+ gboolean (*fetch_image) (ModestMsgView *msgview, const gchar *uri,
+ TnyStream *stream);
+ void (*show_details) (ModestMsgView *msgview, gpointer userdata);
+
+ void (*request_fetch_images_func) (ModestMsgView *msgview);
+ gboolean (*has_blocked_external_images_func) (ModestMsgView *msgview);
+ void (*limit_error) (ModestMsgView *msgview);