73 lines
1.9 KiB
Lua
73 lines
1.9 KiB
Lua
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-- TODO: make override-able
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vim.g.status_line_max_length = 5
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-- TODO: only update this portion when needed instead of every render?
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function StatusLineBufferByNum(bufnum)
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local bufinfo = vim.fn.getbufinfo(bufnum)
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local prefix = ' %#InactiveBuffer#'
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local suffix = '%* '
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if bufinfo.changed then
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prefix = '%#DirtyBuffer# '
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suffix = ' %*'
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end
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if bufinfo.hidden == 0 and vim.fn.index(bufinfo.windows, vim.g.statusline_winid) >= 0 then
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prefix = '%#ActiveBuffer# '
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suffix = ' %*'
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if bufinfo.changed then
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prefix = '%#ActiveBuffer# *'
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suffix = ' %*'
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end
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end
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return prefix..vim.fn.fnamemodify(vim.fn.bufname(bufnum), ':t')..suffix
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end
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function StatusLineBuffers()
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-- TODO: mark buffers with unsaved changes
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local active_index = -1
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local acc = {}
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for _,bufnum in ipairs(vim.api.nvim_list_bufs()) do
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local bufinfo = vim.fn.getbufinfo(bufnum)
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if bufinfo.listed ~= 0 then
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local entry = StatusLineBufferByNum(bufnum)
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table.insert(acc, entry)
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if vim.fn.matchstr(entry, '^%#ActiveBuffer#') then
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active_index = vim.fn.index(acc, entry)
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end
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end
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end
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if active_index >= 0 then
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-- TODO: instead implement this as a wraparound carousel?
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local offset = vim.g.status_line_max_length / 2
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local min_buf_num = math.max(0, (active_index - offset))
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local max_buf_num = math.min(#acc - 1, min_buf_num + vim.g.status_line_max_length - 1)
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min_buf_num = math.max(0, max_buf_num - vim.g.status_line_max_length + 1)
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local buflist = table.concat({unpack(acc, min_buf_num, max_buf_num)}, '')
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local prefix = ''
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local suffix = ''
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if min_buf_num > 0 then
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prefix = '< '
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end
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if max_buf_num < (#acc - 1) then
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suffix = ' >'
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end
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return prefix..buflist..suffix
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else
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return table.concat(acc, '')
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end
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end
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function StatusLine()
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return StatusLineBuffers()..'%*%=%c,%l/%L (%p%%)'
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end
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return {
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setup=function()
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vim.o.statusline = ''..StatusLine()
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end
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}
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