ambari-web/app/views/common/filter_combo_cleanable.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');


/**
 * Filter component with custom dropdown and cross-circled cleaner. Build on Twitter Bootstrap styles
 * @type {*}
 */
App.FilterComboCleanableView = Ember.View.extend({
  templateName: require('templates/common/filter_combo_cleanable'),

  classNames: ['filter-combobox', 'input-group'],

  didInsertElement: function() {
    App.popover(this.$("input[type=text]"), {
      title: this.get('popoverDescription')[0],
      content: this.get('popoverDescription')[1],
      placement: 'bottom',
      trigger: 'hover'
    });
    this.clearFilter();
  },

  /**
   * @type {string}
   */
  placeHolder: Em.I18n.t('common.combobox.placeholder'),

  /**
   * Onclick handler for dropdown menu
   * @param event
   */
  selectFilterColumn: function(event){
    var column = event.context;
    if (!column.get('isDisabled')) {
      column.set('selected', !column.get('selected'));
    }
  },

  filterNotEmpty: Em.computed.gt('filter.length', 0),

  /**
   * true if any of filter columns is selected
   * in this case clear filter row should be shown
   * @type {boolean}
   */
  showClearFilter: Em.computed.someBy('columns', 'selected', true),

  /**
   * clears all filter columns.
   * @method clearFilterColumn
   */
  clearFilterColumn: function() {
    this.get('columns').filter(function (column) {
      return !column.get('isDisabled');
    }).setEach('selected', false);
  },

  /**
   * clear Filter textfield
   */
  clearFilter: function() {
    this.set('filter', '');
  }
});