xwayland: set the surface title when running rootful

Set a meaningful title for the xdg_surface, it's nicer when running
rootful.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

hw/xwayland/xwayland-input.c

@@ -987,6 +987,7 @@ static void
 maybe_toggle_fake_grab(struct xwl_seat *xwl_seat, uint32_t key)
 {
     struct xwl_screen *xwl_screen = xwl_seat->xwl_screen;
+    struct xwl_window *xwl_window;
     XkbStateRec state_rec;
     uint32_t xkb_state;
 
@@ -1008,6 +1009,10 @@ maybe_toggle_fake_grab(struct xwl_seat *xwl_seat, uint32_t key)
             maybe_fake_grab_devices(xwl_seat);
         else
             maybe_fake_ungrab_devices(xwl_seat);
+
+        xwl_window = xwl_window_get(xwl_screen->screen->root);
+        if (xwl_window)
+            xwl_window_rootful_update_title(xwl_window);
     }
 }
 

hw/xwayland/xwayland-window.c

@@ -469,6 +469,26 @@ xwl_window_set_fullscreen(struct xwl_window *xwl_window)
     return TRUE;
 }
 
+void
+xwl_window_rootful_update_title(struct xwl_window *xwl_window)
+{
+    struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
+    char title[128];
+    const char *grab_message = "";
+
+    if (xwl_screen->host_grab) {
+        if (xwl_screen->has_grab)
+            grab_message = " - ([ctrl]+[shift] releases mouse and keyboard)";
+        else
+            grab_message = " - ([ctrl]+[shift] grabs mouse and keyboard)";
+    }
+
+    snprintf(title, sizeof(title), "Xwayland on :%s%s", display, grab_message);
+
+    if (xwl_window->xdg_toplevel)
+        xdg_toplevel_set_title(xwl_window->xdg_toplevel, title);
+}
+
 static void
 xdg_surface_handle_configure(void *data,
                              struct xdg_surface *xdg_surface,
@@ -547,6 +567,8 @@ xwl_create_root_surface(struct xwl_window *xwl_window)
     xdg_surface_add_listener(xwl_window->xdg_surface,
                              &xdg_surface_listener, xwl_window);
 
+    xwl_window_rootful_update_title(xwl_window);
+
     wl_surface_commit(xwl_window->surface);
 
     region = wl_compositor_create_region(xwl_screen->compositor);

hw/xwayland/xwayland-window.h

@@ -68,8 +68,10 @@ void xwl_window_update_property(struct xwl_window *xwl_window,
 Bool xwl_window_has_viewport_enabled(struct xwl_window *xwl_window);
 Bool xwl_window_is_toplevel(WindowPtr window);
 void xwl_window_check_resolution_change_emulation(struct xwl_window *xwl_window);
+void xwl_window_rootful_update_title(struct xwl_window *xwl_window);
 
 void xwl_window_set_window_pixmap(WindowPtr window, PixmapPtr pixmap);
+
 Bool xwl_realize_window(WindowPtr window);
 Bool xwl_unrealize_window(WindowPtr window);
 Bool xwl_change_window_attributes(WindowPtr window, unsigned long mask);