text: // Copyright 2009 The Closure Library Authors. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //      http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS-IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  // All Rights Reserved
  
  /**
   * @fileoverview Plugin for generating emoticons.
   */
  
  goog.provide('goog.editor.plugins.Emoticons');
  
  goog.require('goog.dom.TagName');
  goog.require('goog.editor.Plugin');
  goog.require('goog.editor.range');
  goog.require('goog.functions');
  goog.require('goog.ui.emoji.Emoji');
  goog.require('goog.userAgent');
  
  
  
  /**
   * Plugin for generating emoticons.
   *
   * @constructor
   * @extends {goog.editor.Plugin}
   * @final
   */
  goog.editor.plugins.Emoticons = function() {
    goog.editor.plugins.Emoticons.base(this, 'constructor');
  };
  goog.inherits(goog.editor.plugins.Emoticons, goog.editor.Plugin);
  
  
  /** The emoticon command. */
  goog.editor.plugins.Emoticons.COMMAND = '+emoticon';
  
  
  /** @override */
  goog.editor.plugins.Emoticons.prototype.getTrogClassId =
      goog.functions.constant(goog.editor.plugins.Emoticons.COMMAND);
  
  
  /** @override */
  goog.editor.plugins.Emoticons.prototype.isSupportedCommand = function(command) {
    return command == goog.editor.plugins.Emoticons.COMMAND;
  };
  
  
  /**
   * Inserts an emoticon into the editor at the cursor location. Places the
   * cursor to the right of the inserted emoticon.
   * @param {string} command Command to execute.
   * @param {*=} opt_arg Emoji to insert.
   * @return {!Object|undefined} The result of the command.
   * @override
   */
  goog.editor.plugins.Emoticons.prototype.execCommandInternal = function(
      command, opt_arg) {
    var emoji = /** @type {goog.ui.emoji.Emoji} */ (opt_arg);
  
    var styleProperties = 'margin:0 0.2ex;vertical-align:middle;';
    var emojiHeight = emoji.getHeight();
    styleProperties += emojiHeight ? 'height:' + emojiHeight + 'px;' : '';
    var emojiWidth = emoji.getWidth();
    styleProperties += emojiWidth ? 'width:' + emojiWidth + 'px;' : '';
  
    var dom = this.getFieldDomHelper();
    var imgAttributes = {'src': emoji.getUrl(), 'style': styleProperties};
    if (emoji.getAltText()) {
      imgAttributes['alt'] = emoji.getAltText();
    }
    var img = dom.createDom(goog.dom.TagName.IMG, imgAttributes);
  
    img.setAttribute(goog.ui.emoji.Emoji.ATTRIBUTE, emoji.getId());
    img.setAttribute(goog.ui.emoji.Emoji.DATA_ATTRIBUTE, emoji.getId());
  
    this.getFieldObject().getRange().replaceContentsWithNode(img);
  
    // IE8 does the right thing with the cursor, and has a js error when we try
    // to place the cursor manually.
    // IE9 loses the cursor when the window is focused, so focus first.
    if (!goog.userAgent.IE || goog.userAgent.isDocumentModeOrHigher(9)) {
      this.getFieldObject().focus();
      goog.editor.range.placeCursorNextTo(img, false);
    }
  };
  