/
winutils.lua
167 lines (133 loc) · 4.37 KB
/
winutils.lua
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local BUF_NAME = 'LuaTree'
local api = vim.api
local libformat = require 'lib/format'
local format = libformat.format_tree
local highlight = libformat.highlight_buffer
local stateutils = require 'lib/state'
local get_tree = stateutils.get_tree
local function get_buf()
local regex = '.*'..BUF_NAME..'$';
for _, win in pairs(api.nvim_list_wins()) do
local buf = api.nvim_win_get_buf(win)
local buf_name = api.nvim_buf_get_name(buf)
if string.match(buf_name, regex) ~= nil then return buf end
end
return nil
end
local function get_win()
local regex = '.*'..BUF_NAME..'$';
for _, win in pairs(api.nvim_list_wins()) do
local buf_name = api.nvim_buf_get_name(api.nvim_win_get_buf(win))
if string.match(buf_name, regex) ~= nil then return win end
end
return nil
end
local BUF_OPTIONS = {
'nowrap', 'sidescroll=5', 'nospell', 'nolist', 'nofoldenable',
'foldmethod=manual', 'foldcolumn=0', 'nonumber', 'norelativenumber',
'winfixwidth', 'winfixheight', 'noswapfile', 'splitbelow', 'noruler',
'noshowmode', 'noshowcmd'
}
local WIN_WIDTH = 30
local SIDE = 'H'
if api.nvim_call_function('exists', { 'g:lua_tree_width' }) == 1 then
WIN_WIDTH = api.nvim_get_var('lua_tree_width')
end
if api.nvim_call_function('exists', { 'g:lua_tree_side' }) == 1 then
if api.nvim_get_var('lua_tree_side') == 'right' then
SIDE = 'L'
end
end
local function open()
local options = {
bufhidden = 'wipe';
buftype = 'nowrite';
modifiable = false;
}
local buf = api.nvim_create_buf(false, true)
api.nvim_buf_set_name(buf, BUF_NAME)
for opt, val in pairs(options) do
api.nvim_buf_set_option(buf, opt, val)
end
api.nvim_command('vnew')
api.nvim_command('wincmd '..SIDE)
api.nvim_command('vertical resize '..WIN_WIDTH)
api.nvim_win_set_buf(0, buf)
api.nvim_command('setlocal winhighlight=EndOfBuffer:LuaTreeEndOfBuffer')
for _, opt in pairs(BUF_OPTIONS) do
api.nvim_command('setlocal '..opt)
end
if SIDE == 'L' then
api.nvim_command('setlocal nosplitright')
else
api.nvim_command('setlocal splitright')
end
end
local function replace_tree()
local win = get_win()
if not win then return end
local tree_position = api.nvim_win_get_position(win)
local win_width = api.nvim_win_get_width(win)
if win_width == WIN_WIDTH then
if SIDE == 'H' and tree_position[2] == 0 then return end
local columns = api.nvim_get_option('columns')
if SIDE == 'L' and tree_position[2] ~= columns - win_width then return end
end
local current_win = api.nvim_get_current_win()
api.nvim_set_current_win(win)
api.nvim_command('wincmd '..SIDE)
api.nvim_command('vertical resize '..WIN_WIDTH)
api.nvim_set_current_win(current_win)
end
local function close()
local win = get_win()
if not win then return end
api.nvim_win_close(win, true)
end
local function update_view(update_cursor)
local buf = get_buf();
if not buf then return end
local cursor = api.nvim_win_get_cursor(0)
local tree = get_tree()
api.nvim_buf_set_option(buf, 'modifiable', true)
api.nvim_buf_set_lines(buf, 0, -1, false, format(tree))
highlight(buf, tree)
api.nvim_buf_set_option(buf, 'modifiable', false)
if update_cursor == true then
api.nvim_win_set_cursor(0, cursor)
end
end
local function set_mappings()
local buf = get_buf()
if not buf then return end
local mappings = {
['<CR>'] = 'open_file("edit")';
['<2-LeftMouse>'] = 'open_file("edit")';
['<2-RightMouse>'] = 'open_file("chdir")';
['<C-v>'] = 'open_file("vsplit")';
['<C-x>'] = 'open_file("split")';
['<C-t>'] = 'open_file("tabnew")';
['.'] = 'open_file("chdir")';
a = 'edit_file("create")';
d = 'edit_file("remove")';
r = 'edit_file("rename")';
}
for k,v in pairs(mappings) do
api.nvim_buf_set_keymap(buf, 'n', k, ':lua require"tree".'..v..'<cr>', {
nowait = true, noremap = true, silent = true
})
end
end
local function is_win_open()
return get_buf() ~= nil
end
return {
open = open;
close = close;
is_win_open = is_win_open;
update_view = update_view;
get_buf = get_buf;
get_win = get_win;
set_mappings = set_mappings;
replace_tree = replace_tree;
}