[gtk+/wip/baedert/visible-widgets] Don't hide windows and popovers in init()

[Timm Bäder <baedert src gnome org>]

commit 64e3334a032136a66857f8546b4cdf6008122dc4
Author: Timm Bäder <mail baedert org>
Date:   Fri Jan 20 10:37:29 2017 +0100

    Don't hide windows and popovers in init()
    
    Instead, don't make them visible in gtk_widget_init in the first place.

 gtk/gtkpopover.c |    2 --
 gtk/gtkwidget.c  |   14 ++++++++++++--
 gtk/gtkwindow.c  |    3 ---
 3 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
index 4d98abd..4a6c753 100644
--- a/gtk/gtkpopover.c
+++ b/gtk/gtkpopover.c
@@ -220,8 +220,6 @@ gtk_popover_init (GtkPopover *popover)
 
   context = gtk_widget_get_style_context (GTK_WIDGET (popover));
   gtk_style_context_add_class (context, GTK_STYLE_CLASS_BACKGROUND);
-
-  gtk_widget_hide (widget);
 }
 
 static void
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index d216298..e46bcce 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -772,6 +772,9 @@ static gboolean event_window_is_still_viewable (GdkEvent *event);
 
 static void gtk_widget_update_input_shape (GtkWidget *widget);
 
+static gboolean gtk_widget_class_get_visible_by_default (GtkWidgetClass *widget_class);
+
+
 /* --- variables --- */
 static gint             GtkWidget_private_offset = 0;
 static gpointer         gtk_widget_parent_class = NULL;
@@ -3783,7 +3786,7 @@ gtk_widget_init (GTypeInstance *instance, gpointer g_class)
   widget->priv = gtk_widget_get_instance_private (widget); 
   priv = widget->priv;
 
-  priv->visible = TRUE;
+  priv->visible = gtk_widget_class_get_visible_by_default (g_class);
   priv->child_visible = TRUE;
   priv->name = NULL;
   priv->allocation.x = -1;
@@ -3843,7 +3846,7 @@ gtk_widget_init (GTypeInstance *instance, gpointer g_class)
 
   priv->cssnode = gtk_css_widget_node_new (widget);
   gtk_css_node_set_state (priv->cssnode, priv->state_flags);
-  gtk_css_node_set_visible (priv->cssnode, TRUE);
+  gtk_css_node_set_visible (priv->cssnode, priv->visible);
   /* need to set correct type here, and only class has the correct type here */
   gtk_css_node_set_widget_type (priv->cssnode, G_TYPE_FROM_CLASS (g_class));
 }
@@ -14536,6 +14539,13 @@ gtk_widget_class_set_css_name (GtkWidgetClass *widget_class,
   priv->css_name = g_intern_string (name);
 }
 
+static gboolean
+gtk_widget_class_get_visible_by_default (GtkWidgetClass *widget_class)
+{
+  return !(GTK_IS_WINDOW_CLASS (widget_class) ||
+           GTK_IS_POPOVER_CLASS (widget_class));
+}
+
 /**
  * gtk_widget_class_get_css_name:
  * @widget_class: class to set the name on
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 66e804c..f22b9ec 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -1714,9 +1714,6 @@ gtk_window_init (GtkWindow *window)
                      GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP,
                      dnd_dest_targets, G_N_ELEMENTS (dnd_dest_targets),
                      GDK_ACTION_MOVE);
-
-
-  gtk_widget_hide (GTK_WIDGET (window));
 }
 
 static void