get_inputs: add libinput send events mode

Add `libinput_send_events` to the IPC output for `get_inputs` to allow
scripting of mode changes.

sway/ipc-json.c

@@ -11,6 +11,7 @@
 #include "sway/output.h"
 #include "sway/input/input-manager.h"
 #include "sway/input/seat.h"
+#include <wlr/backend/libinput.h>
 #include <wlr/types/wlr_box.h>
 #include <wlr/types/wlr_output.h>
 #include <xkbcommon/xkbcommon.h>
@@ -598,6 +599,26 @@ json_object *ipc_json_describe_input(struct sway_input_device *device) {
 		}
 	}
 
+	if (wlr_input_device_is_libinput(device->wlr_device)) {
+		struct libinput_device *libinput_dev;
+		libinput_dev = wlr_libinput_get_device_handle(device->wlr_device);
+
+		const char *events = "unknown";
+		switch (libinput_device_config_send_events_get_mode(libinput_dev)) {
+		case LIBINPUT_CONFIG_SEND_EVENTS_ENABLED:
+			events = "enabled";
+			break;
+		case LIBINPUT_CONFIG_SEND_EVENTS_DISABLED_ON_EXTERNAL_MOUSE:
+			events = "disabled_on_external_mouse";
+			break;
+		case LIBINPUT_CONFIG_SEND_EVENTS_DISABLED:
+			events = "disabled";
+			break;
+		}
+		json_object_object_add(object, "libinput_send_events",
+				json_object_new_string(events));
+	}
+
 	return object;
 }
 

swaymsg/main.c

@@ -113,7 +113,7 @@ static const char *pretty_type_name(const char *name) {
 }
 
 static void pretty_print_input(json_object *i) {
-	json_object *id, *name, *type, *product, *vendor, *kbdlayout;
+	json_object *id, *name, *type, *product, *vendor, *kbdlayout, *events;
 	json_object_object_get_ex(i, "identifier", &id);
 	json_object_object_get_ex(i, "name", &name);
 	json_object_object_get_ex(i, "type", &type);
@@ -139,6 +139,10 @@ static void pretty_print_input(json_object *i) {
 			json_object_get_string(kbdlayout));
 	}
 
+	if (json_object_object_get_ex(i, "libinput_send_events", &events)) {
+		printf("  Libinput Send Events: %s\n", json_object_get_string(events));
+	}
+
 	printf("\n");
 }