Better widgets

awesome-wm-widgets/volumebar-widget/README.md

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+# Volumebar widget
+
+Almost the same as volume widget, but more minimalistic:
+
+![screenshot](out.gif)
+
+Supports 
+ - scroll up - increase volume, 
+ - scroll down - decrease volume, 
+ - left click - mute/unmute.
+ 
+ ## Installation
+ 
+ Clone repo, include widget and use it in **rc.lua**:
+ 
+ ```lua
+ require("volumebar")
+...
+s.mytasklist, -- Middle widget
+	{ -- Right widgets
+    	layout = wibox.layout.fixed.horizontal,
+		...
+		volumebar_widget,
+		...      
+ ```
+
+## Troubleshooting
+
+If the bar is not showing up, try to decrease top or bottom margin - widget uses hardcoded margins for vertical alignment, so if your wibox is too small then bar is simply hidden by the margins.

awesome-wm-widgets/volumebar-widget/volumebar.lua

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+-------------------------------------------------
+-- Volume Bar Widget for Awesome Window Manager
+-- Shows the current volume level
+-- More details could be found here:
+-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/volumebar-widget
+
+-- @author Pavel Makhov
+-- @copyright 2018 Pavel Makhov
+-------------------------------------------------
+
+local awful = require("awful")
+local gears = require("gears")
+local spawn = require("awful.spawn")
+local watch = require("awful.widget.watch")
+local wibox = require("wibox")
+
+local GET_VOLUME_CMD = 'amixer sget Master'
+local INC_VOLUME_CMD = 'amixer sset Master 5%+'
+local DEC_VOLUME_CMD = 'amixer sset Master 5%-'
+local TOG_VOLUME_CMD = 'amixer sset Master toggle'
+
+local bar_color = "#74aeab"
+local mute_color = "#ff0000"
+local background_color = "#3a3a3a"
+
+local volumebar_widget = wibox.widget {
+    max_value = 1,
+    forced_width = 50,
+    paddings = 0,
+    border_width = 0.5,
+    color = bar_color,
+    background_color = background_color,
+    shape = gears.shape.bar,
+    clip = true,
+    margins       = {
+        top = 8,
+        bottom = 8,
+    },
+    widget = wibox.widget.progressbar
+}
+
+local update_graphic = function(widget, stdout, _, _, _)
+    local mute = string.match(stdout, "%[(o%D%D?)%]")
+    local volume = string.match(stdout, "(%d?%d?%d)%%")
+    volume = tonumber(string.format("% 3d", volume))
+
+    widget.value = volume / 100;
+    widget.color = mute == "off" and mute_color
+                                  or bar_color
+
+end
+
+volumebar_widget:connect_signal("button::press", function(_,_,_,button)
+    if (button == 4)     then awful.spawn(INC_VOLUME_CMD)
+    elseif (button == 5) then awful.spawn(DEC_VOLUME_CMD)
+    elseif (button == 1) then awful.spawn(TOG_VOLUME_CMD)
+    end
+
+    spawn.easy_async(GET_VOLUME_CMD, function(stdout, stderr, exitreason, exitcode)
+        update_graphic(volumebar_widget, stdout, stderr, exitreason, exitcode)
+    end)
+end)
+
+watch(GET_VOLUME_CMD, 1, update_graphic, volumebar_widget)
+
+return volumebar_widget