Add third_party/google-input-tools: Take 2

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

Index: third_party/google_input_tools/src/chrome/os/inputview/controller.js
diff --git a/third_party/google_input_tools/src/chrome/os/inputview/controller.js b/third_party/google_input_tools/src/chrome/os/inputview/controller.js
new file mode 100644
index 0000000000000000000000000000000000000000..27f305bdb0a1d4021ebf4d8ec6b4ca19fe702b80
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+++ b/third_party/google_input_tools/src/chrome/os/inputview/controller.js
@@ -0,0 +1,1658 @@
+// 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.Controller');
+
+goog.require('goog.Disposable');
+goog.require('goog.array');
+goog.require('goog.async.Delay');
+goog.require('goog.dom');
+goog.require('goog.dom.classlist');
+goog.require('goog.events.EventHandler');
+goog.require('goog.events.EventType');
+goog.require('goog.i18n.bidi');
+goog.require('goog.object');
+goog.require('i18n.input.chrome.DataSource');
+goog.require('i18n.input.chrome.inputview.Adapter');
+goog.require('i18n.input.chrome.inputview.CandidatesInfo');
+goog.require('i18n.input.chrome.inputview.ConditionName');
+goog.require('i18n.input.chrome.inputview.Css');
+goog.require('i18n.input.chrome.inputview.KeyboardContainer');
+goog.require('i18n.input.chrome.inputview.M17nModel');
+goog.require('i18n.input.chrome.inputview.Model');
+goog.require('i18n.input.chrome.inputview.PerfTracker');
+goog.require('i18n.input.chrome.inputview.ReadyState');
+goog.require('i18n.input.chrome.inputview.Settings');
+goog.require('i18n.input.chrome.inputview.SizeSpec');
+goog.require('i18n.input.chrome.inputview.SoundController');
+goog.require('i18n.input.chrome.inputview.SpecNodeName');
+goog.require('i18n.input.chrome.inputview.StateType');
+goog.require('i18n.input.chrome.inputview.Statistics');
+goog.require('i18n.input.chrome.inputview.SwipeDirection');
+goog.require('i18n.input.chrome.inputview.elements.ElementType');
+goog.require('i18n.input.chrome.inputview.elements.content.Candidate');
+goog.require('i18n.input.chrome.inputview.elements.content.CandidateView');
+goog.require('i18n.input.chrome.inputview.elements.content.ExpandedCandidateView');
+goog.require('i18n.input.chrome.inputview.elements.content.MenuView');
+goog.require('i18n.input.chrome.inputview.events.EventType');
+goog.require('i18n.input.chrome.inputview.events.KeyCodes');
+goog.require('i18n.input.chrome.inputview.handler.PointerHandler');
+goog.require('i18n.input.chrome.inputview.util');
+goog.require('i18n.input.chrome.message.ContextType');
+goog.require('i18n.input.chrome.message.Name');
+goog.require('i18n.input.chrome.message.Type');
+goog.require('i18n.input.lang.InputToolCode');
+
+
+
+goog.scope(function() {
+var CandidateType = i18n.input.chrome.inputview.elements.content.Candidate.Type;
+var Candidate = i18n.input.chrome.inputview.elements.content.Candidate;
+var CandidateView = i18n.input.chrome.inputview.elements.content.CandidateView;
+var ConditionName = i18n.input.chrome.inputview.ConditionName;
+var ContextType = i18n.input.chrome.message.ContextType;
+var Css = i18n.input.chrome.inputview.Css;
+var ElementType = i18n.input.chrome.inputview.elements.ElementType;
+var EventType = i18n.input.chrome.inputview.events.EventType;
+var ExpandedCandidateView = i18n.input.chrome.inputview.elements.content.
+    ExpandedCandidateView;
+var InputToolCode = i18n.input.lang.InputToolCode;
+var KeyCodes = i18n.input.chrome.inputview.events.KeyCodes;
+var MenuView = i18n.input.chrome.inputview.elements.content.MenuView;
+var Name = i18n.input.chrome.message.Name;
+var PerfTracker = i18n.input.chrome.inputview.PerfTracker;
+var SizeSpec = i18n.input.chrome.inputview.SizeSpec;
+var SpecNodeName = i18n.input.chrome.inputview.SpecNodeName;
+var StateType = i18n.input.chrome.inputview.StateType;
+var content = i18n.input.chrome.inputview.elements.content;
+var SoundController = i18n.input.chrome.inputview.SoundController;
+var Sounds = i18n.input.chrome.inputview.Sounds;
+var util = i18n.input.chrome.inputview.util;
+
+
+
+/**
+ * The controller of the input view keyboard.
+ *
+ * @param {string} keyset The keyboard keyset.
+ * @param {string} languageCode The language code for this keyboard.
+ * @param {string} passwordLayout The layout for password box.
+ * @param {string} name The input tool name.
+ * @constructor
+ * @extends {goog.Disposable}
+ */
+i18n.input.chrome.inputview.Controller = function(keyset, languageCode,
+    passwordLayout, name) {
+  /**
+   * The model.
+   *
+   * @type {!i18n.input.chrome.inputview.Model}
+   * @private
+   */
+  this.model_ = new i18n.input.chrome.inputview.Model();
+
+  /** @private {!i18n.input.chrome.inputview.PerfTracker} */
+  this.perfTracker_ = new i18n.input.chrome.inputview.PerfTracker();
+
+  /**
+   * The layout map.
+   *
+   * @type {!Object.<string, !Object>}
+   * @private
+   */
+  this.layoutDataMap_ = {};
+
+  /**
+   * The keyset data map.
+   *
+   * @type {!Object.<string, !Object>}
+   * @private
+   */
+  this.keysetDataMap_ = {};
+
+  /**
+   * The event handler.
+   *
+   * @type {!goog.events.EventHandler}
+   * @private
+   */
+  this.handler_ = new goog.events.EventHandler(this);
+
+  /**
+   * The m17n model.
+   *
+   * @type {!i18n.input.chrome.inputview.M17nModel}
+   * @private
+   */
+  this.m17nModel_ = new i18n.input.chrome.inputview.M17nModel();
+
+  /**
+   * The pointer handler.
+   *
+   * @type {!i18n.input.chrome.inputview.handler.PointerHandler}
+   * @private
+   */
+  this.pointerHandler_ = new i18n.input.chrome.inputview.handler.
+      PointerHandler();
+
+  /**
+   * The statistics object for recording metrics values.
+   *
+   * @type {!i18n.input.chrome.inputview.Statistics}
+   * @private
+   */
+  this.statistics_ = i18n.input.chrome.inputview.Statistics.getInstance();
+
+  /** @private {!i18n.input.chrome.inputview.ReadyState} */
+  this.readyState_ = new i18n.input.chrome.inputview.ReadyState();
+
+  /** @private {!i18n.input.chrome.inputview.Adapter} */
+  this.adapter_ = new i18n.input.chrome.inputview.Adapter(this.readyState_);
+
+  /** @private {!i18n.input.chrome.inputview.KeyboardContainer} */
+  this.container_ = new i18n.input.chrome.inputview.KeyboardContainer(
+      this.adapter_);
+  this.container_.render();
+
+  /** @private {!i18n.input.chrome.inputview.SoundController} */
+  this.soundController_ = new SoundController(false);
+
+  /**
+   * The context type and keyset mapping group by input method id.
+   * key: input method id.
+   * value: Object
+   *    key: context type string.
+   *    value: keyset string.
+   *
+   * @private {!Object.<string, !Object.<string, string>>}
+   */
+  this.contextTypeToKeysetMap_ = {};
+
+  this.initialize(keyset, languageCode, passwordLayout, name);
+  /**
+   * The suggestions.
+   * Note: sets a default empty result to avoid null check.
+   *
+   * @private {!i18n.input.chrome.inputview.CandidatesInfo}
+   */
+  this.candidatesInfo_ = i18n.input.chrome.inputview.CandidatesInfo.getEmpty();
+
+  this.registerEventHandler_();
+};
+goog.inherits(i18n.input.chrome.inputview.Controller,
+    goog.Disposable);
+var Controller = i18n.input.chrome.inputview.Controller;
+
+
+/**
+ * @define {boolean} Flag to disable handwriting.
+ */
+Controller.DISABLE_HWT = false;
+
+
+/**
+ * A flag to indicate whether the shift is for auto capital.
+ *
+ * @private {boolean}
+ */
+Controller.prototype.shiftForAutoCapital_ = false;
+
+
+/**
+ * @define {boolean} Flag to indicate whether it is debugging.
+ */
+Controller.DEV = false;
+
+
+/**
+ * The handwriting view code, use the code can switch handwriting panel view.
+ *
+ * @const {string}
+ * @private
+ */
+Controller.HANDWRITING_VIEW_CODE_ = 'hwt';
+
+
+/**
+ * The emoji view code, use the code can switch to emoji.
+ *
+ * @const {string}
+ * @private
+ */
+Controller.EMOJI_VIEW_CODE_ = 'emoji';
+
+
+/**
+ * The limitation for backspace repeat time to avoid unexpected
+ * problem that backspace is held all the time.
+ *
+ * @private {number}
+ */
+Controller.BACKSPACE_REPEAT_LIMIT_ = 255;
+
+
+/**
+ * The repeated times of the backspace.
+ *
+ * @private {number}
+ */
+Controller.prototype.backspaceRepeated_ = 0;
+
+
+/**
+ * The handwriting input tool code suffix.
+ *
+ * @const {string}
+ * @private
+ */
+Controller.HANDWRITING_CODE_SUFFIX_ = '-t-i0-handwrit';
+
+
+/**
+ * True if the settings is loaded.
+ *
+ * @type {boolean}
+ */
+Controller.prototype.isSettingReady = false;
+
+
+/**
+ * True if the keyboard is set up.
+ * Note: This flag is only used for automation testing.
+ *
+ * @type {boolean}
+ */
+Controller.prototype.isKeyboardReady = false;
+
+
+/**
+ * The auto repeat timer for backspace hold.
+ *
+ * @type {goog.async.Delay}
+ * @private
+ */
+Controller.prototype.backspaceAutoRepeat_;
+
+
+/**
+ * The active keyboard code.
+ *
+ * @type {string}
+ * @private
+ */
+Controller.prototype.currentKeyset_ = '';
+
+
+/**
+ * The current input method id.
+ *
+ * @private {string}
+ */
+Controller.prototype.currentInputmethod_ = '';
+
+
+/**
+ * The operations on candidates.
+ *
+ * @enum {number}
+ */
+Controller.CandidatesOperation = {
+  NONE: 0,
+  EXPAND: 1,
+  SHRINK: 2
+};
+
+
+/**
+ * The active language code.
+ *
+ * @type {string}
+ * @private
+ */
+Controller.prototype.lang_;
+
+
+/**
+ * The password keyset.
+ *
+ * @private {string}
+ */
+Controller.prototype.passwordKeyset_ = '';
+
+
+/**
+ * The soft key map, because key configuration is loaded before layout,
+ * controller needs this varaible to save it and hook into keyboard view.
+ *
+ * @type {!Array.<!content.SoftKey>}
+ * @private
+ */
+Controller.prototype.softKeyList_;
+
+
+/**
+ * The mapping from soft key id to soft key view id.
+ *
+ * @type {!Object.<string, string>}
+ * @private
+ */
+Controller.prototype.mapping_;
+
+
+/**
+ * The dead key.
+ *
+ * @type {string}
+ * @private
+ */
+Controller.prototype.deadKey_ = '';
+
+
+/**
+ * The input tool name.
+ *
+ * @type {string}
+ * @private
+ */
+Controller.prototype.title_;
+
+
+/**
+ * Registers event handlers.
+ * @private
+ */
+Controller.prototype.registerEventHandler_ = function() {
+  this.handler_.
+      listen(this.model_,
+          EventType.LAYOUT_LOADED,
+          this.onLayoutLoaded_).
+      listen(this.model_,
+          EventType.CONFIG_LOADED,
+          this.onConfigLoaded_).
+      listen(this.m17nModel_,
+          EventType.CONFIG_LOADED,
+          this.onConfigLoaded_).
+      listen(this.pointerHandler_, [
+            EventType.LONG_PRESS,
+            EventType.CLICK,
+            EventType.DOUBLE_CLICK,
+            EventType.DOUBLE_CLICK_END,
+            EventType.POINTER_UP,
+            EventType.POINTER_DOWN,
+            EventType.POINTER_OVER,
+            EventType.POINTER_OUT,
+            EventType.SWIPE
+          ], this.onPointerEvent_).
+      listen(window, goog.events.EventType.RESIZE, this.resize).
+      listen(this.adapter_,
+          i18n.input.chrome.inputview.events.EventType.
+              SURROUNDING_TEXT_CHANGED,
+          this.onSurroundingTextChanged_).
+      listen(this.adapter_,
+          i18n.input.chrome.DataSource.EventType.CANDIDATES_BACK,
+          this.onCandidatesBack_).
+      listen(this.adapter_,
+          i18n.input.chrome.inputview.events.EventType.CONTEXT_FOCUS,
+          this.onContextFocus_).
+      listen(this.adapter_,
+          i18n.input.chrome.inputview.events.EventType.CONTEXT_BLUR,
+          this.onContextBlur_).
+      listen(this.adapter_,
+          i18n.input.chrome.inputview.events.EventType.VISIBILITY_CHANGE,
+          this.onVisibilityChange_).
+      listen(this.adapter_,
+          i18n.input.chrome.inputview.events.EventType.SETTINGS_READY,
+          this.onSettingsReady_).
+      listen(this.adapter_,
+          i18n.input.chrome.message.Type.UPDATE_SETTINGS,
+          this.onUpdateSettings_);
+};
+
+
+/**
+ * Callback for updating settings.
+ *
+ * @param {!i18n.input.chrome.message.Event} e .
+ * @private
+ */
+Controller.prototype.onUpdateSettings_ = function(e) {
+  var settings = this.model_.settings;
+  if (goog.isDef(e.msg['autoSpace'])) {
+    settings.autoSpace = e.msg['autoSpace'];
+  }
+  if (goog.isDef(e.msg['autoCapital'])) {
+    settings.autoCapital = e.msg['autoCapital'];
+  }
+  if (goog.isDef(e.msg['candidatesNavigation'])) {
+    settings.candidatesNavigation = e.msg['candidatesNavigation'];
+  }
+  if (goog.isDef(e.msg['supportCompact'])) {
+    settings.supportCompact = e.msg['supportCompact'];
+  }
+  if (goog.isDef(e.msg[Name.KEYSET])) {
+    this.contextTypeToKeysetMap_[this.currentInputMethod_][
+        ContextType.DEFAULT] = e.msg[Name.KEYSET];
+  }
+  if (goog.isDef(e.msg['enableLongPress'])) {
+    settings.enableLongPress = e.msg['enableLongPress'];
+  }
+  if (goog.isDef(e.msg['doubleSpacePeriod'])) {
+    settings.doubleSpacePeriod = e.msg['doubleSpacePeriod'];
+  }
+  if (goog.isDef(e.msg['soundOnKeypress'])) {
+    settings.soundOnKeypress = e.msg['soundOnKeypress'];
+    this.soundController_.setEnabled(settings.soundOnKeypress);
+  }
+  this.perfTracker_.tick(PerfTracker.TickName.BACKGROUND_SETTINGS_FETCHED);
+  var isPassword = this.adapter_.isPasswordBox();
+  this.switchToKeySet(this.getActiveKeyset_());
+};
+
+
+/**
+ * Callback for setting ready.
+ *
+ * @private
+ */
+Controller.prototype.onSettingsReady_ = function() {
+  if (this.isSettingReady) {
+    return;
+  }
+
+  this.isSettingReady = true;
+  var keysetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_];
+  if (this.adapter_.isA11yMode) {
+    keysetMap[ContextType.PASSWORD] = keysetMap[ContextType.DEFAULT] =
+        util.getConfigName(keysetMap[ContextType.DEFAULT]);
+  } else {
+    var preferredKeyset = /** @type {string} */ (this.model_.settings.
+        getPreference(util.getConfigName(
+            keysetMap[ContextType.DEFAULT])));
+    if (preferredKeyset) {
+      keysetMap[ContextType.PASSWORD] = keysetMap[ContextType.DEFAULT] =
+          preferredKeyset;
+    }
+  }
+  this.maybeCreateViews_();
+  this.switchToKeySet(this.getActiveKeyset_());
+};
+
+
+/**
+ * Gets the data for spatial module.
+ *
+ * @param {!content.SoftKey} key .
+ * @param {number} x The x-offset of the touch point.
+ * @param {number} y The y-offset of the touch point.
+ * @return {!Object} .
+ * @private
+ */
+Controller.prototype.getSpatialData_ = function(key, x, y) {
+  var items = [];
+  items.push([this.getKeyContent_(key), key.estimator.estimateInLogSpace(x, y)
+      ]);
+  for (var i = 0; i < key.nearbyKeys.length; i++) {
+    var nearByKey = key.nearbyKeys[i];
+    var content = this.getKeyContent_(nearByKey);
+    if (content && util.REGEX_LANGUAGE_MODEL_CHARACTERS.test(content)) {
+      items.push([content, nearByKey.estimator.estimateInLogSpace(x, y)]);
+    }
+  }
+  goog.array.sort(items, function(item1, item2) {
+    return item1[1] - item2[1];
+  });
+  var sources = items.map(function(item) {
+    return item[0].toLowerCase();
+  });
+  var possibilities = items.map(function(item) {
+    return item[1];
+  });
+  return {
+    'sources': sources,
+    'possibilities': possibilities
+  };
+};
+
+
+/**
+ * Gets the key content.
+ *
+ * @param {!content.SoftKey} key .
+ * @return {string} .
+ * @private
+ */
+Controller.prototype.getKeyContent_ = function(key) {
+  if (key.type == i18n.input.chrome.inputview.elements.ElementType.
+      CHARACTER_KEY) {
+    key = /** @type {!content.CharacterKey} */ (key);
+    return key.getActiveCharacter();
+  }
+  if (key.type == i18n.input.chrome.inputview.elements.ElementType.
+      COMPACT_KEY) {
+    key = /** @type {!content.FunctionalKey} */ (key);
+    return key.text;
+  }
+  return '';
+};
+
+
+/**
+ * Callback for pointer event.
+ *
+ * @param {!i18n.input.chrome.inputview.events.PointerEvent} e .
+ * @private
+ */
+Controller.prototype.onPointerEvent_ = function(e) {
+  if ((this.adapter_.isChromeVoxOn || !this.model_.settings.enableLongPress) &&
+      e.type == EventType.LONG_PRESS) {
+    return;
+  }
+
+  if (e.view) {
+    this.handlePointerAction_(e.view, e);
+  } else {
+    var tabbableKeysets = [
+      Controller.HANDWRITING_VIEW_CODE_,
+      Controller.EMOJI_VIEW_CODE_];
+    if (goog.array.contains(tabbableKeysets, this.currentKeyset_)) {
+      this.resetAll_();
+      this.switchToKeySet(this.container_.currentKeysetView.fromKeyset);
+    }
+  }
+};
+
+
+/**
+ * Handles the swipe action.
+ *
+ * @param {!i18n.input.chrome.inputview.elements.Element} view The view, for
+ *     swipe event, the view would be the soft key which starts the swipe.
+ * @param {!i18n.input.chrome.inputview.events.SwipeEvent} e The swipe event.
+ * @private
+ */
+Controller.prototype.handleSwipeAction_ = function(view, e) {
+  var direction = e.direction;
+  if (this.container_.altDataView.isVisible()) {
+    this.container_.altDataView.highlightItem(e.x, e.y);
+    return;
+  }
+
+  if (view.type == ElementType.CHARACTER_KEY) {
+    view = /** @type {!content.CharacterKey} */ (view);
+    if (direction & i18n.input.chrome.inputview.SwipeDirection.UP ||
+        direction & i18n.input.chrome.inputview.SwipeDirection.DOWN) {
+      var ch = view.getCharacterByGesture(!!(direction &
+          i18n.input.chrome.inputview.SwipeDirection.UP));
+      if (ch) {
+        view.flickerredCharacter = ch;
+      }
+    }
+  }
+
+  if (view.type == ElementType.COMPACT_KEY) {
+    view = /** @type {!content.CompactKey} */ (view);
+    if ((direction & i18n.input.chrome.inputview.SwipeDirection.UP) &&
+        view.hintText) {
+      view.flickerredCharacter = view.hintText;
+    }
+  }
+};
+
+
+/**
+ * Execute a command.
+ *
+ * @param {!i18n.input.chrome.inputview.elements.content.MenuView.Command}
+ *     command The command that about to be executed.
+ * @param {string=} opt_arg The optional command argument.
+ * @private
+ */
+Controller.prototype.executeCommand_ = function(command, opt_arg) {
+  var CommandEnum = MenuView.Command;
+  switch (command) {
+    case CommandEnum.SWITCH_IME:
+      var inputMethodId = opt_arg;
+      if (inputMethodId) {
+        this.adapter_.switchToInputMethod(inputMethodId);
+      }
+      break;
+
+    case CommandEnum.SWITCH_KEYSET:
+      var keyset = opt_arg;
+      if (keyset) {
+        this.statistics_.recordSwitch(keyset);
+        this.switchToKeySet(keyset);
+      }
+      break;
+    case CommandEnum.OPEN_EMOJI:
+      this.switchToKeySet(Controller.EMOJI_VIEW_CODE_);
+      break;
+
+    case CommandEnum.OPEN_HANDWRITING:
+      // TODO: remember handwriting keyset.
+      this.switchToKeySet(Controller.HANDWRITING_VIEW_CODE_);
+      break;
+
+    case CommandEnum.OPEN_SETTING:
+      if (window.inputview) {
+        inputview.openSettings();
+      }
+      break;
+  }
+};
+
+
+/**
+ * Handles the pointer action.
+ *
+ * @param {!i18n.input.chrome.inputview.elements.Element} view The view.
+ * @param {!i18n.input.chrome.inputview.events.PointerEvent} e .
+ * @private
+ */
+Controller.prototype.handlePointerAction_ = function(view, e) {
+  if (e.type == i18n.input.chrome.inputview.events.EventType.SWIPE) {
+    e = /** @type {!i18n.input.chrome.inputview.events.SwipeEvent} */ (e);
+    this.handleSwipeAction_(view, e);
+  }
+  switch (view.type) {
+    case ElementType.BACK_BUTTON:
+      if (e.type == EventType.POINTER_UP) {
+        this.switchToKeySet(this.container_.currentKeysetView.fromKeyset);
+      }
+      return;
+    case ElementType.EXPAND_CANDIDATES:
+      if (e.type == EventType.POINTER_UP) {
+        this.showCandidates_(this.candidatesInfo_.source,
+            this.candidatesInfo_.candidates,
+            Controller.CandidatesOperation.EXPAND);
+      }
+      return;
+    case ElementType.SHRINK_CANDIDATES:
+      if (e.type == EventType.POINTER_UP) {
+        this.showCandidates_(this.candidatesInfo_.source,
+            this.candidatesInfo_.candidates,
+            Controller.CandidatesOperation.SHRINK);
+      }
+      return;
+    case ElementType.CANDIDATE:
+      view = /** @type {!Candidate} */ (view);
+      if (e.type == EventType.POINTER_UP) {
+        if (view.candidateType == CandidateType.CANDIDATE) {
+          this.adapter_.selectCandidate(view.candidate);
+        } else if (view.candidateType == CandidateType.NUMBER) {
+          this.adapter_.commitText(view.candidate[Name.CANDIDATE]);
+        }
+        this.container_.cleanStroke();
+      }
+      if (e.type == EventType.POINTER_OUT || e.type == EventType.POINTER_UP) {
+        view.setHighlighted(false);
+      } else if (e.type == EventType.POINTER_DOWN ||
+          e.type == EventType.POINTER_OVER) {
+        view.setHighlighted(true);
+      }
+      return;
+
+    case ElementType.ALTDATA_VIEW:
+      view = /** @type {!content.AltDataView} */ (view);
+      if (e.type == EventType.POINTER_DOWN &&
+          e.target == view.getCoverElement()) {
+        view.hide();
+      } else if (e.type == EventType.POINTER_UP) {
+        var ch = view.getHighlightedCharacter();
+        this.adapter_.sendKeyDownAndUpEvent(ch, view.triggeredBy.id,
+            view.triggeredBy.keyCode,
+            {'sources': [ch.toLowerCase()], 'possibilities': [1]});
+        view.hide();
+        this.clearUnstickyState_();
+      }
+      return;
+
+    case ElementType.MENU_ITEM:
+      view = /** @type {!content.MenuItem} */ (view);
+      if (e.type == EventType.CLICK) {
+        this.resetAll_();
+        this.executeCommand_.apply(this, view.getCommand());
+        this.container_.menuView.hide();
+      }
+      view.setHighlighted(e.type == EventType.POINTER_DOWN ||
+          e.type == EventType.POINTER_OVER);
+      // TODO: Add chrome vox support.
+      return;
+
+    case ElementType.MENU_VIEW:
+      view = /** @type {!MenuView} */ (view);
+
+      if (e.type == EventType.POINTER_DOWN &&
+          e.target == view.getCoverElement()) {
+        view.hide();
+      }
+      return;
+
+    case ElementType.EMOJI_KEY:
+      if (e.type == EventType.POINTER_UP) {
+        if (!this.container_.currentKeysetView.isDragging && view.text != '') {
+          this.adapter_.commitText(view.text);
+        }
+      }
+      return;
+
+    case ElementType.HWT_PRIVACY_GOT_IT:
+      this.adapter_.sendHwtPrivacyConfirmMessage();
+      return;
+
+    case ElementType.SOFT_KEY_VIEW:
+      // Delegates the events on the soft key view to its soft key.
+      view = /** @type {!i18n.input.chrome.inputview.elements.layout.
+          SoftKeyView} */ (view);
+      if (!view.softKey) {
+        return;
+      }
+      view = view.softKey;
+  }
+
+  if (view.type != ElementType.MODIFIER_KEY &&
+      !this.container_.altDataView.isVisible() &&
+      !this.container_.menuView.isVisible()) {
+    // The highlight of the modifier key is depending on the state instead
+    // of the key down or up.
+    if (e.type == EventType.POINTER_OVER || e.type == EventType.POINTER_DOWN ||
+        e.type == EventType.DOUBLE_CLICK) {
+      view.setHighlighted(true);
+    } else if (e.type == EventType.POINTER_OUT ||
+        e.type == EventType.POINTER_UP ||
+        e.type == EventType.DOUBLE_CLICK_END) {
+      view.setHighlighted(false);
+    }
+  }
+  this.handlePointerEventForSoftKey_(
+      /** @type {!content.SoftKey} */ (view), e);
+  this.updateContextModifierState_();
+};
+
+
+/**
+ * Handles softkey of the pointer action.
+ *
+ * @param {!content.SoftKey} softKey .
+ * @param {!i18n.input.chrome.inputview.events.PointerEvent} e .
+ * @private
+ */
+Controller.prototype.handlePointerEventForSoftKey_ = function(softKey, e) {
+  var key;
+  switch (softKey.type) {
+    case ElementType.CANDIDATES_PAGE_UP:
+      if (e.type == EventType.POINTER_UP) {
+        this.container_.expandedCandidateView.pageUp();
+      }
+      break;
+    case ElementType.CANDIDATES_PAGE_DOWN:
+      if (e.type == EventType.POINTER_UP) {
+        this.container_.expandedCandidateView.pageDown();
+      }
+      break;
+    case ElementType.CHARACTER_KEY:
+      key = /** @type {!content.CharacterKey} */ (softKey);
+      if (e.type == EventType.LONG_PRESS) {
+        this.container_.altDataView.show(
+            key, goog.i18n.bidi.isRtlLanguage(this.languageCode_));
+      } else if (e.type == EventType.POINTER_UP) {
+        this.model_.stateManager.triggerChording();
+        var ch = key.getActiveCharacter();
+        this.adapter_.sendKeyDownAndUpEvent(ch, key.id, key.keyCode,
+            this.getSpatialData_(key, e.x, e.y));
+        this.clearUnstickyState_();
+        key.flickerredCharacter = '';
+      }
+      break;
+
+    case ElementType.MODIFIER_KEY:
+      key = /** @type {!content.ModifierKey} */ (softKey);
+      var isStateEnabled = this.model_.stateManager.hasState(key.toState);
+      var isChording = this.model_.stateManager.isChording(key.toState);
+      if (e.type == EventType.POINTER_DOWN) {
+        this.changeState_(key.toState, !isStateEnabled, true);
+        this.model_.stateManager.setKeyDown(key.toState, true);
+      } else if (e.type == EventType.POINTER_UP || e.type == EventType.
+          POINTER_OUT) {
+        if (isChording) {
+          this.changeState_(key.toState, false, false);
+        } else if (key.toState != StateType.CAPSLOCK &&
+            this.model_.stateManager.isKeyDown(key.toState)) {
+          this.changeState_(key.toState, isStateEnabled, false);
+        }
+        this.model_.stateManager.setKeyDown(key.toState, false);
+      } else if (e.type == EventType.DOUBLE_CLICK) {
+        this.changeState_(key.toState, isStateEnabled, true);
+      } else if (e.type == EventType.LONG_PRESS) {
+        if (!isChording) {
+          this.changeState_(key.toState, true, true);
+          this.model_.stateManager.setKeyDown(key.toState, false);
+        }
+      }
+      break;
+
+    case ElementType.BACKSPACE_KEY:
+      key = /** @type {!content.FunctionalKey} */ (softKey);
+      if (e.type == EventType.POINTER_DOWN) {
+        this.backspaceTick_();
+      } else if (e.type == EventType.POINTER_UP || e.type == EventType.
+          POINTER_OUT) {
+        this.stopBackspaceAutoRepeat_();
+        this.adapter_.sendKeyUpEvent('\u0008', KeyCodes.BACKSPACE);
+      }
+      break;
+
+    case ElementType.TAB_KEY:
+      key = /** @type {!content.FunctionalKey} */ (softKey);
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('\u0009', KeyCodes.TAB);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('\u0009', KeyCodes.TAB);
+      }
+      break;
+
+    case ElementType.ENTER_KEY:
+      key = /** @type {!content.FunctionalKey} */ (softKey);
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('\u000D', KeyCodes.ENTER);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('\u000D', KeyCodes.ENTER);
+      }
+      break;
+
+    case ElementType.ARROW_UP:
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('', KeyCodes.ARROW_UP);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('', KeyCodes.ARROW_UP);
+      }
+      break;
+
+    case ElementType.ARROW_DOWN:
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('', KeyCodes.ARROW_DOWN);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('', KeyCodes.ARROW_DOWN);
+      }
+      break;
+
+    case ElementType.ARROW_LEFT:
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('', KeyCodes.ARROW_LEFT);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('', KeyCodes.ARROW_LEFT);
+      }
+      break;
+
+    case ElementType.ARROW_RIGHT:
+      if (e.type == EventType.POINTER_DOWN) {
+        this.adapter_.sendKeyDownEvent('', KeyCodes.ARROW_RIGHT);
+      } else if (e.type == EventType.POINTER_UP) {
+        this.adapter_.sendKeyUpEvent('', KeyCodes.ARROW_RIGHT);
+      }
+      break;
+    case ElementType.EN_SWITCHER:
+      if (e.type == EventType.POINTER_UP) {
+        key = /** @type {!content.EnSwitcherKey} */ (softKey);
+        this.adapter_.toggleLanguageState(this.model_.stateManager.isEnMode);
+        this.model_.stateManager.isEnMode = !this.model_.stateManager.isEnMode;
+        key.update();
+      }
+      break;
+    case ElementType.SPACE_KEY:
+      key = /** @type {!content.SpaceKey} */ (softKey);
+      var doubleSpacePeriod = this.model_.settings.doubleSpacePeriod;
+      if (e.type == EventType.POINTER_UP || (!doubleSpacePeriod && e.type ==
+          EventType.DOUBLE_CLICK_END)) {
+        this.adapter_.sendKeyDownAndUpEvent(key.getCharacter(),
+            KeyCodes.SPACE);
+        this.clearUnstickyState_();
+      } else if (e.type == EventType.DOUBLE_CLICK && doubleSpacePeriod) {
+        this.adapter_.doubleClickOnSpaceKey();
+      }
+      break;
+
+    case ElementType.SWITCHER_KEY:
+      key = /** @type {!content.SwitcherKey} */ (softKey);
+      if (e.type == EventType.POINTER_UP) {
+        this.statistics_.recordSwitch(key.toKeyset);
+        if (this.isSubKeyset_(key.toKeyset, this.currentKeyset_)) {
+          this.model_.stateManager.reset();
+          this.container_.update();
+          this.updateContextModifierState_();
+          this.container_.menuView.hide();
+        } else {
+          this.resetAll_();
+        }
+        // Switch to the specific keyboard.
+        this.switchToKeySet(key.toKeyset);
+        if (key.record) {
+          this.model_.settings.savePreference(
+              util.getConfigName(key.toKeyset),
+              key.toKeyset);
+        }
+      }
+      break;
+
+    case ElementType.COMPACT_KEY:
+      key = /** @type {!content.CompactKey} */ (softKey);
+      if (e.type == EventType.LONG_PRESS) {
+        this.container_.altDataView.show(
+            key, goog.i18n.bidi.isRtlLanguage(this.languageCode_));
+      } else if (e.type == EventType.POINTER_UP) {
+        this.model_.stateManager.triggerChording();
+        this.adapter_.sendKeyDownAndUpEvent(key.getActiveCharacter(), '', 0,
+            this.getSpatialData_(key, e.x, e.y));
+        this.clearUnstickyState_();
+        key.flickerredCharacter = '';
+      }
+      break;
+
+    case ElementType.HIDE_KEYBOARD_KEY:
+      if (e.type == EventType.POINTER_UP) {
+        this.adapter_.hideKeyboard();
+      }
+      break;
+
+    case ElementType.MENU_KEY:
+      key = /** @type {!content.MenuKey} */ (softKey);
+      if (e.type == EventType.POINTER_DOWN) {
+        var isCompact = this.currentKeyset_.indexOf('compact') != -1;
+        var remappedKeyset = this.getRemappedKeyset_(this.currentKeyset_);
+        var keysetData = this.keysetDataMap_[remappedKeyset];
+        var enableCompact = !this.adapter_.isA11yMode &&
+            !!keysetData[SpecNodeName.HAS_COMPACT_KEYBOARD] &&
+            this.model_.settings.supportCompact;
+        var self = this;
+        var currentKeyset = this.currentKeyset_;
+        var hasHwt = !this.adapter_.isPasswordBox() &&
+            !Controller.DISABLE_HWT && goog.object.contains(
+            InputToolCode, this.getHwtInputToolCode_());
+        var enableSettings = this.shouldEnableSettings() &&
+            window.inputview && inputview.openSettings;
+        this.adapter_.getInputMethods(function(inputMethods) {
+          this.container_.menuView.show(key, currentKeyset, isCompact,
+              enableCompact, this.currentInputMethod_, inputMethods, hasHwt,
+              enableSettings, this.adapter_.isExperimental);
+        }.bind(this));
+      }
+      break;
+
+    case ElementType.GLOBE_KEY:
+      if (e.type == EventType.POINTER_UP) {
+        this.adapter_.clearModifierStates();
+        this.adapter_.setModifierState(
+            i18n.input.chrome.inputview.StateType.CTRL, true);
+        this.adapter_.sendKeyDownAndUpEvent(' ', KeyCodes.SPACE, 0x20);
+        this.adapter_.setModifierState(
+            i18n.input.chrome.inputview.StateType.CTRL, false);
+      }
+      break;
+    case ElementType.IME_SWITCH:
+      key = /** @type {!content.FunctionalKey} */ (softKey);
+      this.adapter_.sendKeyDownAndUpEvent('', key.id);
+      break;
+  }
+  // Play key sound on pointer up.
+  if (e.type == EventType.POINTER_UP)
+    this.soundController_.onKeyUp(softKey.type);
+};
+
+
+/**
+ * Clears unsticky state.
+ *
+ * @private
+ */
+Controller.prototype.clearUnstickyState_ = function() {
+  if (this.model_.stateManager.hasUnStickyState()) {
+    for (var key in StateType) {
+      var value = StateType[key];
+      if (this.model_.stateManager.hasState(value) &&
+          !this.model_.stateManager.isSticky(value)) {
+        this.changeState_(value, false, false);
+      }
+    }
+  }
+  this.container_.update();
+};
+
+
+/**
+ * Stops the auto-repeat for backspace.
+ *
+ * @private
+ */
+Controller.prototype.stopBackspaceAutoRepeat_ = function() {
+  goog.dispose(this.backspaceAutoRepeat_);
+  this.backspaceAutoRepeat_ = null;
+  this.adapter_.sendKeyUpEvent('\u0008', KeyCodes.BACKSPACE);
+  this.backspaceRepeated_ = 0;
+};
+
+
+/**
+ * The tick for the backspace key.
+ *
+ * @private
+ */
+Controller.prototype.backspaceTick_ = function() {
+  if (this.backspaceRepeated_ >= Controller.BACKSPACE_REPEAT_LIMIT_) {
+    this.stopBackspaceAutoRepeat_();
+    return;
+  }
+  this.backspaceRepeated_++;
+  this.backspaceDown_();
+  this.soundController_.onKeyRepeat(ElementType.BACKSPACE_KEY);
+
+  if (this.backspaceAutoRepeat_) {
+    this.backspaceAutoRepeat_.start(75);
+  } else {
+    this.backspaceAutoRepeat_ = new goog.async.Delay(
+        goog.bind(this.backspaceTick_, this), 300);
+    this.backspaceAutoRepeat_.start();
+  }
+};
+
+
+/**
+ * Callback for VISIBILITY_CHANGE.
+ *
+ * @private
+ */
+Controller.prototype.onVisibilityChange_ = function() {
+  if (!this.adapter_.isVisible) {
+    this.resetAll_();
+  }
+};
+
+
+/**
+ * Resets the whole keyboard include clearing candidates,
+ * reset modifier state, etc.
+ *
+ * @private
+ */
+Controller.prototype.resetAll_ = function() {
+  this.clearCandidates_();
+  this.container_.candidateView.hideNumberRow();
+  this.model_.stateManager.reset();
+  this.container_.update();
+  this.updateContextModifierState_();
+  this.deadKey_ = '';
+  this.resize();
+  this.container_.expandedCandidateView.close();
+  this.container_.menuView.hide();
+};
+
+
+/**
+ * Callback when the context is changed.
+ *
+ * @private
+ */
+Controller.prototype.onContextFocus_ = function() {
+  this.resetAll_();
+  this.switchToKeySet(this.getActiveKeyset_());
+};
+
+
+/**
+ * Callback when surrounding text is changed.
+ *
+ * @param {!i18n.input.chrome.inputview.events.SurroundingTextChangedEvent} e .
+ * @private
+ */
+Controller.prototype.onSurroundingTextChanged_ = function(e) {
+  if (!this.model_.settings.autoCapital || !e.text) {
+    return;
+  }
+
+  var isShiftEnabled = this.model_.stateManager.hasState(StateType.SHIFT);
+  var needAutoCap = this.model_.settings.autoCapital &&
+      util.needAutoCap(e.text);
+  if (needAutoCap && !isShiftEnabled) {
+    this.changeState_(StateType.SHIFT, true, false);
+    this.shiftForAutoCapital_ = true;
+  } else if (!needAutoCap && this.shiftForAutoCapital_) {
+    this.changeState_(StateType.SHIFT, false, false);
+  }
+};
+
+
+/**
+ * Callback for Context blurs.
+ *
+ * @private
+ */
+Controller.prototype.onContextBlur_ = function() {
+  this.clearCandidates_();
+  this.deadKey_ = '';
+  this.container_.menuView.hide();
+};
+
+
+/**
+ * Backspace key is down.
+ *
+ * @private
+ */
+Controller.prototype.backspaceDown_ = function() {
+  if (this.container_.hasStrokesOnCanvas()) {
+    this.clearCandidates_();
+    this.container_.cleanStroke();
+  } else {
+    this.adapter_.sendKeyDownEvent('\u0008', KeyCodes.BACKSPACE);
+  }
+};
+
+
+/**
+ * Callback for state change.
+ *
+ * @param {StateType} stateType The state type.
+ * @param {boolean} enable True to enable the state.
+ * @param {boolean} isSticky True to make the state sticky.
+ * @private
+ */
+Controller.prototype.changeState_ = function(stateType, enable, isSticky) {
+  if (stateType == StateType.ALTGR) {
+    var code = KeyCodes.ALT_RIGHT;
+    if (enable) {
+      this.adapter_.sendKeyDownEvent('', code);
+    } else {
+      this.adapter_.sendKeyUpEvent('', code);
+    }
+  }
+  if (stateType == StateType.SHIFT) {
+    this.shiftForAutoCapital_ = false;
+  }
+  var isEnabledBefore = this.model_.stateManager.hasState(stateType);
+  var isStickyBefore = this.model_.stateManager.isSticky(stateType);
+  this.model_.stateManager.setState(stateType, enable);
+  this.model_.stateManager.setSticky(stateType, isSticky);
+  if (isEnabledBefore != enable || isStickyBefore != isSticky) {
+    this.container_.update();
+  }
+};
+
+
+/**
+ * Updates the modifier state for context.
+ *
+ * @private
+ */
+Controller.prototype.updateContextModifierState_ = function() {
+  var stateManager = this.model_.stateManager;
+  this.adapter_.setModifierState(StateType.ALT,
+      stateManager.hasState(StateType.ALT));
+  this.adapter_.setModifierState(StateType.CTRL,
+      stateManager.hasState(StateType.CTRL));
+  this.adapter_.setModifierState(StateType.CAPSLOCK,
+      stateManager.hasState(StateType.CAPSLOCK));
+  if (!this.shiftForAutoCapital_) {
+    // If shift key is automatically on because of feature - autoCapital,
+    // Don't set modifier state to adapter.
+    this.adapter_.setModifierState(StateType.SHIFT,
+        stateManager.hasState(StateType.SHIFT));
+  }
+};
+
+
+/**
+ * Callback for AUTO-COMPLETE event.
+ *
+ * @param {!i18n.input.chrome.DataSource.CandidatesBackEvent} e .
+ * @private
+ */
+Controller.prototype.onCandidatesBack_ = function(e) {
+  this.candidatesInfo_ = new i18n.input.chrome.inputview.CandidatesInfo(
+      e.source, e.candidates);
+  this.showCandidates_(e.source, e.candidates, Controller.CandidatesOperation.
+      NONE);
+};
+
+
+/**
+ * Shows the candidates to the candidate view.
+ *
+ * @param {string} source The source text.
+ * @param {!Array.<!Object>} candidates The candidate text list.
+ * @param {Controller.CandidatesOperation} operation .
+ * @private
+ */
+Controller.prototype.showCandidates_ = function(source, candidates,
+    operation) {
+  var state = !!source ? ExpandedCandidateView.State.COMPLETION_CORRECTION :
+      ExpandedCandidateView.State.PREDICTION;
+  var expandView = this.container_.expandedCandidateView;
+  var expand = false;
+  if (operation == Controller.CandidatesOperation.NONE) {
+    expand = expandView.state == state;
+  } else {
+    expand = operation == Controller.CandidatesOperation.EXPAND;
+  }
+
+  if (candidates.length == 0) {
+    this.clearCandidates_();
+    expandView.state = ExpandedCandidateView.State.NONE;
+    return;
+  }
+
+  // The compact pinyin needs full candidates instead of three candidates.
+  var isThreeCandidates = this.currentKeyset_.indexOf('compact') != -1 &&
+      this.currentKeyset_.indexOf('pinyin-zh-CN') == -1;
+  if (isThreeCandidates) {
+    if (candidates.length > 1) {
+      // Swap the first candidate and the second candidate.
+      var tmp = candidates[0];
+      candidates[0] = candidates[1];
+      candidates[1] = tmp;
+    }
+  }
+  var isHwt = Controller.HANDWRITING_VIEW_CODE_ == this.currentKeyset_;
+  this.container_.candidateView.showCandidates(candidates, isThreeCandidates,
+      this.model_.settings.candidatesNavigation && !isHwt);
+
+  if (expand) {
+    expandView.state = state;
+    this.container_.currentKeysetView.setVisible(false);
+    expandView.showCandidates(candidates,
+        this.container_.candidateView.candidateCount);
+    this.container_.candidateView.switchToIcon(CandidateView.IconType.
+        SHRINK_CANDIDATES, true);
+  } else {
+    expandView.state = ExpandedCandidateView.State.NONE;
+    expandView.setVisible(false);
+    this.container_.currentKeysetView.setVisible(true);
+  }
+};
+
+
+/**
+ * Clears candidates.
+ *
+ * @private
+ */
+Controller.prototype.clearCandidates_ = function() {
+  this.candidatesInfo_ = i18n.input.chrome.inputview.CandidatesInfo.getEmpty();
+  this.container_.candidateView.clearCandidates();
+  this.container_.expandedCandidateView.close();
+  this.container_.expandedCandidateView.state = ExpandedCandidateView.State.
+      NONE;
+  if (this.container_.currentKeysetView) {
+    this.container_.currentKeysetView.setVisible(true);
+  }
+  this.container_.candidateView.switchToIcon(CandidateView.IconType.BACK,
+      Controller.HANDWRITING_VIEW_CODE_ == this.currentKeyset_);
+};
+
+
+/**
+ * Callback when the layout is loaded.
+ *
+ * @param {!i18n.input.chrome.inputview.events.LayoutLoadedEvent} e The event.
+ * @private
+ */
+Controller.prototype.onLayoutLoaded_ = function(e) {
+  var layoutID = e.data['layoutID'];
+  this.layoutDataMap_[layoutID] = e.data;
+  this.perfTracker_.tick(PerfTracker.TickName.LAYOUT_LOADED);
+  this.maybeCreateViews_();
+};
+
+
+/**
+ * Creates the whole view.
+ *
+ * @private
+ */
+Controller.prototype.maybeCreateViews_ = function() {
+  if (!this.isSettingReady) {
+    return;
+  }
+
+  for (var keyset in this.keysetDataMap_) {
+    var keysetData = this.keysetDataMap_[keyset];
+    var layoutId = keysetData[SpecNodeName.LAYOUT];
+    var layoutData = this.layoutDataMap_[layoutId];
+    if (!this.container_.keysetViewMap[keyset] && layoutData) {
+      var conditions = {};
+      conditions[ConditionName.SHOW_ALTGR] =
+          keysetData[SpecNodeName.HAS_ALTGR_KEY];
+
+      conditions[ConditionName.SHOW_MENU] =
+          keysetData[SpecNodeName.SHOW_MENU_KEY];
+      // In symbol and more keysets, we want to show a symbol key in the globe
+      // SoftKeyView. So this view should alway visible in the two keysets.
+      // Currently, SHOW_MENU_KEY is false for the two keysets, so we use
+      // !keysetData[SpecNodeName.SHOW_MENU_KEY] here.
+      conditions[ConditionName.SHOW_GLOBE_OR_SYMBOL] =
+          !keysetData[SpecNodeName.SHOW_MENU_KEY] ||
+          this.adapter_.showGlobeKey;
+      conditions[ConditionName.SHOW_EN_SWITCHER_KEY] = false;
+
+      // If the view for the keyboard code doesn't exist, and the layout
+      // data is ready, then creates the view.
+      this.container_.addKeysetView(keysetData, layoutData, keyset,
+          this.languageCode_, this.model_, this.title_, conditions);
+      this.perfTracker_.tick(PerfTracker.TickName.KEYBOARD_CREATED);
+    }
+  }
+  this.switchToKeySet(this.getActiveKeyset_());
+};
+
+
+/**
+ * Switch to a specific keyboard.
+ *
+ * @param {string} keyset The keyset name.
+ */
+Controller.prototype.switchToKeySet = function(keyset) {
+  if (!this.isSettingReady) {
+    return;
+  }
+
+  var lastKeysetView = this.container_.currentKeysetView;
+  var ret = this.container_.switchToKeyset(this.getRemappedKeyset_(keyset),
+      this.title_, this.adapter_.isPasswordBox(), this.adapter_.isA11yMode,
+      keyset, this.currentKeyset_, this.languageCode_);
+
+  // Update the keyset of current context type.
+  this.contextTypeToKeysetMap_[this.currentInputMethod_][
+      this.adapter_.getContextType()] = keyset;
+
+  if (ret) {
+    this.updateLanguageState_(this.currentKeyset_, keyset);
+    // Deactivate the last keyset view instance.
+    if (lastKeysetView) {
+      lastKeysetView.deactivate(this.currentKeyset_);
+    }
+    this.currentKeyset_ = keyset;
+
+    this.resize(Controller.DEV);
+    this.statistics_.setCurrentLayout(keyset);
+    // Activate the current key set view instance.
+    this.container_.currentKeysetView.activate(keyset);
+    this.perfTracker_.tick(PerfTracker.TickName.KEYBOARD_SHOWN);
+    this.perfTracker_.stop();
+  } else {
+    this.loadResource_(keyset);
+  }
+};
+
+
+/**
+ * Callback when the configuration is loaded.
+ *
+ * @param {!i18n.input.chrome.inputview.events.ConfigLoadedEvent} e The event.
+ * @private
+ */
+Controller.prototype.onConfigLoaded_ = function(e) {
+  var data = e.data;
+  var keyboardCode = data[i18n.input.chrome.inputview.SpecNodeName.ID];
+  this.keysetDataMap_[keyboardCode] = data;
+  this.perfTracker_.tick(PerfTracker.TickName.KEYSET_LOADED);
+  var context = data[i18n.input.chrome.inputview.SpecNodeName.ON_CONTEXT];
+  if (context && !this.adapter_.isA11yMode) {
+    var keySetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_];
+    if (!keySetMap) {
+      keySetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_] = {};
+    }
+    keySetMap[context] = keyboardCode;
+  }
+
+  var layoutId = data[i18n.input.chrome.inputview.SpecNodeName.LAYOUT];
+  var layoutData = this.layoutDataMap_[layoutId];
+  if (layoutData) {
+    this.maybeCreateViews_();
+  } else {
+    this.model_.loadLayout(data[i18n.input.chrome.inputview.SpecNodeName.
+        LAYOUT]);
+  }
+};
+
+
+/**
+ * Resizes the whole UI.
+ *
+ * @param {boolean=} opt_ignoreWindowResize .
+ */
+Controller.prototype.resize = function(opt_ignoreWindowResize) {
+  var height;
+  var widthPercent;
+  var candidateViewHeight;
+  var isHorizontal = screen.width > screen.height;
+  var isWideScreen = (Math.min(screen.width, screen.height) / Math.max(
+      screen.width, screen.height)) < 0.6;
+  this.model_.stateManager.covariance.update(isWideScreen, isHorizontal,
+      this.adapter_.isA11yMode);
+  if (this.adapter_.isA11yMode) {
+    height = SizeSpec.A11Y_HEIGHT;
+    widthPercent = screen.width > screen.height ? SizeSpec.A11Y_WIDTH_PERCENT.
+        HORIZONTAL : SizeSpec.A11Y_WIDTH_PERCENT.VERTICAL;
+    candidateViewHeight = SizeSpec.A11Y_CANDIDATE_VIEW_HEIGHT;
+  } else {
+    var keyset = this.keysetDataMap_[this.currentKeyset_];
+    var layout = keyset && keyset[SpecNodeName.LAYOUT];
+    var data = layout && this.layoutDataMap_[layout];
+    var spec = data && data[SpecNodeName.WIDTH_PERCENT] ||
+        SizeSpec.NON_A11Y_WIDTH_PERCENT;
+    height = SizeSpec.NON_A11Y_HEIGHT;
+    if (isHorizontal) {
+      if (isWideScreen) {
+        widthPercent = spec.HORIZONTAL_WIDE_SCREEN;
+      } else {
+        widthPercent = spec.HORIZONTAL;
+      }
+    } else {
+      widthPercent = spec.VERTICAL;
+    }
+    candidateViewHeight = SizeSpec.NON_A11Y_CANDIDATE_VIEW_HEIGHT;
+  }
+
+  var viewportSize = goog.dom.getViewportSize();
+  if (viewportSize.height != height && !opt_ignoreWindowResize) {
+    window.resizeTo(screen.width, height);
+    return;
+  }
+
+  this.container_.resize(screen.width, height, widthPercent,
+      candidateViewHeight);
+  if (this.container_.currentKeysetView) {
+    this.isKeyboardReady = true;
+  }
+};
+
+
+/**
+ * Loads the resources, for currentKeyset, passwdKeyset, handwriting,
+ * emoji, etc.
+ *
+ * @private
+ */
+Controller.prototype.loadAllResources_ = function() {
+  var keysetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_];
+  goog.array.forEach([keysetMap[ContextType.DEFAULT],
+    Controller.HANDWRITING_VIEW_CODE_,
+    Controller.EMOJI_VIEW_CODE_,
+    keysetMap[ContextType.PASSWORD]], function(keyset) {
+    this.loadResource_(keyset);
+  }, this);
+};
+
+
+/**
+ * Gets the remapped keyset.
+ *
+ * @param {string} keyset .
+ * @return {string} The remapped keyset.
+ * @private
+ */
+Controller.prototype.getRemappedKeyset_ = function(keyset) {
+  if (goog.array.contains(util.KEYSETS_USE_US, keyset)) {
+    return 'us';
+  }
+  return keyset;
+};
+
+
+/**
+ * Loads a single resource.
+ *
+ * @param {string} keyset .
+ * loaded.
+ * @private
+ */
+Controller.prototype.loadResource_ = function(keyset) {
+  var remapped = this.getRemappedKeyset_(keyset);
+  if (!this.keysetDataMap_[remapped]) {
+    if (/^m17n:/.test(remapped)) {
+      this.m17nModel_.loadConfig(remapped);
+    } else {
+      this.model_.loadConfig(remapped);
+    }
+    return;
+  }
+
+  var layoutId = this.keysetDataMap_[remapped][SpecNodeName.LAYOUT];
+  if (!this.layoutDataMap_[layoutId]) {
+    this.model_.loadLayout(layoutId);
+    return;
+  }
+};
+
+
+/**
+ * Sets the keyboard.
+ *
+ * @param {string} keyset The keyboard keyset.
+ * @param {string} languageCode The language code for this keyboard.
+ * @param {string} passwordLayout The layout for password box.
+ * @param {string} title The title for this keyboard.
+ */
+Controller.prototype.initialize = function(keyset, languageCode, passwordLayout,
+    title) {
+  this.perfTracker_.restart();
+  this.adapter_.getCurrentInputMethod(function(currentInputMethod) {
+    this.languageCode_ = languageCode;
+    this.currentInputMethod_ = currentInputMethod;
+    var keySetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_];
+    if (!keySetMap) {
+      keySetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_] = {};
+    }
+    keySetMap[ContextType.PASSWORD] = passwordLayout;
+    keySetMap[ContextType.DEFAULT] = keyset;
+
+    this.title_ = title;
+    this.isSettingReady = false;
+    this.model_.settings = new i18n.input.chrome.inputview.Settings();
+    this.adapter_.initialize(languageCode ? languageCode.split('-')[0] : '');
+    this.loadAllResources_();
+    this.switchToKeySet(this.getActiveKeyset_());
+
+    // Set language attribute and font of body.
+    document.body.setAttribute('lang', this.languageCode_);
+    goog.dom.classlist.add(document.body, Css.FONT);
+  }.bind(this));
+};
+
+
+/** @override */
+Controller.prototype.disposeInternal = function() {
+  goog.dispose(this.container_);
+  goog.dispose(this.adapter_);
+  goog.dispose(this.handler_);
+  goog.dispose(this.soundController_);
+
+  goog.base(this, 'disposeInternal');
+};
+
+
+/**
+ * Gets the handwriting Input Tool code of current language code.
+ *
+ * @return {string} The handwriting Input Tool code.
+ * @private
+ */
+Controller.prototype.getHwtInputToolCode_ = function() {
+  return this.languageCode_.split(/_|-/)[0] +
+      Controller.HANDWRITING_CODE_SUFFIX_;
+};
+
+
+/**
+ * True to enable settings link.
+ *
+ * @return {boolean} .
+ */
+Controller.prototype.shouldEnableSettings = function() {
+  return !this.adapter_.screen || this.adapter_.screen == 'normal';
+};
+
+
+/**
+ * Gets the active keyset, if there is a keyset to switch, return it.
+ * otherwise if it's a password box, return the password keyset,
+ * otherwise return the current keyset.
+ *
+ * @return {string} .
+ * @private
+ */
+Controller.prototype.getActiveKeyset_ = function() {
+  var keySetMap = this.contextTypeToKeysetMap_[this.currentInputMethod_];
+  return keySetMap[this.adapter_.getContextType()] ||
+      keySetMap[ContextType.DEFAULT];
+};
+
+
+/**
+ * True if keysetB is the sub keyset of keysetA.
+ *
+ * @param {string} keysetA .
+ * @param {string} keysetB .
+ * @return {boolean} .
+ * @private
+ */
+Controller.prototype.isSubKeyset_ = function(keysetA, keysetB) {
+  var segmentsA = keysetA.split('.');
+  var segmentsB = keysetB.split('.');
+  return segmentsA.length >= 2 && segmentsB.length >= 2 &&
+      segmentsA[0] == segmentsB[0] && segmentsA[1] == segmentsB[1];
+};
+
+
+/**
+ * Updates the compact pinyin to set the inputcode for english and pinyin.
+ *
+ * @param {string} fromRawKeyset .
+ * @param {string} toRawKeyset .
+ * @private
+ */
+Controller.prototype.updateLanguageState_ =
+    function(fromRawKeyset, toRawKeyset) {
+  if (fromRawKeyset == 'pinyin-zh-CN.en.compact.qwerty' &&
+      toRawKeyset.indexOf('en.compact') == -1) {
+    this.adapter_.toggleLanguageState(true);
+  } else if (fromRawKeyset.indexOf('en.compact') == -1 &&
+      toRawKeyset == 'pinyin-zh-CN.en.compact.qwerty') {
+    this.adapter_.toggleLanguageState(false);
+  } else if (goog.array.contains(
+      i18n.input.chrome.inputview.util.KEYSETS_HAVE_EN_SWTICHER,
+      toRawKeyset)) {
+    this.adapter_.toggleLanguageState(true);
+    this.model_.stateManager.isEnMode = false;
+    this.container_.currentKeysetView.update();
+  }
+};
+});  // goog.scope