[gtksourceview] CompletionInfo: the child can be NULL

[Sébastien Wilmet <swilmet src gnome org>]

commit 3453e85da141f76076558a72bb24e297eacc7f17
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Sep 14 17:30:00 2013 +0200

    CompletionInfo: the child can be NULL
    
    If there is no child, the CompletionInfo size is 0x0.

 gtksourceview/gtksourcecompletioninfo.c |   33 +++++++++++++++++++++---------
 1 files changed, 23 insertions(+), 10 deletions(-)
---
diff --git a/gtksourceview/gtksourcecompletioninfo.c b/gtksourceview/gtksourcecompletioninfo.c
index 53e2288..497dfc1 100644
--- a/gtksourceview/gtksourcecompletioninfo.c
+++ b/gtksourceview/gtksourcecompletioninfo.c
@@ -93,10 +93,13 @@ idle_resize (GtkSourceCompletionInfo *info)
        gint cur_window_width;
        gint cur_window_height;
 
-       g_assert (child != NULL);
-
        info->priv->idle_resize = 0;
 
+       if (child == NULL)
+       {
+               return G_SOURCE_REMOVE;
+       }
+
        gtk_widget_get_preferred_size (child, NULL, &nat_size);
 
        border_width = gtk_container_get_border_width (GTK_CONTAINER (info));
@@ -149,18 +152,23 @@ gtk_source_completion_info_get_preferred_width (GtkWidget *widget,
                                                gint      *nat_width)
 {
        GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
-       GtkRequisition nat_size;
+       gint width = 0;
 
-       gtk_widget_get_preferred_size (child, NULL, &nat_size);
+       if (child != NULL)
+       {
+               GtkRequisition nat_size;
+               gtk_widget_get_preferred_size (child, NULL, &nat_size);
+               width = nat_size.width;
+       }
 
        if (min_width != NULL)
        {
-               *min_width = nat_size.width;
+               *min_width = width;
        }
 
        if (nat_width != NULL)
        {
-               *nat_width = nat_size.width;
+               *nat_width = width;
        }
 }
 
@@ -170,18 +178,23 @@ gtk_source_completion_info_get_preferred_height (GtkWidget *widget,
                                                 gint      *nat_height)
 {
        GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
-       GtkRequisition nat_size;
+       gint height = 0;
 
-       gtk_widget_get_preferred_size (child, NULL, &nat_size);
+       if (child != NULL)
+       {
+               GtkRequisition nat_size;
+               gtk_widget_get_preferred_size (child, NULL, &nat_size);
+               height = nat_size.height;
+       }
 
        if (min_height != NULL)
        {
-               *min_height = nat_size.height;
+               *min_height = height;
        }
 
        if (nat_height != NULL)
        {
-               *nat_height = nat_size.height;
+               *nat_height = height;
        }
 }