feat: new component battery

lua/sttusline/api.lua

@@ -310,13 +310,13 @@ end
 
 M.start_timer = function(opts)
 	if glob_timer == nil then glob_timer = vim.loop.new_timer() end
-	glob_timer:start(1000, 1000, vim.schedule_wrap(function() M.run(opts) end))
+	glob_timer:start(0, 1000, vim.schedule_wrap(function() M.run(opts) end))
 end
 
 M.start_sub_timer = function(opts, component, index, timing)
 	if comp_timers[index] == nil then comp_timers[index] = vim.loop.new_timer() end
 	comp_timers[index]:start(
-		timing,
+		0,
 		timing,
 		vim.schedule_wrap(function()
 			if statusline_hidden then return end

lua/sttusline/components/battery.lua

@@ -0,0 +1,96 @@
+local fn = vim.fn
+local colors = require("sttusline.utils.color")
+
+return {
+	name = "battery",
+	timing = true,
+	configs = {
+		icons = {
+			charging = {
+				"󰢟",
+				"󰢜",
+				"󰂆",
+				"󰂇",
+				"󰂈",
+				"󰢝",
+				"󰂉",
+				"󰢞",
+				"󰂊",
+				"󰂋",
+				"󰂅",
+			},
+			discharging = {
+				"󰂎",
+				"󰁺",
+				"󰁻",
+				"󰁼",
+				"󰁽",
+				"󰁾",
+				"󰁿",
+				"󰂀",
+				"󰂁",
+				"󰂂",
+				"󰁹",
+			},
+		},
+	},
+	colors = {
+		fg = colors.green,
+	},
+	space = function()
+		local bat = fn.system("ls /sys/class/power_supply/ | grep BAT"):match("(.-)%s*$") or ""
+		local bat_dir = "/sys/class/power_supply/" .. bat .. "/"
+
+		local read_battery_file = function(filename)
+			local f = io.open(bat_dir .. filename, "r")
+			if not f then return "" end
+			local content = f:read("*all")
+			f:close()
+			return content:match("(.-)%s*$")
+		end
+		return {
+			get_status = function() return read_battery_file("status") end,
+			get_capacity = function() return read_battery_file("capacity") end,
+			curr_charging_index = 0,
+		}
+	end,
+	update = function(configs, space)
+		local status = space.get_status()
+		local capacity = space.get_capacity()
+		local icon_index = math.floor(capacity / 10) + 1
+		local battery_color = icon_index > 8 and colors.green
+			or icon_index > 4 and colors.yellow
+			or colors.red
+
+		if status == "Charging" then
+			space.curr_charging_index = space.curr_charging_index == 0 and icon_index
+				or space.curr_charging_index < #configs.icons.charging and space.curr_charging_index + 1
+				or icon_index
+
+			return {
+				{
+					configs.icons.charging[space.curr_charging_index] .. " " .. capacity .. "%%",
+					{ fg = battery_color },
+				},
+			}
+		elseif status == "Discharging" then
+			space.curr_charging_index = 0
+			return {
+				{
+					configs.icons.discharging[icon_index] .. " " .. capacity .. "%%",
+					{ fg = battery_color },
+				},
+			}
+		elseif status == "Full" then
+			space.curr_charging_index = 0
+			return "󰂄 " .. capacity .. "%%"
+		elseif status == "Not charging" then
+			space.curr_charging_index = 0
+			return "󰁹 " .. capacity .. "%%"
+		else
+			space.curr_charging_index = 0
+			return "Battery: " .. capacity .. "%%"
+		end
+	end,
+	condition = function() return vim.loop.os_uname().sysname == "Linux" end,
+}