67 lines
2.0 KiB
Lua
67 lines
2.0 KiB
Lua
-- Copyright (c) 2020-2021 shadmansaleh
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-- MIT license, see LICENSE for more details.
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local M = {}
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-- Note for now only works for termguicolors scope can be background or foreground
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function M.extract_highlight_colors(color_group, scope)
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if vim.fn.hlexists(color_group) == 0 then return nil end
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local gui_colors = vim.api.nvim_get_hl_by_name(color_group, true)
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local cterm_colors = vim.api.nvim_get_hl_by_name(color_group, false)
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local color = {
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ctermfg = cterm_colors.foreground,
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ctermbg = cterm_colors.background
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}
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if gui_colors.background then
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color.guibg = string.format('#%06x', gui_colors.background)
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gui_colors.background = nil
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end
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if gui_colors.foreground then
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color.guifg = string.format('#%06x', gui_colors.foreground)
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gui_colors.foreground = nil
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end
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cterm_colors.background = nil
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cterm_colors.foreground = nil
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color = vim.tbl_extend('keep', color, gui_colors, cterm_colors)
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if scope then return color[scope] end
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return color
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end
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-- table to store the highlight names created by lualine
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M.loaded_highlights = {}
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-- sets loaded_highlights table
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function M.save_highlight(highlight_name, highlight_args)
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M.loaded_highlights[highlight_name] = highlight_args
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end
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function M.reload_highlights()
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local highlight = require('lualine.highlight')
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for _, highlight_args in pairs(M.loaded_highlights) do
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highlight.highlight(unpack(highlight_args))
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end
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end
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-- determine if an highlight exist and isn't cleared
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function M.highlight_exists(highlight_name)
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return M.loaded_highlights[highlight_name] and true or false
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end
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-- clears loaded_highlights table and highlights
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function M.clear_highlights()
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for highlight_name, _ in pairs(M.loaded_highlights) do
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vim.cmd('highlight clear ' .. highlight_name)
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M.loaded_highlights[highlight_name] = nil
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end
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end
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-- remove empty strings from list
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function M.list_shrink(list)
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local new_list = {}
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for i = 1, #list do
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if list[i] and #list[i] > 0 then table.insert(new_list, list[i]) end
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end
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return new_list
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end
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return M
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