Delete the old hotwording integration.

chrome/browser/resources/hotword_helper/manager.js

-// Copyright (c) 2014 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.
-
-'use strict';
-
-/**
- * @fileoverview This extension manages communications between Chrome,
- * Google.com pages and the Chrome Hotword extension.
- *
- * This helper extension is required due to the depoyment plan for Chrome M34:
- *
- *  - The hotword extension will be distributed as an externally loaded
- *      component extension.
- *  - Settings for enabling and disabling the hotword extension has moved to
- *      Chrome settings.
- *  - NewTab page is served via chrome://newtab/
- *
- */
-
-
-
-/** @constructor */
-var OptInManager = function() {};
-
-
-/**
- * @const {string}
- * @private
- */
-OptInManager.HOTWORD_EXTENSION_ID_ = 'bepbmhgboaologfdajaanbcjmnhjmhfn';
-
-
-/**
- * Test extension ID.
- * @const {string}
- * @private
- */
-OptInManager.TEST_EXTENSION_ID_ = 'cpfhkdbjfdgdebcjlifoldbijinjfifp';
-
-
-/**
- * Commands sent from the page to this content script.
- * @enum {string}
- */
-OptInManager.CommandFromPage = {
-  // User has explicitly clicked 'no'.
-  CLICKED_NO_OPTIN: 'hcno',
-  // User has opted in.
-  CLICKED_OPTIN: 'hco',
-  // Audio logging is opted in.
-  AUDIO_LOGGING_ON: 'alon',
-  // Audio logging is opted out.
-  AUDIO_LOGGING_OFF: 'aloff',
-  // User visited an eligible page.
-  PAGE_WAKEUP: 'wu'
-};
-
-
-/**
- * @param {Tab} tab Tab to inject.
- * @param {function(HotwordStatus)} sendResponse Callback function to respond
- *     to sender.
- * @param {HotwordStatus} hotwordStatus Status of the hotword extension.
- * @private
- */
-OptInManager.prototype.injectTab_ = function(
-    tab, sendResponse, hotwordStatus) {
-  var response = {'doNotShowOptinMessage': true};
-
-  if (!tab.incognito && hotwordStatus.available) {
-    if (!hotwordStatus.enabledSet)
-      response = hotwordStatus;
-    else if (hotwordStatus.enabled)
-      chrome.tabs.executeScript(tab.id, {'file': 'audio_client.js'});
-  }
-
-  try {
-    sendResponse(response);
-  } catch (err) {
-    // Suppress the exception thrown by sendResponse() when the page doesn't
-    // specify a response callback in the call to chrome.runtime.sendMessage().
-    // Unfortunately, there doesn't appear to be a way to detect one-way
-    // messages without explicitly saying in the message itself.  This message
-    // is defined as a constant in extensions/renderer/messaging_bindings.cc
-    if (err.message == 'Attempting to use a disconnected port object')
-      return;
-    throw err;
-  }
-};
-
-
-/**
- * Handles messages from the helper content script.
- * @param {*} request Message from the sender.
- * @param {MessageSender} sender Information about the sender.
- * @param {function(HotwordStatus)} sendResponse Callback function to respond
- *     to sender.
- * @return {boolean} Whether to maintain the port open to call sendResponse.
- * @private
- */
-OptInManager.prototype.handleMessage_ = function(
-    request, sender, sendResponse) {
-  switch (request.type) {
-    case OptInManager.CommandFromPage.PAGE_WAKEUP:
-      if (((sender.tab && this.isEligibleUrl(sender.tab.url)) ||
-          sender.id == OptInManager.HOTWORD_EXTENSION_ID_ ||
-          sender.id == OptInManager.TEST_EXTENSION_ID_) &&
-          chrome.hotwordPrivate && chrome.hotwordPrivate.getStatus) {
-        chrome.hotwordPrivate.getStatus(
-            this.injectTab_.bind(
-                this,
-                request.tab || sender.tab || {incognito: true},
-                sendResponse));
-        return true;
-      }
-      break;
-    case OptInManager.CommandFromPage.CLICKED_OPTIN:
-      if (chrome.hotwordPrivate && chrome.hotwordPrivate.setEnabled &&
-          chrome.hotwordPrivate.getStatus) {
-        chrome.hotwordPrivate.setEnabled(true);
-        chrome.hotwordPrivate.getStatus(
-            this.injectTab_.bind(this, sender.tab, sendResponse));
-        return true;
-      }
-      break;
-    // User has explicitly clicked 'no thanks'.
-    case OptInManager.CommandFromPage.CLICKED_NO_OPTIN:
-      if (chrome.hotwordPrivate && chrome.hotwordPrivate.setEnabled) {
-        chrome.hotwordPrivate.setEnabled(false);
-      }
-      break;
-    // Information regarding the audio logging preference was sent.
-    case OptInManager.CommandFromPage.AUDIO_LOGGING_ON:
-      if (chrome.hotwordPrivate &&
-          chrome.hotwordPrivate.setAudioLoggingEnabled) {
-        chrome.hotwordPrivate.setAudioLoggingEnabled(true);
-      }
-      break;
-    case OptInManager.CommandFromPage.AUDIO_LOGGING_OFF:
-      if (chrome.hotwordPrivate &&
-          chrome.hotwordPrivate.setAudioLoggingEnabled) {
-        chrome.hotwordPrivate.setAudioLoggingEnabled(false);
-      }
-      break;
-    default:
-      break;
-  }
-  return false;
-};
-
-/**
- * Helper function to test URLs as being valid for running the
- * hotwording extension. It's used by isEligibleUrl to make that
- * function clearer.
- * @param {string} url URL to check.
- * @param {string} base Base URL to compare against..
- * @return {boolean} True if url is an eligible hotword URL.
- */
-OptInManager.prototype.checkEligibleUrl = function(url, base) {
-  if (!url)
-    return false;
-
-  if (url === base ||
-      url === base + '/' ||
-      url.indexOf(base + '/_/chrome/newtab?') === 0 ||  // Appcache NTP.
-      url.indexOf(base + '/?') === 0 ||
-      url.indexOf(base + '/#') === 0 ||
-      url.indexOf(base + '/webhp') === 0 ||
-      url.indexOf(base + '/search') === 0) {
-    return true;
-  }
-  return false;
-
-};
-
-/**
- * Determines if a URL is eligible for hotwording. For now, the
- * valid pages are the Google HP and SERP (this will include the NTP).
- * @param {string} url URL to check.
- * @return {boolean} True if url is an eligible hotword URL.
- */
-OptInManager.prototype.isEligibleUrl = function(url) {
-  if (!url)
-    return false;
-
-  // More URLs will be added in the future so leaving this as an array.
-  var baseUrls = [
-    'chrome://newtab'
-  ];
-  var baseGoogleUrls = [
-    'https://www.google.',
-    'https://encrypted.google.'
-  ];
-  var tlds = [
-    'com',
-    'co.uk',
-    'de',
-    'fr',
-    'ru'
-  ];
-
-  // Check URLs which do not have locale-based TLDs first.
-  if (this.checkEligibleUrl(url, baseUrls[0]))
-    return true;
-
-  // Check URLs with each type of local-based TLD.
-  for (var i = 0; i < baseGoogleUrls.length; i++) {
-    for (var j = 0; j < tlds.length; j++) {
-      var base = baseGoogleUrls[i] + tlds[j];
-      if (this.checkEligibleUrl(url, base))
-        return true;
-    }
-  }
-  return false;
-};
-
-
-/**
- * Initializes the extension.
- */
-OptInManager.prototype.initialize = function() {
-  // TODO(rlp): Possibly remove the next line. It's proably not used, but
-  // leaving for now to be safe. We should remove it once all messsage
-  // relaying is removed form the content scripts.
-  chrome.runtime.onMessage.addListener(this.handleMessage_.bind(this));
-  chrome.runtime.onMessageExternal.addListener(
-      this.handleMessage_.bind(this));
-};
-
-
-new OptInManager().initialize();