lazy.nvim/lua/lazy/view/float.lua

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local Config = require("lazy.core.config")
local ViewConfig = require("lazy.view.config")
---@class LazyViewOptions
---@field buf? number
---@field file? string
---@field margin? {top?:number, right?:number, bottom?:number, left?:number}
---@field win_opts LazyViewWinOpts
local defaults = {
win_opts = {},
}
---@class LazyFloat
---@field buf number
---@field win number
---@field opts LazyViewOptions
---@overload fun(opts?:LazyViewOptions):LazyFloat
local M = {}
setmetatable(M, {
__call = function(_, ...)
return M.new(...)
end,
})
---@param opts? LazyViewOptions
function M.new(opts)
local self = setmetatable({}, { __index = M })
return self:init(opts)
end
---@param opts? LazyViewOptions
function M:init(opts)
self.opts = vim.tbl_deep_extend("force", defaults, opts or {})
self:mount()
self:on_key(ViewConfig.keys.close, self.close)
self:on({ "BufDelete", "BufLeave", "BufHidden" }, self.close, { once = true })
return self
end
function M:layout()
local function size(max, value)
return value > 1 and math.min(value, max) or math.floor(max * value)
end
self.opts.win_opts.width = size(vim.o.columns, Config.options.ui.size.width)
self.opts.win_opts.height = size(vim.o.lines, Config.options.ui.size.height)
self.opts.win_opts.row = math.floor((vim.o.lines - self.opts.win_opts.height) / 2)
self.opts.win_opts.col = math.floor((vim.o.columns - self.opts.win_opts.width) / 2)
if self.opts.margin then
if self.opts.margin.top then
self.opts.win_opts.height = self.opts.win_opts.height - self.opts.margin.top
self.opts.win_opts.row = self.opts.win_opts.row + self.opts.margin.top
end
if self.opts.margin.right then
self.opts.win_opts.width = self.opts.win_opts.width - self.opts.margin.right
end
if self.opts.margin.bottom then
self.opts.win_opts.height = self.opts.win_opts.height - self.opts.margin.bottom
end
if self.opts.margin.left then
self.opts.win_opts.width = self.opts.win_opts.width - self.opts.margin.left
self.opts.win_opts.col = self.opts.win_opts.col + self.opts.margin.left
end
end
end
function M:mount()
if self.opts.file then
self.buf = vim.fn.bufadd(self.opts.file)
vim.fn.bufload(self.buf)
vim.bo[self.buf].modifiable = false
elseif self.opts.buf then
self.buf = self.opts.buf
else
self.buf = vim.api.nvim_create_buf(false, false)
end
---@class LazyViewWinOpts
---@field width number
---@field height number
---@field row number
---@field col number
local win_opts = {
relative = "editor",
style = "minimal",
border = Config.options.ui.border,
noautocmd = true,
zindex = 50,
}
self.opts.win_opts = vim.tbl_extend("force", win_opts, self.opts.win_opts)
if self.opts.win_opts.style == "" then
self.opts.win_opts.style = nil
end
self:layout()
self.win = vim.api.nvim_open_win(self.buf, true, self.opts.win_opts)
self:focus()
vim.bo[self.buf].buftype = "nofile"
if vim.bo[self.buf].filetype == "" then
vim.bo[self.buf].filetype = "lazy"
end
vim.bo[self.buf].bufhidden = "wipe"
vim.wo[self.win].conceallevel = 3
vim.wo[self.win].spell = false
vim.wo[self.win].wrap = true
vim.wo[self.win].winhighlight = "Normal:LazyNormal"
vim.api.nvim_create_autocmd("VimResized", {
callback = function()
if not self.win then
return true
end
self:layout()
local config = {}
for _, key in ipairs({ "relative", "width", "height", "col", "row" }) do
---@diagnostic disable-next-line: no-unknown
config[key] = self.opts.win_opts[key]
end
vim.api.nvim_win_set_config(self.win, config)
end,
})
end
---@param events string|string[]
---@param fn fun(self?):boolean?
---@param opts? table
function M:on(events, fn, opts)
if type(events) == "string" then
events = { events }
end
for _, e in ipairs(events) do
local event, pattern = e:match("(%w+) (%w+)")
event = event or e
vim.api.nvim_create_autocmd(
event,
vim.tbl_extend("force", {
pattern = pattern,
buffer = (not pattern) and self.buf or nil,
callback = function()
return fn(self)
end,
}, opts or {})
)
end
end
---@param key string
---@param fn fun(self?)
---@param desc? string
function M:on_key(key, fn, desc)
vim.keymap.set("n", key, function()
fn(self)
end, {
nowait = true,
buffer = self.buf,
desc = desc,
})
end
function M:close()
local buf = self.buf
local win = self.win
self.win = nil
self.buf = nil
vim.diagnostic.reset(Config.ns, buf)
vim.schedule(function()
if win and vim.api.nvim_win_is_valid(win) then
vim.api.nvim_win_close(win, true)
end
if buf and vim.api.nvim_buf_is_valid(buf) then
vim.api.nvim_buf_delete(buf, { force = true })
end
end)
end
function M:focus()
vim.api.nvim_set_current_win(self.win)
-- it seems that setting the current win doesn't work before VimEnter,
-- so do that then
if vim.v.vim_did_enter ~= 1 then
vim.api.nvim_create_autocmd("VimEnter", {
once = true,
callback = function()
if self.win and vim.api.nvim_win_is_valid(self.win) then
pcall(vim.api.nvim_set_current_win, self.win)
end
return true
end,
})
end
end
return M