[anjal] Fixes crash while focussing.

[Srinivasa Ragavan <sragavan src gnome org>]

commit fa0158f7bdc3d0d6cd1a442ae55c30f30d306261
Author: Srinivasa Ragavan <sragavan novell com>
Date:   Tue May 19 00:29:41 2009 +0530

    Fixes crash while focussing.
---
 src/mail-conv-view.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/src/mail-conv-view.c b/src/mail-conv-view.c
index 3b38736..0f067ec 100644
--- a/src/mail-conv-view.c
+++ b/src/mail-conv-view.c
@@ -209,7 +209,8 @@ mcv_adjust_scroll(MailConvView *mcv, MailMessageView *mmv)
 {
 	int x, y, height, ret;
 	GtkAdjustment *adj = gtk_viewport_get_vadjustment(mcv->priv->viewport);
-
+	if (!((GtkContainer *)mcv->child_box)->focus_child)
+		return;
 	ret = gtk_widget_translate_coordinates (mcv->priv->selected_child->data, mcv->child_box, 0, 0, &x, &y);
 	height = ((GtkContainer *)mcv->child_box)->focus_child->allocation.height;
 	gtk_adjustment_clamp_page (adj, y + height, y+height+gtk_adjustment_get_page_increment(adj)-36);
@@ -231,6 +232,8 @@ mcv_sh_focus_expose (GtkWidget *w, GdkEventExpose *event, MailConvView *mcv)
 	if (!mcv->priv->once) {
 		mcv->priv->once = TRUE;
 		ret = gtk_widget_translate_coordinates (mcv->priv->selected_child->data, mcv->child_box, 0, 0, &x, &y);
+		if (!((GtkContainer *)mcv->child_box)->focus_child)
+			return FALSE;
 		height = ((GtkContainer *)mcv->child_box)->focus_child->allocation.height;
 		gtk_adjustment_clamp_page (adj, y, y+height);
 	}