ipc: add "power" to output reply

sway/ipc-json.c

@@ -277,6 +277,8 @@ static void ipc_json_describe_enabled_output(struct sway_output *output,
 	json_object_object_add(object, "active", json_object_new_boolean(true));
 	json_object_object_add(object, "dpms",
 			json_object_new_boolean(wlr_output->enabled));
+	json_object_object_add(object, "power",
+			json_object_new_boolean(wlr_output->enabled));
 	json_object_object_add(object, "layout", json_object_new_string("output"));
 	json_object_object_add(object, "orientation",
 			json_object_new_string(
@@ -354,6 +356,7 @@ json_object *ipc_json_describe_disabled_output(struct sway_output *output) {
 			json_object_new_string(wlr_output->name));
 	json_object_object_add(object, "active", json_object_new_boolean(false));
 	json_object_object_add(object, "dpms", json_object_new_boolean(false));
+	json_object_object_add(object, "power", json_object_new_boolean(false));
 
 	json_object_object_add(object, "current_workspace", NULL);
 

sway/sway-ipc.7.scd

@@ -213,7 +213,10 @@ following properties:
 :  Whether this output is active/enabled
 |- dpms
 :  boolean
-:  Whether this output is on/off (via DPMS)
+:  (Deprecated, use _power_ instead) Whether this output is on/off (via DPMS)
+|- power
+:  boolean
+:  Whether this output is on/off
 |- primary
 :  boolean
 :  For i3 compatibility, this will be false. It does not make sense in Wayland