remoting/webapp/butter_bar.js

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview
   7  * ButterBar class that is used to show the butter bar with various
   8  * notifications.
   9  */
  10
  11 'use strict';
  12
  13 /** @suppress {duplicate} */
  14 var remoting = remoting || {};
  15
  16 /**
  17  * @constructor
  18  */
  19 remoting.ButterBar = function() {
  20   this.storageKey_ = '';
  21
  22   /** @type{remoting.ButterBar} */
  23   var that = this;
  24
  25   /** @param {Object} syncValues */
  26   var onSyncDataLoaded = function(syncValues) {
  27     chrome.storage.local.get(
  28         remoting.kIT2MeVisitedStorageKey,
  29         that.onStateLoaded_.bind(that, syncValues));
  30   };
  31
  32   chrome.storage.sync.get(
  33       [remoting.ButterBar.kSurveyStorageKey_,
  34        remoting.ButterBar.kHangoutsStorageKey_],
  35       onSyncDataLoaded);
  36 }
  37
  38 /**
  39  * Shows butter bar with the specified |message| and updates |storageKey| after
  40  * the bar is dismissed.
  41  *
  42  * @param {string} messageId
  43  * @param {string|Array} substitutions
  44  * @param {string} storageKey
  45  * @private
  46  */
  47 remoting.ButterBar.prototype.show_ =
  48     function(messageId, substitutions, storageKey) {
  49   this.storageKey_ = storageKey;
  50
  51   var messageElement = document.getElementById(remoting.ButterBar.kMessageId_);
  52   l10n.localizeElementFromTag(messageElement, messageId, substitutions, true);
  53   var acceptLink =
  54       /** @type{Element} */ messageElement.getElementsByTagName('a')[0];
  55   acceptLink.addEventListener(
  56       'click', this.dismiss.bind(this, true), false);
  57
  58   document.getElementById(remoting.ButterBar.kDismissId_).addEventListener(
  59       'click', this.dismiss.bind(this, false), false);
  60
  61   document.getElementById(remoting.ButterBar.kId_).hidden = false;
  62 }
  63
  64 /**
  65   * @param {Object} syncValues
  66   * @param {Object} localValues
  67   * @private
  68   */
  69 remoting.ButterBar.prototype.onStateLoaded_ =
  70     function(syncValues, localValues) {
  71   /** @type {boolean} */
  72   var surveyDismissed = !!syncValues[remoting.ButterBar.kSurveyStorageKey_];
  73   /** @type {boolean} */
  74   var hangoutsDismissed =
  75       !!syncValues[remoting.ButterBar.kHangoutsStorageKey_];
  76   /** @type {boolean} */
  77   var it2meExpanded = !!localValues[remoting.kIT2MeVisitedStorageKey];
  78
  79   var showSurvey = !surveyDismissed;
  80   var showHangouts = it2meExpanded && !hangoutsDismissed;
  81
  82   // If both messages can be shown choose only one randomly.
  83   if (showSurvey && showHangouts) {
  84     if (Math.random() > 0.5) {
  85       showSurvey = false;
  86     } else {
  87       showHangouts = false;
  88     }
  89   }
  90
  91   if (showSurvey) {
  92     this.show_(/*i18n-content*/'SURVEY_INVITATION',
  93                ['<a href="http://goo.gl/njH2q" target="_blank">', '</a>'],
  94                remoting.ButterBar.kSurveyStorageKey_);
  95   } else if (showHangouts) {
  96     this.show_(/*i18n-content*/'HANGOUTS_INVITATION',
  97                ['<a id="hangouts-accept" ' +
  98                 'href="https://plus.google.com/hangouts/_?gid=818572447316">',
  99                 '</a>'],
 100                remoting.ButterBar.kHangoutsStorageKey_);
 101   }
 102 };
 103
 104 /** @const @private */
 105 remoting.ButterBar.kId_ = 'butter-bar';
 106
 107 /** @const @private */
 108 remoting.ButterBar.kMessageId_ = 'butter-bar-message';
 109 /** @const @private */
 110 remoting.ButterBar.kDismissId_ = 'butter-bar-dismiss';
 111
 112 /** @const @private */
 113 remoting.ButterBar.kSurveyStorageKey_ = 'feedback-survey-dismissed';
 114 /** @const @private */
 115 remoting.ButterBar.kHangoutsStorageKey_ = 'hangouts-notice-dismissed';
 116
 117 /**
 118  * Hide the butter bar request and record some basic information about the
 119  * current state of the world in synced storage. This may be useful in the
 120  * future if we want to show the request again. At the moment, the data itself
 121  * is ignored; only its presence or absence is important.
 122  *
 123  * @param {boolean} accepted True if the user clicked the "accept" link;
 124  *     false if they clicked the close icon.
 125  */
 126 remoting.ButterBar.prototype.dismiss = function(accepted) {
 127   var value = {};
 128   value[this.storageKey_] = {
 129     optIn: accepted,
 130     date: new Date(),
 131     version: chrome.runtime.getManifest().version
 132   };
 133   chrome.storage.sync.set(value);
 134
 135   document.getElementById(remoting.ButterBar.kId_).hidden = true;
 136 };