137 lines
3.8 KiB
Markdown
Executable File
137 lines
3.8 KiB
Markdown
Executable File
## Usage
|
|
|
|
[Read here.](https://github.com/lcpz/lain/wiki/Widgets#usage)
|
|
|
|
### Description
|
|
|
|
Shows ALSA volume.
|
|
|
|
```lua
|
|
local volume = lain.widget.alsa()
|
|
```
|
|
|
|
## Input table
|
|
|
|
Variable | Meaning | Type | Default
|
|
--- | --- | --- | ---
|
|
`timeout` | Refresh timeout (in seconds) | integer | 5
|
|
`cmd` | Alsa mixer command | string | "amixer"
|
|
`channel` | Mixer channel | string | "Master"
|
|
`togglechannel` | Toggle channel | string | `nil`
|
|
`settings` | User settings | function | empty function
|
|
|
|
`cmd` is useful if you need to pass additional arguments to amixer. For instance, you may want to define `cmd = "amixer -c X"` in order to set amixer with card `X`.
|
|
|
|
`settings` can use the following variables:
|
|
|
|
Variable | Meaning | Type | Values
|
|
--- | --- | --- | ---
|
|
`volume_now.level` | Volume level | integer | 0-100
|
|
`volume_now.status` | Device status | string | "on", "off"
|
|
|
|
## Output table
|
|
|
|
Variable | Meaning | Type
|
|
--- | --- | ---
|
|
`widget` | The widget | `wibox.widget.textbox`
|
|
`channel` | ALSA channel | string
|
|
`update` | Update `widget` | function
|
|
|
|
## Toggle channel
|
|
|
|
In case mute toggling can't be mapped to master channel (this happens, for instance, when you are using an HDMI output), define togglechannel as your S/PDIF device. You can get the device ID with `scontents` command.
|
|
|
|
For instance, if card number is 1 and S/PDIF number is 3:
|
|
|
|
```shell
|
|
$ amixer -c 1 scontents
|
|
Simple mixer control 'Master',0
|
|
Capabilities: volume
|
|
Playback channels: Front Left - Front Right
|
|
Capture channels: Front Left - Front Right
|
|
Limits: 0 - 255
|
|
Front Left: 255 [100%]
|
|
Front Right: 255 [100%]
|
|
Simple mixer control 'IEC958',0
|
|
Capabilities: pswitch pswitch-joined
|
|
Playback channels: Mono
|
|
Mono: Playback [on]
|
|
Simple mixer control 'IEC958',1
|
|
Capabilities: pswitch pswitch-joined
|
|
Playback channels: Mono
|
|
Mono: Playback [on]
|
|
Simple mixer control 'IEC958',2
|
|
Capabilities: pswitch pswitch-joined
|
|
Playback channels: Mono
|
|
Mono: Playback [on]
|
|
Simple mixer control 'IEC958',3
|
|
Capabilities: pswitch pswitch-joined
|
|
Playback channels: Mono
|
|
Mono: Playback [on]
|
|
```
|
|
|
|
you have to set `togglechannel = "IEC958,3"`.
|
|
|
|
## Buttons
|
|
|
|
If you want buttons, just add the following after your widget in `rc.lua`.
|
|
|
|
```lua
|
|
volume.widget:buttons(awful.util.table.join(
|
|
awful.button({}, 1, function() -- left click
|
|
awful.spawn(string.format("%s -e alsamixer", terminal))
|
|
end),
|
|
awful.button({}, 2, function() -- middle click
|
|
os.execute(string.format("%s set %s 100%%", volume.cmd, volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.button({}, 3, function() -- right click
|
|
os.execute(string.format("%s set %s toggle", volume.cmd, volume.togglechannel or volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.button({}, 4, function() -- scroll up
|
|
os.execute(string.format("%s set %s 1%%+", volume.cmd, volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.button({}, 5, function() -- scroll down
|
|
os.execute(string.format("%s set %s 1%%-", volume.cmd, volume.channel))
|
|
volume.update()
|
|
end)
|
|
))
|
|
```
|
|
|
|
## Keybindings
|
|
|
|
You can control the widget with keybindings like these:
|
|
|
|
```lua
|
|
-- ALSA volume control
|
|
awful.key({ altkey }, "Up",
|
|
function ()
|
|
os.execute(string.format("amixer set %s 1%%+", volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.key({ altkey }, "Down",
|
|
function ()
|
|
os.execute(string.format("amixer set %s 1%%-", volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.key({ altkey }, "m",
|
|
function ()
|
|
os.execute(string.format("amixer set %s toggle", volume.togglechannel or volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.key({ altkey, "Control" }, "m",
|
|
function ()
|
|
os.execute(string.format("amixer set %s 100%%", volume.channel))
|
|
volume.update()
|
|
end),
|
|
awful.key({ altkey, "Control" }, "0",
|
|
function ()
|
|
os.execute(string.format("amixer set %s 0%%", volume.channel))
|
|
volume.update()
|
|
end),
|
|
```
|
|
|
|
where `altkey = "Mod1"`.
|