52 lines
1.3 KiB
Lua
52 lines
1.3 KiB
Lua
local M = {}
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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(
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bufnr,
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M.hovered_hl_ns,
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'OutlineCurrent',
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line,
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col_start,
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-1
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)
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end
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function M.setup_highlights()
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-- Setup the OutlineCurrent highlight group if it hasn't been done already by
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-- a theme or manually set
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if vim.fn.hlexists 'OutlineCurrent' == 0 then
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local cline_hl = vim.api.nvim_get_hl_by_name('CursorLine', true)
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local string_hl = vim.api.nvim_get_hl_by_name('String', true)
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vim.api.nvim_set_hl(
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0,
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'OutlineCurrent',
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{ bg = cline_hl.background, fg = string_hl.foreground }
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)
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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(
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vim.fn.synIDtrans(vim.fn.hlID 'Comment'),
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'fg',
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'gui'
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)
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if vim.fn.hlexists 'OutlineGuides' == 0 then
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vim.cmd(
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string.format('hi OutlineGuides guifg=%s', comment_fg_gui)
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)
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end
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end
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return M
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