Add third_party/google-input-tools: Take 2

third_party/google_input_tools/src/chrome/os/inputview/m17nmodel.js

+// Copyright 2014 The ChromeOS IME Authors. All Rights Reserved.
+// limitations under the License.
+// See the License for the specific language governing permissions and
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// Unless required by applicable law or agreed to in writing, software
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// You may obtain a copy of the License at
+// you may not use this file except in compliance with the License.
+// Licensed under the Apache License, Version 2.0 (the "License");
+//
+goog.provide('i18n.input.chrome.inputview.M17nModel');
+
+goog.require('goog.events.EventHandler');
+goog.require('goog.events.EventTarget');
+goog.require('i18n.input.chrome.inputview.SpecNodeName');
+goog.require('i18n.input.chrome.inputview.content.util');
+goog.require('i18n.input.chrome.vk.KeyCode');
+goog.require('i18n.input.chrome.vk.Model');
+
+
+
+/**
+ * The model to legacy cloud vk configuration.
+ *
+ * @constructor
+ * @extends {goog.events.EventTarget}
+ */
+i18n.input.chrome.inputview.M17nModel = function() {
+  goog.base(this);
+
+  /**
+   * The event handler.
+   *
+   * @type {!goog.events.EventHandler}
+   * @private
+   */
+  this.handler_ = new goog.events.EventHandler(this);
+
+  /**
+   * The model for cloud vk.
+   *
+   * @type {!i18n.input.chrome.vk.Model}
+   * @private
+   */
+  this.model_ = new i18n.input.chrome.vk.Model();
+  this.handler_.listen(this.model_,
+      i18n.input.chrome.vk.EventType.LAYOUT_LOADED,
+      this.onLayoutLoaded_);
+};
+goog.inherits(i18n.input.chrome.inputview.M17nModel,
+    goog.events.EventTarget);
+
+
+/**
+ * The active layout view.
+ *
+ * @type {!i18n.input.chrome.vk.ParsedLayout}
+ * @private
+ */
+i18n.input.chrome.inputview.M17nModel.prototype.layoutView_;
+
+
+/**
+ * Loads the configuration.
+ *
+ * @param {string} lang The m17n keyboard layout code (with 'm17n:' prefix).
+ */
+i18n.input.chrome.inputview.M17nModel.prototype.loadConfig = function(lang) {
+  var m17nMatches = lang.match(/^m17n:(.*)/);
+  if (m17nMatches && m17nMatches[1]) {
+    this.model_.loadLayout(m17nMatches[1]);
+  }
+};
+
+
+/**
+ * Callback when legacy model is loaded.
+ *
+ * @param {!i18n.input.chrome.vk.LayoutEvent} e The event.
+ * @private
+ */
+i18n.input.chrome.inputview.M17nModel.prototype.onLayoutLoaded_ = function(
+    e) {
+  var layoutView = /** @type {!i18n.input.chrome.vk.ParsedLayout} */
+      (e.layoutView);
+  this.layoutView_ = layoutView;
+  var is102 = layoutView.view.is102;
+  var codes = is102 ? i18n.input.chrome.vk.KeyCode.CODES102 :
+      i18n.input.chrome.vk.KeyCode.CODES101;
+  var keyCount = is102 ? 48 : 47;
+  var keyCharacters = [];
+  for (var i = 0; i < keyCount; i++) {
+    var characters = this.findCharacters_(layoutView.view.mappings,
+        codes[i]);
+    keyCharacters.push(characters);
+  }
+  keyCharacters.push(['\u0020', '\u0020']);
+  var hasAltGrKey = !!layoutView.view.mappings['c'] &&
+      layoutView.view.mappings['c'] != layoutView.view.mappings[''];
+  var skvPrefix = is102 ? '102kbd-k-' : '101kbd-k-';
+  var skPrefix = layoutView.view.id + '-k-';
+  var data = i18n.input.chrome.inputview.content.util.createData(keyCharacters,
+      skvPrefix, is102, hasAltGrKey);
+  if (data) {
+    data[i18n.input.chrome.inputview.SpecNodeName.TITLE] =
+        layoutView.view.title;
+    data[i18n.input.chrome.inputview.SpecNodeName.ID] =
+        'm17n:' + e.layoutCode;
+    this.dispatchEvent(new i18n.input.chrome.inputview.events.
+        ConfigLoadedEvent(data));
+  }
+};
+
+
+/**
+ * Finds out the characters for the key.
+ *
+ * @param {!Object} mappings The mappings.
+ * @param {string} code The code.
+ * @return {!Array.<string>} The characters for the code.
+ * @private
+ */
+i18n.input.chrome.inputview.M17nModel.prototype.findCharacters_ = function(
+    mappings, code) {
+  var characters = [];
+  var states = [
+    '',
+    's',
+    'c',
+    'sc',
+    'l',
+    'sl',
+    'cl',
+    'scl'
+  ];
+  for (var i = 0; i < states.length; i++) {
+    if (mappings[states[i]] && mappings[states[i]][code]) {
+      characters[i] = mappings[states[i]][code][1];
+    } else if (code == '\u0020') {
+      characters[i] = '\u0020';
+    } else {
+      characters[i] = '';
+    }
+  }
+  return characters;
+};
+
+
+/** @override */
+i18n.input.chrome.inputview.M17nModel.prototype.disposeInternal = function() {
+  goog.dispose(this.handler_);
+
+  goog.base(this, 'disposeInternal');
+};