| // Copyright 2008 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. |
| |
| /** |
| * @fileoverview A simple plugin that inserts 'Hello World!' on command. This |
| * plugin is intended to be an example of a very simple plugin for plugin |
| * developers. |
| * |
| * @author gak@google.com (Gregory Kick) |
| * @see helloworld.html |
| */ |
| |
| goog.provide('goog.demos.editor.HelloWorld'); |
| |
| goog.require('goog.dom'); |
| goog.require('goog.dom.TagName'); |
| goog.require('goog.editor.Plugin'); |
| |
| |
| |
| /** |
| * Plugin to insert 'Hello World!' into an editable field. |
| * @constructor |
| * @extends {goog.editor.Plugin} |
| * @final |
| */ |
| goog.demos.editor.HelloWorld = function() { |
| goog.editor.Plugin.call(this); |
| }; |
| goog.inherits(goog.demos.editor.HelloWorld, goog.editor.Plugin); |
| |
| |
| /** @override */ |
| goog.demos.editor.HelloWorld.prototype.getTrogClassId = function() { |
| return 'HelloWorld'; |
| }; |
| |
| |
| /** |
| * Commands implemented by this plugin. |
| * @enum {string} |
| */ |
| goog.demos.editor.HelloWorld.COMMAND = { |
| HELLO_WORLD: '+helloWorld' |
| }; |
| |
| |
| /** @override */ |
| goog.demos.editor.HelloWorld.prototype.isSupportedCommand = function( |
| command) { |
| return command == goog.demos.editor.HelloWorld.COMMAND.HELLO_WORLD; |
| }; |
| |
| |
| /** |
| * Executes a command. Does not fire any BEFORECHANGE, CHANGE, or |
| * SELECTIONCHANGE events (these are handled by the super class implementation |
| * of {@code execCommand}. |
| * @param {string} command Command to execute. |
| * @override |
| * @protected |
| */ |
| goog.demos.editor.HelloWorld.prototype.execCommandInternal = function( |
| command) { |
| var domHelper = this.getFieldObject().getEditableDomHelper(); |
| var range = this.getFieldObject().getRange(); |
| range.removeContents(); |
| var newNode = |
| domHelper.createDom(goog.dom.TagName.SPAN, null, 'Hello World!'); |
| range.insertNode(newNode, false); |
| }; |