subsurface implementation stubs

1 files changed, 15 insertions, 0 deletions

diff --git a/include/wlr/types/wlr_surface.h b/include/wlr/types/wlr_surface.h
index 87d421e3..eb88a663 100644
--- a/include/wlr/types/wlr_surface.h
+++ b/include/wlr/types/wlr_surface.h
@@ -19,6 +19,12 @@ struct wlr_frame_callback {
 #define WLR_SURFACE_INVALID_TRANSFORM 32
 #define WLR_SURFACE_INVALID_SCALE 64
 
+struct wlr_subsurface {
+	struct wl_resource *resource;
+	struct wlr_surface *surface;
+	struct wlr_surface *parent;
+};
+
 struct wlr_surface_state {
 	uint32_t invalid;
 	struct wl_resource *buffer;
@@ -52,6 +58,9 @@ struct wlr_surface {
 	struct wl_listener compositor_listener; // destroy listener used by compositor
 	void *compositor_data;
 
+	// subsurface properties
+	struct wlr_subsurface *subsurface;
+
 	void *data;
 };
 
@@ -80,4 +89,10 @@ void wlr_surface_get_matrix(struct wlr_surface *surface,
 int wlr_surface_set_role(struct wlr_surface *surface, const char *role,
 		struct wl_resource *error_resource, uint32_t error_code);
 
+/**
+ * Create the subsurface implementation for this surface.
+ */
+void wlr_surface_make_subsurface(struct wlr_surface *surface,
+		struct wlr_surface *parent, uint32_t id);
+
 #endif