[libwnck] Fix a few issues when building with GSEAL_ENABLED. See bug 612490.

[Andre Klapper <aklapper src gnome org>]

commit 3814479fe56974b3837ca15ac5891aba2433ecc1
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Apr 16 12:40:44 2010 +0200

    Fix a few issues when building with GSEAL_ENABLED. See bug 612490.

 libwnck/pager-accessible.c     |   20 ++++++++++++++++++++
 libwnck/tasklist.c             |    2 +-
 libwnck/test-tasklist.c        |    2 +-
 libwnck/workspace-accessible.c |    4 ++++
 4 files changed, 26 insertions(+), 2 deletions(-)
---
diff --git a/libwnck/pager-accessible.c b/libwnck/pager-accessible.c
index 61f6753..c216081 100644
--- a/libwnck/pager-accessible.c
+++ b/libwnck/pager-accessible.c
@@ -153,7 +153,11 @@ wnck_pager_add_selection (AtkSelection *selection,
   GtkWidget *widget;
   int n_spaces; 
 
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
+#else
   widget = GTK_ACCESSIBLE (selection)->widget;
+#endif
 
   if (widget == NULL) 
     {
@@ -194,7 +198,11 @@ wnck_pager_ref_selection (AtkSelection *selection,
 
   g_return_val_if_fail (i == 0, NULL);
 
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
+#else
   widget = GTK_ACCESSIBLE (selection)->widget;
+#endif
   if (widget == NULL) 
     {
       /*
@@ -221,7 +229,11 @@ wnck_pager_selection_count (AtkSelection *selection)
 {
   GtkWidget *widget;
 
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
+#else
   widget = GTK_ACCESSIBLE (selection)->widget;
+#endif
   if (widget == NULL) 
     {
       /*
@@ -248,7 +260,11 @@ wnck_pager_is_child_selected (AtkSelection *selection,
   WnckWorkspace *active_wspace;
   int wsno;
 
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
+#else
   widget = GTK_ACCESSIBLE (selection)->widget;
+#endif
   if (widget == NULL) 
     {
       /*
@@ -378,7 +394,11 @@ wnck_pager_accessible_ref_child (AtkObject *obj,
   g_return_val_if_fail (ATK_IS_OBJECT (obj), NULL);
 
   accessible = GTK_ACCESSIBLE (obj);
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (accessible);
+#else
   widget = accessible->widget;
+#endif
 
   if (widget == NULL)
     /* State is defunct */
diff --git a/libwnck/tasklist.c b/libwnck/tasklist.c
index 9e1c6ad..d35709d 100644
--- a/libwnck/tasklist.c
+++ b/libwnck/tasklist.c
@@ -3976,7 +3976,7 @@ fake_expose_widget (GtkWidget *widget,
   gtk_widget_set_window (widget, pixmap);
      but pixmap is not a GdkWindow...
    */
-  widget->window = pixmap;
+  gtk_widget_set_window (widget, pixmap);
   allocation.x += x;
   allocation.y += y;
   gtk_widget_set_allocation (widget, &allocation);
diff --git a/libwnck/test-tasklist.c b/libwnck/test-tasklist.c
index 850af0d..ea9577e 100644
--- a/libwnck/test-tasklist.c
+++ b/libwnck/test-tasklist.c
@@ -29,7 +29,7 @@ window_expose_event (GtkWidget      *widget,
 {
   cairo_t *cr;
 
-  cr = gdk_cairo_create (widget->window);
+  cr = gdk_cairo_create (gtk_widget_get_window (widget));
   cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
   gdk_cairo_region (cr, event->region);
   cairo_set_source_rgba (cr, 1., 1., 1., .5);
diff --git a/libwnck/workspace-accessible.c b/libwnck/workspace-accessible.c
index 26eb42e..8addbff 100644
--- a/libwnck/workspace-accessible.c
+++ b/libwnck/workspace-accessible.c
@@ -120,7 +120,11 @@ wnck_workspace_accessible_get_extents (AtkComponent *component,
   workspace = WNCK_WORKSPACE (g_obj);
 
   parent = atk_object_get_parent (ATK_OBJECT(component));
+#if GTK_CHECK_VERSION(2,21,0)
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
+#else
   widget = GTK_ACCESSIBLE (parent)->widget;
+#endif
 
   if (widget == NULL)
     {