polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior.js

/**
 * @license
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed 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.
 */
import '../base-url-behavior/base-url-behavior.js';

import '../gr-url-encoding-behavior/gr-url-encoding-behavior.js';
(function(window) {
  'use strict';

  window.Gerrit = window.Gerrit || {};

  /** @polymerBehavior Gerrit.ListViewBehavior */
  Gerrit.ListViewBehavior = [{
    computeLoadingClass(loading) {
      return loading ? 'loading' : '';
    },

    computeShownItems(items) {
      return items.slice(0, 25);
    },

    getUrl(path, item) {
      return this.getBaseUrl() + path + this.encodeURL(item, true);
    },

    /**
     * @param {Object} params
     * @return {string}
     */
    getFilterValue(params) {
      if (!params) { return ''; }
      return params.filter || '';
    },

    /**
     * @param {Object} params
     * @return {number}
     */
    getOffsetValue(params) {
      if (params && params.offset) {
        return params.offset;
      }
      return 0;
    },
  },
  Gerrit.BaseUrlBehavior,
  Gerrit.URLEncodingBehavior,
  ];

  // eslint-disable-next-line no-unused-vars
  function defineEmptyMixin() {
    // This is a temporary function.
    // Polymer linter doesn't process correctly the following code:
    // class MyElement extends Polymer.mixinBehaviors([legacyBehaviors], ...) {...}
    // To workaround this issue, the mock mixin is declared in this method.
    // In the following changes, legacy behaviors will be converted to mixins.

    /**
     * @polymer
     * @mixinFunction
     */
    Gerrit.ListViewMixin = base =>
      class extends base {
        computeLoadingClass(loading) {}

        computeShownItems(items) {}
      };
  }
})(window);