001package org.gwtbootstrap3.client; 002 003/* 004 * #%L 005 * GwtBootstrap3 006 * %% 007 * Copyright (C) 2013 - 2015 GwtBootstrap3 008 * %% 009 * Licensed under the Apache License, Version 2.0 (the "License"); 010 * you may not use this file except in compliance with the License. 011 * You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, software 016 * distributed under the License is distributed on an "AS IS" BASIS, 017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 018 * See the License for the specific language governing permissions and 019 * limitations under the License. 020 * #L% 021 */ 022 023import com.google.gwt.core.client.EntryPoint; 024import com.google.gwt.core.client.ScriptInjector; 025 026/** 027 * Provides script injection for jQuery and boostrap if they aren't already loaded. 028 * 029 * @author Sven Jacobs 030 * @author Steven Jardine 031 */ 032public class GwtBootstrap3EntryPoint implements EntryPoint { 033 034 /** 035 * Check to see if Boostrap is loaded already. 036 * 037 * @return true is Boostreap loaded, false otherwise. 038 */ 039 private native boolean isBootstrapLoaded() /*-{ 040 return typeof $wnd['jQuery'].fn.emulateTransitionEnd !== 'undefined' 041 }-*/; 042 043 /** 044 * Check to see if jQuery is loaded already 045 * 046 * @return true is jQuery is loaded, false otherwise 047 */ 048 private native boolean isjQueryLoaded() /*-{ 049 return (typeof $wnd['jQuery'] !== 'undefined'); 050 }-*/; 051 052 /** {@inheritDoc} */ 053 @Override 054 public void onModuleLoad() { 055 if (!isjQueryLoaded()) { 056 ScriptInjector.fromString(GwtBootstrap3ClientBundle.INSTANCE.jQuery().getText()) 057 .setWindow(ScriptInjector.TOP_WINDOW) 058 .inject(); 059 } 060 061 if (!isBootstrapLoaded()) { 062 ScriptInjector.fromString(GwtBootstrap3ClientBundle.INSTANCE.bootstrap().getText()) 063 .setWindow(ScriptInjector.TOP_WINDOW) 064 .inject(); 065 } 066 } 067 068}