polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior.html

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<script>
(function(window) {
  'use strict';

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

  const PROJECT_DASHBOARD_PATTERN = /\/p\/(.+)\/\+\/dashboard\/(.*)/;
  const REPO_URL_PATTERN = /^\/admin\/repos/;
  const PROJECT_URL = '/admin/projects';
  /** @polymerBehavior Gerrit.BaseUrlBehavior */
  Gerrit.BaseUrlBehavior = {
    /** @return {string} */
    getBaseUrl() {
      return window.CANONICAL_PATH || '';
    },

    computeGwtUrl(path) {
      const base = this.getBaseUrl();
      let clientPath = path.substring(base.length);
      const match = clientPath.match(PROJECT_DASHBOARD_PATTERN);
      if (match) {
        clientPath = `/projects/${match[1]},dashboards/${match[2]}`;
      }
      // Replace any '/admin/project' links to '/admin/repo'
      clientPath = clientPath.replace(REPO_URL_PATTERN, PROJECT_URL);
      return base + '/?polygerrit=0#' + clientPath;
    },
  };
})(window);
</script>