awesome-wm-widgets/_widgets/volume-widget.md

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# Volume widget

Volume widget based on [amixer](https://linux.die.net/man/1/amixer) (is used for controlling the audio volume) and [pacmd](https://linux.die.net/man/1/pacmd) (is used for selecting a sink/source). Also, the widget provides an easy way to customize how it looks, following types are supported out-of-the-box:

![types](screenshots/variations.png)

From left to right: `horizontal_bar`, `vertical_bar`, `icon`, `icon_and_text`, `arc`

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 click on the widget;
 - more responsive than previous versions of volume widget, which were refreshed once a second;
 - 5 predefined customizable looks;

## Installation

Clone the repo under **~/.config/awesome/** and add widget in **rc.lua**:

```lua
local volume_widget = require('awesome-wm-widgets.volume-widget.volume')
...
s.mytasklist, -- Middle widget
	{ -- Right widgets
    	layout = wibox.layout.fixed.horizontal,
        ...
        -- default
        volume_widget(),
        -- customized
        volume_widget{
            widget_type = 'arc'
        },
```

Note that widget uses following command the get the current volume: `amixer -D pulse sget Master`, so please make sure that it works for you, otherwise you need to set parameter `device = 'default'`.

### Shortcuts

To improve responsiveness of the widget when volume level is changed by a shortcut use corresponding methods of the widget:

```lua
awful.key({ modkey }, "]", function() volume_widget:inc(5) end),
awful.key({ modkey }, "[", function() volume_widget:dec(5) end),
awful.key({ modkey }, "\\", function() volume_widget:toggle() end),
```

## Customization

It is possible to customize the widget by providing a table with all or some of the following config parameters:

### Generic parameter

| Name | Default | Description |
|---|---|---|
| `mixer_cmd` | `pavucontrol` | command to run on middle click (e.g. a mixer program) |
| `step` | `5` | How much the volume is raised or lowered at once (in %) |
| `widget_type`| `icon_and_text`| Widget type, one of `horizontal_bar`, `vertical_bar`, `icon`, `icon_and_text`, `arc` |
| `device` | `pulse` | Select the device name to control |

Depends on the chosen widget type add parameters from the corresponding section below:

#### `icon` parameters

| Name | Default | Description |
|---|---|---|
| `icon_dir`| `./icons`| Path to the folder with icons | 

_Note:_ if you are changing icons, the folder should contain following .svg images: 
 - audio-volume-high-symbolic
 - audio-volume-medium-symbolic
 - audio-volume-low-symbolic
 - audio-volume-muted-symbolic

#### `icon_and_text` parameters

| Name | Default | Description |
|---|---|---|
| `icon_dir`| `./icons`| Path to the folder with icons | 
| `font` | `beautiful.font` | Font name and size, like `Play 12` |

#### `arc` parameters

| Name | Default | Description |
|---|---|---|
| `thickness` | 2 | Thickness of the arc |
| `main_color` | `beautiful.fg_color` | Color of the arc |
| `bg_color` | `#ffffff11` | Color of the arc's background |
| `mute_color` | `beautiful.fg_urgent` | Color of the arc when mute |
| `size` | 18 | Size of the widget |

#### `horizontal_bar` parameters

| Name | Default | Description |
|---|---|---|
| `main_color` | `beautiful.fg_normal` | Color of the bar |
| `mute_color` | `beautiful.fg_urgent` | Color of the bar when mute |
| `bg_color` | `'#ffffff11'` | Color of the bar's background |
| `width` | `50` | The bar width |
| `margins` | `10` | Top and bottom margins (if your wibar is 22 px high, bar will be 2 px = 22 - 2*10) |
| `shape` | `'bar'` | [gears.shape](https://awesomewm.org/doc/api/libraries/gears.shape.html), could be `octogon`, `hexagon`, `powerline`, etc |
| `with_icon` | `true` | Show volume icon|

_Note:_ I didn't figure out how does the `forced_height` property of progressbar widget work (maybe it doesn't work at all), thus there is a workaround with margins.

#### `vertical_bar` parameters

| Name | Default | Description |
|---|---|---|
| `main_color` | `beautiful.fg_normal` | Color of the bar |
| `mute_color` | `beautiful.fg_urgent` | Color of the bar when mute |
| `bg_color` | `'#ffffff11'` | Color of the bar's background |
| `width` | `10` | The bar width |
| `margins` | `20` | Top and bottom margins (if your wibar is 22 px high, bar will be 2 px = 22 - 2*10) |
| `shape` | `'bar'` | [gears.shape](https://awesomewm.org/doc/api/libraries/gears.shape.html), could be `octogon`, `hexagon`, `powerline`, etc |
| `with_icon` | `true` | Show volume icon|