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init.lua
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init.lua
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local require = require("noice.util.lazy")
local Config = require("noice.config")
local ConfigViews = require("noice.config.views")
local Util = require("noice.util")
local Object = require("nui.object")
local Format = require("noice.text.format")
---@class NoiceViewBaseOptions
---@field buf_options? table<string,any>
---@field backend string
---@field fallback string Fallback view in case the backend could not be loaded
---@field format? NoiceFormat|string
---@field align? NoiceAlign
---@field lang? string
---@field view string
---@alias NoiceViewOptions NoiceViewBaseOptions|NoiceNuiOptions|NoiceNotifyOptions
---@class NoiceView
---@field _tick number
---@field _messages NoiceMessage[]
---@field _id integer
---@field _opts NoiceViewOptions
---@field _view_opts NoiceViewOptions
---@field _route_opts NoiceViewOptions
---@field _visible boolean
---@field _instance "opts" | "view" | "backend"
---@overload fun(opts?: NoiceViewOptions): NoiceView
local View = Object("NoiceView")
---@type {view:NoiceView, opts:NoiceViewOptions}[]
View._views = {}
---@param view string
---@param opts NoiceViewOptions
function View.get_view(view, opts)
local opts_orig = vim.deepcopy(opts)
opts = vim.tbl_deep_extend("force", ConfigViews.get_options(view), opts or {}, { view = view })
---@diagnostic disable-next-line: undefined-field
opts.backend = opts.backend or opts.render or view
-- check if we already loaded this backend
for _, v in ipairs(View._views) do
if v.opts.view == opts.view then
if v.view._instance == "opts" and vim.deep_equal(opts, v.opts) then
return v.view
end
if v.view._instance == "view" then
return v.view
end
end
if v.opts.backend == opts.backend then
if v.view._instance == "backend" then
return v.view
end
end
end
---@type NoiceView
local mod = require("noice.view.backend." .. opts.backend)
local init_opts = vim.deepcopy(opts)
local ret = mod(opts)
if not ret:is_available() and opts.fallback then
return View.get_view(opts.fallback, opts_orig)
end
table.insert(View._views, { view = ret, opts = init_opts })
return ret
end
local _id = 0
---@param opts? NoiceViewOptions
function View:init(opts)
_id = _id + 1
self._id = _id
self._tick = 0
self._messages = {}
self._opts = opts or {}
self._visible = false
self._view_opts = vim.deepcopy(self._opts)
self._instance = "opts"
self:update_options()
end
function View:is_available()
return true
end
function View:update_options() end
---@param messages NoiceMessage|NoiceMessage[]
---@param opts? {format?: boolean}
function View:push(messages, opts)
opts = opts or {}
messages = vim.tbl_islist(messages) and messages or { messages }
---@cast messages NoiceMessage[]
for _, message in ipairs(messages) do
if opts.format ~= false then
message = Format.format(message, self._opts.format)
end
table.insert(self._messages, message)
end
end
function View:clear()
self._messages = {}
self._route_opts = {}
end
function View:check_options()
---@type NoiceViewOptions
local old = vim.deepcopy(self._opts)
self._opts = vim.tbl_deep_extend("force", vim.deepcopy(self._view_opts), self._route_opts or {})
self:update_options()
if not vim.deep_equal(old, self._opts) then
self:reset(old, self._opts)
end
end
---@param messages NoiceMessage[]
---@param opts? {format?: boolean}
function View:set(messages, opts)
opts = opts or {}
self:clear()
self:push(messages, opts)
end
function View:display()
if #self._messages > 0 then
Format.align(self._messages, self._opts.align)
self:check_options()
Util.try(self.show, self)
self._visible = true
else
if self._visible then
self:hide()
end
self._visible = false
end
return true
end
---@param old NoiceViewOptions
---@param new NoiceViewOptions
function View:reset(old, new) end
function View:show()
Util.error("Missing implementation `View:show()` for %s", self)
end
function View:hide()
Util.error("Missing implementation `View:hide()` for %s", self)
end
---@param messages? NoiceMessage[]
function View:height(messages)
local ret = 0
for _, m in ipairs(messages or self._messages) do
ret = ret + m:height()
end
return ret
end
---@param messages? NoiceMessage[]
function View:width(messages)
local ret = 0
for _, m in ipairs(messages or self._messages) do
ret = math.max(ret, m:width())
end
return ret
end
function View:content()
return table.concat(
vim.tbl_map(
---@param m NoiceMessage
function(m)
return m:content()
end,
self._messages
),
"\n"
)
end
function View:set_win_options(win)
vim.wo[win].winbar = ""
vim.wo[win].foldenable = false
if self._opts.win_options then
require("nui.utils")._.set_win_options(win, self._opts.win_options)
end
-- reset cursor on show
vim.api.nvim_win_set_cursor(win, { 1, 0 })
if self._opts.type == "split" then
vim.schedule(function()
-- this is needed to make the nui split behave with vim.go.splitkeep
if win and vim.api.nvim_win_is_valid(win) then
vim.api.nvim_win_set_cursor(win, { 1, 0 })
vim.api.nvim_win_call(win, function()
vim.cmd([[noautocmd silent! normal! zt]])
end)
end
end)
end
end
---@param buf number buffer number
---@param opts? {offset: number, highlight: boolean, messages?: NoiceMessage[]} line number (1-indexed), if `highlight`, then only highlight
function View:render(buf, opts)
if not Config.is_running() then
return
end
opts = opts or {}
local linenr = opts.offset or 1
if self._opts.buf_options then
require("nui.utils")._.set_buf_options(buf, self._opts.buf_options)
end
if self._opts.lang and not vim.b[buf].ts_highlight then
if not pcall(vim.treesitter.start, buf, self._opts.lang) then
vim.bo[buf].syntax = self._opts.lang
end
end
vim.api.nvim_buf_clear_namespace(buf, Config.ns, linenr - 1, -1)
vim.b[buf].messages = {}
---@type number?
local win = vim.fn.bufwinid(buf)
if win == -1 then
win = nil
end
local cursor = win and vim.api.nvim_win_get_cursor(win)
if not opts.highlight then
vim.api.nvim_buf_set_lines(buf, linenr - 1, -1, false, {})
end
for _, m in ipairs(opts.messages or self._messages) do
if opts.highlight then
m:highlight(buf, Config.ns, linenr)
else
m:render(buf, Config.ns, linenr)
end
linenr = linenr + m:height()
end
if cursor then
-- restore cursor
pcall(vim.api.nvim_win_set_cursor, win, cursor)
end
end
return View