Revert 114236 - Options2: Pull the trigger.

chrome/browser/resources/options2/preferences.js

-// Copyright (c) 2011 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.
-
-cr.define('options', function() {
-
-  /////////////////////////////////////////////////////////////////////////////
-  // Preferences class:
-
-  /**
-   * Preferences class manages access to Chrome profile preferences.
-   * @constructor
-   */
-  function Preferences() {
-  }
-
-  cr.addSingletonGetter(Preferences);
-
-  /**
-   * Sets value of a boolean preference.
-   * and signals its changed value.
-   * @param {string} name Preference name.
-   * @param {boolean} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setBooleanPref = function(name, value, metric) {
-    var argumentList = [name, Boolean(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setBooleanPref', argumentList);
-  };
-
-  /**
-   * Sets value of an integer preference.
-   * and signals its changed value.
-   * @param {string} name Preference name.
-   * @param {number} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setIntegerPref = function(name, value, metric) {
-    var argumentList = [name, Number(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setIntegerPref', argumentList);
-  };
-
-  /**
-   * Sets value of a double-valued preference.
-   * and signals its changed value.
-   * @param {string} name Preference name.
-   * @param {number} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setDoublePref = function(name, value, metric) {
-    var argumentList = [name, Number(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setDoublePref', argumentList);
-  };
-
-  /**
-   * Sets value of a string preference.
-   * and signals its changed value.
-   * @param {string} name Preference name.
-   * @param {string} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setStringPref = function(name, value, metric) {
-    var argumentList = [name, String(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setStringPref', argumentList);
-  };
-
-  /**
-   * Sets value of a string preference that represents a URL
-   * and signals its changed value. The value will be fixed to be a valid URL.
-   * @param {string} name Preference name.
-   * @param {string} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setURLPref = function(name, value, metric) {
-    var argumentList = [name, String(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setURLPref', argumentList);
-  };
-
-  /**
-   * Sets value of a JSON list preference.
-   * and signals its changed value.
-   * @param {string} name Preference name.
-   * @param {Array} value New preference value.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.setListPref = function(name, value, metric) {
-    var argumentList = [name, JSON.stringify(value)];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('setListPref', argumentList);
-  };
-
-  /**
-   * Clears value of a JSON preference.
-   * @param {string} name Preference name.
-   * @param {string} metric User metrics identifier.
-   */
-  Preferences.clearPref = function(name, metric) {
-    var argumentList = [name];
-    if (metric != undefined) argumentList.push(metric);
-    chrome.send('clearPref', argumentList);
-  };
-
-  Preferences.prototype = {
-    __proto__: cr.EventTarget.prototype,
-
-    // Map of registered preferences.
-    registeredPreferences_: {},
-
-    /**
-     * Adds an event listener to the target.
-     * @param {string} type The name of the event.
-     * @param {!Function|{handleEvent:Function}} handler The handler for the
-     *     event. This is called when the event is dispatched.
-     */
-    addEventListener: function(type, handler) {
-      cr.EventTarget.prototype.addEventListener.call(this, type, handler);
-      this.registeredPreferences_[type] = true;
-    },
-
-    /**
-     * Initializes preference reading and change notifications.
-     */
-    initialize: function() {
-      var params1 = ['Preferences.prefsFetchedCallback'];
-      var params2 = ['Preferences.prefsChangedCallback'];
-      for (var prefName in this.registeredPreferences_) {
-        params1.push(prefName);
-        params2.push(prefName);
-      }
-      chrome.send('fetchPrefs', params1);
-      chrome.send('observePrefs', params2);
-    },
-
-    /**
-     * Helper function for flattening of dictionary passed via fetchPrefs
-     * callback.
-     * @param {string} prefix Preference name prefix.
-     * @param {object} dict Map with preference values.
-     */
-    flattenMapAndDispatchEvent_: function(prefix, dict) {
-      for (var prefName in dict) {
-        if (typeof dict[prefName] == 'object' &&
-            !this.registeredPreferences_[prefix + prefName]) {
-          this.flattenMapAndDispatchEvent_(prefix + prefName + '.',
-              dict[prefName]);
-        } else {
-          var event = new cr.Event(prefix + prefName);
-          event.value = dict[prefName];
-          this.dispatchEvent(event);
-        }
-      }
-    }
-  };
-
-  /**
-   * Callback for fetchPrefs method.
-   * @param {object} dict Map of fetched property values.
-   */
-  Preferences.prefsFetchedCallback = function(dict) {
-    Preferences.getInstance().flattenMapAndDispatchEvent_('', dict);
-  };
-
-  /**
-   * Callback for observePrefs method.
-   * @param {array} notification An array defining changed preference values.
-   * notification[0] contains name of the change preference while its new value
-   * is stored in notification[1].
-   */
-  Preferences.prefsChangedCallback = function(notification) {
-    var event = new cr.Event(notification[0]);
-    event.value = notification[1];
-    Preferences.getInstance().dispatchEvent(event);
-  };
-
-  // Export
-  return {
-    Preferences: Preferences
-  };
-
-});