xwayland: populate window_properties in json for views

window_properties is documented to contain a subset of the X11 properties
of a window (its title, class, instance, role, and transient ID). This
commit adds the missing json object from the get_tree output for
xwayland windows only.

This is a follow-up of #2911.

Signed-off-by: Franklin "Snaipe" Mathieu <me@snai.pe>

1 files changed, 23 insertions, 0 deletions

diff --git a/sway/ipc-json.c b/sway/ipc-json.c
index a29647ed..2cd0cb2d 100644
--- a/sway/ipc-json.c
+++ b/sway/ipc-json.c
@@ -266,6 +266,29 @@ static void ipc_json_describe_view(struct sway_container *c, json_object *object
         if (c->view->type == SWAY_VIEW_XWAYLAND) {
                 json_object_object_add(object, "window",
                                 json_object_new_int(view_get_x11_window_id(c->view)));
+
+                json_object *window_props = json_object_new_object();
+
+                json_object_object_add(window_props, "class",
+                                class ? json_object_new_string(class) : NULL);
+                const char *instance = view_get_instance(c->view);
+                json_object_object_add(window_props, "instance",
+                                instance ? json_object_new_string(instance) : NULL);
+                json_object_object_add(window_props, "title",
+                                c->title ? json_object_new_string(c->title) : NULL);
+
+                // the transient_for key is always present in i3's output
+                uint32_t parent_id = view_get_x11_parent_id(c->view);
+                json_object_object_add(window_props, "transient_for",
+                                parent_id ? json_object_new_int(parent_id) : NULL);
+
+                const char *role = view_get_window_role(c->view);
+                if (role) {
+                        json_object_object_add(window_props, "window_role",
+                                        json_object_new_string(role));
+                }
+
+                json_object_object_add(object, "window_properties", window_props);
         }
 #endif
 }