ipc: add an input event

This adds an ipc event related to input devices. Currently the
following changes are supported:
- added: when an input device becomes available
- removed: when an input device is no longer available
- xkb_keymap_changed: (keyboards only) the keymap changed
- xkb_layout_changed: (keyboards only) the effective layout changed

1 files changed, 53 insertions, 0 deletions

diff --git a/sway/sway-ipc.7.scd b/sway/sway-ipc.7.scd
index 3657dcd6..4688e46d 100644
--- a/sway/sway-ipc.7.scd
+++ b/sway/sway-ipc.7.scd
@@ -1371,6 +1371,9 @@ available:
 |- 0x80000014
 :  bar_status_update
 :  Send when the visibility of a bar should change due to a modifier
+|- 0x80000015
+:  input
+:  Sent when something related to input devices changes
 
 
 ## 0x80000000. WORKSPACE
@@ -1702,6 +1705,56 @@ event is a single object with the following properties:
 }
 ```
 
+## 0x80000015. INPUT
+
+Sent when something related to the input devices changes. The event is a single
+object with the following properties:
+
+[- *PROPERTY*
+:- *DATA TYPE*
+:- *DESCRIPTION*
+|- change
+:  string
+:[ What has changed
+|- input
+:  object
+:  An object representing the input that is identical the ones GET_INPUTS gives
+
+The following change types are currently available:
+[- *TYPE*
+:- *DESCRIPTION*
+|- added
+:[ The input device became available
+|- removed
+:  The input device is no longer available
+|- xkb_keymap
+:  (Keyboards only) The keymap for the keyboard has changed
+|- xkb_layout
+:  (Keyboards only) The effective layout in the keymap has changed
+
+*Example Event:*
+```
+{
+        "change": "xkb_layout",
+        "input": {
+                "identifier": "1:1:AT_Translated_Set_2_keyboard",
+                "name": "AT Translated Set 2 keyboard",
+                "vendor": 1,
+                "product": 1,
+                "type": "keyboard",
+                "xkb_layout_names": [
+                        "English (US)",
+                        "English (Dvorak)"
+                ],
+                "xkb_active_layout_index": 1,
+                "xkb_active_layout_name": "English (Dvorak)",
+                "libinput": {
+                        "send_events": "enabled"
+                }
+        }
+}
+```
+
 # SEE ALSO
 
 *sway*(1) *sway*(5) *sway-bar*(5) *swaymsg*(1) *sway-input*(5) *sway-output*(5)