Add third_party/google-input-tools: Take 2

third_party/google_input_tools/src/chrome/os/inputview/elements/layout/extendedlayout.js

Index: third_party/google_input_tools/src/chrome/os/inputview/elements/layout/extendedlayout.js
diff --git a/third_party/google_input_tools/src/chrome/os/inputview/elements/layout/extendedlayout.js b/third_party/google_input_tools/src/chrome/os/inputview/elements/layout/extendedlayout.js
new file mode 100644
index 0000000000000000000000000000000000000000..1b7e759cde10541ff0232d481cbde2b788ede8d0
--- /dev/null
+++ b/third_party/google_input_tools/src/chrome/os/inputview/elements/layout/extendedlayout.js
@@ -0,0 +1,229 @@
+// 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.elements.layout.ExtendedLayout');
+
+goog.require('goog.dom.classlist');
+goog.require('goog.style');
+goog.require('i18n.input.chrome.inputview.Css');
+goog.require('i18n.input.chrome.inputview.elements.Element');
+goog.require('i18n.input.chrome.inputview.elements.ElementType');
+goog.require('i18n.input.chrome.inputview.elements.Weightable');
+
+
+goog.scope(function() {
+var Css = i18n.input.chrome.inputview.Css;
+
+
+
+/**
+ * The extended layout. Each of its children has the same width as its parent.
+ * It can be wider than its parent.
+ *
+ * @param {string} id The id.
+ * @param {goog.events.EventTarget=} opt_eventTarget The event target.
+ * @param {i18n.input.chrome.inputview.Css=} opt_iconCssClass The css class.
+ * @constructor
+ * @extends {i18n.input.chrome.inputview.elements.Element}
+ * @implements {i18n.input.chrome.inputview.elements.Weightable}
+ */
+i18n.input.chrome.inputview.elements.layout.ExtendedLayout = function(id,
+    opt_eventTarget, opt_iconCssClass) {
+  goog.base(this, id, i18n.input.chrome.inputview.elements.ElementType.
+      EXTENDED_LAYOUT, opt_eventTarget);
+
+  /**
+   * The icon Css class for the extendedlayout.
+   *
+   * @type {i18n.input.chrome.inputview.Css}
+   */
+  this.iconCssClass = Css.LINEAR_LAYOUT;
+};
+goog.inherits(i18n.input.chrome.inputview.elements.layout.ExtendedLayout,
+    i18n.input.chrome.inputview.elements.Element);
+var ExtendedLayout = i18n.input.chrome.inputview.elements.layout.ExtendedLayout;
+
+
+/**
+ * The height in weight unit.
+ *
+ * @type {number}
+ * @private
+ */
+ExtendedLayout.prototype.heightInWeight_ = 0;
+
+
+/**
+ * The width in weight unit.
+ *
+ * @type {number}
+ * @private
+ */
+ExtendedLayout.prototype.widthInWeight_ = 0;
+
+
+/**
+ * The time of transition for every transition distance.
+ *
+ * @private {number}
+ */
+ExtendedLayout.BASE_TRANSITION_DURATION_ = 0.2;
+
+
+/**
+ * The transition distance used to calculate transition time.
+ *
+ * @private {number}
+ */
+ExtendedLayout.BASE_TRANSITION_DISTANCE_ = 100;
+
+
+/** @override */
+ExtendedLayout.prototype.getHeightInWeight = function() {
+  return this.heightInWeight_;
+};
+
+
+/** @override */
+ExtendedLayout.prototype.getWidthInWeight = function() {
+  return this.widthInWeight_;
+};
+
+
+/** @override */
+ExtendedLayout.prototype.createDom = function() {
+  goog.base(this, 'createDom');
+  this.elem = this.getElement();
+  goog.dom.classlist.addAll(this.elem,
+      [this.iconCssClass, Css.EMOJI_FONT]);
+};
+
+
+/** @override */
+ExtendedLayout.prototype.enterDocument = function() {
+  goog.base(this, 'enterDocument');
+  this.calculate_();
+};
+
+
+/** @override */
+ExtendedLayout.prototype.resize = function(width, height) {
+  if (width == this.width && height == this.height) {
+    return;
+  }
+  for (var i = 0, len = this.getChildCount(); i < len; i++) {
+    var child =  /** @type {i18n.input.chrome.inputview.elements.Element} */ (
+        this.getChildAt(i));
+    child.resize(width, height);
+  }
+  this.getElement().style.width = width * this.getChildCount();
+  goog.base(this, 'resize', width * this.getChildCount(), height);
+};
+
+
+/**
+ * Calculate the height and weight。
+ *
+ * @private
+ */
+ExtendedLayout.prototype.calculate_ = function() {
+  for (var i = 0; i < this.getChildCount(); i++) {
+    var child = /** @type {i18n.input.chrome.inputview.elements.Weightable} */ (
+        this.getChildAt(i));
+    if (this.heightInWeight_ < child.getHeightInWeight()) {
+      this.heightInWeight_ = child.getHeightInWeight();
+    }
+    this.widthInWeight_ += child.getWidthInWeight();
+  }
+};
+
+
+/**
+ * Switch to a page of the emojiSlider.
+ *
+ * @param {number} pageNum The page to switch to.
+ * @private
+ */
+ExtendedLayout.prototype.gotoPage_ = function(pageNum) {
+  var width = goog.style.getSize(this.getElement()).width;
+  var childNum = this.getChildCount();
+  this.elem.style.marginLeft = 0 - width / childNum * pageNum;
+};
+
+
+/**
+ * Slide to a position.
+ *
+ * @param {number} deltaX The slide distance of x-coordinate.
+ */
+ExtendedLayout.prototype.slide = function(deltaX) {
+  this.elem.style.transition = '';
+  var marginLeft = goog.style.getMarginBox(this.elem).left + deltaX;
+  this.elem.style.marginLeft = marginLeft + 'px';
+};
+
+
+/**
+ * Adjust the marginleft to the beginning of a page.
+ *
+ * @param {number=} opt_distance The distance to adjust to.
+ * @return {number} The page to adjust to after calculation.
+ */
+ExtendedLayout.prototype.adjustMarginLeft = function(opt_distance) {
+  var childNum = this.getChildCount();
+  var width = goog.style.getSize(this.elem).width / childNum;
+  var marginLeft = Math.abs(goog.style.getMarginBox(this.elem).left);
+  var prev = Math.floor(marginLeft / width);
+  var next = prev + 1;
+  var pageNum = 0;
+  if (opt_distance) {
+    if (opt_distance >= 0) {
+      pageNum = prev;
+    } else {
+      pageNum = next;
+    }
+  } else if (marginLeft - prev * width < next * width - marginLeft) {
+    pageNum = prev;
+  } else {
+    pageNum = next;
+  }
+  if (pageNum < 0) {
+    pageNum = 0;
+  } else if (pageNum >= childNum) {
+    pageNum = childNum - 1;
+  }
+  if (opt_distance) {
+    this.elem.style.transition = 'margin-left ' +
+        ExtendedLayout.BASE_TRANSITION_DURATION_ + 's';
+  } else {
+    var transitionDuration = Math.abs(marginLeft - pageNum * width) /
+        ExtendedLayout.BASE_TRANSITION_DISTANCE_ *
+        ExtendedLayout.BASE_TRANSITION_DURATION_;
+    this.elem.style.transition = 'margin-left ' +
+        transitionDuration + 's ease-in';
+  }
+  this.gotoPage_(pageNum);
+  return pageNum;
+};
+
+
+/**
+ * Update the category.
+ *
+ * @param {number} pageNum The page number to switch to.
+ */
+ExtendedLayout.prototype.updateCategory = function(pageNum) {
+  this.elem.style.transition = '';
+  this.gotoPage_(pageNum);
+};
+});  // goog.scope