wayland: add XWayland set_hints listener, remove hardcoded initial configure

- Listen for set_hints signal on XWayland surfaces so hints
  (including dockapp initial_state) are available at map time.
- Remove the hardcoded 640x480 initial configure — let clients
  request their own geometry via request_configure.
- Link xcb for future dockapp icon_window operations.

src/Makefile

@@ -541,7 +541,7 @@ LIBEXIF =
 LIBM = -lm
 LIBOBJS = 
 LIBRARY_SEARCH_PATH = -L${libdir} 
-LIBS = 
+LIBS = -lxcb
 LIBTOOL = $(SHELL) $(top_builddir)/libtool
 LIBXINERAMA = -lXinerama 
 LIBXMU = -lXmu

src/backend/wayland/wl_types.h

@@ -46,6 +46,7 @@ struct wl_toplevel_view {
     /* Path 1: geometry listener — keeps scene node in sync when X11 window moves. */
     struct wl_listener           xw_geometry_listener;
     struct wl_listener           xw_request_configure_listener;
+    struct wl_listener           xw_set_hints_listener;
     struct wl_listener           xw_surface_map_listener; /* fires when wlr_surface maps */
     /* Phase 18: scene graph tree for this surface (NULL if scene unavailable). */
     struct wlr_scene_tree    *scene_node;

src/backend/wayland/wl_xwayland.c

@@ -106,6 +106,14 @@ handle_xwayland_request_configure(struct wl_listener *listener, void *data)
         ev->x, ev->y, ev->width, ev->height);
 }
 
+static void
+handle_xwayland_set_hints(struct wl_listener *listener, void *data)
+{
+    (void)listener; (void)data;
+    /* Placeholder: hints are now available on the xw_surface.
+     * wManageWindow reads them via prop_get_wm_hints at map time. */
+}
+
 static void
 handle_xwayland_request_fullscreen(struct wl_listener *listener, void *data)
 {
@@ -254,6 +262,7 @@ handle_xwayland_destroy(struct wl_listener *listener, void *data)
     wl_list_remove(&view->title_listener.link);
     wl_list_remove(&view->request_fullscreen_listener.link);
     wl_list_remove(&view->xw_request_configure_listener.link);
+    wl_list_remove(&view->xw_set_hints_listener.link);
     if (view->xw_surface_map_listener.link.next &&
         view->xw_surface_map_listener.link.next != &view->xw_surface_map_listener.link)
         wl_list_remove(&view->xw_surface_map_listener.link);
@@ -418,6 +427,7 @@ handle_xwayland_new_surface(struct wl_listener *listener, void *data)
     view->title_listener.notify        = handle_xwayland_set_class;
     view->xw_geometry_listener.notify  = handle_xwayland_set_geometry;
     view->xw_request_configure_listener.notify = handle_xwayland_request_configure;
+    view->xw_set_hints_listener.notify = handle_xwayland_set_hints;
     view->request_fullscreen_listener.notify = handle_xwayland_request_fullscreen;
 
     wl_signal_add(&xw->events.associate, &view->map_listener);
@@ -426,6 +436,7 @@ handle_xwayland_new_surface(struct wl_listener *listener, void *data)
     wl_signal_add(&xw->events.set_class,    &view->title_listener);
     wl_signal_add(&xw->events.set_geometry, &view->xw_geometry_listener);
     wl_signal_add(&xw->events.request_configure, &view->xw_request_configure_listener);
+    wl_signal_add(&xw->events.set_hints, &view->xw_set_hints_listener);
     wl_signal_add(&xw->events.request_fullscreen, &view->request_fullscreen_listener);
 
     wl_list_insert(&wl_state.toplevel_list, &view->link);
@@ -449,13 +460,6 @@ handle_xwayland_new_surface(struct wl_listener *listener, void *data)
              xw->class ? xw->class : "(none)",
              xw->title ? xw->title : "(none)",
              xw->x, xw->y);
-
-    {
-        int cw = (xw->width >= 64) ? xw->width : 640;
-        int ch = (xw->height >= 64) ? xw->height : 480;
-        wlr_xwayland_surface_configure(xw,
-            (int16_t)view->x, (int16_t)view->y, cw, ch);
-    }
 }
 
 /* ------------------------------------------------------------------ */