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-- The following is extracted and modified from plenary.vnim by
-- TJ Devries. It is not a stable API, and is expected to change
--
local function apply_defaults(original, defaults)
if original == nil then
original = {}
end
original = vim.deepcopy(original)
for k, v in pairs(defaults) do
if original[k] == nil then
original[k] = v
end
end
return original
end
local win_float = {}
win_float.default_options = {
winblend = 15,
percentage = 0.9,
}
function win_float.default_opts(options)
options = apply_defaults(options, win_float.default_options)
local width = math.floor(vim.o.columns * options.percentage)
local height = math.floor(vim.o.lines * options.percentage)
local top = math.floor(((vim.o.lines - height) / 2) - 1)
local left = math.floor((vim.o.columns - width) / 2)
local opts = {
relative = 'editor',
row = top,
col = left,
width = width,
height = height,
style = 'minimal',
border = {
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
{ ' ', 'NormalFloat' },
},
}
return opts
end
--- Create window that takes up certain percentags of the current screen.
---
--- Works regardless of current buffers, tabs, splits, etc.
--@param col_range number | Table:
-- If number, then center the window taking up this percentage of the screen.
-- If table, first index should be start, second_index should be end
--@param row_range number | Table:
-- If number, then center the window taking up this percentage of the screen.
-- If table, first index should be start, second_index should be end
function win_float.percentage_range_window(col_range, row_range, options)
options = apply_defaults(options, win_float.default_options)
local win_opts = win_float.default_opts(options)
win_opts.relative = 'editor'
local height_percentage, row_start_percentage
if type(row_range) == 'number' then
assert(row_range <= 1)
assert(row_range > 0)
height_percentage = row_range
row_start_percentage = (1 - height_percentage) / 2
elseif type(row_range) == 'table' then
height_percentage = row_range[2] - row_range[1]
row_start_percentage = row_range[1]
else
error(string.format("Invalid type for 'row_range': %p", row_range))
end
win_opts.height = math.ceil(vim.o.lines * height_percentage)
win_opts.row = math.ceil(vim.o.lines * row_start_percentage)
local width_percentage, col_start_percentage
if type(col_range) == 'number' then
assert(col_range <= 1)
assert(col_range > 0)
width_percentage = col_range
col_start_percentage = (1 - width_percentage) / 2
elseif type(col_range) == 'table' then
width_percentage = col_range[2] - col_range[1]
col_start_percentage = col_range[1]
else
error(string.format("Invalid type for 'col_range': %p", col_range))
end
win_opts.col = math.floor(vim.o.columns * col_start_percentage)
win_opts.width = math.floor(vim.o.columns * width_percentage)
local bufnr = options.bufnr or vim.api.nvim_create_buf(false, true)
local win_id = vim.api.nvim_open_win(bufnr, true, win_opts)
vim.api.nvim_win_set_buf(win_id, bufnr)
vim.cmd 'setlocal nocursorcolumn ts=2 sw=2'
return {
bufnr = bufnr,
win_id = win_id,
}
end
return win_float
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