niri/wiki/Configuration:-Input.md

### Overview

In this section you can configure input devices like keyboard and mouse, and some input-related options.

There's a section for each device type: `keyboard`, `touchpad`, `mouse`, `trackpoint`, `tablet`, `touch`.
Settings in those sections will apply to every device of that type.
Currently, there's no way to configure specific devices individually (but that is planned).

All settings at a glance:

```
input {
    keyboard {
        xkb {
            // layout "us"
            // variant "colemak_dh_ortho"
            // options "compose:ralt,ctrl:nocaps"
            // model ""
            // rules ""
        }

        // repeat-delay 600
        // repeat-rate 25
        // track-layout "global"
    }

    touchpad {
        tap
        // dwt
        // dwtp
        natural-scroll
        // accel-speed 0.2
        // accel-profile "flat"
        // tap-button-map "left-middle-right"
        // click-method "clickfinger"
    }

    mouse {
        // natural-scroll
        // accel-speed 0.2
        // accel-profile "flat"
    }

    trackpoint {
        // natural-scroll
        // accel-speed 0.2
        // accel-profile "flat"
    }

    tablet {
        map-to-output "eDP-1"
    }

    touch {
        map-to-output "eDP-1"
    }

    // disable-power-key-handling
    // warp-mouse-to-focus
    // focus-follows-mouse
    // workspace-auto-back-and-forth
}
```

### Keyboard

#### Layout

In the `xkb` section, you can set layout, variant, options, model and rules.
These are passed directly to libxkbcommon, which is also used by most other Wayland compositors.
See the `xkeyboard-config(7)` manual for more information.

```
input {
    keyboard {
        xkb {
            layout "us"
            variant "colemak_dh_ortho"
            options "compose:ralt,ctrl:nocaps"
        }
    }
}
```

When using multiple layouts, niri can remember the current layout globally (the default) or per-window.
You can control this with the `track-layout` option.

- `global`: layout change is global for all windows.
- `window`: layout is tracked for each window individually.

```
input {
    keyboard {
        track-layout "global"
    }
}
```

#### Repeat

Delay is in milliseconds before the keyboard repeat starts.
Rate is in characters per second.

```
input {
    keyboard {
        repeat-delay 600
        repeat-rate 25
    }
}
```

### Pointing Devices

Most settings for the pointing devices are passed directly to libinput.
Other Wayland compositors also use libinput, so it's likely you will find the same settings there.
For flags like `tap`, omit them or comment them out to disable the setting.

A few settings are common between `touchpad`, `mouse` and `trackpoint`:

- `natural-scroll`: if set, inverts the scrolling direction.
- `accel-speed`: pointer acceleration speed, valid values are from `-1.0` to `1.0` where the default is `0.0`.
- `accel-profile`: can be `adaptive` (the default) or `flat` (disables pointer acceleration).

Settings specific to `touchpad`s:

- `tap`: tap-to-click.
- `dwt`: disable-when-typing.
- `dwtp`: disable-when-trackpointing.
- `tap-button-map`: can be `left-right-middle` or `left-middle-right`, controls which button corresponds to a two-finger tap and a three-finger tap.
- `click-method`: can be `button-areas` or `clickfinger`, changes the [click method](https://wayland.freedesktop.org/libinput/doc/latest/clickpad-softbuttons.html).

Tablets and touchscreens are absolute pointing devices that can be mapped to a specific output like so:

```
input {
    tablet {
        map-to-output "eDP-1"
    }

    touch {
        map-to-output "eDP-1"
    }
}
```

Valid output names are the same as the ones used for output configuration.

### General Settings

These settings are not specific to a particular input device.

#### `disable-power-key-handling`

By default, niri will take over the power button to make it sleep instead of power off.
Set this if you would like to configure the power button elsewhere (i.e. `logind.conf`).

```
input {
    disable-power-key-handling
}
```

#### `warp-mouse-to-focus`

Makes the mouse warp to newly focused windows.

X and Y coordinates are computed separately, i.e. if moving the mouse only horizontally is enough to put it inside the newly focused window, then it will move only horizontally.

```
input {
    warp-mouse-to-focus
}
```

#### `focus-follows-mouse`

Focuses windows and outputs automatically when moving the mouse over them.

```
input {
    focus-follows-mouse
}
```

#### `workspace-auto-back-and-forth`

If enabled, switching to the same workspace by index twice will switch back to the previous workspace.

```
input {
    workspace-auto-back-and-forth
}
```