ambari/ambari-web/app/routes/stack_upgrade_routes.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var App = require('app');

module.exports = App.WizardRoute.extend({
  route: 'stack/upgrade',

  enter: function (router) {
    router.get('mainController').dataLoading().done(function () {
      Ember.run.next(function () {
        //if upgrade id is absent then upgrade is completed
        if (Em.isNone(App.db.get('MainAdminStackAndUpgrade', 'upgradeId'))) {
          router.transitionTo('main.admin.stackAndUpgrade.versions');
          return null;
        }

        App.router.get('updateController').set('isWorking', false);

        return App.ModalPopup.show({
          classNames: ['full-width-modal'],
          header: function () {
            var controller = App.router.get('mainAdminStackAndUpgradeController');
            if (controller.get('isDowngrade')) {
              return Em.I18n.t('admin.stackUpgrade.dialog.downgrade.header').format(controller.get('upgradeVersion'));
            } else {
              return Em.I18n.t('admin.stackUpgrade.dialog.header').format(controller.get('upgradeTypeDisplayName'), controller.get('upgradeVersion'));
            }
          }.property('App.router.mainAdminStackAndUpgradeController.upgradeVersion', 'App.router.mainAdminStackAndUpgradeController.isDowngrade'),
          bodyClass: App.upgradeWizardView,
          primary: Em.I18n.t('common.dismiss'),
          secondary: null,
          didInsertElement: function () {
            this.fitHeight();
            this.fitInnerHeight();
          },

          /**
           * fir height of scrollable block inside of modal body
           */
          fitInnerHeight: function () {
            var block = this.$().find('#modal > .modal-body');
            var scrollable = this.$().find('#modal .scrollable-block');

            scrollable.css('max-height', Number(block.css('max-height').slice(0, -2)) - block.height());
            block.css('max-height', 'none');
          },
          onPrimary: function () {
            this.closeWizard();
          },
          onClose: function () {
            this.closeWizard();
          },
          closeWizard: function () {
            App.router.get('updateController').set('isWorking', true);
            App.router.transitionTo('main.admin.stackAndUpgrade.versions');
            this.hide();
            location.reload();
          }
        });
      });
    });
  }
});