Merge pull request #261 from nuno-silva/mixer

volume-widget: open mixer on middle click

volume-widget/README.md

@@ -9,6 +9,8 @@ From left to right: `horizontal_bar`, `vertical_bar`, `icon`, `icon_and_text`, `
 A right-click on the widget opens a popup where you can choose a sink/source:  
 ![sink-sources](screenshots/volume-sink-sources.png)
 
+Left click toggles mute and middle click opens a mixer ([pavucontrol](https://freedesktop.org/software/pulseaudio/pavucontrol/) by default).
+
 ### Features
 
  - switch between sinks/sources by right clicking on the widget;
@@ -52,6 +54,7 @@ It is possible to customize the widget by providing a table with all or some of
 
 | Name | Default | Description |
 |---|---|---|
+| `mixer_cmd` | `pavucontrol` | command to run on middle click (e.g. a mixer program) |
 | `widget_type`| `icon_and_text`| Widget type, one of `horizontal_bar`, `vertical_bar`, `icon`, `icon_and_text`, `arc` |
 
 Depending on the chosen widget type add parameters from the corresponding section below:

volume-widget/volume.lua

@@ -163,6 +163,7 @@ local function worker(user_args)
 
     local args = user_args or {}
 
+    local mixer_cmd = args.mixer_cmd or 'pavucontrol'
     local widget_type = args.widget_type
     local refresh_rate = args.refresh_rate or 1
 
@@ -194,6 +195,12 @@ local function worker(user_args)
         spawn.easy_async(TOG_VOLUME_CMD, function(stdout) update_graphic(volume.widget, stdout) end)
     end
 
+    function volume:mixer()
+        if mixer_cmd then
+            spawn.easy_async(mixer_cmd)
+        end
+    end
+
     volume.widget:buttons(
             awful.util.table.join(
                     awful.button({}, 3, function()
@@ -206,6 +213,7 @@ local function worker(user_args)
                     end),
                     awful.button({}, 4, function() volume:inc() end),
                     awful.button({}, 5, function() volume:dec() end),
+                    awful.button({}, 2, function() volume:mixer() end),
                     awful.button({}, 1, function() volume:toggle() end)
             )
     )