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https://github.com/streetturtle/awesome-wm-widgets.git
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pactl: A new volume widget using pactl only
Add a new volume widget that is using pactl only for controlling volume and selecting sources and sinks. It therefore works with PulseAudio or PipeWire as backend, unlike the original Volume widget. The code is split as follows: - volume.lua contains the UI logic - pactl.lua contains the pactl interfacing and output parsing - utils.lua contains some shared helper routines It is heavily based on the original Volume code and supports the same configuration options and uses the same widget code.
This commit is contained in:
Stefan Huber
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4 changed files with 439 additions and 0 deletions
54
pactl-widget/README.md
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54
pactl-widget/README.md
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# Pactl volume widget
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This is a volume widget that uses `pactl` only for controlling volume and
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selecting sinks and sources. Hence, it can be used with PulseAudio or PipeWire
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likewise, unlike the original Volume widget.
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Other than that it is heavily based on the original widget, including its
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customization and icon options. For screenshots, see the original widget.
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## Installation
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Clone the repo under **~/.config/awesome/** and add widget in **rc.lua**:
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```lua
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local volume_widget = require('awesome-wm-widgets.pactl-widget.volume')
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...
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s.mytasklist, -- Middle widget
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{ -- Right widgets
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layout = wibox.layout.fixed.horizontal,
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...
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-- default
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volume_widget(),
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-- customized
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volume_widget{
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widget_type = 'arc'
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},
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```
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### Shortcuts
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To improve responsiveness of the widget when volume level is changed by a shortcut use corresponding methods of the widget:
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```lua
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awful.key({}, "XF86AudioRaiseVolume", function () volume_widget:inc(5) end),
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awful.key({}, "XF86AudioLowerVolume", function () volume_widget:dec(5) end),
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awful.key({}, "XF86AudioMute", function () volume_widget:toggle() end),
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```
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## Customization
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It is possible to customize the widget by providing a table with all or some of
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the following config parameters:
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### Generic parameter
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| Name | Default | Description |
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|---|---|---|
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| `mixer_cmd` | `pavucontrol` | command to run on middle click (e.g. a mixer program) |
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| `step` | `5` | How much the volume is raised or lowered at once (in %) |
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| `widget_type`| `icon_and_text`| Widget type, one of `horizontal_bar`, `vertical_bar`, `icon`, `icon_and_text`, `arc` |
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| `device` | `@DEFAULT_SINK@` | Select the device name to control |
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For more details on parameters depending on the chosen widget type, please
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refer to the original Volume widget.
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124
pactl-widget/pactl.lua
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124
pactl-widget/pactl.lua
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local spawn = require("awful.spawn")
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local utils = require("awesome-wm-widgets.pactl-widget.utils")
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local pactl = {}
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function pactl.volume_increase(device, step)
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spawn('pactl set-sink-volume ' .. device .. ' +' .. step .. '%', false)
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end
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function pactl.volume_decrease(device, step)
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spawn('pactl set-sink-volume ' .. device .. ' -' .. step .. '%', false)
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end
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function pactl.mute_toggle(device)
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spawn('pactl set-sink-mute ' .. device .. ' toggle', false)
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end
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function pactl.get_volume(device)
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local stdout = utils.popen_and_return('pactl get-sink-volume ' .. device)
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local volsum, volcnt = 0, 0
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for vol in string.gmatch(stdout, "(%d?%d?%d)%%") do
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vol = tonumber(vol)
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if vol ~= nil then
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volsum = volsum + vol
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volcnt = volcnt + 1
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end
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end
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if volcnt == 0 then
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return nil
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end
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return volsum / volcnt
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end
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function pactl.get_mute(device)
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local stdout = utils.popen_and_return('pactl get-sink-mute ' .. device)
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if string.find(stdout, "yes") then
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return true
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else
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return false
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end
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end
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function pactl.get_sinks_and_sources()
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local default_sink = utils.trim(utils.popen_and_return('pactl get-default-sink'))
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local default_source = utils.trim(utils.popen_and_return('pactl get-default-source'))
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local sinks = {}
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local sources = {}
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local device
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local ports
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local key
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local value
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local in_section
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for line in utils.popen_and_return('pactl list'):gmatch('[^\r\n]*') do
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if string.match(line, '^%a+ #') then
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in_section = nil
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end
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local is_sink_line = string.match(line, '^Sink #')
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local is_source_line = string.match(line, '^Source #')
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if is_sink_line or is_source_line then
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in_section = "main"
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device = {
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id = line:match('#(%d+)'),
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is_default = false
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}
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if is_sink_line then
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table.insert(sinks, device)
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else
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table.insert(sources, device)
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end
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end
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-- Found a new subsection
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if in_section ~= nil and string.match(line, '^\t%a+:$') then
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in_section = utils.trim(line):lower()
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in_section = string.sub(in_section, 1, #in_section-1)
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if in_section == 'ports' then
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ports = {}
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device['ports'] = ports
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end
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end
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-- Found a key-value pair
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if string.match(line, "^\t*[^\t]+: ") then
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local t = utils.split(line, ':')
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key = utils.trim(t[1]):lower():gsub(' ', '_')
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value = utils.trim(t[2])
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end
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-- Key value pair on 1st level
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if in_section ~= nil and string.match(line, "^\t[^\t]+: ") then
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device[key] = value
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if key == "name" and (value == default_sink or value == default_source) then
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device['is_default'] = true
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end
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end
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-- Key value pair in ports section
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if in_section == "ports" and string.match(line, "^\t\t[^\t]+: ") then
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ports[key] = value
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end
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end
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return sinks, sources
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end
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function pactl.set_default(type, name)
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spawn('pactl set-default-' .. type .. ' "' .. name .. '"', false)
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end
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return pactl
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28
pactl-widget/utils.lua
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28
pactl-widget/utils.lua
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local utils = {}
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function utils.trim(str)
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return string.match(str, "^%s*(.-)%s*$")
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end
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function utils.split(string_to_split, separator)
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if separator == nil then separator = "%s" end
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local t = {}
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for str in string.gmatch(string_to_split, "([^".. separator .."]+)") do
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table.insert(t, str)
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end
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return t
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end
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function utils.popen_and_return(cmd)
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local handle = io.popen(cmd)
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local result = handle:read("*a")
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handle:close()
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return result
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end
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return utils
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233
pactl-widget/volume.lua
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233
pactl-widget/volume.lua
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-------------------------------------------------
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-- A purely pactl-based volume widget based on the original Volume widget
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-- More details could be found here:
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-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/pactl-widget
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-- @author Stefan Huber
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-- @copyright 2023 Stefan Huber
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-------------------------------------------------
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local awful = require("awful")
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local wibox = require("wibox")
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local spawn = require("awful.spawn")
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local gears = require("gears")
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local beautiful = require("beautiful")
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local pactl = require("awesome-wm-widgets.pactl-widget.pactl")
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local utils = require("awesome-wm-widgets.pactl-widget.utils")
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local widget_types = {
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icon_and_text = require("awesome-wm-widgets.volume-widget.widgets.icon-and-text-widget"),
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icon = require("awesome-wm-widgets.volume-widget.widgets.icon-widget"),
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arc = require("awesome-wm-widgets.volume-widget.widgets.arc-widget"),
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horizontal_bar = require("awesome-wm-widgets.volume-widget.widgets.horizontal-bar-widget"),
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vertical_bar = require("awesome-wm-widgets.volume-widget.widgets.vertical-bar-widget")
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}
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local volume = {}
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local rows = { layout = wibox.layout.fixed.vertical }
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local popup = awful.popup{
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bg = beautiful.bg_normal,
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ontop = true,
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visible = false,
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shape = gears.shape.rounded_rect,
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border_width = 1,
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border_color = beautiful.bg_focus,
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maximum_width = 400,
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offset = { y = 5 },
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widget = {}
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}
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local function build_main_line(device)
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if device.active_port ~= nil and device.ports[device.active_port] ~= nil then
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return device.description .. ' · ' .. utils.split(device.ports[device.active_port], " ")[1]
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else
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return device.description
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end
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end
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local function build_rows(devices, on_checkbox_click, device_type)
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local device_rows = { layout = wibox.layout.fixed.vertical }
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for _, device in pairs(devices) do
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local checkbox = wibox.widget {
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checked = device.is_default,
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color = beautiful.bg_normal,
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paddings = 2,
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shape = gears.shape.circle,
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forced_width = 20,
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forced_height = 20,
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check_color = beautiful.fg_urgent,
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widget = wibox.widget.checkbox
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}
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checkbox:connect_signal("button::press", function()
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pactl.set_default(device_type, device.name)
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on_checkbox_click()
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end)
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local row = wibox.widget {
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{
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{
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{
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checkbox,
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valign = 'center',
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layout = wibox.container.place,
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},
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{
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{
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text = build_main_line(device),
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align = 'left',
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widget = wibox.widget.textbox
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},
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left = 10,
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layout = wibox.container.margin
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},
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spacing = 8,
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layout = wibox.layout.align.horizontal
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},
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margins = 4,
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layout = wibox.container.margin
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},
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bg = beautiful.bg_normal,
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widget = wibox.container.background
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}
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row:connect_signal("mouse::enter", function(c) c:set_bg(beautiful.bg_focus) end)
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row:connect_signal("mouse::leave", function(c) c:set_bg(beautiful.bg_normal) end)
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local old_cursor, old_wibox
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row:connect_signal("mouse::enter", function()
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local wb = mouse.current_wibox
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old_cursor, old_wibox = wb.cursor, wb
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wb.cursor = "hand1"
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end)
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row:connect_signal("mouse::leave", function()
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if old_wibox then
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old_wibox.cursor = old_cursor
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old_wibox = nil
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end
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end)
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row:connect_signal("button::press", function()
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pactl.set_default(device_type, device.name)
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on_checkbox_click()
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end)
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table.insert(device_rows, row)
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end
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return device_rows
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end
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local function build_header_row(text)
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return wibox.widget{
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{
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markup = "<b>" .. text .. "</b>",
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align = 'center',
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widget = wibox.widget.textbox
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},
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bg = beautiful.bg_normal,
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widget = wibox.container.background
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}
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end
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local function rebuild_popup()
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for i = 0, #rows do
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rows[i]=nil
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end
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local sinks, sources = pactl.get_sinks_and_sources()
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table.insert(rows, build_header_row("SINKS"))
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table.insert(rows, build_rows(sinks, function() rebuild_popup() end, "sink"))
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table.insert(rows, build_header_row("SOURCES"))
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table.insert(rows, build_rows(sources, function() rebuild_popup() end, "source"))
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popup:setup(rows)
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end
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local function worker(user_args)
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local args = user_args or {}
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local mixer_cmd = args.mixer_cmd or 'pavucontrol'
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local widget_type = args.widget_type
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local refresh_rate = args.refresh_rate or 1
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local step = args.step or 5
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local device = args.device or '@DEFAULT_SINK@'
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if widget_types[widget_type] == nil then
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volume.widget = widget_types['icon_and_text'].get_widget(args.icon_and_text_args)
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else
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volume.widget = widget_types[widget_type].get_widget(args)
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end
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local function update_graphic(widget)
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local vol = pactl.get_volume(device)
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if vol ~= nil then
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widget:set_volume_level(vol)
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end
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if pactl.get_mute(device) then
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widget:mute()
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else
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widget:unmute()
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end
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end
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function volume:inc(s)
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pactl.volume_increase(device, s or step)
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update_graphic(volume.widget)
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end
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function volume:dec(s)
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pactl.volume_decrease(device, s or step)
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update_graphic(volume.widget)
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end
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function volume:toggle()
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pactl.mute_toggle(device)
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update_graphic(volume.widget)
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end
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function volume:popup()
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if popup.visible then
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popup.visible = not popup.visible
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else
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rebuild_popup()
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popup:move_next_to(mouse.current_widget_geometry)
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end
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end
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function volume:mixer()
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if mixer_cmd then
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spawn(mixer_cmd)
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end
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end
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volume.widget:buttons(
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awful.util.table.join(
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awful.button({}, 1, function() volume:toggle() end),
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awful.button({}, 2, function() volume:mixer() end),
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awful.button({}, 3, function() volume:popup() end),
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awful.button({}, 4, function() volume:inc() end),
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awful.button({}, 5, function() volume:dec() end)
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)
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)
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gears.timer {
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timeout = refresh_rate,
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call_now = true,
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autostart = true,
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callback = function()
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update_graphic(volume.widget)
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end
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}
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return volume.widget
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end
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return setmetatable(volume, { __call = function(_, ...) return worker(...) end })
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