Better widgets

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

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+# Spotify widget
+
+This widget displays currently playing song on [Spotify for Linux](https://www.spotify.com/download/linux/) client: ![screenshot](./spo-wid-1.png) and consists of two parts: 
+
+ - status icon which shows if music is currently playing
+ - artist and name of the current song playing
+
+## Controls
+
+ - left click - play/pause
+ - scroll up - play next song
+ - scroll down - play previous song
+
+## Dependencies
+
+Note that widget uses the Arc icon theme, so it should be [installed](https://github.com/horst3180/arc-icon-theme#installation) first under **/usr/share/icons/Arc/** folder.
+
+## Installation
+
+First you need to have spotify CLI installed. Here is how you can do it (except widget part): [pavelmakhov.com/2016/02/awesome-wm-spotify](http://pavelmakhov.com/2016/02/awesome-wm-spotify) 
+
+To use this widget clone repo under **~/.config/awesome/** and then add it in **rc.lua**:
+
+```lua
+local spotify_widget = require("awesome-wm-widgets.spotify-widget.spotify")
+...
+s.mytasklist, -- Middle widget
+	{ -- Right widgets
+    	layout = wibox.layout.fixed.horizontal,
+		...
+        spotify_widget,
+		...      
+```

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

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+-------------------------------------------------
+-- Spotify Widget for Awesome Window Manager
+-- Shows currently playing song on Spotify for Linux client
+-- More details could be found here:
+-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/spotify-widget
+
+-- @author Pavel Makhov
+-- @copyright 2018 Pavel Makhov
+-------------------------------------------------
+
+local awful = require("awful")
+local wibox = require("wibox")
+local watch = require("awful.widget.watch")
+
+local GET_SPOTIFY_STATUS_CMD = 'sp status'
+local GET_CURRENT_SONG_CMD = 'sp current-oneline'
+local PATH_TO_ICONS = "/usr/share/icons/Arc"
+
+local spotify_widget = wibox.widget {
+    {
+        id = "icon",
+        widget = wibox.widget.imagebox,
+    },
+    {
+        id = 'current_song',
+        widget = wibox.widget.textbox,
+        font = 'Play 9'
+    },
+    layout = wibox.layout.align.horizontal,
+    set_status = function(self, is_playing)
+        self.icon.image = PATH_TO_ICONS ..
+                (is_playing and "/actions/24/player_play.png"
+                            or "/actions/24/player_pause.png")
+    end,
+    set_text = function(self, path)
+        self.current_song.markup = path
+    end,
+}
+
+local update_widget_icon = function(widget, stdout, _, _, _)
+    stdout = string.gsub(stdout, "\n", "")
+    widget:set_status(stdout == 'Playing' and true or false)
+end
+
+local update_widget_text = function(widget, stdout, _, _, _)
+    if string.find(stdout, 'Error: Spotify is not running.') ~= nil then
+        widget:set_text('')
+        widget:set_visible(false)
+    else
+        widget:set_text(stdout)
+        widget:set_visible(true)
+    end
+end
+
+watch(GET_SPOTIFY_STATUS_CMD, 1, update_widget_icon, spotify_widget)
+watch(GET_CURRENT_SONG_CMD, 1, update_widget_text, spotify_widget)
+
+--- Adds mouse controls to the widget:
+--  - left click - play/pause
+--  - scroll up - play next song
+--  - scroll down - play previous song
+spotify_widget:connect_signal("button::press", function(_, _, _, button)
+    if (button == 1) then awful.spawn("sp play", false)      -- left click
+    elseif (button == 4) then awful.spawn("sp next", false)  -- scroll up
+    elseif (button == 5) then awful.spawn("sp prev", false)  -- scroll down
+    end
+    awful.spawn.easy_async(GET_SPOTIFY_STATUS_CMD, function(stdout, stderr, exitreason, exitcode)
+        update_widget_icon(spotify_widget, stdout, stderr, exitreason, exitcode)
+    end)
+end)
+
+return spotify_widget