[erp5_web_renderjs_ui] Router: do not translate during startup if not needed

This prevent to load the translation gadget during the page load

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_router_js.js

@@ -624,6 +624,7 @@
         return redirectToParent(gadget, jio_key, previous_options);
       }
     }
+    // XXX XXX XXX
     if (previous_options.back_field) {
       queue
         .push(function () {
@@ -915,11 +916,21 @@
 
       //execute an url command without saving
       if (gadget.props.modified && command[0] === PREFIX_COMMAND && !gadget.props.form_content) {
-        if (!window.confirm(gadget.props.warning_message)) {
+        return gadget.translate(
+          "This page contains unsaved changes, do you really want to leave the page ?"
+        )
+          .push(function (warning_message) {
+            if (window.confirm(warning_message)) {
+              return gadget.route({
+                method: command[0],
+                path: command.substr(1),
+                args: args
+              });
+            }
             //back to previous hash
             gadget.props.hasUnsaved = true;
             return synchronousChangeState(evt.oldURL);
-        }
+          });
       }
       //don't rerender old page when back to the previous hash
       if (gadget.props.hasUnsaved) {
@@ -1075,8 +1086,7 @@
           return RSVP.all([
             gadget.getSetting("selected_language"),
             gadget.getSetting("default_selected_language"),
-            gadget.getSetting("language_map"),
-            gadget.translate("This page contains unsaved changes, do you really want to leave the page ?")
+            gadget.getSetting("language_map")
           ]);
         })
         .push(function (results) {
@@ -1088,7 +1098,6 @@
               }
             });
           }
-          gadget.props.warning_message = results[3];
           return gadget.listenHashChange();
         })
         .push(undefined, function (error) {

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_router_js.xml

@@ -232,7 +232,7 @@
             </item>
             <item>
                 <key> <string>serial</string> </key>
-                <value> <string>971.10497.43311.42888</string> </value>
+                <value> <string>971.50995.42315.11776</string> </value>
             </item>
             <item>
                 <key> <string>state</string> </key>
@@ -250,7 +250,7 @@
                     </tuple>
                     <state>
                       <tuple>
-                        <float>1540805313.26</float>
+                        <float>1543248439.12</float>
                         <string>UTC</string>
                       </tuple>
                     </state>