1 files changed, 14 insertions, 0 deletions

diff --git a/sway/ipc-json.c b/sway/ipc-json.c
index 213c8fb6..977f1ecb 100644
--- a/sway/ipc-json.c
+++ b/sway/ipc-json.c
@@ -78,6 +78,20 @@ static void ipc_json_describe_output(swayc_t *container, json_object *object) {
                 json_object_new_string(ipc_json_get_output_transform(wlr_output->transform)));
         // TODO WLR need to set "current_workspace" to the currently focused
         // workspace in a way that makes sense with multiseat
+
+        json_object *modes_array = json_object_new_array();
+        struct wlr_output_mode *mode;
+        wl_list_for_each(mode, &wlr_output->modes, link) {
+                json_object *mode_object = json_object_new_object();
+                json_object_object_add(mode_object, "width",
+                        json_object_new_int(mode->width));
+                json_object_object_add(mode_object, "height",
+                        json_object_new_int(mode->height));
+                json_object_object_add(mode_object, "refresh",
+                        json_object_new_int(mode->refresh));
+                json_object_array_add(modes_array, mode_object);
+        }
+        json_object_object_add(object, "modes", modes_array);
 }
 
 static void ipc_json_describe_workspace(swayc_t *workspace, json_object *object) {