Allow multiple instances of the pulseaudio widget

Enable switching between default sink or source in pulseaudio widget

widgets/pulseaudio.lua

@@ -16,17 +16,16 @@ local setmetatable = setmetatable
 
 -- PulseAudio volume
 -- lain.widgets.pulseaudio
-local pulseaudio = {}
 
 local function worker(args)
+    local pulseaudio = { wibox.widget.textbox() }
     local args        = args or {}
+    local devicetype  = args.devicetype or "sink"
     local timeout     = args.timeout or 5
     local settings    = args.settings or function() end
     local scallback   = args.scallback
 
-   pulseaudio.cmd    = args.cmd or "pacmd list-sinks | sed -n -e '0,/*/d' -e '/base volume/d' -e '/volume:/p' -e '/muted:/p' -e '/device\\.string/p'"
-
-   pulseaudio.widget = wibox.widget.textbox()
+    pulseaudio.cmd    = args.cmd or "pacmd list-" .. devicetype .. "s | sed -n -e '0,/*/d' -e '/base volume/d' -e '/volume:/p' -e '/muted:/p' -e '/device\\.string/p'"
 
     function pulseaudio.update()
         if scallback then pulseaudio.cmd = scallback() end
@@ -34,7 +33,8 @@ local function worker(args)
         helpers.async({ shell, "-c", pulseaudio.cmd }, function(s)
             volume_now = {
                 index = string.match(s, "index: (%S+)") or "N/A",
-              sink  = string.match(s, "device.string = \"(%S+)\"") or "N/A",
+                device = string.match(s, "device.string = \"(%S+)\"") or "N/A",
+                sink   = device, -- legacy API
                 muted  = string.match(s, "muted: (%S+)") or "N/A"
             }
 
@@ -49,6 +49,7 @@ local function worker(args)
             volume_now.right = volume_now.channel[2] or "N/A"
 
             widget = pulseaudio.widget
+
             settings()
         end)
     end
@@ -58,4 +59,4 @@ local function worker(args)
     return pulseaudio
 end
 
-return setmetatable(pulseaudio, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })

wiki

@@ -1 +1 @@
-Subproject commit e2ce961ae4ba86f373d26b79b7e7b4891e1a9aa9
+Subproject commit af671ad9bb1ce9c7bb74a75f489a3b5d0a934558