Re-Add askToValidate

- No idea where this got deleted

resources/lib/itemtypes.py

@@ -69,6 +69,22 @@ class Items(object):
         self.kodiconn.close()
         return self
 
+    def askToValidate(self, url):
+        """
+        Displays a YESNO dialog box:
+            Kodi can't locate file: <url>. Please verify the path.
+            You may need to verify your network credentials in the
+            add-on settings or use different Plex paths. Stop syncing?
+        Returns True if sync should stop, else False
+        """
+        import xbmcaddon
+        string = xbmcaddon.Addon().getLocalizedString
+        resp = xbmcgui.Dialog().yesno(
+            heading=self.addonName,
+            line1=string(39031) + url,
+            line2=string(39032))
+        return resp
+
     def itemsbyId(self, items, process, pdialog=None):
         # Process items by itemid. Process can be added, update, userdata, remove
         emby = self.emby