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local M = {}
M.next_char = function()
vim.cmd("redraw!")
return vim.fn.nr2char(vim.fn.getchar())
end
M.new_panel = function(buf, row, col, width, height)
local w = vim.api.nvim_open_win(buf, false, {
relative = 'win',
row = row,
col = col,
width = width,
height = height,
focusable = true,
style = 'minimal',
fixed = true
})
vim.api.nvim_win_set_option(w, "winhighlight", "Normal:WarpNormal")
return w
end
M.open_horiz = function()
local current_win = vim.api.nvim_get_current_win()
local curpos = vim.api.nvim_win_get_cursor(0)
local topline = vim.fn.line('w0')
local width_of_garbage = vim.fn.getwininfo(current_win)[1].textoff
local width = vim.api.nvim_win_get_width(current_win) - width_of_garbage
local horiz_bufnr = vim.api.nvim_create_buf(0, 1)
local line_at = vim.fn.getline(curpos[1])
local max_width = math.min(
width, #line_at + 1 + (vim.o.virtualedit == 'onemore' and 1 or 0))
if vim.o.virtualedit == 'all' then
max_width = width
end
return {
buf = horiz_bufnr,
panel = M.new_panel(
horiz_bufnr,
curpos[1] - topline + 1,
width_of_garbage - 1,
max_width + 2, 1)
}
end
M.wrap_col_selector = function(strat)
local cleanup = function(win)
vim.api.nvim_buf_delete(vim.api.nvim_win_get_buf(win), {force = true})
end
local w
return {
run = function()
local data = M.open_horiz()
w = data.panel
local f = function ()
local disp = strat.display()
if disp then
vim.api.nvim_buf_set_lines(data.buf, 0, -1, 0, {' ' .. disp})
local ch = M.next_char()
while ch ~= '\x1b' and strat.on_char(ch) do
vim.api.nvim_buf_set_lines(data.buf, 0, -1, 0,
{' ' .. strat.display()})
ch = M.next_char()
end
end
end
f ()
cleanup(w)
end
}
end
M.cleanup = function(win)
if win then
vim.api.nvim_buf_delete(vim.api.nvim_win_get_buf(win), {force = true})
end
end
return M
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