree = highlighter.tree:language_for_range(range)
local lang = ltree:lang()
local query = vim.treesitter.query.get(lang, 'highlights')
if query then
local tree = assert(ltree:tree_for_range(range))
for _, match, metadata in query:iter_matches(tree:root(), bufnr, row, row + 1) do
for id, nodes in pairs(match) do
for _, node in ipairs(nodes) do
if vim.treesitter.node_contains(node, range) then
local url = metadata[id] and metadata[id].url
if url and match[url] then
for _, n in
ipairs(match[url] --[[@as TSNode[] ]])
do
urls[#urls + 1] =
vim.treesitter.get_node_text(n, bufnr, { metadata = metadata[url] })
end
end
end
end
end
end
end
end
if #urls == 0 then
-- If all else fails, use the filename under the cursor
table.insert(
urls,
vim._with({ go = { isfname = vim.o.isfname .. ',@-@' } }, function()
return vim.fn.expand('<cfile>')
end)
)
end
return urls
end
return M