001/* 002 * Copyright 2012 GWT-Bootstrap 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package com.github.gwtbootstrap.client.ui.resources; 017 018import com.google.gwt.dom.client.Document; 019import com.google.gwt.dom.client.HeadElement; 020import com.google.gwt.dom.client.ScriptElement; 021 022/** 023 * Methods to inject JavaScript code into the document header. 024 * 025 * @since 2.0.4.0 026 * 027 * @author Carlos Alexandro Becker 028 */ 029public class JavaScriptInjector extends AbstractInjector { 030 031 /** 032 * Injects the JavaScript code into a 033 * {@code <script type="text/javascript">...</script>} element in the 034 * document header. 035 * 036 * @param javascript 037 * the JavaScript code 038 */ 039 public static void inject(String javascript) { 040 HeadElement head = getHead(); 041 ScriptElement element = createScriptElement(); 042 element.setText(javascript); 043 head.appendChild(element); 044 } 045 046 private static ScriptElement createScriptElement() { 047 ScriptElement script = Document.get().createScriptElement(); 048 script.setAttribute("type", "text/javascript"); 049 script.setAttribute("charset", "UTF-8"); 050 return script; 051 } 052 053}