third_party/google_input_tools/src/chrome/os/inputview/model.js

   1 // Copyright 2014 The ChromeOS IME Authors. All Rights Reserved.
   2 // limitations under the License.
   3 // See the License for the specific language governing permissions and
   4 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   5 // distributed under the License is distributed on an "AS-IS" BASIS,
   6 // Unless required by applicable law or agreed to in writing, software
   7 //
   8 //      http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // You may obtain a copy of the License at
  11 // you may not use this file except in compliance with the License.
  12 // Licensed under the Apache License, Version 2.0 (the "License");
  13 //
  14 goog.provide('i18n.input.chrome.inputview.Model');
  15
  16 goog.require('goog.array');
  17 goog.require('goog.events.EventTarget');
  18 goog.require('goog.net.jsloader');
  19 goog.require('i18n.input.chrome.inputview.ConditionName');
  20 goog.require('i18n.input.chrome.inputview.Settings');
  21 goog.require('i18n.input.chrome.inputview.SpecNodeName');
  22 goog.require('i18n.input.chrome.inputview.StateManager');
  23 goog.require('i18n.input.chrome.inputview.events.ConfigLoadedEvent');
  24 goog.require('i18n.input.chrome.inputview.events.LayoutLoadedEvent');
  25
  26 goog.scope(function() {
  27 var SpecNodeName = i18n.input.chrome.inputview.SpecNodeName;
  28
  29
  30
  31 /**
  32  * The model.
  33  * @constructor
  34  * @extends {goog.events.EventTarget}
  35  */
  36 i18n.input.chrome.inputview.Model = function() {
  37   goog.base(this);
  38
  39   /**
  40    * The state manager.
  41    *
  42    * @type {!i18n.input.chrome.inputview.StateManager}
  43    */
  44   this.stateManager = new i18n.input.chrome.inputview.StateManager();
  45
  46   /**
  47    * The configuration.
  48    *
  49    * @type {!i18n.input.chrome.inputview.Settings}
  50    */
  51   this.settings = new i18n.input.chrome.inputview.Settings();
  52
  53   /** @private {!Array.<string>} */
  54   this.loadingResources_ = [];
  55
  56   goog.exportSymbol('google.ime.chrome.inputview.onLayoutLoaded',
  57       goog.bind(this.onLayoutLoaded_, this));
  58   goog.exportSymbol('google.ime.chrome.inputview.onConfigLoaded',
  59       goog.bind(this.onConfigLoaded_, this));
  60 };
  61 var Model = i18n.input.chrome.inputview.Model;
  62 goog.inherits(Model, goog.events.EventTarget);
  63
  64
  65 /**
  66  * The path to the layouts directory.
  67  *
  68  * @type {string}
  69  * @private
  70  */
  71 Model.LAYOUTS_PATH_ =
  72     '/inputview_layouts/';
  73
  74
  75 /**
  76  * The path to the content directory.
  77  *
  78  * @type {string}
  79  * @private
  80  */
  81 Model.CONTENT_PATH_ =
  82     '/config/';
  83
  84
  85 /**
  86  * Callback when configuration is loaded.
  87  *
  88  * @param {!Object} data The configuration data.
  89  * @private
  90  */
  91 Model.prototype.onConfigLoaded_ = function(data) {
  92   goog.array.remove(this.loadingResources_, this.getConfigUrl_(
  93       data[SpecNodeName.ID]));
  94   this.dispatchEvent(new i18n.input.chrome.inputview.events.ConfigLoadedEvent(
  95       data));
  96 };
  97
  98
  99 /**
 100  * Gets the layout url.
 101  *
 102  * @param {string} layout .
 103  * @private
 104  * @return {string} The url of the layout data.
 105  */
 106 Model.prototype.getLayoutUrl_ = function(layout) {
 107   return Model.LAYOUTS_PATH_ + layout + '.js';
 108 };
 109
 110
 111 /**
 112  * Gets the keyset configuration url.
 113  *
 114  * @param {string} keyset .
 115  * @private
 116  * @return {string} .
 117  */
 118 Model.prototype.getConfigUrl_ = function(keyset) {
 119   // Strips out all the suffixes in the keyboard code.
 120   var configId = keyset.replace(/\..*$/, '');
 121   return Model.CONTENT_PATH_ + configId + '.js';
 122 };
 123
 124
 125 /**
 126  * Callback when layout is loaded.
 127  *
 128  * @param {!Object} data The layout data.
 129  * @private
 130  */
 131 Model.prototype.onLayoutLoaded_ = function(data) {
 132   goog.array.remove(this.loadingResources_, this.getLayoutUrl_(data[
 133       SpecNodeName.LAYOUT_ID]));
 134   this.dispatchEvent(new i18n.input.chrome.inputview.events.LayoutLoadedEvent(
 135       data));
 136 };
 137
 138
 139 /**
 140  * Loads a layout.
 141  *
 142  * @param {string} layout The layout name.
 143  */
 144 Model.prototype.loadLayout = function(layout) {
 145   var url = this.getLayoutUrl_(layout);
 146   if (!goog.array.contains(this.loadingResources_, url)) {
 147     this.loadingResources_.push(url);
 148     goog.net.jsloader.load(url);
 149   }
 150 };
 151
 152
 153 /**
 154  * Loads the configuration for the keyboard code.
 155  *
 156  * @param {string} keyboardCode The keyboard code.
 157  */
 158 Model.prototype.loadConfig = function(keyboardCode) {
 159   var url = this.getConfigUrl_(keyboardCode);
 160   if (!goog.array.contains(this.loadingResources_, url)) {
 161     this.loadingResources_.push(url);
 162     goog.net.jsloader.load(url);
 163   }
 164 };
 165
 166 });  // goog.scope