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, 7 insertions, 0 deletions

diff --git a/sway/tree/view.c b/sway/tree/view.c
index b23afb97..3698d7d5 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -116,6 +116,13 @@ uint32_t view_get_x11_window_id(struct sway_view *view) {
         }
         return 0;
 }
+
+uint32_t view_get_x11_parent_id(struct sway_view *view) {
+        if (view->impl->get_int_prop) {
+                return view->impl->get_int_prop(view, VIEW_PROP_X11_PARENT_ID);
+        }
+        return 0;
+}
 #endif
 const char *view_get_window_role(struct sway_view *view) {
         if (view->impl->get_string_prop) {