polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info.js

/**
 * @license
 * Copyright (C) 2016 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.
 */
(function() {
  'use strict';

  Polymer({
    is: 'gr-commit-info',

    properties: {
      change: Object,
      /** @type {?} */
      commitInfo: Object,
      serverConfig: Object,
      _showWebLink: {
        type: Boolean,
        computed: '_computeShowWebLink(change, commitInfo, serverConfig)',
      },
      _webLink: {
        type: String,
        computed: '_computeWebLink(change, commitInfo, serverConfig)',
      },
    },

    _getWeblink(change, commitInfo, config) {
      return Gerrit.Nav.getPatchSetWeblink(
          change.project,
          commitInfo.commit,
          {
            weblinks: commitInfo.web_links,
            config,
          });
    },

    _computeShowWebLink(change, commitInfo, serverConfig) {
      // Polymer 2: check for undefined
      if ([change, commitInfo, serverConfig].some(arg => arg === undefined)) {
        return undefined;
      }

      const weblink = this._getWeblink(change, commitInfo, serverConfig);
      return !!weblink && !!weblink.url;
    },

    _computeWebLink(change, commitInfo, serverConfig) {
      // Polymer 2: check for undefined
      if ([change, commitInfo, serverConfig].some(arg => arg === undefined)) {
        return undefined;
      }

      const {url} = this._getWeblink(change, commitInfo, serverConfig) || {};
      return url;
    },

    _computeShortHash(commitInfo) {
      const {name} =
            this._getWeblink(this.change, commitInfo, this.serverConfig) || {};
      return name;
    },
  });
})();