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59 lines
1.8 KiB
59 lines
1.8 KiB
10 years ago
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[<- widgets](https://github.com/copycat-killer/lain/wiki/Widgets)
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Shows and controls alsa volume with a textbox.
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volumewidget = lain.widgets.alsa()
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### input table
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Variable | Meaning | Type | Default
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--- | --- | --- | ---
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`timeout` | Refresh timeout seconds | int | 5
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`command` | Alsa mixer command | string | "amixer"
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`channel` | Mixer channel | string | "Master"
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`settings` | User settings | function | empty function
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`command` is useful if you need to pass additional arguments to amixer. For instance, users with multiple sound cards may define `command = "amixer -c X"` in order to set amixer with card `X`.
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`settings` can use the following variables:
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Variable | Meaning | Type | Values
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--- | --- | --- | ---
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`volume_now.level` | Volume level | int | 0-100
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`volume_now.status` | Device status | string | "on", "off"
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### output table
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Variable | Meaning | Type
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--- | --- | ---
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`widget` | The widget | `wibox.widget.textbox`
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`channel` | Alsa channel | string
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`update` | Update `widget` | function
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You can control the widget with key bindings like these:
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```lua
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-- ALSA volume control
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awful.key({ altkey }, "Up",
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function ()
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os.execute(string.format("amixer set %s 1%%+", volumewidget.channel))
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volumewidget.update()
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end),
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awful.key({ altkey }, "Down",
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function ()
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os.execute(string.format("amixer set %s 1%%-", volumewidget.channel))
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volumewidget.update()
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end),
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awful.key({ altkey }, "m",
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function ()
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os.execute(string.format("amixer set %s toggle", volumewidget.channel))
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volumewidget.update()
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end),
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awful.key({ altkey, "Control" }, "m",
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function ()
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os.execute(string.format("amixer set %s 100%%", volumewidget.channel))
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volumewidget.update()
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end),
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```
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where `altkey = "Mod1"`.
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