[gtk/deprecate-all-the-cells: 3/9] cssnode: Drop the node-added/-removed signals

[Matthias Clasen <matthiasc src gnome org>]

commit 804cb3dffa1fa198a813ab80de2f92fc0ae4b940
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 7 17:21:04 2022 -0400

    cssnode: Drop the node-added/-removed signals
    
    These are no longer used, and the children-observer
    listmodel is a better approach for monitoring the
    children.

 gtk/gtkcssnode.c | 32 ++------------------------------
 1 file changed, 2 insertions(+), 30 deletions(-)
---
diff --git a/gtk/gtkcssnode.c b/gtk/gtkcssnode.c
index db53aee187..90828866c9 100644
--- a/gtk/gtkcssnode.c
+++ b/gtk/gtkcssnode.c
@@ -98,8 +98,6 @@
 G_DEFINE_TYPE (GtkCssNode, gtk_css_node, G_TYPE_OBJECT)
 
 enum {
-  NODE_ADDED,
-  NODE_REMOVED,
   STYLE_CHANGED,
   LAST_SIGNAL
 };
@@ -567,32 +565,6 @@ gtk_css_node_class_init (GtkCssNodeClass *klass)
   klass->node_removed = gtk_css_node_real_node_removed;
   klass->style_changed = gtk_css_node_real_style_changed;
 
-  cssnode_signals[NODE_ADDED] =
-    g_signal_new (I_("node-added"),
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                  G_STRUCT_OFFSET (GtkCssNodeClass, node_added),
-                 NULL, NULL,
-                 _gtk_marshal_VOID__OBJECT_OBJECT,
-                 G_TYPE_NONE, 2,
-                 GTK_TYPE_CSS_NODE, GTK_TYPE_CSS_NODE);
-  g_signal_set_va_marshaller (cssnode_signals[NODE_ADDED],
-                              G_TYPE_FROM_CLASS (klass),
-                              _gtk_marshal_VOID__OBJECT_OBJECTv);
-
-  cssnode_signals[NODE_REMOVED] =
-    g_signal_new (I_("node-removed"),
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                  G_STRUCT_OFFSET (GtkCssNodeClass, node_removed),
-                 NULL, NULL,
-                 _gtk_marshal_VOID__OBJECT_OBJECT,
-                 G_TYPE_NONE, 2,
-                 GTK_TYPE_CSS_NODE, GTK_TYPE_CSS_NODE);
-  g_signal_set_va_marshaller (cssnode_signals[NODE_REMOVED],
-                              G_TYPE_FROM_CLASS (klass),
-                              _gtk_marshal_VOID__OBJECT_OBJECTv);
-
   cssnode_signals[STYLE_CHANGED] =
     g_signal_new (I_("style-changed"),
                  G_TYPE_FROM_CLASS (object_class),
@@ -742,7 +714,7 @@ gtk_css_node_reposition (GtkCssNode *node,
 
   if (old_parent != NULL)
     {
-      g_signal_emit (old_parent, cssnode_signals[NODE_REMOVED], 0, node, node->previous_sibling);
+      GTK_CSS_NODE_GET_CLASS (old_parent)->node_removed (old_parent, node, node->previous_sibling);
       if (old_parent->first_child && node->visible)
         gtk_css_node_invalidate (old_parent->first_child, GTK_CSS_CHANGE_NTH_LAST_CHILD);
     }
@@ -779,7 +751,7 @@ gtk_css_node_reposition (GtkCssNode *node,
 
   if (new_parent)
     {
-      g_signal_emit (new_parent, cssnode_signals[NODE_ADDED], 0, node, previous);
+      GTK_CSS_NODE_GET_CLASS (new_parent)->node_added (new_parent, node, previous);
       if (node->visible)
         gtk_css_node_invalidate (new_parent->first_child, GTK_CSS_CHANGE_NTH_LAST_CHILD);
     }