neodotfiles/.config/awesome/lain/wiki/moc.md
Clay Gomera 84a27f2f7f updated
2022-01-13 23:48:37 -04:00

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## Usage
[Read here.](https://github.com/lcpz/lain/wiki/Widgets#usage)
### Description
A widget for showing the current song track's information from MOC (Music On Console).
```lua
local mymoc = lain.widget.contrib.moc()
```
Now playing songs are notified like this:
+--------------------------------------------------------+
| +-------+ |
| |/^\_/^\| Now playing |
| |\ O O /| Cannibal Corpse (Hammer Smashed Face) - 1993 |
| | '.o.' | Hammer Smashed Face (Radio Disney Version) |
| +-------+ |
+--------------------------------------------------------+
## Input table
Variable | Meaning | Type | Default
--- | --- | --- | ---
`timeout` | Refresh timeout (in seconds) | integer | 1
`music_dir` | Music directory | string | "~/Music"
`cover_size` | Album art notification size (both height and width) | integer | 100
`cover_pattern` | Pattern for the album art file | string | `*\\.(jpg|jpeg|png|gif)`*
`default_art` | Default art | string | ""
`followtag` | Display the notification on currently focused screen | boolean | false
`settings` | User settings | function | empty function
\* In Lua, "\\\\" means "\" escaped.
Default `cover_pattern` definition will made the widget set the first jpg, jpeg, png or gif file found in the directory as the album art.
Pay attention to case sensitivity when defining `music_dir`.
`settings` can use `moc_now` table, which contains the following string values:
- state (possible values: "PLAY", "PAUSE", "STOP")
- file
- artist
- title
- album
- elapsed (Time elapsed for the current track)
- total (The current track's total time)
and can modify `moc_notification_preset` table, which will be the preset for the naughty notifications. Check [here](https://awesomewm.org/apidoc/libraries/naughty.html#notify) for the list of variables it can contain. Default definition:
```lua
moc_notification_preset = {
title = "Now playing",
timeout = 6,
text = string.format("%s (%s) - %s\n%s", moc_now.artist,
moc_now.album, moc_now.elapsed, moc_now.title)
}
```
With multiple screens, the default behaviour is to show a visual notification pop-up window on the first screen. By setting `followtag` to `true` it will be shown on the currently focused tag screen.
## Output table
Variable | Meaning | Type
--- | --- | ---
`widget` | The widget | `wibox.widget.textbox`
`update` | Update `widget` | function
`timer` | The widget timer | [`gears.timer`](https://awesomewm.org/doc/api/classes/gears.timer.html)
The `update` function can be used to refresh the widget before `timeout` expires.
You can use `timer` to start/stop the widget as you like.
## Keybindings
You can control the widget with key bindings like these:
```lua
-- MOC control
awful.key({ altkey, "Control" }, "Up",
function ()
os.execute("mocp -G") -- toggle
moc.update()
end),
awful.key({ altkey, "Control" }, "Down",
function ()
os.execute("mocp -s") -- stop
moc.update()
end),
awful.key({ altkey, "Control" }, "Left",
function ()
os.execute("mocp -r") -- previous
moc.update()
end),
awful.key({ altkey, "Control" }, "Right",
function ()
os.execute("mocp -f") -- next
moc.update()
end),
```
where `altkey = "Mod1"`.
If you don't use the widget for long periods and wish to spare CPU, you can toggle it with a keybinding like this:
```lua
-- toggle MOC widget
awful.key({ altkey }, "0",
function ()
local common = { text = "MOC widget ", position = "top_middle", timeout = 2 }
if moc.timer.started then
moc.timer:stop()
common.text = common.text .. markup.bold("OFF")
else
moc.timer:start()
common.text = common.text .. markup.bold("ON")
end
naughty.notify(common)
end),
```