Remove app_remoting.

remoting/webapp/app_remoting/js/keyboard_layouts_menu.js

-// Copyright 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.
-
-/**
- * @fileoverview
- * Class managing the host's available keyboard layouts, allowing the user to
- * select one that matches the local layout, or auto-selecting based on the
- * current locale.
- */
-
-'use strict';
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-/**
- * @param {remoting.ContextMenuAdapter} adapter
- * @constructor
- */
-remoting.KeyboardLayoutsMenu = function(adapter) {
-  /** @private {remoting.ContextMenuAdapter} */
-  this.adapter_ = adapter;
-  /** @private {remoting.SubmenuManager} */
-  this.submenuManager_ = new remoting.SubmenuManager(
-      adapter,
-      chrome.i18n.getMessage(/*i18n-content*/'KEYBOARD_LAYOUTS_SUBMENU_TITLE'),
-      true);
-  /** @private {string} */
-  this.currentLayout_ = '';
-
-  /** @private {function(string, string)} */
-  this.sendExtensionMessage_ = base.doNothing;
-
-  adapter.addListener(this.onContextMenu_.bind(this));
-};
-
-/**
- * @param {Array<string>} layouts The keyboard layouts available on the host,
- *   for example en-US, de-DE
- * @param {string} currentLayout The layout currently active on the host.
- */
-remoting.KeyboardLayoutsMenu.prototype.setLayouts =
-    function(layouts, currentLayout) {
-  this.submenuManager_.removeAll();
-  this.currentLayout_ = '';
-  for (var i = 0; i < layouts.length; ++i) {
-    this.submenuManager_.add(this.makeMenuId_(layouts[i]), layouts[i]);
-  }
-  // Pick a suitable default layout.
-  this.getBestLayout_(layouts, currentLayout,
-                      this.setLayout_.bind(this, false));
-};
-
-/** @param {function(string, string)} callback */
-remoting.KeyboardLayoutsMenu.prototype.setExtensionMessageSender =
-    function(callback) {
-  this.sendExtensionMessage_ = callback;
-};
-
-/**
- * Notify the host that a new keyboard layout has been selected.
- *
- * @param {boolean} saveToLocalStorage If true, save the specified layout to
- *     local storage.
- * @param {string} layout The new keyboard layout.
- * @private
- */
-remoting.KeyboardLayoutsMenu.prototype.setLayout_ =
-    function(saveToLocalStorage, layout) {
-  if (this.currentLayout_ != '') {
-    this.adapter_.updateCheckState(
-        this.makeMenuId_(this.currentLayout_), false);
-  }
-  this.adapter_.updateCheckState(this.makeMenuId_(layout), true);
-  this.currentLayout_ = layout;
-
-  console.log("Setting the keyboard layout to '" + layout + "'");
-  this.sendExtensionMessage_('setKeyboardLayout',
-                             JSON.stringify({layout: layout}));
-  if (saveToLocalStorage) {
-    var params = {};
-    params[remoting.KeyboardLayoutsMenu.KEY_] = layout;
-    chrome.storage.local.set(params);
-  }
-};
-
-/**
- * Choose the best keyboard from the alternatives, based on the following
- * algorithm:
- *   - Search local storage by for a preferred keyboard layout for the app;
- *     if it is found, prefer it over the current locale, falling back on the
- *     latter only if no match is found.
- *   - If the candidate layout matches one of the supported layouts, use it.
- *   - Otherwise, if the language portion of the candidate matches that of
- *     any of the supported layouts, use the first such layout (e.g, en-AU
- *     will match either en-US or en-GB, whichever appears first).
- *   - Otherwise, use the host's current layout.
- *
- * @param {Array<string>} layouts
- * @param {string} currentHostLayout
- * @param {function(string):void} onDone
- * @private
- */
-remoting.KeyboardLayoutsMenu.prototype.getBestLayout_ =
-    function(layouts, currentHostLayout, onDone) {
-  /**
-   * Extract the language id from a string that is either "language" (e.g.
-   * "de") or "language-region" (e.g. "en-US").
-   *
-   * @param {string} layout
-   * @return {string}
-   */
-  var getLanguage = function(layout) {
-    var languageAndRegion = layout.split('-');
-    switch (languageAndRegion.length) {
-      case 1:
-      case 2:
-        return languageAndRegion[0];
-      default:
-        return '';
-    }
-  };
-
-  /** @param {Object<string>} storage */
-  var chooseLayout = function(storage) {
-    var configuredLayout = storage[remoting.KeyboardLayoutsMenu.KEY_];
-    var tryLayouts = [ chrome.i18n.getUILanguage() ];
-    if (configuredLayout && typeof(configuredLayout) == 'string') {
-      tryLayouts.unshift(configuredLayout);
-    }
-    for (var i = 0; i < tryLayouts.length; ++i) {
-      if (layouts.indexOf(tryLayouts[i]) != -1) {
-        onDone(tryLayouts[i]);
-        return;
-      }
-      var language = getLanguage(tryLayouts[i]);
-      if (language) {
-        for (var j = 0; j < layouts.length; ++j) {
-          if (language == getLanguage(layouts[j])) {
-            onDone(layouts[j]);
-            return;
-          }
-        }
-      }
-    }
-    // Neither the stored layout nor UI locale was suitable.
-    onDone(currentHostLayout);
-  };
-
-  chrome.storage.local.get(remoting.KeyboardLayoutsMenu.KEY_, chooseLayout);
-};
-
-/**
- * Create a menu id from the given keyboard layout.
- *
- * @param {string} layout Keyboard layout
- * @return {string}
- * @private
- */
-remoting.KeyboardLayoutsMenu.prototype.makeMenuId_ = function(layout) {
-  return 'layout@' + layout;
-};
-
-/**
- * Handle a click on the application's context menu.
- *
- * @param {OnClickData=} info
- * @private
- */
-remoting.KeyboardLayoutsMenu.prototype.onContextMenu_ = function(info) {
-  var menuItemId = info.menuItemId.toString();
-  var components = menuItemId.split('@');
-  if (components.length == 2 &&
-      this.makeMenuId_(components[1]) === menuItemId) {
-    this.setLayout_(true, components[1]);
-  }
-};
-
-/**
- * @type {string}
- * @private
- */
-remoting.KeyboardLayoutsMenu.KEY_ = 'preferred-keyboard-layout';