backend: Rename update_screen_size() to update_stage()

We don't only update the size of the screen / stage, but also regenerate
views etc. Make this a bit more obvious by renaming the function to
update_stage().

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3443>

src/backends/meta-backend-private.h

@@ -100,7 +100,7 @@ struct _MetaBackendClass
   void (* lock_layout_group) (MetaBackend *backend,
                               guint        idx);
 
-  void (* update_screen_size) (MetaBackend *backend, int width, int height);
+  void (* update_stage) (MetaBackend *backend);
   void (* select_stage_events) (MetaBackend *backend);
 
   void (* set_pointer_constraint) (MetaBackend           *backend,

src/backends/meta-backend.c

@@ -265,14 +265,9 @@ meta_backend_destroy (MetaBackend *backend)
 }
 
 static void
-meta_backend_sync_screen_size (MetaBackend *backend)
+meta_backend_update_stage (MetaBackend *backend)
 {
-  MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
+  META_BACKEND_GET_CLASS (backend)->update_stage (backend);
-  int width, height;
-
-  meta_monitor_manager_get_screen_size (priv->monitor_manager, &width, &height);
-
-  META_BACKEND_GET_CLASS (backend)->update_screen_size (backend, width, height);
 }
 
 static void
@@ -347,7 +342,7 @@ update_cursors (MetaBackend *backend)
 void
 meta_backend_monitors_changed (MetaBackend *backend)
 {
-  meta_backend_sync_screen_size (backend);
+  meta_backend_update_stage (backend);
   update_cursors (backend);
 }
 
@@ -546,7 +541,7 @@ meta_backend_real_post_init (MetaBackend *backend)
 
   meta_monitor_manager_setup (priv->monitor_manager);
 
-  meta_backend_sync_screen_size (backend);
+  meta_backend_update_stage (backend);
 
   priv->idle_manager = meta_idle_manager_new (backend);
 

src/backends/native/meta-backend-native.c

@@ -450,16 +450,19 @@ meta_backend_native_set_pointer_constraint (MetaBackend           *backend,
 }
 
 static void
-meta_backend_native_update_screen_size (MetaBackend *backend,
+meta_backend_native_update_stage (MetaBackend *backend)
-                                        int width, int height)
 {
   ClutterActor *stage = meta_backend_get_stage (backend);
   ClutterStageWindow *stage_window =
     _clutter_stage_get_window (CLUTTER_STAGE (stage));
   MetaStageNative *stage_native = META_STAGE_NATIVE (stage_window);
+  MetaMonitorManager *monitor_manager =
+    meta_backend_get_monitor_manager (backend);
+  int width, height;
 
   meta_stage_native_rebuild_views (stage_native);
 
+  meta_monitor_manager_get_screen_size (monitor_manager, &width, &height);
   clutter_actor_set_size (stage, width, height);
 }
 
@@ -899,7 +902,7 @@ meta_backend_native_class_init (MetaBackendNativeClass *klass)
   backend_class->get_keymap = meta_backend_native_get_keymap;
   backend_class->get_keymap_layout_group = meta_backend_native_get_keymap_layout_group;
   backend_class->lock_layout_group = meta_backend_native_lock_layout_group;
-  backend_class->update_screen_size = meta_backend_native_update_screen_size;
+  backend_class->update_stage = meta_backend_native_update_stage;
 
   backend_class->set_pointer_constraint = meta_backend_native_set_pointer_constraint;
 

src/backends/x11/cm/meta-backend-x11-cm.c

@@ -183,14 +183,16 @@ meta_backend_x11_cm_get_input_settings (MetaBackend *backend)
 }
 
 static void
-meta_backend_x11_cm_update_screen_size (MetaBackend *backend,
+meta_backend_x11_cm_update_stage (MetaBackend *backend)
-                                        int          width,
-                                        int          height)
 {
   MetaBackendX11 *x11 = META_BACKEND_X11 (backend);
   Display *xdisplay = meta_backend_x11_get_xdisplay (x11);
   Window xwin = meta_backend_x11_get_xwindow (x11);
+  MetaMonitorManager *monitor_manager =
+    meta_backend_get_monitor_manager (backend);
+  int width, height;
 
+  meta_monitor_manager_get_screen_size (monitor_manager, &width, &height);
   XResizeWindow (xdisplay, xwin, width, height);
 }
 
@@ -543,7 +545,7 @@ meta_backend_x11_cm_class_init (MetaBackendX11CmClass *klass)
   backend_class->get_cursor_renderer = meta_backend_x11_cm_get_cursor_renderer;
   backend_class->create_cursor_tracker = meta_backend_x11_cm_create_cursor_tracker;
   backend_class->get_input_settings = meta_backend_x11_cm_get_input_settings;
-  backend_class->update_screen_size = meta_backend_x11_cm_update_screen_size;
+  backend_class->update_stage = meta_backend_x11_cm_update_stage;
   backend_class->select_stage_events = meta_backend_x11_cm_select_stage_events;
   backend_class->lock_layout_group = meta_backend_x11_cm_lock_layout_group;
   backend_class->set_keymap = meta_backend_x11_cm_set_keymap;

src/backends/x11/nested/meta-backend-x11-nested.c

@@ -102,15 +102,18 @@ meta_backend_x11_nested_get_input_settings (MetaBackend *backend)
 }
 
 static void
-meta_backend_x11_nested_update_screen_size (MetaBackend *backend,
+meta_backend_x11_nested_update_stage (MetaBackend *backend)
-                                            int          width,
-                                            int          height)
 {
   ClutterActor *stage = meta_backend_get_stage (backend);
   MetaRenderer *renderer = meta_backend_get_renderer (backend);
+  MetaMonitorManager *monitor_manager =
+    meta_backend_get_monitor_manager (backend);
+  int width, height;
 
   meta_renderer_rebuild_views (renderer);
   clutter_stage_clear_stage_views (CLUTTER_STAGE (stage));
+
+  meta_monitor_manager_get_screen_size (monitor_manager, &width, &height);
   clutter_actor_set_size (stage, width, height);
 }
 
@@ -320,7 +323,7 @@ meta_backend_x11_nested_class_init (MetaBackendX11NestedClass *klass)
   backend_class->create_monitor_manager = meta_backend_x11_nested_create_monitor_manager;
   backend_class->get_cursor_renderer = meta_backend_x11_nested_get_cursor_renderer;
   backend_class->get_input_settings = meta_backend_x11_nested_get_input_settings;
-  backend_class->update_screen_size = meta_backend_x11_nested_update_screen_size;
+  backend_class->update_stage = meta_backend_x11_nested_update_stage;
   backend_class->select_stage_events = meta_backend_x11_nested_select_stage_events;
   backend_class->lock_layout_group = meta_backend_x11_nested_lock_layout_group;
   backend_class->set_keymap = meta_backend_x11_nested_set_keymap;