67 lines
2.4 KiB
Lua
67 lines
2.4 KiB
Lua
local vim = vim
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local config = require('symbols-outline.config')
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local symbol_kinds = require('symbols-outline.symbols').kinds
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local M = {}
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M.markers = {
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bottom = "└",
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middle = "├",
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vertical = "│",
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horizontal = "─"
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}
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M.hovered_hl_ns = vim.api.nvim_create_namespace("hovered_item")
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function M.clear_hover_highlight(bufnr)
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vim.api.nvim_buf_clear_namespace(bufnr, M.hovered_hl_ns, 0, -1)
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end
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function M.add_hover_highlight(bufnr, line, col_start)
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vim.api.nvim_buf_add_highlight(bufnr, M.hovered_hl_ns, "FocusedSymbol",
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line, col_start, -1)
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end
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local function highlight_text(name, text, hl_group)
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vim.cmd(string.format("syn match %s /%s/", name, text))
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vim.cmd(string.format("hi def link %s %s", name, hl_group))
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end
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function M.setup_highlights()
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-- Setup the FocusedSymbol highlight group if it hasnt been done already by
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-- a theme or manually set
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if vim.fn.hlexists('FocusedSymbol') == 0 then
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vim.cmd 'hi FocusedSymbol term=italic,bold cterm=italic ctermbg=yellow ctermfg=darkblue gui=bold,italic guibg=yellow guifg=darkblue'
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end
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-- Some colorschemes do some funky things with the comment highlight, most
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-- notably making them italic, which messes up the outline connector. Fix
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-- this by copying the foreground color from the comment hl into a new
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-- highlight.
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local comment_fg_gui = vim.fn.synIDattr(vim.fn.synIDtrans(vim.fn.hlID('Comment')), 'fg', 'gui')
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local comment_fg_cterm = vim.fn.synIDattr(vim.fn.synIDtrans(vim.fn.hlID('Comment')), 'fg',
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'cterm')
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if vim.fn.hlexists('SymbolsOutlineConnector') == 0 then
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vim.cmd(string.format('hi SymbolsOutlineConnector ctermfg=%s guifg=%s',
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comment_fg_cterm, comment_fg_gui))
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end
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local symbols = config.options.symbols
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-- markers
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highlight_text("marker_middle", M.markers.middle, "SymbolsOutlineConnector")
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highlight_text("marker_vertical", M.markers.vertical,
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"SymbolsOutlineConnector")
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highlight_text("markers_horizontal", M.markers.horizontal,
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"SymbolsOutlineConnector")
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highlight_text("markers_bottom", M.markers.bottom, "SymbolsOutlineConnector")
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for _, value in ipairs(symbol_kinds) do
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local symbol = symbols[value]
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highlight_text(value, symbol.icon, symbol.hl)
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end
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end
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return M
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