Add method to refresh a shuttle screen

Example of usage in an odoo shell, when a screen is open:

>>> self.env['vertical.lift.shuttle'].browse(1)._operation_for_mode().operation_descr = 'foo'
>>> self.env['vertical.lift.shuttle'].browse(1)._send_notification_refresh()
>>> env.cr.commit()

Provided the longpolling is correctly configured with a proxy, the
screen should immediately refresh with 'foo' as operation description.

stock_vertical_lift/static/src/js/vertical_lift.js

@@ -5,6 +5,7 @@ var core = require('web.core');
 var KanbanRecord = require('web.KanbanRecord');
 var basicFields = require('web.basic_fields');
 var field_registry = require('web.field_registry');
+var FormController = require('web.FormController');
 var FieldInteger = basicFields.FieldInteger;
 
 KanbanRecord.include({
@@ -44,6 +45,53 @@ var ExitButton = FieldInteger.extend({
             clear_breadcrumbs: true,
         });
     },
+
+});
+
+
+FormController.include({
+    init: function (parent, model, renderer, params) {
+        this._super.apply(this, arguments);
+        if(this.modelName.startsWith('vertical.lift.operation.')) {
+            this.call('bus_service', 'addChannel', 'notify_vertical_lift_screen');
+            this.call(
+                'bus_service', 'on', 'notification',
+                this, this.vlift_bus_notification
+            );
+            this.call('bus_service', 'startPolling');
+        }
+    },
+    vlift_bus_notification: function (notifications) {
+        var self = this;
+        _.each(notifications, function (notification) {
+            var channel = notification[0];
+            var message = notification[1];
+            if(channel === 'notify_vertical_lift_screen') {
+                switch(message['action']) {
+                case 'refresh':
+                    self.vlift_bus_action_refresh(message['params']);
+                    break;
+                }
+            }
+        });
+    },
+    vlift_bus_action_refresh: function(params) {
+        var selectedIds = this.getSelectedIds();
+        if(!selectedIds.length){
+            return;
+        }
+        var currentId = selectedIds[0];
+        if(params['id'] === currentId && params['model'] == this.modelName){
+            this.reload();
+        }
+    },
+    destroy: function () {
+        if(this.modelName.startsWith('vertical.lift.operation.')) {
+            this.call('bus_service', 'deleteChannel', 'notify_vertical_lift_screen');
+        }
+        this._super.apply(this, arguments);
+    }
+
 });
 
 field_registry.add('vlift_shuttle_exit_button', ExitButton);