[evolution/wip/webkit2] Bug 758015 - Composer lockup

[Milan Crha <mcrha src gnome org>]

commit 35670af8ecf6d56d6165fc00a3db046214fd9008
Author: Tomas Popela <tpopela redhat com>
Date:   Wed Mar 2 17:29:20 2016 +0100

    Bug 758015 - Composer lockup

 .../composer/e-html-editor-view-dom-functions.c    |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/web-extensions/composer/e-html-editor-view-dom-functions.c 
b/web-extensions/composer/e-html-editor-view-dom-functions.c
index dd6b5ad..adbcada 100644
--- a/web-extensions/composer/e-html-editor-view-dom-functions.c
+++ b/web-extensions/composer/e-html-editor-view-dom-functions.c
@@ -9110,9 +9110,14 @@ key_press_event_process_delete_or_backspace_key (WebKitDOMDocument *document,
                }
 
                last_child = webkit_dom_node_get_last_child (prev_block);
-               while (WEBKIT_DOM_IS_HTML_QUOTE_ELEMENT (last_child))
+               while (last_child && WEBKIT_DOM_IS_HTML_QUOTE_ELEMENT (last_child))
                        last_child = webkit_dom_node_get_last_child (last_child);
 
+               if (!last_child) {
+                       dom_selection_restore (document);
+                       return FALSE;
+               }
+
                dom_remove_wrapping_from_element (WEBKIT_DOM_ELEMENT (last_child));
                dom_remove_quoting_from_element (WEBKIT_DOM_ELEMENT (last_child));