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local Util = require("which-key.util")
---@class wk.Win
---@field win? number
---@field buf? number
---@field opts wk.Win.opts
local M = {}
M.__index = M
---@class wk.Win.opts
local override = {
relative = "editor",
style = "minimal",
focusable = false,
noautocmd = true,
wo = {
scrolloff = 0,
foldenable = false,
winhighlight = "Normal:WhichKeyNormal,FloatBorder:WhichKeyBorder,FloatTitle:WhichKeyTitle",
winbar = "",
statusline = "",
wrap = false,
},
bo = {
buftype = "nofile",
bufhidden = "wipe",
filetype = "wk",
},
}
---@type wk.Win.opts
local defaults = { col = 0, row = math.huge, zindex = 1000 }
---@param opts? wk.Win.opts
function M.defaults(opts)
return vim.tbl_deep_extend("force", {}, defaults, opts or {}, override)
end
---@param opts? wk.Win.opts
function M.new(opts)
local self = setmetatable({}, M)
self.opts = M.defaults(opts)
return self
end
function M:valid()
return self.buf and vim.api.nvim_buf_is_valid(self.buf) and self.win and vim.api.nvim_win_is_valid(self.win) or false
end
function M:hide()
if not (self.buf or self.win) then
return
end
---@type number?, number?
local buf, win = self.buf, self.win
self.buf, self.win = nil, nil
local function try_close()
pcall(vim.api.nvim_win_close, win, true)
pcall(vim.api.nvim_buf_delete, buf, { force = true })
win = win and vim.api.nvim_win_is_valid(win) and win or nil
buf = buf and vim.api.nvim_buf_is_valid(buf) and buf or nil
if win or buf then
vim.schedule(try_close)
end
end
try_close()
end
---@param opts? wk.Win.opts
function M:show(opts)
if opts then
self.opts = vim.tbl_deep_extend("force", self.opts, opts)
end
local win_opts = vim.deepcopy(self.opts)
win_opts.wo = nil
win_opts.bo = nil
win_opts.padding = nil
win_opts.no_overlap = nil
if vim.fn.has("nvim-0.10") == 0 then
win_opts.footer = nil
end
if self:valid() then
win_opts.noautocmd = nil
return vim.api.nvim_win_set_config(self.win, win_opts)
end
local ei = vim.go.eventignore
vim.go.eventignore = "all"
self.buf = vim.api.nvim_create_buf(false, true)
Util.bo(self.buf, self.opts.bo or {})
self.win = vim.api.nvim_open_win(self.buf, false, win_opts)
Util.wo(self.win, self.opts.wo or {})
vim.go.eventignore = ei
end
---@param up boolean
function M:scroll(up)
if not self:valid() then
return
end
local height = vim.api.nvim_win_get_height(self.win)
local delta = math.ceil((up and -1 or 1) * height / 2)
local view = vim.api.nvim_win_call(self.win, vim.fn.winsaveview)
local top = view.topline ---@type number
top = top + delta
top = math.max(top, 1)
top = math.min(top, vim.api.nvim_buf_line_count(self.buf) - height + 1)
vim.api.nvim_win_call(self.win, function()
vim.fn.winrestview({ topline = top, lnum = top })
end)
end
return M
|
