[gtk+/wip/cssnode3: 28/91] cssnode: Change way invalidation is handled



commit 2b4874607ef98e341292fec490593b5b8f63c411
Author: Benjamin Otte <otte redhat com>
Date:   Sat Feb 7 17:19:07 2015 +0100

    cssnode: Change way invalidation is handled
    
    Have a queue_validate() vfunc and a dequeue_validate() vfunc that are
    called only on root nodes so they can queue a validation on their frame
    clocks.

 gtk/gtkcssnode.c          |   54 +++++++++++++++++++++++++++++++++++++++-----
 gtk/gtkcssnodeprivate.h   |    4 +-
 gtk/gtkcsspathnode.c      |    8 ------
 gtk/gtkcsstransientnode.c |    8 ------
 gtk/gtkcsswidgetnode.c    |   11 ++------
 5 files changed, 52 insertions(+), 33 deletions(-)
---
diff --git a/gtk/gtkcssnode.c b/gtk/gtkcssnode.c
index db68349..9d7c0cb 100644
--- a/gtk/gtkcssnode.c
+++ b/gtk/gtkcssnode.c
@@ -37,9 +37,26 @@ gtk_css_node_set_invalid (GtkCssNode *node,
   if (node->invalid == invalid)
     return;
 
-  GTK_CSS_NODE_GET_CLASS (node)->set_invalid (node, invalid);
+  if (GTK_IS_CSS_TRANSIENT_NODE (node))
+    return;
+
+  node->invalid = invalid;
+
+  if (node->parent)
+    {
+      if (invalid)
+        gtk_css_node_set_invalid (node->parent, TRUE);
+    }
+  else
+    {
+      if (invalid)
+        GTK_CSS_NODE_GET_CLASS (node)->queue_validate (node);
+      else
+        GTK_CSS_NODE_GET_CLASS (node)->dequeue_validate (node);
+    }
 }
 
+
 static void
 gtk_css_node_dispose (GObject *object)
 {
@@ -50,6 +67,8 @@ gtk_css_node_dispose (GObject *object)
       gtk_css_node_set_parent (cssnode->first_child, NULL);
     }
 
+  gtk_css_node_set_invalid (cssnode, FALSE);
+
   G_OBJECT_CLASS (gtk_css_node_parent_class)->dispose (object);
 }
 
@@ -261,13 +280,13 @@ gtk_css_node_real_invalidate (GtkCssNode *node)
 }
 
 static void
-gtk_css_node_real_set_invalid (GtkCssNode *node,
-                               gboolean    invalid)
+gtk_css_node_real_queue_validate (GtkCssNode *node)
 {
-  node->invalid = invalid;
+}
 
-  if (invalid && node->parent)
-    gtk_css_node_set_invalid (node->parent, invalid);
+static void
+gtk_css_node_real_dequeue_validate (GtkCssNode *node)
+{
 }
 
 static GtkBitmask *
@@ -311,7 +330,8 @@ gtk_css_node_class_init (GtkCssNodeClass *klass)
   klass->update_style = gtk_css_node_real_update_style;
   klass->invalidate = gtk_css_node_real_invalidate;
   klass->validate = gtk_css_node_real_validate;
-  klass->set_invalid = gtk_css_node_real_set_invalid;
+  klass->queue_validate = gtk_css_node_real_queue_validate;
+  klass->dequeue_validate = gtk_css_node_real_dequeue_validate;
   klass->create_widget_path = gtk_css_node_real_create_widget_path;
   klass->get_widget_path = gtk_css_node_real_get_widget_path;
   klass->get_style_provider = gtk_css_node_real_get_style_provider;
@@ -325,6 +345,20 @@ gtk_css_node_init (GtkCssNode *cssnode)
   cssnode->style = g_object_ref (gtk_css_static_style_get_default ());
 }
 
+static void
+gtk_css_node_parent_was_unset (GtkCssNode *node)
+{
+  if (node->invalid)
+    GTK_CSS_NODE_GET_CLASS (node)->queue_validate (node);
+}
+
+static void
+gtk_css_node_parent_will_be_set (GtkCssNode *node)
+{
+  if (node->invalid)
+    GTK_CSS_NODE_GET_CLASS (node)->dequeue_validate (node);
+}
+
 void
 gtk_css_node_set_parent (GtkCssNode *node,
                          GtkCssNode *parent)
@@ -357,10 +391,16 @@ gtk_css_node_set_parent (GtkCssNode *node,
       node->previous_sibling = NULL;
 
       g_object_unref (node);
+
+      if (parent == NULL)
+        gtk_css_node_parent_was_unset (node);
     }
 
   if (parent)
     {
+      if (node->parent == NULL)
+        gtk_css_node_parent_will_be_set (node);
+
       node->parent = parent;
 
       if (!GTK_IS_CSS_TRANSIENT_NODE (node))
diff --git a/gtk/gtkcssnodeprivate.h b/gtk/gtkcssnodeprivate.h
index d368a50..45fe926 100644
--- a/gtk/gtkcssnodeprivate.h
+++ b/gtk/gtkcssnodeprivate.h
@@ -63,8 +63,8 @@ struct _GtkCssNodeClass
                                                          GtkCssChange           pending_changes,
                                                          GtkCssStyle           *old_style);
   void                  (* invalidate)                  (GtkCssNode            *node);
-  void                  (* set_invalid)                 (GtkCssNode            *node,
-                                                         gboolean               invalid);
+  void                  (* queue_validate)              (GtkCssNode            *node);
+  void                  (* dequeue_validate)            (GtkCssNode            *node);
   GtkBitmask *          (* validate)                    (GtkCssNode            *cssnode,
                                                          gint64                 timestamp,
                                                          GtkCssChange           change,
diff --git a/gtk/gtkcsspathnode.c b/gtk/gtkcsspathnode.c
index a92743c..1e50182 100644
--- a/gtk/gtkcsspathnode.c
+++ b/gtk/gtkcsspathnode.c
@@ -47,13 +47,6 @@ gtk_css_path_node_invalidate (GtkCssNode *node)
     }
 }
 
-static void
-gtk_css_path_node_set_invalid (GtkCssNode *node,
-                               gboolean    invalid)
-{
-  /* path nodes are always valid */
-}
-
 static GtkWidgetPath *
 gtk_css_path_node_real_create_widget_path (GtkCssNode *node)
 {
@@ -105,7 +98,6 @@ gtk_css_path_node_class_init (GtkCssPathNodeClass *klass)
   object_class->finalize = gtk_css_path_node_finalize;
 
   node_class->invalidate = gtk_css_path_node_invalidate;
-  node_class->set_invalid = gtk_css_path_node_set_invalid;
   node_class->create_widget_path = gtk_css_path_node_real_create_widget_path;
   node_class->get_widget_path = gtk_css_path_node_real_get_widget_path;
   node_class->get_style_provider = gtk_css_path_node_get_style_provider;
diff --git a/gtk/gtkcsstransientnode.c b/gtk/gtkcsstransientnode.c
index f2602e5..723c97a 100644
--- a/gtk/gtkcsstransientnode.c
+++ b/gtk/gtkcsstransientnode.c
@@ -22,13 +22,6 @@
 
 G_DEFINE_TYPE (GtkCssTransientNode, gtk_css_transient_node, GTK_TYPE_CSS_NODE)
 
-static void
-gtk_css_transient_node_set_invalid (GtkCssNode *node,
-                                    gboolean    invalid)
-{
-  /* transient nodes are always valid */
-}
-
 static GtkWidgetPath *
 gtk_css_transient_node_create_widget_path (GtkCssNode *node)
 {
@@ -64,7 +57,6 @@ gtk_css_transient_node_class_init (GtkCssTransientNodeClass *klass)
 {
   GtkCssNodeClass *node_class = GTK_CSS_NODE_CLASS (klass);
 
-  node_class->set_invalid = gtk_css_transient_node_set_invalid;
   node_class->create_widget_path = gtk_css_transient_node_create_widget_path;
   node_class->get_widget_path = gtk_css_transient_node_get_widget_path;
 }
diff --git a/gtk/gtkcsswidgetnode.c b/gtk/gtkcsswidgetnode.c
index 794d5de..cb46bb2 100644
--- a/gtk/gtkcsswidgetnode.c
+++ b/gtk/gtkcsswidgetnode.c
@@ -40,17 +40,12 @@ gtk_css_widget_node_update_style (GtkCssNode   *cssnode,
 }
 
 static void
-gtk_css_widget_node_set_invalid (GtkCssNode *node,
-                                 gboolean    invalid)
+gtk_css_widget_node_queue_validate (GtkCssNode *node)
 {
   GtkCssWidgetNode *widget_node = GTK_CSS_WIDGET_NODE (node);
 
-  GTK_CSS_NODE_CLASS (gtk_css_widget_node_parent_class)->set_invalid (node, invalid);
-
   G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-  if (invalid && 
-      gtk_css_node_get_parent (node) == NULL &&
-      GTK_IS_RESIZE_CONTAINER (widget_node->widget))
+  if (GTK_IS_RESIZE_CONTAINER (widget_node->widget))
     {
       _gtk_container_queue_restyle (GTK_CONTAINER (widget_node->widget));
     }
@@ -208,7 +203,7 @@ gtk_css_widget_node_class_init (GtkCssWidgetNodeClass *klass)
 
   node_class->update_style = gtk_css_widget_node_update_style;
   node_class->validate = gtk_css_widget_node_validate;
-  node_class->set_invalid = gtk_css_widget_node_set_invalid;
+  node_class->queue_validate = gtk_css_widget_node_queue_validate;
   node_class->create_widget_path = gtk_css_widget_node_create_widget_path;
   node_class->get_widget_path = gtk_css_widget_node_get_widget_path;
   node_class->get_style_provider = gtk_css_widget_node_get_style_provider;


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