chrome/browser/resources/bookmarks/browser_proxy.js

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import {addSingletonGetter, sendWithPromise} from 'chrome://resources/js/cr.m.js';

import {IncognitoAvailability} from './constants.js';

export class BrowserProxy {
  /**
   * @return {!Promise<!IncognitoAvailability>} Promise resolved with the
   *     current incognito mode preference.
   */
  getIncognitoAvailability() {
    return sendWithPromise('getIncognitoAvailability');
  }

  /**
   * @return {!Promise<boolean>} Promise resolved with whether the bookmarks
   *     can be edited.
   */
  getCanEditBookmarks() {
    return sendWithPromise('getCanEditBookmarks');
  }

  /**
   * @return {!Promise<string>} Promise resolved with the appropriate plural
   *     string for |messageName| with |itemCount| items.
   */
  getPluralString(messageName, itemCount) {
    return sendWithPromise('getPluralString', messageName, itemCount);
  }

  /**
   * Notifies the metrics handler to record a histogram value.
   * @param {string} histogram The name of the histogram to record
   * @param {number} bucket The bucket to record
   * @param {number} maxBucket The maximum bucket value in the histogram.
   */
  recordInHistogram(histogram, bucket, maxBucket) {
    chrome.send(
        'metricsHandler:recordInHistogram', [histogram, bucket, maxBucket]);
  }
}

addSingletonGetter(BrowserProxy);