refactor(nvim): rewrite the highlight and extended marks plugins

1 files changed, 70 insertions, 0 deletions

diff --git a/.config/nvim/plugin/50-highlight.lua b/.config/nvim/plugin/50-highlight.lua
new file mode 100644
index 0000000..1daba82
--- /dev/null
+++ b/.config/nvim/plugin/50-highlight.lua
@@ -0,0 +1,70 @@
+--
+-- 50-highlight.lua
+--
+-- * Creates a function to adjust highlight groups for the solarized colorscheme. It also sets popup
+--   menu width and border style.
+-- * Creates an autocommand to trigger this function when the background or color scheme changes.
+-- * Sets the default colorscheme (solarized) and background (dark).
+--
+-- User commands:
+--   `ColorsBgToggle`: toggle light/dark background
+--
+
+-- Adjust highlights (for the solarized theme) to fit my personal tastes.
+local function adjust_solarized_highlights()
+	local colors = { blue = "#268bd2", yellow = "#b58900" }
+	-- Window bar style
+	vim.api.nvim_set_hl(0, "WinBarCwd", { fg = colors.blue, italic = true })
+	vim.api.nvim_set_hl(0, "WinBarFilePath", { italic = true })
+	-- Matching delimiter
+	vim.api.nvim_set_hl(0, "MatchParen", { link = "CurSearch" })
+	-- Floating windows and popup menu windows follow the editor background, their borders too so
+	-- that the popup menu border draws a clean separation.
+	vim.opt.pumborder = "rounded"
+	vim.opt.pumwidth = 25 -- Minimum popup menu width
+	vim.api.nvim_set_hl(0, "NormalFloat", { link = "Normal" })
+	local normal_bg = vim.api.nvim_get_hl(0, { name = "Normal", link = false }).bg
+	vim.api.nvim_set_hl(0, "FloatBorder", { bg = normal_bg, update = true })
+	vim.api.nvim_set_hl(0, "Pmenu", { bg = normal_bg, update = true })
+	vim.api.nvim_set_hl(0, "PmenuSbar", { bg = normal_bg, update = true })
+	-- Currently selected tabpage
+	vim.api.nvim_set_hl(0, "TabLineSel", { fg = colors.yellow, bold = true, update = true })
+	-- Todo hl group
+	vim.api.nvim_set_hl(0, "Todo", { bg = "Yellow", fg = "Black", bold = true })
+end
+
+-- Adjust highlights to fit my personal tastes.
+local function adjust_highlights()
+	if vim.g.colors_name == "solarized" then
+		adjust_solarized_highlights()
+	end
+end
+
+local function toggle_theme()
+	vim.opt.background = vim.o.background == "light" and "dark" or "light"
+	vim.notify("Color theme set to " .. vim.o.background)
+end
+
+----------------------------------------------------------------------------------------------------
+
+vim.api.nvim_create_autocmd("ColorScheme", {
+	desc = "Adjust custom highlights",
+	group = vim.g.dotfiles.augroup,
+	callback = adjust_highlights,
+})
+
+vim.api.nvim_create_autocmd("OptionSet", {
+	desc = "Adjust custom highlights on theme change",
+	pattern = "background",
+	group = vim.g.dotfiles.augroup,
+	callback = adjust_highlights,
+})
+
+vim.api.nvim_create_user_command(
+	"ColorsBgToggle",
+	toggle_theme,
+	{ desc = "Toggle light/dark theme" }
+)
+
+vim.cmd.colorscheme("solarized")
+vim.opt.background = "dark"