[geary] Avoid WebKit bug when spelling suggestions not found

[Charles Lindsay <clindsay src gnome org>]

commit 5bb9349692f429f8ae5306f252e177a967bd0f6f
Author: Robert Schroll <rschroll gmail com>
Date:   Sun Mar 2 16:13:32 2014 -0500

    Avoid WebKit bug when spelling suggestions not found
    
    webkit_context_menu_item_get_action() fails an assertion when fed the
    item indicating that there are no spelling suggestions.  Since this item
    is insensitive, we avoid making the call in that case.  There are no
    other insensitive items we need to do something special with.
    
    Closes: bgo #725518

 src/client/composer/composer-window.vala |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)
---
diff --git a/src/client/composer/composer-window.vala b/src/client/composer/composer-window.vala
index fca0af8..e92dfb5 100644
--- a/src/client/composer/composer-window.vala
+++ b/src/client/composer/composer-window.vala
@@ -1433,16 +1433,18 @@ public class ComposerWindow : Gtk.Window {
         GLib.List<weak Gtk.Widget> children = context_menu.get_children();
         foreach (weak Gtk.Widget child in children) {
             Gtk.MenuItem item = (Gtk.MenuItem) child;
-            WebKit.ContextMenuAction action = WebKit.context_menu_item_get_action(item);
-            if (action == WebKit.ContextMenuAction.SPELLING_GUESS) {
-                suggestions = true;
-                continue;
+            if (item.is_sensitive()) {
+                WebKit.ContextMenuAction action = WebKit.context_menu_item_get_action(item);
+                if (action == WebKit.ContextMenuAction.SPELLING_GUESS) {
+                    suggestions = true;
+                    continue;
+                }
+                
+                if (action == WebKit.ContextMenuAction.IGNORE_SPELLING)
+                    ignore_spelling = item;
+                else if (action == WebKit.ContextMenuAction.LEARN_SPELLING)
+                    learn_spelling = item;
             }
-            
-            if (action == WebKit.ContextMenuAction.IGNORE_SPELLING)
-                ignore_spelling = item;
-            else if (action == WebKit.ContextMenuAction.LEARN_SPELLING)
-                learn_spelling = item;
             context_menu.remove(child);
         }