Enable case sensitive search button

It was available in the previous evince code, but not shown and not working.

This commit fixes the button, but case sensitive search need to be fixed in
the varios backends.

See mate-desktop#41
mate-desktop#41

Author: stefano-k

shell/eggfindbar.c

@@ -235,13 +235,13 @@ previous_clicked_callback (GtkButton *button,
 }
 
 static void
-case_sensitive_toggled_callback (GtkCheckButton *button,
-                                 void           *data)
+case_sensitive_toggled_callback (GtkToggleToolButton  *button,
+                                 void                 *data)
 {
   EggFindBar *find_bar = EGG_FIND_BAR (data);
 
   egg_find_bar_set_case_sensitive (find_bar,
-                                   gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)));
+                                   gtk_toggle_tool_button_get_active (button));
 }
 
 static void
@@ -345,7 +345,7 @@ egg_find_bar_init (EggFindBar *find_bar)
 
   /* Case button */
   priv->case_button = gtk_toggle_tool_button_new ();
-  g_object_set (G_OBJECT (priv->case_button), "label", _("C_ase Sensitive"), NULL);
+  g_object_set (G_OBJECT (priv->case_button), "label", _("Case Sensitive"), NULL);
   gtk_tool_item_set_is_important (priv->case_button, TRUE);
   gtk_widget_set_tooltip_text (GTK_WIDGET (priv->case_button),
 			       _("Toggle case sensitive search"));
@@ -392,6 +392,7 @@ egg_find_bar_init (EggFindBar *find_bar)
   gtk_widget_show_all (GTK_WIDGET (item));
   gtk_widget_show_all (GTK_WIDGET (priv->next_button));
   gtk_widget_show_all (GTK_WIDGET (priv->previous_button));
+  gtk_widget_show_all (GTK_WIDGET (priv->case_button));
   gtk_widget_show (priv->status_label);
 }
 
@@ -628,8 +629,8 @@ egg_find_bar_set_case_sensitive (EggFindBar *find_bar,
     {
       priv->case_sensitive = case_sensitive;
 
-      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->case_button),
-                                    priv->case_sensitive);
+      gtk_toggle_tool_button_set_active (priv->case_button,
+                                         priv->case_sensitive);
 
       g_object_notify (G_OBJECT (find_bar),
                        "case_sensitive");