big update

README.md

@@ -23,6 +23,11 @@ The installation process is not much different from the previous iteration, exce
 3. Install AwesomeWM (version 4.3 as of right now)
 4. (Optional) Read additional installation steps in `extra/README.md`
 
+## Keybindings and user guide
+- press win+s
+- read extra/README.md
+- enjoy
+
 ## Roadmap
 
 - [x] Port widgets from original config to AWMTK2

desktop.conf

@@ -26,11 +26,20 @@ modkey+b            = ":client.below"
 modkey+f            = ":client.fullscreen"
 modkey+n            = ":client.minimize"
 modkey+m            = ":client.maximize"
+modkey+p            = ":client.pin"
+modkey+y            = ":client.toggle_titlebars"
 
 # Widget keys
 modkey+r            = ":dismal.run"
 modkey+s            = ":help.show"
-
+Control+XF86AudioRaiseVolume   = ":client.volume_up"
+Control+XF86AudioLowerVolume   = ":client.volume_down"
+Control+XF86AudioMute          = ":client.volume_mute"
+XF86MonBrightnessUp           = ":battery.brightness_up"
+XF86MonBrightnessDown         = ":battery.brightness_down"
+XF86AudioPlay                 = ":mpc.play"
+XF86AudioPrev                 = ":mpc.prev"
+XF86AudioNext                 = ":mpc.next"
 # Custom keys
 Print               = "flameshot gui"
 Shift+Print         = "flameshot launcher"

libs/asckey.lua

@@ -12,6 +12,12 @@ local asckey = {
 }
 local awful = require("awful")
 
+asckey.set_keymap = function(keymap)
+    for k,v in pairs(keymap) do
+        asckey.keymap[v] = k
+    end
+end
+
 asckey.get_keycomb = function(name)
     local modifiers = {}
     name = name:gsub("[^%s%+]+%+",function(v)

libs/awmtk2.lua

@@ -162,6 +162,9 @@ awmtk.proto_style.center = awmtk.create_delta("center", {
 awmtk.proto_style.slider = awmtk.create_delta("slider", {
     margins = 1
 }, awmtk.proto_style,awmtk.proto_style.base)
+
+awmtk.proto_style.checkbox = awmtk.create_delta("checkbox", {
+}, awmtk.proto_style,awmtk.proto_style.base)
 -- }}}  
 
 -- {{{ Generic templates 
@@ -407,6 +410,19 @@ awmtk.proto_templates = {
                 widget = wibox.widget.slider
             },args or {})
         end
+    end,
+
+    checkbox = function(style)
+        return function(args)
+            return awmtk.merge({
+                color = style.checkbox.bg_focus,
+                padding = 2,
+                shape = style.checkbox.shape,
+                border_width = style.checkbox.shape_border_width,
+                bg = style.checkbox.shape_border_color,
+                widget = wibox.widget.checkbox
+            },args or {})
+        end
     end
 }
 

libs/parser_test.lua

@@ -7,6 +7,15 @@
 --  You should have received a copy of the GNU General Public License along with Reno desktop. If not, see <https://www.gnu.org/licenses/>. 
 
 local parsers = require("parsers")
+function rprint(t,ident)
+    ident = ident or 0
+    for k,v in pairs(t) do
+        print((" "):rep(ident)..k,v)
+        if type(v) == "table" then
+            rprint(v,ident+4)
+        end
+    end
+end
 -- Conf parser
 local data = [[
 # Global variables
@@ -45,3 +54,163 @@ for k,v in pairs(parsers.conf(data)) do
         print(kk,vv)
     end
 end
+
+-- yaml-like (pactl) parser
+data = [[
+Sink Input #75
+	Driver: PipeWire
+	Owner Module: n/a
+	Client: 58
+	Sink: 46
+	Sample Specification: float32le 2ch 44100Hz
+	Channel Map: front-left,front-right
+	Format: pcm, format.sample_format = "\"float32le\""  format.rate = "44100"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
+	Corked: no
+	Mute: no
+	Volume: front-left: 38326 /  58% / -13.98 dB,   front-right: 38326 /  58% / -13.98 dB
+	        balance 0.00
+	Buffer Latency: 0 usec
+	Sink Latency: 0 usec
+	Resample method: PipeWire
+	Properties:
+		client.api = "pipewire-pulse"
+		pulse.server.type = "unix"
+		application.name = "LibreWolf"
+		application.process.id = "1756"
+		application.process.user = "yessiest"
+		application.process.host = "architect"
+		application.process.binary = "librewolf"
+		application.language = "C.UTF-8"
+		window.x11.display = ":0"
+		application.process.machine_id = "a8099c2d12fe88c3df940ed562adbe8c"
+		application.process.session_id = "1"
+		media.name = "AudioStream"
+		node.rate = "1/44100"
+		node.latency = "3307/44100"
+		stream.is-live = "true"
+		node.name = "LibreWolf"
+		node.autoconnect = "true"
+		node.want-driver = "true"
+		media.class = "Stream/Output/Audio"
+		adapt.follower.spa-node = ""
+		object.register = "false"
+		factory.id = "6"
+		clock.quantum-limit = "8192"
+		factory.mode = "split"
+		audio.adapt.follower = ""
+		library.name = "audioconvert/libspa-audioconvert"
+		client.id = "56"
+		object.id = "57"
+		object.serial = "75"
+		pulse.attr.maxlength = "4194304"
+		pulse.attr.tlength = "44104"
+		pulse.attr.prebuf = "35296"
+		pulse.attr.minreq = "8816"
+		module-stream-restore.id = "sink-input-by-application-name:LibreWolf"
+]]
+rprint(parsers.yaml_pseudo(data))
+-- Fast incomplete yaml parser
+data = [[
+Sink Input #73
+	Driver: PipeWire
+	Owner Module: n/a
+	Client: 58
+	Sink: 46
+	Sample Specification: float32le 2ch 44100Hz
+	Channel Map: front-left,front-right
+	Format: pcm, format.sample_format = "\"float32le\""  format.rate = "44100"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
+	Corked: no
+	Mute: no
+	Volume: front-left: 38326 /  58% / -13.98 dB,   front-right: 38326 /  58% / -13.98 dB
+	        balance 0.00
+	Buffer Latency: 0 usec
+	Sink Latency: 0 usec
+	Resample method: PipeWire
+	Properties:
+		client.api = "pipewire-pulse"
+		pulse.server.type = "unix"
+		application.name = "LibreWolf"
+		application.process.id = "1756"
+		application.process.user = "yessiest"
+		application.process.host = "architect"
+		application.process.binary = "librewolf"
+		application.language = "C.UTF-8"
+		window.x11.display = ":0"
+		application.process.machine_id = "a8099c2d12fe88c3df940ed562adbe8c"
+		application.process.session_id = "1"
+		media.name = "AudioStream"
+		node.rate = "1/44100"
+		node.latency = "3307/44100"
+		stream.is-live = "true"
+		node.name = "LibreWolf"
+		node.autoconnect = "true"
+		node.want-driver = "true"
+		media.class = "Stream/Output/Audio"
+		adapt.follower.spa-node = ""
+		object.register = "false"
+		factory.id = "6"
+		clock.quantum-limit = "8192"
+		factory.mode = "split"
+		audio.adapt.follower = ""
+		library.name = "audioconvert/libspa-audioconvert"
+		client.id = "56"
+		object.id = "57"
+		object.serial = "75"
+		pulse.attr.maxlength = "4194304"
+		pulse.attr.tlength = "44104"
+		pulse.attr.prebuf = "35296"
+		pulse.attr.minreq = "8816"
+		module-stream-restore.id = "sink-input-by-application-name:LibreWolf"
+
+Sink Input #75
+	Driver: PipeWire
+	Owner Module: n/a
+	Client: 58
+	Sink: 46
+	Sample Specification: float32le 2ch 44100Hz
+	Channel Map: front-left,front-right
+	Format: pcm, format.sample_format = "\"float32le\""  format.rate = "44100"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
+	Corked: no
+	Mute: no
+	Volume: front-left: 38326 /  58% / -13.98 dB,   front-right: 38326 /  58% / -13.98 dB
+	        balance 0.00
+	Buffer Latency: 0 usec
+	Sink Latency: 0 usec
+	Resample method: PipeWire
+	Properties:
+		client.api = "pipewire-pulse"
+		pulse.server.type = "unix"
+		application.name = "LibreWolf"
+		application.process.id = "1756"
+		application.process.user = "yessiest"
+		application.process.host = "architect"
+		application.process.binary = "librewolf"
+		application.language = "C.UTF-8"
+		window.x11.display = ":0"
+		application.process.machine_id = "a8099c2d12fe88c3df940ed562adbe8c"
+		application.process.session_id = "1"
+		media.name = "AudioStream"
+		node.rate = "1/44100"
+		node.latency = "3307/44100"
+		stream.is-live = "true"
+		node.name = "LibreWolf"
+		node.autoconnect = "true"
+		node.want-driver = "true"
+		media.class = "Stream/Output/Audio"
+		adapt.follower.spa-node = ""
+		object.register = "false"
+		factory.id = "6"
+		clock.quantum-limit = "8192"
+		factory.mode = "split"
+		audio.adapt.follower = ""
+		library.name = "audioconvert/libspa-audioconvert"
+		client.id = "56"
+		object.id = "57"
+		object.serial = "75"
+		pulse.attr.maxlength = "4194304"
+		pulse.attr.tlength = "44104"
+		pulse.attr.prebuf = "35296"
+		pulse.attr.minreq = "8816"
+		module-stream-restore.id = "sink-input-by-application-name:LibreWolf"
+]]
+rprint(parsers.fast_split_yaml(data))

libs/parsers.lua

@@ -34,7 +34,60 @@ local function split_strings(text)
     return split
 end
 
+parsers.fast_split_yaml = function(cfgtext)
+    -- Fast yaml splitter - incomplete parsing, only first layer is parsed
+    -- Used within timers to find objects while decreasing CPU usage
+    local items = {}
+    local replacements = 1
+    cfgtext = cfgtext:gsub("^%s*","")
+    while replacements > 0 do
+        cfgtext,replacements = cfgtext:gsub("^(.-\n)(%S+)",function(struct,n)
+            table.insert(items,struct)
+            return ""..n
+        end)
+    end
+    table.insert(items,cfgtext)
+    return items
+end
+parsers.yaml_pseudo = function(cfgtext)
+    -- Somewhat yaml-like structure used by pactl
+    local struct = {}
+    local lines = {}
+    cfgtext:gsub("(%s*)([^\n]*)",function(spacing,line)
+        table.insert(lines,
+            {
+                spacing:len(),
+                -- key
+                line:match("^([^:=]-)%s*[:=]") or line,
+                -- value
+                line:match(":%s*(.-)%s*$") or
+                line:match("=%s*(.-)%s*$")
+            }
+        )
+    end)
+    local history = {struct}
+    local spacing_width = 0
+    for k,v in pairs(lines) do
+        if v[1] > spacing_width then
+            history[#history][lines[k-1][2]] = {
+                [lines[k-1][2]] = lines[k-1][3]
+            }
+            history[#history+1] = history[#history][lines[k-1][2]]
+        elseif v[1] < spacing_width then
+            history[#history] = nil
+        end
+        if v[3] and v[3]:match("^%s*\".*\"%s*$") then
+            history[#history][v[2]] = v[3]:match("^%s*\"(.*)\"%s*$")
+        else
+            history[#history][v[2]] = v[3]
+        end
+        spacing_width = v[1]
+    end
+    return struct
+end
+
 parsers.conf = function(cfgtext)
+    -- Conf style parser (not exactly TOML)
     cfgtext = cfgtext:gsub("#[^\n]*","")
     local split_by_strings,err = split_strings(cfgtext)
     if not split_by_strings then

libs/syscontrol.lua

@@ -10,7 +10,8 @@
 local syscontrol = {
     power_supply = {},
     backlight = {},
-    hwmon = {}
+    hwmon = {},
+    pulse = {}
 }
 syscontrol.backlight.enumerate = function()
     local lshandler = io.popen("ls -1 /sys/class/backlight","r")

modules/binds.lua

@@ -11,7 +11,7 @@ local gears = require("gears")
 local ask = require("asckey")
 global.modkey = global.modkey or "Mod4"
 
-ask.keymap = keybindings
+ask.set_keymap(config.keys)
 local custom_keys = ask.custom_binds()
 local k = ask.k
 
@@ -101,7 +101,22 @@ local clientkeys = gears.table.join(
             c.maximized = not c.maximized
             c:raise()
         end ,
-    {description = "(un)maximize", group = "client"}))
+    {description = "(un)maximize", group = "client"}),
+    k(":client.pin",
+        function (c)
+            c.sticky = not c.sticky
+        end ,
+    {description = "(un)pin", group = "client"}),
+    k(":client.toggle_titlebars",
+        function (c)
+            if (not c.titlebar_top.visible) then
+                c:emit_signal("titlebar::unhide")
+            else
+                c:emit_signal("titlebar::hide")
+            end
+        end ,
+    {description = "(un)hide titlebars", group = "client"}))
+
 awful.rules.rules[1].properties.keys = clientkeys
 
 local clientbuttons = gears.table.join(

modules/desktop.lua

@@ -156,7 +156,7 @@ client.connect_signal("request::titlebars",function(c)
             fg_focus = style[v].fg_focus,
             font = style[v].font
         })
-        titlebar:setup(t.titlebar(contents))
+        c[v] = titlebar:setup(t.titlebar(contents))
         awful.rules.rules[1].properties.placement(c)
         if style[v].onfocus then
             c:connect_signal("focus",function()
@@ -168,6 +168,12 @@ client.connect_signal("request::titlebars",function(c)
                 style[v].onunfocus(titlebar)
             end)
         end
+        c:connect_signal("titlebar::hide",function(c)
+            c[v].visible = false
+        end)
+        c:connect_signal("titlebar::unhide",function(c)
+            c[v].visible = true
+        end)
     end
 end)
 end --}}}

modules/global.lua

@@ -12,16 +12,8 @@ local conf_file = io.open(root_path.."/desktop.conf","r")
 if not conf_file then
     error("desktop.conf is missing or not readable")
 end
-local config = conf(conf_file:read("*a"))
+config = conf(conf_file:read("*a"))
 conf_file:close()
 global = config.global
 global.terminal = envsub(global.terminal)
 global.browser = envsub(global.browser)
-local function invert(t)
-    local new_t = {}
-    for k,v in pairs(t) do
-        new_t[v] = k
-    end
-    return new_t
-end
-keybindings = invert(config.keys)

modules/powermanX.lua

@@ -0,0 +1,63 @@
+--   This file is part of Reno desktop.
+--
+--  Reno desktop is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+--
+--  Reno desktop is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License along with Reno desktop. If not, see <https://www.gnu.org/licenses/>. 
+--  Powerman X - second generation of the power management daemon
+local sysctl = require("syscontrol")
+local naughty = require("naughty")
+local gears = require("gears")
+local awful = require("awful")
+local batteries = sysctl.power_supply.enumerate()
+local state_tracking = {}
+-- Configuration variables
+local cfg = config.powerman or {}
+local quality_min = cfg.battery_quality_min or 33
+local capacity_min = cfg.battery_capacity_min or 15
+-- Main loop
+local update_loop = gears.timer({
+    timeout = 2,
+    autostart = true,
+    callback = function()
+        for k,v in pairs(batteries) do
+            local data,err = sysctl.power_supply.read_attribs(v)
+            state_tracking[v] = state_tracking[v] or {}
+            if data.type == "Battery" then
+                if (tonumber(data.quality) < quality_min) and 
+                   (not state_tracking[v].quality_notification) then
+                    naughty.notify({
+                        title = "Critical battery condition",
+                        text = "Battery "..data.name.." has reached critically low condition, seek a suitable replacement"
+                    })
+                    state_tracking[v].quality_notification = true
+                end
+                if (tonumber(data.capacity) <= capacity_min) and 
+                   (not data.charging) and
+                   (not state_tracking[v].capacity_notification) then
+                    naughty.notify({
+                        title = "Battery capacity low",
+                        text = "Battery "..data.name.." capacity is at "..tostring(data.capacity).."%"
+                    })
+                    state_tracking[v].capacity_notification = true
+                end
+                if (tonumber(data.capacity) > capacity_min) then
+                    state_tracking[v].capacity_notification = false
+                end
+                if (data.capacity == "100") and 
+                   (data.charging) and
+                   (not state_tracking[v].charged_notification) then
+                    naughty.notify({
+                        title = "Battery is completely charged",
+                        text = "Disconnect the charger from the power grid to avoid passive electricity usage."
+                    })
+                end
+                if (not data.charging) then
+                    state_tracking[v].charged_notification = false
+                end
+            end
+        end
+    end
+})
+

rc.lua

@@ -16,6 +16,7 @@ package.cpath = package.cpath
 -- Modules list
 require("modules.collect_garbage")
 require("modules.global")
+require("modules.powermanX")
 require("modules.errorlog")
 require("modules.base")
 require("modules.binds")

themes/unity/config/client_menu.json

@@ -1,5 +1,6 @@
 {
     "list": [
+        {"widget": "widgets.clientvolume"},
         {"widget": "widgets.clientcontrols"},
         {"widget": "widgets.clientbuttons"}
     ],

themes/unity/theme.lua

@@ -1,6 +1,6 @@
--- Reno98 - a retro replica of a very recognizable theme
+-- Reno Unity - Unity theme for Reno desktop
 --[[
-    Reno98 - A theme for Reno desktop
+    Reno Unity - A theme for Reno desktop
 
     Written in 2022 by Yessiest (yessiest@memeware.net)
 
@@ -306,11 +306,20 @@ theme.widgets = {
             end,
             height = 20,
             width = 140,
+            bg_focus = theme.bg_normal,
+            bg_normal = theme.bg_focus,
             handle_width = 8,
-            handle_border_color = theme.bg_focus,
+            handle_border_color = theme.bg_normal,
             handle_border_width = 2,
-            bar_height = 6
+            bar_height = 6,
-        }
+            bar_border_color = theme.bg_focus,
+            bar_border_width = 2
+        },
+        checkbox = {
+            shape = gears.shape.circle,
+            shape_border_width = 3,
+            shaoe_border_color = theme.bg_focus
+        },
     },
     -- }}}
     -- {{{ Menus

widgets/battery.lua

@@ -12,6 +12,7 @@ local gears = require("gears")
 local wibox = require("wibox")
 local awmtk2 = require("awmtk2")
 local syscontrol = require("syscontrol")
+local ask = require("asckey")
 
 local function get_virtual_icon(data)
     -- Get an icon from a cumulative total of battery percentages and current charging state
@@ -182,14 +183,25 @@ return function(args)
     -- }}}
     -- {{{ Backlight
     local backlight_devices = syscontrol.backlight.enumerate()
+    local default_backlight_device
     for k,v in pairs(backlight_devices) do
         local data = syscontrol.backlight.read_attribs(v)
         if data then
             widget_map[data.name] = wibox.widget(t.container({
+                {
                     t.article({
                         icon = beautiful["backlight-symbolic"],
                         title = "Backlight",
                     }),
+                    (data.writable and t.checkbox({
+                        checked = true,
+                        id = "checkbox",
+                        forced_height = style.article.icon_size,
+                        forced_width = style.article.icon_size
+                    })),
+                    layout = wibox.layout.fixed.horizontal,
+                    spacing = style.base.spacing
+                },
                 t.textbox({
                     markup = "Brightness: "..tostring(data.brightness),
                     id = "brightness_id"
@@ -201,7 +213,7 @@ return function(args)
                 (data.writable and t.slider({
                     minimum = data.max_brightness*0.05,
                     maximum = data.max_brightness,
-                    value = data.brightness,
+                    value = tonumber(data.brightness),
                     id = "slider"
                 })),
                 layout = wibox.layout.fixed.vertical
@@ -210,11 +222,22 @@ return function(args)
                 bgimage = style.container.bgimage_highlight
             }))
             if data.writable then
-                local slider = widget_map[data.name]:get_children_by_id("slider")[1]
+                local w = widget_map[data.name]
+                local slider = w:get_children_by_id("slider")[1]
                 slider:connect_signal("widget::redraw_needed",function(self)
                     local value = self.value
                     syscontrol.backlight.set_brightness(data,math.floor(value))
                 end)
+                slider.value = tonumber(data.brightness)
+                local checkbox = w:get_children_by_id("checkbox")[1]
+                checkbox:connect_signal("button::press",function()
+                    if default_backlight_device then
+                        local check2 = widget_map[default_backlight_device.name]
+                            :get_children_by_id("checkbox")[1]
+                        check2.checked = false
+                    end
+                    default_backlight_device = data
+                end)
             end
             layout:add(widget_map[data.name])
         end
@@ -236,6 +259,34 @@ return function(args)
             end
         end
     })
+    -- Keybindings
+    root.keys(gears.table.join(
+        root.keys(),
+        ask.k(":battery.brightness_up",function()
+            if default_backlight_device then
+                local data = default_backlight_device
+                local s = widget_map[data.name]:get_children_by_id("slider")[1]
+                local value = s.value+(data.max_brightness*0.05)
+                if value > data.max_brightness then
+                    value = data.max_brightness
+                end
+                syscontrol.backlight.set_brightness(data,math.floor(value))
+                s.value = math.floor(value)
+            end
+        end,{description="increase brightness", group = "widgets"}),
+        ask.k(":battery.brightness_down",function()
+            if default_backlight_device then
+                local data = default_backlight_device
+                local s = widget_map[data.name]:get_children_by_id("slider")[1]
+                local value = s.value-(data.max_brightness*0.05)
+                if value < data.max_brightness*0.05 then
+                    value = data.max_brightness*0.05
+                end
+                syscontrol.backlight.set_brightness(data,math.floor(value))
+                s.value = math.floor(value)
+            end
+        end,{description="decrease brightness", group = "widgets"})
+    ))
     -- }}}
     -- We don't need this widget if we don't have anything to show
     local function count(t)

widgets/clientvolume.lua

@@ -0,0 +1,154 @@
+--   This file is part of Reno desktop.
+--
+--  Reno desktop is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+--
+--  Reno desktop is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License along with Reno desktop. If not, see <https://www.gnu.org/licenses/>. 
+--  Pulseaudio per-client volume setting
+local awful = require("awful")
+local gears = require("gears")
+local wibox = require("wibox")
+local awmtk2 = require("awmtk2")
+local fastyaml = require("parsers").fast_split_yaml
+local beautiful = require("beautiful")
+local ask = require("asckey")
+local pactl_data = {}
+
+local test_pactl = os.execute("pactl --version")
+local result = test_pactl
+if _VERSION:match("5.1") then
+    result = (test_pactl == 0) 
+end
+if not result then
+    return
+end
+
+local function get_icon(percent)
+    if percent >= 66 then
+        return beautiful["volume-high-symbolic"]
+    elseif percent >= 33 then
+        return beautiful["volume-medium-symbolic"]
+    elseif percent > 0 then
+        return beautiful["volume-low-symbolic"]
+    else
+        return beautiful["volume-muted-symbolic"]
+    end
+end
+
+
+return function(args)
+    local style = awmtk2.create_style("client_volume",
+        awmtk2.generic.oneline_widget, args.style)
+    local templates = awmtk2.create_template_lib("client_volume",awmtk2.templates,args.templates)
+    local t = awmtk2.build_templates(templates,style)
+    local widget = wibox.widget(t.container({
+        t.center({
+            id = "client_volume_icon",
+            widget = wibox.widget.imagebox
+        }),
+        t.textbox({
+            id = "error"
+        }),
+        t.slider({
+            minimum = 0,
+            maximum = 100,
+            id = "client_volume",
+            value = -1
+        }),
+        layout = wibox.layout.fixed.horizontal
+    }))
+    local errorbox = widget:get_children_by_id("error")[1]
+    local icon = widget:get_children_by_id("client_volume_icon")[1]
+    local slider = widget:get_children_by_id("client_volume")[1]
+    -- Local tracking value to prevent zero volume on start
+    local slider_touched = false
+    -- Get initial pactl data
+    awful.spawn.easy_async("pactl list sink-inputs",function(stdout)
+        local pactl_data = fastyaml(stdout)
+    end)
+    -- Attach to focus change
+    client.connect_signal("update_volume",function(c)
+        awful.spawn.easy_async("pactl list sink-inputs",function(stdout)
+            local pactl_data = fastyaml(stdout)
+            local cl  
+            for k,v in pairs(pactl_data) do
+                if not c then return end
+                if v:match("application.process.id = \""..tostring(c.pid).."\"") then
+                    cl = v
+                end
+            end
+            if not cl then
+                slider.visible = false
+                errorbox.visible = true
+                errorbox:set_markup("No sound/Not available")
+                icon:set_image(beautiful["volume-muted-symbolic"])
+                return
+            end
+            local volume = tonumber(cl:match("Volume:[^\n]-(%d*)%%"))
+            slider.visible = true
+            errorbox.visible = false
+            icon:set_image(get_icon(volume))
+            slider.value = volume
+            touched = true
+        end)
+    end)
+    client.connect_signal("focus",function(c)
+        touched = false
+        c:emit_signal("update_volume")
+    end)
+    local update_timer = gears.timer({
+        timeout = 0.5,
+        autostart = true,
+        callback = function()
+            if client.focus then
+                client.focus:emit_signal("update_volume")
+            end
+        end
+    })
+    -- Async lock to prevent callback interference
+    local volume_lock = false
+    -- Function to set client volume
+    local function volume(volume)
+        if volume_lock then return end
+        volume_lock = true
+        awful.spawn.easy_async("pactl list sink-inputs",function(stdout)
+            local pactl_data = fastyaml(stdout)
+            local cl = {}
+            if not (client.focus and client.focus.pid) then
+                volume_lock = false
+                return
+            end
+            for k,v in pairs(pactl_data) do
+                if v:match("application.process.id = \""..tostring(client.focus.pid).."\"") then
+                    local sink_id = v:match("^%s*Sink Input #(%d+)")
+                    if sink_id then
+                        print(sink_id, volume)
+                        awful.spawn("pactl set-sink-input-volume "..tostring(sink_id).." "..tostring(volume).."%")
+                    end
+                end
+            end
+            volume_lock = false
+        end)
+    end
+    -- Attach change to slider
+    slider:connect_signal("widget::redraw_needed",function(widget)
+        if touched then
+            volume(slider.value)
+            update_timer:again()
+        end
+    end)
+    root.keys(gears.table.join(
+        root.keys(),
+        ask.k(":client.volume_up", function()
+            volume("+5")
+        end,{description = "increase client volume", group = "client"}),
+        ask.k(":client.volume_down", function()
+            volume("-5")
+        end,{description = "decrease client volume", group = "client"}),
+        ask.k(":client.volume_mute", function()
+            volume(0)
+        end,{description = "mute client", group = "client"})
+    ))
+    return widget 
+end

widgets/soundclown.lua

@@ -12,6 +12,7 @@ local wibox = require("wibox")
 local gears = require("gears")
 local awful = require("awful")
 local beautiful = require("beautiful")
+local ask = require("asckey")
 
 return function(args)
     local style = awmtk2.create_style("soundclown",
@@ -72,15 +73,16 @@ return function(args)
     local bprev = widget:get_children_by_id("prev")[1]
     bprev:connect_signal("button::press",style.button.onpress)
     bprev:connect_signal("button::release",style.button.onrelease)
-    bprev:connect_signal("button::press",function()
+    local function prev() 
         awful.spawn("mpc cdprev")
-    end)
+    end
+    bprev:connect_signal("button::press",prev)
     local pause_state = true
     local icon = widget:get_children_by_id("statusicon")[1]
     local bplay = widget:get_children_by_id("play")[1]
     bplay:connect_signal("button::press",style.button.onpress)
     bplay:connect_signal("button::release",style.button.onrelease)
-    bplay:connect_signal("button::press",function()
+    local function play()
         pause_state = (not pause_state)
         if pause_state == false then
             icon.image = beautiful["mpc-pause-symbolic"]
@@ -89,13 +91,16 @@ return function(args)
             icon.image = beautiful["mpc-play-symbolic"]
             awful.spawn("mpc play")
         end
-    end)
+    end
+    bplay:connect_signal("button::press",play)
     local bnext = widget:get_children_by_id("next")[1]
     bnext:connect_signal("button::press",style.button.onpress)
     bnext:connect_signal("button::release",style.button.onrelease)
-    bnext:connect_signal("button::press",function()
+    local function nextb()
         awful.spawn("mpc next")
-    end)
+    end
+    bnext:connect_signal("button::press",nextb)
+    local update_ready = true
     local function update_mpd_status()
         awful.spawn.easy_async("mpc",function(out)
             local status = ""
@@ -104,6 +109,7 @@ return function(args)
                     state = true
                     icon.image = beautiful["mpc-play-symbolic"]
                     display:set_markup(status)
+                    update_ready = true
                     return
                 else
                     status = status.."[PAUSED] "
@@ -113,6 +119,7 @@ return function(args)
                      out:match("[^\n]*").." "..
                      out:match("%d*:%d*/%d*:%d*%s*%(%d*%%%)")
             display:set_markup(status)
+            update_ready = true
         end)
     end
     update_mpd_status()
@@ -120,8 +127,19 @@ return function(args)
         timeout = args.polling_delay or 1,
         autostart = true,
         callback = function() 
+            if not update_ready then return end
+            update_ready = false
             update_mpd_status()
         end
    }
+    root.keys(gears.table.join(
+        root.keys(),
+        ask.k(":mpc.prev",prev,
+            {description = "switch to previous MPD track",group="widgets"}),
+        ask.k(":mpc.play",play,
+            {description = "play/pause MPD",group="widgets"}),
+        ask.k(":mpc.next",nextb,
+            {description = "switch to next MPD track",group="widgets"})
+    ))
     return widget
 end