Support WLR_INPUT_DEVICE_SWITCH in sway

This commit adds support for laptop lid and tablet
mode switches as provided by evdev/libinput and
handled by wlroots.

Adds a new bindswitch command with syntax:
bindswitch <switch>:<state> <command>

Where <switch> is one of:
tablet for WLR_SWITCH_TYPE_TABLET_MODE
lid for WLR_SWITCH_TYPE_LID

<state> is one of:
on for WLR_SWITCH_STATE_ON
off for WLR_SWITCH_STATE_OFF
toggle for WLR_SWITCH_STATE_TOGGLE

(Note that WLR_SWITCH_STATE_TOGGLE doesn't map to
libinput and will trigger at both on and off events)

1 files changed, 1 insertions, 0 deletions

diff --git a/include/sway/input/seat.h b/include/sway/input/seat.h
index a5361e8c..f2af1066 100644
--- a/include/sway/input/seat.h
+++ b/include/sway/input/seat.h
@@ -27,6 +27,7 @@ struct sway_seat_device {
         struct sway_seat *sway_seat;
         struct sway_input_device *input_device;
         struct sway_keyboard *keyboard;
+        struct sway_switch *switch_device;
         struct wl_list link; // sway_seat::devices
 };