Rewrote backlight manager

backlight/arc_widget.lua

@@ -0,0 +1,99 @@
+local P = {}
+
+function P:set_value(value)
+	-- Set widget value. (0 - 100)
+	self.arc.value = value
+
+	--[[
+	if     value >  90 then self.icon.image = beautiful.icons.brightness.i
+	elseif value >  80 then self.icon.image = beautiful.icons.brightness.h
+	elseif value >  70 then self.icon.image = beautiful.icons.brightness.g
+	elseif value >  60 then self.icon.image = beautiful.icons.brightness.f
+	elseif value >  50 then self.icon.image = beautiful.icons.brightness.e
+	elseif value >  40 then self.icon.image = beautiful.icons.brightness.d
+	elseif value >  30 then self.icon.image = beautiful.icons.brightness.c
+	elseif value >  20 then self.icon.image = beautiful.icons.brightness.b
+	elseif value <= 10 then self.icon.image = beautiful.icons.brightness.a
+	end
+	--]]
+end
+
+function P:set_state(state)
+	return
+end
+
+function P:set_tooltip(text)
+	-- Set widget value. (0 - 100)
+	self.tooltip.text = text
+end
+
+function P:new()
+	widget = {}
+	setmetatable(widget, self)
+	self.__index = self
+
+	widget.icon = wibox.widget {
+		id = "icon",
+		image = beautiful.icons.brightness.i,
+		resize = true,
+		widget = wibox.widget.imagebox,
+	}
+
+	widget.arc = wibox.widget {
+		{
+			widget.icon,
+			top = beautiful.dpi(1),
+			bottom = beautiful.dpi(1),
+			layout = wibox.container.margin,
+		},
+		max_value = 100,
+		thickness = beautiful.dpi(4),
+		start_angle = 4.71238898, -- 2pi*3/4
+		--forced_height = beautiful.dpi(16),
+		--forced_width = beautiful.dpi(16),
+		colors = {"#27D4CC", "#00446B"},
+		bg = "#FFFFFF30",
+		paddings = beautiful.dpi(2),
+		widget = wibox.container.arcchart
+	}
+
+	widget.widget = wibox.widget {
+		{
+			{   -- Right space
+				widget = wibox.widget.separator,
+				color = beautiful.color.transparent,
+				forced_width = beautiful.dpi(3)
+			},
+			{
+				widget.arc,
+				top = beautiful.dpi(2),
+				bottom = beautiful.dpi(2),
+				layout = wibox.container.margin,
+			},
+			{   -- Left space
+				widget = wibox.widget.separator,
+				color = beautiful.color.transparent,
+				forced_width = beautiful.dpi(3)
+			},
+			layout = wibox.layout.align.horizontal,
+		},
+		layout = wibox.container.background,
+	}
+
+	widget.tooltip = awful.tooltip {
+		objects = { widget.widget },
+		text = ""
+	}
+
+	widget.widget:connect_signal("mouse::enter", function(result)
+		widget.widget.bg = beautiful.color.bar.hover_bg
+	end)
+
+	widget.widget:connect_signal("mouse::leave", function(result)
+		widget.widget.bg = beautiful.color.transparent
+	end)
+
+	return widget
+end
+
+return P

backlight/backlight.lua

@@ -0,0 +1,133 @@
+local widget_types = {
+	arc = require("backlight/arc_widget")
+}
+
+local P = {}
+
+
+---
+-- Internal methods
+---
+function P:_get_status()
+	awful.spawn.easy_async(
+		script_dir .. "backlight get",
+		function(stdout, stderr, exitreason, exitcode)
+			self._ready = true
+			self.brightness = tonumber(stdout)
+			self:_update_widget()
+		end
+	)
+	return true
+end
+
+
+
+function P:_update_widget()
+	if (not self._ready) then
+		self.widget:set_state("error")
+		self.widget:set_value(self.max_value);
+		self.widget:set_tooltip("Backlight error");
+		return
+	end
+
+	self.widget:set_value(self.brightness);
+	self.widget:set_tooltip("Backlight " .. self.brightness .. "u");
+	self.widget:set_state("ready")
+end
+
+---
+-- Simple actions
+---
+function P:backlight_up()
+	if (not self._ready) or (self.brightness >= self.max_value) then
+		return
+	end
+
+	awful.spawn(script_dir .. "backlight up 5", false)
+	self.brightness = self.brightness + 5
+	if self.brightness > self.max_value then
+		self.brightness = self.max_value
+	end
+	self:_update_widget()
+end
+
+function P:backlight_down()
+	if (not self._ready) or (self.brightness <= self.min_value) then
+		return
+	end
+
+	awful.spawn(script_dir .. "backlight down 5", false)
+	self.brightness = self.brightness - 5
+	if self.brightness < self.min_value then
+		self.brightness = self.min_value
+	end
+	self:_update_widget()
+end
+
+function P:backlight_set(value)
+	if (not self._ready) then
+		return
+	end
+
+	if (value < self.min_value) then
+		value = self.min_value
+	end
+
+	if (value > self.max_value) then
+		value = self.max_value
+	end
+
+	awful.spawn(script_dir .. "backlight set " .. value, false)
+	self.brightness = value
+	self:_update_widget()
+end
+
+
+---
+-- Create new volume_interface
+---
+function P:new(args)
+	-- Arguments
+	b = {
+		update_interval = args.update_interal or 5,
+		min_value = args.min_value or 0,
+		max_value = args.max_value or 100,
+		widget_type = args.widget_type or "arc",
+
+
+		_ready = false, -- is all the information in this class up-to-date?
+		-- if this is false, ui will show an error and most methods will
+		-- do nothing. Updated in _get_status()
+	}
+
+	b.widget = widget_types[b.widget_type]:new()
+
+	b.widget.widget:connect_signal("button::press",
+		function(_, _, _, button, mods)
+			-- Scroll up
+			if (button == 4) then
+				b:backlight_up()
+			-- Scroll down
+			elseif (button == 5) then
+				b:backlight_down()
+			end
+		end
+	)
+
+	setmetatable(b, self)
+	self.__index = self
+
+	-- This timer keeps mute and volume status up-to-date.
+	b.timer = gears.timer {
+		timeout   = b.update_interval,
+		call_now  = true,
+		autostart = true,
+		callback  = function()
+			b:_get_status()
+		end
+	}
+
+	return b
+end
+
+return P

backlight/init.lua

@@ -0,0 +1,7 @@
+local P = require("backlight/backlight")
+
+local F = function(args)
+	return P:new(args)
+end
+
+return F