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, 5 insertions, 0 deletions

diff --git a/sway/desktop/xwayland.c b/sway/desktop/xwayland.c
index b8ac8434..a8fbd574 100644
--- a/sway/desktop/xwayland.c
+++ b/sway/desktop/xwayland.c
@@ -171,6 +171,11 @@ static uint32_t get_int_prop(struct sway_view *view, enum sway_view_prop prop) {
         switch (prop) {
         case VIEW_PROP_X11_WINDOW_ID:
                 return view->wlr_xwayland_surface->window_id;
+        case VIEW_PROP_X11_PARENT_ID:
+                if (view->wlr_xwayland_surface->parent) {
+                        return view->wlr_xwayland_surface->parent->window_id;
+                }
+                return 0;
         case VIEW_PROP_WINDOW_TYPE:
                 return *view->wlr_xwayland_surface->window_type;
         default: