[goffice] Do not crash when deleting a grabbed item. [#609747]

[Jean Bréfort <jbrefort src gnome org>]

commit e4ba24fcc6c3c0fab6a9061f949feed501994786
Author: Jean Brefort <jean brefort normalesup org>
Date:   Fri Feb 12 16:00:55 2010 +0100

    Do not crash when deleting a grabbed item. [#609747]

 ChangeLog                 |    5 +++++
 NEWS                      |    1 +
 goffice/canvas/goc-item.c |    2 ++
 3 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 207dadf..1205a76 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-02-12  Jean Brefort  <jean brefort normalesup org>
+
+	* goffice/canvas/goc-item.c (goc_item_dispose): ungrab item on dispose
+	when needed. [#609747]
+
 2010-02-11  Morten Welinder  <terra gnome org>
 
 	* configure.in: Bump version number in preparation for release.
diff --git a/NEWS b/NEWS
index 0d47932..b163545 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,7 @@ goffice 0.8.0:
 
 Jean:
 	* Do not crash when a chart contains no plot. [#607960]
+	* Do not crash when deleting a grabbed item. [#609747]
 
 Morten:
 	* Add "autoload" flag for plugins.
diff --git a/goffice/canvas/goc-item.c b/goffice/canvas/goc-item.c
index f4cc872..18e2f81 100644
--- a/goffice/canvas/goc-item.c
+++ b/goffice/canvas/goc-item.c
@@ -192,6 +192,8 @@ goc_item_dispose (GObject *object)
 	if (item->canvas) {
 		if (item->canvas->last_item == item)
 			item->canvas->last_item = NULL;
+		if (item->canvas->grabbed_item == item)
+			item->canvas->grabbed_item = NULL;
 		if (gtk_widget_is_realized (item->canvas)) {
 			item->cached_bounds = TRUE; /* avoids a call to update_bounds */
 			goc_item_invalidate (item);