ui.vim

let s:V = vital#of("vital")
let s:Buffer  = s:V.import("Coaster.Buffer")
let s:cmdline  = s:V.import("Over.Commandline")

function! Start()
	let cmdline = s:cmdline.make_standard(":")
	let cmdline.buffer = s:Buffer.open("botright new")
	setlocal bufhidden=hide buftype=nofile noswapfile nobuflisted nonumber cursorline

	let cmdline.list = glob("**/*", 1, 1)
	let cmdline.buffer.setline(1, cmdline.list, 1)

	function! cmdline.on_char_pre(...)
		if self.is_input("\<A-n>")
			silent! normal! j
			call self.setchar("")
		endif
		if self.is_input("\<A-p>")
			silent! normal! k
			call self.setchar("")
		endif
	endfunction

	function! cmdline.on_char(...)
		let pat = self.getline()
		let list = pat == "" ? self.list : filter(deepcopy(self.list), { -> v:val =~ pat })
		let pos = getcurpos()
		call self.buffer.clear(1)
		call self.buffer.setline(1, list, 1)
		call setpos(".", pos)
	endfunction
	
	function! cmdline.on_execute(...)
		echom getline(".")
	endfunction

	function! cmdline.on_leave(...)
		call self.buffer.close()
	endfunction

	call cmdline.start()
endfunction